/* =====================================================
   Self-hosted fonts — Google Fonts CDN'e ihtiyaç yok
   ===================================================== */
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-500-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-600-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-600-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-700-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Cinzel';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/Cinzel-700-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Mono-400-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Mono-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Mono-500-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Mono';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Mono-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-400-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 400;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 500;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-500-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 500;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-600-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'IBM Plex Sans';
  font-style: normal;
  font-weight: 600;
  font-stretch: 100%;
  font-display: swap;
  src: url(../assets/fonts/IBM-Plex-Sans-600-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/Oswald-400-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 400;
  font-display: swap;
  src: url(../assets/fonts/Oswald-400-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/Oswald-500-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 500;
  font-display: swap;
  src: url(../assets/fonts/Oswald-500-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../assets/fonts/Oswald-600-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 600;
  font-display: swap;
  src: url(../assets/fonts/Oswald-600-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/Oswald-700-latin-ext.woff2) format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}
@font-face {
  font-family: 'Oswald';
  font-style: normal;
  font-weight: 700;
  font-display: swap;
  src: url(../assets/fonts/Oswald-700-latin.woff2) format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* =========================================================
   TARGON MÜHENDİSLİK — Kurumsal Tasarım Sistemi
   Endüstriyel · Çelik · Mühendislik
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --primary:        #0D8B85;
  --primary-2:      #15A8A0;
  --primary-deep:   #073F3D;
  --accent:         #0FB8AE;
  --accent-2:       #19D0C4;
  --accent-deep:    #0C938C;

  --bg:             #FFFFFF;
  --bg-alt:         #EFF6F5;
  --bg-steel:       #08383A;
  --surface:        #FFFFFF;
  --surface-2:      #F4FAF9;
  --text:           #233030;
  --text-soft:      #46585A;
  --text-muted:     #6E8385;
  --border:         #DCE9E7;
  --border-strong:  #C2D6D3;
  --on-steel:       #E9F4F2;
  --on-steel-muted: #95B7B4;
  --grid-line:      rgba(13,139,133,0.07);

  --shadow-sm: 0 1px 2px rgba(8,40,40,0.06), 0 2px 6px rgba(8,40,40,0.05);
  --shadow-md: 0 8px 24px rgba(8,40,40,0.10);
  --shadow-lg: 0 24px 60px rgba(8,40,40,0.16);

  --maxw: 1200px;
  --nav-h: 76px;
  --radius: 4px;
  --radius-lg: 8px;

  --font-head: "Oswald", "Arial Narrow", sans-serif;
  --font-body: "IBM Plex Sans", system-ui, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, monospace;
  --font-serif: "Cinzel", "Times New Roman", serif;

  --ease: cubic-bezier(0.22, 0.61, 0.36, 1);
}

html[data-theme="dark"] {
  --primary:        #2FC0B6;
  --primary-2:      #1C9690;
  --primary-deep:   #04201F;
  --accent:         #2FD4C7;
  --accent-2:       #4DE6DA;
  --accent-deep:    #1FB6AB;

  --bg:             #07211F;
  --bg-alt:         #0A2A28;
  --bg-steel:       #051A1B;
  --surface:        #0E2E2C;
  --surface-2:      #123633;
  --text:           #E7F3F1;
  --text-soft:      #B6CECB;
  --text-muted:     #7FA09C;
  --border:         #1C443F;
  --border-strong:  #285E58;
  --on-steel:       #E9F4F2;
  --on-steel-muted: #8FB4B0;
  --grid-line:      rgba(80,200,190,0.08);

  --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
  --shadow-md: 0 10px 30px rgba(0,0,0,0.45);
  --shadow-lg: 0 24px 60px rgba(0,0,0,0.55);
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  transition: background .4s var(--ease), color .4s var(--ease);
  overflow-x: hidden;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul { list-style: none; padding: 0; }
input, select, textarea { font-family: inherit; font-size: inherit; }

/* ---------- Typography ---------- */
h1, h2, h3, h4 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.07;
  letter-spacing: 0.005em;
  text-transform: uppercase;
  color: var(--primary);
}
html[data-theme="dark"] h1,
html[data-theme="dark"] h2,
html[data-theme="dark"] h3,
html[data-theme="dark"] h4 { color: var(--text); }

h1 { font-size: clamp(2.6rem, 6.2vw, 5.2rem); font-weight: 700; }
h2 { font-size: clamp(2rem, 4vw, 3.2rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.7rem); }
p { text-wrap: pretty; }

.kicker {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.18em;
  font-size: 0.74rem;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.kicker::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--accent);
  display: inline-block;
}
.kicker.center { justify-content: center; }

.lead { font-size: clamp(1.05rem, 1.5vw, 1.3rem); color: var(--text-soft); line-height: 1.55; }
.muted { color: var(--text-muted); }

/* ---------- Layout ---------- */
.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.section { padding: clamp(64px, 9vw, 120px) 0; }
.section.tight { padding: clamp(48px, 6vw, 80px) 0; }
.section.alt { background: var(--bg-alt); }
.section.steel { background: var(--bg-steel); color: var(--on-steel); }
.section.steel h2, .section.steel h3 { color: #fff; }
.section.steel .lead { color: var(--on-steel-muted); }

.grid { display: grid; gap: 28px; }
.cols-3 { grid-template-columns: repeat(3, 1fr); }
.cols-4 { grid-template-columns: repeat(4, 1fr); }
.cols-2 { grid-template-columns: repeat(2, 1fr); }

.sec-head { max-width: 760px; margin-bottom: clamp(36px, 4vw, 56px); }
.sec-head .kicker { margin-bottom: 18px; }
.sec-head h2 { margin-bottom: 16px; }
.sec-head.center { margin-left: auto; margin-right: auto; text-align: center; }

/* ---------- Blueprint grid background ---------- */
.blueprint {
  background-image:
    linear-gradient(var(--grid-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--grid-line) 1px, transparent 1px);
  background-size: 38px 38px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.6rem;
  font-family: var(--font-head);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: 0.98rem;
  padding: 0.92em 1.7em;
  border-radius: var(--radius);
  transition: transform .2s var(--ease), background .25s var(--ease), color .25s var(--ease), box-shadow .25s var(--ease), border-color .25s;
  white-space: nowrap;
  position: relative;
}
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--accent); color: #fff; box-shadow: 0 6px 18px rgba(15,184,174,0.35); }
.btn-primary:hover { background: var(--accent-deep); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(15,184,174,0.45); }
.btn-steel { background: var(--primary); color: #fff; }
.btn-steel:hover { background: var(--primary-deep); transform: translateY(-2px); }
.btn-ghost { border: 1.5px solid var(--border-strong); color: var(--text); background: transparent; }
.btn-ghost:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.btn-onsteel { border: 1.5px solid rgba(255,255,255,0.4); color: #fff; }
.btn-onsteel:hover { background: #fff; color: var(--primary); transform: translateY(-2px); }
.btn-wa { background: #25D366; color: #fff; }
.btn-wa:hover { background: #1da851; transform: translateY(-2px); }
.btn-lg { font-size: 1.05rem; padding: 1.05em 2em; }

/* ---------- Link arrow ---------- */
.link-arrow {
  font-family: var(--font-head);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  font-weight: 500;
  color: var(--accent);
  display: inline-flex; align-items: center; gap: 0.5rem;
  font-size: 0.95rem;
}
.link-arrow svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.link-arrow:hover svg { transform: translateX(5px); }

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .3s;
  display: flex; flex-direction: column;
}
.card:hover { transform: translateY(-6px); box-shadow: 0 12px 32px rgba(15,184,174,0.22), var(--shadow-md); border-color: var(--accent); }
.card-body { padding: 28px; display: flex; flex-direction: column; gap: 12px; flex: 1; }
.card-body h3 { color: var(--primary); }
html[data-theme="dark"] .card-body h3 { color: var(--text); }
.card-body p { color: var(--text-soft); font-size: 0.98rem; }
.card-foot { margin-top: auto; padding-top: 8px; }

/* product visual placeholder block on cards */
.card-visual {
  aspect-ratio: 16 / 10;
  background:
    linear-gradient(135deg, var(--primary) 0%, var(--primary-2) 100%);
  position: relative;
  display: grid; place-items: center;
  overflow: hidden;
}
.card-visual .ghost-icon { width: 64px; height: 64px; color: rgba(255,255,255,0.5); }
.card-visual::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.06) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.06) 1px, transparent 1px);
  background-size: 24px 24px;
}
.card-visual .corner-tag {
  position: absolute; top: 14px; left: 14px;
  font-family: var(--font-mono); font-size: 0.62rem; letter-spacing: 0.12em;
  text-transform: uppercase; color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.25); padding: 3px 8px; border-radius: 3px;
  z-index: 2;
}

/* ---------- Image placeholder (standalone) ---------- */
.imgph {
  background: var(--surface-2);
  border: 1.5px dashed var(--border-strong);
  border-radius: var(--radius-lg);
  display: grid; place-items: center;
  text-align: center;
  color: var(--text-muted);
  padding: 32px;
  min-height: 240px;
  position: relative;
}
.imgph .ph-inner { display: flex; flex-direction: column; align-items: center; gap: 12px; }
.imgph svg { width: 48px; height: 48px; color: var(--border-strong); }
.imgph .ph-label { font-family: var(--font-mono); font-size: 0.72rem; letter-spacing: 0.14em; text-transform: uppercase; }
.imgph.steel { background: linear-gradient(135deg, var(--primary), var(--primary-2)); border-color: rgba(255,255,255,0.25); color: rgba(255,255,255,0.7); }
.imgph.steel svg { color: rgba(255,255,255,0.4); }
.imgph.tall { min-height: 380px; }

/* ---------- Feature / icon item ---------- */
.feature { display: flex; flex-direction: column; gap: 14px; }
.feature .ficon {
  width: 56px; height: 56px; border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  display: grid; place-items: center; color: var(--accent);
  flex-shrink: 0;
}
.feature .ficon svg { width: 28px; height: 28px; }
.feature h3 { font-size: 1.2rem; }
.feature p { color: var(--text-soft); font-size: 0.96rem; }
.section.steel .feature .ficon { background: color-mix(in srgb, var(--accent) 20%, transparent); }
.section.steel .feature p { color: var(--on-steel-muted); }

/* ---------- Spec / list ---------- */
.spec-list { display: flex; flex-direction: column; gap: 2px; }
.spec-row {
  display: flex; gap: 16px; align-items: flex-start;
  padding: 18px 0; border-bottom: 1px solid var(--border);
}
.spec-row:last-child { border-bottom: none; }
.spec-row .sx { color: var(--accent); flex-shrink: 0; margin-top: 3px; }
.spec-row .sx svg { width: 22px; height: 22px; }
.spec-row h4 { font-size: 1.1rem; margin-bottom: 4px; color: var(--primary); }
html[data-theme="dark"] .spec-row h4 { color: var(--text); }
.spec-row p { color: var(--text-soft); font-size: 0.96rem; }

/* check list */
.checklist { display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; color: var(--text-soft); }
.checklist .ck {
  width: 22px; height: 22px; border-radius: 50%; background: var(--accent);
  color: #fff; display: grid; place-items: center; flex-shrink: 0; margin-top: 2px;
}
.checklist .ck svg { width: 13px; height: 13px; }

/* standard chips */
.chips { display: flex; flex-wrap: wrap; gap: 10px; }
.chip {
  font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.04em;
  padding: 8px 14px; border-radius: 999px;
  background: var(--surface); border: 1px solid var(--border-strong); color: var(--text-soft);
}
.chip strong { color: var(--accent); font-weight: 600; }

/* ---------- Process steps ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step { position: relative; }
.step .snum {
  font-family: var(--font-head); font-weight: 700; font-size: 3.4rem;
  color: var(--accent); line-height: 1; opacity: 0.95;
  -webkit-text-stroke: 0;
}
.step h3 { font-size: 1.25rem; margin: 12px 0 8px; }
.step p { color: var(--text-soft); font-size: 0.95rem; }
.section.steel .step p { color: var(--on-steel-muted); }
.step .sbar { width: 44px; height: 3px; background: var(--accent); margin: 14px 0 0; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: var(--bg-steel);
  color: var(--on-steel);
  overflow: hidden;
  padding: calc(var(--nav-h) + clamp(60px,9vw,110px)) 0 clamp(72px,10vw,130px);
}
.hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.045) 1px, transparent 1px);
  background-size: 46px 46px;
  mask-image: radial-gradient(ellipse 80% 90% at 70% 30%, #000 30%, transparent 85%);
}
.hero .diag {
  position: absolute; top: 0; right: 0; bottom: 0; width: 42%;
  background: linear-gradient(135deg, var(--primary-2), var(--primary-deep));
  clip-path: polygon(28% 0, 100% 0, 100% 100%, 0% 100%);
  opacity: 0.55;
}
.hero .accent-bar { position: absolute; top: 0; left: 0; height: 6px; width: 100%; background: linear-gradient(90deg, var(--accent), transparent 60%); }
.hero-inner { position: relative; z-index: 2; max-width: 880px; }
.hero .kicker { margin-bottom: 20px; }
.hero h1 { color: #fff; margin-bottom: 26px; line-height: 1.05; }
.hero h1 .em { color: var(--accent); }
.hero .lead { color: var(--on-steel-muted); max-width: 640px; margin-bottom: 34px; font-size: clamp(1.05rem,1.6vw,1.35rem); }
.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero-meta { margin-top: 46px; display: flex; flex-wrap: wrap; gap: 30px; }
.hero-meta .hm { display: flex; flex-direction: column; gap: 4px; }
.hero-meta .hm .v { font-family: var(--font-head); font-weight: 600; font-size: 1.05rem; color: #fff; text-transform: uppercase; letter-spacing: 0.04em; }
.hero-meta .hm .l { font-family: var(--font-mono); font-size: 0.68rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--on-steel-muted); }

/* page hero (interior) */
.page-hero {
  position: relative; background: var(--bg-steel); color: var(--on-steel);
  padding: calc(var(--nav-h) + clamp(48px,6vw,80px)) 0 clamp(48px,6vw,80px);
  overflow: hidden;
}
.page-hero::before {
  content: ""; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.05) 1px, transparent 1px);
  background-size: 44px 44px;
  mask-image: radial-gradient(ellipse 70% 100% at 80% 0%, #000, transparent 80%);
}
.page-hero .accent-bar { position: absolute; top: 0; left: 0; height: 6px; width: 100%; background: linear-gradient(90deg, var(--accent), transparent 55%); }
.page-hero-inner { position: relative; z-index: 2; max-width: 820px; }
.page-hero h1 { color: #fff; margin: 16px 0 18px; font-size: clamp(2.2rem,5vw,4rem); }
.page-hero .lead { color: var(--on-steel-muted); max-width: 660px; }
.breadcrumb { font-family: var(--font-mono); font-size: 0.74rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--on-steel-muted); display: flex; gap: 8px; align-items: center; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { opacity: 0.5; }

/* ---------- CTA band ---------- */
.cta-band { background: var(--bg-steel); color: #fff; position: relative; overflow: hidden; }
.cta-band .accent-edge { position: absolute; left: 0; top: 0; bottom: 0; width: 6px; background: var(--accent); }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding: clamp(48px,6vw,72px) 0; position: relative; z-index: 2; }
.cta-inner h2 { color: #fff; max-width: 620px; }
.cta-inner .cta-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band::after {
  content: ""; position: absolute; inset: 0;
  background-image: linear-gradient(rgba(255,255,255,0.04) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 40px 40px; opacity: 0.7;
}

/* ====================================================
   NAVBAR
   ==================================================== */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  background: color-mix(in srgb, var(--bg) 86%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  border-bottom: 1px solid var(--border);
  transition: background .3s, box-shadow .3s, border-color .3s;
}
.nav.scrolled { box-shadow: var(--shadow-sm); background: color-mix(in srgb, var(--bg) 95%, transparent); }
.nav-inner { max-width: var(--maxw); margin: 0 auto; height: 100%; padding: 0 28px; display: flex; align-items: center; gap: 24px; }

.brand { display: flex; align-items: center; gap: 13px; flex-shrink: 0; }
.brand .logo { width: 46px; height: 40px; object-fit: contain; }
html[data-theme="dark"] .brand .logo { filter: brightness(1.2) saturate(1.05); }
.brand .bt { display: flex; flex-direction: column; line-height: 1; }
.brand .bt .bn { font-family: var(--font-serif); font-weight: 700; font-size: 1.46rem; letter-spacing: 0.06em; color: var(--primary); text-transform: uppercase; }
html[data-theme="dark"] .brand .bt .bn { color: var(--primary); }
.brand .bt .bs { font-family: var(--font-serif); font-weight: 500; font-size: 0.7rem; letter-spacing: 0.46em; color: var(--text-muted); text-transform: uppercase; margin-top: 4px; padding-left: 2px; }

.nav-menu { display: flex; align-items: center; gap: 4px; margin-left: 8px; }
.nav-item { position: relative; }
.nav-link {
  display: inline-flex; align-items: center; gap: 5px;
  font-family: var(--font-head); font-weight: 500; text-transform: uppercase;
  letter-spacing: 0.04em; font-size: 0.92rem;
  padding: 10px 14px; border-radius: var(--radius); color: var(--text-soft);
  transition: color .2s, background .2s;
  white-space: nowrap;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active { color: var(--primary); }
html[data-theme="dark"] .nav-link.active { color: var(--accent); }
.nav-link .caret { width: 12px; height: 12px; transition: transform .25s; }
.nav-item.open .nav-link .caret { transform: rotate(180deg); }

.dropdown {
  position: absolute; top: calc(100% + 10px); left: 0;
  min-width: 280px; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg); padding: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .22s var(--ease), transform .22s var(--ease), visibility .22s;
}
.nav-item.open .dropdown, .nav-item:hover .dropdown { opacity: 1; visibility: visible; transform: translateY(0); }
.dropdown::before { content: ""; position: absolute; top: -10px; left: 0; right: 0; height: 10px; }

/* mega menü (Ürünler) */
.dropdown.mega { min-width: 600px; padding: 0; }
.mega-head { display: flex; align-items: center; justify-content: space-between; padding: 14px 18px 12px; border-bottom: 1px solid var(--border); }
.mega-title { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--text-muted); }
.mega-all { font-family: var(--font-head); text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.78rem; font-weight: 500; color: var(--accent); }
.mega-all:hover { color: var(--accent-deep); }
.mega-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2px; padding: 8px; }
.mega-link .ddt .t { line-height: 1.25; }
.dd-link { display: flex; gap: 12px; align-items: flex-start; padding: 12px 14px; border-radius: var(--radius); transition: background .2s; }
.dd-link:hover { background: var(--bg-alt); }
.dd-link .ddi { width: 34px; height: 34px; border-radius: 6px; background: color-mix(in srgb, var(--accent) 13%, transparent); color: var(--accent); display: grid; place-items: center; flex-shrink: 0; }
.dd-link .ddi svg { width: 18px; height: 18px; }
.dd-link .ddt { display: flex; flex-direction: column; gap: 2px; }
.dd-link .ddt .t { font-family: var(--font-head); font-weight: 500; text-transform: uppercase; letter-spacing: 0.03em; font-size: 0.92rem; color: var(--primary); line-height: 1.22; }
html[data-theme="dark"] .dd-link .ddt .t { color: var(--text); }
.dd-link .ddt .d { font-size: 0.78rem; color: var(--text-muted); line-height: 1.4; }

.nav-right { margin-left: auto; display: flex; align-items: center; gap: 10px; }
.icon-btn {
  width: 40px; height: 40px; border-radius: var(--radius);
  display: grid; place-items: center; color: var(--text-soft);
  border: 1px solid var(--border); background: var(--surface);
  transition: color .2s, border-color .2s, background .2s, transform .2s;
}
.icon-btn:hover { color: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.icon-btn svg { width: 19px; height: 19px; }
.icon-btn.wa:hover { color: #25D366; border-color: #25D366; }

.ctrl-group { display: flex; align-items: center; gap: 6px; padding-left: 6px; }
.lang-toggle {
  display: inline-flex; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden;
  background: var(--surface);
}
.lang-toggle button {
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 500; letter-spacing: 0.06em;
  padding: 9px 11px; color: var(--text-muted); transition: background .2s, color .2s;
}
.lang-toggle button.on { background: var(--accent); color: #fff; }
.theme-toggle { position: relative; overflow: hidden; }
.theme-toggle .sun, .theme-toggle .moon { transition: transform .4s var(--ease), opacity .3s; position: absolute; }
html[data-theme="light"] .theme-toggle .moon { transform: translateY(140%); opacity: 0; }
html[data-theme="dark"]  .theme-toggle .sun  { transform: translateY(-140%); opacity: 0; }

.nav-cat-label { display: none; }
.nav-katalog { display: inline-flex; align-items: center; padding: 9px 16px; border: 1.5px solid var(--border); border-radius: 6px; font-size: .85rem; font-weight: 600; color: var(--text); text-decoration: none; white-space: nowrap; line-height: 1; }
.hamburger { display: none; width: 42px; height: 42px; border-radius: var(--radius); border: 1px solid var(--border); background: var(--surface); }
.hamburger span { display: block; width: 18px; height: 2px; background: var(--text); margin: 3px auto; transition: transform .3s, opacity .3s; }
.nav.menu-open .hamburger span:nth-child(1) { transform: translateY(5px) rotate(45deg); }
.nav.menu-open .hamburger span:nth-child(2) { opacity: 0; }
.nav.menu-open .hamburger span:nth-child(3) { transform: translateY(-5px) rotate(-45deg); }

/* ====================================================
   FOOTER
   ==================================================== */
.footer { background: var(--primary-deep); color: var(--on-steel); padding: clamp(56px,7vw,84px) 0 0; position: relative; }
html[data-theme="light"] .footer { background: #0A302E; }
.footer::before { content: ""; position: absolute; top: 0; left: 0; right: 0; height: 4px; background: linear-gradient(90deg, var(--accent), transparent 50%); }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; padding-bottom: 48px; }
.footer .brand .bt .bn { color: #fff; }
.footer .brand .bt .bs { color: var(--on-steel-muted); }
.footer-col h4 { color: #fff; font-size: 0.92rem; letter-spacing: 0.1em; margin-bottom: 18px; font-family: var(--font-mono); font-weight: 500; }
.footer-col ul { display: flex; flex-direction: column; gap: 11px; }
.footer-col a, .footer-col .fc-text { color: var(--on-steel-muted); font-size: 0.92rem; transition: color .2s; }
.footer-col a:hover { color: var(--accent); }
.footer-about p { color: var(--on-steel-muted); font-size: 0.92rem; margin: 18px 0; max-width: 320px; }
.footer-contact-row { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 14px; color: var(--on-steel-muted); font-size: 0.92rem; }
.footer-contact-row svg { width: 18px; height: 18px; color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.footer-contact-row a:hover { color: #fff; }
/* Bolum arka plan fotografi — KOYU FOTO BANT.
   Foto sagda net gorunur, sol (metin tarafi) koyu kalir; metin okunur.
   --bgimg inline verilir. Iki temada da koyu bant + acik metin. */
.bg-photo {
  position: relative;
  background-color: #051A1B;              /* dark steel taban */
  color: var(--on-steel);
  /* metin renklerini banda gore acik tona sabitle (inline var() de dahil) */
  --text: #E9F4F2;
  --text-soft: #CFE4E1;
  --text-muted: #A6C4C0;
}
.bg-photo > * { position: relative; z-index: 1; }
.bg-photo::after {
  content: ""; position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background:
    linear-gradient(90deg,
      rgba(5,26,27,.94) 0%, rgba(5,26,27,.88) 34%,
      rgba(5,26,27,.60) 66%, rgba(5,26,27,.42) 100%),
    var(--bgimg) center right / cover no-repeat;
}
.bg-photo .kicker { color: var(--accent); }
.bg-photo h1, .bg-photo h2, .bg-photo h3 { color: #fff; text-shadow: 0 1px 4px rgba(0,0,0,.5); }
.bg-photo .lead, .bg-photo p { color: var(--on-steel-muted); text-shadow: 0 1px 3px rgba(0,0,0,.45); }
/* kartlar foto uzerinde okunur kalsin (index: .hookcard) */
.bg-photo .hookcard, .bg-photo .card {
  background: rgba(5,26,27,.74); -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
}
@media (max-width: 640px) {
  .bg-photo::after {
    background:
      linear-gradient(90deg, rgba(5,26,27,.92) 0%, rgba(5,26,27,.78) 100%),
      var(--bgimg) center / cover no-repeat;
  }
}

/* JS kapaliyken gorunen footer yedegi */
.ns-footer { max-width: var(--maxw); margin: 0 auto; padding: 48px 24px; border-top: 1px solid var(--border); color: var(--text-soft); font-size: 0.92rem; line-height: 1.7; }
.ns-footer h2 { font-family: var(--font-head); color: var(--primary); font-size: 1.3rem; margin-bottom: 12px; }
.ns-footer p { margin-bottom: 10px; }
.ns-footer a { color: var(--primary); text-decoration: underline; }

/* Sosyal medya çipleri — iletisim.html */
.social-chips { display: flex; flex-wrap: wrap; gap: 10px; }
.social-chip { display: inline-flex; align-items: center; gap: 9px; padding: 10px 16px 10px 13px; border: 1px solid var(--border); border-radius: 999px; color: var(--text); font-size: 0.92rem; line-height: 1; transition: color .2s, border-color .2s, background .2s; }
.social-chip svg { width: 18px; height: 18px; color: var(--primary); flex-shrink: 0; transition: color .2s; }
.social-chip:hover { color: var(--primary); border-color: var(--primary); background: var(--bg-alt); }
.social-chip:hover svg { color: var(--accent); }
.social-chip:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

/* Kurucu künyesi — hakkimizda.html */
.founder-facts { border: 1px solid var(--border); border-radius: 12px; padding: 6px 22px; background: var(--surface); }
.ff-row { display: flex; justify-content: space-between; align-items: baseline; gap: 20px; padding: 14px 0; border-bottom: 1px solid var(--border); }
.ff-row:last-child { border-bottom: 0; }
.ff-k { font-family: var(--font-mono); font-size: 0.78rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text-soft); }
.ff-v { font-family: var(--font-head); font-size: 1.02rem; color: var(--primary); text-align: right; }

/* Sosyal medya ikonlari — EK-3, 2026-08-25 */
.footer-social { display: flex; gap: 10px; margin-top: 22px; flex-wrap: wrap; }
.footer-social a { display: inline-flex; align-items: center; justify-content: center; width: 38px; height: 38px; border: 1px solid rgba(255,255,255,0.16); border-radius: 9px; color: var(--on-steel-muted); transition: color .2s, border-color .2s, background .2s; }
.footer-social a:hover { color: var(--accent); border-color: var(--accent); background: rgba(255,255,255,0.05); }
.footer-social a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.footer-social svg { width: 19px; height: 19px; }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 22px 0; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.footer-bottom p { color: var(--on-steel-muted); font-size: 0.82rem; }
.footer-bottom .fb-links { display: flex; gap: 20px; }
.footer-bottom .fb-links a { color: var(--on-steel-muted); font-size: 0.82rem; }
.footer-bottom .fb-links a:hover { color: var(--accent); }

/* ====================================================
   FORM
   ==================================================== */
.form-card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: clamp(28px,4vw,44px); box-shadow: var(--shadow-md); }
.field { margin-bottom: 22px; }
.field label { display: block; font-family: var(--font-head); text-transform: uppercase; letter-spacing: 0.04em; font-size: 0.85rem; font-weight: 500; color: var(--text-soft); margin-bottom: 8px; }
.field label .req { color: var(--accent); }
.field input, .field select, .field textarea {
  width: 100%; padding: 14px 16px; border: 1.5px solid var(--border-strong); border-radius: var(--radius);
  background: var(--bg); color: var(--text); transition: border-color .2s, box-shadow .2s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 22%, transparent); }
.field.invalid input, .field.invalid select, .field.invalid textarea { border-color: #d64545; box-shadow: 0 0 0 3px rgba(214,69,69,0.12); }
.field .err { color: #d64545; font-size: 0.8rem; margin-top: 6px; display: none; font-family: var(--font-mono); }
.field.invalid .err { display: block; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.form-success { display: none; text-align: center; padding: 30px 10px; }
.form-success.show { display: block; animation: pop .5s var(--ease); }
.form-success .sc-ic { width: 64px; height: 64px; border-radius: 50%; background: #25D366; color: #fff; display: grid; place-items: center; margin: 0 auto 18px; }
.form-success .sc-ic svg { width: 32px; height: 32px; }

/* contact info card */
.info-card { display: flex; flex-direction: column; gap: 6px; }
.info-row { display: flex; gap: 16px; align-items: flex-start; padding: 20px 0; border-bottom: 1px solid var(--border); }
.info-row:last-child { border-bottom: none; }
.info-row .ic { width: 46px; height: 46px; border-radius: var(--radius); background: color-mix(in srgb, var(--accent) 13%, transparent); color: var(--accent); display: grid; place-items: center; flex-shrink: 0; }
.info-row .ic svg { width: 22px; height: 22px; }
.info-row .it .l { font-family: var(--font-mono); font-size: 0.7rem; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-muted); margin-bottom: 4px; }
.info-row .it .v { font-family: var(--font-head); font-size: 1.2rem; text-transform: uppercase; letter-spacing: 0.02em; color: var(--primary); }
.info-row .it .v[href^="mailto"] { text-transform: none; letter-spacing: 0; font-size: 1rem; }
html[data-theme="dark"] .info-row .it .v { color: var(--text); }
.info-row .it .v.sm { font-size: 1rem; }

/* ====================================================
   ANIMATIONS
   ==================================================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.from-left  { transform: translateX(-44px); }
.reveal.from-right { transform: translateX( 44px); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
.reveal.d5 { transition-delay: .40s; }

@keyframes pop { 0% { transform: scale(.85); opacity: 0; } 100% { transform: scale(1); opacity: 1; } }
@keyframes heroUp { from { opacity: 0; transform: translateY(34px); } to { opacity: 1; transform: none; } }
body.loaded .hero-inner > * { animation: heroUp .9s var(--ease) backwards; }
body.loaded .hero-inner > *:nth-child(1) { animation-delay: .05s; }
body.loaded .hero-inner > *:nth-child(2) { animation-delay: .15s; }
body.loaded .hero-inner > *:nth-child(3) { animation-delay: .25s; }
body.loaded .hero-inner > *:nth-child(4) { animation-delay: .35s; }
body.loaded .hero-inner > *:nth-child(5) { animation-delay: .45s; }

@keyframes drawBar { from { transform: scaleX(0); } to { transform: scaleX(1); } }
.hero .accent-bar, .page-hero .accent-bar { transform-origin: left; animation: drawBar 1s var(--ease) .2s backwards; }

/* page fade */
.page-fade { animation: pageFade .5s var(--ease); }
@keyframes pageFade { from { opacity: 0; } to { opacity: 1; } }


/* ====================================================
   RESPONSIVE
   ==================================================== */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
  .steps { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 860px) {
  :root { --nav-h: 66px; }
  .nav-menu { display: none; }
  .nav-cat-label { display: block; }
  .hamburger { display: block; }
  .nav-right .cat-hide { display: none; }
  .ctrl-group { display: none; }

  /* mobile menu panel */
  .nav-menu.mobile {
    display: flex; position: fixed; top: var(--nav-h); left: 0; right: 0;
    height: calc(100svh - var(--nav-h));
    flex-direction: column; align-items: stretch; gap: 0; margin: 0;
    background: var(--bg); padding: 18px 24px 40px; overflow-y: auto;
    transform: translateX(100%); transition: transform .35s var(--ease);
    border-top: 1px solid var(--border);
  }
  .nav.menu-open .nav-menu.mobile { transform: translateX(0); }
  .nav-menu.mobile .nav-item { width: 100%; border-bottom: 1px solid var(--border); }
  .nav-menu.mobile .nav-link { width: 100%; justify-content: space-between; padding: 16px 4px; font-size: 1.05rem; }
  .nav-menu.mobile .dropdown {
    position: static; opacity: 1; visibility: visible; transform: none; box-shadow: none;
    border: none; min-width: 0; padding: 0 0 8px; max-height: 0; overflow: hidden;
    transition: max-height .3s var(--ease);
  }
  .nav-menu.mobile .nav-item.open .dropdown { max-height: 800px; }
  .nav-menu.mobile .dropdown.mega { min-width: 0; padding: 0; }
  .nav-menu.mobile .dropdown.mega .mega-head { display: none; }
  .nav-menu.mobile .dropdown.mega .mega-grid { grid-template-columns: 1fr; gap: 0; padding: 0; }
  .nav-menu.mobile .mobile-ctrl {
    display: flex; align-items: center; justify-content: space-between;
    padding: 18px 4px 14px; border-bottom: 1px solid var(--border);
  }
  .nav-menu.mobile .mobile-actions { display: flex; gap: 12px; margin-top: 22px; }
  .nav-menu.mobile .mobile-actions .btn { flex: 1; }
  .nav-menu.mobile .mobile-katalog { display: block; width: 100%; text-align: center; margin-top: 10px; box-sizing: border-box; }
}
@media (min-width: 861px) {
  .nav-menu.mobile .mobile-actions { display: none; }
  .mobile-ctrl { display: none; }
  .mobile-katalog { display: none; }
}

@media (max-width: 760px) {
  .cols-3, .cols-4, .cols-2 { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-inner { flex-direction: column; align-items: flex-start; }
  .split-2 { grid-template-columns: 1fr !important; }
}

/* ---------- Utility ---------- */
.split-2 { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px,5vw,64px); align-items: center; }
.split-2.top { align-items: start; }
.mt-s { margin-top: 16px; } .mt-m { margin-top: 28px; } .mt-l { margin-top: 44px; }
.mb-m { margin-bottom: 28px; }
.stack { display: flex; flex-direction: column; gap: 16px; }
.row-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.center-btns { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }
.eyebrow-num { font-family: var(--font-mono); color: var(--accent); font-size: 0.8rem; letter-spacing: 0.1em; }
.divider { height: 1px; background: var(--border); margin: 0; border: none; }

/* engineering note callout */
.note {
  display: flex; gap: 16px; align-items: flex-start;
  background: var(--surface-2); border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius); padding: 22px 26px;
}
.note .ni { color: var(--accent); flex-shrink: 0; margin-top: 2px; }
.note .ni svg { width: 24px; height: 24px; }
.note p { color: var(--text-soft); font-size: 0.97rem; font-style: italic; margin: 0; }
.section.steel .note { background: rgba(255,255,255,0.04); border-color: rgba(255,255,255,0.12); }
.section.steel .note p { color: var(--on-steel-muted); }

/* usage tags row */
.usage { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.usage span { font-size: 0.9rem; color: var(--text-soft); background: var(--surface); border: 1px solid var(--border); padding: 7px 14px; border-radius: var(--radius); }

/* ====================================================
   MOBILE-NAV-360 FIX — geri almak için bu bloğu sil
   ==================================================== */
@media (max-width: 390px) {
  .nav-inner { gap: 10px; }
  .lang-toggle button { padding: 9px 8px; }
}

/* ====================================================
   WHATSAPP FLOATING BUTTON
   ==================================================== */
.wa-float {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 9999;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 12px;
}

.wa-fab {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  color: #fff;
  flex-shrink: 0;
  animation: pulse-wa 2.2s ease-out infinite;
}
@keyframes pulse-wa {
  0%   { box-shadow: 0 4px 18px rgba(37,211,102,.45), 0 0 0 0   rgba(37,211,102,.55); }
  70%  { box-shadow: 0 4px 18px rgba(37,211,102,.45), 0 0 0 18px rgba(37,211,102,0); }
  100% { box-shadow: 0 4px 18px rgba(37,211,102,.45), 0 0 0 0   rgba(37,211,102,0); }
}
.wa-fab:hover { transform: scale(1.08); }
.wa-fab svg { width: 30px; height: 30px; }

.wa-bubble {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 18px 20px 16px;
  max-width: 260px;
  opacity: 0;
  transform: translateY(10px) scale(.97);
  pointer-events: none;
  transition: opacity .3s var(--ease), transform .3s var(--ease);
}
.wa-bubble.wa-bubble-show {
  opacity: 1;
  transform: translateY(0) scale(1);
  pointer-events: auto;
}
.wa-bubble p {
  margin: 0 0 14px;
  font-size: .95rem;
  color: var(--text-soft);
  line-height: 1.5;
}
.wa-bubble-close {
  float: right;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  color: var(--text-muted);
  margin: -4px -6px 6px 8px;
  padding: 2px 6px;
  border-radius: 4px;
  transition: color .15s;
}
.wa-bubble-close:hover { color: var(--text); }

html[data-theme="dark"] .wa-bubble {
  background: var(--surface);
  border-color: var(--border);
}

@media (max-width: 600px) {
  .wa-float { bottom: 18px; right: 16px; }
  .wa-fab { width: 52px; height: 52px; }
  .wa-fab svg { width: 26px; height: 26px; }
  .wa-bubble { max-width: 220px; }
}


/* =====================================================
   TARGON — yeni site eklemeleri (2026-08-17)
   ===================================================== */

/* Fiyatlar menü öğesi — şartname §2.1: kancanın kendisi, vurgulu */
/* Vurgulu ama "aktif sayfa" ile karismayan bir bicim: cerceveli rozet.
   .active sadece renk degistirir; bu ise dolu zemin alir.               */
.nav-link.nav-price {
  position: relative;
  font-weight: 600;
  color: var(--accent);
  border: 1.5px solid color-mix(in srgb, var(--accent) 42%, transparent);
  border-radius: var(--radius);
  padding: 8px 15px;
  margin: 0 3px;
  transition: background .2s var(--ease), color .2s, border-color .2s;
}
.nav-link.nav-price:hover {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border-color: var(--accent);
  color: var(--accent);
}
.nav-link.nav-price.active {
  background: var(--accent); border-color: var(--accent); color: #04211f;
}

/* mega menü alt şeridi */
.mega-foot { border-top: 1px solid var(--border); padding: 12px 18px; }
.mega-foot a {
  display: flex; align-items: center; gap: 6px; color: var(--accent);
  font-weight: 600; font-size: .82rem; text-decoration: none;
}

/* footer hizmet bölgesi */
.footer-area {
  margin-top: 16px; padding-top: 14px; border-top: 1px solid rgba(255,255,255,.1);
  color: var(--on-steel-muted); font-family: var(--font-mono);
  font-size: .72rem; letter-spacing: .08em; text-transform: uppercase;
}

/* ---------- Mobil alt bar (şartname §2.3) ---------- */
.mbar { display: none; }
@media (max-width: 860px) {
  .mbar {
    display: grid; grid-template-columns: repeat(3, 1fr);
    position: fixed; left: 0; right: 0; bottom: 0; z-index: 120;
    background: color-mix(in srgb, var(--bg) 94%, transparent);
    backdrop-filter: blur(14px);
    border-top: 1px solid var(--border);
    padding-bottom: env(safe-area-inset-bottom, 0);
  }
  .mbar-i {
    display: flex; flex-direction: column; align-items: center; justify-content: center;
    gap: 4px; padding: 10px 6px 9px; min-height: 56px;
    color: var(--text-soft); text-decoration: none;
    font-family: var(--font-head); text-transform: uppercase;
    letter-spacing: .04em; font-size: .68rem;
  }
  .mbar-i svg { width: 20px; height: 20px; }
  .mbar-i.wa { color: #1da851; }
  .mbar-i:active { background: var(--bg-alt); }
  .mbar-i + .mbar-i { border-left: 1px solid var(--border); }

  /* alt bar içeriği kapatmasın */
  body { padding-bottom: 62px; }
  .footer { padding-bottom: 12px; }
  /* yüzen WhatsApp barın üstüne çıksın */
  .wa-float { bottom: 74px; }
}

/* ---------- KVKK onay kutusu ---------- */
.field.check { display: flex; align-items: flex-start; gap: 10px; margin-bottom: 20px; }
.field.check input[type="checkbox"] {
  width: 18px; height: 18px; margin-top: 3px; flex-shrink: 0;
  accent-color: var(--accent); cursor: pointer;
}
.field.check label {
  font-family: var(--font-body); text-transform: none; letter-spacing: 0;
  font-size: .86rem; font-weight: 400; color: var(--text-soft); margin: 0; cursor: pointer;
}
.field.check label a { color: var(--accent); text-decoration: underline; }
.field.check.invalid label { color: #d64545; }

/* ---------- Temsili görsel etiketi (şartname §0 yasak 10) ---------- */
.img-note {
  display: inline-block; margin-top: 8px;
  font-family: var(--font-mono); font-size: .64rem; letter-spacing: .1em;
  text-transform: uppercase; color: var(--text-muted);
}

/* =====================================================
   DİZİLİM SEKANSI — scroll'a bağlı, sabit kadraj
   Kullanım: index.html (Blok modülerlik) + moduler.html
   ===================================================== */
.seq-track { position: relative; }
.seq-stage {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  background: var(--bg-steel);
  display: grid; grid-template-rows: 1fr auto; align-items: center;
}
.seq-stage::before {
  content: ""; position: absolute; inset: 0; z-index: 0;
  background-image:
    linear-gradient(rgba(255,255,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.05) 1px, transparent 1px);
  background-size: 54px 54px;
  -webkit-mask-image: radial-gradient(ellipse 72% 72% at 50% 46%, #000 20%, transparent 78%);
          mask-image: radial-gradient(ellipse 72% 72% at 50% 46%, #000 20%, transparent 78%);
}
.seq-figwrap { position: relative; z-index: 2; display: flex; align-items: center; justify-content: center; padding: 20px 24px 4px; min-height: 0; }
.seq-figure { position: relative; width: min(900px, 92vw); aspect-ratio: 669/373; max-height: 100%; }
.seq-layer {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: contain; object-position: center center;
  opacity: 0; will-change: opacity;
}
.seq-layer.first { opacity: 1; }

.seq-bottom { position: relative; z-index: 3; padding: 0 24px 34px; }
.seq-bottom .in { max-width: 1100px; margin: 0 auto; }
.seq-capbox { position: relative; height: 74px; margin-bottom: 14px; }
.seq-cap {
  position: absolute; left: 0; right: 0; top: 0; opacity: 0;
  text-align: center; transition: opacity .3s ease;
}
.seq-cap.on { opacity: 1; }
.seq-cap .n { font-family: var(--font-head); font-size: 1.9rem; color: #fff; line-height: 1; }
.seq-cap .n em {
  font-style: normal; color: var(--accent); font-size: .42em;
  letter-spacing: .1em; margin-left: 9px; text-transform: uppercase;
}
.seq-cap p { color: var(--on-steel-muted); font-size: .93rem; margin-top: 8px; }

.seq-dots { display: flex; justify-content: center; gap: 9px; margin-bottom: 14px; }
.seq-dots i {
  width: 7px; height: 7px; border-radius: 50%; background: rgba(255,255,255,.2);
  transition: background .25s, transform .25s;
}
.seq-dots i.on { background: var(--accent); transform: scale(1.5); }
.seq-rail { height: 2px; background: rgba(255,255,255,.14); position: relative; max-width: 480px; margin: 0 auto; }
.seq-rail b { position: absolute; inset: 0 auto 0 0; width: 0%; background: var(--accent); display: block; }
.seq-hint {
  text-align: center; margin-top: 12px; font-family: var(--font-mono);
  font-size: .62rem; letter-spacing: .16em; color: var(--on-steel-muted); text-transform: uppercase;
}
.seq-cta { position: relative; z-index: 4; text-align: center; margin-top: 16px; }

@media (max-width: 860px) {
  .seq-figure { width: 94vw; }
  .seq-capbox { height: 92px; }
  .seq-cap .n { font-size: 1.45rem; }
  .seq-cap p { font-size: .85rem; }
  .seq-stage { height: 88vh; }
}

/* ---------- Hero rozet şeridi ---------- */
.hero-badges { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 34px; }
.hero-badges span {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-mono); font-size: .7rem; letter-spacing: .1em; text-transform: uppercase;
  color: var(--on-steel); border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.05); padding: 8px 13px; border-radius: 3px;
}
.hero-badges svg { width: 15px; height: 15px; color: var(--accent); flex-shrink: 0; }

/* ---------- SSS akordiyonu ---------- */
.faq { border-top: 1px solid var(--border); }
.faq details { border-bottom: 1px solid var(--border); }
.faq summary {
  list-style: none; cursor: pointer; padding: 20px 40px 20px 0; position: relative;
  font-family: var(--font-head); text-transform: uppercase; letter-spacing: .02em;
  font-size: clamp(1rem, 1.5vw, 1.12rem); color: var(--primary);
}
html[data-theme="dark"] .faq summary { color: var(--text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: ""; position: absolute; right: 6px; top: 50%; width: 11px; height: 11px;
  border-right: 2px solid var(--accent); border-bottom: 2px solid var(--accent);
  transform: translateY(-70%) rotate(45deg); transition: transform .25s var(--ease);
}
.faq details[open] summary::after { transform: translateY(-30%) rotate(-135deg); }
.faq summary:hover { color: var(--accent); }
.faq .fa { padding: 0 40px 22px 0; color: var(--text-soft); font-size: .96rem; }

/* ---------- Bilgi kartı (kanca + buton) ---------- */
.hookcard {
  display: flex; flex-direction: column; gap: 12px;
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 26px;
  transition: border-color .3s, transform .3s var(--ease), box-shadow .3s;
}
.hookcard:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow-md); }
.hookcard .hi {
  width: 44px; height: 44px; border-radius: var(--radius);
  background: color-mix(in srgb, var(--accent) 13%, transparent);
  color: var(--accent); display: grid; place-items: center;
}
.hookcard .hi svg { width: 22px; height: 22px; }
.hookcard h3 { font-size: 1.08rem; color: var(--primary); }
html[data-theme="dark"] .hookcard h3 { color: var(--text); }
.hookcard p { color: var(--text-soft); font-size: .93rem; flex: 1; }
.hookcard .link-arrow { margin-top: 4px; }

/* =====================================================
   VİDEOLU HERO — scroll konumu videonun karesini sürer
   ===================================================== */
.vhero-track { position: relative; }
.vhero {
  position: sticky; top: 0; height: 100vh; overflow: hidden;
  background: var(--bg-steel); display: flex; align-items: center;
}
.vhero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0; transition: opacity .7s var(--ease);
}
.vhero.ready .vhero-video { opacity: 1; }
.vhero-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(90deg, rgba(4,26,27,.92) 0%, rgba(4,26,27,.72) 42%, rgba(4,26,27,.28) 72%, rgba(4,26,27,.5) 100%),
    linear-gradient(180deg, rgba(4,26,27,.55) 0%, transparent 30%, transparent 62%, rgba(4,26,27,.75) 100%);
}
.vhero .accent-bar {
  position: absolute; top: 0; left: 0; height: 6px; width: 100%;
  background: linear-gradient(90deg, var(--accent), transparent 60%); z-index: 3;
}
.vhero-content {
  position: relative; z-index: 4; width: 100%;
  padding-top: var(--nav-h);
}
.vhero-inner { max-width: 720px; }
.vhero-content h1 { color: #fff; margin-bottom: 24px; line-height: 1.05; }
.vhero-content h1 .em { color: var(--accent); }
.vhero-content .lead { color: var(--on-steel-muted); max-width: 560px; margin-bottom: 32px; }
.vhero-content .kicker { margin-bottom: 20px; }

/* ilerleme + ipucu */
.vhero-foot {
  position: absolute; left: 0; right: 0; bottom: 26px; z-index: 4;
  pointer-events: none;
}
.vhero-foot .in { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.vhero-rail { height: 2px; background: rgba(255,255,255,.16); position: relative; max-width: 420px; }
.vhero-rail b { position: absolute; inset: 0 auto 0 0; width: 0%; background: var(--accent); display: block; }
.vhero-hint {
  margin-top: 12px; font-family: var(--font-mono); font-size: .64rem;
  letter-spacing: .16em; color: var(--on-steel-muted); text-transform: uppercase;
}

/* video yüklenene kadar / hiç yüklenmezse */
.vhero::after {
  content: ""; position: absolute; inset: 0; z-index: 1;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(ellipse 80% 90% at 70% 30%, #000 30%, transparent 85%);
          mask-image: radial-gradient(ellipse 80% 90% at 70% 30%, #000 30%, transparent 85%);
  transition: opacity .7s var(--ease);
}
.vhero.ready::after { opacity: .35; }

@media (max-width: 860px) {
  .vhero-veil {
    background:
      linear-gradient(180deg, rgba(4,26,27,.8) 0%, rgba(4,26,27,.55) 35%, rgba(4,26,27,.85) 100%);
  }
  .vhero-content .lead { max-width: none; }
  .vhero-foot { bottom: 74px; }
}
/* NOT: burada prefers-reduced-motion ile sticky'yi iptal ETMIYORUZ.
   Bu bolumdeki hareket dekorasyon degil, iceriğin kendisi - kaydirdikca
   yapinin kuruldugunu gosteriyor. Sistem ayari acikken JS tarafinda
   yumusatma kapatiliyor (dogrudan esleme), sekans korunuyor.          */

/* videolu hero — 100vh içine sığması için ölçek */
.vhero-content h1 { font-size: clamp(2.1rem, 4.8vw, 4.1rem); }
.vhero-content .lead { font-size: clamp(1rem, 1.4vw, 1.2rem); margin-bottom: 28px; }
.vhero-content .hero-badges { margin-top: 26px; }
@media (max-height: 780px) {
  .vhero-content h1 { font-size: clamp(1.9rem, 3.8vw, 3rem); margin-bottom: 16px; }
  .vhero-content .lead { margin-bottom: 20px; }
  .vhero-content .hero-badges { margin-top: 18px; }
  .vhero-content .hero-badges span { padding: 6px 10px; font-size: .64rem; }
}

/* poster, video hazır olana kadar görünsün */
.vhero-video { background: var(--bg-steel) center/cover no-repeat; }

/* ---------- Görsel yer tutucu (görseller sonra eklenecek) ---------- */
.imgph {
  position: relative; width: 100%; aspect-ratio: 4/3;
  border: 1px dashed var(--border-strong); border-radius: 8px;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--primary) 5%, transparent), transparent 60%),
    var(--bg-alt);
  display: grid; place-items: center; gap: 10px; align-content: center;
  color: var(--text-muted); text-align: center; padding: 20px;
}
.imgph svg { width: 34px; height: 34px; opacity: .5; }
.imgph span {
  font-family: var(--font-mono); font-size: .64rem;
  letter-spacing: .12em; text-transform: uppercase;
}
.imgph.wide { aspect-ratio: 16/9; }
.imgph.tall { aspect-ratio: 3/4; }

/* ---------- Ürün sayfası satır düzeni (eski sitedeki format) ----------
   Eskiden her sayfa kendi prefixini (knt-, prf-, cy-) tekrar ediyordu.
   Tek sınıfa indirildi: eco / elite / çelik ev / modüler aynısını kullanır. */
.prow-wrap { max-width: 960px; display: flex; flex-direction: column; gap: 56px; }
.prow { display: grid; gap: 48px; align-items: center; }
.prow.txt-img { grid-template-columns: 3fr 2fr; }
.prow.img-txt { grid-template-columns: 2fr 3fr; }
.prow img { width: 100%; border-radius: 8px; display: block; }
.prow p { font-size: 1.05rem; line-height: 1.85; margin: 0; }
.prow h3 { font-size: 1.45rem; margin: 12px 0 16px; }
.prow .accent { border-left: 3px solid var(--accent); padding-left: 28px; }
/* başlık, yandaki görselin etiketi gibi algılanmasın diye tam genişlik */
.prow.head-wide { grid-template-rows: auto auto; align-items: start; gap: 24px 48px; }
.prow.head-wide > .hw {
  grid-column: 1 / -1; border-bottom: 1px solid var(--border); padding-bottom: 20px;
}
.prow.head-wide > .hw h3 { margin: 12px 0 0; }
@media (max-width: 680px) {
  .prow.txt-img, .prow.img-txt { grid-template-columns: 1fr; }
  .prow.img-txt img, .prow.img-txt .imgph { order: -1; }
}

/* =====================================================
   ÖZELLEŞTİRME UYARISI — "standart yapıdır, projeye göre değişir"
   Küçük dipnot yerine öne çıkan bir blok.
   ===================================================== */
.custom-note {
  display: flex; align-items: flex-start; gap: 18px;
  background: color-mix(in srgb, var(--accent) 8%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--accent) 32%, transparent);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  padding: 24px 28px; margin-top: 32px;
}
.custom-note .cn-ic {
  flex: 0 0 auto; width: 42px; height: 42px; border-radius: 50%;
  background: color-mix(in srgb, var(--accent) 16%, transparent);
  color: var(--accent); display: grid; place-items: center;
}
.custom-note .cn-ic svg { width: 21px; height: 21px; }
.custom-note strong {
  display: block; font-family: var(--font-head); font-size: 1.08rem;
  text-transform: uppercase; letter-spacing: .02em; color: var(--primary);
  margin-bottom: 7px;
}
html[data-theme="dark"] .custom-note strong { color: var(--accent); }
.custom-note p { color: var(--text-soft); font-size: .98rem; line-height: 1.7; margin: 0; }
@media (max-width: 600px) {
  .custom-note { flex-direction: column; gap: 14px; padding: 20px 22px; }
}

/* =====================================================
   SIRADAKİ ÜRÜN — ürünler birbirine sırayla bağlanır
   ECO → Elite → Çelik Ev → Modüler → ECO
   ===================================================== */
.nextprod { border-top: 1px solid var(--border); }
.nextprod .np {
  display: flex; align-items: center; justify-content: space-between; gap: 28px;
  padding: clamp(30px, 4vw, 46px) 0; text-decoration: none; color: inherit;
  flex-wrap: wrap;
}
.nextprod .np-txt { max-width: 640px; }
.nextprod .kicker { margin-bottom: 12px; }
.nextprod h2 {
  font-size: clamp(1.35rem, 2.4vw, 1.85rem); color: var(--primary);
  margin-bottom: 8px; transition: color .25s var(--ease);
}
html[data-theme="dark"] .nextprod h2 { color: var(--text); }
.nextprod p { color: var(--text-soft); font-size: .97rem; margin: 0; }
.nextprod .np-arrow {
  flex: 0 0 auto; width: 58px; height: 58px; border-radius: 50%;
  border: 1.5px solid var(--border-strong); color: var(--accent);
  display: grid; place-items: center;
  transition: background .25s var(--ease), border-color .25s, transform .25s var(--ease);
}
.nextprod .np-arrow svg { width: 24px; height: 24px; }
.nextprod .np:hover h2 { color: var(--accent); }
.nextprod .np:hover .np-arrow {
  background: var(--accent); border-color: var(--accent); color: #04211f;
  transform: translateX(6px);
}

/* =====================================================
   VİDEOLU HERO — Dünya → geçiş → çelik ev
   Scroll konumu videonun karesini sürer. Hero ekrana
   yapışır, dizi bitince sayfa normal akmaya devam eder.
   ===================================================== */
.vhero-track { position: relative; }
.vhero-track > .hero {
  position: sticky; top: 0;
  min-height: 100vh;
  display: flex; align-items: center;
  padding-top: var(--nav-h);
  padding-bottom: clamp(40px, 6vw, 80px);
}
.hero .hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; object-position: center;
  opacity: 0; transition: opacity .8s var(--ease); z-index: 0;
}
.hero.ready .hero-video { opacity: 1; }
/* Metin okunurlugu: soldan saga acilan koyu perde */
.hero .hero-veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(100deg,
      rgba(4,26,27,.94) 0%, rgba(4,26,27,.88) 32%,
      rgba(4,26,27,.60) 58%, rgba(4,26,27,.44) 80%, rgba(4,26,27,.68) 100%),
    linear-gradient(180deg, rgba(4,26,27,.55) 0%, transparent 26%, transparent 68%, rgba(4,26,27,.75) 100%);
}
.hero .accent-bar { z-index: 3; }
.hero .wrap { position: relative; z-index: 2; }

/* ilerleme cizgisi */
.hero-rail {
  position: absolute; left: 0; right: 0; bottom: 26px; z-index: 3; pointer-events: none;
}
.hero-rail .in { max-width: var(--maxw); margin: 0 auto; padding: 0 28px; }
.hero-rail .bar { height: 2px; background: rgba(255,255,255,.16); position: relative; max-width: 420px; }
.hero-rail .bar b { position: absolute; inset: 0 auto 0 0; width: 0%; background: var(--accent); display: block; }
.hero-rail .hint {
  margin-top: 11px; font-family: var(--font-mono); font-size: .63rem;
  letter-spacing: .16em; color: var(--on-steel-muted); text-transform: uppercase;
}
@media (max-width: 860px) {
  .hero-rail { bottom: 18px; }
  .vhero-track > .hero { min-height: 92vh; }
}

/* =====================================================
   ÇAPRAZ BÖLMELİ BÖLÜM ARKA PLANI
   Bölümün tamamı iki fotoğrafla kaplanır; aralarındaki
   kesim sol-alttan sağ-üste giden bir diyagonaldir.
   Bölge 1 (sol-alt) = taban fotoğraf
   Bölge 2 (sağ-üst) = üste bindirilen, kırpılmış fotoğraf
   ===================================================== */
.dsplit-bg { position: relative; overflow: hidden; }
.dsplit-bg > .bg-a,
.dsplit-bg > .bg-b {
  position: absolute; inset: 0; z-index: 0;
  background-size: cover; background-position: center;
  background-repeat: no-repeat;
}
/* Bölge 2 — diyagonalin sağında kalan alan */
.dsplit-bg > .bg-b {
  clip-path: polygon(21% 100%, 88% 0, 100% 0, 100% 100%);
}
/* Kesim çizgisi — ince accent şeridi */
.dsplit-bg > .bg-cut {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(
    to bottom right,
    transparent calc(50% - 1px),
    color-mix(in srgb, var(--accent) 70%, transparent) 50%,
    transparent calc(50% + 1px));
  clip-path: polygon(21% 100%, 88% 0, 88.6% 0, 21.6% 100%);
  background: color-mix(in srgb, var(--accent) 62%, transparent);
}
/* Karartma — metin her iki fotoğrafın üstünde de okunmalı */
.dsplit-bg > .bg-veil {
  position: absolute; inset: 0; z-index: 1;
  background:
    linear-gradient(100deg,
      rgba(4,26,27,.93) 0%, rgba(4,26,27,.89) 38%,
      rgba(4,26,27,.74) 62%, rgba(4,26,27,.62) 82%, rgba(4,26,27,.78) 100%),
    linear-gradient(180deg, rgba(4,26,27,.5) 0%, transparent 22%, transparent 74%, rgba(4,26,27,.6) 100%);
}
.dsplit-bg > .wrap { position: relative; z-index: 3; }
.dsplit-bg .img-note { color: var(--on-steel-muted); }
@media (max-width: 860px) {
  /* dar ekranda diyagonal dikleşir, fotoğraflar metni bastırmasın */
  .dsplit-bg > .bg-b { clip-path: polygon(46% 100%, 78% 0, 100% 0, 100% 100%); }
  .dsplit-bg > .bg-cut { clip-path: polygon(46% 100%, 78% 0, 78.8% 0, 46.8% 100%); }
  .dsplit-bg > .bg-veil {
    background: linear-gradient(180deg, rgba(4,26,27,.90) 0%, rgba(4,26,27,.86) 60%, rgba(4,26,27,.92) 100%);
  }
}

/* =====================================================
   ÜRÜN FOTOĞRAFLARI
   ===================================================== */
/* Kart görseli — fotoğraf kırpılmadan kutuya sığdırılır, ortalanır */
.card-visual.pfit > img {
  width: 100%; height: 100%; object-fit: contain; display: block;
  position: relative; z-index: 1;
}
/* fotoğraf varken dekoratif ızgara kapanır */
.card-visual.pfit::after { display: none; }

/* Ürün sayfası satır görseli — kendi en/boy oranıyla, kırpmasız */
.pimg {
  width: 100%; height: auto; display: block;
  border-radius: 8px; border: 1px solid var(--border);
  background: var(--bg-alt);
}

/* =====================================================
   VİDEOLU BÖLÜM ARKA PLANI (kaydırmaya bağlı)
   Video ekrana sabitlenir (sticky), içerik üstünden akar.
   Bölüm sabit kaldığı sürece videonun zaman çizgisi
   baştan sona sarılır: A karesinden C karesine.
   Bölüme ayrıca boy verilir; yoksa sekans için kaydırma
   mesafesi kalmaz ve video bir anda geçip gider.
   ===================================================== */
.vsec {
  position: relative;
  /* Sekansın yayılacağı kaydırma mesafesi garanti altına alınır:
     bölüm ekranın iki katı uzunsa video en az bir ekran boyu sarılır.
     İçerik doğal boyu bunu zaten aşıyorsa min-height devreye girmez. */
  min-height: 200vh;
  display: flex; align-items: center;
}
.vsec > .wrap { width: 100%; padding-block: clamp(60px, 8vh, 110px); }
.vsec-media { position: absolute; inset: 0; z-index: 0; }
.vsec-stick {
  position: sticky; top: 0;
  height: 100vh; height: 100svh;
  width: 100%; overflow: hidden;
}
.vsec-stick video {
  width: 100%; height: 100%; object-fit: cover; display: block;
}
.vsec-veil {
  position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(4,26,27,.74) 0%, rgba(4,26,27,.82) 45%, rgba(4,26,27,.88) 100%);
}
.vsec > .wrap { position: relative; z-index: 2; }
/* İlerleme çubuğu — sabitlenen katmanın içinde, ekranın sol kenarında */
.vsec-rail {
  position: absolute; left: max(18px, 3vw); top: 22%; bottom: 22%; width: 2px;
  z-index: 3; background: rgba(255,255,255,.16); border-radius: 2px;
}
.vsec-rail b {
  position: absolute; left: 0; top: 0; width: 100%; height: 0%;
  background: var(--accent); border-radius: 2px; display: block;
}
@media (max-width: 900px) { .vsec-rail { display: none; } }

/* Videolu bölümde fotoğraflar koyu zeminde durur */
.vsec .pimg {
  border-color: rgba(255,255,255,.18);
  background: rgba(255,255,255,.04);
  box-shadow: 0 18px 44px rgba(0,0,0,.34);
}

/* Koyu fotoğraf zeminli bölümlerde liste metni */
.section.steel .checklist li { color: var(--on-steel-muted); }

/* =====================================================
   DİZİLİM SEKANSI — ARTIK BÖLÜMÜN ARKA PLANI
   Konteyner dizilimi sahnenin sağına yerleşir ve arka
   planda kalır; metin sol tarafta üstünde akar.
   Ayrı bir "gösteri bloğu" değil, bölümün kendisidir.
   ===================================================== */
.seqsec { padding: 0; }
.seqsec .seq-stage { display: block; }

/* Dizilim: arka plan katmanı, sahnenin sağ tarafında */
.seqsec .seq-figwrap {
  position: absolute; inset: 0; z-index: 1;
  display: flex; align-items: center; justify-content: flex-end;
  padding: clamp(24px, 5vh, 70px) clamp(16px, 4vw, 60px);
}
.seqsec .seq-figure { width: min(720px, 54vw); max-height: 78%; }

/* Fotoğrafın metin tarafını karartan perde */
.seqsec .seq-veil {
  position: absolute; inset: 0; z-index: 2; pointer-events: none;
  background: linear-gradient(95deg,
    rgba(4,26,27,.94) 0%, rgba(4,26,27,.88) 34%,
    rgba(4,26,27,.42) 62%, rgba(4,26,27,.20) 100%);
}

/* İçerik: solda, dikey ortalı */
.seqsec .seq-content {
  position: relative; z-index: 3;
  height: 100%; display: flex; align-items: center;
}
.seqsec .seq-content > .wrap { width: 100%; max-width: 1180px; }
.seqsec .seq-content .kicker,
.seqsec .seq-content h2,
.seqsec .seq-content .lead,
.seqsec .seq-capbox { max-width: 560px; }
.seqsec .seq-content .lead { margin-bottom: clamp(24px, 4vh, 40px); }

/* Adım açıklamaları — sola hizalı */
.seqsec .seq-capbox { height: 96px; margin-bottom: 18px; }
.seqsec .seq-cap { text-align: left; }
.seqsec .seq-dots { justify-content: flex-start; }
.seqsec .seq-rail { margin: 0; max-width: 420px; }
.seqsec .seq-hint { text-align: left; }
.seqsec .img-note { color: var(--on-steel-muted); }

@media (max-width: 900px) {
  /* Dar ekranda dizilim tam arkaya geçer, metin üstünde durur */
  .seqsec .seq-figwrap { justify-content: center; align-items: flex-start; padding-top: 12vh; }
  .seqsec .seq-figure { width: 92vw; max-height: 40%; }
  .seqsec .seq-veil {
    background: linear-gradient(180deg,
      rgba(4,26,27,.55) 0%, rgba(4,26,27,.80) 38%, rgba(4,26,27,.95) 60%, rgba(4,26,27,.96) 100%);
  }
  .seqsec .seq-content { align-items: flex-end; padding-bottom: 5vh; }
  .seqsec .seq-capbox { height: 108px; }
}

/* =====================================================
   MALZEME TABLOSU
   Kısa alt başlık + seçenek listeleri tablo olarak.
   Dar ekranda satırlar kart gibi alt alta yığılır.
   ===================================================== */
.mtable-wrap { overflow-x: auto; -webkit-overflow-scrolling: touch; }
.mtable {
  width: 100%; border-collapse: collapse; text-align: left;
  min-width: 640px;
}
.mtable thead th {
  font-family: var(--font-mono); font-size: .66rem; letter-spacing: .14em;
  text-transform: uppercase; color: var(--text-muted); font-weight: 500;
  padding: 0 20px 12px 0; border-bottom: 1.5px solid var(--border-strong);
  white-space: nowrap;
}
.mtable tbody tr { border-bottom: 1px solid var(--border); }
.mtable tbody tr:last-child { border-bottom: 0; }
.mtable td, .mtable tbody th {
  padding: 18px 20px 18px 0; vertical-align: top; font-weight: 400;
}
.mtable td:last-child, .mtable tbody th:last-child { padding-right: 0; }
.mtable .mt-kat {
  font-family: var(--font-mono); font-size: .68rem; letter-spacing: .12em;
  text-transform: uppercase; color: var(--accent); white-space: nowrap;
}
.mtable .mt-bas { color: var(--text); font-size: .95rem; }
.mtable .mt-sec { color: var(--text-soft); font-size: .95rem; }
.mtable .mt-note {
  color: var(--text-muted); font-size: .84rem; margin-top: 8px;
  padding-left: 12px; border-left: 2px solid var(--border-strong);
}
.mtable tbody th { width: 1%; }
.mtable td:nth-child(2) { width: 26%; }

@media (max-width: 720px) {
  .mtable { min-width: 0; }
  .mtable thead { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); }
  .mtable tbody tr { display: block; padding: 20px 0; }
  .mtable td, .mtable tbody th { display: block; width: auto; padding: 0; }
  .mtable .mt-kat { display: block; margin-bottom: 6px; }
  .mtable .mt-bas { display: block; margin-bottom: 8px; font-weight: 500; }
}

/* Süreç akış şeması — çizimin zemini düz beyaz olduğundan
   koyu temada ters çevirmek yerine kendi beyaz panelinde durur. */
.surec-akis {
  margin: 0 0 clamp(40px, 6vw, 68px);
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg, 10px);
  padding: clamp(14px, 2.4vw, 28px);
}
.surec-akis img { width: 100%; height: auto; display: block; }

/* Hedefi olmayan butonlar (katalog dosyası hazır olana kadar) */
a[aria-disabled="true"] { cursor: default; }