/* ═══════════════════════════════════════════════
   TIMAY BİYOTEKNOLOJİ - Modern Web Sitesi CSS
   ═══════════════════════════════════════════════ */

:root {
  --bg:         #080c0e;
  --bg-2:       #0d1214;
  --bg-3:       #111820;
  --surface:    rgba(255,255,255,0.04);
  --surface-2:  rgba(255,255,255,0.07);
  --border:     rgba(255,255,255,0.08);
  --border-2:   rgba(0, 230, 118, 0.2);
  --green:      #00e676;
  --green-dim:  #00c853;
  --green-glow: rgba(0, 230, 118, 0.15);
  --text:       #f0f4f8;
  --text-dim:   #8899a6;
  --text-muted: #4a5568;
  --font-main:  'Inter', system-ui, sans-serif;
  --font-head:  'Space Grotesk', sans-serif;
  --radius:     12px;
  --radius-lg:  20px;
  --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --shadow:     0 8px 32px rgba(0,0,0,0.4);
  --shadow-green: 0 0 40px rgba(0, 230, 118, 0.2);
}

/* ── Light Mode Variables ── */
[data-theme="light"] {
  --bg:         #f4f8f5;
  --bg-2:       #eaf2ec;
  --bg-3:       #dceee0;
  --surface:    rgba(0,0,0,0.04);
  --surface-2:  rgba(0,0,0,0.07);
  --border:     rgba(0,0,0,0.10);
  --border-2:   rgba(0, 120, 70, 0.28);
  --green:      #00875a;
  --green-dim:  #006b47;
  --green-glow: rgba(0, 135, 90, 0.12);
  --text:       #0f1e17;
  --text-dim:   #3d5a4a;
  --text-muted: #7a9a88;
  --shadow:     0 8px 32px rgba(0,0,0,0.10);
  --shadow-green: 0 0 40px rgba(0,135,90,0.18);
}

/* ── Theme Transition ── */
body,
body * {
  transition:
    background-color 0.35s ease,
    border-color     0.35s ease,
    color            0.25s ease,
    box-shadow       0.35s ease;
}
/* Animasyon olan elementlerde transition çakışmasını önle */
.cursor, .cursor-follower,
.hero-title, .hero-title *,
#particle-canvas,
.about-molecule *,
.spin-ring, .spin-ring-reverse,
.pulse-atom, .orbit-atom,
.badge-dot,
.loader,
.loader * {
  transition: none !important;
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: 80px; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-main);
  line-height: 1.6;
  overflow-x: hidden;
  cursor: none;
}
a { text-decoration: none; color: inherit; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; border: none; background: none; }

/* ── Custom Cursor ── */
.cursor {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  transition: transform 0.1s;
}
.cursor-follower {
  width: 32px; height: 32px;
  border: 1.5px solid var(--green);
  border-radius: 50%;
  position: fixed; top: 0; left: 0;
  pointer-events: none; z-index: 9998;
  transform: translate(-50%, -50%);
  opacity: 0.5;
  transition: transform 0.15s ease, width 0.3s, height 0.3s, opacity 0.3s;
}
body:hover .cursor-follower { opacity: 0.5; }
a:hover ~ .cursor-follower,
button:hover ~ .cursor-follower { width: 48px; height: 64px; }

/* ── Loader ── */
.loader {
  position: fixed; inset: 0;
  background: var(--bg);
  display: flex; align-items: center; justify-content: center;
  z-index: 10000;
  transition: opacity 0.5s, visibility 0.5s;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.loader-inner { text-align: center; }
.loader-molecule { width: 80px; height: 80px; animation: loader-spin 2s linear infinite; }
.mol-atom { animation: pulse-atom 1.5s ease-in-out infinite alternate; }
.mol-center { animation: pulse-center 1.5s ease-in-out infinite; }
.loader-text {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: 4px;
  color: var(--green);
  margin-top: 16px;
  animation: fadeIn 0.5s ease 0.3s both;
}
@keyframes loader-spin { to { transform: rotate(360deg); } }
@keyframes pulse-atom { from { opacity: 0.4; } to { opacity: 1; } }
@keyframes pulse-center { 0%,100%{r:12;} 50%{r:15;} }
@keyframes fadeIn { from{opacity:0;} to{opacity:1;} }

/* ── Container ── */
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: 100px 0; }

/* ── Theme Toggle Button ── */
.theme-toggle {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--surface);
  border: 1.5px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  color: var(--text-dim);
  cursor: pointer;
  transition: background 0.3s, border-color 0.3s, color 0.3s, transform 0.3s;
  flex-shrink: 0;
  position: relative;
  overflow: hidden;
}
.theme-toggle:hover {
  background: var(--green-glow);
  border-color: var(--border-2);
  color: var(--green);
  transform: rotate(20deg);
}
.theme-toggle svg {
  width: 18px; height: 18px;
  position: absolute;
  transition: opacity 0.3s ease, transform 0.4s ease;
}
/* Gece modu: ay görünür, güneş gizli */
.icon-moon { opacity: 1; transform: rotate(0deg) scale(1); }
.icon-sun  { opacity: 0; transform: rotate(90deg) scale(0.5); }
/* Gündüz modu: güneş görünür, ay gizli */
[data-theme="light"] .icon-moon { opacity: 0; transform: rotate(-90deg) scale(0.5); }
[data-theme="light"] .icon-sun  { opacity: 1; transform: rotate(0deg) scale(1); }

/* ── Navbar ── */
.navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 20px 0;
  transition: background 0.3s, padding 0.3s, backdrop-filter 0.3s;
}
.navbar.scrolled {
  background: rgba(8, 12, 14, 0.88);
  backdrop-filter: blur(20px);
  padding: 12px 0;
  border-bottom: 1px solid var(--border);
}
[data-theme="light"] .navbar.scrolled {
  background: rgba(244, 248, 245, 0.92);
}
.nav-container {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

/* Logo: PNG versiyonları tema moduna göre göster/gizle */
.logo-img {
  display: block;
  height: 64px;
  width: auto;
  object-fit: contain;
  transition: opacity 0.3s;
}
/* Koyu mod (varsayılan): koyu fonda görünen logo */
.logo-dark  { display: block; }
.logo-light { display: none; }

/* Açık mod: açık fonda görünen logo */
[data-theme="light"] .logo-dark  { display: none; }
[data-theme="light"] .logo-light { display: block; }
/* Loader ekranındaki kelime işareti için (nav artık PNG kullanıyor) */
.brand-wordmark {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  letter-spacing: 2px;
  line-height: 1;
}
/* .brand-t — sadece loader ekranında kullanılır */
.brand-t {
  color: var(--green);
  font-weight: 900;
  letter-spacing: 0;
  text-shadow: 0 0 14px rgba(0,230,118,0.38);
}
.nav-links {
  display: flex; align-items: center; gap: 8px;
}
.nav-link {
  padding: 8px 14px;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: color 0.3s, background 0.3s;
}
.nav-link:hover { color: var(--text); background: var(--surface); }
.nav-link.active { color: var(--green); }
.nav-cta {
  background: var(--green);
  color: #000 !important;
  font-weight: 600;
  padding: 8px 20px;
}
.nav-cta:hover { background: var(--green-dim); color: #000 !important; }
.nav-burger {
  display: none; flex-direction: column; gap: 5px;
  width: 30px; padding: 4px;
}
.nav-burger span {
  display: block; width: 100%; height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 14px 28px;
  border-radius: 10px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.btn::before {
  content: '';
  position: absolute; inset: 0;
  background: rgba(255,255,255,0.1);
  transform: translateX(-100%);
  transition: transform 0.3s ease;
}
.btn:hover::before { transform: translateX(0); }
.btn-primary {
  background: var(--green);
  color: #000;
}
.btn-primary:hover { background: var(--green-dim); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,230,118,0.3); }
.btn-ghost {
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover { border-color: var(--border-2); background: var(--surface-2); transform: translateY(-2px); }
.btn-outline {
  background: transparent;
  color: var(--green);
  border: 1.5px solid var(--green);
}
.btn-outline:hover { background: var(--green-glow); transform: translateY(-2px); }
.full-width { width: 100%; justify-content: center; }

/* ── Gradient Text ── */
.gradient-text {
  background: linear-gradient(135deg, #00e676, #69f0ae, #00bcd4);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ── Section Tags ── */
.section-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 14px;
  background: var(--green-glow);
  border: 1px solid var(--border-2);
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green);
  letter-spacing: 0.5px;
  margin-bottom: 16px;
  text-transform: uppercase;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  margin-bottom: 20px;
}
.section-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 500px;
}
.section-header { margin-bottom: 60px; }

/* ── Reveal Animations ── */
.reveal-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ── HERO ── */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex; align-items: center;
  overflow: hidden;
}
#particle-canvas {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  z-index: 0;
}
.hero-content {
  position: relative; z-index: 1;
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  padding-top: 100px;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  background: var(--green-glow);
  border: 1px solid var(--border-2);
  border-radius: 100px;
  font-size: 0.85rem; font-weight: 600;
  color: var(--green);
  margin-bottom: 28px;
}
.badge-dot {
  width: 6px; height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: blink 1.5s infinite;
}
@keyframes blink { 0%,100%{opacity:1;} 50%{opacity:0.2;} }
.hero-title {
  font-family: var(--font-head);
  font-size: clamp(3rem, 7vw, 6rem);
  font-weight: 800;
  line-height: 1.05;
  letter-spacing: -1px;
  margin-bottom: 24px;
}
.hero-sub {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 60px; }
.hero-stats {
  display: flex; align-items: center; gap: 32px;
  padding: 24px 32px;
  background: var(--surface);
  backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: fit-content;
}
.stat-item { text-align: center; }

/* Tıklanabilir stat kutusu */
a.stat-item-link {
  text-decoration: none;
  color: inherit;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  transition: border-color 0.2s, background 0.2s, transform 0.2s;
}
a.stat-item-link:hover {
  border-color: rgba(0,230,118,0.35);
  background: rgba(0,230,118,0.05);
  transform: translateY(-2px);
}
[data-theme="light"] a.stat-item-link:hover {
  border-color: rgba(0,135,90,0.25);
  background: rgba(0,135,90,0.05);
}
.stat-link-hint {
  font-size: 0.72rem !important;
  color: var(--green) !important;
  margin-top: 4px;
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 0.2s, transform 0.2s;
  letter-spacing: 0.02em;
}
a.stat-item-link:hover .stat-link-hint {
  opacity: 1;
  transform: translateY(0);
}
.stat-item .stat-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 800;
  color: var(--green);
  display: inline;
}
.stat-item span:last-of-type {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--green);
}
.stat-item p {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.stat-divider { width: 1px; height: 40px; background: var(--border); }
.hero-scroll-hint {
  position: absolute; bottom: 40px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  font-size: 0.75rem; color: var(--text-muted);
  text-transform: uppercase; letter-spacing: 2px;
  animation: float 2s ease-in-out infinite;
}
.scroll-line {
  width: 1px; height: 40px;
  background: linear-gradient(to bottom, var(--text-muted), transparent);
}
@keyframes float { 0%,100%{transform:translateX(-50%) translateY(0);} 50%{transform:translateX(-50%) translateY(8px);} }

/* ── MARQUEE ── */
.marquee-wrap {
  overflow: hidden;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
  background: var(--bg-2);
}
.marquee-track {
  display: flex; gap: 40px;
  width: max-content;
  animation: marquee 25s linear infinite;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 1px;
  color: var(--text-muted);
  text-transform: uppercase;
}
.marquee-track .sep { color: var(--green); }
@keyframes marquee { from{transform:translateX(0);} to{transform:translateX(-50%);} }

/* ── ABOUT ── */
.about { background: var(--bg-2); }
.about-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: center;
}
.about-visual { position: relative; display: flex; justify-content: center; align-items: center; }
.about-molecule-wrap {
  position: relative;
  width: 320px; height: 320px;
  display: flex; justify-content: center; align-items: center;
}
.about-molecule { width: 100%; height: 100%; }
.spin-ring { animation: spin 20s linear infinite; transform-origin: 50% 50%; }
.spin-ring-reverse { animation: spin 30s linear infinite reverse; transform-origin: 50% 50%; }
@keyframes spin { from{transform: rotate(0deg);} to{transform: rotate(360deg);} }
.pulse-atom { animation: pulse-glow 3s ease-in-out infinite; }
@keyframes pulse-glow {
  0%,100%{filter:drop-shadow(0 0 4px #00e676);opacity:0.9;}
  50%{filter:drop-shadow(0 0 16px #00e676);opacity:1;}
}
.orbit-atom { animation: orbit-pulse 2s ease-in-out infinite alternate; }
@keyframes orbit-pulse { from{opacity:0.5;} to{opacity:1;} }
.about-badge-float {
  position: absolute; top: 20px; right: -10px;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  width: 80px; height: 80px;
  background: var(--green);
  border-radius: 50%;
  color: #000;
  font-weight: 700;
  font-size: 0.75rem;
  text-align: center;
  box-shadow: 0 0 30px rgba(0,230,118,0.4);
  animation: float 3s ease-in-out infinite;
}
.about-text {
  color: var(--text-dim);
  margin-bottom: 16px;
  font-size: 1.05rem;
  line-height: 1.8;
}
.about-features {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-top: 28px;
}
.feature-chip {
  display: flex; align-items: center; gap: 6px;
  padding: 8px 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--green);
  transition: var(--transition);
}
.feature-chip:hover { background: var(--green-glow); border-color: var(--border-2); }
.feature-chip svg { color: var(--green); flex-shrink: 0; }

/* ── SECTORS ── */
.sectors { background: var(--bg); }
.sectors-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.sector-card {
  padding: 32px 26px 44px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  position: relative; overflow: hidden;
  transition: all 0.4s ease;
  cursor: default;
}
.sector-card::before {
  content: '';
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--green-glow), transparent);
  opacity: 0;
  transition: opacity 0.4s;
}
.sector-card:hover { border-color: var(--border-2); transform: translateY(-8px); box-shadow: var(--shadow-green); }
.sector-card:hover::before { opacity: 1; }
.sector-icon {
  width: 56px; height: 56px;
  margin-bottom: 20px;
}
.sector-icon svg { width: 100%; height: 100%; }
.sector-card h3 {
  font-family: var(--font-head);
  font-size: 1.12rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.sector-card p { color: var(--text-dim); font-size: 0.88rem; line-height: 1.62; }
.sector-arrow {
  position: absolute; bottom: 24px; right: 24px;
  color: var(--green);
  font-size: 1.2rem;
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s ease;
}
.sector-card:hover .sector-arrow { opacity: 1; transform: translateX(0); }

/* ── EXTRACTS ── */
.extracts { background: var(--bg-2); }

.extracts-header {
  display: flex; align-items: flex-start;
  justify-content: space-between; gap: 40px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.ext-header-badges {
  display: flex; gap: 16px;
  flex-shrink: 0;
  align-self: center;
}
.ext-badge {
  display: flex; flex-direction: column; align-items: center;
  padding: 20px 24px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-align: center;
  min-width: 100px;
  transition: all 0.3s;
}
.ext-badge:hover { border-color: var(--border-2); background: var(--green-glow); }
.ext-badge-icon {
  width: 36px; height: 36px;
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 8px;
  color: var(--green);
}
.ext-badge-icon svg { width: 100%; height: 100%; }
.ext-badge strong {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--green);
  display: block;
}
.ext-badge span { font-size: 0.75rem; color: var(--text-muted); margin-top: 2px; }

/* Filter tabs */
.ext-filter-wrap {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 36px;
}
.ext-filter {
  padding: 9px 20px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: all 0.3s;
  cursor: pointer;
}
.ext-filter:hover { color: var(--text); border-color: var(--border-2); }
.ext-filter.active { background: var(--green-glow); border-color: var(--green); color: var(--green); font-weight: 600; }

/* Extract Grid */
.ext-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 20px;
  margin-bottom: 48px;
}
.ext-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  transition: all 0.35s ease;
  position: relative;
  overflow: hidden;
  cursor: default;
}
.ext-card::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--green), transparent);
  transform: scaleX(0);
  transition: transform 0.4s ease;
}
.ext-card:hover {
  border-color: var(--border-2);
  transform: translateY(-6px);
  box-shadow: 0 12px 40px rgba(0,230,118,0.1);
}
.ext-card:hover::before { transform: scaleX(1); }
.ext-card-top {
  display: flex; align-items: center; gap: 14px;
  margin-bottom: 14px;
}
.ext-svg-icon {
  width: 52px; height: 52px;
  background: var(--green-glow);
  border: 1px solid var(--border-2);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  transition: transform 0.3s, background 0.3s;
  padding: 8px;
  color: var(--green);
}
.ext-svg-icon svg {
  width: 100%; height: 100%;
  display: block;
}
.ext-card:hover .ext-svg-icon {
  transform: scale(1.08) rotate(-4deg);
  background: rgba(0, 230, 118, 0.18);
}
.ext-card-titles h4 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 3px;
  line-height: 1.2;
}
.ext-latin {
  font-size: 0.75rem;
  color: var(--text-muted);
  font-style: italic;
}
.ext-compound {
  display: flex; align-items: center; gap: 6px;
  margin-bottom: 8px;
  padding: 6px 10px;
  background: rgba(0,230,118,0.06);
  border-radius: 6px;
  border-left: 2px solid var(--green);
}
.ext-compound-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  flex-shrink: 0;
}
.ext-compound-val {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--green);
}
.ext-ratio-badge {
  margin-left: auto;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.67rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  background: rgba(0,230,118,0.10);
  border: 1px solid rgba(0,230,118,0.22);
  color: var(--green);
}
[data-theme="light"] .ext-ratio-badge {
  background: rgba(0,135,90,0.08);
  border-color: rgba(0,135,90,0.18);
}
.ext-ratio-row {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.ext-ratio-row span {
  padding: 3px 8px;
  border-radius: 999px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.68rem;
  font-weight: 600;
}
.ext-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 2px;
}
.ext-sectors {
  display: flex; flex-wrap: wrap; gap: 5px;
}
.ext-sector-tag {
  padding: 3px 8px;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: border-color 0.3s, color 0.3s;
}
.ext-card:hover .ext-sector-tag {
  border-color: rgba(0,230,118,0.25);
  color: var(--text);
}
.ext-form-badge {
  display: inline-flex; align-items: center; gap: 4px;
  padding: 3px 9px;
  background: rgba(0,188,212,0.08);
  border: 1px solid rgba(0,188,212,0.25);
  border-radius: 100px;
  font-size: 0.68rem;
  font-weight: 600;
  color: #4dd0e1;
  white-space: nowrap;
  flex-shrink: 0;
}
.ext-form-badge svg { opacity: 0.85; }

/* CTA Banner */
.ext-cta { margin-top: 16px; }
.ext-cta-inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 24px;
  padding: 36px 44px;
  background: linear-gradient(135deg, rgba(0,230,118,0.08), rgba(0,188,212,0.06));
  border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  flex-wrap: wrap;
}
.ext-cta-text h3 {
  font-family: var(--font-head);
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 6px;
}
.ext-cta-text p { color: var(--text-dim); font-size: 0.95rem; }
.ext-cta-btns { display: flex; gap: 12px; flex-wrap: wrap; }

/* ── CHEMICALS ── */
.chemicals { background: var(--bg); }
.chem-filter-wrap {
  display: flex; flex-wrap: wrap; gap: 10px;
  margin-bottom: 36px;
}
.chem-filter {
  padding: 8px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dim);
  transition: all 0.3s;
}
.chem-filter:hover { color: var(--text); border-color: var(--border-2); }
.chem-filter.active { background: var(--green-glow); border-color: var(--green); color: var(--green); }
.chem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
  gap: 14px;
  margin-bottom: 32px;
}
.chem-item {
  min-height: 128px;
  padding: 18px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.86rem;
  color: var(--text-dim);
  line-height: 1.55;
  transition: all 0.3s ease;
  cursor: default;
}
.chem-item strong {
  display: block;
  margin-bottom: 8px;
  color: var(--text);
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
}
.chem-item span {
  display: block;
}
.chem-item:hover {
  border-color: var(--border-2);
  color: var(--text);
  background: var(--green-glow);
  transform: translateY(-2px);
}
.chem-item.hidden { display: none; }
.chem-show-more { text-align: center; }

/* ── WHY US ── */
.whyus { background: var(--bg-2); }
.whyus-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px;
}
.why-card {
  padding: 36px 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  transition: all 0.4s ease;
  position: relative;
  overflow: hidden;
}
.why-card:hover { border-color: var(--border-2); transform: translateY(-6px); }
.why-num {
  font-family: var(--font-head);
  font-size: 3.5rem;
  font-weight: 900;
  color: var(--border-2);
  line-height: 1;
  margin-bottom: 16px;
  transition: color 0.3s;
}
.why-card:hover .why-num { color: var(--green); }
.why-card h4 {
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.why-card p { color: var(--text-dim); font-size: 0.9rem; line-height: 1.7; }

/* ── CONTACT ── */
.contact { background: var(--bg); }
.contact-grid {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: start;
}
.contact-items { margin-top: 32px; display: flex; flex-direction: column; gap: 16px; }
.contact-item {
  display: flex; align-items: center; gap: 16px;
  padding: 18px 22px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all 0.3s;
}
.contact-item:hover { border-color: var(--border-2); background: var(--green-glow); transform: translateX(4px); }
.contact-icon {
  width: 44px; height: 44px;
  background: var(--green-glow);
  border: 1px solid var(--border-2);
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  color: var(--green);
}
.contact-icon svg { width: 20px; height: 20px; }
.contact-item span { font-size: 0.78rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }
.contact-item strong { display: block; font-weight: 600; margin-top: 2px; }
.contact-social { display: flex; gap: 12px; margin-top: 8px; }
.social-btn {
  display: flex; align-items: center; gap: 8px;
  padding: 10px 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  font-size: 0.85rem; font-weight: 500;
  color: var(--text-dim);
  transition: all 0.3s;
}
.social-btn:hover { border-color: var(--border-2); color: var(--green); background: var(--green-glow); }
.social-btn svg { width: 18px; height: 18px; }

/* ── FORM ── */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
}

/* Form geri bildirim mesajı */
.form-feedback {
  margin-top: 12px;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.88rem;
  line-height: 1.5;
}
.form-feedback.success {
  background: rgba(0,230,118,0.10);
  border: 1px solid rgba(0,230,118,0.25);
  color: var(--green);
}
.form-feedback.error {
  background: rgba(229,62,62,0.08);
  border: 1px solid rgba(229,62,62,0.22);
  color: #fc8181;
}
.form-feedback a { color: inherit; text-decoration: underline; }

[data-theme="light"] .form-feedback.error { color: #c53030; }

/* Gönder butonu spinner */
@keyframes spin { to { transform: rotate(360deg); } }
.spin { animation: spin 0.8s linear infinite; display: inline-block; vertical-align: middle; }
.contact-form h3 {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 28px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--bg-3);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.95rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  outline: none;
  resize: none;
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-muted); }
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-glow);
}
.form-group select { appearance: none; cursor: pointer; }
.form-group select option { background: var(--bg-3); }

/* ── FOOTER ── */
.footer {
  background: var(--bg-2);
  border-top: 1px solid var(--border);
  padding: 60px 0 30px;
}
.footer-top {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border);
}
.footer-brand .nav-logo { margin-bottom: 14px; }
.footer-brand p { color: var(--text-muted); font-size: 0.9rem; max-width: 280px; line-height: 1.7; }
.footer-links-group h5 {
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.footer-links-group ul { display: flex; flex-direction: column; gap: 10px; }
.footer-links-group a { color: var(--text-muted); font-size: 0.9rem; transition: color 0.3s; }
.footer-links-group a:hover { color: var(--green); }
.footer-bottom {
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 10px;
}
.footer-bottom p { color: var(--text-muted); font-size: 0.85rem; }
.footer-made { color: var(--text-muted); }

/* ══════════════════════════════════════
   LIGHT MODE OVERRIDES
   ══════════════════════════════════════ */

/* Gradient text — gündüz daha koyu */
[data-theme="light"] .gradient-text {
  background: linear-gradient(135deg, #00875a, #006b47, #005a8a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Hero — particle arka planı açık modda hafif */
[data-theme="light"] .hero {
  background: linear-gradient(160deg, #eaf2ec 0%, #f4f8f5 60%, #e8f4f0 100%);
}

/* Hero badge */
[data-theme="light"] .hero-badge {
  background: rgba(0,135,90,0.10);
  border-color: rgba(0,135,90,0.30);
}

/* Hero stats */
[data-theme="light"] .hero-stats {
  background: rgba(255,255,255,0.75);
  border-color: rgba(0,0,0,0.10);
  backdrop-filter: blur(12px);
}

/* Buttons gündüz */
[data-theme="light"] .btn-primary { background: var(--green); color: #fff; }
[data-theme="light"] .btn-primary:hover { background: var(--green-dim); }
[data-theme="light"] .btn-ghost { background: rgba(0,0,0,0.05); border-color: rgba(0,0,0,0.15); }
[data-theme="light"] .btn-outline { border-color: var(--green); color: var(--green); }
[data-theme="light"] .btn-outline:hover { background: rgba(0,135,90,0.10); }

/* Nav CTA gündüz */
[data-theme="light"] .nav-cta { background: var(--green); color: #fff !important; }
[data-theme="light"] .nav-cta:hover { background: var(--green-dim); color: #fff !important; }

/* Marquee */
[data-theme="light"] .marquee-wrap { background: #eaf2ec; }

/* Kartlar — gündüz beyaz kart + hafif gölge */
[data-theme="light"] .sector-card,
[data-theme="light"] .why-card,
[data-theme="light"] .ext-card,
[data-theme="light"] .ext-badge,
[data-theme="light"] .contact-item,
[data-theme="light"] .contact-form,
[data-theme="light"] .social-btn,
[data-theme="light"] .chem-item,
[data-theme="light"] .chem-filter,
[data-theme="light"] .ext-filter {
  background: #ffffff;
  box-shadow: 0 2px 12px rgba(0,0,0,0.07);
}
[data-theme="light"] .sector-card:hover,
[data-theme="light"] .why-card:hover,
[data-theme="light"] .ext-card:hover,
[data-theme="light"] .chem-item:hover {
  box-shadow: 0 8px 32px rgba(0,135,90,0.15);
}

/* Ext SVG icon gündüz */
[data-theme="light"] .ext-svg-icon {
  background: rgba(0,135,90,0.10);
  border-color: rgba(0,135,90,0.25);
}
[data-theme="light"] .ext-card:hover .ext-svg-icon {
  background: rgba(0,135,90,0.18);
}

/* Compound satırı */
[data-theme="light"] .ext-compound {
  background: rgba(0,135,90,0.07);
  border-left-color: var(--green);
}

/* Feature chips */
[data-theme="light"] .feature-chip {
  background: #fff;
  border-color: rgba(0,0,0,0.12);
}
[data-theme="light"] .feature-chip:hover {
  background: rgba(0,135,90,0.10);
  border-color: rgba(0,135,90,0.30);
}

/* Section tag */
[data-theme="light"] .section-tag {
  background: rgba(0,135,90,0.10);
  border-color: rgba(0,135,90,0.28);
}

/* Form alanları gündüz */
[data-theme="light"] .form-group input,
[data-theme="light"] .form-group select,
[data-theme="light"] .form-group textarea {
  background: #f4f8f5;
  border-color: rgba(0,0,0,0.14);
  color: var(--text);
}
[data-theme="light"] .form-group select option {
  background: #f4f8f5;
  color: var(--text);
}

/* Mobile nav gündüz */
[data-theme="light"] .nav-links.open {
  background: rgba(244,248,245,0.97);
}

/* Loader gündüz */
[data-theme="light"] .loader { background: var(--bg); }

/* CTA banner gündüz */
[data-theme="light"] .ext-cta-inner {
  background: linear-gradient(135deg, rgba(0,135,90,0.07), rgba(0,90,138,0.05));
  border-color: rgba(0,135,90,0.22);
}

/* Scroll hint gündüz */
[data-theme="light"] .hero-scroll-hint { color: var(--text-muted); }

/* About molecule glow gündüz */
[data-theme="light"] .about-badge-float {
  background: var(--green);
  color: #fff;
}

/* Loader text */
[data-theme="light"] .loader-text { color: var(--green); }

/* WhatsApp Float ── */
.whatsapp-float {
  position: fixed; bottom: 30px; right: 30px;
  width: 56px; height: 56px;
  background: #25d366;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  z-index: 900;
  transition: transform 0.3s, box-shadow 0.3s;
}
.whatsapp-float:hover { transform: scale(1.1); box-shadow: 0 8px 30px rgba(37,211,102,0.5); }
.whatsapp-float svg { width: 28px; height: 28px; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .sectors-grid { grid-template-columns: repeat(2, 1fr); }
  .whyus-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { grid-template-columns: 1fr 1fr; }
  .ext-grid { grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); }
  .extracts-header { flex-direction: column; }
  .ext-header-badges { align-self: flex-start; }
}
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
  .about-visual { display: none; }
  .contact-grid { grid-template-columns: 1fr; }
  .footer-top { grid-template-columns: 1fr; }
  .hero-stats { flex-direction: column; gap: 16px; width: 100%; }
  .stat-divider { width: 100%; height: 1px; }
  .nav-links { display: none; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: fixed; inset: 0; top: 70px;
    background: rgba(8,12,14,0.97);
    backdrop-filter: blur(20px);
    align-items: center; justify-content: center;
    gap: 20px; z-index: 999;
  }
  .nav-burger { display: flex; }
  .theme-toggle { width: 36px; height: 36px; }
  .form-row { grid-template-columns: 1fr; }
  .cursor, .cursor-follower { display: none; }
  body { cursor: auto; }
}
@media (max-width: 480px) {
  .sectors-grid { grid-template-columns: 1fr; }
  .whyus-grid { grid-template-columns: 1fr; }
  .ext-grid { grid-template-columns: 1fr; }
  .ext-header-badges { flex-wrap: wrap; }
  .ext-cta-inner { flex-direction: column; }
  .section { padding: 60px 0; }
  .hero-title { font-size: 2.5rem; }
}