/* ===================================================================
   İRİS OPTİK — Design System
   Fonts: Outfit (display) + Plus Jakarta Sans (body)
   =================================================================== */

/* ---------- Design Tokens ---------- */
:root {
  /* Brand & neutrals */
  --ink: #0b2233;          /* deep navy (no pure black) */
  --ink-2: #123247;
  --ink-3: #1b3e54;
  --brand: #16c0b0;        /* turquoise — health, clarity */
  --brand-2: #0b6ea8;      /* blue */
  --brand-deep: #0d8f86;
  --accent: #e23b3b;       /* logo red — used sparingly */

  --bg: #f4fafb;
  --bg-soft: #eaf4f5;
  --surface: #ffffff;
  --line: #dde9ec;
  --line-soft: #e9f1f3;

  --text: #0b2233;
  --muted: #59727d;
  --white: #ffffff;

  /* Gradients */
  --grad-brand: linear-gradient(135deg, #16c0b0 0%, #0b6ea8 100%);
  --grad-ink: linear-gradient(160deg, #0e2a3c 0%, #0b2233 60%, #09202f 100%);

  /* Typography */
  --font-display: "Outfit", system-ui, sans-serif;
  --font-body: "Plus Jakarta Sans", system-ui, sans-serif;

  /* Spacing scale (4 / 8) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;
  --space-9: 6rem;

  /* Radius */
  --r-sm: 10px;
  --r: 16px;
  --r-lg: 24px;
  --r-xl: 32px;
  --r-pill: 999px;

  /* Shadows (tinted to brand/ink) */
  --shadow-sm: 0 2px 8px rgba(11, 34, 51, 0.06);
  --shadow: 0 12px 30px -12px rgba(11, 34, 51, 0.16);
  --shadow-lg: 0 28px 60px -22px rgba(11, 34, 51, 0.28);
  --shadow-brand: 0 18px 40px -16px rgba(13, 143, 134, 0.45);

  /* Layout */
  --container: 1200px;
  --header-h: 76px;

  /* Motion */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  --dur: 0.35s;
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 12px); }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

img { max-width: 100%; display: block; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; cursor: pointer; }
h1, h2, h3, h4 { font-family: var(--font-display); line-height: 1.12; margin: 0; letter-spacing: -0.02em; color: var(--ink); }

:focus-visible {
  outline: 3px solid var(--brand);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  left: 12px; top: -60px;
  background: var(--ink);
  color: #fff;
  padding: 10px 18px;
  border-radius: var(--r-sm);
  z-index: 2000;
  transition: top 0.2s var(--ease);
}
.skip-link:focus { top: 12px; }

/* ---------- Layout helpers ---------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

.section { padding-block: clamp(3.5rem, 8vw, 6.5rem); position: relative; }

.section-head { max-width: 720px; margin: 0 auto clamp(2rem, 5vw, 3.5rem); text-align: center; }
.section-title { font-size: clamp(1.7rem, 4vw, 2.7rem); font-weight: 700; }
.section-text { color: var(--muted); font-size: 1.05rem; margin-top: var(--space-4); max-width: 60ch; }
.section-text-center { margin-inline: auto; }

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.82rem;
  letter-spacing: 0.08em; text-transform: uppercase;
  color: var(--brand-deep);
  margin-bottom: var(--space-4);
}
.eyebrow-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 0 4px rgba(226, 59, 59, 0.14); }
.eyebrow-light { color: #8fe6dc; }
.eyebrow-light .eyebrow-dot { box-shadow: 0 0 0 4px rgba(143, 230, 220, 0.18); }
.accent { color: var(--brand-deep); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 0.85rem 1.6rem;
  border: 1px solid transparent;
  border-radius: var(--r-pill);
  font-family: var(--font-body);
  font-weight: 600; font-size: 0.98rem;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
  white-space: nowrap;
  touch-action: manipulation;
}
.btn:active { transform: translateY(1px) scale(0.985); }

.btn-primary {
  background: var(--grad-brand);
  color: #fff;
  box-shadow: var(--shadow-brand);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 22px 46px -16px rgba(13, 143, 134, 0.6); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.6);
  color: var(--ink);
  border-color: var(--line);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--brand); color: var(--brand-deep); }

.btn-light { background: #fff; color: var(--ink); }
.btn-light:hover { transform: translateY(-2px); box-shadow: var(--shadow); }

.btn-block { width: 100%; }

.btn-whatsapp {
  background: #1ebe5d; color: #fff; width: 100%;
  box-shadow: 0 16px 34px -16px rgba(30, 190, 93, 0.6);
}
.btn-whatsapp:hover { transform: translateY(-2px); background: #19a851; }

/* ===================================================================
   HEADER / NAV
   =================================================================== */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  height: var(--header-h);
  z-index: 1000;
  display: flex; align-items: center;
  transition: background var(--dur) var(--ease), box-shadow var(--dur) var(--ease), height var(--dur) var(--ease);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); width: 100%; }

.site-header.scrolled {
  height: 66px;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: saturate(160%) blur(14px);
  box-shadow: 0 1px 0 var(--line), var(--shadow-sm);
}

.brand { display: inline-flex; align-items: center; flex-shrink: 0; }
.brand-logo { width: auto; height: 50px; transition: height var(--dur) var(--ease); }
.site-header.scrolled .brand-logo { height: 42px; }

.nav { display: flex; align-items: center; gap: clamp(1rem, 2.4vw, 2rem); }
.nav-list { display: flex; align-items: center; gap: clamp(0.6rem, 1.6vw, 1.4rem); }
.nav-link {
  position: relative;
  font-weight: 600; font-size: 0.95rem;
  color: var(--ink);
  padding: 6px 2px;
  transition: color var(--dur) var(--ease);
}
.nav-link::after {
  content: ""; position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 2px; border-radius: 2px;
  background: var(--grad-brand);
  transform: scaleX(0); transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav-link:hover { color: var(--brand-deep); }
.nav-link:hover::after,
.nav-link.active::after { transform: scaleX(1); }
.nav-link.active { color: var(--brand-deep); }

.nav-cta { padding: 0.6rem 1.3rem; font-size: 0.92rem; }
.nav-close { display: none; }

/* Hamburger */
.nav-toggle {
  display: none;
  flex-direction: column; justify-content: center; gap: 5px;
  width: 46px; height: 46px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(6px);
}
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform 0.3s var(--ease), opacity 0.3s var(--ease); margin-inline: auto; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.nav-overlay {
  position: fixed; inset: 0;
  background: rgba(11, 34, 51, 0.5);
  backdrop-filter: blur(2px);
  z-index: 999;
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.nav-overlay.show { opacity: 1; }

/* ===================================================================
   HERO
   =================================================================== */
.hero {
  position: relative;
  min-height: 100dvh;
  display: flex; align-items: center;
  padding-top: calc(var(--header-h) + 2rem);
  padding-bottom: var(--space-8);
  overflow: hidden;
  background:
    radial-gradient(1200px 600px at 80% -10%, rgba(22, 192, 176, 0.12), transparent 60%),
    radial-gradient(900px 500px at 0% 100%, rgba(11, 110, 168, 0.1), transparent 55%),
    var(--bg);
}
.hero-bg { position: absolute; inset: 0; z-index: 0; pointer-events: none; }
.blob { position: absolute; border-radius: 50%; filter: blur(60px); opacity: 0.5; }
.blob-1 { width: 460px; height: 460px; background: radial-gradient(circle, rgba(22,192,176,0.5), transparent 70%); top: -120px; right: -80px; animation: float 14s ease-in-out infinite; }
.blob-2 { width: 380px; height: 380px; background: radial-gradient(circle, rgba(11,110,168,0.4), transparent 70%); bottom: -100px; left: -60px; animation: float 18s ease-in-out infinite reverse; }
.grid-lines {
  position: absolute; inset: 0;
  background-image: linear-gradient(var(--line-soft) 1px, transparent 1px), linear-gradient(90deg, var(--line-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 30%, transparent 75%);
  opacity: 0.5;
}

.hero-inner {
  position: relative; z-index: 1;
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: clamp(2rem, 5vw, 4.5rem);
  width: 100%;
}

.hero-title {
  font-size: clamp(2.2rem, 5.4vw, 4rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  margin-top: var(--space-2);
}
.hero-text {
  color: var(--muted);
  font-size: clamp(1rem, 1.4vw, 1.18rem);
  margin: var(--space-5) 0 var(--space-6);
  max-width: 54ch;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: var(--space-3); }

.hero-trust {
  display: flex; flex-wrap: wrap; gap: clamp(1.2rem, 4vw, 2.8rem);
  margin-top: var(--space-7);
  padding-top: var(--space-6);
  border-top: 1px solid var(--line);
}
.hero-trust li { display: flex; flex-direction: column; }
.hero-trust strong { font-family: var(--font-display); font-size: clamp(1.5rem, 3vw, 2rem); font-weight: 800; color: var(--ink); }
.hero-trust span { font-size: 0.85rem; color: var(--muted); }

/* Hero visual */
.hero-visual { position: relative; min-height: 360px; display: flex; align-items: center; justify-content: center; }
.hero-glass-card {
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid rgba(255, 255, 255, 0.8);
  box-shadow: var(--shadow-lg), inset 0 1px 0 rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(16px);
  border-radius: var(--r-xl);
}
.hero-card-main {
  width: min(420px, 100%);
  aspect-ratio: 4 / 3;
  display: grid; place-items: center;
  padding: var(--space-6);
  background:
    radial-gradient(circle at 30% 20%, rgba(22,192,176,0.18), transparent 55%),
    rgba(255, 255, 255, 0.62);
}
.glasses-svg { width: 80%; height: auto; color: var(--ink); animation: float 9s ease-in-out infinite; }

.hero-card-float {
  position: absolute;
  display: flex; align-items: center; gap: 12px;
  padding: 0.85rem 1.1rem;
  border-radius: var(--r);
}
.hero-card-float strong { display: block; font-family: var(--font-display); font-weight: 700; font-size: 1rem; color: var(--ink); line-height: 1.1; }
.hero-card-float span { font-size: 0.8rem; color: var(--muted); }
.hero-card-1 { left: -8px; top: 6%; animation: float 7s ease-in-out infinite; }
.hero-card-2 { right: -10px; bottom: 8%; animation: float 8.5s ease-in-out infinite reverse; }
.mini-icon { display: grid; place-items: center; width: 40px; height: 40px; border-radius: 12px; background: rgba(22,192,176,0.14); color: var(--brand-deep); }
.rating-stars { color: #f6b73c; font-size: 1.1rem; letter-spacing: 1px; }

.scroll-cue {
  position: absolute; left: 50%; bottom: 22px; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid var(--muted); border-radius: 14px;
  display: grid; justify-items: center; z-index: 1; opacity: 0.6;
}
.scroll-cue span { width: 4px; height: 8px; border-radius: 2px; background: var(--brand-deep); margin-top: 7px; animation: scrollDot 1.8s var(--ease) infinite; }

@keyframes float { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }
@keyframes scrollDot { 0% { transform: translateY(0); opacity: 1; } 70% { transform: translateY(14px); opacity: 0; } 100% { opacity: 0; } }

/* ===================================================================
   MARKALAR (brand strip)
   =================================================================== */
.brands {
  padding-block: clamp(2.2rem, 5vw, 3.4rem);
  background: var(--surface);
  border-block: 1px solid var(--line);
}
.brands-eyebrow {
  text-align: center;
  color: var(--muted);
  font-size: 0.8rem; font-weight: 600;
  letter-spacing: 0.14em; text-transform: uppercase;
  margin: 0 0 clamp(1.2rem, 3vw, 2rem);
}
.brands-strip {
  display: flex; flex-wrap: wrap;
  justify-content: center; align-items: center;
  gap: clamp(1.1rem, 1.5vw + 0.6rem, 2.4rem);
}
.brand-chip {
  display: flex; align-items: center; justify-content: center;
  height: 48px;
  width: clamp(88px, 11vw, 122px);
}
.brand-img {
  max-height: 40px; max-width: 100%;
  width: auto; height: auto;
  object-fit: contain;
  opacity: 0.55;
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand-chip:hover .brand-img,
.brand-chip:focus-visible .brand-img {
  opacity: 1; transform: translateY(-2px);
}
/* Wordmark fallback (logo görseli yoksa) */
.brand-name {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(1.05rem, 2.2vw, 1.5rem);
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--ink); opacity: 0.5; white-space: nowrap;
  transition: opacity var(--dur) var(--ease), color var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.brand-chip:hover .brand-name { opacity: 1; color: var(--brand-deep); transform: translateY(-2px); }

/* ===================================================================
   HAKKIMIZDA
   =================================================================== */
.about-grid { display: grid; grid-template-columns: 0.85fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }

.about-visual { position: relative; }
.about-image-card {
  border-radius: var(--r-xl);
  background:
    radial-gradient(circle at 70% 20%, rgba(22,192,176,0.16), transparent 60%),
    var(--grad-ink);
  padding: clamp(1.5rem, 4vw, 3rem);
  display: grid; place-items: center;
  box-shadow: var(--shadow-lg);
  aspect-ratio: 5 / 4;
}
.about-eye svg { width: min(320px, 100%); height: auto; }
.about-badge {
  position: absolute; right: -10px; bottom: -18px;
  background: #fff; border-radius: var(--r);
  padding: 0.9rem 1.2rem; box-shadow: var(--shadow);
  border: 1px solid var(--line);
}
.about-badge strong { display: block; font-family: var(--font-display); color: var(--accent); font-weight: 700; }
.about-badge span { font-size: 0.82rem; color: var(--muted); }

.about-content .section-title { text-align: left; }
.about-content .section-text { text-align: left; margin-inline: 0; }

.stats-grid {
  display: grid; grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4); margin-top: var(--space-6);
}
.stat-card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.stat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.stat-num {
  display: block;
  font-family: var(--font-display); font-weight: 800;
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  background: var(--grad-brand);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}
.stat-label { font-size: 0.9rem; color: var(--muted); margin-top: 6px; display: block; }

/* ===================================================================
   ÜRÜNLER
   =================================================================== */
.products { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-soft) 100%); }
.products-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}
.product-card {
  grid-column: span 2;
  position: relative; overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-lg);
  padding: clamp(1.4rem, 2.4vw, 2rem);
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.product-card-featured {
  grid-column: span 3;
  background:
    radial-gradient(circle at 85% 0%, rgba(22,192,176,0.12), transparent 55%),
    var(--surface);
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(22,192,176,0.5); }
.product-icon {
  display: inline-grid; place-items: center;
  width: 60px; height: 60px; border-radius: 16px;
  background: rgba(22,192,176,0.12); color: var(--brand-deep);
  margin-bottom: var(--space-4);
  transition: transform var(--dur) var(--ease);
}
.product-card:hover .product-icon { transform: scale(1.08) rotate(-3deg); }
.product-title { font-size: 1.25rem; font-weight: 700; }
.product-desc { color: var(--muted); font-size: 0.96rem; margin: var(--space-2) 0 var(--space-4); }
.card-link {
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 600; color: var(--brand-deep);
  transition: gap var(--dur) var(--ease);
}
.card-link:hover { gap: 11px; }
.product-glow {
  position: absolute; right: -40px; top: -40px;
  width: 140px; height: 140px; border-radius: 50%;
  background: radial-gradient(circle, rgba(22,192,176,0.18), transparent 70%);
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.product-card:hover .product-glow { opacity: 1; }

/* ===================================================================
   HİZMETLER
   =================================================================== */
.services {
  background: var(--grad-ink);
  position: relative; overflow: hidden;
}
.services::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(700px 400px at 90% 0%, rgba(22,192,176,0.14), transparent 60%);
  pointer-events: none;
}
.services .section-title { color: #fff; }
.services .section-text { color: #b6cdd6; }
.services-grid {
  position: relative;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}
.service-card {
  background: rgba(255, 255, 255, 0.045);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 2.4vw, 2.1rem);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), border-color var(--dur) var(--ease);
}
.service-card:hover { transform: translateY(-6px); background: rgba(255,255,255,0.08); border-color: rgba(22,192,176,0.5); }
.service-icon {
  display: inline-grid; place-items: center;
  width: 52px; height: 52px; border-radius: 14px;
  background: rgba(22,192,176,0.18); color: #5fe6d6;
  margin-bottom: var(--space-4);
}
.service-title { color: #fff; font-size: 1.18rem; font-weight: 700; }
.service-desc { color: #a9c3cd; font-size: 0.95rem; margin-top: var(--space-2); }

/* ===================================================================
   KAMPANYALAR (carousel)
   =================================================================== */
.carousel { position: relative; max-width: 960px; margin-inline: auto; }
.carousel-viewport { overflow: hidden; border-radius: var(--r-xl); }
.carousel-track { display: flex; transition: transform 0.6s var(--ease); }
.slide { min-width: 100%; }
.slide-card {
  display: grid; grid-template-columns: 1.6fr 1fr; align-items: center; gap: var(--space-4);
  min-height: 280px;
  padding: clamp(1.8rem, 4vw, 3.2rem);
  color: #fff;
  position: relative; overflow: hidden;
}
.slide-teal { background: linear-gradient(130deg, #0d8f86, #0b6ea8); }
.slide-navy { background: linear-gradient(130deg, #123e57, #0b2233); }
.slide-cyan { background: linear-gradient(130deg, #16a8c0, #0d8f86); }
.slide-rose { background: linear-gradient(130deg, #c0405a, #7a2c45); }
.slide-tag {
  display: inline-block;
  background: rgba(255,255,255,0.18);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 4px 14px; border-radius: var(--r-pill);
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.04em;
  margin-bottom: var(--space-3);
}
.slide-title { color: #fff; font-size: clamp(1.4rem, 2.8vw, 2rem); font-weight: 700; margin-bottom: var(--space-3); max-width: 22ch; }
.slide-text p { color: rgba(255,255,255,0.85); margin: 0 0 var(--space-5); max-width: 40ch; }
.slide-deco { color: rgba(255,255,255,0.35); justify-self: end; }

.carousel-controls { display: flex; align-items: center; justify-content: center; gap: var(--space-4); margin-top: var(--space-5); }
.carousel-btn {
  width: 46px; height: 46px; border-radius: 50%;
  border: 1px solid var(--line);
  background: var(--surface); color: var(--ink);
  display: grid; place-items: center;
  box-shadow: var(--shadow-sm);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease);
}
.carousel-btn:hover { background: var(--brand-deep); color: #fff; transform: translateY(-2px); border-color: transparent; }
.carousel-dots { display: flex; gap: 8px; }
.carousel-dots button {
  width: 10px; height: 10px; border-radius: 50%; border: none;
  background: var(--line); transition: width var(--dur) var(--ease), background var(--dur) var(--ease);
}
.carousel-dots button.active { width: 28px; border-radius: 6px; background: var(--grad-brand); }

/* ===================================================================
   GALERİ
   =================================================================== */
.gallery-filters { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2); margin-bottom: var(--space-6); }
.filter-btn {
  padding: 0.5rem 1.2rem; border-radius: var(--r-pill);
  border: 1px solid var(--line); background: var(--surface); color: var(--muted);
  font-weight: 600; font-size: 0.9rem;
  transition: all var(--dur) var(--ease);
}
.filter-btn:hover { color: var(--brand-deep); border-color: var(--brand); }
.filter-btn.is-active { background: var(--ink); color: #fff; border-color: var(--ink); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-auto-rows: 200px;
  grid-auto-flow: dense;
  gap: clamp(0.7rem, 1.5vw, 1.1rem);
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
  will-change: opacity;
}
.gallery-grid.is-filtering { opacity: 0; transform: translateY(10px); }
.gallery-item {
  position: relative; overflow: hidden;
  border-radius: var(--r-lg);
  margin: 0; cursor: pointer;
  box-shadow: var(--shadow-sm);
  transition: opacity 0.4s var(--ease), transform 0.4s var(--ease);
}
.gallery-item.g-tall { grid-row: span 2; }
.gallery-item.g-wide { grid-column: span 2; }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s var(--ease); }
.gallery-item::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(to top, rgba(11,34,51,0.7), transparent 55%);
  opacity: 0; transition: opacity var(--dur) var(--ease);
}
.gallery-item:hover img { transform: scale(1.07); }
.gallery-item:hover::after { opacity: 1; }
.gallery-cap {
  position: absolute; left: 14px; bottom: 12px; z-index: 1;
  color: #fff; font-weight: 600; font-size: 0.9rem;
  opacity: 0; transform: translateY(8px);
  transition: opacity var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.gallery-item:hover .gallery-cap { opacity: 1; transform: translateY(0); }
.gallery-item.hide { display: none; }

/* Lightbox */
.lightbox { position: fixed; inset: 0; z-index: 1500; display: grid; place-items: center; }
.lightbox[hidden] { display: none; }
.lightbox-backdrop { position: absolute; inset: 0; background: rgba(8, 22, 32, 0.92); backdrop-filter: blur(4px); }
.lightbox-figure { position: relative; z-index: 1; margin: 0; max-width: min(90vw, 900px); text-align: center; }
.lightbox-figure img { width: 100%; max-height: 80vh; object-fit: contain; border-radius: var(--r); box-shadow: var(--shadow-lg); }
.lightbox-figure figcaption { color: #cfe1e7; margin-top: 12px; font-size: 0.95rem; }
.lightbox-close, .lightbox-nav {
  position: absolute; z-index: 2;
  width: 50px; height: 50px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1); color: #fff;
  display: grid; place-items: center;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease);
}
.lightbox-close { top: 22px; right: 22px; }
.lightbox-nav { top: 50%; transform: translateY(-50%); }
.lightbox-prev { left: 18px; }
.lightbox-next { right: 18px; }
.lightbox-close:hover, .lightbox-nav:hover { background: rgba(255,255,255,0.22); }
.lightbox-nav:hover { transform: translateY(-50%) scale(1.06); }

/* ===================================================================
   MÜŞTERİ YORUMLARI
   =================================================================== */
.testimonials { background: var(--grad-ink); position: relative; overflow: hidden; }
.testimonials::before {
  content: ""; position: absolute; inset: 0;
  background: radial-gradient(600px 400px at 10% 100%, rgba(11,110,168,0.2), transparent 60%);
  pointer-events: none;
}
.testimonials-grid {
  position: relative;
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: clamp(1rem, 2vw, 1.5rem);
}
.testimonial-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--r-lg);
  padding: clamp(1.5rem, 2.4vw, 2rem);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.06);
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.testimonial-card:hover { transform: translateY(-5px); background: rgba(255,255,255,0.08); }
.t-stars { color: #f6b73c; letter-spacing: 2px; font-size: 1rem; margin-bottom: var(--space-3); }
.t-text { color: #d6e6ec; font-size: 0.98rem; line-height: 1.7; margin: 0 0 var(--space-5); }
.t-author { display: flex; align-items: center; gap: 12px; }
.t-avatar {
  display: grid; place-items: center;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--grad-brand); color: #fff;
  font-family: var(--font-display); font-weight: 700; font-size: 0.95rem;
  flex-shrink: 0;
}
.t-author strong { display: block; color: #fff; font-weight: 600; font-size: 0.98rem; }
.t-author span { color: #94b0ba; font-size: 0.82rem; }

/* ===================================================================
   İLETİŞİM
   =================================================================== */
.contact-grid { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(1.5rem, 4vw, 3.5rem); align-items: start; }

.info-list { display: grid; gap: var(--space-4); margin-bottom: var(--space-5); }
.info-list li { display: flex; gap: var(--space-4); align-items: flex-start; }
.info-icon {
  display: grid; place-items: center; flex-shrink: 0;
  width: 46px; height: 46px; border-radius: 14px;
  background: rgba(22,192,176,0.12); color: var(--brand-deep);
}
.info-list strong { display: block; font-family: var(--font-display); font-weight: 600; color: var(--ink); margin-bottom: 2px; }
.info-list a, .info-list span { color: var(--muted); font-size: 0.96rem; }
.info-list a:hover { color: var(--brand-deep); }

.map-embed {
  position: relative;
  margin-top: var(--space-4);
  height: 220px; border-radius: var(--r-lg);
  border: 1px solid var(--line); overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.map-embed iframe {
  width: 100%; height: 100%; border: 0; display: block;
  filter: grayscale(0.15) contrast(1.02);
}
.map-directions {
  position: absolute; right: 12px; bottom: 12px; z-index: 1;
  display: inline-flex; align-items: center; gap: 7px;
  background: #fff; color: var(--ink);
  font-weight: 600; font-size: 0.88rem;
  padding: 8px 14px; border-radius: var(--r-pill);
  box-shadow: var(--shadow);
  transition: transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.map-directions svg { color: var(--accent); }
.map-directions:hover { transform: translateY(-2px); color: var(--brand-deep); }

/* Form */
.contact-form {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: clamp(1.5rem, 3vw, 2.4rem);
  box-shadow: var(--shadow);
  display: grid; gap: var(--space-4);
}
.field { display: grid; gap: var(--space-2); }
.field-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-4); }
.field label { font-weight: 600; font-size: 0.9rem; color: var(--ink); }
.req { color: var(--accent); }
.field input, .field textarea {
  width: 100%;
  font-family: inherit; font-size: 1rem;
  padding: 0.85rem 1rem;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: #fbfdfd; color: var(--text);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.field textarea { resize: vertical; min-height: 110px; }
.field input::placeholder, .field textarea::placeholder { color: #9fb3bc; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--brand);
  box-shadow: 0 0 0 4px rgba(22,192,176,0.15);
}
.field.invalid input, .field.invalid textarea { border-color: var(--accent); }
.field.invalid input:focus, .field.invalid textarea:focus { box-shadow: 0 0 0 4px rgba(226,59,59,0.15); }
.field-error { color: var(--accent); font-size: 0.82rem; min-height: 1em; }
.form-status { font-size: 0.92rem; text-align: center; margin: 0; min-height: 1.2em; }
.form-status.success { color: var(--brand-deep); font-weight: 600; }
.form-status.error { color: var(--accent); }

/* ===================================================================
   FOOTER
   =================================================================== */
.site-footer { background: var(--ink); color: #b9cdd5; padding-top: clamp(3rem, 6vw, 4.5rem); }
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: clamp(2rem, 4vw, 3.5rem);
  padding-bottom: var(--space-7);
}
.footer-logo-chip {
  display: inline-flex; align-items: center;
  background: #fff; padding: 12px 18px; border-radius: var(--r);
  box-shadow: var(--shadow);
}
.footer-logo-chip img { height: 46px; width: auto; }
.footer-brand p { margin: var(--space-4) 0; max-width: 40ch; font-size: 0.95rem; line-height: 1.7; }
.social { display: flex; gap: 10px; }
.social a {
  display: grid; place-items: center;
  width: 42px; height: 42px; border-radius: 12px;
  background: rgba(255,255,255,0.08); color: #cfe1e7;
  transition: background var(--dur) var(--ease), transform var(--dur) var(--ease), color var(--dur) var(--ease);
}
.social a:hover { background: var(--brand-deep); color: #fff; transform: translateY(-3px); }

.footer-col h3 { color: #fff; font-size: 1.05rem; font-weight: 600; margin-bottom: var(--space-4); }
.footer-col ul { display: grid; gap: var(--space-3); }
.footer-col a, .footer-contact li { color: #a7c0c9; font-size: 0.95rem; transition: color var(--dur) var(--ease); }
.footer-col a:hover { color: var(--brand); }
.footer-contact { display: grid; gap: var(--space-3); }

.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding-block: var(--space-5); }
.footer-bottom-inner { display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-2); }
.footer-bottom p { margin: 0; font-size: 0.86rem; color: #87a4ad; }

/* ===================================================================
   FLOATING ACTIONS
   =================================================================== */
.fab {
  position: fixed; z-index: 900;
  width: 56px; height: 56px; border-radius: 50%;
  display: grid; place-items: center;
  color: #fff; border: none;
  box-shadow: var(--shadow-lg);
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), background var(--dur) var(--ease);
}
.fab-whatsapp { right: 22px; bottom: 22px; background: #1ebe5d; animation: pulse 2.6s ease-out infinite; }
.fab-whatsapp:hover { transform: translateY(-3px) scale(1.05); background: #19a851; }
.fab-top {
  right: 22px; bottom: 90px; background: var(--ink);
  opacity: 0; visibility: hidden; transform: translateY(10px);
}
.fab-top.show { opacity: 1; visibility: visible; transform: translateY(0); }
.fab-top:hover { background: var(--brand-deep); transform: translateY(-3px); }

@keyframes pulse {
  0% { box-shadow: var(--shadow-lg), 0 0 0 0 rgba(30,190,93,0.45); }
  70% { box-shadow: var(--shadow-lg), 0 0 0 16px rgba(30,190,93,0); }
  100% { box-shadow: var(--shadow-lg), 0 0 0 0 rgba(30,190,93,0); }
}

/* ===================================================================
   SCROLL REVEAL
   =================================================================== */
.reveal { opacity: 0; transform: translateY(28px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); will-change: opacity, transform; }
.reveal.in-view { opacity: 1; transform: none; }

/* ===================================================================
   RESPONSIVE
   =================================================================== */
@media (max-width: 992px) {
  :root { --header-h: 70px; }
  .hero-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-visual { order: -1; min-height: 300px; }
  .hero-card-main { width: min(360px, 90%); }
  .about-grid { grid-template-columns: 1fr; gap: 3rem; }
  .about-visual { max-width: 460px; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .testimonials-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: 1fr; }
  .product-card-featured { grid-column: span 3; }
  .product-card { grid-column: span 3; }

  /* Mobile nav */
  .nav-toggle { display: flex; }
  .nav {
    position: fixed; top: 0; right: 0; bottom: 0;
    width: min(330px, 86vw);
    flex-direction: column; align-items: stretch;
    justify-content: flex-start; gap: 0;
    background: var(--surface);
    padding: calc(var(--header-h) + 1rem) 1.6rem 2rem;
    box-shadow: -20px 0 50px -20px rgba(11,34,51,0.4);
    transform: translateX(105%);
    transition: transform var(--dur) var(--ease);
    overflow-y: auto;
  }
  .nav.open { transform: translateX(0); }
  .nav-list { flex-direction: column; align-items: stretch; gap: 2px; }
  .nav-list li { width: 100%; }
  .nav-link { display: block; padding: 0.95rem 0.5rem; font-size: 1.05rem; border-bottom: 1px solid var(--line-soft); }
  .nav-link::after { display: none; }
  .nav-link.active { color: var(--brand-deep); }
  .nav-cta { margin-top: 1.4rem; width: 100%; padding: 0.9rem; }
  .nav-close {
    display: grid; place-items: center;
    position: absolute; top: 16px; right: 16px;
    width: 42px; height: 42px; border-radius: 12px;
    border: 1px solid var(--line); background: var(--surface); color: var(--ink);
  }
}

@media (max-width: 760px) {
  .products-grid { grid-template-columns: 1fr; }
  .product-card, .product-card-featured { grid-column: span 1; }
  .gallery-grid { grid-template-columns: repeat(2, 1fr); grid-auto-rows: 160px; }
  .gallery-item.g-wide { grid-column: span 2; }
  .slide-card { grid-template-columns: 1fr; text-align: left; }
  .slide-deco { display: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom-inner { flex-direction: column; }
}

@media (max-width: 540px) {
  .services-grid { grid-template-columns: 1fr; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 0.8rem; }
  .field-row { grid-template-columns: 1fr; }
  .hero-card-1 { left: 0; }
  .hero-card-2 { right: 0; }
  .hero-trust { gap: 1.4rem; }
  .about-badge { right: 0; }
}

/* ===================================================================
   REDUCED MOTION
   =================================================================== */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.01ms !important; }
  .reveal { opacity: 1; transform: none; }
  .blob, .glasses-svg, .hero-card-float, .fab-whatsapp { animation: none !important; }
}