:root {
  --ink: #232a31;          /* near-black (logo) — headings & body */
  --ink-soft: #4c5762;
  --muted: #8a96a2;

  --navy: #20262e;         /* logo black */
  --navy-2: #36414d;
  --accent: #00a0e0;       /* logo sky-blue */
  --accent-deep: #0086c2;
  --green: #00a0e0;        /* brand blue (name kept for compatibility) */
  --warm: #5cc4ef;         /* light-blue gradient stop */

  /* glass tokens */
  --glass-bg: rgba(255, 255, 255, 0.60);
  --glass-bg-strong: rgba(255, 255, 255, 0.86);
  --glass-brd: rgba(255, 255, 255, 0.82);
  --glass-shadow: 0 18px 48px -22px rgba(22, 40, 75, 0.30);
  --grad: linear-gradient(118deg, var(--navy), var(--green));
  --blur: 16px;

  --maxw: 1200px;
  --r: 18px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--ink);
  background: #eef3fb;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4 { line-height: 1.08; letter-spacing: -0.02em; margin: 0; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; }

/* ===================== Ambient daylight scene ===================== */
.scene { position: fixed; inset: 0; z-index: -2; overflow: hidden; }
.scene__sky {
  position: absolute; inset: 0;
  background:
    radial-gradient(90% 70% at 84% -6%, #e8f4fb 0%, rgba(232,244,251,0) 48%),
    radial-gradient(80% 70% at 10% 0%, #eef3f9 0%, rgba(238,243,249,0) 52%),
    linear-gradient(180deg, #ffffff 0%, #f4f7fb 55%, #eef2f8 100%);
}
.scene__bloom {
  position: absolute; top: -18%; right: -8%;
  width: 56vw; height: 56vw;
  background: radial-gradient(circle, rgba(0,160,224,0.12), rgba(0,160,224,0) 60%);
  filter: blur(20px);
  animation: bloom 12s ease-in-out infinite alternate;
}
@keyframes bloom { from { transform: translate(0,0) scale(1); opacity: .8; } to { transform: translate(-3%, 4%) scale(1.1); opacity: 1; } }

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(40px);
  opacity: 0.55;
  animation: float 18s ease-in-out infinite;
}
.orb { opacity: 0.4; }
.orb--1 { width: 340px; height: 340px; left: -6%; top: 22%;
  background: radial-gradient(circle, #d8e6f5, rgba(216,230,245,0)); }
.orb--2 { width: 280px; height: 280px; right: 6%; top: 48%;
  background: radial-gradient(circle, #cfeaf7, rgba(207,234,247,0)); animation-delay: -6s; }
.orb--3 { width: 420px; height: 420px; left: 30%; bottom: -14%;
  background: radial-gradient(circle, #e2ecf6, rgba(226,236,246,0)); animation-delay: -11s; }
@keyframes float {
  0%,100% { transform: translateY(0) translateX(0); }
  50% { transform: translateY(-34px) translateX(20px); }
}

/* ===================== Glass primitive ===================== */
.glass {
  background: var(--glass-bg);
  -webkit-backdrop-filter: blur(var(--blur)) saturate(150%);
  backdrop-filter: blur(var(--blur)) saturate(150%);
  border: 1px solid var(--glass-brd);
  box-shadow: var(--glass-shadow), inset 0 1px 0 rgba(255,255,255,0.6);
}

/* ===================== Masthead (header) ===================== */
.masthead {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.84);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid rgba(22,40,75,0.08);
  transition: box-shadow .3s ease, background .3s ease;
}
.masthead.is-scrolled {
  background: rgba(255,255,255,0.95);
  box-shadow: 0 10px 30px -18px rgba(22,40,75,0.35);
}
.masthead__inner {
  max-width: var(--maxw); margin: 0 auto;
  padding: 0 24px; height: 70px;
  display: flex; align-items: center; gap: 24px;
}

/* brand — real logo */
.brand { display: inline-flex; align-items: center; gap: 11px; flex: 0 0 auto; }
.brand__logo { height: 46px; width: auto; display: block; }
.foot .brand__logo { height: 40px; }
/* legacy two-tone wordmark (kept for fallback) */
.brand__mark {
  width: 36px; height: 36px; border-radius: 10px; display: grid; place-items: center;
  color: #fff; background: var(--grad);
  box-shadow: 0 6px 16px -8px rgba(22,40,75,.6);
}
.brand__word { font-size: 1.18rem; display: inline-flex; gap: .28em; line-height: 1; }
.brand__word b { color: var(--navy); font-weight: 800; }
.brand__word i { color: var(--green); font-weight: 700; font-style: italic; }

/* primary nav + dropdowns */
.masthead__drawer { display: flex; align-items: center; gap: 26px; margin-left: auto; }
.topnav__list { list-style: none; display: flex; align-items: center; gap: 2px; margin: 0; padding: 0; }
.topnav__item { position: relative; }
.topnav__link {
  display: inline-flex; align-items: center; gap: 5px;
  font: inherit; font-weight: 600; font-size: .95rem; color: var(--ink-soft);
  background: none; border: 0; cursor: pointer; padding: 10px 12px; border-radius: 9px;
  transition: color .2s ease, background .2s ease;
}
.topnav__link .caret { width: 11px; height: 11px; fill: none; stroke: currentColor; stroke-width: 2.4; transition: transform .25s ease; }
.topnav__link:hover, .topnav__item:hover > .topnav__link { color: var(--navy); }
.topnav__item.has-dd:hover .caret, .topnav__link[aria-expanded="true"] .caret { transform: rotate(180deg); }
.topnav__link[aria-current="page"] { color: var(--green); }

.dd {
  position: absolute; top: calc(100% + 6px); left: 0; min-width: 212px;
  display: grid; gap: 2px; padding: 8px;
  background: var(--glass-bg-strong);
  -webkit-backdrop-filter: blur(var(--blur)); backdrop-filter: blur(var(--blur));
  border: 1px solid var(--glass-brd); border-radius: 14px;
  box-shadow: var(--glass-shadow);
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s;
}
.topnav__item.has-dd:hover .dd,
.topnav__item.has-dd:focus-within .dd,
.dd.is-open { opacity: 1; visibility: visible; transform: none; }
.dd a {
  padding: 9px 12px; border-radius: 9px; font-size: .92rem; color: var(--ink-soft);
  font-weight: 500; transition: background .15s ease, color .15s ease;
}
.dd a:hover { background: rgba(0,160,224,.12); color: var(--navy); }

/* actions: dealer pill + phone */
.masthead__actions { display: flex; align-items: center; gap: 16px; }
.pill {
  padding: 9px 18px; border-radius: 999px; font-weight: 600; font-size: .9rem;
  color: var(--navy); border: 1.5px solid rgba(22,40,75,.22); white-space: nowrap;
  transition: border-color .2s ease, color .2s ease, background .2s ease;
}
.pill:hover { border-color: var(--green); color: var(--green); background: rgba(0,160,224,.06); }
.phone { display: inline-flex; align-items: center; gap: 8px; font-weight: 700; color: var(--navy); font-size: .95rem; white-space: nowrap; }
.phone svg { width: 16px; height: 16px; fill: var(--green); }
.phone:hover { color: var(--green); }

.navtoggle { display: none; }

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  padding: 12px 22px; border-radius: 999px;
  font-weight: 600; font-size: 0.95rem; cursor: pointer; border: 1px solid transparent;
  transition: transform 0.16s ease, box-shadow 0.25s ease, background 0.25s ease;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn--solid {
  background: linear-gradient(135deg, var(--navy-2), var(--navy));
  color: #fff; box-shadow: 0 12px 26px -12px rgba(22,40,75,0.75);
}
.btn--solid:hover { box-shadow: 0 16px 32px -12px rgba(22,40,75,0.85); transform: translateY(-2px); }
.btn--glass {
  background: rgba(255,255,255,0.5);
  -webkit-backdrop-filter: blur(10px); backdrop-filter: blur(10px);
  border-color: var(--glass-brd); color: var(--ink);
}
.btn--glass:hover { background: rgba(255,255,255,0.72); transform: translateY(-2px); }
.btn--ghost { color: var(--ink); border-color: rgba(45,80,120,0.25); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===================== Layout helpers ===================== */
.section { max-width: var(--maxw); margin: 0 auto; padding: 84px 24px; }
.section__head { max-width: 640px; margin: 0 auto 44px; text-align: center; }
.section__head h2, .why__head h2, .cta h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); }
.section__sub { color: var(--ink-soft); font-size: 1.05rem; margin: 12px 0 0; }
.kicker {
  font-family: "DM Sans", sans-serif; font-size: 0.74rem; letter-spacing: 0.18em;
  color: var(--accent); margin: 0 0 10px;
}

/* ===================== Hero ===================== */
.hero {
  max-width: var(--maxw); margin: 0 auto;
  padding: 70px 24px 60px;
  display: grid; grid-template-columns: 1.02fr 0.98fr;
  align-items: center; gap: 40px; min-height: 80vh;
}
.eyebrow {
  font-family: "DM Sans", sans-serif; font-size: 0.76rem; letter-spacing: 0.2em;
  color: var(--accent); margin: 0 0 18px;
}
.hero__title { font-size: clamp(2.8rem, 6.4vw, 4.8rem); font-weight: 700; }
.grad {
  background: linear-gradient(118deg, var(--navy) 0%, var(--green) 96%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.hero__lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 44ch; margin: 22px 0 30px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: 14px; }
.hero__stats {
  list-style: none; display: flex; gap: 30px; margin: 40px 0 0; padding: 26px 0 0;
  border-top: 1px solid rgba(45,80,120,0.14);
}
.hero__stats li { display: flex; flex-direction: column; }
.hero__stats strong { font-size: 1.5rem; color: var(--ink); }
.hero__stats span { font-size: 0.85rem; color: var(--muted); }

/* hero visual / 3D */
.hero__visual { position: relative; aspect-ratio: 1 / 1; min-height: 360px; }
.hero__photo {
  width: 100%; height: 100%; object-fit: cover; display: block;
  border-radius: 26px;
  box-shadow: 0 30px 70px -28px rgba(22,40,75,0.45);
  border: 1px solid rgba(255,255,255,0.7);
}
#hero-canvas {
  position: absolute; inset: 0; width: 100%; height: 100%;
  opacity: 0; transition: opacity 0.8s ease;
}
.hero__visual.threed-ready #hero-canvas { opacity: 1; }
.hero__visual.threed-ready .glass-window { opacity: 0; }

/* CSS/SVG fallback glass window */
.glass-window {
  position: absolute; inset: 12%;
  border-radius: 14px;
  border: 10px solid rgba(255,255,255,0.85);
  box-shadow: var(--glass-shadow), inset 0 0 0 2px rgba(255,255,255,0.4);
  display: grid; grid-template-columns: 1fr 1fr; gap: 10px; padding: 4px;
  background: rgba(255,255,255,0.18);
  -webkit-backdrop-filter: blur(2px); backdrop-filter: blur(2px);
  transition: opacity 0.6s ease;
  animation: floaty 7s ease-in-out infinite;
}
.glass-window__pane {
  border-radius: 6px;
  background: linear-gradient(140deg, rgba(255,255,255,0.6), rgba(216,230,245,0.3) 45%, rgba(215,238,208,0.34));
  border: 1px solid rgba(255,255,255,0.6);
}
.glass-window__glare {
  position: absolute; inset: 0; border-radius: 8px; overflow: hidden; pointer-events: none;
}
.glass-window__glare::before {
  content: ""; position: absolute; top: -40%; left: -10%;
  width: 60%; height: 180%; transform: rotate(18deg);
  background: linear-gradient(90deg, rgba(255,255,255,0), rgba(255,255,255,0.55), rgba(255,255,255,0));
  animation: glare 6s ease-in-out infinite;
}
@keyframes glare { 0%,100% { transform: translateX(-30%) rotate(18deg); } 50% { transform: translateX(220%) rotate(18deg); } }
@keyframes floaty { 0%,100% { transform: translateY(0); } 50% { transform: translateY(-12px); } }

/* ===================== Cards ===================== */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.cards--3 { grid-template-columns: repeat(3, 1fr); }
.cards--center .card { text-align: center; align-items: center; }
.cards--center .card__icon { margin-left: auto; margin-right: auto; }
.card {
  border-radius: var(--r); padding: 26px;
  transition: transform 0.18s ease, box-shadow 0.3s ease;
  transform-style: preserve-3d;
  will-change: transform;
}
.card:hover { box-shadow: 0 28px 60px -24px rgba(40,78,120,0.5); }
.card__icon {
  width: 54px; height: 54px; border-radius: 14px; margin-bottom: 16px;
  display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(22,40,75,0.10), rgba(0,160,224,0.18));
  color: var(--navy);
}
.card__icon svg { width: 30px; height: 30px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linejoin: round; stroke-linecap: round; }
.card h3 { font-size: 1.22rem; margin-bottom: 8px; }
.card p { color: var(--ink-soft); font-size: 0.96rem; margin: 0 0 16px; }
.card__link { font-weight: 600; color: var(--accent); font-size: 0.92rem; }

/* ===================== Why ===================== */
.why { border-radius: 30px; padding: 48px; display: grid; grid-template-columns: 1fr 1.1fr; gap: 40px; align-items: start; }
.why__head h2 { margin: 6px 0 14px; }
.why__list { list-style: none; margin: 0; padding: 0; display: grid; grid-template-columns: 1fr 1fr; gap: 26px 30px; }
.why__list li { position: relative; padding-top: 8px; }
.why__num { font-family: "DM Sans", sans-serif; color: var(--accent); font-size: 0.8rem; letter-spacing: 0.1em; }
.why__list h4 { font-size: 1.08rem; margin: 8px 0 6px; }
.why__list p { margin: 0; color: var(--ink-soft); font-size: 0.94rem; }

/* ===================== Gallery ===================== */
.gallery { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.gallery__item {
  border-radius: var(--r); aspect-ratio: 4 / 3;
  display: flex; align-items: flex-end; padding: 18px;
  position: relative; overflow: hidden;
  transition: transform 0.25s ease, box-shadow 0.3s ease;
}
.gallery__item:hover { transform: translateY(-5px); box-shadow: 0 26px 56px -24px rgba(40,78,120,0.5); }
.gallery__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .5s ease; }
.gallery__item:hover .gallery__img { transform: scale(1.06); }
.gallery__item::after { content: ""; position: absolute; inset: 0; background: linear-gradient(180deg, rgba(12,22,32,0) 40%, rgba(12,22,32,.74)); }
.gallery__item span { position: relative; z-index: 2; font-weight: 600; color: #fff; font-size: 0.95rem; }

/* product photo (Ürünler) */
.prodphoto { border-radius: var(--r); overflow: hidden; box-shadow: var(--glass-shadow); aspect-ratio: 4 / 3; }
.prodphoto img { width: 100%; height: 100%; object-fit: cover; display: block; }

/* color / finish swatches */
.swatches { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.swatch { border-radius: 14px; overflow: hidden; border: 1px solid rgba(22,40,75,.1); background: #fff; box-shadow: var(--glass-shadow); }
.swatch img { width: 100%; aspect-ratio: 5 / 4; object-fit: cover; display: block; }
.swatch span { display: block; padding: 11px 14px; font-weight: 600; font-size: .9rem; color: var(--navy); }

/* partner brand strip */
.brands { display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 30px 48px; }
.brands img { height: 30px; width: auto; opacity: .55; filter: grayscale(1); transition: opacity .25s ease, filter .25s ease; }
.brands img:hover { opacity: 1; filter: none; }

/* ===================== CTA ===================== */
.cta {
  position: relative; overflow: hidden;
  border-radius: 30px; padding: 60px 40px; text-align: center;
  background: var(--glass-bg-strong);
}
.cta__bloom {
  position: absolute; top: -60%; left: 50%; transform: translateX(-50%);
  width: 80%; height: 160%;
  background: radial-gradient(circle, rgba(0,160,224,0.18), rgba(0,160,224,0) 62%);
}
.cta h2 { font-size: clamp(1.9rem, 4vw, 2.8rem); position: relative; }
.cta p { color: var(--ink-soft); margin: 14px auto 26px; max-width: 46ch; position: relative; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; position: relative; }
.cta__note { font-size: 0.78rem; color: var(--muted); margin-top: 22px; }

/* ===================== Footer ===================== */
.foot { margin-top: 40px; border-top: 1px solid rgba(45,80,120,0.12); }
.foot__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 26px 24px;
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.foot__copy { color: var(--muted); font-size: 0.85rem; font-family: "DM Sans", sans-serif; }

/* ===================== Inner pages ===================== */
/* gradient sub-nav strip (breadcrumb + section tabs) */
.subnav { background: linear-gradient(95deg, var(--navy) 0%, #155b7d 52%, var(--accent) 125%); color: #fff; position: sticky; top: 70px; z-index: 30; }
.subnav__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 24px;
  min-height: 46px; display: flex; align-items: center; gap: 18px; flex-wrap: wrap;
}
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: .82rem; color: rgba(255,255,255,.82); }
.breadcrumb a { color: rgba(255,255,255,.82); }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { opacity: .55; font-style: normal; }
.subnav__tabs { display: flex; gap: 2px; margin-left: auto; flex-wrap: wrap; }
.subnav__tabs a { font-size: .84rem; font-weight: 600; color: rgba(255,255,255,.82); padding: 6px 12px; border-radius: 8px; transition: background .2s ease, color .2s ease; }
.subnav__tabs a:hover { background: rgba(255,255,255,.16); color: #fff; }
.subnav__tabs a[aria-current="true"] { background: rgba(255,255,255,.22); color: #fff; }

/* page hero */
.pagehero { max-width: var(--maxw); margin: 0 auto; padding: 60px 24px 6px; text-align: center; }
.pagehero h1 { font-size: clamp(2.1rem, 4.6vw, 3.2rem); }
.pagehero p { color: var(--ink-soft); max-width: 60ch; margin: 14px auto 0; font-size: 1.06rem; }

/* error / 404 page */
.errorpage { text-align: center; padding-top: 56px; padding-bottom: 84px; }
.errorpage__frame { max-width: 300px; margin: 0 auto 28px; }
.errorpage .kicker { text-align: center; }
.errorpage__code { font-size: clamp(4rem, 14vw, 8rem); line-height: 1; margin: 0 0 4px; }
.errorpage h2 { font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 0 0 12px; }
.errorpage .section__sub { max-width: 52ch; margin: 0 auto 28px; }
.errorpage__actions { display: flex; gap: 12px; justify-content: center; flex-wrap: wrap; }
.errorpage__code--sm { font-size: clamp(2.6rem, 7vw, 4.4rem); }
.success__mark { width: 92px; height: 92px; margin: 0 auto 22px; }
.success__mark svg { width: 100%; height: 100%; fill: none; stroke: var(--accent); stroke-width: 4; stroke-linecap: round; stroke-linejoin: round; }
.success__mark svg circle { stroke: rgba(0,160,224,.35); }

/* legal / KVKK prose */
.legal { max-width: 780px; margin: 0 auto; color: var(--ink-soft); line-height: 1.75; }
.legal__note { background: rgba(0,160,224,.08); border-left: 3px solid var(--accent); padding: 12px 16px; border-radius: 8px; font-size: .9rem; margin: 0 0 28px; }
.legal h3 { color: var(--ink); font-size: 1.15rem; margin: 26px 0 8px; }
.legal p { margin: 0 0 12px; }
.legal ul { margin: 0 0 12px; padding-left: 20px; }
.legal li { margin-bottom: 6px; }
.legal a { color: var(--accent); }

/* footer legal link */
.foot__kvkk { color: inherit; text-decoration: underline; }
.foot__kvkk:hover { color: var(--accent); }

/* generic split row (text + visual) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 44px; align-items: center; }
.split + .split { margin-top: 64px; }
.split h3 { font-size: 1.6rem; margin-bottom: 12px; }
.split p { color: var(--ink-soft); margin: 0 0 14px; }
.split ul { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.split ul li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-soft); }
.split ul li::before { content: ""; flex: 0 0 auto; width: 18px; height: 18px; margin-top: 2px; border-radius: 5px; background: linear-gradient(135deg, var(--navy), var(--green)); }

/* technical drawing card — blueprint window on grid paper */
.techcard {
  border-radius: var(--r); padding: 24px; position: relative; overflow: hidden;
  border: 1px solid rgba(22,40,75,.12);
  background:
    repeating-linear-gradient(0deg, rgba(22,40,75,.045) 0 1px, transparent 1px 24px),
    repeating-linear-gradient(90deg, rgba(22,40,75,.045) 0 1px, transparent 1px 24px),
    #fbfdff;
}
.techcard svg { width: 100%; height: auto; display: block; color: var(--navy); }
.techcard svg .accent { stroke: var(--green); }

/* badge cards (certificates) */
.badges { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }
.badge { border-radius: var(--r); padding: 26px 20px; text-align: center; }
.badge__shield {
  width: 56px; height: 56px; margin: 0 auto 14px; border-radius: 14px; display: grid; place-items: center;
  color: #fff; background: linear-gradient(140deg, var(--navy), var(--green)); font-weight: 800;
}
.badge h4 { margin: 0 0 6px; font-size: 1.05rem; }
.badge p { margin: 0; color: var(--ink-soft); font-size: .9rem; }

/* services — alternating (zigzag) timeline */
.timeline { position: relative; max-width: 960px; margin: 0 auto; }
/* central dotted spine running between the cards */
.timeline::before {
  content: ""; position: absolute; left: 50%; top: 10px; bottom: 10px;
  border-left: 3px dotted var(--accent); opacity: .5; transform: translateX(-50%);
}
.tstep { position: relative; display: flex; margin-bottom: 40px; }
.tstep:last-child { margin-bottom: 0; }
.tstep:nth-child(odd) { justify-content: flex-start; }   /* card on the left  */
.tstep:nth-child(even) { justify-content: flex-end; }    /* card on the right */

/* numbered node sitting on the spine, centered to the card */
.tstep__node {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: 56px; height: 56px; border-radius: 50%; z-index: 3;
  display: grid; place-items: center;
  color: #fff; font-weight: 800; font-size: 1.35rem;
  background: var(--grad);
  box-shadow: 0 12px 26px -12px rgba(0,160,224,.7), inset 0 1px 0 rgba(255,255,255,.4);
}

.tstep__body { position: relative; width: calc(50% - 50px); border-radius: var(--r); padding: 26px 30px; }
/* dotted stub linking each card to the central spine */
.tstep__body::after {
  content: ""; position: absolute; top: 50%; width: 50px;
  border-top: 3px dotted var(--accent); opacity: .5;
}
.tstep:nth-child(odd) .tstep__body::after { right: -50px; }
.tstep:nth-child(even) .tstep__body::after { left: -50px; }

/* slide-in motion from the card's own side */
.tstep__body.reveal { transform: translateY(16px) translateX(var(--rx, 0)); }
.tstep:nth-child(odd) .tstep__body.reveal { --rx: -34px; }
.tstep:nth-child(even) .tstep__body.reveal { --rx: 34px; }
.tstep__body.reveal.is-in { transform: none; }

.tstep__label {
  font-size: .72rem; letter-spacing: .18em; font-weight: 700; color: var(--accent);
  display: block; margin-bottom: 6px;
}
.tstep__body h3 { font-size: 1.35rem; margin-bottom: 10px; }
.tstep__body > p { color: var(--ink-soft); margin: 0 0 16px; }
.tstep__points { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; }
.tstep__points li { display: flex; gap: 10px; align-items: flex-start; color: var(--ink-soft); font-size: .95rem; }
.tstep__points li::before {
  content: ""; flex: 0 0 auto; width: 16px; height: 16px; margin-top: 3px; border-radius: 5px;
  background: var(--grad);
}

/* contact */
.contactgrid { display: grid; grid-template-columns: 1fr 1fr; gap: 30px; align-items: start; }
.field { margin-bottom: 16px; }
.field label { display: block; font-weight: 600; font-size: .9rem; margin-bottom: 6px; }
.field input, .field textarea {
  width: 100%; min-width: 0; font: inherit; color: var(--ink);
  background: rgba(255,255,255,.7); border: 1px solid rgba(22,40,75,.16);
  border-radius: 10px; padding: 11px 13px;
}
.field textarea { min-height: 120px; resize: vertical; }
.field input:focus, .field textarea:focus { outline: 2px solid var(--green); border-color: var(--green); }
.info-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.info-list li { display: flex; gap: 12px; align-items: flex-start; }
.info-list .ico { flex: 0 0 auto; width: 40px; height: 40px; border-radius: 11px; display: grid; place-items: center; color: #fff; background: linear-gradient(140deg, var(--navy), var(--green)); }
.info-list .ico svg { width: 18px; height: 18px; fill: currentColor; }
.info-list b { display: block; color: var(--navy); }
.info-list span { color: var(--ink-soft); font-size: .95rem; }

/* ===================== Reveal animation ===================== */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.is-in { opacity: 1; transform: none; }

/* ===================== Responsive ===================== */
@media (max-width: 920px) {
  .hero { grid-template-columns: 1fr; text-align: center; padding-top: 40px; }
  .hero__copy { display: flex; flex-direction: column; align-items: center; }
  .hero__lede { max-width: 56ch; }
  .hero__cta, .hero__stats { justify-content: center; }
  .hero__visual { order: -1; width: min(420px, 86vw); margin: 0 auto; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .why { grid-template-columns: 1fr; padding: 34px; }
  .gallery { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 28px; }
  .split .techcard { order: -1; }
  .badges { grid-template-columns: repeat(2, 1fr); }
  .swatches { grid-template-columns: repeat(2, 1fr); }
  .contactgrid { grid-template-columns: 1fr; }
  .subnav { top: 0; }
}

@media (max-width: 940px) {
  .masthead__inner { position: relative; }
  .navtoggle {
    display: inline-flex; flex-direction: column; gap: 5px; margin-left: auto;
    background: none; border: 0; cursor: pointer; padding: 8px;
  }
  .navtoggle span { width: 24px; height: 2px; background: var(--navy); border-radius: 2px; transition: 0.25s; }
  .navtoggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .navtoggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
  .navtoggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* drawer becomes a dropdown panel */
  .masthead__drawer {
    position: absolute; top: 100%; left: 0; right: 0; margin: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px 18px 18px;
    background: var(--glass-bg-strong);
    -webkit-backdrop-filter: blur(var(--blur)); backdrop-filter: blur(var(--blur));
    border-bottom: 1px solid var(--glass-brd);
    box-shadow: var(--glass-shadow);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity .25s ease, transform .25s ease, visibility .25s;
  }
  .masthead.is-open .masthead__drawer { transform: none; opacity: 1; visibility: visible; }

  .topnav { width: 100%; }
  .topnav__list { flex-direction: column; align-items: stretch; gap: 0; }
  .topnav__item { border-bottom: 1px solid rgba(22,40,75,0.08); }
  .topnav__link { width: 100%; justify-content: space-between; padding: 14px 6px; font-size: 1rem; }

  /* dropdowns: click-to-open accordions on mobile */
  .dd {
    position: static; opacity: 1; visibility: visible; transform: none;
    display: none; min-width: 0; padding: 2px 0 8px; margin: 0;
    background: none; border: 0; box-shadow: none;
    -webkit-backdrop-filter: none; backdrop-filter: none;
  }
  .dd.is-open { display: grid; }
  .dd a { padding: 11px 14px; }

  .masthead__actions { width: 100%; justify-content: space-between; padding-top: 14px; }
}

@media (max-width: 560px) {
  .section { padding: 60px 20px; }
  .cards { grid-template-columns: 1fr; }
  .why__list { grid-template-columns: 1fr; }
  .hero__stats { gap: 20px; }
  .cta { padding: 44px 22px; }
  .badges { grid-template-columns: 1fr; }
  .subnav__tabs { display: none; }
}

/* timeline collapses to a single left-spine column on narrow screens */
@media (max-width: 760px) {
  .timeline::before { left: 25px; }
  .tstep:nth-child(odd), .tstep:nth-child(even) { justify-content: flex-end; }
  .tstep__node { left: 25px; width: 50px; height: 50px; font-size: 1.15rem; }
  .tstep__body { width: calc(100% - 64px); padding: 20px 20px; }
  .tstep:nth-child(odd) .tstep__body::after,
  .tstep:nth-child(even) .tstep__body::after { left: -38px; right: auto; width: 38px; }
  .tstep:nth-child(odd) .tstep__body.reveal,
  .tstep:nth-child(even) .tstep__body.reveal { --rx: 26px; }
}

@media (prefers-reduced-motion: reduce) {
  .orb, .scene__bloom, .glass-window, .glass-window__glare::before { animation: none; }
  .reveal { transition: none; opacity: 1; transform: none; }
  html { scroll-behavior: auto; }
}


/* ===================== Rakamlar / İstatistik ===================== */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 26px; max-width: var(--maxw); margin: 0 auto; }
.stat { text-align: center; padding: 6px 10px; }
.stat__num { font-family: "Playfair Display", Georgia, "Times New Roman", serif; font-size: clamp(3rem, 5.8vw, 4.8rem); font-weight: 600; letter-spacing: 0; line-height: 1; background: var(--grad); -webkit-background-clip: text; background-clip: text; color: transparent; }
.stat__u { font-family: "Playfair Display", Georgia, serif; font-size: 0.46em; font-weight: 600; vertical-align: super; margin-left: 3px; -webkit-text-fill-color: var(--accent); }
.stat__label { font-family: "Playfair Display", Georgia, serif; margin-top: 16px; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: var(--navy); font-size: 1.02rem; }
.stat__desc { font-family: "Playfair Display", Georgia, serif; margin: 12px auto 0; color: var(--ink-soft); font-size: 1.04rem; max-width: 27ch; }
@media (max-width: 820px) { .stats { grid-template-columns: 1fr 1fr; gap: 44px 22px; } }
@media (max-width: 520px) { .stats { grid-template-columns: 1fr; gap: 48px; } }