/* Realpower — realpowerauto.com
   Renkler ürün kutusundan: mat siyah zemin, beyaz yazı, ters (beyaz) etiketler
   ve parçalardaki keçe turkuazı. */

:root {
  --bg: #09090a;
  --bg-2: #0e0f11;
  --panel: #131416;
  --panel-2: #1a1c1f;
  --line: rgba(255, 255, 255, .1);
  --line-2: rgba(255, 255, 255, .22);
  --text: #f5f6f7;
  --steel: #c7ccd3;
  --muted: #8e959e;
  --ink: #0a0a0b;
  --teal: #19c8b4;
  --teal-2: #45e8d2;
  --flow: linear-gradient(100deg, #45e8d2 0%, #19c8b4 50%, #2aa3ff 100%);
  --display: "Montserrat", "Segoe UI", system-ui, sans-serif;
  --body: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --logo: "Kanit", "Segoe UI", system-ui, sans-serif;
  --wrap: 1240px;
  --ease: cubic-bezier(.2, .7, .1, 1);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 400 17px/1.65 var(--body);
  overflow-x: hidden;
  overflow-x: clip; /* hidden yerine clip: sticky bölümü bozmaz */
  -webkit-font-smoothing: antialiased;
}
/* Mat kutu dokusu */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 90;
  pointer-events: none;
  opacity: .055;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, p { margin: 0; }
button { font: inherit; color: inherit; }
:focus-visible { outline: 2px solid var(--teal-2); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--teal); color: var(--ink); }

.wrap { width: min(var(--wrap), 100% - 48px); margin-inline: auto; }
section { position: relative; padding: clamp(80px, 10vw, 140px) 0; scroll-margin-top: 70px; }
.thin { font-weight: 300; }

/* ---------- Logo (kutudaki yazı logosu) ---------- */
.logo {
  display: inline-block;
  font: italic 600 30px/1 var(--logo);
  letter-spacing: 0;
  white-space: nowrap;
  color: inherit;
}
/* "p": sapı kırpılmış harf + şimşek + "l"nin ayağı. Birimler 1/1000 em. */
.logo__lp {
  display: inline-block;
  width: .77em;
  height: 1.01em;
  margin: 0 -.021em 0 -.15em;
  vertical-align: -.24em;
  overflow: visible;
  fill: currentColor;
}
.logo sup {
  position: relative;
  top: -1.9em;
  margin-left: .25em;
  font: 600 .18em/1 var(--body);
  vertical-align: baseline;
}

/* ---------- Kutudaki etiket dili ---------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font: 700 12.5px/1 var(--display);
  letter-spacing: .26em;
  text-transform: uppercase;
  color: var(--steel);
}
.tag b, .chip-inv {
  padding: 6px 9px 6px 11px;
  background: #fff;
  color: var(--ink);
  font: 800 11.5px/1 var(--display);
  letter-spacing: .2em;
  text-transform: uppercase;
}
.chip-line {
  padding: 5px 9px 5px 11px;
  border: 1px solid var(--teal);
  color: var(--teal-2);
  font: 700 11.5px/1 var(--display);
  letter-spacing: .16em;
  text-transform: uppercase;
}

/* ---------- Kaydırma ile beliren öğeler ---------- */
.js [data-reveal] {
  opacity: 0;
  translate: 0 30px;
  transition: opacity .9s var(--ease), translate .9s var(--ease);
  transition-delay: var(--d, 0s);
}
.js [data-reveal].is-in { opacity: 1; translate: 0 0; }

/* ---------- Sabit katmanlar ---------- */
.progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 3px;
  z-index: 60;
  background: var(--flow);
  transform: scaleX(0);
  transform-origin: left;
}
.glow {
  position: fixed;
  left: -260px;
  top: -260px;
  width: 520px;
  height: 520px;
  z-index: 1;
  border-radius: 50%;
  pointer-events: none;
  background: radial-gradient(circle, rgba(25, 200, 180, .1), transparent 62%);
  opacity: 0;
  transition: opacity .6s;
  will-change: transform;
}
.glow.is-on { opacity: 1; }
main, .footer { position: relative; z-index: 2; }

/* ---------- Üst menü ---------- */
.header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  height: 76px;
  display: flex;
  align-items: center;
}
/* Bulanıklık sözde-öğede: header'ın kendisine verilseydi içindeki tam ekran
   mobil menü (position: fixed) header kutusuna hapsolurdu. */
.header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  background: rgba(9, 9, 10, .74);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom: 1px solid var(--line);
  opacity: 0;
  transition: opacity .35s;
}
.header.is-scrolled::before { opacity: 1; }
.header .wrap { display: flex; align-items: center; justify-content: space-between; gap: 24px; }
.header .logo { position: relative; z-index: 2; font-size: 31px; color: #fff; transition: color .3s; }
.header .logo:hover { color: var(--teal-2); }

.nav { display: flex; align-items: center; gap: 32px; }
.nav a:not(.btn) {
  position: relative;
  padding: 8px 0;
  font: 600 13px/1 var(--display);
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--steel);
  transition: color .2s;
}
.nav a:not(.btn)::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 2px;
  background: var(--teal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.nav a:not(.btn):hover { color: #fff; }
.nav a:not(.btn):hover::after { transform: scaleX(1); }

.burger {
  display: none;
  position: relative;
  z-index: 2;
  width: 46px;
  height: 46px;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: none;
  cursor: pointer;
}
.burger span {
  position: absolute;
  left: 13px;
  right: 13px;
  height: 2px;
  background: #fff;
  transition: transform .35s var(--ease), top .35s var(--ease);
}
.burger span:nth-child(1) { top: 18px; }
.burger span:nth-child(2) { top: 26px; }
.nav-open .burger span:nth-child(1) { top: 22px; transform: rotate(45deg); }
.nav-open .burger span:nth-child(2) { top: 22px; transform: rotate(-45deg); }

/* ---------- Düğmeler ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 18px 28px;
  border: 0;
  border-radius: 999px;
  background: #fff;
  color: var(--ink);
  font: 700 13.5px/1 var(--display);
  letter-spacing: .09em;
  text-transform: uppercase;
  cursor: pointer;
  transition: transform .3s var(--ease), background .25s, box-shadow .3s;
  will-change: transform;
}
.btn:hover { background: var(--teal-2); box-shadow: 0 14px 44px -12px rgba(69, 232, 210, .7); }
.btn svg { width: 17px; height: 17px; transition: transform .3s var(--ease); }
.btn:hover svg { transform: translateX(4px); }
.btn--ghost { background: transparent; color: #fff; box-shadow: inset 0 0 0 1.5px var(--line-2); }
.btn--ghost:hover { background: transparent; box-shadow: inset 0 0 0 1.5px var(--teal-2); color: var(--teal-2); }
.btn--sm { padding: 13px 20px; font-size: 12px; }

/* ---------- Hero ---------- */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 104px 0 76px;
  overflow: hidden;
  isolation: isolate;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -4;
  background:
    radial-gradient(56% 55% at 76% 46%, rgba(25, 200, 180, .16), transparent 70%),
    radial-gradient(40% 40% at 10% 92%, rgba(42, 163, 255, .08), transparent 70%);
}
.hero__grid {
  position: absolute;
  inset: 0;
  z-index: -3;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  -webkit-mask-image: radial-gradient(70% 70% at 70% 45%, #000 0%, transparent 75%);
  mask-image: radial-gradient(70% 70% at 70% 45%, #000 0%, transparent 75%);
  opacity: .5;
}
.hero__canvas {
  position: absolute;
  inset: 0;
  z-index: -2;
  width: 100%;
  height: 100%;
  opacity: 0;
  transition: opacity 1.4s ease;
}
.webgl-ready .hero__canvas { opacity: calc(1 - var(--hero-p, 0) * .9); }
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    linear-gradient(90deg, rgba(9, 9, 10, .92) 0%, rgba(9, 9, 10, .5) 36%, transparent 60%),
    linear-gradient(0deg, var(--bg) 0%, transparent 24%);
}

/* WebGL açılamazsa devreye giren düz dişliler */
.hero__fallback { position: absolute; inset: 0; z-index: -2; opacity: 0; transition: opacity 1s; }
.no-webgl .hero__fallback { opacity: .55; }
.hero__fallback svg { position: absolute; overflow: visible; animation: spin 26s linear infinite; }
.hero__fallback svg:nth-child(1) { width: min(54vw, 620px); right: -6%; top: 12%; }
.hero__fallback svg:nth-child(2) { width: min(26vw, 300px); right: 34%; top: 54%; animation-duration: 13s; animation-direction: reverse; }
.hero__fallback svg:nth-child(3) { width: min(20vw, 230px); right: 4%; top: 68%; animation-duration: 10s; animation-direction: reverse; }
@keyframes spin { to { transform: rotate(360deg); } }

.hero__content { max-width: 780px; }
.slogan {
  display: flex;
  align-items: center;
  gap: .5em;
  font: 600 clamp(19px, 1.7vw, 25px)/1 var(--logo);
}
.slogan__chip { padding: .3em .55em .32em .5em; background: #fff; color: var(--ink); }
.slogan .logo { font-size: 1.22em; }

.hero h1 {
  margin: 26px 0 24px;
  /* vh sınırı: kısa ekranlarda sayaçlar da ilk ekrana sığsın */
  font: 800 clamp(40px, min(7vw, 12.5vh), 98px)/.98 var(--display);
  letter-spacing: -.025em;
  text-transform: uppercase;
}
/* Satır kutusu harf maskesidir; dolgu Ç/Ü/Ş işaretlerinin kırpılmasını önler. */
.hero h1 .line { display: block; overflow: hidden; padding: .16em .04em .2em 0; margin: -.16em 0 -.2em; }
.hero h1 .line > span { display: inline-block; }
.hero h1 i { font-style: normal; color: var(--teal); }
.js .hero h1 .line > span { transform: translateY(125%); transition: transform 1.15s var(--ease); }
.js .hero h1 .line:nth-child(2) > span { transition-delay: .13s; }
.js.is-loaded .hero h1 .line > span { transform: none; }

.lead { max-width: 58ch; font-size: clamp(16.5px, 1.3vw, 19px); color: var(--steel); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.stats {
  display: flex;
  gap: clamp(22px, 3.6vw, 54px);
  margin-top: clamp(24px, 4.5vh, 60px);
  padding-top: clamp(18px, 3vh, 28px);
  border-top: 1px solid var(--line);
  max-width: 660px;
}
.stat b { display: block; font: 800 clamp(24px, min(2.6vw, 4.6vh), 38px)/1.1 var(--display); letter-spacing: -.01em; font-variant-numeric: tabular-nums; }
.stat span { display: block; margin-top: 6px; font: 600 11.5px/1.3 var(--display); letter-spacing: .14em; text-transform: uppercase; color: var(--muted); }

.scroll-hint {
  position: absolute;
  left: 50%;
  bottom: 22px;
  transform: translateX(-50%);
  display: grid;
  justify-items: center;
  gap: 10px;
  font: 600 10.5px/1 var(--display);
  letter-spacing: .3em;
  text-transform: uppercase;
  color: var(--muted);
}
.scroll-hint i { width: 1px; height: 40px; background: linear-gradient(var(--teal), transparent); animation: drip 2s var(--ease) infinite; transform-origin: top; }
@keyframes drip { 0% { transform: scaleY(0); } 60% { transform: scaleY(1); opacity: 1; } 100% { transform: scaleY(1); opacity: 0; } }

/* ---------- Kayan şerit ---------- */
.marquee {
  position: relative;
  z-index: 2;
  padding: 22px 0;
  overflow: hidden;
  background: #fff;
  color: var(--ink);
}
.marquee__track {
  display: flex;
  width: max-content;
  font: 800 clamp(15px, 1.5vw, 20px)/1 var(--display);
  letter-spacing: .2em;
  text-transform: uppercase;
  white-space: nowrap;
  animation: marquee 46s linear infinite;
}
.marquee__track span { display: inline-flex; align-items: center; }
.marquee__track svg { width: .6em; height: 1.5em; margin: 0 1.6em; fill: currentColor; }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Bölüm başlığı ---------- */
.section-head { max-width: 860px; margin-bottom: clamp(44px, 6vw, 84px); }
.section-head h2, .cta h2 {
  margin: 22px 0 20px;
  font: 800 clamp(31px, 4.5vw, 62px)/1.04 var(--display);
  letter-spacing: -.025em;
  text-transform: uppercase;
}
.section-head p { max-width: 62ch; font-size: clamp(16.5px, 1.25vw, 19px); color: var(--muted); }

/* Kutudaki parlak dişli çizimlerine gönderme */
.deco-gear { position: absolute; z-index: -1; pointer-events: none; fill: none; stroke: rgba(255, 255, 255, .07); stroke-width: .6; animation: spin 120s linear infinite; }
.deco-gear--a { width: min(70vw, 760px); right: -18%; top: 4%; }
.deco-gear--b { width: 520px; right: -150px; bottom: -220px; z-index: 0; stroke: rgba(255, 255, 255, .1); animation-duration: 80s; }

/* ---------- Ürünler ---------- */
.products { overflow: hidden; overflow: clip; }
.product-list { display: grid; gap: clamp(72px, 10vw, 150px); }
.product { display: grid; grid-template-columns: 1.12fr 1fr; gap: clamp(30px, 5.5vw, 90px); align-items: center; }
.product:nth-child(even) .product__media { order: 2; }

.product__media { position: relative; perspective: 1400px; }
.product__media::before {
  content: "";
  position: absolute;
  inset: 8% -4% -6% 10%;
  z-index: -1;
  background: var(--flow);
  filter: blur(70px);
  opacity: .16;
  transition: opacity .5s;
}
.product:nth-child(even) .product__media::before { inset: 8% 10% -6% -4%; }
.product:hover .product__media::before { opacity: .3; }
.product__main {
  display: block;
  position: relative;
  width: 100%;
  padding: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 22px;
  background: var(--panel-2);
  aspect-ratio: 4 / 3;
  cursor: zoom-in;
  transform: rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
  transition: transform .6s var(--ease), border-color .3s;
}
.product__main:hover { border-color: rgba(69, 232, 210, .55); transition-duration: .12s, .3s; }
.product__main img { width: 100%; height: 100%; object-fit: cover; transition: scale 1.1s var(--ease), opacity .25s; }
.product__main:hover img { scale: 1.045; }
.product__main.is-swapping img { opacity: 0; }
/* Fotoğraf, kaydırınca perde gibi açılır */
.js .product__media[data-reveal] .product__main { clip-path: inset(0 0 100% 0 round 22px); transition: clip-path 1.2s var(--ease), transform .6s var(--ease), border-color .3s; }
.js .product__media.is-in .product__main { clip-path: inset(0 0 0 0 round 22px); }
.product__zoom {
  position: absolute;
  right: 14px;
  bottom: 14px;
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: rgba(9, 9, 10, .7);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: #fff;
  opacity: 0;
  transition: opacity .3s;
}
.product__zoom svg { width: 18px; height: 18px; }
.product__main:hover .product__zoom { opacity: 1; }

.product__thumbs { display: flex; gap: 10px; margin-top: 12px; }
.thumb {
  width: 84px;
  padding: 0;
  overflow: hidden;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  background: var(--panel-2);
  aspect-ratio: 4 / 3;
  cursor: pointer;
  opacity: .55;
  transition: opacity .25s, border-color .25s;
}
.thumb img { width: 100%; height: 100%; object-fit: cover; }
.thumb:hover { opacity: 1; }
.thumb.is-active { opacity: 1; border-color: var(--teal-2); }

.product__body { position: relative; }
.product__no {
  display: block;
  margin-bottom: 18px;
  font: 800 clamp(56px, 7vw, 104px)/.8 var(--display);
  letter-spacing: -.04em;
  color: transparent;
  -webkit-text-stroke: 1px rgba(255, 255, 255, .2);
}
.product__label { display: flex; flex-wrap: wrap; gap: 8px; }
.product h3 { margin: 18px 0 8px; font: 800 clamp(26px, 2.9vw, 42px)/1.08 var(--display); letter-spacing: -.02em; }
.product__en { font: 600 12.5px/1.4 var(--display); letter-spacing: .2em; text-transform: uppercase; color: var(--teal-2); }
.product__desc { margin-top: 18px; max-width: 52ch; color: var(--steel); }
.product__points { display: grid; gap: 10px; margin: 22px 0 30px; padding: 0; list-style: none; }
.product__points li { display: flex; align-items: center; gap: 12px; font-size: 15.5px; color: var(--text); }
.product__points svg { flex: none; width: 9px; height: 22px; fill: var(--teal-2); }

/* ---------- Kinetik yazı ---------- */
.band { position: relative; z-index: 2; padding: clamp(30px, 5vw, 70px) 0; overflow: hidden; }
.band__row { white-space: nowrap; will-change: transform; }
.band__row--logo { font: italic 600 clamp(64px, 12vw, 190px)/1.1 var(--logo); }
.band__row--stroke {
  margin-left: -40vw;
  font: 800 clamp(54px, 10vw, 160px)/1.05 var(--display);
  letter-spacing: -.02em;
  text-transform: uppercase;
  color: transparent;
  -webkit-text-stroke: 1.5px rgba(255, 255, 255, .22);
}

/* ---------- Neden Realpower ---------- */
.why { background: var(--bg-2); border-block: 1px solid var(--line); }
.why__grid { display: grid; grid-template-columns: 1fr 1.05fr; gap: clamp(40px, 6vw, 100px); align-items: start; }
.why__visual { align-self: stretch; }
.why__sticky { position: sticky; top: 120px; display: grid; place-items: center; max-width: 520px; aspect-ratio: 1; }
.why__gear { position: absolute; inset: 0; width: 100%; height: 100%; will-change: transform; }
.why__gear .g-body { fill: none; stroke: url(#why-grad); stroke-width: 1.4; }
.why__gear .g-ring { fill: none; stroke: rgba(255, 255, 255, .14); stroke-width: 1; }
.why__gear .g-dash { fill: none; stroke: rgba(255, 255, 255, .3); stroke-width: 1; stroke-dasharray: 2 6; }
.why__num { position: relative; display: flex; align-items: baseline; gap: 10px; font: 800 clamp(80px, 9.5vw, 150px)/1 var(--display); letter-spacing: -.04em; }
.why__num span { display: inline-block; background: var(--flow); -webkit-background-clip: text; background-clip: text; color: transparent; }
.why__num span.is-tick { animation: tick .5s var(--ease); }
.why__num small { font: 600 14px/1 var(--display); letter-spacing: .14em; color: var(--muted); }
@keyframes tick { from { opacity: 0; transform: translateY(.25em); } }
.why__steps .section-head { margin-bottom: clamp(24px, 3vw, 44px); }
.why__step { padding: 34px 0; border-top: 1px solid var(--line); opacity: .32; transition: opacity .45s; }
.why__step.is-active { opacity: 1; }
.why__step h3 { margin-bottom: 12px; font: 800 clamp(21px, 2vw, 29px)/1.12 var(--display); letter-spacing: -.01em; text-transform: uppercase; }
.why__step p { max-width: 52ch; color: var(--steel); }

/* ---------- Bayi çağrısı ---------- */
.cta-sec { padding-bottom: 0; }
.cta { position: relative; overflow: hidden; border: 1px solid var(--line-2); border-radius: 30px; background: #0c0d0e; isolation: isolate; }
.cta::before {
  content: "";
  position: absolute;
  inset: -60%;
  z-index: -1;
  background: conic-gradient(from 0deg, transparent 0 58%, rgba(69, 232, 210, .55), rgba(42, 163, 255, .5), transparent 92%);
  filter: blur(80px);
  animation: spin 12s linear infinite;
}
.cta__in { position: relative; z-index: 1; padding: clamp(38px, 6vw, 88px); }
.cta h2 { margin-top: 24px; }
.cta p { max-width: 58ch; font-size: clamp(16.5px, 1.25vw, 19px); color: var(--steel); }

/* ---------- İletişim ---------- */
.contact { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
.contact__card {
  display: grid;
  gap: 10px;
  align-content: start;
  padding: 28px 24px;
  border: 1px solid var(--line);
  border-radius: 20px;
  background: var(--panel);
  transition: border-color .3s, transform .4s var(--ease), opacity .9s var(--ease), translate .9s var(--ease);
  transition-delay: 0s, 0s, var(--d, 0s), var(--d, 0s);
}
a.contact__card:hover { border-color: rgba(69, 232, 210, .6); transform: translateY(-6px); }
.contact__card small { font: 700 11px/1 var(--display); letter-spacing: .24em; text-transform: uppercase; color: var(--teal-2); }
.contact__card strong { font: 700 clamp(17px, 1.45vw, 21px)/1.2 var(--display); letter-spacing: -.01em; overflow-wrap: anywhere; }
.contact__card span { font-size: 14.5px; color: var(--muted); }

/* ---------- Footer ---------- */
.footer { padding: 60px 0 40px; border-top: 1px solid var(--line); background: var(--bg-2); }
.footer__top { display: flex; flex-wrap: wrap; align-items: flex-start; justify-content: space-between; gap: 30px; }
.footer .logo { font-size: 34px; }
.footer__top p { margin-top: 14px; font-size: 15px; color: var(--muted); }
.footer nav { display: flex; flex-wrap: wrap; gap: 12px 28px; font: 600 12.5px/1.4 var(--display); letter-spacing: .1em; text-transform: uppercase; color: var(--steel); }
.footer nav a:hover { color: var(--teal-2); }
.footer__fine { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 10px 30px; margin-top: 40px; padding-top: 24px; border-top: 1px solid var(--line); font-size: 13px; color: var(--muted); }

/* ---------- WhatsApp düğmesi ---------- */
.fab {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 40;
  display: grid;
  place-items: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 14px 34px -10px rgba(37, 211, 102, .7);
  transition: transform .3s var(--ease);
}
.fab::before { content: ""; position: absolute; inset: 0; border-radius: 50%; box-shadow: 0 0 0 0 rgba(37, 211, 102, .55); animation: pulse 2.4s infinite; }
.fab:hover { transform: scale(1.1); }
.fab svg { width: 28px; height: 28px; }
@keyframes pulse { 70% { box-shadow: 0 0 0 18px rgba(37, 211, 102, 0); } 100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); } }

/* ---------- Fotoğraf büyütme ---------- */
.lightbox {
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  max-width: none;
  max-height: none;
  margin: 0;
  padding: 0;
  border: 0;
  background: rgba(5, 5, 6, .95);
  color: #fff;
}
.lightbox[open] { display: grid; place-items: center; animation: fade .3s ease; }
.lightbox::backdrop { background: transparent; }
.lightbox img { max-width: min(94vw, 1500px); max-height: 88vh; border-radius: 14px; }
.lightbox button {
  position: absolute;
  display: grid;
  place-items: center;
  width: 50px;
  height: 50px;
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: 50%;
  background: rgba(9, 9, 10, .7);
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.lightbox button:hover { border-color: var(--teal-2); color: var(--teal-2); }
.lightbox button svg { width: 22px; height: 22px; }
.lightbox__close { top: 18px; right: 18px; }
.lightbox__prev { left: 18px; top: 50%; translate: 0 -50%; }
.lightbox__next { right: 18px; top: 50%; translate: 0 -50%; }
.lightbox.is-single .lightbox__nav { display: none; }
@keyframes fade { from { opacity: 0; } }

/* ---------- Duyarlı düzen ---------- */
@media (max-width: 1024px) {
  .contact { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .burger { display: block; }
  .nav {
    position: fixed;
    inset: 0;
    z-index: 1;
    flex-direction: column;
    justify-content: center;
    gap: 30px;
    background: rgba(9, 9, 10, .97);
    visibility: hidden;
    opacity: 0;
    transition: opacity .35s, visibility .35s;
  }
  .nav-open .nav { visibility: visible; opacity: 1; }
  .nav a:not(.btn) { font: 800 28px/1 var(--display); letter-spacing: -.01em; color: #fff; }
  .nav .btn { margin-top: 10px; padding: 18px 30px; font-size: 13.5px; }

  .hero { align-items: flex-end; padding-bottom: 96px; }
  .webgl-ready .hero__canvas { opacity: calc(.7 - var(--hero-p, 0) * .7); }
  .hero::after {
    background: linear-gradient(0deg, var(--bg) 0%, rgba(9, 9, 10, .88) 52%, rgba(9, 9, 10, .3) 82%, transparent 100%);
  }
  .hero__grid { -webkit-mask-image: radial-gradient(90% 50% at 60% 25%, #000 0%, transparent 75%); mask-image: radial-gradient(90% 50% at 60% 25%, #000 0%, transparent 75%); }
  .scroll-hint { display: none; }

  .product { grid-template-columns: 1fr; }
  .product:nth-child(even) .product__media { order: 0; }
  .product__no { margin-bottom: 14px; }

  .why__grid { grid-template-columns: 1fr; }
  .why__visual { display: none; }
  .why__step { opacity: 1; }
}

/* Kısa masaüstü ekranları (ör. 1366×768 dizüstü) */
@media (min-width: 901px) and (max-height: 720px) {
  .hero { padding: 92px 0 48px; }
  .hero h1 { margin: 20px 0 18px; }
  .lead { font-size: 16px; }
  .hero__actions { margin-top: 22px; }
  .hero .btn { padding: 15px 24px; }
  .scroll-hint { display: none; }
}

@media (max-width: 640px) {
  body { font-size: 16px; }
  .wrap { width: min(var(--wrap), 100% - 36px); }
  .header .logo { font-size: 28px; }
  .contact { grid-template-columns: 1fr; }
  .stats { gap: 16px; }
  .stat b { font-size: clamp(18px, 5.4vw, 23px); }
  .stat span { font-size: 10px; letter-spacing: .1em; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; }
  .thumb { width: 72px; }
  .cta { border-radius: 24px; }
  .lightbox__prev { left: 8px; }
  .lightbox__next { right: 8px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js [data-reveal] { opacity: 1; translate: 0 0; }
  .js .hero h1 .line > span { transform: none; }
  .js .product__media[data-reveal] .product__main { clip-path: none; }
}