/* ==========================================================
   Sidefer — site stilleri
   ========================================================== */
:root {
  --red: #d61f2c;
  --red-deep: #a8131e;
  --red-soft: #fdecee;
  --ink: #232327;
  --ink-2: #55565c;
  --muted: #8a8b92;
  --line: #ececef;
  --bg: #ffffff;
  --tint: #f7f6f4;
  --radius: 18px;
  --shadow: 0 20px 50px -24px rgba(35, 20, 22, .28);
  --serif: "Fraunces", Georgia, serif;
  --sans: "Plus Jakarta Sans", system-ui, -apple-system, sans-serif;
  --header-h: 76px;
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--bg);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}
img, svg, video { display: block; max-width: 100%; }
a { color: inherit; }
h1, h2, h3, h4 { line-height: 1.15; margin: 0 0 .5em; font-weight: 700; letter-spacing: -.015em; }
h1 em, h2 em { font-family: var(--serif); font-style: italic; font-weight: 400; color: var(--red); }
p { margin: 0 0 1em; }
main { overflow-x: clip; } /* dönen dekorların yatay taşmasını engeller; sticky'yi bozmaz */

.container { width: min(1200px, 100% - 32px); margin-inline: auto; }
.narrow { width: min(760px, 100% - 32px); }
.center { text-align: center; }
.muted { color: var(--muted); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .5em;
  padding: .9em 1.6em; border-radius: 999px;
  font-weight: 700; font-size: .95rem; text-decoration: none;
  border: 2px solid transparent; cursor: pointer;
  transition: transform .2s, background .2s, color .2s, box-shadow .2s;
  font-family: inherit;
}
.btn:hover { transform: translateY(-2px); }
.btn-sm { padding: .55em 1.2em; font-size: .9rem; }
.btn-red { background: var(--red); color: #fff; box-shadow: 0 10px 24px -12px var(--red); }
.btn-red:hover { background: var(--red-deep); }
.btn-white { background: #fff; color: var(--red); }
.btn-ghost { border-color: rgba(255,255,255,.6); color: #fff; }
.btn-ghost:hover { background: rgba(255,255,255,.12); }

.link-arrow { font-weight: 700; color: var(--red); text-decoration: none; display: inline-flex; gap: .4em; }
.link-arrow span { transition: transform .2s; }
.link-arrow:hover span { transform: translateX(4px); }

.eyebrow {
  display: inline-block; font-size: .75rem; font-weight: 800; letter-spacing: .14em;
  text-transform: uppercase; color: var(--red); margin-bottom: .8em;
}

/* ---------- Logo ---------- */
.logo { display: inline-flex; align-items: center; text-decoration: none; font-weight: 800; font-size: 1.7rem; letter-spacing: -.03em; line-height: 1; }
.logo-side { color: #5a5b60; }
.logo-fer { color: var(--red); }
.logo-mark { width: 1.15em; height: 1.15em; color: var(--red); margin-left: .1em; }
.logo-light .logo-side { color: #fff; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.92);
  backdrop-filter: saturate(1.4) blur(12px);
  border-bottom: 1px solid var(--line);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.site-nav { display: flex; align-items: center; gap: 2rem; }
.site-nav a:not(.btn) { text-decoration: none; font-weight: 600; font-size: .95rem; color: var(--ink-2); position: relative; }
.site-nav a:not(.btn)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -6px; height: 2px;
  background: var(--red); transform: scaleX(0); transition: transform .25s;
}
.site-nav a:not(.btn):hover, .site-nav a[aria-current] { color: var(--ink); }
.site-nav a:not(.btn):hover::after, .site-nav a[aria-current]::after { transform: scaleX(1); }
.nav-toggle { display: none; background: none; border: 0; width: 40px; height: 40px; cursor: pointer; position: relative; }
.nav-toggle span { position: absolute; left: 9px; right: 9px; height: 2px; background: var(--ink); transition: transform .25s, top .25s; }
.nav-toggle span:first-child { top: 15px; }
.nav-toggle span:last-child { top: 23px; }
.nav-open .nav-toggle span:first-child { top: 19px; transform: rotate(45deg); }
.nav-open .nav-toggle span:last-child { top: 19px; transform: rotate(-45deg); }

/* ==========================================================
   HERO — kutu tasarımı: solda kırmızı şerit, sağda 3D demir ikonu
   ========================================================== */
.hero {
  --stripe: clamp(48px, 9vw, 150px);
  position: relative;
  min-height: max(640px, calc(100svh - var(--header-h)));
  display: flex; align-items: center;
  overflow: hidden;
  isolation: isolate;
  /* video yokken görünen zemin */
  /* aydınlık stüdyo zemini: beyaz, ipeksi ışık geçişleri */
  background:
    linear-gradient(115deg, transparent 38%, rgba(255,255,255,.9) 46%, transparent 54%),
    linear-gradient(125deg, transparent 58%, rgba(255,255,255,.7) 64%, transparent 70%),
    radial-gradient(70% 80% at 68% 45%, #ffffff 0%, #f4f1f1 55%, #e7e1e1 100%),
    #f4f1f1;
  color: var(--ink);
}
.hero-video {
  position: absolute; inset: 0; width: 100%; height: 100%;
  object-fit: cover; z-index: -3;
}
.hero-3d { position: absolute; inset: 0; z-index: -2; }
.hero-3d canvas { width: 100% !important; height: 100% !important; display: block; }
.hero-shade {
  position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(90deg, rgba(250,248,248,.92) 0%, rgba(250,248,248,.55) 38%, rgba(250,248,248,0) 60%);
}

/* kırmızı şerit — kutunun sol kenarındaki gibi, eğik iç kenar + ince beyaz boşluk */
.hero-stripe {
  position: absolute; left: 0; top: 0; bottom: 0; width: var(--stripe); z-index: 0;
  background: linear-gradient(180deg, #e3283a 0%, var(--red) 50%, var(--red-deep) 100%);
  clip-path: polygon(0 0, 100% 0, 58% 100%, 0 100%);
  filter: drop-shadow(6px 0 0 rgba(255,255,255,.9));
}
.hero-stripe::after {
  content: ""; position: absolute; inset: 0;
  background: linear-gradient(90deg, rgba(0,0,0,.18), transparent 40%);
}

.hero-inner {
  position: relative; z-index: 1; width: 100%;
  display: grid; grid-template-columns: minmax(0, .9fr) minmax(0, 1.1fr); align-items: center;
  padding: 3rem clamp(16px, 3vw, 48px) 3rem calc(var(--stripe) + clamp(1.5rem, 4vw, 4.5rem));
}
.hero-copy { max-width: 600px; animation: rise .9s cubic-bezier(.2,.7,.2,1) both; }
.hero-kicker {
  display: inline-block; font-size: .72rem; font-weight: 700; letter-spacing: .16em;
  text-transform: uppercase; padding: .5em 1em; border: 1px solid rgba(255,255,255,.4);
  border-radius: 999px; margin-bottom: 1.6rem;
}
.hero-title {
  font-family: "Anton", Impact, "Arial Narrow", sans-serif; font-weight: 400;
  font-size: clamp(2.8rem, 6.2vw, 5.8rem);
  line-height: .95; letter-spacing: .005em; text-transform: uppercase;
  margin-bottom: 1.6rem;
}
.hero-title em { font-family: inherit; font-weight: inherit; font-style: normal; color: var(--red); }
.hero-title .reg { font-family: var(--sans); font-weight: 700; font-size: .3em; vertical-align: top; position: relative; top: -.05em; margin-left: -.02em; line-height: 1; }
.hero-title em { display: inline-block; font-size: 1.45em; line-height: .9; margin-top: .24em; }
.hero-lead { font-size: 1.12rem; color: var(--ink-2); max-width: 440px; margin-bottom: 2.2rem; }
.hero .btn-ghost { border-color: rgba(35,35,39,.25); color: var(--ink); }
.hero .btn-ghost:hover { background: rgba(35,35,39,.06); }
.hero-actions { display: flex; flex-wrap: wrap; gap: .8rem; }

.hero-stage { position: relative; display: grid; place-items: center; }
/* 3D sahne tüm hero'yu kaplar; bu alan yalnızca yer tutucu ve WebGL yoksa SVG yedeği */
.iron-3d { width: min(620px, 100%); aspect-ratio: 1; position: relative; }
.iron-fallback {
  position: absolute; inset: 18%; width: 64%; height: 64%; color: var(--red);
  border-radius: 50%; padding: 4%;
  background: radial-gradient(circle at 35% 30%, #fff 0%, #f1f1f3 55%, #c9c9cf 100%);
  box-shadow: 0 30px 60px rgba(0,0,0,.5);
}
.hero.is-3d .iron-fallback { display: none; }

.hero-scroll {
  position: absolute; left: 50%; bottom: 1.6rem; transform: translateX(-50%);
  width: 26px; height: 42px; border: 2px solid rgba(35,35,39,.3); border-radius: 14px;
}
.hero-scroll span {
  position: absolute; left: 50%; top: 8px; width: 4px; height: 8px; margin-left: -2px;
  background: var(--red); border-radius: 2px; animation: scrolldot 1.8s infinite;
}

@keyframes rise { from { opacity: 0; transform: translateY(30px); } to { opacity: 1; transform: none; } }
@keyframes spin { to { transform: rotate(360deg); } }
@keyframes scrolldot { 0% { opacity: 0; transform: translateY(0); } 40% { opacity: 1; } 100% { opacity: 0; transform: translateY(14px); } }

/* ---------- Features strip ---------- */
.features { border-bottom: 1px solid var(--line); }
.features-grid { display: grid; grid-template-columns: repeat(4, 1fr); }
.feature { padding: 2.4rem 1.6rem; border-left: 1px solid var(--line); }
.feature:first-child { border-left: 0; padding-left: 0; }
.feature h3 { font-size: clamp(1.9rem, 2.7vw, 2.5rem); font-weight: 800; line-height: 1.05; letter-spacing: -.03em; color: var(--ink); margin-bottom: .8rem; }
.feature h3 span { display: block; color: var(--red); }
.feature p { font-size: .92rem; color: var(--ink-2); margin: 0; }

/* ---------- Sections ---------- */
.section { padding: clamp(4rem, 8vw, 7rem) 0; }
.section-tint { background: var(--tint); }
.section-head { max-width: 640px; margin-bottom: 3rem; }
.section-head h2 { font-size: clamp(2rem, 4vw, 3rem); }
.section-head p { color: var(--ink-2); font-size: 1.05rem; }
.section-head-row { max-width: none; display: flex; align-items: end; justify-content: space-between; gap: 2rem; flex-wrap: wrap; }

/* ---------- Products ---------- */
.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.product-grid-2 { grid-template-columns: repeat(2, 1fr); }
.product-card {
  background: #fff; border: 1px solid var(--line); border-radius: 0;
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform .35s, box-shadow .35s, border-color .35s;
}
.product-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); border-color: transparent; }
.product-visual {
  display: grid; place-items: center; aspect-ratio: 5 / 4;
  background: radial-gradient(70% 70% at 50% 40%, #fff 0%, #f1efec 100%);
  perspective: 1000px;
}
.product-body { padding: 1.6rem 1.6rem 1.8rem; display: flex; flex-direction: column; flex: 1; }
.product-body .eyebrow { margin-bottom: .4em; }
.product-body h3 { font-size: 1.45rem; margin-bottom: .3em; }
.product-body h3 a { text-decoration: none; }
.product-body > p { color: var(--ink-2); margin-bottom: 1.6rem; }
.product-body .link-arrow { margin-top: auto; }

.chips { list-style: none; padding: 0; margin: 0 0 1.4rem; display: flex; flex-wrap: wrap; gap: .4rem; }
.chips li { font-size: .78rem; font-weight: 600; padding: .3em .8em; border-radius: 999px; background: var(--red-soft); color: var(--red-deep); }
.chips-lg li { font-size: .95rem; padding: .5em 1.1em; }

/* ---------- CSS ürün kutusu ---------- */
.pack { --w: 230px; --h: 165px; --d: 52px; width: var(--w); height: var(--h); perspective: 1000px; }
.pack--sidefer-sase { --w: 210px; --h: 175px; --d: 62px; }
.pack--sidefer-damla { --w: 150px; --h: 210px; --d: 60px; }
.pack-box {
  position: relative; width: 100%; height: 100%;
  transform-style: preserve-3d;
  transform: rotateX(-8deg) rotateY(-24deg);
  transition: transform .6s cubic-bezier(.2,.7,.2,1);
}
.product-card:hover .pack-box, .product-hero-visual:hover .pack-box { transform: rotateX(-4deg) rotateY(-10deg) translateY(-6px); }
.pack-face, .pack-side, .pack-top { position: absolute; backface-visibility: hidden; }
.pack-face {
  inset: 0; background: #fff; overflow: hidden;
  padding: 10% 9% 8% 34%;
  display: flex; flex-direction: column;
  transform: translateZ(calc(var(--d) / 2));
  box-shadow: inset 0 0 0 1px rgba(0,0,0,.04);
}
.pack-band {
  position: absolute; left: 0; top: 0; bottom: 0; width: 26%;
  background: linear-gradient(180deg, #e2283a, var(--red-deep));
  clip-path: polygon(0 0, 100% 0, 70% 100%, 0 100%);
}
.pack-logo { font-weight: 800; font-size: calc(var(--w) * .12); letter-spacing: -.03em; line-height: 1; display: flex; align-items: center; }
.pack-mark { width: 1em; height: 1em; color: var(--red); margin-left: .05em; }
.pack-form {
  align-self: flex-start; margin-top: .4em; font-size: calc(var(--w) * .035); font-weight: 800;
  text-transform: uppercase; color: #fff; background: var(--red); padding: .2em .7em; border-radius: 999px;
}
.pack-desc { font-size: calc(var(--w) * .033); line-height: 1.35; color: var(--ink-2); margin: auto 0 .3em; }
.pack-qty { font-size: calc(var(--w) * .034); font-weight: 700; margin: 0; }
.pack-side {
  top: 0; right: 0; width: var(--d); height: 100%;
  background: linear-gradient(90deg, #e8e6e3, #d8d5d1);
  transform-origin: right; transform: translateZ(calc(var(--d) / 2)) rotateY(90deg);
}
.pack-side::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 22%; background: var(--red-deep); opacity: .0; }
.pack-top {
  left: 0; top: 0; width: 100%; height: var(--d);
  background: linear-gradient(180deg, #fafafa, #efedea);
  transform-origin: top; transform: translateZ(calc(var(--d) / 2)) rotateX(-90deg);
}
.pack-top::before { content: ""; position: absolute; left: 0; top: 0; bottom: 0; width: 26%; background: #e2283a; }
.pack::after {
  content: ""; display: block; width: 90%; height: 18px; margin: 18px auto 0;
  background: radial-gradient(closest-side, rgba(0,0,0,.22), transparent); filter: blur(4px);
}

/* ---------- Split / sukrozom ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 6rem); align-items: center; }
.split-copy h2 { font-size: clamp(2rem, 4vw, 3rem); }
.split-copy > p { color: var(--ink-2); font-size: 1.05rem; }
.steps { list-style: none; counter-reset: s; padding: 0; margin: 2rem 0; display: grid; gap: 1rem; }
.steps li { counter-increment: s; display: grid; grid-template-columns: 44px 1fr; column-gap: 1rem; color: var(--ink-2); }
.steps li::before {
  content: counter(s); grid-row: span 2; width: 44px; height: 44px; border-radius: 50%;
  display: grid; place-items: center; background: #fff; color: var(--red); font-weight: 800;
  box-shadow: 0 6px 18px -8px rgba(0,0,0,.2);
}
.steps b { color: var(--ink); display: block; }

.sucrosome { position: relative; width: min(440px, 100%); aspect-ratio: 1; margin-inline: auto; }
.sucrosome-ring { position: absolute; border-radius: 50%; }
.sucrosome-ring.r1 { inset: 0; border: 2px dashed rgba(214,31,44,.3); animation: spin 60s linear infinite; }
.sucrosome-ring.r2 { inset: 12%; background: radial-gradient(circle, #fff 55%, #fde4e6 100%); box-shadow: var(--shadow); }
.sucrosome-ring.r3 {
  inset: 22%;
  background: repeating-conic-gradient(var(--red) 0 3deg, transparent 3deg 10deg);
  -webkit-mask: radial-gradient(circle, transparent 62%, #000 63%, #000 100%);
          mask: radial-gradient(circle, transparent 62%, #000 63%, #000 100%);
  animation: spin 30s linear infinite reverse;
}
.sucrosome-core {
  position: absolute; inset: 36%; border-radius: 50%; display: grid; place-items: center;
  background: radial-gradient(circle at 35% 30%, #ef4a57, var(--red-deep));
  color: #fff; font-weight: 800; font-size: clamp(1.6rem, 4vw, 2.6rem);
  box-shadow: 0 20px 40px -12px rgba(168,19,30,.6), inset 0 -8px 20px rgba(0,0,0,.2);
}
.sucrosome-label {
  position: absolute; font-size: .78rem; font-weight: 700; background: #fff; padding: .4em .9em;
  border-radius: 999px; box-shadow: 0 8px 20px -10px rgba(0,0,0,.25); white-space: nowrap;
}
.sucrosome-label.l1 { top: 6%; right: 2%; }
.sucrosome-label.l2 { bottom: 12%; left: 0; }
.sucrosome-label.l3 { top: 46%; right: -2%; color: var(--red); }

/* ---------- Kimler için ---------- */
.who-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1.2rem; }
.who {
  padding: 2rem 1.6rem; border-radius: var(--radius); background: #fff; border: 1px solid var(--line);
  position: relative; overflow: hidden; transition: background .3s, color .3s;
}
.who::before {
  content: ""; position: absolute; right: -30px; top: -30px; width: 110px; height: 110px; border-radius: 50%;
  background: repeating-conic-gradient(var(--red) 0 4deg, transparent 4deg 12deg);
  -webkit-mask: radial-gradient(circle, transparent 55%, #000 56%);
          mask: radial-gradient(circle, transparent 55%, #000 56%);
  opacity: .18; transition: opacity .3s, transform .6s;
}
.who:hover { background: var(--red); color: #fff; }
.who:hover::before { opacity: .5; transform: rotate(60deg); background: repeating-conic-gradient(#fff 0 4deg, transparent 4deg 12deg); }
.who h3 { font-size: 1.2rem; }
.who p { color: inherit; opacity: .8; font-size: .95rem; margin: 0; }

/* ---------- Articles ---------- */
.article-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.6rem; }
.article-card a { display: block; text-decoration: none; height: 100%; background: #fff; border-radius: 0; overflow: hidden; border: 1px solid var(--line); transition: transform .35s, box-shadow .35s; }
.article-card a:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.article-thumb { position: relative; aspect-ratio: 16 / 9; display: grid; place-items: center; overflow: hidden; background: linear-gradient(135deg, var(--red), var(--red-deep)); }
.article-thumb--2 { background: linear-gradient(135deg, #2b2b30, #45464d); }
.article-thumb--3 { background: linear-gradient(135deg, #f3d9db, #e9b7bb); }
.article-thumb--4 { background: linear-gradient(135deg, #f1efec, #dcd8d2); }
.article-thumb-mark { width: 46%; height: auto; color: rgba(255,255,255,.85); transition: transform .8s; }
.article-thumb--3 .article-thumb-mark, .article-thumb--4 .article-thumb-mark { color: var(--red); }
.article-card a:hover .article-thumb-mark { transform: rotate(45deg) scale(1.08); }
.tag { position: absolute; left: 1rem; top: 1rem; font-size: .72rem; font-weight: 700; padding: .3em .8em; border-radius: 999px; background: rgba(255,255,255,.92); color: var(--ink); }
.article-body { padding: 1.4rem 1.5rem 1.6rem; }
.article-body h3 { font-size: 1.2rem; }
.article-body p { color: var(--ink-2); font-size: .95rem; margin: 0; }
.meta { font-size: .8rem; color: var(--muted); font-weight: 600; display: block; margin-bottom: .5em; }

/* ---------- FAQ ---------- */
.faq-wrap { display: grid; grid-template-columns: 1fr 1.6fr; gap: clamp(2rem, 6vw, 6rem); align-items: start; }
.faq-wrap .section-head { position: sticky; top: calc(var(--header-h) + 2rem); }
.faq-wrap .section-head a:not(.link-arrow) { color: var(--red); }
.faq-list { border-top: 1px solid var(--line); }
.faq-item { border-bottom: 1px solid var(--line); }
.faq-item summary {
  list-style: none; cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 1rem;
  padding: 1.4rem 0; font-weight: 700; font-size: 1.08rem;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary i { flex: none; width: 32px; height: 32px; border-radius: 50%; border: 1.5px solid var(--line); position: relative; transition: background .25s, border-color .25s, transform .3s; }
.faq-item summary i::before, .faq-item summary i::after { content: ""; position: absolute; left: 50%; top: 50%; width: 12px; height: 2px; margin: -1px 0 0 -6px; background: var(--ink); transition: transform .3s, background .25s; }
.faq-item summary i::after { transform: rotate(90deg); }
.faq-item[open] summary i { background: var(--red); border-color: var(--red); transform: rotate(180deg); }
.faq-item[open] summary i::before, .faq-item[open] summary i::after { background: #fff; }
.faq-item[open] summary i::after { transform: rotate(0); }
.faq-item summary:hover span { color: var(--red); }
.faq-answer { padding: 0 3rem 1.4rem 0; color: var(--ink-2); }
.faq-answer p { margin: 0; }

/* ---------- CTA ---------- */
.cta { background: linear-gradient(135deg, var(--red), var(--red-deep)); color: #fff; padding: 5rem 0; overflow: hidden; position: relative; }
.cta-inner { display: flex; align-items: center; gap: 2rem; justify-content: space-between; flex-wrap: wrap; position: relative; }
.cta h2 { font-size: clamp(1.8rem, 4vw, 3rem); margin: 0; }
.cta h2 em { color: #fff; }
.cta-mark { position: absolute; right: 18%; top: 50%; width: 360px; height: 360px; margin-top: -180px; color: rgba(255,255,255,.08); animation: spin 50s linear infinite; pointer-events: none; }

/* ---------- Inner pages ---------- */
.page-hero { padding: clamp(3.5rem, 8vw, 6rem) 0 clamp(2rem, 4vw, 3rem); background: linear-gradient(180deg, var(--tint), #fff); }
.page-hero h1 { font-size: clamp(2.4rem, 5vw, 4rem); max-width: 820px; }
.page-hero p { font-size: 1.15rem; color: var(--ink-2); max-width: 620px; }
.crumbs { font-size: .85rem; color: var(--muted); margin-bottom: 1rem; }
.crumbs a { color: var(--red); text-decoration: none; font-weight: 600; }

.product-hero { padding: clamp(3rem, 6vw, 5rem) 0; background: linear-gradient(180deg, var(--tint), #fff); }
.product-hero-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 6vw, 5rem); align-items: center; }
.product-hero-visual { display: grid; place-items: center; min-height: 420px; background: radial-gradient(60% 60% at 50% 45%, #fff, #efece8); border-radius: 28px; }
.product-hero-visual .pack { transform: scale(1.45); }
.product-hero-copy h1 { font-size: clamp(2.4rem, 5vw, 3.8rem); }
.lead { font-size: 1.15rem; color: var(--ink-2); }
.check-list { list-style: none; padding: 0; margin: 1.6rem 0; display: grid; gap: .7rem; }
.check-list li { padding-left: 2rem; position: relative; }
.check-list li::before { content: ""; position: absolute; left: 0; top: .35em; width: 18px; height: 18px; border-radius: 50%; background: var(--red) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.5l2.5 2.5L12 5.5' fill='none' stroke='%23fff' stroke-width='2' stroke-linecap='round'/%3E%3C/svg%3E") center / 12px no-repeat; }
.spec { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 0; padding-top: 1.4rem; border-top: 1px solid var(--line); }
.spec dt { font-size: .75rem; text-transform: uppercase; letter-spacing: .1em; color: var(--muted); font-weight: 700; }
.spec dd { margin: .2em 0 0; font-weight: 700; }
.detail-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.6rem; }
.detail-card { padding: 2rem; border-radius: var(--radius); border: 1px solid var(--line); }
.detail-card h2 { font-size: 1.4rem; }
.detail-card p { color: var(--ink-2); margin: 0; }

.note { margin-top: 2.5rem; padding: 1.2rem 1.4rem; border-radius: 12px; background: var(--red-soft); color: var(--ink-2); font-size: .9rem; border-left: 4px solid var(--red); }
.note strong { color: var(--red-deep); }

.prose { padding-block: 2rem 4rem; font-size: 1.1rem; }
.prose p { color: #3a3b40; line-height: 1.8; }
.prose p:first-child::first-letter { font-family: var(--serif); float: left; font-size: 3.6em; line-height: .9; padding: .05em .12em 0 0; color: var(--red); }

.stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem; }
.stats div { text-align: center; padding: 2rem; border-radius: var(--radius); background: var(--tint); }
.stats b { display: block; font-family: var(--serif); font-size: 3.4rem; color: var(--red); line-height: 1; }
.stats span { color: var(--ink-2); font-weight: 600; }

/* ---------- Form ---------- */
.contact-grid { display: grid; grid-template-columns: 1.6fr 1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
.form { display: grid; gap: 1.1rem; }
.field { display: grid; gap: .4rem; }
.field label { font-weight: 600; font-size: .9rem; }
.field input:not([type=checkbox]), .field select, .field textarea {
  font: inherit; padding: .85em 1em; border-radius: 12px; border: 1.5px solid var(--line); background: #fff; width: 100%;
  transition: border-color .2s, box-shadow .2s;
}
.field input:focus, .field select:focus, .field textarea:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 4px var(--red-soft); }
.field-check { grid-template-columns: auto 1fr; align-items: start; gap: .7rem; }
.field-check input { margin-top: .3em; accent-color: var(--red); width: 18px; height: 18px; }
.field-check label { font-weight: 500; color: var(--ink-2); }
.field-check .error { grid-column: 1 / -1; }
.has-error input, .has-error textarea, .has-error select { border-color: var(--red); }
.error { color: var(--red); font-weight: 600; }
.form .btn { justify-self: start; }
.contact-info { padding: 2rem; border-radius: var(--radius); background: var(--tint); }
.contact-info p { color: var(--ink-2); }
.contact-info b { color: var(--ink); }

.flash { padding-top: 1.2rem; }
.flash-msg { padding: 1rem 1.2rem; border-radius: 12px; background: #e8f6ee; color: #1d6b3e; font-weight: 600; margin: 0; }

/* ---------- Footer ---------- */
.site-footer { background: #1b1b1f; color: #d9d9de; padding: 4.5rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1fr; gap: 2rem; padding-bottom: 3rem; border-bottom: 1px solid rgba(255,255,255,.1); }
.site-footer h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; margin-bottom: 1.2rem; }
.footer-grid a:not(.logo) { display: block; text-decoration: none; color: #b5b5bc; margin-bottom: .6rem; font-size: .95rem; }
.footer-grid a:not(.logo):hover { color: #fff; }
.footer-grid .logo { margin-bottom: 1rem; }
.site-footer .muted { color: #8d8d96; font-size: .92rem; }
.footer-bottom { padding-top: 2rem; display: grid; gap: .6rem; }
.disclaimer { font-size: .82rem; color: #8d8d96; max-width: 900px; margin: 0; }
.footer-bottom .muted { font-size: .82rem; margin: 0; }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(28px); transition: opacity .8s cubic-bezier(.2,.7,.2,1), transform .8s cubic-bezier(.2,.7,.2,1); }
.js .reveal.is-visible { opacity: 1; transform: none; }

/* ==========================================================
   Responsive
   ========================================================== */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .feature:nth-child(3) { border-left: 0; padding-left: 0; }
  .feature { border-top: 1px solid var(--line); }
  .feature:nth-child(-n+2) { border-top: 0; }
  .who-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .pack { --w: 190px; --h: 136px; --d: 44px; }
  .pack--sidefer-sase { --w: 175px; --h: 146px; --d: 52px; }
  .pack--sidefer-damla { --w: 124px; --h: 176px; --d: 50px; }
}

@media (max-width: 860px) {
  .nav-toggle { display: block; }
  .site-nav {
    position: fixed; inset: var(--header-h) 0 auto 0; background: #fff;
    flex-direction: column; align-items: flex-start; gap: 0; padding: .5rem 16px 1.5rem;
    border-bottom: 1px solid var(--line); box-shadow: 0 20px 30px -20px rgba(0,0,0,.2);
    transform: translateY(-110%); visibility: hidden; transition: transform .3s, visibility .3s;
  }
  .nav-open .site-nav { transform: none; visibility: visible; }
  .site-nav a:not(.btn) { padding: .9rem 0; width: 100%; border-bottom: 1px solid var(--line); }
  .site-nav a:not(.btn)::after { display: none; }
  .site-nav .btn { margin-top: 1rem; }

  /* hero: ikon üstte, metin altta; şerit solda kalır */
  .hero { --stripe: 26px; min-height: 0; }
  .hero-inner { grid-template-columns: 1fr; padding: 1rem 16px 4rem calc(var(--stripe) + 18px); }
  .hero-stage { order: -1; }
  .iron-3d { width: min(400px, 100%); }
  .hero-shade { background: linear-gradient(180deg, rgba(250,248,248,0) 30%, rgba(250,248,248,.85) 56%); }
  .hero-title { font-size: clamp(2.4rem, 12vw, 3.8rem); }
  .hero-kicker { letter-spacing: .1em; font-size: .66rem; }
  .hero-scroll { display: none; }

  .product-grid, .product-grid-2, .article-grid { grid-template-columns: 1fr; }
  .split, .faq-wrap, .product-hero-grid, .detail-grid, .contact-grid { grid-template-columns: 1fr; }
  .faq-wrap .section-head { position: static; margin-bottom: 1rem; }
  .product-hero-visual { min-height: 320px; }
  .product-hero-visual .pack { transform: scale(1.15); }
  .stats { grid-template-columns: 1fr; }
  .sucrosome-label.l3 { right: 0; }
  .cta-mark { right: -80px; }
}

@media (max-width: 560px) {
  .features-grid, .who-grid, .footer-grid { grid-template-columns: 1fr; }
  .feature, .feature:nth-child(3) { border-left: 0; padding: 1.6rem 0; border-top: 1px solid var(--line); }
  .feature:first-child { border-top: 0; }
  .spec { grid-template-columns: 1fr 1fr; }
  .faq-answer { padding-right: 0; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; }
}

/* ---------- Panelden yüklenen görseller ---------- */
.logo-img { height: 38px; width: auto; display: block; }
.site-footer .logo-img { height: 34px; }
.product-photo { width: 78%; height: 78%; object-fit: contain; filter: drop-shadow(0 24px 30px rgba(0,0,0,.18)); transition: transform .5s cubic-bezier(.2,.7,.2,1); }
.product-card:hover .product-photo { transform: translateY(-6px) scale(1.03); }
.product-photo-lg { width: 80%; height: auto; max-height: 460px; }
.article-photo { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; transition: transform .8s; }
.article-card a:hover .article-photo { transform: scale(1.05); }

/* ---------- Sağlık bildirimi (footer üstü) ---------- */
.health-notice {
  display: grid; grid-template-columns: 44px 1fr; gap: 1.2rem; align-items: start;
  margin-bottom: 2rem; padding: 1.6rem 1.8rem;
  border: 1px solid rgba(255,255,255,.12); border-left: 4px solid var(--red);
  background: rgba(255,255,255,.03);
}
.health-notice svg { width: 36px; height: 36px; color: #ff4655; }
.health-notice h4 { color: #fff; font-size: .85rem; text-transform: uppercase; letter-spacing: .12em; margin: 0 0 .5rem; }
.health-notice p { margin: 0; font-size: .9rem; line-height: 1.7; color: #c3c3ca; }
.footer-bottom { grid-template-columns: 1fr auto; align-items: center; }
.legal-links { display: flex; flex-wrap: wrap; gap: .4rem 1.4rem; }
.legal-links a { color: #b5b5bc; text-decoration: none; font-size: .82rem; }
.legal-links a:hover { color: #fff; }

/* ---------- Hukuki metin sayfaları ---------- */
.legal { padding-bottom: 2rem; color: #3a3b40; }
.legal h2 { font-size: 1.3rem; margin: 2.4rem 0 .8rem; }
.legal p, .legal li { line-height: 1.8; }
.legal ul { padding-left: 1.2rem; }
.legal li { margin-bottom: .4rem; }
.legal a:not(.btn) { color: var(--red); }
.legal table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.4rem; font-size: .95rem; }
.legal th, .legal td { text-align: left; padding: .7rem .9rem; border: 1px solid var(--line); vertical-align: top; }
.legal th { background: var(--tint); font-weight: 700; white-space: nowrap; }
.legal mark.todo { background: #fff3cd; color: #7a5a00; padding: 0 .3em; font-size: .9em; }
.section-legal { padding-top: 1rem; }
.form-note { font-size: .85rem; color: var(--muted); margin: 0; }

/* ---------- Çerez bildirimi ---------- */
.cookie-bar {
  position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 100;
  max-width: 980px; margin-inline: auto;
  display: flex; align-items: center; gap: 1.4rem;
  padding: 1.1rem 1.4rem; background: #fff; color: var(--ink);
  border-left: 4px solid var(--red); box-shadow: 0 24px 60px -16px rgba(0,0,0,.35);
}
.cookie-bar[hidden] { display: none; }
.cookie-bar p { margin: 0; font-size: .88rem; color: var(--ink-2); }
.cookie-bar a { color: var(--red); font-weight: 600; }
.cookie-actions { display: flex; gap: .6rem; flex: none; }
.btn-outline { border-color: var(--line); color: var(--ink); background: #fff; }
.btn-outline:hover { border-color: var(--ink); }

@media (max-width: 860px) {
  .footer-bottom { grid-template-columns: 1fr; }
  .cookie-bar { flex-direction: column; align-items: stretch; gap: .9rem; }
  .cookie-actions .btn { flex: 1; justify-content: center; }
  .health-notice { grid-template-columns: 1fr; padding: 1.3rem; }
  .legal th { white-space: normal; }
  .legal table { display: block; overflow-x: auto; }
}

/* ---------- SSS sayfası (kategorili) ---------- */
.faq-page { display: grid; grid-template-columns: 240px 1fr; gap: clamp(2rem, 5vw, 5rem); align-items: start; }
.faq-cats { position: sticky; top: calc(var(--header-h) + 2rem); display: grid; gap: .2rem; }
.faq-cats a { display: flex; justify-content: space-between; padding: .7rem 1rem; text-decoration: none; font-weight: 600; color: var(--ink-2); border-left: 3px solid var(--line); }
.faq-cats a:hover { color: var(--red); border-left-color: var(--red); background: var(--red-soft); }
.faq-cats span { color: var(--muted); font-weight: 500; }
.faq-group { margin-bottom: 3rem; scroll-margin-top: calc(var(--header-h) + 1.5rem); }
.faq-group h2 { font-size: 1.5rem; margin-bottom: 1rem; }
.faq-group h2::before { content: ""; display: inline-block; width: 18px; height: 4px; background: var(--red); vertical-align: middle; margin-right: .6rem; }
@media (max-width: 860px) {
  .faq-page { grid-template-columns: 1fr; }
  .faq-cats { position: static; display: flex; flex-wrap: wrap; gap: .4rem; }
  .faq-cats a { border: 1px solid var(--line); padding: .45rem .8rem; font-size: .88rem; gap: .5rem; }
}