/* ===========================================================
   Purevia Water — Tanıtım LP
   Kimlik: "Precision Wellness" (koyu petrol + sıcak nötr + amber)
   Kaynak spec: kurumsal_kimlik/kurumsal_kimlik_sablonu.md
   Joykek design_system.md token mimarisine uyumlu (3 katman renk)
   =========================================================== */

/* ---------- Fonts (self-host, Joykek lokal-font disiplini) ---------- */
@font-face {
  font-family: 'Inter var';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('assets/fonts/inter-latin.woff2') format('woff2');
  unicode-range: U+0000-00FF, U+0131, U+0152-0153, U+02BB-02BC, U+02C6, U+02DA, U+02DC, U+0304, U+0308, U+0329, U+2000-206F, U+2074, U+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
@font-face {
  font-family: 'Inter var';
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url('assets/fonts/inter-latinext.woff2') format('woff2');
  unicode-range: U+0100-02BA, U+02BD-02C5, U+02C7-02CC, U+02CE-02D7, U+02DD-02FF, U+0304, U+0308, U+0329, U+1D00-1DBF, U+1E00-1E9F, U+1EF2-1EFF, U+2020, U+20A0-20AB, U+20AD-20C0, U+2113, U+2C60-2C7F, U+A720-A7FF;
}

/* ---------- Tokens ---------- */
:root {
  /* Primitive */
  --c-petrol-900: #02000D;
  --c-petrol-800: #04162B;
  --c-petrol-700: #07203F; /* ANA */
  --c-petrol-600: #0C2C4F;
  --c-petrol-500: #163A63;
  --c-cream-100: #EBE5DC;  /* NÖTR */
  --c-cream-50:  #F6F2EC;
  --c-cream-25:  #FBF9F5;
  --c-white:     #FFFFFF;
  --c-amber-400: #D9AA90;  /* AKSAN / CTA */
  --c-amber-500: #C98F70;
  --c-amber-300: #E7C6B2;
  --c-terra-600: #A65E46;
  --c-line:      #DED7CC;
  --c-line-dark: #1C3653;

  /* Semantic */
  --surface-base:   var(--c-cream-50);
  --surface-raised: var(--c-white);
  --surface-soft:   var(--c-cream-100);
  --surface-dark:   var(--c-petrol-700);
  --surface-darker: var(--c-petrol-900);
  --text-default:   var(--c-petrol-900);
  --text-strong:    var(--c-petrol-700);
  --text-on-dark:   var(--c-cream-100);
  --text-muted:     #5A6B7E;
  --text-muted-dark:#9DB0C4;
  --action-primary: var(--c-petrol-700);
  --action-accent:  var(--c-amber-400);
  --border-subtle:  var(--c-line);

  /* Spacing (4px) */
  --s1:4px; --s2:8px; --s3:12px; --s4:16px; --s5:20px; --s6:24px;
  --s8:32px; --s10:40px; --s12:48px; --s16:64px; --s20:80px; --s24:96px; --s28:112px; --s32:128px;

  /* Radius */
  --r-sm:6px; --r-md:10px; --r-lg:14px; --r-xl:20px; --r-2xl:28px; --r-full:9999px;

  /* Elevation (warm petrol-tinted) */
  --e1:0 1px 2px rgba(7,32,63,.06), 0 1px 3px rgba(7,32,63,.05);
  --e2:0 4px 14px rgba(7,32,63,.08), 0 2px 6px rgba(7,32,63,.05);
  --e3:0 18px 48px rgba(7,32,63,.16), 0 6px 16px rgba(7,32,63,.08);
  --e-amber:0 14px 34px rgba(166,94,70,.28);

  /* Motion */
  --dur-fast:150ms; --dur-base:280ms; --dur-slow:560ms;
  --ease:cubic-bezier(.16,1,.3,1);
  --ease-premium:cubic-bezier(.22,1,.36,1);

  /* Layout */
  --container:1200px;
  --gutter:clamp(20px, 5vw, 48px);

  /* Type */
  --font: 'Inter var', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;

  /* Z */
  --z-header:20; --z-preview:30; --z-cart:60; --z-toast:80;
}

/* ---------- Reset / Base ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
.section[id], main[id] { scroll-margin-top: 84px; }
body {
  font-family: var(--font);
  font-feature-settings: 'cv05' 1, 'ss03' 1;
  background: var(--surface-base);
  color: var(--text-default);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img, svg, picture { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
ul { list-style: none; padding: 0; }
:focus-visible { outline: 3px solid var(--c-amber-500); outline-offset: 3px; border-radius: var(--r-sm); }
.sr-only { position:absolute; width:1px; height:1px; padding:0; margin:-1px; overflow:hidden; clip:rect(0,0,0,0); white-space:nowrap; border:0; }

h1, h2, h3, h4 { line-height: 1.12; font-weight: 700; letter-spacing: -0.02em; color: var(--text-strong); }
.on-dark h1, .on-dark h2, .on-dark h3 { color: var(--c-white); }

/* ---------- Layout helpers ---------- */
.wrap { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vw, 120px); position: relative; }
.section--dark { background: var(--surface-dark); color: var(--text-on-dark); }
.section--darker { background: var(--surface-darker); color: var(--text-on-dark); }
.section--soft { background: linear-gradient(180deg, var(--c-cream-50), var(--c-cream-100)); }
.eyebrow {
  display: inline-flex; align-items: center; gap: var(--s2);
  font-size: .8rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
  color: var(--c-terra-600); margin-bottom: var(--s4);
}
.section--dark .eyebrow, .section--darker .eyebrow { color: var(--c-amber-300); }
.eyebrow::before { content:""; width: 26px; height: 2px; background: currentColor; opacity:.7; }
.section-head { max-width: 660px; margin-bottom: clamp(40px, 6vw, 72px); }
.section-head h2 { font-size: clamp(1.9rem, 4.2vw, 3rem); }
.section-head p { margin-top: var(--s5); font-size: 1.08rem; color: var(--text-muted); }
.section--dark .section-head p, .section--darker .section-head p { color: var(--text-muted-dark); }
.section-head.center { margin-inline: auto; text-align: center; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s2);
  padding: 15px 26px; border-radius: var(--r-full);
  font-weight: 600; font-size: 1rem; letter-spacing: -0.01em;
  min-height: 52px; white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease), box-shadow var(--dur-base) var(--ease), background var(--dur-base) var(--ease);
  will-change: transform;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn--primary { background: var(--action-primary); color: var(--c-cream-50); box-shadow: var(--e2); }
.btn--primary:hover { background: var(--c-petrol-600); box-shadow: var(--e3); transform: translateY(-2px); }
.btn--accent { background: var(--action-accent); color: var(--c-petrol-900); box-shadow: var(--e-amber); }
.btn--accent:hover { background: var(--c-amber-300); transform: translateY(-2px); }
.btn--ghost { background: transparent; color: var(--text-strong); box-shadow: inset 0 0 0 1.5px var(--border-subtle); }
.btn--ghost:hover { box-shadow: inset 0 0 0 1.5px var(--c-petrol-700); background: var(--c-white); }
.on-dark .btn--ghost { color: var(--c-cream-50); box-shadow: inset 0 0 0 1.5px rgba(235,229,220,.3); }
.on-dark .btn--ghost:hover { background: rgba(235,229,220,.08); box-shadow: inset 0 0 0 1.5px rgba(235,229,220,.6); }
.btn--lg { padding: 17px 32px; min-height: 58px; font-size: 1.05rem; }
.btn--block { width: 100%; }
.btn svg { width: 18px; height: 18px; }

/* ---------- Preview banner (dürüstlük şeridi) ---------- */
.preview-banner {
  position: relative; z-index: var(--z-preview);
  background: var(--c-petrol-900); color: var(--c-cream-100);
  font-size: .82rem; text-align: center; padding: 9px var(--gutter);
  letter-spacing: .01em;
}
.preview-banner strong { color: var(--c-amber-300); font-weight: 600; }
.preview-banner .dot { color: var(--c-amber-400); }

/* ---------- Header ---------- */
.header {
  position: sticky; top: 0; z-index: var(--z-header);
  transition: background var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease), backdrop-filter var(--dur-base);
}
.header__inner { display: flex; align-items: center; gap: var(--s6); height: 74px; }
.header.is-scrolled {
  background: rgba(246,242,236,.72);
  backdrop-filter: saturate(180%) blur(16px);
  -webkit-backdrop-filter: saturate(180%) blur(16px);
  box-shadow: 0 1px 0 var(--border-subtle), var(--e1);
}
.brand { display: inline-flex; align-items: center; gap: var(--s3); font-weight: 700; font-size: 1.28rem; letter-spacing: -0.03em; color: var(--text-strong); }
.brand__mark { width: 34px; height: 34px; flex: none; }
.brand small { display:block; font-size:.6rem; font-weight:600; letter-spacing:.22em; text-transform:uppercase; color: var(--text-muted); margin-top:-2px; }
.nav { display: flex; align-items: center; gap: var(--s6); margin-left: auto; }
.nav__links { display: flex; gap: var(--s6); }
.nav__links a { font-size: .96rem; font-weight: 500; color: var(--text-strong); position: relative; padding-block: 4px; }
.nav__links a::after { content:""; position:absolute; left:0; bottom:0; width:0; height:2px; background: var(--c-amber-400); transition: width var(--dur-base) var(--ease); }
.nav__links a:hover::after { width:100%; }
.header__cta { display:flex; align-items:center; gap: var(--s3); }

/* cart button */
.cart-btn { position: relative; width: 48px; height: 48px; border-radius: var(--r-full); display:grid; place-items:center; background: var(--c-white); box-shadow: var(--e1); transition: box-shadow var(--dur-base), transform var(--dur-fast); }
.cart-btn:hover { box-shadow: var(--e2); transform: translateY(-1px); }
.cart-btn svg { width: 22px; height: 22px; stroke: var(--text-strong); }
.cart-badge {
  position: absolute; top: -4px; right: -4px; min-width: 22px; height: 22px; padding: 0 5px;
  background: var(--c-terra-600); color: #fff; border-radius: var(--r-full);
  font-size: .72rem; font-weight: 700; display: grid; place-items: center;
  transform: scale(0); transition: transform var(--dur-base) var(--ease-premium);
}
.cart-badge.is-on { transform: scale(1); }
.cart-badge.pulse { animation: badgePulse .5s var(--ease-premium); }
@keyframes badgePulse { 0%{transform:scale(1)} 40%{transform:scale(1.35)} 100%{transform:scale(1)} }

/* burger */
.burger { display: none; width: 48px; height: 48px; border-radius: var(--r-md); }
.burger span { display:block; width: 22px; height: 2px; background: var(--text-strong); margin: 5px auto; transition: var(--dur-base); }

/* ---------- TEYİT rozeti (doğrulanacak — Claim-Source disiplini) ---------- */
.teyit {
  display: inline-flex; align-items: center; gap: 7px;
  font-size: .82rem; font-weight: 500; color: var(--text-muted);
  padding: 5px 12px; border-radius: var(--r-full);
  border: 1.5px dashed var(--c-amber-500);
  background: rgba(217,170,144,.08);
}
.teyit::before { content:""; width: 8px; height: 8px; border-radius: 50%; background: var(--c-amber-400); box-shadow: 0 0 0 3px rgba(217,170,144,.3); flex:none; }
.on-dark .teyit { color: var(--text-muted-dark); border-color: var(--c-amber-400); background: rgba(217,170,144,.12); }
.teyit b { font-weight: 600; color: var(--text-strong); }
.on-dark .teyit b { color: var(--c-cream-50); }

/* ---------- Hero ---------- */
.hero { position: relative; overflow: hidden; background: var(--surface-base); }
.hero::before { /* precision grid doku — su makrosu DEĞİL */
  content:""; position:absolute; inset:0; pointer-events:none; opacity:.5;
  background-image:
    linear-gradient(var(--c-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--c-line) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(120% 80% at 70% 30%, #000 0%, transparent 70%);
  -webkit-mask-image: radial-gradient(120% 80% at 70% 30%, #000 0%, transparent 70%);
}
.hero__inner { position: relative; display: grid; grid-template-columns: 1.05fr .95fr; gap: clamp(32px, 5vw, 72px); align-items: center; padding-block: clamp(48px, 7vw, 88px); }
.hero__content { max-width: 600px; }
.hero h1 { font-size: clamp(2.5rem, 6vw, 4.1rem); font-weight: 800; letter-spacing: -0.035em; }
.hero h1 .accent { color: var(--c-terra-600); position: relative; white-space: nowrap; }
.hero h1 .accent::after { content:""; position:absolute; left:0; right:0; bottom:.06em; height:.14em; background: var(--c-amber-400); opacity:.55; border-radius:2px; z-index:-1; }
.hero__sub { margin-top: var(--s6); font-size: clamp(1.05rem, 1.6vw, 1.22rem); color: var(--text-muted); max-width: 520px; }
.hero__cta { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s8); }
.hero__pills { display: flex; flex-wrap: wrap; gap: var(--s3); margin-top: var(--s10); padding-top: var(--s6); border-top: 1px solid var(--border-subtle); }
.pill { display:inline-flex; align-items:center; gap: var(--s2); font-size: .9rem; font-weight: 600; color: var(--text-strong); }
.pill svg { width: 20px; height: 20px; stroke: var(--c-terra-600); flex:none; }

/* hero visual */
.hero__visual { position: relative; justify-self: center; width: min(560px, 100%); }
.hero__frame { position: relative; z-index: 2; margin: 0; border-radius: var(--r-2xl); overflow: hidden; box-shadow: var(--e3); border: 1px solid rgba(255,255,255,.6); background: var(--c-petrol-900); }
.hero__frame img { width: 100%; height: auto; display: block; }
.hero__glow { position: absolute; inset: -16% -12%; z-index: 1; background: radial-gradient(circle at 55% 50%, rgba(217,170,144,.5), transparent 64%); filter: blur(12px); }
.hero__chip {
  position: absolute; z-index: 3; background: rgba(255,255,255,.82); backdrop-filter: blur(10px);
  border: 1px solid var(--border-subtle); box-shadow: var(--e2);
  border-radius: var(--r-lg); padding: 12px 16px; display:flex; align-items:center; gap: var(--s3);
}
.hero__chip svg { width: 26px; height: 26px; stroke: var(--c-terra-600); flex:none; }
.hero__chip b { display:block; font-size: 1.05rem; color: var(--text-strong); line-height:1.1; }
.hero__chip span { font-size: .76rem; color: var(--text-muted); }
.hero__chip--tds { top: 14%; left: -8%; }
.hero__chip--install { bottom: 12%; right: -6%; }

/* ---------- Trust strip (marquee) ---------- */
.trust { background: var(--c-petrol-900); color: var(--c-cream-100); padding-block: var(--s5); overflow: hidden; }
.trust__track { display:flex; gap: var(--s12); width: max-content; animation: marquee 32s linear infinite; }
.trust__track:hover { animation-play-state: paused; }
.trust__item { display:inline-flex; align-items:center; gap: var(--s3); font-size: .98rem; font-weight: 500; color: var(--c-cream-100); opacity:.92; }
.trust__item svg { width: 22px; height: 22px; stroke: var(--c-amber-400); flex:none; }
.trust__item .teyit { color: var(--text-muted-dark); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---------- Problem → Çözüm (dark) ---------- */
.problem__grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(32px, 5vw, 80px); align-items: center; }
.contaminants { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s4); }
.contaminant { background: rgba(255,255,255,.04); border: 1px solid var(--c-line-dark); border-radius: var(--r-lg); padding: var(--s6); transition: transform var(--dur-base) var(--ease), border-color var(--dur-base); }
.contaminant:hover { transform: translateY(-4px); border-color: var(--c-amber-400); }
.contaminant svg { width: 30px; height: 30px; stroke: var(--c-amber-400); margin-bottom: var(--s3); }
.contaminant b { display:block; font-size: 1.1rem; color: #fff; margin-bottom: 4px; }
.contaminant span { font-size: .9rem; color: var(--text-muted-dark); }
.solution-note { margin-top: var(--s8); padding: var(--s6); border-radius: var(--r-lg); background: linear-gradient(135deg, rgba(217,170,144,.16), rgba(217,170,144,.04)); border: 1px solid rgba(217,170,144,.3); display:flex; gap: var(--s4); align-items:flex-start; }
.solution-note svg { width: 28px; height: 28px; stroke: var(--c-amber-300); flex:none; }

/* ---------- Ürün vitrini (e-ticaret demo) ---------- */
.products__head { display:flex; flex-wrap:wrap; align-items:flex-end; justify-content:space-between; gap: var(--s6); margin-bottom: clamp(36px,5vw,60px); }
.demo-note { display:inline-flex; align-items:center; gap: var(--s2); font-size:.84rem; font-weight:600; color: var(--c-terra-600); background: rgba(166,94,70,.08); border:1px solid rgba(166,94,70,.2); padding:7px 14px; border-radius: var(--r-full); }
.demo-note svg { width:16px; height:16px; }
.product-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: var(--s5); }
.product-card { background: var(--surface-raised); border: 1px solid var(--border-subtle); border-radius: var(--r-xl); padding: var(--s5); display:flex; flex-direction: column; transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base) var(--ease), border-color var(--dur-base); }
.product-card:hover { transform: translateY(-6px); box-shadow: var(--e3); border-color: transparent; }
.product-card__media { position: relative; aspect-ratio: 1; border-radius: var(--r-lg); background: linear-gradient(160deg, var(--c-cream-25), var(--c-cream-100)); overflow: hidden; display:grid; place-items:center; margin-bottom: var(--s4); }
.product-card__media img { width: 82%; height: 82%; object-fit: contain; transition: transform var(--dur-slow) var(--ease-premium); }
.product-card:hover .product-card__media img { transform: scale(1.06); }
.product-tag { position:absolute; top: 10px; left: 10px; font-size:.72rem; font-weight:700; letter-spacing:.04em; text-transform:uppercase; color: var(--c-petrol-700); background: rgba(255,255,255,.85); backdrop-filter: blur(4px); padding: 4px 9px; border-radius: var(--r-full); }
.product-card h3 { font-size: 1.12rem; letter-spacing:-0.02em; }
.product-card__desc { font-size: .9rem; color: var(--text-muted); margin-top: 6px; flex: 1; }
.product-card__specs { display:flex; flex-wrap:wrap; gap: 6px; margin-top: var(--s4); }
.spec { font-size:.76rem; font-weight:600; color: var(--text-strong); background: var(--c-cream-100); padding: 4px 10px; border-radius: var(--r-full); }
.product-card__price { margin-top: var(--s5); padding-top: var(--s4); border-top: 1px dashed var(--border-subtle); }
.product-card__price .teyit { font-size:.78rem; padding: 4px 10px; }
.product-card__price .installment { display:block; font-size:.78rem; color: var(--text-muted); margin-top: 6px; }
.add-btn { margin-top: var(--s4); position: relative; overflow: hidden; }
.add-btn .label-default, .add-btn .label-added { display:inline-flex; align-items:center; gap: var(--s2); transition: transform var(--dur-base) var(--ease-premium), opacity var(--dur-base); }
.add-btn .label-added { position:absolute; inset:0; display:flex; align-items:center; justify-content:center; transform: translateY(120%); opacity:0; }
.add-btn.added { background: var(--c-petrol-700); color: var(--c-cream-50); }
.add-btn.added .label-default { transform: translateY(-120%); opacity:0; }
.add-btn.added .label-added { transform: translateY(0); opacity:1; }

/* ---------- Nasıl çalışır (aşama akışı) ---------- */
.steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: var(--s4); counter-reset: step; }
.step { position: relative; padding: var(--s6) var(--s4); border-radius: var(--r-lg); background: rgba(255,255,255,.04); border: 1px solid var(--c-line-dark); }
.step__num { counter-increment: step; font-size: .8rem; font-weight: 700; letter-spacing:.1em; color: var(--c-amber-300); }
.step__num::before { content: counter(step, decimal-leading-zero); }
.step__icon { width: 46px; height: 46px; border-radius: var(--r-md); display:grid; place-items:center; background: rgba(217,170,144,.14); margin: var(--s4) 0; }
.step__icon svg { width: 24px; height: 24px; stroke: var(--c-amber-300); }
.step h3 { color: #fff; font-size: 1.02rem; margin-bottom: 4px; }
.step p { font-size: .85rem; color: var(--text-muted-dark); }
.step:not(:last-child)::after { content:""; position:absolute; top: 50%; right: calc(var(--s4) * -1 - 1px); width: var(--s4); height: 2px; background: linear-gradient(90deg, var(--c-amber-400), transparent); z-index:1; }
.how-foot { margin-top: var(--s10); display:flex; flex-wrap:wrap; gap: var(--s4); align-items:center; justify-content:center; text-align:center; }

/* ---------- Neden Purevia (bento) ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); grid-auto-rows: minmax(180px, auto); gap: var(--s5); }
.bento__card { background: var(--surface-raised); border:1px solid var(--border-subtle); border-radius: var(--r-xl); padding: var(--s8); display:flex; flex-direction:column; justify-content:flex-end; position:relative; overflow:hidden; transition: transform var(--dur-base) var(--ease), box-shadow var(--dur-base); }
.bento__card:hover { transform: translateY(-5px); box-shadow: var(--e3); }
.bento__card .ico { width: 50px; height: 50px; border-radius: var(--r-md); display:grid; place-items:center; background: var(--c-cream-100); margin-bottom: auto; }
.bento__card .ico svg { width: 26px; height: 26px; stroke: var(--c-terra-600); }
.bento__card h3 { font-size: 1.25rem; margin-top: var(--s5); }
.bento__card p { font-size: .94rem; color: var(--text-muted); margin-top: var(--s2); }
.bento__card--wide { grid-column: span 2; background: linear-gradient(135deg, var(--c-petrol-700), var(--c-petrol-500)); color:#fff; }
.bento__card--wide h3 { color:#fff; } .bento__card--wide p { color: var(--text-muted-dark); }
.bento__card--wide .ico { background: rgba(217,170,144,.18); } .bento__card--wide .ico svg { stroke: var(--c-amber-300); }
.bento__card--accent { background: linear-gradient(135deg, var(--c-amber-400), var(--c-amber-300)); }
.bento__card--accent .ico { background: rgba(7,32,63,.12); } .bento__card--accent .ico svg { stroke: var(--c-petrol-800); }
.bento__card--accent h3, .bento__card--accent p { color: var(--c-petrol-900); }
.bento__card--accent p { opacity:.78; }
.bento__card--media { padding: 0; overflow: hidden; min-height: 340px; color: #fff; }
.bento__card--media:hover .bento__media-img { transform: scale(1.05); }
.bento__media-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; object-position: center 20%; transition: transform var(--dur-slow) var(--ease-premium); }
.bento__media-overlay { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(4,22,43,.08) 0%, rgba(2,0,13,.5) 52%, rgba(2,0,13,.9) 100%); }
.bento__media-content { position: relative; z-index: 2; margin-top: auto; padding: var(--s8); }
.bento__media-content .ico { background: rgba(217,170,144,.22); margin-bottom: var(--s4); }
.bento__media-content .ico svg { stroke: var(--c-amber-300); }
.bento__media-content h3 { color: #fff; margin-top: 0; }
.bento__media-content p { color: rgba(235,229,220,.85); margin-top: var(--s2); }

/* ---------- TCO (karşılaştırma) ---------- */
.tco__grid { display:grid; grid-template-columns: repeat(3,1fr); gap: var(--s5); }
.tco-col { background: rgba(255,255,255,.04); border:1px solid var(--c-line-dark); border-radius: var(--r-xl); padding: var(--s8) var(--s6); }
.tco-col--win { background: linear-gradient(160deg, rgba(217,170,144,.18), rgba(217,170,144,.05)); border-color: var(--c-amber-400); position:relative; }
.tco-col__badge { position:absolute; top:-12px; left: var(--s6); background: var(--c-amber-400); color: var(--c-petrol-900); font-size:.74rem; font-weight:700; padding: 5px 12px; border-radius: var(--r-full); }
.tco-col h3 { color:#fff; font-size: 1.2rem; margin-bottom: var(--s2); }
.tco-col__cap { font-size:.86rem; color: var(--text-muted-dark); margin-bottom: var(--s6); min-height: 2.4em; }
.tco-col--win h3 { color: var(--c-amber-300); }
.tco-row { display:flex; align-items:flex-start; gap: var(--s3); padding-block: var(--s3); border-top: 1px solid rgba(255,255,255,.07); font-size:.92rem; }
.tco-row:first-of-type { border-top:0; }
.tco-row svg { width: 20px; height: 20px; flex:none; margin-top:1px; }
.tco-row.no svg { stroke: var(--c-terra-600); } .tco-row.yes svg { stroke: var(--c-amber-300); } .tco-row.maybe svg { stroke: var(--text-muted-dark); }
.tco-row span { color: var(--text-on-dark); } .tco-row.no span { color: var(--text-muted-dark); }
.tco__foot { margin-top: var(--s8); text-align:center; }

/* ---------- Yorumlar ---------- */
.reviews__note { text-align:center; margin: calc(var(--s8) * -1) auto var(--s10); max-width: 560px; }
.review-grid { display:grid; grid-template-columns: repeat(3,1fr); gap: var(--s5); }
.review-card { background: var(--surface-raised); border:1px solid var(--border-subtle); border-radius: var(--r-xl); padding: var(--s8); display:flex; flex-direction:column; gap: var(--s4); }
.stars { display:flex; gap: 3px; }
.stars svg { width: 18px; height: 18px; fill: var(--c-amber-400); stroke:none; }
.review-card p { font-size: 1rem; color: var(--text-strong); font-style: italic; flex:1; }
.review-card__who { display:flex; align-items:center; gap: var(--s3); }
.review-card__avatar { width: 42px; height: 42px; border-radius:50%; background: var(--c-petrol-700); color: var(--c-cream-50); display:grid; place-items:center; font-weight:700; font-size:.95rem; flex:none; }
.review-card__who b { font-size:.94rem; } .review-card__who span { display:block; font-size:.8rem; color: var(--text-muted); }

/* ---------- Abonelik / bakım ---------- */
.subs { display:grid; grid-template-columns: 1.1fr .9fr; gap: clamp(32px,5vw,72px); align-items:center; }
.subs__list { margin-top: var(--s6); display:grid; gap: var(--s4); }
.subs__item { display:flex; gap: var(--s4); align-items:flex-start; }
.subs__item .check { width: 30px; height: 30px; border-radius:50%; background: rgba(46,125,91,.12); display:grid; place-items:center; flex:none; }
.subs__item .check svg { width: 18px; height: 18px; stroke: #2E7D5B; }
.subs__item b { display:block; font-size: 1.05rem; }
.subs__item span { font-size:.92rem; color: var(--text-muted); }
.subs__visual { background: linear-gradient(150deg, var(--c-petrol-700), var(--c-petrol-900)); border-radius: var(--r-2xl); padding: var(--s10); color:#fff; box-shadow: var(--e3); }
.subs__visual .big { font-size: clamp(1.5rem,3vw,2.1rem); font-weight: 800; letter-spacing:-0.03em; line-height:1.15; }
.subs__visual .big em { color: var(--c-amber-300); font-style: normal; }
.subs__visual p { color: var(--text-muted-dark); margin-top: var(--s4); }

/* ---------- Final CTA ---------- */
.final-cta { background: var(--surface-darker); position: relative; overflow:hidden; }
.final-cta::before { content:""; position:absolute; inset:0; background: radial-gradient(60% 120% at 50% 0%, rgba(217,170,144,.22), transparent 60%); }
.final-cta__inner { position:relative; text-align:center; max-width: 720px; margin-inline:auto; }
.final-cta h2 { font-size: clamp(2rem,4.6vw,3.2rem); color:#fff; }
.final-cta p { color: var(--text-muted-dark); margin-top: var(--s5); font-size: 1.1rem; }
.final-cta__actions { display:flex; flex-wrap:wrap; gap: var(--s4); justify-content:center; margin-top: var(--s8); }
.final-cta__phones { margin-top: var(--s8); display:flex; flex-wrap:wrap; gap: var(--s6); justify-content:center; }
.final-cta__phones a { display:inline-flex; align-items:center; gap: var(--s2); color: var(--c-cream-100); font-weight:600; }
.final-cta__phones svg { width:20px;height:20px; stroke: var(--c-amber-400); }

/* ---------- Footer ---------- */
.footer { background: #010008; color: var(--text-muted-dark); padding-block: var(--s16) var(--s8); }
.footer__top { display:grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--s10); padding-bottom: var(--s10); border-bottom: 1px solid var(--c-line-dark); }
.footer .brand { color:#fff; } .footer .brand small { color: var(--text-muted-dark); }
.footer__col h3 { color: var(--c-cream-100); font-size:.82rem; letter-spacing:.12em; text-transform:uppercase; margin-bottom: var(--s5); font-weight:600; }
.footer__col a, .footer__col p { display:block; font-size:.94rem; margin-bottom: var(--s3); color: var(--text-muted-dark); }
.footer__col a:hover { color: var(--c-amber-300); }
.footer__bottom { display:flex; flex-wrap:wrap; gap: var(--s4); justify-content:space-between; align-items:center; margin-top: var(--s8); font-size:.84rem; }
.footer__bottom .made { color: var(--text-muted-dark); }
.footer__bottom .made a { color: var(--c-amber-300); text-decoration: underline; text-underline-offset: 2px; }

/* ---------- Toast ---------- */
.toast-wrap { position: fixed; bottom: 24px; right: 24px; z-index: var(--z-toast); display:flex; flex-direction:column; gap: var(--s3); pointer-events:none; }
.toast { display:flex; align-items:center; gap: var(--s3); background: var(--c-petrol-900); color: var(--c-cream-50); padding: 14px 18px; border-radius: var(--r-lg); box-shadow: var(--e3); border:1px solid var(--c-line-dark); transform: translateX(120%); opacity:0; transition: transform var(--dur-base) var(--ease-premium), opacity var(--dur-base); max-width: 320px; }
.toast.show { transform: translateX(0); opacity:1; }
.toast svg { width: 22px; height:22px; stroke: var(--c-amber-400); flex:none; }
.toast b { display:block; font-size:.92rem; } .toast span { font-size:.8rem; color: var(--text-muted-dark); }

/* ---------- Cart drawer ---------- */
.cart-drawer { position: fixed; inset: 0; z-index: var(--z-cart); visibility: hidden; }
.cart-drawer.open { visibility: visible; }
.cart-drawer__scrim { position:absolute; inset:0; background: rgba(2,0,13,.5); opacity:0; transition: opacity var(--dur-base); }
.cart-drawer.open .cart-drawer__scrim { opacity:1; }
.cart-drawer__panel { position:absolute; top:0; right:0; height:100%; width: min(400px, 92vw); background: var(--surface-base); box-shadow: var(--e3); padding: var(--s8); transform: translateX(100%); transition: transform var(--dur-slow) var(--ease-premium); display:flex; flex-direction:column; }
.cart-drawer.open .cart-drawer__panel { transform: translateX(0); }
.cart-drawer__head { display:flex; align-items:center; justify-content:space-between; margin-bottom: var(--s6); }
.cart-drawer__head h3 { font-size: 1.3rem; }
.cart-close { width:42px;height:42px;border-radius:50%; display:grid;place-items:center; background: var(--c-white); box-shadow: var(--e1); }
.cart-close svg { width:20px;height:20px; stroke: var(--text-strong); }
.cart-demo-note { font-size:.86rem; color: var(--text-muted); background: var(--surface-soft); border-radius: var(--r-md); padding: var(--s4); margin-bottom: var(--s5); display:flex; gap: var(--s3); }
.cart-demo-note svg { width:20px;height:20px; stroke: var(--c-terra-600); flex:none; }
.cart-items { display:flex; flex-direction:column; gap: var(--s3); overflow-y:auto; flex:1; }
.cart-item { display:flex; align-items:center; gap: var(--s4); background: var(--surface-raised); border:1px solid var(--border-subtle); border-radius: var(--r-md); padding: var(--s3); }
.cart-item img { width: 50px; height:50px; object-fit:contain; background: var(--c-cream-100); border-radius: var(--r-sm); flex:none; }
.cart-item b { font-size:.9rem; } .cart-item span { font-size:.78rem; color: var(--text-muted); }
.cart-item .qty { margin-left:auto; font-weight:700; color: var(--c-terra-600); }
.cart-empty { text-align:center; color: var(--text-muted); padding: var(--s12) var(--s4); }
.cart-drawer__foot { margin-top: var(--s5); padding-top: var(--s5); border-top:1px solid var(--border-subtle); }

/* ---------- Reveal animation (progressive enhancement) ----------
   Default GÖRÜNÜR — JS yoksa / IO başarısızsa içerik kaybolmaz (boş-içerik bug önle).
   .js class'ı (head inline script) varsa gizlenip scroll'da reveal edilir. */
.reveal { opacity:1; transform: none; }
.js .reveal { opacity:0; transform: translateY(26px); transition: opacity var(--dur-slow) var(--ease), transform var(--dur-slow) var(--ease); }
.js .reveal.in { opacity:1; transform: none; }
.js .reveal[data-delay="1"]{ transition-delay:.08s } .js .reveal[data-delay="2"]{ transition-delay:.16s }
.js .reveal[data-delay="3"]{ transition-delay:.24s } .js .reveal[data-delay="4"]{ transition-delay:.32s }

/* ---------- Responsive ---------- */
@media (max-width: 1024px) {
  .product-grid { grid-template-columns: repeat(2,1fr); }
  .steps { grid-template-columns: repeat(2,1fr); }
  .step:not(:last-child)::after { display:none; }
  .bento { grid-template-columns: repeat(2,1fr); }
  .bento__card--wide { grid-column: span 2; }
}
@media (max-width: 860px) {
  .nav__links, .header__cta .btn { display: none; }
  .nav.open .nav__links {
    display: flex; flex-direction: column; gap: var(--s5);
    position: absolute; top: 74px; left: 0; right: 0;
    background: rgba(246,242,236,.97);
    backdrop-filter: saturate(180%) blur(16px);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    padding: var(--s6) var(--gutter) var(--s8);
    box-shadow: var(--e2); border-top: 1px solid var(--border-subtle);
  }
  .nav.open .nav__links a { font-size: 1.1rem; padding-block: 8px; }
  .burger { display: block; }
  .hero__inner { grid-template-columns: 1fr; text-align:center; }
  .hero__content { max-width: none; margin-inline:auto; }
  .hero__cta, .hero__pills { justify-content:center; }
  .hero__visual { margin-top: var(--s8); }
  .hero__chip--tds { left: 0; } .hero__chip--install { right: 0; }
  .problem__grid, .subs { grid-template-columns: 1fr; }
  .tco__grid, .review-grid { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 560px) {
  body { font-size: 16px; }
  .product-grid { grid-template-columns: 1fr; }
  .steps, .bento { grid-template-columns: 1fr; }
  .contaminants { grid-template-columns: 1fr; }
  .footer__top { grid-template-columns: 1fr; gap: var(--s8); }
  .hero__chip { display:none; }
  .toast-wrap { left: 16px; right: 16px; bottom: 16px; }
  .toast { max-width: none; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
  .reveal, .js .reveal { opacity:1 !important; transform:none !important; }
  .trust__track { animation: none !important; }
}