/* EksperOne tanıtım sitesi. Tasarım dili "Kâğıt ve mürekkep" (EksperOne UI paketi, A yönü): sıcak kâğıt zemin, mürekkep
   rengi birincil düğme, tek vurgu petrol; plaka mavisi ve mühür kırmızısı yalnızca alana özgü ayrıntılarda. Yazı: her yerde
   Inter (sayılarda eşit genişlikte rakamlar), yalnızca logo yazısı Hanken Grotesk; ikisi de siteyle barındırılır, harici istek yok. */

@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/inter-latin-ext.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;
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../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+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}
/* Yalnızca logodaki "EksperOne" yazısı için (ASCII; latin alt kümesi yeterli). */
@font-face {
  font-family: "Hanken Grotesk";
  font-style: normal;
  font-weight: 100 900;
  font-display: swap;
  src: url("../fonts/hanken-grotesk-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+20AC, U+2122, U+2191, U+2193, U+2212, U+2215, U+FEFF, U+FFFD;
}

/* ---------------------------------------------------------------- tokens
   Palet "Kâğıt ve mürekkep" (EksperOne UI paketi, A yönü):
   kâğıt   #F5F3EE  — ekspertiz çalışma formunun sıcak zemini
   mürekkep #16181B — metin ve birincil düğme (renk yalnızca anlam taşıdığında)
   petrol  #0D4A43  — tek marka vurgusu: bağlantı, etkin durum, odak halkası (uygulamanın teal'inin olgun hâli)
   plaka   #1F3A93  — yalnızca plakanın TR şeridi
   mühür   #A3341F  — vizör köşeleri, "Rapora Hazır" mührü, hata; sayfada 2–3 yerde
   Kontrast (WCAG): mürekkep/kâğıt 16.0 · ikincil/kart 4.9 · petrol/kâğıt 9.1 · mühür/kart 6.6 · düğme kenarı/kâğıt 3.5 */
:root {
  color-scheme: light dark;
  --bg: #F5F3EE;
  --bg-alt: #ECE9E2;
  --surface: #FBFAF7;
  --ink: #16181B;
  --ink-2: #43474E;
  --muted: #61656C;
  --line: #E1DED6;
  --line-strong: #85817A;           /* etkileşimli öğe kenarı: zemine karşı ≥3:1 */
  --hair: rgb(22 24 27 / 0.10);

  --brand: #0D4A43;
  --brand-soft: #E2ECE8;
  --brand-text: #0D4A43;

  --btn: #16181B;
  --btn-hover: #2C2F34;
  --btn-ink: #FBFAF7;

  --plate: #1F3A93;
  --stamp: #A3341F;
  --stamp-soft: #F9E9E4;

  --deep: #0C2925;
  --deep-ink: #F1EFEA;
  --deep-muted: #A9BDB8;
  --deep-line: #1F433D;
  --deep-brand: #7CC4B6;

  --danger: #A3341F;
  --ok: #0D6A45;
  --ring: #0D4A43;

  --shadow-sm: 0 0 0 1px var(--hair), 0 1px 2px rgb(22 24 27 / 0.04);
  --shadow: 0 0 0 1px var(--hair), 0 1px 2px rgb(22 24 27 / 0.05), 0 24px 40px -24px rgb(22 24 27 / 0.22);
  --shadow-lg: 0 0 0 1px var(--hair), 0 2px 4px rgb(22 24 27 / 0.05), 0 40px 80px -32px rgb(22 24 27 / 0.38);

  /* Boşluk: 4 px tabanlı ölçek (ham değerler) → anlamsal jetonlar (bileşenler yalnızca bunları kullanır). */
  --space-1: 0.25rem;  /* 4 */
  --space-2: 0.5rem;   /* 8 */
  --space-3: 0.75rem;  /* 12 */
  --space-4: 1rem;     /* 16 */
  --space-5: 1.25rem;  /* 20 */
  --space-6: 1.5rem;   /* 24 */
  --space-8: 2rem;     /* 32 */
  --space-10: 2.5rem;  /* 40 */
  --space-12: 3rem;    /* 48 */
  --card-padding: var(--space-6);
  --card-gap: var(--space-5);      /* kart ızgarası içindeki aralık */
  --block-gap: var(--space-10);    /* ızgaradan farklı türde bir bloğa geçiş: ızgara aralığının 2 katı */

  /* Köşe ölçeği: yalnızca bu beş değer. */
  --r-xs: 6px;    /* plaka, çip */
  --r-sm: 10px;   /* düğme, alan */
  --r: 14px;      /* kart */
  --r-lg: 20px;   /* büyük panel */
  --r-full: 999px;

  --max: 1180px;
  --font: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --logo-font: "Hanken Grotesk", var(--font);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);     /* kritik sönümlü yay gibi: taşmadan yerine oturur */
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
}

/* Koyu tema: sistem tercihi (kullanıcı açık temayı seçmediyse) ya da tema düğmesiyle seçilen koyu tema.
   İki blok aynı jetonları taşır; biri değişirse diğeri de değişmeli. */
@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --bg: #0E0F11;
    --bg-alt: #141518;
    --surface: #1A1B1F;
    --ink: #F1EFEA;
    --ink-2: #BDBAB3;
    --muted: #8C8A85;
    --line: #2A2B30;
    --line-strong: #66635E;
    --hair: rgb(255 255 255 / 0.08);

    --brand: #7CC4B6;
    --brand-soft: #15302C;
    --brand-text: #7CC4B6;

    --btn: #F1EFEA;
    --btn-hover: #FFFFFF;
    --btn-ink: #16181B;

    --plate: #1F3A93;   /* plaka gerçekçi kalır: koyu temada da beyaz zemin + mavi şerit */
    --stamp: #E58A72;
    --stamp-soft: #2A1814;

    --deep: #12302B;
    --deep-line: #24463F;

    --danger: #E58A72;
    --ok: #5FC795;
    --ring: #7CC4B6;

    /* Koyu temada gölge yerine yüzey açıklığı + ince kenar. */
    --shadow-sm: 0 0 0 1px var(--hair);
    --shadow: 0 0 0 1px var(--hair), 0 24px 40px -24px rgb(0 0 0 / 0.6);
    --shadow-lg: 0 0 0 1px var(--hair), 0 40px 80px -32px rgb(0 0 0 / 0.8);
  }
}
:root[data-theme="dark"] {
  --bg: #0E0F11;
  --bg-alt: #141518;
  --surface: #1A1B1F;
  --ink: #F1EFEA;
  --ink-2: #BDBAB3;
  --muted: #8C8A85;
  --line: #2A2B30;
  --line-strong: #66635E;
  --hair: rgb(255 255 255 / 0.08);

  --brand: #7CC4B6;
  --brand-soft: #15302C;
  --brand-text: #7CC4B6;

  --btn: #F1EFEA;
  --btn-hover: #FFFFFF;
  --btn-ink: #16181B;

  --plate: #1F3A93;   /* plaka gerçekçi kalır: koyu temada da beyaz zemin + mavi şerit */
  --stamp: #E58A72;
  --stamp-soft: #2A1814;

  --deep: #12302B;
  --deep-line: #24463F;

  --danger: #E58A72;
  --ok: #5FC795;
  --ring: #7CC4B6;

  /* Koyu temada gölge yerine yüzey açıklığı + ince kenar. */
  --shadow-sm: 0 0 0 1px var(--hair);
  --shadow: 0 0 0 1px var(--hair), 0 24px 40px -24px rgb(0 0 0 / 0.6);
  --shadow-lg: 0 0 0 1px var(--hair), 0 40px 80px -32px rgb(0 0 0 / 0.8);
}
:root[data-theme="light"] { color-scheme: light; }
:root[data-theme="dark"] { color-scheme: dark; }

/* ---------------------------------------------------------------- base */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.0625rem;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
  caret-color: var(--brand);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  -webkit-tap-highlight-color: transparent;
}
img, svg { display: block; max-width: 100%; }
/* Harf aralığı boyuta göre: büyük başlık sıkı, gövde 0, küçük etiket biraz açık. */
h1, h2, h3 { margin: 0; color: var(--ink); text-wrap: balance; font-weight: 650; }
h1 { font-size: clamp(2.5rem, 5.6vw, 4.25rem); line-height: 1.06; letter-spacing: -0.02em; }
h2 { font-size: clamp(1.9rem, 3.4vw, 2.6rem); line-height: 1.12; letter-spacing: -0.015em; }
h3 { font-size: 1.2rem; line-height: 1.3; letter-spacing: -0.005em; font-weight: 600; }
p { margin: 0; text-wrap: pretty; }
a { color: var(--brand-text); text-underline-offset: 3px; }
a:hover { text-decoration-thickness: 2px; }
:focus-visible { outline: 2px solid var(--ring); outline-offset: 3px; border-radius: 6px; }
::selection { background: var(--brand); color: var(--bg); }
.num { font-variant-numeric: tabular-nums; }
.sr-only { position: absolute; width: 1px; height: 1px; margin: -1px; padding: 0; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0; }

.icon { width: 1.25em; height: 1.25em; flex: none; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }

.container { width: min(var(--max), 100% - 2.5rem); margin-inline: auto; }
.section { padding-block: clamp(4.5rem, 10vw, 8rem); }
[id] { scroll-margin-top: 84px; }
.section--alt { background: var(--bg-alt); }
.section__head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 3.5rem); }
.section__head--center { margin-inline: auto; text-align: center; }
.lede { font-size: clamp(1.08rem, 1.6vw, 1.25rem); line-height: 1.55; color: var(--ink-2); margin-top: var(--space-5); }
.muted { color: var(--muted); }

.skip {
  position: absolute; left: 1rem; top: -4rem; z-index: 100;
  background: var(--surface); color: var(--ink); padding: 0.75rem 1rem; border-radius: var(--r-sm); box-shadow: var(--shadow);
}
.skip:focus { top: 1rem; }

/* Vizör köşeleri: kameradaki plaka çerçevesi. Yalnızca hero'daki ifadede ve telefondaki çekimde. */
.vf {
  --vf-c: var(--stamp); --vf-l: 12px; --vf-w: 2px;
  background:
    linear-gradient(var(--vf-c), var(--vf-c)) top left / var(--vf-l) var(--vf-w),
    linear-gradient(var(--vf-c), var(--vf-c)) top left / var(--vf-w) var(--vf-l),
    linear-gradient(var(--vf-c), var(--vf-c)) top right / var(--vf-l) var(--vf-w),
    linear-gradient(var(--vf-c), var(--vf-c)) top right / var(--vf-w) var(--vf-l),
    linear-gradient(var(--vf-c), var(--vf-c)) bottom left / var(--vf-l) var(--vf-w),
    linear-gradient(var(--vf-c), var(--vf-c)) bottom left / var(--vf-w) var(--vf-l),
    linear-gradient(var(--vf-c), var(--vf-c)) bottom right / var(--vf-l) var(--vf-w),
    linear-gradient(var(--vf-c), var(--vf-c)) bottom right / var(--vf-w) var(--vf-l);
  background-repeat: no-repeat;
}

/* ---------------------------------------------------------------- buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-2);
  min-height: 48px; padding: 0.75rem 1.35rem; border-radius: var(--r-sm);
  font: inherit; font-weight: 600; font-size: 1rem; line-height: 1.2; letter-spacing: -0.005em; text-decoration: none; white-space: nowrap;
  border: 1px solid transparent; cursor: pointer; user-select: none; -webkit-user-select: none; touch-action: manipulation;
  transition: background-color 200ms ease, border-color 200ms ease, color 200ms ease, transform 260ms var(--ease-out);
}
/* Basıldığı an tepki ver (bırakınca değil), bırakınca yumuşakça geri gelsin. */
.btn:active { transform: scale(0.97); transition-duration: 90ms; }
.btn .icon { transition: transform 260ms var(--ease-out); }
.btn:hover .icon { transform: translateX(3px); }
.btn--primary { background: var(--btn); color: var(--btn-ink); box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.08); }
.btn--primary:hover { background: var(--btn-hover); }
.btn--ghost { background: transparent; color: var(--ink); border-color: var(--line-strong); }
.btn--ghost:hover { background: var(--surface); border-color: var(--ink); }
.btn--sm { min-height: 44px; padding: 0.55rem 1rem; font-size: 0.9375rem; }
.btn[disabled] { opacity: 0.65; cursor: progress; }

/* ---------------------------------------------------------------- header (yarı saydam katman; içerik altından akar) */
.header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--bg) 74%, transparent);
  backdrop-filter: saturate(1.7) blur(20px);
  -webkit-backdrop-filter: saturate(1.7) blur(20px);
}
/* Sert çizgi yerine kaydırma kenarı: yalnızca içerik başlığın altına girince beliren yumuşak gölge. */
.header::after {
  content: ""; position: absolute; inset: 100% 0 auto; height: 18px; pointer-events: none;
  background: linear-gradient(to bottom, color-mix(in srgb, var(--ink) 7%, transparent), transparent);
  opacity: 0; transition: opacity 240ms ease;
}
.header.is-scrolled::after { opacity: 1; }
.header__inner { display: flex; align-items: center; gap: var(--space-6); height: 72px; }
.brand { font-family: var(--logo-font); display: inline-flex; align-items: center; gap: 0.6rem; min-height: 44px; color: var(--ink); text-decoration: none; font-weight: 650; font-size: 1.25rem; letter-spacing: -0.025em; }
.brand img { width: 34px; height: 34px; border-radius: 9px; }
.brand span b { color: var(--brand-text); font-weight: 650; }
.nav { display: flex; gap: 0.1rem; margin-left: auto; }
.nav a {
  color: var(--ink-2); text-decoration: none; font-weight: 500; font-size: 0.9375rem;
  padding: 0.55rem 0.8rem; border-radius: var(--r-sm); transition: color 160ms ease, background-color 160ms ease;
}
.nav a:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 6%, transparent); }
.header__actions { display: flex; align-items: center; gap: var(--space-2); }
.header__login { color: var(--ink); font-weight: 600; font-size: 0.9375rem; text-decoration: none; padding: 0.55rem 0.9rem; border-radius: var(--r-sm); }
.header__login:hover { background: color-mix(in srgb, var(--ink) 6%, transparent); }
.header__back { margin-left: auto; }
.menu-toggle {
  display: none; width: 44px; height: 44px; align-items: center; justify-content: center;
  border-radius: var(--r-sm); border: 1px solid var(--line-strong); background: var(--surface); color: var(--ink); cursor: pointer;
  transition: transform 260ms var(--ease-out);
}
.menu-toggle:active { transform: scale(0.94); transition-duration: 90ms; }
.mobile-nav { display: none; }
/* Tema düğmesi: masaüstünde menünün sağında, mobilde menü düğmesinin solunda. */
.theme-toggle {
  display: inline-flex; width: 44px; height: 44px; align-items: center; justify-content: center; flex: none;
  border-radius: var(--r-sm); border: 1px solid transparent; background: none; color: var(--ink-2); cursor: pointer;
  transition: color 160ms ease, background-color 160ms ease, transform 260ms var(--ease-out);
}
.theme-toggle:hover { color: var(--ink); background: color-mix(in srgb, var(--ink) 6%, transparent); }
.theme-toggle:active { transform: scale(0.94); transition-duration: 90ms; }
.theme-toggle .icon { width: 20px; height: 20px; }
.header__back + .theme-toggle { margin-left: calc(var(--space-2) * -1); }
/* Tema değişirken renkler sert atlamasın: kısa bir geçiş (yalnızca değişim anında, JS ekler). */
.theme-anim, .theme-anim *, .theme-anim *::before, .theme-anim *::after {
  transition: background-color 280ms ease, color 280ms ease, border-color 280ms ease, box-shadow 280ms ease, fill 280ms ease !important;
}

@media (max-width: 960px) {
  .nav, .header__actions { display: none; }
  .menu-toggle { display: inline-flex; }
  .nav + .theme-toggle { margin-left: auto; }
  .mobile-nav { border-top: 1px solid var(--line); background: var(--surface); }
  /* Menü, açan düğmenin olduğu sağ üstten açılır. */
  .mobile-nav:not([hidden]) { display: block; transform-origin: top right; animation: drop-in 260ms var(--ease-out); }
  .mobile-nav .container { display: grid; gap: var(--space-1); padding-block: var(--space-3) var(--space-5); }
  .mobile-nav a:not(.btn) { color: var(--ink); text-decoration: none; font-weight: 500; font-size: 1.05rem; padding: 0.85rem 0.25rem; border-bottom: 1px solid var(--line); }
  .mobile-nav .btn { margin-top: var(--space-3); }
}
@keyframes drop-in { from { opacity: 0; transform: translateY(-6px) scale(0.99); } }

/* ---------------------------------------------------------------- hero */
.hero { position: relative; overflow: hidden; padding-block: clamp(3.5rem, 8vw, 6rem) clamp(4.5rem, 9vw, 7rem); }
.hero__grid { position: relative; z-index: 1; display: grid; grid-template-columns: 1.05fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.hero h1 { max-width: 14.5ch; }
/* Başlıktaki anahtar ifade vizörle "okunur": köşeler + soldan sağa bir kez geçen tarama çizgisi. */
.hero__mark { position: relative; display: inline-block; padding: 0 0.12em; margin-inline: -0.04em; --vf-l: 0.26em; --vf-w: 3px; color: var(--brand-text); }
.hero__mark::after {
  content: ""; position: absolute; top: 0.1em; bottom: 0.1em; left: 0; width: 2px; border-radius: 2px;
  background: var(--stamp); box-shadow: 0 0 16px 3px color-mix(in srgb, var(--stamp) 50%, transparent);
  opacity: 0; animation: scan 1.4s var(--ease-in-out) 0.5s 1 both;
}
@keyframes scan {
  0% { left: 0; opacity: 0; }
  15% { opacity: 1; }
  85% { opacity: 1; }
  100% { left: calc(100% - 2px); opacity: 0; }
}
.hero__actions { display: flex; flex-wrap: wrap; gap: var(--space-3); margin-top: var(--space-8); }
.hero__proof { display: grid; gap: var(--space-2); margin: var(--space-10) 0 0; padding: 0; list-style: none; color: var(--ink-2); font-size: 0.9375rem; }
.hero__proof li { display: flex; align-items: center; gap: 0.65rem; }
.hero__proof .icon { color: var(--brand-text); width: 1.1em; height: 1.1em; }
@media (max-width: 960px) { .hero__grid { grid-template-columns: 1fr; } .hero h1 { max-width: 16ch; } }
@media (max-width: 480px) { .hero__actions .btn { width: 100%; } }

/* ---------------------------------------------------------------- plaka (markanın tipografik imzası) */
.plate {
  display: inline-flex; align-items: stretch; flex: none; overflow: hidden; white-space: nowrap;
  font-variant-numeric: tabular-nums; font-weight: 600; font-size: 0.78rem; letter-spacing: 0.04em; line-height: 1.5;
  border: 1.5px solid #16181B; border-radius: var(--r-xs); background: #FFFFFF; color: #16181B; padding-right: 0.4em;
}
.plate::before {
  content: "TR"; display: grid; place-items: end center; padding: 0 0.25em 0.1em;
  font-size: 0.55em; font-weight: 700; letter-spacing: 0; color: #FFFFFF; background: var(--plate); margin-right: 0.7em;
}
.plate--lg { font-size: 1.15rem; border-width: 2px; }
/* Kartın plakası kamerada okunmuş gibi: mühür renginde vizör köşeleri. */
.dossier__plate { display: inline-flex; --vf-l: 10px; padding: 7px; margin: -7px; }

/* ---------------------------------------------------------------- dosya kartı (sahte tarayıcı penceresi yerine) */
.preview { position: relative; display: grid; justify-items: end; }
.dossier {
  position: relative; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow-lg);
  padding: clamp(1.25rem, 3vw, 1.75rem); display: grid; gap: var(--space-5); width: 100%; max-width: 33rem;
}
/* Kâğıt gibi: üst iç kenarda ışık yakalayan ince çizgi. */
.dossier::before { content: ""; position: absolute; inset: 0; border-radius: inherit; pointer-events: none; box-shadow: inset 0 1px 0 rgb(255 255 255 / 0.6); }
.dossier__head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); flex-wrap: wrap; }
.dossier__no { display: grid; text-align: right; font-variant-numeric: tabular-nums; font-size: 0.95rem; font-weight: 500; color: var(--ink); }
.dossier__no small, .dossier__meta dt { font-size: 0.8125rem; font-weight: 500; letter-spacing: 0.01em; color: var(--muted); }
.dossier__meta { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3) var(--space-6); margin: 0; padding-block: var(--space-4); border-block: 1px solid var(--line); }
.dossier__meta dd { margin: 0; font-weight: 500; }
.dossier__meta .num { font-weight: 500; }
.dossier__thumbs { display: grid; grid-template-columns: repeat(6, 1fr); gap: 6px; }
.dossier__thumbs i { aspect-ratio: 4 / 3; border-radius: var(--r-xs); background: linear-gradient(150deg, #9AA19E, #4D5552); }
.dossier__thumbs i:nth-child(2) { background: linear-gradient(150deg, #B7B0A4, #5E574D); }
.dossier__thumbs i:nth-child(3) { background: linear-gradient(150deg, #8E9AA6, #3E4852); }
.dossier__thumbs i:nth-child(4) { background: linear-gradient(150deg, #A7A39A, #545049); }
.dossier__thumbs i:nth-child(5) { background: linear-gradient(150deg, #95A39C, #44514B); }
.dossier__thumbs b {
  display: grid; place-items: center; aspect-ratio: 4 / 3; border-radius: var(--r-xs);
  font-variant-numeric: tabular-nums; font-size: 0.75rem; font-weight: 500; color: var(--ink-2); background: var(--bg-alt);
}
/* Durum çubuğu: basınca dosya ilerler (Response: pointerdown'da). */
.track { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; }
.track button {
  display: grid; gap: 0.45rem; min-height: 44px; padding: 0 0 0.25rem; text-align: left; cursor: pointer;
  font: inherit; font-size: 0.8125rem; font-weight: 500; color: var(--muted); background: none; border: 0; border-radius: 4px;
  touch-action: manipulation;
}
.track button::before { content: ""; height: 4px; border-radius: 2px; background: var(--line); transition: background-color 260ms var(--ease-out); }
.track button.is-done::before { background: color-mix(in srgb, var(--brand) 55%, var(--line)); }
.track button.is-on { color: var(--ink); font-weight: 600; }
.track button.is-on::before { background: var(--brand); }
.track button:hover:not(.is-on) { color: var(--ink-2); }
.dossier__hint { font-size: 0.8125rem; color: var(--muted); margin-top: calc(var(--space-3) * -1); }
/* Mühür: sayfadaki tek "delight" anı; yalnızca son adımda, hafif taşmayla basılır. */
.stamp {
  position: absolute; right: clamp(1rem, 4vw, 1.75rem); top: 46%; z-index: 2; pointer-events: none;
  padding: 0.35rem 0.75rem; border: 2.5px solid var(--stamp); border-radius: var(--r-xs);
  font-variant-numeric: tabular-nums; font-weight: 600; font-size: 0.95rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--stamp);
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  transform: rotate(-9deg) scale(1.5); opacity: 0; visibility: hidden;
}
.stamp.is-shown { visibility: visible; animation: stamp 420ms var(--ease-out) forwards; }
@keyframes stamp {
  0% { opacity: 0; transform: rotate(-9deg) scale(1.5); }
  60% { opacity: 1; transform: rotate(-9deg) scale(0.94); }
  100% { opacity: 1; transform: rotate(-9deg) scale(1); }
}

@media (max-width: 960px) { .preview { margin: 0; } .dossier { max-width: none; } }
@media (max-width: 420px) { .dossier__thumbs { grid-template-columns: repeat(4, 1fr); } .dossier__thumbs i:nth-child(n+4) { display: none; } }

/* ---------------------------------------------------------------- trust strip */
.strip { border-block: 1px solid var(--line); background: var(--surface); }
.strip__inner { display: grid; grid-template-columns: repeat(4, 1fr); }
.strip__item { display: flex; align-items: center; gap: var(--space-3); color: var(--ink-2); font-weight: 500; font-size: 0.9375rem; padding: var(--space-5); border-left: 1px solid var(--line); }
.strip__item:first-child { border-left: 0; padding-left: 0; }
.strip__item .icon { width: 1.25rem; height: 1.25rem; color: var(--brand-text); }
@media (max-width: 860px) {
  .strip__inner { grid-template-columns: 1fr 1fr; }
  .strip__item { border-left: 0; padding: var(--space-4) 0; }
  .strip__item:nth-child(n+3) { border-top: 1px solid var(--line); }
}
@media (max-width: 480px) { .strip__inner { grid-template-columns: 1fr; } .strip__item:nth-child(2) { border-top: 1px solid var(--line); } }

/* ---------------------------------------------------------------- cards (tıklanmaz: üzerine gelince değişmez) */
.grid { display: grid; gap: var(--card-gap); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 1024px) { .grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 860px) { .grid--3 { grid-template-columns: 1fr; } }
@media (max-width: 560px) { .grid--4 { grid-template-columns: 1fr; } }

.card { background: var(--surface); border-radius: var(--r); padding: var(--card-padding); box-shadow: var(--shadow-sm); }
.card h3 { margin-top: var(--space-4); }
.card p { margin-top: var(--space-2); color: var(--ink-2); font-size: 0.9375rem; }
/* İkon kutusu yok: ince çizgili ikon, metinle hizalı. */
.card__icon { display: block; color: var(--brand-text); }
.card__icon .icon { width: 24px; height: 24px; stroke-width: 1.75; }
.card--pain .card__icon { color: var(--stamp); }

.statement {
  margin-top: var(--block-gap); padding: var(--card-padding) var(--space-8); border-radius: var(--r); background: var(--deep); color: var(--deep-ink);
  display: flex; align-items: center; gap: var(--space-4); font-size: clamp(1.05rem, 1.6vw, 1.2rem); font-weight: 500; letter-spacing: -0.01em;
}
.statement .icon { width: 1.5rem; height: 1.5rem; color: var(--deep-brand); }

.soon {
  margin-top: var(--block-gap); display: flex; align-items: center; gap: var(--space-5); flex-wrap: wrap;
  padding: var(--card-padding); border-radius: var(--r); border: 1px dashed var(--line-strong);
}
.soon__text { flex: 1 1 22rem; }
.soon__text p { margin-top: var(--space-1); color: var(--ink-2); font-size: 0.9375rem; }
.soon__badges { display: flex; flex-wrap: wrap; gap: var(--space-2); }

/* ---------------------------------------------------------------- steps (form satırları gibi numaralı) */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); counter-reset: step; list-style: none; margin: 0; padding: 0; border-top: 1px solid var(--line-strong); }
.step { position: relative; padding: var(--space-8) var(--space-8) var(--space-2) 0; }
.step + .step { padding-left: var(--space-8); border-left: 1px solid var(--line); }
.step::before {
  counter-increment: step; content: counter(step, decimal-leading-zero);
  display: block; font-variant-numeric: tabular-nums; font-size: clamp(2.4rem, 4.5vw, 3.25rem); font-weight: 500; line-height: 1; letter-spacing: -0.02em;
  color: var(--brand-text); margin-bottom: var(--space-5);
}
.step::after { content: ""; position: absolute; top: -1px; left: 0; width: 3rem; height: 3px; background: var(--brand); }
.step + .step::after { left: var(--space-8); }
.step p { margin-top: var(--space-2); color: var(--ink-2); font-size: 0.9375rem; }
@media (max-width: 860px) {
  .steps { grid-template-columns: 1fr; border-top: 0; }
  .step, .step + .step { padding: var(--space-6) 0 var(--space-1); border-left: 0; border-top: 1px solid var(--line-strong); }
  .step + .step::after { left: 0; }
  .step + .step { margin-top: var(--space-4); }
}

/* ---------------------------------------------------------------- split (desktop app) */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
/* Izgara öğeleri içeriklerinin en geniş satırına göre genişleyip sayfayı taşırmasın. */
.split > *, .hero__grid > *, .demo > * { min-width: 0; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; } }
.checks { list-style: none; padding: 0; margin: var(--space-6) 0 0; display: grid; gap: var(--space-3); }
.checks li { display: flex; gap: var(--space-3); align-items: flex-start; color: var(--ink-2); }
.checks .icon { color: var(--brand-text); margin-top: 0.2rem; }
.badge-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin-top: var(--space-6); }
.badge { display: inline-flex; align-items: center; gap: 0.4rem; border: 1px solid var(--line); border-radius: var(--r-full); padding: 0.35rem 0.85rem; font-size: 0.875rem; font-weight: 500; color: var(--ink-2); background: var(--surface); }
.badge .icon { width: 1rem; height: 1rem; color: var(--brand-text); }

.sorter { background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow); padding: var(--space-5); display: grid; gap: var(--space-3); font-size: 0.9rem; }
.sorter__src { display: flex; align-items: center; gap: var(--space-3); padding: 0.85rem 1rem; border-radius: var(--r-sm); background: var(--deep); color: var(--deep-ink); font-variant-numeric: tabular-nums; font-size: 0.8125rem; font-weight: 500; }
.sorter__src .icon { color: var(--deep-brand); }
.sorter__arrow { justify-self: center; color: var(--brand-text); transform: rotate(90deg); }
.folder { display: flex; align-items: center; justify-content: space-between; gap: var(--space-3); padding: 0.7rem 0.9rem; border: 1px solid var(--line); border-radius: var(--r-sm); background: var(--bg); }
.folder > span { display: flex; flex-wrap: wrap; align-items: center; gap: 0.35rem 0.6rem; min-width: 0; }
.folder .num { font-size: 0.875rem; }
.folder small { color: var(--muted); font-variant-numeric: tabular-nums; font-size: 0.75rem; white-space: nowrap; }
.folder--review { border-style: dashed; border-color: color-mix(in srgb, var(--stamp) 50%, transparent); color: var(--stamp); background: var(--stamp-soft); }
.folder--review small { color: var(--stamp); }

/* ---------------------------------------------------------------- pricing */
.offer {
  display: grid; grid-template-columns: 1.2fr 1fr; gap: var(--space-8); align-items: center;
  border-radius: var(--r-lg); padding: clamp(1.75rem, 5vw, 3.5rem); background: var(--deep); color: var(--deep-ink);
}
.offer h2 { color: var(--deep-ink); }
.offer p { color: var(--deep-muted); margin-top: var(--space-4); }
.offer .checks li { color: var(--deep-ink); }
.offer .checks .icon { color: var(--deep-brand); }
.offer__cta { display: grid; gap: var(--space-3); justify-items: start; }
.offer__cta small { color: var(--deep-muted); }
/* Koyu panelde düğme tersine döner: kâğıt zemin, mürekkep yazı. */
.offer .btn--primary { background: var(--deep-ink); color: #16181B; }
.offer .btn--primary:hover { background: #FFFFFF; }
@media (prefers-color-scheme: dark) { :root:not([data-theme="light"]) .offer { box-shadow: 0 0 0 1px var(--deep-line); } }
:root[data-theme="dark"] .offer { box-shadow: 0 0 0 1px var(--deep-line); }
@media (max-width: 860px) { .offer { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- faq (yükseklik değil grid satırı açılır) */
.faq { max-width: 42rem; margin-inline: auto; border-top: 1px solid var(--line-strong); }
.faq details { border-bottom: 1px solid var(--line); }
.faq summary {
  list-style: none; cursor: pointer; display: flex; align-items: center; justify-content: space-between; gap: var(--space-4);
  padding: var(--space-5) var(--space-1); font-weight: 600; font-size: 1.0625rem; letter-spacing: -0.01em; min-height: 60px;
  transition: color 160ms ease;
}
.faq summary:hover { color: var(--brand-text); }
.faq summary::-webkit-details-marker { display: none; }
.faq summary .icon {
  width: 32px; height: 32px; padding: 7px; border-radius: 50%; border: 1px solid var(--line-strong); color: var(--ink-2);
  transition: transform 320ms var(--ease-out), background-color 200ms ease, color 200ms ease, border-color 200ms ease;
}
.faq details[open] summary .icon { transform: rotate(180deg); background: var(--ink); border-color: var(--ink); color: var(--bg); }
.faq details p { padding: 0 var(--space-12) var(--space-6) var(--space-1); color: var(--ink-2); }
.faq details[open] p { animation: drop-in 300ms var(--ease-out); }

/* ---------------------------------------------------------------- demo form */
.demo { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(2rem, 5vw, 4rem); align-items: start; }
@media (max-width: 960px) { .demo { grid-template-columns: 1fr; } }
.demo__aside .checks { margin-top: var(--space-6); }
.contact-alt { margin-top: var(--space-8); display: flex; align-items: center; gap: 0.6rem; color: var(--ink-2); }
.form {
  position: relative; background: var(--surface); border-radius: var(--r-lg); box-shadow: var(--shadow);
  padding: clamp(1.25rem, 3vw, 2rem); display: grid; gap: var(--space-5);
}
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-5); }
@media (max-width: 560px) { .form__row { grid-template-columns: 1fr; } }
.field { display: grid; gap: 0.4rem; }
.field label { font-weight: 600; font-size: 0.9375rem; }
.field label .req { color: var(--stamp); margin-left: 0.15rem; }
.field label .opt { color: var(--muted); font-weight: 400; font-size: 0.875rem; margin-left: 0.3rem; }
.field input, .field select, .field textarea {
  font: inherit; font-size: 1rem; color: var(--ink); background: var(--bg); width: 100%;
  border: 1px solid var(--line-strong); border-radius: var(--r-sm); padding: 0.7rem 0.9rem; min-height: 48px;
  transition: border-color 160ms ease, box-shadow 200ms ease, background-color 160ms ease;
}
.field textarea { min-height: 116px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  outline: none; border-color: var(--ring); background: var(--surface);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--ring) 22%, transparent);
}
.field [aria-invalid="true"] { border-color: var(--danger); }
.field__error { color: var(--danger); font-size: 0.875rem; min-height: 0; }
.field .consent { display: flex; gap: var(--space-3); align-items: flex-start; font-size: 0.9375rem; font-weight: 400; color: var(--ink-2); cursor: pointer; }
.consent input { width: 22px; height: 22px; min-height: 0; margin-top: 0.15rem; accent-color: var(--brand); flex: none; }
.hp { position: absolute; left: -10000px; width: 1px; height: 1px; overflow: hidden; }
.form__status { border-radius: var(--r-sm); padding: 0.85rem 1rem; display: none; gap: 0.6rem; align-items: flex-start; font-weight: 500; }
.form__status.is-error { display: flex; background: var(--stamp-soft); color: var(--danger); }
.form__status.is-ok { display: flex; background: color-mix(in srgb, var(--ok) 12%, transparent); color: var(--ok); }
.form__note { font-size: 0.875rem; color: var(--muted); }
.form .btn--primary { width: 100%; }
.spin { animation: spin 0.9s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------------------------------------------------------------- footer */
.footer { background: var(--deep); color: var(--deep-muted); padding-block: var(--space-12) var(--space-8); font-size: 0.9375rem; }
.footer a { color: var(--deep-ink); text-decoration: none; display: inline-flex; align-items: center; min-height: 44px; }
.footer a:hover { color: #FFFFFF; text-decoration: underline; }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: var(--space-8); }
.footer .brand { color: var(--deep-ink); }
.footer .brand span b { color: var(--deep-brand); }
.footer .brand:hover { text-decoration: none; }
.footer h3 { color: var(--deep-muted); font-size: 0.8125rem; font-weight: 600; letter-spacing: 0.01em; margin-bottom: var(--space-2); }
.footer ul { list-style: none; margin: 0; padding: 0; display: grid; gap: var(--space-1); }
.footer p { margin-top: var(--space-4); max-width: 30rem; }
.to-top {
  width: 44px; height: 44px; justify-content: center; border-radius: 50%;
  border: 1px solid var(--deep-line); color: var(--deep-ink); transition: background-color 160ms ease, border-color 160ms ease, transform 260ms var(--ease-out);
}
.to-top:hover { background: color-mix(in srgb, var(--deep-ink) 8%, transparent); border-color: var(--deep-brand); text-decoration: none; }
.to-top:active { transform: scale(0.94); transition-duration: 90ms; }
.footer__bottom { margin-top: var(--space-10); padding-top: var(--space-6); border-top: 1px solid var(--deep-line); display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--space-4); font-size: 0.875rem; }
@media (max-width: 760px) { .footer__grid { grid-template-columns: 1fr; } }

/* ---------------------------------------------------------------- legal & 404 */
.legal { max-width: 46rem; }
.legal h1 { font-size: clamp(2rem, 4vw, 2.75rem); line-height: 1.08; }
.legal h2 { font-size: 1.3rem; letter-spacing: -0.015em; margin-top: var(--space-10); }
.legal p, .legal li { color: var(--ink-2); margin-top: var(--space-3); }
.legal ul { padding-left: var(--space-5); }
.legal .note { margin-top: var(--space-6); padding: var(--space-4) var(--space-5); border-radius: var(--r-sm); background: var(--bg-alt); font-variant-numeric: tabular-nums; font-size: 0.875rem; }
.code-404 { font-variant-numeric: tabular-nums; font-weight: 500; font-size: clamp(3rem, 8vw, 5rem); line-height: 1; letter-spacing: -0.02em; color: var(--brand-text); margin-bottom: var(--space-6); }

/* ---------------------------------------------------------------- accessibility preferences */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .hero__mark::after { display: none; }
  .btn:active, .menu-toggle:active, .to-top:active { transform: none; }
  .btn:hover .icon { transform: none; }
  .mobile-nav:not([hidden]), .faq details[open] p { animation: none; }
  /* Mühür yaylanmadan, kısa bir geçişle belirir. */
  .stamp { transform: rotate(-9deg); transition: opacity 150ms ease; }
  .stamp.is-shown { animation: none; opacity: 1; }
}
@media (prefers-reduced-transparency: reduce) {
  .header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; }
}
@media (prefers-contrast: more) {
  :root { --line: var(--line-strong); --muted: var(--ink-2); --hair: color-mix(in srgb, var(--ink) 30%, transparent); }
  .header { background: var(--bg); backdrop-filter: none; -webkit-backdrop-filter: none; border-bottom: 1px solid var(--ink); }
}