/* ==========================================================================
   OpticFlow — brand.css
   "Muayene bankı" kimliği: bir optik ölçüm aletinin dili. Porselen yeşil-gri
   yüzey, yeşil-siyah mürekkep, sahne için koyu enstrüman şasesi. Vurgu rengi
   mağaza config'inden gelir (try.js --of-acc'i ezer); türev tonlar bu yüzden
   color-mix ile hesaplanır — her mağaza rengiyle uyumlu kalır.
   Tip: Archivo (arayüz sesi) + IBM Plex Mono (HUD / cihaz okumaları).
   NOT: site/brand.css bu dosyanın senkron kopyasıdır — birlikte düzenle.
   ========================================================================== */

:root {
  /* Palette — porselen üstünde enstrüman. Kamera görüntüsü kahraman;
     krom sessiz kalır. */
  --of-bg: #eff1ee;
  --of-ink: #171e1b;
  --of-mut: #5e6963;
  --of-card: #fcfdfc;
  --of-line: #dbe0da;
  --of-stage: #10141a;                 /* enstrüman şasesi */
  --of-hud: rgba(214, 224, 218, 0.62); /* şase üstü HUD yazısı */
  --of-acc: #2563eb;                   /* mağaza config'i ezer */
  --of-acc-deep: color-mix(in srgb, var(--of-acc) 76%, #10141a);
  --of-acc-soft: color-mix(in srgb, var(--of-acc) 9%, #ffffff);
  --of-danger: #b3261e;
  --of-danger-soft: #f7e6e3;

  /* Type — Archivo tek ailede taşır (ağırlık + sıkı tracking = display sesi);
     mono yalnız cihaz-okuması rolünde (HUD, etiketler, gizlilik künyesi). */
  --of-font-display: "Archivo", -apple-system, "Segoe UI", system-ui, sans-serif;
  --of-font-body: "Archivo", -apple-system, "Segoe UI", system-ui, sans-serif;
  --of-font-mono: "IBM Plex Mono", ui-monospace, "Cascadia Code", Consolas, monospace;

  /* Rhythm */
  --of-radius: 18px;
  --of-radius-sm: 10px;
  --of-shadow: 0 1px 2px rgba(23, 30, 27, 0.05), 0 16px 40px -20px rgba(23, 30, 27, 0.22);
  --of-shadow-hover: 0 4px 10px rgba(23, 30, 27, 0.06), 0 24px 48px -20px rgba(23, 30, 27, 0.26);
  --of-container: 1180px;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

/* Guard: birçok bileşen kendi class'ında açık `display` kurar; bu, UA'nın
   [hidden]{display:none}'ını cascade'de geçer. JS'in hidden toggle'ı
   sessizce işlevsiz kalmasın diye bu kural otoriter kalmalı. */
[hidden] { display: none !important; }

body {
  margin: 0;
  background: var(--of-bg);
  color: var(--of-ink);
  font-family: var(--of-font-body);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }

a { color: inherit; }

.of-container {
  width: 100%;
  max-width: var(--of-container);
  margin: 0 auto;
  padding: 0 24px;
}

/* Diyoptri-cetveli motifi — markanın tekrar eden imza detayı: bir lens
   ölçeğinin tik çizgileri. Bölücü / alt çizgi olarak kullanılır. */
.of-tick {
  display: block;
  width: 64px;
  height: 7px;
  margin: 14px 0 0;
  background:
    repeating-linear-gradient(to right,
      currentColor 0 1.5px, transparent 1.5px 8px);
  color: var(--of-acc);
  opacity: 0.9;
}

/* -------------------------------- Header -------------------------------- */
.of-header {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  align-items: center;
  gap: 12px;
  height: 58px;
  padding: 0 clamp(16px, 3vw, 28px);
  background: color-mix(in srgb, var(--of-bg) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--of-line);
  font-family: var(--of-font-display);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.of-logo-img { flex: none; height: 22px; width: auto; }

/* --------------------------------- Buttons -------------------------------- */
.of-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  padding: 13px 24px;
  border-radius: 12px;
  font-family: var(--of-font-body);
  font-size: 14.5px;
  font-weight: 600;
  letter-spacing: 0.005em;
  text-decoration: none;
  border: 1px solid var(--of-acc-deep);
  background: var(--of-acc);
  color: #fff;
  cursor: pointer;
  transition: background-color 0.16s ease, border-color 0.16s ease,
    transform 0.16s ease, box-shadow 0.16s ease;
}

.of-btn:hover {
  background: var(--of-acc-deep);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px -12px color-mix(in srgb, var(--of-acc) 70%, transparent);
}
.of-btn:active { transform: translateY(0); box-shadow: none; }

.of-btn svg { flex: none; }

.of-btn-ghost {
  background: transparent;
  color: var(--of-ink);
  border-color: color-mix(in srgb, var(--of-ink) 22%, transparent);
}

.of-btn-ghost:hover {
  background: var(--of-card);
  border-color: var(--of-ink);
  color: var(--of-ink);
  box-shadow: none;
}

.of-btn-sm { padding: 9px 16px; font-size: 13.5px; }

.of-btn[aria-disabled="true"] {
  background: transparent;
  color: var(--of-mut);
  border-color: var(--of-line);
  cursor: not-allowed;
  pointer-events: none;
  box-shadow: none;
}

/* ---------------------------------- Cards --------------------------------- */
.of-card {
  background: var(--of-card);
  border: 1px solid var(--of-line);
  border-radius: var(--of-radius);
  box-shadow: var(--of-shadow);
}

.of-card-hover {
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.of-card-hover:hover {
  transform: translateY(-3px);
  box-shadow: var(--of-shadow-hover);
  border-color: color-mix(in srgb, var(--of-ink) 20%, var(--of-line));
}

/* ---------------------------------- Badge --------------------------------- */
.of-badge {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 5px 11px;
  border-radius: 6px;
  background: transparent;
  border: 1px solid var(--of-line);
  color: var(--of-mut);
  font-family: var(--of-font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.of-badge::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--of-acc);
}

/* ---------------------------------- Alert --------------------------------- */
.of-alert {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--of-radius-sm);
  border: 1px solid color-mix(in srgb, var(--of-danger) 30%, transparent);
  background: var(--of-danger-soft);
  color: var(--of-danger);
  font-size: 13.5px;
  font-weight: 600;
  line-height: 1.45;
}

/* ----------------------------------- Tabs ---------------------------------- */
.of-tab {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 16px;
  border-radius: 10px;
  border: 1px solid var(--of-line);
  background: var(--of-card);
  color: var(--of-mut);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.15s ease;
}

.of-tab:hover { color: var(--of-ink); border-color: var(--of-mut); }

.of-tab[aria-selected="true"],
.of-tab.active {
  background: var(--of-ink);
  border-color: var(--of-ink);
  color: #fff;
}

/* --------------------------------- Footer --------------------------------- */
.of-footer {
  border-top: 1px solid var(--of-line);
  padding: 22px 24px 26px;
  color: var(--of-mut);
  font-family: var(--of-font-mono);
  font-size: 11.5px;
  letter-spacing: 0.04em;
  text-align: center;
}

.of-footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--of-ink);
  font-family: var(--of-font-display);
  font-size: 18px;
  font-weight: 700;
  text-decoration: none;
  margin-bottom: 10px;
}

/* -------------------------------- Utilities -------------------------------- */
.of-eyebrow {
  display: block;
  font-family: var(--of-font-mono);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--of-mut);
}

.of-mut { color: var(--of-mut); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

:focus-visible {
  outline: 2px solid var(--of-acc);
  outline-offset: 2px;
}