/* ============================================================================
   HOLM Digital — temel katman: reset, tipografi, kontroller, kabuk
   Bütün sayfalar (site, giriş, panel, admin) bu dosyayı kullanır.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  /* Yatay taşma kırpması body'de DEĞİL burada olmalı. body'ye `overflow-x`
     verildiğinde body kendi kaydırma bağlamına dönüşüyor ve Safari'nin
     kaydırma çıpası (scroll anchoring) devre dışı kalıyor: görünümün üstünde
     kalan bir öğe boy değiştirdiğinde tarayıcı konumu telafi edemiyor ve
     sayfa zıplıyor. `clip` kaydırma bağlamı yaratmaz; anlamayan tarayıcılar
     bir üstteki `hidden` değerini kullanır. */
  overflow-x: hidden;
  overflow-x: clip;
}
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  /* svh, dvh değil: bkz. site.css → .hero'daki uzun not. */
  min-height: 100svh;
  background: var(--ink-1000);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  font-weight: 600;
  letter-spacing: -0.028em;
  line-height: var(--lh-snug);
  text-wrap: balance;
}
h1 { font-size: var(--fs-h1); }
h2 { font-size: var(--fs-h2); }
h3 { font-size: var(--fs-h3); letter-spacing: -0.018em; }

p { margin: 0; }
ul, ol { margin: 0; padding: 0; list-style: none; }

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--t-fast) var(--e-out);
}

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

::selection { background: var(--accent); color: var(--on-accent); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip-path: inset(50%); white-space: nowrap;
}

.skip-link {
  position: absolute; top: var(--s-3); left: var(--s-3);
  z-index: var(--z-splash);
  transform: translateY(-200%);
  padding: var(--s-3) var(--s-5);
  background: var(--accent); color: var(--on-accent);
  border-radius: var(--r-pill); font-weight: 600;
}
.skip-link:focus { transform: none; }

/* --- Yerleşim yardımcıları ------------------------------------------------ */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section { padding-block: var(--pad-section); position: relative; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.20em;
  text-transform: uppercase;
  color: var(--accent);
}

.lead {
  font-size: var(--fs-lead);
  color: var(--text-2);
  max-width: 62ch;
  text-wrap: pretty;
}

.muted { color: var(--text-2); }
.dim   { color: var(--text-3); }
.mono  { font-family: var(--font-mono); font-variant-numeric: tabular-nums; }

.hr {
  height: 1px; border: 0; margin: 0;
  background: linear-gradient(90deg, transparent, var(--line-2) 18%, var(--line-2) 82%, transparent);
}

/* --- Butonlar (şekil kilidi: hap) ---------------------------------------- */

.btn {
  --btn-bg: transparent;
  --btn-fg: var(--text-1);
  --btn-bd: var(--line-2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--s-2);
  white-space: nowrap;          /* CTA etiketleri asla alt satıra sarmaz */
  padding: 0.78rem 1.5rem;
  min-height: 46px;
  border: 1px solid var(--btn-bd);
  border-radius: var(--r-pill);
  background: var(--btn-bg);
  color: var(--btn-fg);
  font: inherit;
  font-size: var(--fs-sm);
  font-weight: 500;
  cursor: pointer;
  transition:
    transform var(--t-fast) var(--e-out),
    background-color var(--t-base) var(--e-out),
    border-color var(--t-base) var(--e-out),
    color var(--t-base) var(--e-out),
    box-shadow var(--t-base) var(--e-out);
}
.btn:hover { border-color: var(--line-3); background: rgb(255 255 255 / .04); }
.btn:active { transform: scale(.985) translateY(1px); }   /* fiziksel bastırma */
.btn[disabled], .btn[aria-busy="true"] { opacity: .5; pointer-events: none; }

.btn--primary {
  --btn-bg: var(--accent);
  --btn-fg: var(--on-accent);
  --btn-bd: transparent;
  font-weight: 600;
}
.btn--primary:hover { background: var(--accent-hi); border-color: transparent; box-shadow: var(--glow); }

.btn--ghost { --btn-bd: transparent; color: var(--text-2); }
.btn--ghost:hover { color: var(--text-1); }

.btn--sm { min-height: 36px; padding: 0.42rem 0.95rem; font-size: var(--fs-xs); }
.btn--danger { --btn-fg: #FF8A7A; --btn-bd: rgb(255 138 122 / .32); }
.btn--danger:hover { background: rgb(255 138 122 / .1); border-color: rgb(255 138 122 / .5); }

.btn i { font-size: 1.15em; }

/* --- Çip / rozet ---------------------------------------------------------- */

.chip {
  display: inline-flex; align-items: center; gap: var(--s-2);
  padding: 0.3rem 0.7rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r-pill);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-2);
}
.chip--accent { border-color: var(--accent-line); color: var(--accent); background: var(--accent-dim); }

.badge {
  display: inline-flex; align-items: center;
  padding: 0.22rem 0.55rem;
  border-radius: var(--r-tiny);
  background: rgb(255 255 255 / .06);
  font-family: var(--font-mono);
  font-size: var(--fs-micro);
  letter-spacing: .04em;
  color: var(--text-2);
}
.badge--live    { background: var(--accent-dim); color: var(--accent); }
.badge--ok      { background: rgb(140 226 150 / .12); color: #8CE296; }
.badge--warn    { background: rgb(255 200 100 / .12); color: #FFC864; }
.badge--off     { background: rgb(255 138 122 / .12); color: #FF8A7A; }

/* --- Kart / panel (şekil kilidi: 16px) ------------------------------------ */

.card {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--r-box);
  background: var(--ink-800);
  overflow: hidden;
}

/* İmleç takipli kenar aydınlatması. --mx/--my JS tarafından güncellenir. */
.card--spot::before {
  content: "";
  position: absolute; inset: -1px;
  border-radius: inherit;
  padding: 1px;
  background: radial-gradient(
    260px circle at var(--mx, 50%) var(--my, 50%),
    var(--accent-line), transparent 62%);
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  opacity: 0;
  transition: opacity var(--t-base) var(--e-out);
  pointer-events: none;
}
.card--spot:hover::before, .card--spot:focus-within::before { opacity: 1; }

/* --- Form kontrolleri ----------------------------------------------------- */

/* [hidden] her zaman kazanmalı; aşağıdaki .field gibi display kuralları onu ezerdi. */
[hidden] { display: none !important; }

.field { display: grid; gap: var(--s-2); }

.field > label {
  font-size: var(--fs-xs);
  font-weight: 500;
  color: var(--text-2);          /* #98A0B2, ink-800 üzerinde 6.1:1 */
  letter-spacing: .01em;
}

.input, .textarea, .select {
  width: 100%;
  padding: 0.78rem 1rem;
  border: 1px solid var(--line-2);
  border-radius: var(--r-box);
  background: var(--ink-900);
  color: var(--text-1);
  font: inherit;
  font-size: var(--fs-sm);
  transition: border-color var(--t-base) var(--e-out), background-color var(--t-base) var(--e-out);
}
.textarea { min-height: 132px; resize: vertical; line-height: 1.55; }
.select { appearance: none; cursor: pointer; padding-right: 2.5rem;
  background-image: linear-gradient(45deg, transparent 50%, var(--text-2) 50%),
                    linear-gradient(135deg, var(--text-2) 50%, transparent 50%);
  background-position: right 1.15rem center, right 0.9rem center;
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}
.input::placeholder, .textarea::placeholder { color: var(--text-3); }  /* 4.6:1 */
.input:hover, .textarea:hover, .select:hover { border-color: var(--line-3); }
.input:focus, .textarea:focus, .select:focus {
  outline: none;
  border-color: var(--accent);
  background: var(--ink-800);
  box-shadow: 0 0 0 3px var(--accent-dim);
}
.input[aria-invalid="true"], .textarea[aria-invalid="true"] { border-color: #FF8A7A; }

.field-help { font-size: var(--fs-xs); color: var(--text-3); }
.field-error { font-size: var(--fs-xs); color: #FF8A7A; min-height: 1.2em; }

.checkbox { display: flex; align-items: flex-start; gap: var(--s-3); cursor: pointer; }
.checkbox input { accent-color: var(--accent); width: 18px; height: 18px; margin-top: 2px; flex: none; }

/* --- Durum blokları (boş / yükleniyor / hata) ----------------------------- */

.state {
  display: grid; place-items: center; gap: var(--s-3);
  padding: var(--s-8) var(--s-5);
  text-align: center;
  color: var(--text-2);
}
.state i { font-size: 2rem; color: var(--text-3); }
.state h3 { color: var(--text-1); }

.skeleton {
  border-radius: var(--r-box);
  background:
    linear-gradient(90deg, transparent, rgb(255 255 255 / .06), transparent) 0 0 / 220% 100%,
    var(--ink-800);
  animation: shimmer 1.5s var(--e-sine) infinite;
}
@keyframes shimmer { to { background-position: -220% 0; } }
@media (prefers-reduced-motion: reduce) { .skeleton { animation: none; } }

/* --- Bildirim (toast) ----------------------------------------------------- */

.toaster {
  position: fixed; z-index: var(--z-modal);
  bottom: var(--s-5); right: var(--s-5);
  display: grid; gap: var(--s-2);
  max-width: min(380px, calc(100vw - 2 * var(--s-5)));
}
.toast {
  display: flex; align-items: flex-start; gap: var(--s-3);
  padding: var(--s-4) var(--s-5);
  border: 1px solid var(--line-2);
  border-radius: var(--r-box);
  background: var(--ink-700);
  box-shadow: var(--shadow-3);
  font-size: var(--fs-sm);
  animation: toast-in var(--t-base) var(--e-out) both;
}
.toast--ok  { border-color: rgb(140 226 150 / .35); }
.toast--err { border-color: rgb(255 138 122 / .35); }
.toast i { font-size: 1.2rem; flex: none; margin-top: 1px; }
.toast--ok i  { color: #8CE296; }
.toast--err i { color: #FF8A7A; }
@keyframes toast-in { from { opacity: 0; transform: translateY(14px) scale(.97); } }

/* --- Modal ---------------------------------------------------------------- */

dialog.modal {
  width: min(760px, calc(100vw - 2 * var(--s-5)));
  max-height: min(86svh, 900px);
  padding: 0;
  border: 1px solid var(--line-2);
  border-radius: var(--r-box);
  background: var(--ink-800);
  color: var(--text-1);
  box-shadow: var(--shadow-3);
  overflow: auto;
}
dialog.modal::backdrop {
  background: rgb(4 5 8 / .78);
  backdrop-filter: blur(8px);
}
dialog.modal[open] { animation: modal-in var(--t-base) var(--e-out); }
@keyframes modal-in { from { opacity: 0; transform: translateY(18px) scale(.98); } }

.modal__head {
  display: flex; align-items: flex-start; justify-content: space-between; gap: var(--s-5);
  padding: var(--s-6) var(--s-6) var(--s-4);
}
.modal__body { padding: 0 var(--s-6) var(--s-6); display: grid; gap: var(--s-5); }
.modal__close {
  flex: none; width: 34px; height: 34px;
  display: grid; place-items: center;
  border: 1px solid var(--line-2); border-radius: var(--r-pill);
  background: none; color: var(--text-2); cursor: pointer;
  transition: color var(--t-fast) var(--e-out), border-color var(--t-fast) var(--e-out);
}
.modal__close:hover { color: var(--text-1); border-color: var(--line-3); }

/* --- Kum dokusu (grain) --------------------------------------------------
   Sabit konumlu, pointer-events yok. Kaydırılan kapsayıcılara asla uygulanmaz;
   aksi halde sürekli GPU repaint mobil FPS'i düşürür.                        */

.grain {
  position: fixed; inset: 0;
  z-index: var(--z-grain);
  pointer-events: none;
  opacity: .042;
  mix-blend-mode: overlay;
  background-image: var(--grain-src);
  background-size: 180px 180px;
}

/* --- Kaydırma ile beliriş -------------------------------------------------
   IntersectionObserver `.is-in` sınıfını ekler (bkz. js/reveal.js).          */

[data-reveal] {
  opacity: 0;
  transform: translateY(26px);
  transition:
    opacity var(--t-slow) var(--e-out),
    transform var(--t-slow) var(--e-out);
  transition-delay: calc(var(--i, 0) * var(--stagger));
}
[data-reveal].is-in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  [data-reveal] { opacity: 1; transform: none; }
}

/* --- Kaydırma çubuğu ------------------------------------------------------ */

::-webkit-scrollbar { width: 11px; height: 11px; }
::-webkit-scrollbar-track { background: var(--ink-900); }
::-webkit-scrollbar-thumb { background: var(--ink-600); border-radius: var(--r-pill); border: 3px solid var(--ink-900); }
::-webkit-scrollbar-thumb:hover { background: var(--line-3); }