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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100dvh;
  background: var(--bg);
  color: var(--ink);
  font: 400 var(--step-0) / 1.5 var(--font-ui);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

/* Arka plandaki hafif gökyüzü tonu: şu anki evreye (gece, tan, gündüz, akşam) göre değişir. */
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto 0;
  height: min(80vh, 780px);
  pointer-events: none;
  background: radial-gradient(75% 95% at 82% -12%, color-mix(in oklab, var(--ambient) var(--ambient-strength), transparent), transparent 72%);
}

#app { position: relative; }

h1, h2, h3 { text-wrap: balance; }

button,
input,
select { font: inherit; color: inherit; }
button { cursor: pointer; }
button:disabled { cursor: default; }

a { color: inherit; }

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

::selection { background: color-mix(in oklab, var(--accent) 26%, transparent); }

[hidden] { display: none !important; }

.num {
  font-variant-numeric: tabular-nums lining-nums;
  font-feature-settings: "tnum" 1, "lnum" 1;
}

.sr-only {
  position: absolute !important;
  width: 1px;
  height: 1px;
  margin: -1px;
  padding: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

/* Tema değişirken renkler yumuşakça geçsin (yalnızca geçiş anında etkin). */
html.theme-anim,
html.theme-anim * {
  transition: background-color 0.4s var(--ease-out), color 0.4s var(--ease-out), border-color 0.4s var(--ease-out) !important;
}

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

/* Açılışta ya da ölümcül hatada gösterilen düz mesaj */
.boot-msg {
  max-width: 560px;
  margin: 18vh auto 0;
  padding: 0 24px;
}
.boot-msg h1 {
  margin: 0 0 12px;
  font: 400 2.25rem / 1.1 var(--font-display);
  letter-spacing: -0.02em;
}
.boot-msg p { margin: 0; color: var(--ink-2); }