/* ═══════════════════════════════════════════════════════════════
   VUZA — Temel stiller
   Sıfırlama, tipografi ve uygulama iskeleti.
   ═══════════════════════════════════════════════════════════════ */

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

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

body {
  margin: 0;
  min-height: 100dvh;
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--text-primary);
  background: var(--surface-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  font-feature-settings: "cv02", "cv03", "cv04", "cv11";
}

/* Arka plan dokusu: sabit, çok düşük yoğunluklu iki ışıma.
   İçeriğin okunabilirliğini bozmayacak kadar hafif. */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 15% -10%, rgba(124, 77, 255, 0.10), transparent),
    radial-gradient(ellipse 60% 50% at 95% 5%, rgba(236, 72, 153, 0.07), transparent);
}

h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: 650;
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--text-primary);
}

p {
  margin: 0;
}

a {
  color: var(--brand-400);
  text-decoration: none;
  transition: color var(--duration-fast) var(--ease-out);
}

a:hover {
  color: var(--brand-300);
}

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

/* ── Erişilebilirlik ── */

:focus-visible {
  outline: 2px solid var(--brand-500);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

:focus:not(:focus-visible) {
  outline: none;
}

.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;
}

.skip-link {
  position: absolute;
  top: -100px;
  left: var(--space-4);
  z-index: var(--z-toast);
  padding: var(--space-3) var(--space-5);
  background: var(--brand-500);
  color: #fff;
  border-radius: var(--radius-md);
  font-weight: 600;
  transition: top var(--duration-normal) var(--ease-out);
}

.skip-link:focus {
  top: var(--space-4);
}

/* ── Kaydırma çubuğu ── */

* {
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) transparent;
}

*::-webkit-scrollbar {
  width: 10px;
  height: 10px;
}

*::-webkit-scrollbar-track {
  background: transparent;
}

*::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}

*::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
  background-clip: padding-box;
}

/* ── Uygulama iskeleti ── */

.app-shell {
  display: grid;
  grid-template-columns: var(--sidebar-width) 1fr;
  min-height: 100dvh;
}

.app-shell[data-collapsed="true"] {
  grid-template-columns: var(--sidebar-width-collapsed) 1fr;
}

.app-main {
  display: flex;
  flex-direction: column;
  min-width: 0; /* grid çocuklarının taşmasını engeller */
}

.app-content {
  flex: 1;
  width: 100%;
  max-width: var(--content-max-width);
  margin: 0 auto;
  padding: var(--space-8);
}

@media (max-width: 1024px) {
  .app-shell,
  .app-shell[data-collapsed="true"] {
    grid-template-columns: 1fr;
  }

  .app-content {
    padding: var(--space-5) var(--space-4) var(--space-16);
  }
}

/* ── Sayfa başlığı ── */

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-6);
  margin-bottom: var(--space-8);
  flex-wrap: wrap;
}

.page-header__text {
  min-width: 0;
}

.page-header__title {
  font-size: var(--text-2xl);
  margin-bottom: var(--space-2);
}

.page-header__subtitle {
  color: var(--text-secondary);
  font-size: var(--text-base);
  max-width: 62ch;
}

.page-header__actions {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ── Yerleşim yardımcıları ── */

.stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.stack-sm { gap: var(--space-2); }
.stack-lg { gap: var(--space-6); }

.row {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.row-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
}

.grid-auto {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--space-4);
}

.spacer { flex: 1; }

.text-secondary { color: var(--text-secondary); }
.text-tertiary { color: var(--text-tertiary); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.text-mono { font-family: var(--font-mono); }
.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.brand-text {
  background: var(--brand-gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}