/* ==========================================================================
   BASE — Reset, tipografi, utility class'lar, sayfa iskeleti
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html, body, h1, h2, h3, h4, p, figure, blockquote, dl, dd { margin: 0; }
ul[class], ol[class] { list-style: none; margin: 0; padding: 0; }
img, picture, svg { display: block; max-width: 100%; }
input, button, textarea, select { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; background: none; border: none; }

html {
  scroll-behavior: auto; /* Lenis kontrol edecek */
  color-scheme: dark;
}

body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  line-height: var(--lh-tight);
  font-weight: 600;
  letter-spacing: -0.02em;
}

::selection { background: var(--color-hover); color: #fff; }

/* ---- Scrollbar ---- */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--color-primary); }
::-webkit-scrollbar-thumb { background: var(--color-secondary); border-radius: var(--radius-full); }
::-webkit-scrollbar-thumb:hover { background: var(--color-hover); }

/* ---- Layout ---- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--container-pad);
}

.section {
  position: relative;
  padding-block: var(--space-12);
}

.section--tight { padding-block: var(--space-8); }

main { display: block; }

/* ---- Section başlıkları ---- */
.section-heading {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  margin-bottom: var(--space-10);
  max-width: 640px;
}

.section-heading--center { margin-inline: auto; text-align: center; align-items: center; }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--fs-micro);
  letter-spacing: var(--ls-label);
  text-transform: uppercase;
  color: var(--color-gold-bright);
  font-weight: 600;
}

.eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--gradient-gold);
}

.section-heading h2 { font-size: var(--fs-h2); }
.section-heading p { color: var(--color-text-muted); font-size: var(--fs-body-lg); }

/* ---- Görsel yardımcılar ---- */
.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

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

.divider {
  height: 1px;
  width: 100%;
  background: linear-gradient(90deg, transparent, var(--color-border-strong), transparent);
  border: none;
}

/* ---- Reveal-on-scroll (GSAP tarafından tetiklenir) ---- */
[data-reveal] { opacity: 0; will-change: transform, opacity; }
.no-js [data-reveal] { opacity: 1; }

/* ---- Sayfa yükleme ekranı ---- */
.page-loader {
  position: fixed; inset: 0; z-index: var(--z-loader);
  background: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s var(--ease-premium), visibility 0.6s;
}
.page-loader.is-hidden { opacity: 0; visibility: hidden; pointer-events: none; }
.page-loader__mark {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  letter-spacing: 0.08em;
  color: var(--color-text);
  display: flex; flex-direction: column; align-items: center; gap: var(--space-3);
}
.page-loader__mark span { font-size: 0.7rem; letter-spacing: 0.4em; color: var(--color-hover); }
.page-loader__bar {
  width: 160px; height: 2px; background: var(--color-border); overflow: hidden; border-radius: var(--radius-full);
}
.page-loader__bar::after {
  content: ""; display: block; height: 100%; width: 40%; background: var(--color-hover);
  animation: loaderMove 1.1s ease-in-out infinite;
}
@keyframes loaderMove {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* ---- Responsive helper ---- */
@media (min-width: 1600px) {
  :root { --container-max: 1600px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}