/* ==========================================================================
   Layout — kabuk, başlık, bölüm ritmi, hero, altbilgi
   ========================================================================== */

.shell {
  position: relative;
  z-index: var(--z-base);
  width: 100%;
  max-width: var(--max-page);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

/* --- Site başlığı ------------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  backdrop-filter: blur(14px);
  background: color-mix(in oklab, var(--c-bg) 78%, transparent);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-normal) var(--ease-out),
              background-color var(--dur-normal) var(--ease-out);
}
.site-header[data-stuck="true"] {
  border-bottom-color: var(--c-line);
  background: color-mix(in oklab, var(--c-void) 88%, transparent);
}

.site-header__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 4.25rem;
}

.brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55rem;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}
.brand__mark { color: var(--c-accent); }
.brand__name { color: var(--c-text); }
.brand__ext  { color: var(--c-text-dim); }

/* Mobilde: baslik altinda yatay kaydirilabilir serit.
   860px ustunde: klasik yatay menu, ayni satirda.                          */
.site-nav {
  order: 3;
  display: flex;
  align-items: center;
  gap: var(--space-md);
  width: 100%;
  margin-inline: calc(-1 * var(--gutter));
  padding: 0.55rem var(--gutter) 0.7rem;
  border-top: 1px solid var(--c-line-soft);
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scrollbar-width: none;
}
.site-nav::-webkit-scrollbar { display: none; }

@media (min-width: 860px) {
  .site-nav {
    order: 0;
    width: auto;
    margin-inline: 0;
    padding: 0;
    border-top: 0;
    overflow: visible;
  }
}

.site-nav__link {
  position: relative;
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--c-text-muted);
  padding-block: 0.35rem;
  white-space: nowrap;
  transition: color var(--dur-fast) var(--ease-out);
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: 0;
  height: 1px;
  background: var(--c-accent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-normal) var(--ease-out);
}
.site-nav__link:hover,
.site-nav__link[aria-current="true"] { color: var(--c-text); }
.site-nav__link:hover::after,
.site-nav__link[aria-current="true"]::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: var(--space-sm); }

/* --- Bölümler ----------------------------------------------------------- */

.section {
  padding-block: var(--space-section);
  border-top: 1px solid var(--c-line-soft);
}
.section:first-of-type { border-top: 0; }

.section__head {
  display: flex;
  align-items: baseline;
  gap: var(--space-md);
  margin-bottom: var(--space-xl);
}
.section__index {
  font-family: var(--font-mono);
  font-size: var(--text-micro);
  letter-spacing: var(--track-label);
  color: var(--c-accent);
  padding-top: 0.4rem;
}
.section__title {
  font-size: var(--text-h2);
  letter-spacing: -0.035em;
}
.section__rule {
  flex: 1;
  height: 1px;
  background: linear-gradient(to right, var(--c-line-hi), transparent);
  align-self: center;
}

/* --- Hero --------------------------------------------------------------- */

.hero {
  display: flex;
  flex-direction: column;
  justify-content: center;
  min-height: min(84svh, 800px);
  padding-block: clamp(2.5rem, 7vh, 6rem) var(--space-xl);
}

.hero__eyebrow {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-sm) var(--space-md);
  margin-bottom: var(--space-lg);
}

.hero__name {
  font-size: var(--text-hero);
  line-height: var(--leading-tight);
  letter-spacing: -0.055em;
  font-weight: 500;
  text-wrap: balance;
}
.hero__name span { display: block; }
.hero__name .is-outline {
  color: transparent;
  -webkit-text-stroke: 1px var(--c-line-hi);
  transition: -webkit-text-stroke-color var(--dur-slow) var(--ease-out);
}
.hero:hover .hero__name .is-outline { -webkit-text-stroke-color: var(--c-accent-line); }

.hero__body {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-lg);
}
@media (min-width: 900px) {
  .hero__body {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, 0.85fr);
    align-items: end;
    gap: var(--space-xl);
  }
}

.hero__lead {
  max-width: var(--measure);
  font-size: var(--text-lead);
  color: var(--c-text-muted);
  text-wrap: pretty;
}
.hero__lead strong { color: var(--c-text); font-weight: 500; }

.hero__meta {
  display: grid;
  gap: var(--space-sm);
  padding-left: var(--space-md);
  border-left: 1px solid var(--c-line);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-xl);
}

/* --- İki sütun içerik kalıbı -------------------------------------------- */

.split {
  display: grid;
  gap: var(--space-xl);
}
@media (min-width: 900px) {
  .split { grid-template-columns: minmax(0, 1fr) minmax(0, 1.4fr); gap: var(--space-xl) clamp(2rem, 6vw, 5rem); }

  /* Dar etiket sutunu + genis icerik: hakkimda, deneyim, egitim */
  .split--sidebar { grid-template-columns: minmax(0, 11rem) minmax(0, 1fr); }
}

/* --- Altbilgi ------------------------------------------------------------ */

.site-footer {
  border-top: 1px solid var(--c-line);
  padding-block: var(--space-xl) var(--space-lg);
  margin-top: var(--space-section);
}
.site-footer__inner {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-md);
  font-family: var(--font-mono);
  font-size: var(--text-sm);
  color: var(--c-text-dim);
}