/* EduJou tanitim sitesi - tek dosya stil.
   Tasarim dili EduJou panelinden (Ekosistem/EduVid/panel: src/index.css ve components/ui): Apple tarzi
   sistem fontu, gri zemin, ince notr cizgiler, 12px kartlar, golgesiz hap butonlar, buyuk harfsiz teal
   etiketler. Degerler oradan alindi; panel degisirse burasi da degismeli. */

:root {
  /* Marka (panel ile ayni) */
  --brand-ink: #036064;
  --brand-ink-strong: #024448;
  --brand-rose: #c2175b;
  --brand-sun: #ffab00;
  --brand-paper: #ffffff;
  --brand-mist: #eef3f3;
  --grad-accent: linear-gradient(90deg, #036064 0%, #0b7f84 45%, #c2175b 100%);

  --ink-900: #1b1f24;
  --ink-700: #374151;
  --ink-600: #4b5563;
  --ink-500: #6b7280;
  --ink-400: #9ca3af;
  /* Ikincil metin. Panelin ink-500'u gri zeminde 4.4:1 kaliyor (AA'nin altinda); biraz koyusu. */
  --muted: #5c6370;

  --teal-a06: rgba(3, 96, 100, 0.06);
  --teal-a08: rgba(3, 96, 100, 0.08);

  --line: rgba(0, 0, 0, 0.07);
  --line-strong: rgba(0, 0, 0, 0.14);
  --canvas: #f3f5f5;

  --card-radius: 12px;
  --card-border: 0.5px solid rgba(0, 0, 0, 0.06);
  --card-shadow: 0 1px 2px rgba(0, 0, 0, 0.04), 0 2px 8px rgba(0, 0, 0, 0.03);
  --card-shadow-hover: 0 2px 4px rgba(0, 0, 0, 0.05), 0 8px 24px rgba(0, 0, 0, 0.07);
  --shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-float: 0 0 0 0.5px rgba(0, 0, 0, 0.04), 0 12px 40px rgba(0, 0, 0, 0.08);
  --radius-2xl: 18px;

  /* Panelin font yigini: Apple cihazlarda SF Pro, digerlerinde Inter (yukluyse) ya da sistemin fontu */
  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --container: 1160px;
  --header-h: 56px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--header-h) + 16px); -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  background: var(--canvas);
  color: var(--ink-900);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  letter-spacing: -0.003em;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img, svg { display: block; max-width: 100%; }
a { color: var(--brand-ink); text-decoration-thickness: 1px; text-underline-offset: 3px; }
a:hover { color: var(--brand-ink-strong); }
p { margin: 0 0 1em; }
h1, h2, h3, h4 { font-family: var(--font-display); font-weight: 700; line-height: 1.1; letter-spacing: -0.02em; margin: 0 0 0.5em; color: var(--ink-900); }
h1 { font-size: clamp(2.25rem, 4.8vw, 3.5rem); line-height: 1.06; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.75rem, 3.2vw, 2.5rem); letter-spacing: -0.03em; }
h3 { font-size: 1.0625rem; font-weight: 600; line-height: 1.3; letter-spacing: -0.015em; }
em { font-style: normal; }
/* Basliklarda marka vurgusu: panelin .edu-grad-text'i (teal -> pembe) */
h1 em, h2 em { background: var(--grad-accent); -webkit-background-clip: text; background-clip: text; color: transparent; }
::selection { background: rgba(3, 96, 100, 0.18); }

.icon { width: 1.25em; height: 1.25em; flex: none; }

/* Odak halkasi panelde oldugu gibi teal; koyu zeminde beyaz */
:focus-visible { outline: 2px solid var(--brand-ink); outline-offset: 2px; }
.cta-band :focus-visible, .story-art :focus-visible { outline-color: #fff; }

.skip-link {
  position: absolute; left: 16px; top: -60px; z-index: 100;
  background: var(--brand-ink); color: #fff; padding: 8px 16px; border-radius: 999px; font-weight: 600; font-size: 0.875rem;
}
.skip-link:focus { top: 10px; color: #fff; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 24px; }
@media (max-width: 640px) { .container { padding: 0 16px; } }
.section { padding: 88px 0; }
.section-tight { padding: 64px 0; }
@media (max-width: 720px) { .section { padding: 56px 0; } .section-tight { padding: 44px 0; } }
/* Beyaz bant: gri zeminin arasinda; icindeki kartlar griye doner (asagida .band ...) */
.band { background: var(--brand-paper); border-top: 0.5px solid var(--line-strong); border-bottom: 0.5px solid var(--line-strong); }
.pt-0 { padding-top: 0; }

/* Kucuk bolum etiketi: panelin .edu-eyebrow'u - buyuk harf ve harf araligi YOK */
.eyebrow { display: block; font-size: 0.875rem; font-weight: 600; color: var(--brand-ink); margin-bottom: 10px; }
.lead { font-size: clamp(1.0625rem, 1.5vw, 1.1875rem); line-height: 1.55; color: var(--ink-600); max-width: 620px; }
.section-head { max-width: 680px; margin-bottom: 40px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head.center .lead { margin-left: auto; margin-right: auto; }

/* Logodaki uc nokta */
.tri { display: inline-flex; gap: 3px; }
.tri i { width: 6px; height: 6px; border-radius: 999px; background: var(--brand-ink); }
.tri i:nth-child(2) { background: var(--brand-rose); }
.tri i:nth-child(3) { background: var(--brand-sun); }

/* ------------------------------------------------------------------ butonlar (panelin Button'i) */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  min-height: 44px; padding: 0 22px; border-radius: 999px; border: 1px solid transparent;
  font: 600 0.9375rem/1.25 var(--font-sans); letter-spacing: -0.005em; white-space: nowrap;
  text-decoration: none; cursor: pointer;
  transition: background-color .16s ease, color .16s ease, border-color .16s ease;
}
.btn .icon { width: 16px; height: 16px; }
.btn-primary { background: var(--brand-ink); color: #fff; }
.btn-primary:hover { background: var(--brand-ink-strong); color: #fff; }
.btn-secondary { background: #fff; color: var(--ink-900); border: 0.5px solid var(--line-strong); box-shadow: var(--shadow-xs); }
.btn-secondary:hover { background: var(--brand-mist); color: var(--ink-900); }
.btn-light { background: #fff; color: var(--brand-ink-strong); }
.btn-light:hover { background: var(--brand-mist); color: var(--brand-ink-strong); }
.btn-ghost-light { background: rgba(255, 255, 255, 0.14); color: #fff; }
.btn-ghost-light:hover { background: rgba(255, 255, 255, 0.22); color: #fff; }
.btn-sm { min-height: 32px; padding: 0 14px; font-size: 0.8125rem; }
.actions { display: flex; flex-wrap: wrap; gap: 10px; }

/* ------------------------------------------------------------------ rozetler (panelin Badge'i: 6px kose) */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 2px 8px; border-radius: 6px; white-space: nowrap;
  font-size: 0.75rem; font-weight: 500; line-height: 1.5;
}
/* Yesil yazi panelde #1f8a5b; bu kadar kucuk yazida AA icin biraz koyulastirildi */
.badge-live { background: rgba(31, 138, 91, 0.14); color: #17734b; }
.badge-lms { background: rgba(3, 96, 100, 0.10); color: var(--brand-ink); }
.badge-soon { background: rgba(255, 171, 0, 0.18); color: #8a5a00; }

/* ------------------------------------------------------------------ ust bar (panelin Topbar'i) */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.72);
  -webkit-backdrop-filter: saturate(180%) blur(20px); backdrop-filter: saturate(180%) blur(20px);
  border-bottom: 0.5px solid var(--line-strong);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; height: var(--header-h); }

.brand-lockup { display: flex; align-items: center; gap: 12px; min-width: 0; }
.brand { display: inline-flex; flex-direction: column; gap: 3px; line-height: 1; text-decoration: none; color: var(--ink-900); flex-shrink: 0; }
.brand:hover { color: var(--ink-900); }
.brand-word { font-family: var(--font-display); font-weight: 500; font-size: 14px; letter-spacing: 0.22em; margin-right: -0.22em; white-space: nowrap; }
.brand-tag { display: inline-flex; align-items: center; gap: 12px; font-size: 13px; font-weight: 500; color: var(--ink-700); white-space: nowrap; }
.brand-tag::before { content: ""; width: 1px; height: 22px; background: var(--line-strong); }
@media (max-width: 640px) { .brand-tag { display: none; } }

.nav { display: flex; align-items: center; gap: 2px; }
.nav a:not(.btn) {
  padding: 6px 12px; border-radius: 999px; text-decoration: none;
  color: var(--ink-700); font-weight: 500; font-size: 0.875rem;
  transition: background-color .12s ease, color .12s ease;
}
.nav a:not(.btn):hover { background: rgba(0, 0, 0, 0.04); color: var(--ink-900); }
/* Etkin sayfa: panelin kenar cubugundaki etkin oge gibi acik teal dolgu + teal yazi */
.nav a[aria-current="page"] { background: var(--teal-a08); color: var(--brand-ink-strong); font-weight: 600; }
.nav .btn { margin-left: 8px; }

.nav-toggle {
  display: none; width: 36px; height: 36px; border-radius: 8px; border: 1px solid var(--line);
  background: #fff; color: var(--ink-700); cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle .icon { width: 18px; height: 18px; }
.nav-toggle .icon-close { display: none; }
.nav-open .nav-toggle .icon-open { display: none; }
.nav-open .nav-toggle .icon-close { display: block; }

@media (max-width: 960px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: var(--header-h) 0 auto 0; flex-direction: column; align-items: stretch; gap: 2px;
    background: rgba(255, 255, 255, 0.97); padding: 10px 16px 18px;
    border-bottom: 0.5px solid var(--line-strong); box-shadow: 0 12px 24px rgba(0, 0, 0, 0.06);
    transform: translateY(-6px); opacity: 0; visibility: hidden; transition: opacity .16s ease, transform .16s ease, visibility .16s;
    max-height: calc(100vh - var(--header-h)); overflow-y: auto;
  }
  .nav a:not(.btn) { padding: 12px; font-size: 1rem; border-radius: 8px; }
  .nav .btn { margin: 8px 0 0; min-height: 44px; font-size: 0.9375rem; }
  .nav-open .nav { opacity: 1; transform: none; visibility: visible; }
}

/* ------------------------------------------------------------------ hero */
/* Alt bosluk az: hemen ardindan gelen Uygulamalar bolumu de gri zeminde, kendi ust boslugu yetiyor */
.hero { padding: 64px 0 24px; }
.hero-grid { display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 56px; align-items: center; }
.hero .lead { margin-bottom: 28px; }
.hero-points { display: flex; flex-wrap: wrap; gap: 8px 20px; margin: 24px 0 0; padding: 0; list-style: none; color: var(--muted); font-size: 0.875rem; }
.hero-points li { display: inline-flex; align-items: center; gap: 6px; }
.hero-points .icon { color: var(--brand-ink); width: 16px; height: 16px; }
@media (max-width: 960px) { .hero { padding: 36px 0 16px; } .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

/* hero: uygulama vitrini (panel penceresi gibi beyaz kart) */
.constellation { background: var(--brand-paper); border-radius: var(--radius-2xl); padding: 16px; border: var(--card-border); box-shadow: var(--shadow-float); }
.constellation-head { display: flex; align-items: center; justify-content: space-between; padding: 2px 4px 14px; font-size: 0.8125rem; font-weight: 500; color: var(--ink-500); }
.constellation-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 10px; }
.tile {
  display: flex; flex-direction: column; gap: 10px; padding: 14px; border-radius: var(--card-radius);
  background: var(--canvas); text-decoration: none; color: var(--ink-900);
  transition: background-color .16s ease, box-shadow .2s ease;
}
.tile:hover { background: #fff; box-shadow: var(--card-shadow-hover); color: var(--ink-900); }
.tile-wide { grid-column: span 2; flex-direction: row; align-items: center; gap: 12px; }
.tile-name { font-weight: 600; font-size: 0.9375rem; line-height: 1.25; letter-spacing: -0.01em; }
.tile-desc { font-size: 0.8125rem; color: var(--muted); line-height: 1.4; }
.tile .badge { align-self: flex-start; }

/* Uygulama ikonu: panelin IconBadge'i. Urun renkleri: LMS koyu teal, Video teal, Cards pembe, EduExam sari. */
.app-icon {
  width: 40px; height: 40px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; flex: none;
  background: var(--teal-a08); color: var(--brand-ink);
}
.app-icon .icon { width: 20px; height: 20px; }
.app-icon.lms { background: var(--brand-ink); color: #fff; }
.app-icon.video { background: var(--teal-a08); color: var(--brand-ink); }
.app-icon.cards { background: rgba(194, 23, 91, 0.10); color: var(--brand-rose); }
.app-icon.exam { background: rgba(255, 171, 0, 0.18); color: #8a5a00; }
/* Hikaye yeni urun: marka gradyani (basliklardaki vurguyla ayni) */
.app-icon.story { background: var(--grad-accent); color: #fff; }

/* ------------------------------------------------------------------ uygulama kartlari (panelin SurfaceCard'i) */
.apps-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.app-card {
  position: relative; display: flex; flex-direction: column; gap: 12px; padding: 22px;
  background: var(--brand-paper); border: var(--card-border); border-radius: var(--card-radius); box-shadow: var(--card-shadow);
  transition: box-shadow .2s ease;
}
/* Panelde oldugu gibi kart yerinden oynamaz, golgesi derinlesir */
.app-card:hover { box-shadow: var(--card-shadow-hover); }
.app-card .top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.app-card h3 { margin: 4px 0 6px; font-size: 1.125rem; }
.app-card p { color: var(--muted); margin: 0; font-size: 0.9375rem; line-height: 1.55; }
.app-card .more { margin-top: auto; padding-top: 4px; display: inline-flex; align-items: center; gap: 6px; font-weight: 600; font-size: 0.9375rem; text-decoration: none; }
.app-card .more .icon { width: 16px; height: 16px; transition: transform .16s ease; }
.app-card .more:hover .icon { transform: translateX(2px); }
.app-card.featured { grid-column: span 2; }
.app-card.featured h3 { font-size: 1.375rem; }
.chips { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 2px; }
.chip { display: inline-flex; align-items: center; gap: 6px; padding: 4px 10px; border-radius: 6px; background: var(--canvas); color: var(--ink-700); font-size: 0.8125rem; font-weight: 500; }
.chip .icon { width: 14px; height: 14px; color: var(--brand-ink); }
@media (max-width: 960px) { .apps-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 640px) { .apps-grid { grid-template-columns: 1fr; } .app-card.featured { grid-column: auto; } }

/* ------------------------------------------------------------------ LMS bolumu */
.split { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .split { grid-template-columns: 1fr; gap: 32px; } }
.feature-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px; }
@media (max-width: 560px) { .feature-grid { grid-template-columns: 1fr; } }
.feature-grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
@media (max-width: 960px) { .feature-grid.cols-3 { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .feature-grid.cols-3 { grid-template-columns: 1fr; } }
.feature {
  display: flex; gap: 12px; padding: 16px; border-radius: var(--card-radius);
  background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow);
}
.feature .fi { width: 32px; height: 32px; border-radius: 8px; background: var(--teal-a08); color: var(--brand-ink); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.feature .fi .icon { width: 16px; height: 16px; }
.feature h4 { font: 600 0.9375rem/1.3 var(--font-sans); letter-spacing: -0.01em; margin: 0 0 3px; }
.feature p { margin: 0; font-size: 0.875rem; color: var(--muted); line-height: 1.5; }

/* Beyaz bantta kartlar gri karo olur (Apple'in gruplu gorunumu) */
.band .feature,
.band .module,
.band .audience { background: var(--canvas); border: 0; box-shadow: none; }
.band .values { background: var(--canvas); border: 0; box-shadow: none; }

/* ------------------------------------------------------------------ hikaye */
.story-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center; }
@media (max-width: 960px) { .story-grid { grid-template-columns: 1fr; gap: 36px; } }
.story-points { list-style: none; margin: 28px 0; padding: 0; display: grid; gap: 16px; }
.story-points li { display: flex; gap: 12px; }
.story-points .si { width: 36px; height: 36px; border-radius: 10px; background: var(--teal-a08); color: var(--brand-ink); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.story-points .si .icon { width: 18px; height: 18px; }
.story-points h3 { font-size: 1rem; margin: 0 0 2px; }
.story-points p { margin: 0; color: var(--muted); font-size: 0.9375rem; }
.story-note { display: flex; gap: 10px; align-items: flex-start; padding: 12px 14px; border-radius: 10px; background: rgba(255, 171, 0, 0.12); color: var(--ink-700); font-size: 0.9375rem; margin-bottom: 24px; }
.story-note .icon { color: #8a5a00; margin-top: 3px; width: 16px; height: 16px; }
/* Cizim gece sahnesi: duz koyu teal bir panelin icinde (gradyan yok) */
.story-art { background: var(--brand-ink-strong); border-radius: var(--radius-2xl); padding: 28px 24px 20px; }
.story-art svg { width: 100%; height: auto; }

/* ------------------------------------------------------------------ kimler icin */
.audience-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px; }
@media (max-width: 1040px) { .audience-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 560px) { .audience-grid { grid-template-columns: 1fr; } }
.audience { padding: 20px; border-radius: var(--card-radius); background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow); }
.audience .ai { width: 36px; height: 36px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.audience .ai .icon { width: 18px; height: 18px; }
.audience:nth-child(1) .ai { background: var(--brand-ink); color: #fff; }
.audience:nth-child(2) .ai { background: var(--teal-a08); color: var(--brand-ink); }
.audience:nth-child(3) .ai { background: rgba(255, 171, 0, 0.18); color: #8a5a00; }
.audience:nth-child(4) .ai { background: rgba(194, 23, 91, 0.10); color: var(--brand-rose); }
.audience h3 { font-size: 1.0625rem; margin-bottom: 6px; }
.audience p { color: var(--muted); margin: 0; font-size: 0.9375rem; }

/* ------------------------------------------------------------------ degerler seridi */
.values {
  display: grid; grid-template-columns: repeat(4, 1fr); margin-top: 32px; overflow: hidden;
  border-radius: var(--card-radius); background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow);
}
.section-tight > .container > .values { margin-top: 0; }
.value { padding: 22px 20px; border-right: 0.5px solid var(--line-strong); }
.value:last-child { border-right: 0; }
.value .icon { width: 20px; height: 20px; color: var(--brand-ink); margin-bottom: 12px; }
.value h3 { font-size: 0.9375rem; margin-bottom: 4px; }
.value p { margin: 0; color: var(--muted); font-size: 0.875rem; }
@media (max-width: 960px) {
  .values { grid-template-columns: repeat(2, 1fr); }
  .value:nth-child(2) { border-right: 0; }
  .value:nth-child(-n+2) { border-bottom: 0.5px solid var(--line-strong); }
}
@media (max-width: 560px) {
  .values { grid-template-columns: 1fr; }
  .value { border-right: 0; border-bottom: 0.5px solid var(--line-strong); }
  .value:last-child { border-bottom: 0; }
}

/* ------------------------------------------------------------------ adimlar */
.steps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; counter-reset: step; list-style: none; margin: 0; padding: 0; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.steps li { padding: 22px 20px; border-radius: var(--card-radius); background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow); }
.steps li::before {
  counter-increment: step; content: counter(step);
  display: inline-flex; align-items: center; justify-content: center; width: 28px; height: 28px; border-radius: 999px;
  background: var(--brand-ink); color: #fff; font: 600 0.875rem/1 var(--font-sans); margin-bottom: 12px;
}
.steps h3 { font-size: 1rem; margin-bottom: 4px; }
.steps p { margin: 0; color: var(--muted); font-size: 0.9375rem; }

/* ------------------------------------------------------------------ CTA ve iletisim */
.cta-band {
  border-radius: var(--radius-2xl); padding: 40px 44px; color: #fff; background: var(--brand-ink);
  display: grid; grid-template-columns: 1.4fr 1fr; gap: 28px; align-items: center;
}
.cta-band h2 { color: #fff; margin-bottom: 8px; }
.cta-band p { color: rgba(255, 255, 255, 0.84); margin: 0; }
.cta-band .actions { justify-content: flex-end; }
@media (max-width: 860px) { .cta-band { grid-template-columns: 1fr; padding: 28px 22px; } .cta-band .actions { justify-content: flex-start; } }

.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 40px; align-items: start; }
@media (max-width: 860px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.contact-item {
  display: flex; gap: 12px; align-items: center; padding: 14px 16px; border-radius: var(--card-radius);
  background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow);
}
.contact-item .ci { width: 36px; height: 36px; border-radius: 10px; background: var(--teal-a08); color: var(--brand-ink); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.contact-item .ci .icon { width: 18px; height: 18px; }
.contact-item small { display: block; color: var(--ink-500); font-size: 0.75rem; }
.contact-item strong, .contact-item a { font-weight: 600; color: var(--ink-900); text-decoration: none; font-size: 0.9375rem; }
.contact-item a:hover { color: var(--brand-ink); text-decoration: underline; }
.social { display: flex; gap: 8px; }
.social a {
  width: 40px; height: 40px; border-radius: 10px; display: inline-flex; align-items: center; justify-content: center;
  background: #fff; border: 0.5px solid var(--line-strong); box-shadow: var(--shadow-xs); color: var(--ink-700);
  transition: background-color .16s ease, color .16s ease;
}
.social a:hover { background: var(--brand-mist); color: var(--brand-ink); }
.social .icon { width: 18px; height: 18px; }

/* ------------------------------------------------------------------ alt bilgi */
.site-footer { border-top: 0.5px solid var(--line-strong); padding: 44px 0 28px; background: var(--brand-paper); font-size: 0.875rem; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 32px; }
@media (max-width: 760px) { .footer-grid { grid-template-columns: 1fr; gap: 24px; } }
/* Panelin menu grubu basliklari gibi: kucuk, soluk, buyuk harfsiz */
.footer-grid h4 { font: 600 0.75rem/1 var(--font-sans); letter-spacing: 0; color: var(--ink-500); margin-bottom: 12px; }
.footer-grid ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.footer-grid a { color: var(--ink-700); text-decoration: none; }
.footer-grid a:hover { color: var(--brand-ink); }
.footer-note { color: var(--muted); margin-top: 12px; max-width: 340px; }
.footer-bottom { display: flex; flex-wrap: wrap; justify-content: space-between; gap: 12px; margin-top: 32px; padding-top: 18px; border-top: 0.5px solid var(--line-strong); color: var(--ink-500); font-size: 0.8125rem; }

/* ------------------------------------------------------------------ alt sayfalar (LMS, gizlilik) */
.page-hero { padding: 56px 0 64px; }
.breadcrumb { font-size: 0.8125rem; color: var(--ink-500); margin-bottom: 14px; }
.breadcrumb a { color: var(--ink-500); }
.breadcrumb a:hover { color: var(--brand-ink); }

.modules { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
@media (max-width: 960px) { .modules { grid-template-columns: 1fr; } }
.module { padding: 22px; border-radius: var(--card-radius); background: var(--brand-paper); border: var(--card-border); box-shadow: var(--card-shadow); }
.module .top { display: flex; align-items: center; gap: 12px; margin-bottom: 12px; }
.module h3 { margin: 0; font-size: 1.125rem; }
.module p { color: var(--muted); font-size: 0.9375rem; }
.ticks { list-style: none; margin: 0; padding: 0; display: grid; gap: 8px; }
.ticks li { display: flex; gap: 10px; font-size: 0.9375rem; color: var(--ink-700); }
.ticks .icon { width: 16px; height: 16px; color: var(--brand-ink); margin-top: 4px; }

/* Panel onizlemesi: gercek panelin kabugu (ust bar, kenar cubugu, ozet kartlari) kucultulmus hali */
.panel-mock { border-radius: var(--radius-2xl); overflow: hidden; background: var(--canvas); border: var(--card-border); box-shadow: var(--shadow-float); }
.pm-top { display: flex; align-items: center; gap: 10px; height: 44px; padding: 0 14px; background: rgba(255, 255, 255, 0.85); border-bottom: 0.5px solid var(--line-strong); }
.pm-brand { display: inline-flex; flex-direction: column; gap: 2px; line-height: 1; }
.pm-brand .tri i { width: 5px; height: 5px; }
.pm-brand b { font: 500 11px/1 var(--font-display); letter-spacing: 0.22em; color: var(--ink-900); }
.pm-label { display: inline-flex; align-items: center; gap: 10px; font-size: 11.5px; font-weight: 500; color: var(--ink-700); }
.pm-label::before { content: ""; width: 1px; height: 16px; background: var(--line-strong); }
.pm-body { display: grid; grid-template-columns: 150px 1fr; min-height: 300px; }
.pm-side { background: rgba(236, 241, 241, 0.92); border-right: 0.5px solid var(--line-strong); padding: 10px 8px; display: flex; flex-direction: column; gap: 1px; }
.pm-side span { display: flex; align-items: center; gap: 8px; padding: 5px 8px; border-radius: 7px; font-size: 11.5px; font-weight: 500; color: var(--ink-700); }
.pm-side span .icon { width: 13px; height: 13px; color: var(--ink-500); }
.pm-side span.on { background: var(--teal-a08); color: var(--brand-ink-strong); font-weight: 600; }
.pm-side span.on .icon { color: var(--brand-ink); }
.pm-side small { margin: 10px 0 2px; padding-left: 8px; font-size: 10px; font-weight: 500; color: var(--ink-400); }
.pm-main { padding: 14px; display: grid; gap: 10px; align-content: start; }
.pm-head small { display: block; font-size: 10px; font-weight: 500; color: var(--ink-500); }
.pm-head b { font-size: 15px; font-weight: 700; letter-spacing: -0.025em; color: var(--ink-900); }
.pm-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 8px; }
.pm-stat { display: flex; justify-content: space-between; gap: 6px; padding: 8px 10px; background: #fff; border: var(--card-border); border-radius: 10px; box-shadow: var(--card-shadow); }
.pm-stat small { display: block; font-size: 10px; font-weight: 500; color: var(--ink-500); }
.pm-stat b { display: block; font-size: 15px; font-weight: 600; letter-spacing: -0.02em; color: var(--ink-900); margin-top: 1px; }
.pm-ico { width: 20px; height: 20px; border-radius: 6px; background: var(--teal-a06); color: var(--brand-ink); display: inline-flex; align-items: center; justify-content: center; flex: none; }
.pm-ico .icon { width: 11px; height: 11px; }
.pm-card { background: #fff; border: var(--card-border); border-radius: 10px; box-shadow: var(--card-shadow); padding: 2px 10px; }
.pm-row { display: flex; align-items: center; gap: 10px; padding: 8px 0; font-size: 11px; color: var(--ink-700); border-bottom: 0.5px solid var(--line); }
.pm-row:last-child { border-bottom: 0; }
.pm-row > span:first-child { width: 96px; flex: none; }
.pm-bar { flex: 1; height: 6px; border-radius: 999px; background: var(--teal-a08); overflow: hidden; }
.pm-bar i { display: block; height: 100%; border-radius: inherit; background: var(--brand-ink); }
.pm-caption { font-size: 10px; color: var(--ink-400); text-align: right; }
@media (max-width: 560px) { .pm-body { grid-template-columns: 1fr; } .pm-side { display: none; } }

.prose { max-width: 720px; }
.prose h1 { font-size: clamp(2rem, 4vw, 2.75rem); }
.prose h2 { font-size: 1.375rem; margin-top: 2em; letter-spacing: -0.02em; }
.prose p, .prose li { color: var(--ink-700); }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: 0.4em; }
.muted { color: var(--muted); }

/* ------------------------------------------------------------------ belirme animasyonu */
.reveal { opacity: 0; transform: translateY(10px); transition: opacity .5s ease, transform .5s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } }
.no-js .reveal { opacity: 1; transform: none; }