/* ==========================================================================
   OARK KAMPÜS — Doğal Mat Yeşil Tebeşir Tahtası (Chalkboard) Tasarım Sistemi
   Renk Paleti: #1D4533 (Mat Tahta Yeşili) & #EEEDEB (Mat Tebeşir Beyazı)
   SIFIR LED / SIFIR NEON — %100 Doğal Tebeşir & Sınıf Tahtası Hissi
   ========================================================================== */

:root {
  --color-board: #1D4533;
  --color-board-dark: #143023;
  --color-board-deep: #0e2219;
  --color-board-light: #22513c;
  --color-board-card: rgba(20, 48, 35, 0.85);
  --color-board-card-hover: rgba(24, 58, 42, 0.95);

  --color-chalk: #EEEDEB;
  --color-chalk-dim: rgba(238, 237, 235, 0.8);
  --color-chalk-faint: rgba(238, 237, 235, 0.5);
  --color-chalk-border: rgba(238, 237, 235, 0.3);
  --color-chalk-border-strong: rgba(238, 237, 235, 0.65);

  --font-main: 'Outfit', sans-serif;
  --font-chalk-title: 'Cabin Sketch', 'Patrick Hand', cursive;
  --font-chalk: 'Patrick Hand', 'Schoolbell', cursive;
  --font-math: 'Schoolbell', 'Patrick Hand', cursive;

  --transition-smooth: cubic-bezier(0.35, 0, 0.15, 1);
}

/* ─── Reset & Base ─── */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  background-color: var(--color-board); /* #1D4533 - Koyu tahta yeşili */
  scrollbar-gutter: stable;
}

body {
  font-family: var(--font-main);
  background-color: var(--color-board); /* #1D4533 */
  color: var(--color-chalk);
  min-height: 100vh;
  overflow-x: hidden;
  line-height: 1.6;
  position: relative;
  /* Tüm sayfa boyunca kesintisiz gradyant: Navbardaki derin tondan (#08160f) tahta yeşiline (#1D4533) */
  background: linear-gradient(180deg, #08160f 0%, #0d2218 18%, #133324 40%, #183e2c 68%, #1D4533 100%);
  background-repeat: no-repeat;
  background-attachment: fixed;
}

/* Tebeşir Tozu Gren Katmanı */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 1;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)'/%3E%3C/svg%3E");
}

/* Konteyner */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1.5rem;
  position: relative;
  z-index: 2;
}

/* ─── Tebeşir Tipografi ─── */
.chalk-font {
  font-family: var(--font-chalk);
}

/* ─── Navbar ─── */
.chalk-navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.85rem 0;
  background: transparent;
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
  border-bottom: 1px solid transparent;
  box-shadow: none;
  transition: background 0.3s ease, padding 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease, backdrop-filter 0.3s ease, -webkit-backdrop-filter 0.3s ease;
}

.chalk-navbar.scrolled {
  padding: 0.65rem 0;
  background: rgba(16, 38, 28, 0.98);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(238, 237, 235, 0.12);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
}

.nav-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand-group {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  z-index: 2;
}

.nav-back-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: none;
  color: var(--color-chalk);
  font-size: 1.15rem;
  padding: 0.25rem;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.2s ease, color 0.2s ease, opacity 0.2s ease;
  opacity: 0.85;
}

.nav-back-btn:hover {
  background: transparent;
  border: none;
  color: #ffffff;
  transform: translateX(-3px);
  opacity: 1;
}

.nav-brand-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo-img {
  width: auto;
  height: 28px;
  max-width: 36px;
  object-fit: contain;
  background: transparent;
  border: none;
  border-radius: 0;
  box-shadow: none;
  display: block;
}

.nav-menu {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2.2rem;
  list-style: none;
  white-space: nowrap;
}

.nav-link {
  text-decoration: none;
  color: var(--color-chalk-dim);
  font-size: 0.95rem;
  font-weight: 500;
  position: relative;
  transition: color 0.25s ease;
  padding: 0.3rem 0;
  display: inline-flex;
  align-items: center;
}

.nav-link:hover {
  color: var(--color-chalk);
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-chalk);
  border-radius: 2px;
  transition: width 0.25s ease;
}

.nav-link:hover::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  margin-left: auto;
  z-index: 2;
}

.btn-chalk-outline {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.15rem;
  border-radius: 999px;
  border: 1.5px solid rgba(238, 237, 235, 0.35);
  background: transparent;
  color: var(--color-chalk);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 600;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.25s ease;
}

.btn-chalk-outline:hover {
  background: rgba(238, 237, 235, 0.12);
  border-color: var(--color-chalk);
  transform: translateY(-2px);
}

.btn-chalk-solid {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.55rem 1.25rem;
  border-radius: 999px;
  background: var(--color-chalk);
  color: var(--color-board);
  font-family: var(--font-main);
  font-size: 0.88rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  border: none;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  transition: all 0.25s ease;
}

.btn-chalk-solid:hover {
  background: #ffffff;
  transform: translateY(-2px);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.4);
}

.btn-chalk-badge-soon {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.5rem 1.15rem;
  border-radius: 999px;
  background: rgba(244, 208, 63, 0.16);
  color: #F7DC6F;
  border: 1.5px solid rgba(244, 208, 63, 0.5);
  font-family: var(--font-main);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  user-select: none;
  cursor: default;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
}

.btn-chalk-badge-soon i {
  font-size: 0.8rem;
  color: #F7DC6F;
}

.nav-hamburger {
  display: none;
  background: transparent;
  border: none;
  color: var(--color-chalk);
  font-size: 1.4rem;
  cursor: pointer;
}

/* ─── Hero Section: Yeşil Tahta ─── */
.chalk-hero {
  position: relative;
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6.5rem 1rem 4.5rem;
  overflow: hidden;
}

/* ─── Yeşil Tahta Kapsayıcısı (Board Wrapper) ─── */
.chalk-board-wrapper {
  position: relative;
  width: 100%;
  overflow: visible;
}

.chalk-board-wrapper .container {
  padding-left: 2.2rem;
  padding-right: 2.2rem;
}

/* Sınıf Tahtası Ahşap Çerçevesi (İletişim Kısmının Üstüne Kadar Boydan Boya Saran Çerçeve) */
.chalk-board-frame {
  --beam-size: 18px;
  position: absolute;
  top: 4.8rem;
  bottom: 1.5rem;
  left: 1.2rem;
  right: 1.2rem;
  pointer-events: none;
  z-index: 10;
  box-shadow: 
    inset 0 0 50px rgba(0, 0, 0, 0.65),
    0 10px 30px rgba(0, 0, 0, 0.5);
  border-radius: 12px;
}

/* İç Açık Renkli Çıta Pah Çizgisi - Kusursuz İç Çerçeve (Sadece iç tarafta yer alır, köşelerde temiz birleşir) */
.chalk-board-frame::before {
  content: '';
  position: absolute;
  top: calc(var(--beam-size) - 3px);
  bottom: calc(var(--beam-size) - 3px);
  left: calc(var(--beam-size) - 3px);
  right: calc(var(--beam-size) - 3px);
  border: 3px solid #5a3417;
  border-radius: 2px;
  pointer-events: none;
  z-index: 3;
  box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.45);
}

/* ─── 4 Taraflı Ahşap Çıtalar (Üst, Alt, Sol, Sağ) ─── */
.wood-beam {
  position: absolute;
  background-color: #381f0d;
  box-sizing: border-box;
}

/* Üst Ahşap Çıta (Sol ve sağ çıtalarla 45° gönye birleşimi) */
.wood-beam-top {
  top: 0;
  left: 0;
  right: 0;
  height: var(--beam-size);
  background: #381f0d;
  background-image: linear-gradient(180deg, #482a15 0%, #381f0d 50%, #281408 100%);
  border-top: 2px solid #180b04;
  border-radius: 8px 8px 0 0;
  clip-path: polygon(0 0, 100% 0, calc(100% - var(--beam-size)) 100%, var(--beam-size) 100%);
  z-index: 2;
}

/* Alt Ahşap Çıta (İletişim Bölümünün Üstünde Biter; Tebeşirler & Silgi Burada Yer Alır) */
.wood-beam-bottom {
  bottom: 0;
  left: 0;
  right: 0;
  height: var(--beam-size);
  background: #381f0d;
  background-image: linear-gradient(180deg, #482a15 0%, #381f0d 50%, #281408 100%);
  border-bottom: 2px solid #180b04;
  border-radius: 0 0 8px 8px;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.75);
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-right: 4.5rem;
  gap: 1.8rem;
  pointer-events: auto;
}

/* Sol Ahşap Çıta (Üst çıtayla 45° gönye birleşimi) */
.wood-beam-left {
  top: 0;
  bottom: 0;
  left: 0;
  width: var(--beam-size);
  background: #381f0d;
  background-image: linear-gradient(90deg, #281408 0%, #381f0d 50%, #482a15 100%);
  border-left: 2px solid #180b04;
  border-radius: 8px 0 0 8px;
  clip-path: polygon(0 0, 100% var(--beam-size), 100% 100%, 0 100%);
  z-index: 1;
}

/* Sağ Ahşap Çıta (Üst çıtayla 45° gönye birleşimi) */
.wood-beam-right {
  top: 0;
  bottom: 0;
  right: 0;
  width: var(--beam-size);
  background: #381f0d;
  background-image: linear-gradient(90deg, #482a15 0%, #381f0d 50%, #281408 100%);
  border-right: 2px solid #180b04;
  border-radius: 0 8px 8px 0;
  clip-path: polygon(100% 0, 100% 100%, 0 100%, 0 var(--beam-size));
  z-index: 1;
}

/* Tebeşirlik üzerindeki tebeşirler (Alt tahtada durur) */
.chalk-stick {
  width: 44px;
  height: 8px;
  background: #EEEDEB;
  border-radius: 2px;
  box-shadow: 1px 2px 4px rgba(0, 0, 0, 0.5);
  transform: rotate(2deg) translateY(-1px);
}

.chalk-stick.stick-2 {
  width: 24px;
  height: 7px;
  transform: rotate(-3deg) translateY(-1px);
  background: #e5e4e1;
}

/* Tahta Silgisi (Ahşap sırt + keçe taban + hafif tebeşir tozu) */
.chalk-eraser {
  display: flex;
  flex-direction: column;
  width: 72px;
  height: 20px;
  transform: translateY(-5px);
  box-shadow: 0 5px 8px rgba(0, 0, 0, 0.6);
  border-radius: 3px;
  overflow: hidden;
}

.eraser-wood {
  height: 11px;
  background: #8b5a2b; /* Ahşap tutma sapı */
  border-bottom: 1px solid #5a3818;
}

.eraser-felt {
  height: 9px;
  background: #2b2b2b; /* Keçe taban */
  box-shadow: inset 0 -2px 3px rgba(238, 237, 235, 0.2);
}

/* ─── Hero Center (OARK Tebeşir Başlığı & Butonlar) ─── */
.hero-center {
  position: relative;
  z-index: 5;
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  padding-top: clamp(3rem, 7vh, 5.5rem);
}

/* Ana Başlık (OARK KAMPÜS — Tebeşir Hatlı Yazı: Ekranın tam ortasında hizalı) */
.chalk-main-title {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  line-height: 0.9;
  margin-top: clamp(2rem, 4.5vh, 4rem);
  margin-bottom: 1.4rem;
}

/* Cabin Sketch fontu ile gerçek elle taranmış tebeşir dolgusu */
.chalk-word-oark {
  font-family: var(--font-chalk-title);
  font-size: clamp(5.4rem, 15vw, 9.8rem);
  font-weight: 700;
  letter-spacing: 0.06em;
  color: #EEEDEB;
  /* SIFIR NEON: sadece mat tebeşir kontrastı ve tahta gölgesi */
  text-shadow: 1px 2px 0px rgba(10, 24, 17, 0.85);
  transform: rotate(-1.5deg);
  display: inline-block;
  user-select: none;
  transition: transform 0.25s ease;
  filter: url(#chalk-filter);
}

.chalk-word-oark:hover {
  transform: rotate(-1.5deg) scale(1.02);
}

/* KAMPÜS yazısı da OARK gibi tebeşir dolgulu fontla (Cabin Sketch) */
.chalk-word-kampus {
  font-family: var(--font-chalk-title); /* 'Cabin Sketch', cursive */
  font-size: clamp(2.6rem, 7.5vw, 5.2rem);
  font-weight: 700;
  letter-spacing: 0.12em;
  color: #EEEDEB;
  text-shadow: 1px 2px 0px rgba(10, 24, 17, 0.85);
  transform: rotate(0.8deg);
  margin-top: 0.2rem;
  display: inline-block;
  user-select: none;
  transition: transform 0.25s ease;
  filter: url(#chalk-filter);
}

.chalk-word-kampus:hover {
  transform: rotate(0.8deg) scale(1.02);
}

.chalk-underline-svg {
  width: min(280px, 85%);
  margin-top: 2px;
  line-height: 0;
  display: flex;
  justify-content: center;
}

.chalk-underline-svg svg {
  width: 100%;
  height: 10px;
  filter: drop-shadow(1px 1px 0px rgba(10, 24, 17, 0.65));
}

/* Alt Açıklama */
.chalk-subtitle {
  font-size: clamp(1rem, 2vw, 1.22rem);
  color: var(--color-chalk-dim);
  max-width: 580px;
  margin: 0 auto 1.8rem;
  line-height: 1.6;
}

/* Tebeşir Hapları (Highlights) */
.chalk-pills {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.65rem;
  margin-bottom: 2.2rem;
}

.chalk-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.35rem 0.95rem;
  border-radius: 999px;
  background: rgba(20, 48, 35, 0.9);
  border: 1px solid rgba(238, 237, 235, 0.2);
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-chalk);
  transition: all 0.25s ease;
}

.chalk-pill:hover {
  border-color: var(--color-chalk);
  transform: translateY(-2px);
  background: rgba(28, 66, 48, 0.95);
}

.chalk-pill i {
  font-size: 0.8rem;
  color: var(--color-chalk);
}

/* Mağaza Butonları (Mat & Doğal Gölgeli) */
.hero-store-buttons {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 1rem;
}

.btn-store {
  display: inline-flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1.5rem;
  border-radius: 14px;
  background: rgba(238, 237, 235, 0.1);
  border: 1.5px solid rgba(238, 237, 235, 0.4);
  color: var(--color-chalk);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
  transition: all 0.25s var(--transition-smooth);
}

.btn-store:hover {
  background: rgba(238, 237, 235, 0.2);
  border-color: var(--color-chalk);
  transform: translateY(-3px);
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.5);
}

.btn-store i {
  font-size: 1.85rem;
  color: var(--color-chalk);
}

.btn-store-text {
  display: flex;
  flex-direction: column;
  text-align: left;
  line-height: 1.15;
}

.btn-store-text small {
  font-size: 0.68rem;
  opacity: 0.75;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn-store-text span {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.btn-store.btn-store-soon {
  cursor: default;
  user-select: none;
  background: rgba(20, 48, 35, 0.7);
  border: 1.5px solid rgba(238, 237, 235, 0.3);
  padding: 0.75rem 1.35rem;
}

.btn-store.btn-store-soon:hover {
  background: rgba(20, 48, 35, 0.85);
  border-color: rgba(238, 237, 235, 0.45);
  transform: none;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

.store-badge-soon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  min-width: 32px;
  border-radius: 50%;
  background: rgba(244, 208, 63, 0.16);
  color: #F7DC6F;
  border: 1.5px solid rgba(244, 208, 63, 0.45);
  margin-left: 0.65rem;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.25);
  flex-shrink: 0;
}

.store-badge-soon i {
  font-size: 1.05rem !important;
  color: #F7DC6F !important;
  line-height: 1;
}

/* ─── Bölüm Başlıkları ─── */
.section-head {
  text-align: center;
  max-width: 650px;
  margin: 0 auto 3.5rem;
}

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-main);
  font-size: 0.92rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--color-chalk-dim);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  border-bottom: 1.5px solid rgba(238, 237, 235, 0.3);
  padding-bottom: 2px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--color-chalk);
  line-height: 1.2;
  margin-bottom: 0.85rem;
}

.section-desc {
  font-size: 1.05rem;
  color: var(--color-chalk-dim);
  line-height: 1.6;
}

.chalk-section {
  padding: 6rem 0;
  position: relative;
  z-index: 2;
}

/* ─── Nasıl Çalışır (Steps) ─── */
.steps-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
  position: relative;
}

.step-card {
  background: var(--color-board-card);
  border: 1px solid rgba(238, 237, 235, 0.15);
  border-radius: 20px;
  padding: 2.2rem;
  position: relative;
  text-align: left;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.25);
  transition: all 0.25s ease;
}

.step-card:hover {
  border-color: rgba(238, 237, 235, 0.4);
  transform: translateY(-4px);
}

.step-num {
  font-family: var(--font-main);
  font-size: 3rem;
  font-weight: 800;
  color: var(--color-chalk);
  line-height: 1;
  opacity: 0.35;
  margin-bottom: 0.85rem;
}

.step-card:hover .step-num {
  opacity: 0.85;
}

.step-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-chalk);
  margin-bottom: 0.5rem;
}

.step-desc {
  font-size: 0.95rem;
  color: var(--color-chalk-dim);
  line-height: 1.55;
}

/* ─── Öğrenci Kartı Simülasyonu ─── */
.verify-box {
  background: var(--color-board-card);
  border: 1px solid rgba(238, 237, 235, 0.2);
  border-radius: 24px;
  padding: 3rem 2.5rem;
  margin-top: 3.5rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3);
}

.verify-info {
  flex: 1;
  min-width: 280px;
}

.verify-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  background: rgba(238, 237, 235, 0.1);
  font-family: var(--font-main);
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--color-chalk);
  margin-bottom: 0.85rem;
}

.verify-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--color-chalk);
  margin-bottom: 0.65rem;
}

.verify-text {
  font-size: 1rem;
  color: var(--color-chalk-dim);
  line-height: 1.6;
}

.verify-card-visual {
  background: rgba(16, 40, 29, 0.96);
  border: 1.5px solid rgba(238, 237, 235, 0.3);
  border-radius: 18px;
  padding: 1.8rem;
  min-width: 320px;
  max-width: 380px;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.45);
}

.vcard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-bottom: 1px solid rgba(238, 237, 235, 0.15);
  padding-bottom: 0.85rem;
  margin-bottom: 1rem;
}

.vcard-logo {
  font-family: var(--font-main);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--color-chalk);
}

.vcard-status {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.8rem;
  font-weight: 700;
  color: #34d399;
  text-transform: uppercase;
}

.vcard-email-box {
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid rgba(238, 237, 235, 0.2);
  border-radius: 10px;
  padding: 0.85rem;
  font-family: 'Courier New', Courier, monospace;
  font-size: 0.95rem;
  color: var(--color-chalk);
  word-break: break-all;
  margin-bottom: 1rem;
}

.vcard-footer-info {
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--color-chalk-faint);
}

/* ─── Ekranlar (Screenshots Showcase) ─── */
.screens-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

.screen-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.screen-frame {
  width: 100%;
  max-width: 280px;
  border-radius: 28px;
  padding: 10px;
  background: rgba(16, 40, 29, 0.95);
  border: 1px solid rgba(238, 237, 235, 0.18);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.45);
  transition: transform 0.3s ease, border-color 0.3s ease;
  margin-bottom: 1rem;
}

.screen-frame:hover {
  transform: translateY(-6px);
  border-color: rgba(238, 237, 235, 0.5);
}

.screen-img {
  width: 100%;
  height: auto;
  border-radius: 20px;
  display: block;
}

.screen-caption {
  font-family: var(--font-main);
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-chalk);
  margin-bottom: 0.2rem;
}

.screen-sub {
  font-size: 0.88rem;
  color: var(--color-chalk-dim);
}

/* ─── SSS (Accordion) ─── */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.faq-item {
  background: var(--color-board-card);
  border: 1px solid rgba(238, 237, 235, 0.14);
  border-radius: 16px;
  overflow: hidden;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.25);
  transition: border-color 0.25s ease;
}

.faq-item:hover {
  border-color: rgba(238, 237, 235, 0.4);
}

.faq-question {
  width: 100%;
  padding: 1.35rem 1.6rem;
  background: transparent;
  border: none;
  color: var(--color-chalk);
  font-family: var(--font-main);
  font-size: 1.08rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  justify-content: space-between;
  cursor: pointer;
  text-align: left;
}

.faq-icon {
  font-size: 0.9rem;
  color: var(--color-chalk-dim);
  transition: transform 0.3s ease;
}

.faq-item.active .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
}

.faq-answer-inner {
  padding: 0 1.6rem 1.35rem;
  font-size: 0.95rem;
  color: var(--color-chalk-dim);
  line-height: 1.6;
}

/* ─── Bottom CTA Section ─── */
.chalk-cta-section {
  padding: 6rem 0 7.5rem;
  position: relative;
  z-index: 2;
}

.chalk-cta-box {
  background: rgba(18, 44, 32, 0.95);
  border: 1px solid rgba(238, 237, 235, 0.2);
  border-radius: 28px;
  padding: 4.5rem 2rem;
  text-align: center;
  position: relative;
  box-shadow: 0 12px 35px rgba(0, 0, 0, 0.5);
}

.cta-chalk-title {
  font-family: var(--font-chalk-title);
  font-size: clamp(2.6rem, 6vw, 4.4rem);
  color: var(--color-chalk);
  line-height: 1.1;
  margin-bottom: 1rem;
}

.cta-chalk-desc {
  font-size: 1.1rem;
  color: var(--color-chalk-dim);
  max-width: 550px;
  margin: 0 auto 2.2rem;
}

/* ─── Footer ─── */
.chalk-footer {
  background: rgba(8, 22, 15, 0.7);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-top: 1px solid rgba(238, 237, 235, 0.12);
  padding: 4.5rem 0 2rem;
  position: relative;
  z-index: 2;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr repeat(3, 1fr);
  gap: 2.5rem;
  margin-bottom: 3.5rem;
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.footer-logo-link {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.footer-logo-img {
  height: 30px;
  width: auto;
  max-width: 38px;
  object-fit: contain;
  display: block;
}

.footer-logo-title {
  font-family: var(--font-main); /* OARK'ın kendi modern fontu (Outfit) */
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--color-chalk);
  letter-spacing: -0.01em;
}

.footer-desc {
  font-size: 0.9rem;
  color: var(--color-chalk-dim);
  line-height: 1.6;
  max-width: 320px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-chalk);
  margin-bottom: 1.1rem;
  letter-spacing: 0.04em;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}

.footer-links a {
  text-decoration: none;
  font-size: 0.88rem;
  color: var(--color-chalk-dim);
  transition: color 0.25s ease;
}

.footer-links a:hover {
  color: var(--color-chalk);
}

.footer-bottom {
  border-top: 1px solid rgba(238, 237, 235, 0.1);
  padding-top: 2rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  font-size: 0.82rem;
  color: var(--color-chalk-faint);
}

/* ─── Mobile Menu Overlay ─── */
.mobile-nav-overlay {
  position: fixed;
  inset: 0;
  background: rgba(14, 34, 25, 0.98);
  backdrop-filter: blur(14px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 1.8rem;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.mobile-nav-overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.mobile-nav-link {
  font-family: var(--font-main);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-chalk);
  text-decoration: none;
  transition: transform 0.2s ease;
}

.mobile-nav-link:hover {
  transform: scale(1.08);
}

/* ─── Responsive Media Queries ─── */
@media (max-width: 1024px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .nav-menu {
    display: none;
  }

  .nav-hamburger {
    display: block;
  }

  .chalk-board-frame {
    --beam-size: 12px;
    top: 4.2rem;
    bottom: 0.85rem;
    left: 0.5rem;
    right: 0.5rem;
  }

  .wood-beam-top,
  .wood-beam-bottom {
    height: 12px;
  }

  .wood-beam-left,
  .wood-beam-right {
    width: 12px;
  }

  .wood-beam-bottom {
    padding-right: 1.25rem;
    gap: 0.9rem;
  }

  .chalk-stick {
    width: 28px;
    height: 5px;
  }

  .chalk-stick.stick-2 {
    width: 16px;
    height: 4px;
  }

  .chalk-eraser {
    width: 46px;
    height: 14px;
    transform: translateY(-3px);
  }

  .eraser-wood {
    height: 8px;
  }

  .eraser-felt {
    height: 6px;
  }

  .container {
    padding-left: 1.25rem;
    padding-right: 1.25rem;
  }

  .chalk-board-wrapper .container {
    padding-left: 1.65rem;
    padding-right: 1.65rem;
  }

  /* Hero */
  .chalk-hero {
    padding-top: 5.5rem;
    padding-bottom: 3rem;
    min-height: auto;
  }

  .hero-center {
    padding-top: clamp(1rem, 2vh, 1.8rem);
  }

  .chalk-main-title {
    margin-top: 1rem;
    margin-bottom: 0.9rem;
  }

  .chalk-word-oark {
    font-size: clamp(3.5rem, 15vw, 5.2rem);
    letter-spacing: 0.04em;
  }

  .chalk-word-kampus {
    font-size: clamp(1.8rem, 8vw, 2.6rem);
    letter-spacing: 0.08em;
  }

  .chalk-subtitle {
    font-size: 0.95rem;
    line-height: 1.55;
    padding: 0 0.5rem;
    margin-bottom: 1.3rem;
  }

  .chalk-pills {
    gap: 0.5rem;
    margin-bottom: 1.5rem;
  }

  .chalk-pill {
    font-size: 0.8rem;
    padding: 0.3rem 0.8rem;
  }

  /* Bölüm Başlıkları */
  .chalk-section {
    padding: 3.5rem 0;
  }

  .section-head {
    margin-bottom: 2.25rem;
    padding: 0 0.5rem;
  }

  .section-tag {
    font-size: 0.75rem;
    padding: 0.25rem 0.65rem;
    margin-bottom: 0.5rem;
  }

  .section-title {
    font-size: clamp(1.65rem, 6.5vw, 2.3rem);
    line-height: 1.2;
    margin-bottom: 0.5rem;
  }

  .section-desc {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  /* Nasıl Çalışır (Adım Kutucukları) */
  .steps-grid {
    grid-template-columns: 1fr;
    gap: 1.25rem;
  }

  .step-card {
    padding: 1.4rem 1.25rem;
    border-radius: 16px;
    box-shadow: 0 4px 14px rgba(0, 0, 0, 0.2);
  }

  .step-num {
    font-size: 2.2rem;
    margin-bottom: 0.35rem;
  }

  .step-title {
    font-size: 1.15rem;
    margin-bottom: 0.35rem;
  }

  .step-desc {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  /* Öğrenci Doğrulama Kutusu */
  .verify-box {
    padding: 1.75rem 1.25rem;
    margin-top: 2.25rem;
    border-radius: 18px;
    flex-direction: column;
    align-items: stretch;
    gap: 1.5rem;
  }

  .verify-info {
    min-width: 0;
    width: 100%;
  }

  .verify-badge {
    font-size: 0.72rem;
    padding: 0.28rem 0.65rem;
    margin-bottom: 0.65rem;
  }

  .verify-title {
    font-size: 1.35rem;
    line-height: 1.25;
    margin-bottom: 0.5rem;
  }

  .verify-text {
    font-size: 0.88rem;
    line-height: 1.5;
  }

  .verify-card-visual {
    min-width: 0;
    width: 100%;
    max-width: 100%;
    padding: 1.2rem;
    border-radius: 14px;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.35);
  }

  .vcard-header {
    padding-bottom: 0.65rem;
    margin-bottom: 0.75rem;
  }

  .vcard-logo {
    font-size: 0.95rem;
  }

  .vcard-status {
    font-size: 0.72rem;
  }

  .vcard-email-box {
    font-size: 0.82rem;
    padding: 0.65rem 0.75rem;
    margin-bottom: 0.75rem;
    border-radius: 8px;
  }

  .vcard-footer-info {
    font-size: 0.72rem;
  }

  /* SSS Kutuları */
  .faq-wrap {
    gap: 0.85rem;
  }

  .faq-item {
    border-radius: 14px;
  }

  .faq-question {
    padding: 1.05rem 1.15rem;
    font-size: 0.92rem;
    gap: 0.75rem;
  }

  .faq-icon {
    font-size: 0.8rem;
  }

  .faq-answer-inner {
    padding: 0 1.15rem 1rem;
    font-size: 0.85rem;
    line-height: 1.5;
  }

  /* Anlaşmalı Kulüpler */
  .partners-section {
    padding: 2.75rem 0 3.5rem;
  }

  .partners-paper {
    padding: 1.75rem 1rem 1.5rem;
    margin: 0;
    border-radius: 6px;
    box-shadow:
      0 1px 3px rgba(0, 0, 0, 0.12),
      0 8px 22px -3px rgba(0, 0, 0, 0.35);
  }

  .paper-tape {
    width: 70px;
    height: 22px;
  }

  .tape-tl {
    top: -9px;
    left: -12px;
  }

  .tape-tr {
    top: -9px;
    right: -12px;
  }

  .tape-bl {
    bottom: -9px;
    left: -12px;
  }

  .tape-br {
    bottom: -9px;
    right: -12px;
  }

  .partners-title {
    font-size: 0.88rem;
    letter-spacing: 0.14em;
    margin-bottom: 1.25rem;
    gap: 0.75rem;
  }

  .partners-title::before,
  .partners-title::after {
    width: 20px;
  }

  .marquee-content {
    gap: 2.5rem;
  }

  .partner-item img {
    height: 60px;
    width: 60px;
  }

  /* Alt CTA Kutusu */
  .chalk-cta-section {
    padding: 3.5rem 0 4.5rem;
  }

  .chalk-cta-box {
    padding: 2.5rem 1.25rem 2rem;
    border-radius: 20px;
  }

  .cta-chalk-title {
    font-size: clamp(1.9rem, 7.5vw, 2.6rem);
    margin-bottom: 0.75rem;
  }

  .cta-chalk-desc {
    font-size: 0.9rem;
    line-height: 1.5;
    margin-bottom: 1.6rem;
    padding: 0 0.5rem;
  }

  /* Butonlar */
  .hero-store-buttons {
    flex-direction: column;
    align-items: center;
    gap: 0.75rem;
    width: 100%;
  }

  .btn-store,
  .btn-store.btn-store-soon {
    width: 100%;
    max-width: 320px;
    justify-content: space-between;
    padding: 0.65rem 1rem;
    border-radius: 12px;
    gap: 0.65rem;
  }

  .btn-store i {
    font-size: 1.5rem;
  }

  .btn-store-text small {
    font-size: 0.62rem;
  }

  .btn-store-text span {
    font-size: 0.92rem;
  }

  .store-badge-soon {
    width: 28px;
    height: 28px;
    min-width: 28px;
    padding: 0;
    margin-left: auto;
  }

  .store-badge-soon i {
    font-size: 0.95rem !important;
  }

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
}

@media (max-width: 480px) {
  .chalk-board-frame {
    --beam-size: 10px;
    top: 4rem;
    bottom: 0.65rem;
    left: 0.35rem;
    right: 0.35rem;
    border-radius: 8px;
  }

  .wood-beam-top,
  .wood-beam-bottom {
    height: 10px;
  }

  .wood-beam-left,
  .wood-beam-right {
    width: 10px;
  }

  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .chalk-board-wrapper .container {
    padding-left: 1.35rem;
    padding-right: 1.35rem;
  }

  /* Başlık ve Yazılar */
  .chalk-word-oark {
    font-size: clamp(2.8rem, 14vw, 3.6rem);
  }

  .chalk-word-kampus {
    font-size: clamp(1.4rem, 7vw, 1.9rem);
  }

  .chalk-subtitle {
    font-size: 0.85rem;
    line-height: 1.48;
    padding: 0 0.25rem;
    margin-bottom: 1.2rem;
  }

  .chalk-pill {
    font-size: 0.75rem;
    padding: 0.28rem 0.75rem;
  }

  .section-head {
    margin-bottom: 1.8rem;
    padding: 0;
  }

  .section-title {
    font-size: clamp(1.5rem, 6vw, 1.9rem);
  }

  .section-desc {
    font-size: 0.82rem;
  }

  /* Kutucuklar & Kartlar */
  .step-card {
    padding: 1.2rem 1rem;
    border-radius: 14px;
  }

  .step-num {
    font-size: 1.85rem;
  }

  .step-title {
    font-size: 1.05rem;
  }

  .step-desc {
    font-size: 0.82rem;
    line-height: 1.45;
  }

  .verify-box {
    padding: 1.35rem 1rem;
    border-radius: 16px;
    margin-top: 1.8rem;
  }

  .verify-title {
    font-size: 1.2rem;
  }

  .verify-text {
    font-size: 0.82rem;
  }

  .verify-card-visual {
    padding: 1rem 0.85rem;
    border-radius: 12px;
  }

  .vcard-logo {
    font-size: 0.88rem;
  }

  .vcard-email-box {
    font-size: 0.76rem;
    padding: 0.55rem 0.65rem;
  }

  .faq-question {
    padding: 0.95rem 1rem;
    font-size: 0.88rem;
  }

  .faq-answer-inner {
    padding: 0 1rem 0.95rem;
    font-size: 0.82rem;
  }

  .chalk-cta-box {
    padding: 2rem 1rem 1.75rem;
    border-radius: 16px;
  }

  .cta-chalk-title {
    font-size: 1.75rem;
  }

  .cta-chalk-desc {
    font-size: 0.85rem;
    padding: 0;
  }

  .btn-store,
  .btn-store.btn-store-soon {
    padding: 0.6rem 0.85rem;
  }

  .btn-store i {
    font-size: 1.35rem;
  }

  .btn-store-text small {
    font-size: 0.58rem;
  }

  .btn-store-text span {
    font-size: 0.85rem;
  }

  .store-badge-soon {
    width: 26px;
    height: 26px;
    min-width: 26px;
    padding: 0;
  }

  .store-badge-soon i {
    font-size: 0.88rem !important;
  }

  .partners-paper {
    padding: 1.4rem 0.85rem 1.2rem;
  }

  .paper-tape {
    width: 58px;
    height: 18px;
  }

  .partner-item img {
    height: 50px;
    width: 50px;
  }
}

/* ─── Anlaşmalı Kulüpler (Tahtaya Bantlanmış Kağıt & Büyütülmüş Marquee) ─── */
.partners-section {
  padding: 4.5rem 0 5.5rem;
  overflow: visible;
  position: relative;
  background: transparent;
  z-index: 5;
}

.partners-paper {
  position: relative;
  max-width: 1140px;
  margin: 0 auto;
  background: linear-gradient(180deg, #FAF9F6 0%, #F5F4EF 50%, #F1EFEA 100%);
  border-radius: 4px;
  padding: 2.75rem 2rem 2.75rem;
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.12),
    0 12px 32px -4px rgba(0, 0, 0, 0.42),
    0 24px 54px -10px rgba(0, 0, 0, 0.32);
  border: 1px solid rgba(220, 218, 210, 0.85);
}

/* Köşe Bantları (Gerçekçi Yırtık / Maskeleme Bandı) */
.paper-tape {
  position: absolute;
  width: 108px;
  height: 35px;
  background: rgba(255, 255, 255, 0.62);
  box-shadow:
    0 1px 3px rgba(0, 0, 0, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(2.5px);
  -webkit-backdrop-filter: blur(2.5px);
  z-index: 10;
  pointer-events: none;
  /* Gerçekçi yırtık bant kenarları */
  clip-path: polygon(
    0% 4%, 4% 0%, 96% 0%, 100% 6%,
    97% 20%, 100% 38%, 96% 56%, 100% 74%, 97% 90%, 100% 100%,
    4% 100%, 0% 95%,
    3% 80%, 0% 64%, 4% 46%, 0% 28%, 3% 14%
  );
}

.tape-tl {
  top: -15px;
  left: -26px;
  transform: rotate(-38deg);
}

.tape-tr {
  top: -15px;
  right: -26px;
  transform: rotate(38deg);
}

.tape-bl {
  bottom: -15px;
  left: -26px;
  transform: rotate(38deg);
}

.tape-br {
  bottom: -15px;
  right: -26px;
  transform: rotate(-38deg);
}

.partners-title {
  text-align: center;
  font-family: var(--font-main);
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.24em;
  color: #173827;
  margin-bottom: 2.25rem;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.25rem;
}

.partners-title::before,
.partners-title::after {
  content: '';
  height: 2px;
  width: 50px;
  background: rgba(23, 56, 39, 0.25);
  border-radius: 2px;
}

.marquee-container {
  width: 100%;
  overflow: hidden;
  position: relative;
  padding: 1.25rem 0;
  mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
  -webkit-mask-image: linear-gradient(to right, transparent, black 8%, black 92%, transparent);
}

.marquee-content {
  display: flex;
  gap: 4.5rem;
  width: max-content;
  animation: marqueeScroll 25s linear infinite;
  align-items: center;
  will-change: transform;
}

.marquee-content:hover {
  animation-play-state: paused;
}

@keyframes marqueeScroll {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

.partner-item {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.95;
  transition: transform 0.25s ease, filter 0.25s ease;
  flex-shrink: 0;
  cursor: pointer;
  text-decoration: none;
  -webkit-user-drag: none;
}

.partner-item:hover {
  opacity: 1;
  transform: scale(1.05);
}

.partner-item img {
  height: 86px;
  width: 86px;
  object-fit: contain;
  border-radius: 50%;
  filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.08));
  transition: transform 0.25s ease, filter 0.25s ease;
}

.partner-item:hover img {
  filter: drop-shadow(0 5px 12px rgba(0, 0, 0, 0.15));
}