/* ============================================
   DESIGN TOKENS
   কালার: নেভি ব্লু (লোগোর প্রধান রঙ), সোনালি, লাল
   টাইপ: Fraunces (ডিসপ্লে সেরিফ) + Inter (বডি) + IBM Plex Mono (লেবেল/তারিখ)
   ============================================ */
:root {
  --paper: #F7F5F0;
  --paper-dark: #ECEAE2;
  --ink: #101B33;
  --forest: #0B1F4D;       /* নেভি ব্লু — লোগোর প্রধান রঙ */
  --forest-deep: #071433;
  --gold: #C79A2E;
  --gold-soft: #E4C067;
  --seal-red: #B7222A;     /* লোগোর লাল */
  --line: rgba(16, 27, 51, 0.13);
  --radius: 2px;
  --shadow: 0 4px 20px rgba(11, 31, 77, 0.1);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Inter', -apple-system, 'Segoe UI', sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.font-display {
  font-family: 'Fraunces', Georgia, 'Noto Serif Bengali', serif;
}

.mono {
  font-family: 'IBM Plex Mono', monospace;
  letter-spacing: 0.04em;
}

img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

.container {
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   TOPBAR
   ============================================ */
.topbar {
  background: var(--forest-deep);
  color: var(--paper);
  font-size: 0.8rem;
}
.topbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 6px;
  padding-bottom: 6px;
}
.topbar a { opacity: 0.85; }
.topbar a:hover { opacity: 1; }
.topbar-links { display: flex; gap: 18px; }

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  background: var(--paper);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
}
.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 14px;
  padding-bottom: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.brand-mark {
  width: 46px;
  height: 46px;
  object-fit: contain;
  flex-shrink: 0;
}
.brand-name { font-family: 'Fraunces', serif; font-size: 1.25rem; font-weight: 600; line-height: 1.1; }
.brand-tagline { font-size: 0.72rem; color: var(--forest); opacity: 0.75; }

.nav-links { display: flex; gap: 28px; font-size: 0.94rem; }
.nav-links a { position: relative; padding: 4px 0; }
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0; bottom: -2px;
  width: 0; height: 2px;
  background: var(--gold);
  transition: width 0.25s ease;
}
.nav-links a:hover::after,
.nav-links a.active::after { width: 100%; }
.nav-links a.active { color: var(--forest); font-weight: 600; }

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  background: var(--forest);
  color: var(--paper);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    radial-gradient(circle at 85% 20%, rgba(199,154,46,0.18), transparent 45%),
    radial-gradient(circle at 10% 90%, rgba(199,154,46,0.10), transparent 40%);
}
.hero .container {
  position: relative;
  padding: 88px 24px 96px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 48px;
  align-items: center;
}
.hero-split-grid {
  padding: 56px 24px 72px !important;
  grid-template-columns: 1.05fr 0.95fr !important;
  align-items: center !important;
  gap: 44px !important;
}
.hero-slider-col { align-self: stretch; }
.hero-content-col .stamp-card { margin-top: 32px; transform: rotate(-0.8deg); }
.hero-eyebrow {
  font-size: 0.78rem;
  color: var(--gold-soft);
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before { content: ""; width: 28px; height: 1px; background: var(--gold-soft); }
.hero h1 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.12;
  margin-bottom: 20px;
}
.hero h1 em { font-style: italic; color: var(--gold-soft); }
.hero p.lead { font-size: 1.05rem; opacity: 0.85; max-width: 46ch; margin-bottom: 32px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-block;
  padding: 13px 26px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-gold { background: var(--gold); color: var(--forest-deep); }
.btn-gold:hover { background: var(--gold-soft); }
.btn-outline { border-color: rgba(247,245,240,0.4); color: var(--paper); }
.btn-outline:hover { border-color: var(--paper); background: rgba(247,245,240,0.08); }
.btn-forest { background: var(--forest); color: var(--paper); }
.btn-forest:hover { background: var(--forest-deep); }

.stamp-card {
  background: var(--paper);
  color: var(--ink);
  padding: 30px 28px;
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  transform: rotate(-1.2deg);
  position: relative;
  border: 1px solid var(--line);
}
.stamp-card::after {
  content: "ভর্তি চলছে";
  position: absolute;
  top: -14px; right: -10px;
  background: var(--seal-red);
  color: var(--paper);
  font-family: 'Fraunces', serif;
  font-size: 0.78rem;
  padding: 8px 16px;
  border-radius: 50%;
  transform: rotate(8deg);
  box-shadow: 0 3px 10px rgba(0,0,0,0.25);
  line-height: 1.2;
  text-align: center;
}
.stamp-card h3 { font-family: 'Fraunces', serif; font-size: 1.3rem; margin-bottom: 14px; color: var(--forest); }
.stamp-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--line); font-size: 0.9rem; }
.stamp-row:last-of-type { border-bottom: none; }
.stamp-row .label { opacity: 0.65; }
.stamp-row .value { font-weight: 600; font-family: 'IBM Plex Mono', monospace; }

/* ============================================
   SECTION HEADINGS
   ============================================ */
.section { padding: 84px 0; }
.section-alt { background: var(--paper-dark); }
.section-head { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 44px; gap: 20px; flex-wrap: wrap; }
.section-eyebrow { font-size: 0.76rem; color: var(--gold); margin-bottom: 10px; display: block; }
.section-head h2 { font-family: 'Fraunces', serif; font-weight: 500; font-size: clamp(1.6rem, 3vw, 2.2rem); color: var(--forest); }
.section-head .see-all { font-size: 0.88rem; font-weight: 600; color: var(--forest); border-bottom: 1px solid var(--gold); padding-bottom: 2px; }

/* ============================================
   PHOTO SLIDER — campus life
   ============================================ */
.photo-slider {
  position: relative;
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--forest-deep);
}
.photo-slider.in-hero {
  max-width: none;
  margin: 0;
  aspect-ratio: 4 / 3.3;
  border-radius: 10px;
  box-shadow: 0 18px 46px rgba(0,0,0,0.35);
  border: 1px solid rgba(247,245,240,0.12);
}
.slider-track { position: relative; width: 100%; height: 100%; }
.slide {
  position: absolute;
  inset: 0;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.9s ease;
}
.slide.is-active { opacity: 1; visibility: visible; z-index: 1; }
.slide img { width: 100%; height: 100%; object-fit: cover; object-position: center 28%; }
.slide::after {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(0deg, rgba(7,20,51,0.88) 0%, rgba(7,20,51,0.25) 38%, rgba(7,20,51,0) 62%);
}
.slide-caption {
  position: absolute;
  left: 0; right: 0; bottom: 0;
  padding: 28px clamp(20px, 5vw, 56px) 32px;
  z-index: 2;
  color: var(--paper);
}
.slide-caption .eyebrow {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  color: var(--gold-soft);
  letter-spacing: 0.08em;
  margin-bottom: 8px;
  display: block;
}
.slide-caption h3 {
  font-family: 'Fraunces', serif;
  font-weight: 500;
  font-size: clamp(1.15rem, 2.6vw, 1.7rem);
  max-width: 40ch;
}
.slider-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  z-index: 3;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: rgba(7,20,51,0.45);
  border: 1px solid rgba(247,245,240,0.35);
  color: var(--paper);
  display: flex; align-items: center; justify-content: center;
  cursor: pointer;
  font-size: 1.1rem;
  transition: background 0.2s ease, border-color 0.2s ease;
}
.slider-nav:hover { background: var(--gold); border-color: var(--gold); color: var(--forest-deep); }
.slider-prev { left: 18px; }
.slider-next { right: 18px; }
.slider-dots {
  position: absolute;
  right: clamp(20px, 5vw, 56px);
  bottom: 34px;
  z-index: 3;
  display: flex;
  gap: 10px;
}
.slider-dot {
  width: 9px; height: 9px;
  border-radius: 50%;
  background: rgba(247,245,240,0.4);
  border: none;
  cursor: pointer;
  padding: 0;
  transition: background 0.2s ease, transform 0.2s ease;
}
.slider-dot.is-active { background: var(--gold); transform: scale(1.25); }

/* ============================================
   NOTICE LEDGER
   ============================================ */
.ledger { border-top: 1px solid var(--line); }
.ledger-item {
  display: grid;
  grid-template-columns: 84px 1fr auto;
  gap: 22px;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--line);
  transition: background 0.15s ease;
}
.ledger-item:hover { background: rgba(199,154,46,0.06); }
.ledger-date {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.78rem;
  text-align: center;
  background: var(--forest);
  color: var(--paper);
  padding: 8px 4px;
  border-radius: var(--radius);
  line-height: 1.35;
}
.ledger-date .day { font-size: 1.15rem; font-weight: 700; display: block; }
.ledger-title { font-weight: 600; font-size: 1rem; }
.ledger-desc { font-size: 0.86rem; opacity: 0.65; margin-top: 3px; }
.tag { font-size: 0.7rem; padding: 3px 10px; border-radius: 20px; font-weight: 600; white-space: nowrap; }
.tag-urgent { background: rgba(183,34,42,0.12); color: var(--seal-red); }
.tag-general { background: rgba(11,31,77,0.1); color: var(--forest); }

/* ============================================
   CARD GRIDS
   ============================================ */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }

.program-card { background: var(--paper); border: 1px solid var(--line); padding: 30px 26px; border-radius: var(--radius); transition: transform 0.2s ease, box-shadow 0.2s ease; }
.program-card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.program-num { font-family: 'IBM Plex Mono', monospace; color: var(--gold); font-size: 0.85rem; margin-bottom: 14px; }
.program-card h3 { font-family: 'Fraunces', serif; font-size: 1.2rem; color: var(--forest); margin-bottom: 10px; }
.program-card p { font-size: 0.9rem; opacity: 0.75; }

.stat-strip { background: var(--forest); color: var(--paper); padding: 48px 0; }
.stat-grid { display: grid; grid-template-columns: repeat(4, 1fr); text-align: center; }
.stat-num { font-family: 'Fraunces', serif; font-size: 2.4rem; color: var(--gold-soft); }
.stat-label { font-size: 0.82rem; opacity: 0.75; margin-top: 4px; }

.faculty-card { text-align: center; }
.faculty-photo {
  width: 100%; aspect-ratio: 1; border-radius: 50%; overflow: hidden;
  border: 3px solid var(--paper-dark); margin-bottom: 16px; background: var(--paper-dark);
  display: flex; align-items: center; justify-content: center;
  color: var(--forest); font-family: 'Fraunces', serif; font-size: 2rem;
}
.faculty-card h4 { font-family: 'Fraunces', serif; color: var(--forest); }
.faculty-card .role { font-size: 0.84rem; opacity: 0.65; }

.gallery-item { aspect-ratio: 4/3; overflow: hidden; border-radius: var(--radius); background: var(--paper-dark); }
.gallery-item img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.35s ease; }
.gallery-item:hover img { transform: scale(1.08); }
.gallery-link { display: block; }

/* ============================================
   FORMS
   ============================================ */
.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: 0.85rem; font-weight: 600; margin-bottom: 6px; color: var(--forest); }
.form-group input, .form-group textarea, .form-group select {
  width: 100%; padding: 12px 14px; border: 1px solid var(--line); border-radius: var(--radius);
  background: var(--paper); font-family: inherit; font-size: 0.95rem;
}
.form-group input:focus, .form-group textarea:focus, .form-group select:focus { outline: 2px solid var(--gold); outline-offset: 1px; }

/* ============================================
   FOOTER
   ============================================ */
.footer { background: var(--forest-deep); color: var(--paper); padding: 64px 0 24px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 40px; border-bottom: 1px solid rgba(247,245,240,0.12); }
.footer h4 { font-family: 'Fraunces', serif; color: var(--gold-soft); margin-bottom: 18px; font-size: 1rem; }
.footer li { margin-bottom: 10px; font-size: 0.88rem; opacity: 0.8; }
.footer li a:hover { opacity: 1; text-decoration: underline; }
.footer-bottom { padding-top: 24px; display: flex; justify-content: space-between; font-size: 0.8rem; opacity: 0.6; flex-wrap: wrap; gap: 10px; }

/* ============================================
   PAGE HEADER
   ============================================ */
.page-header { background: var(--forest); color: var(--paper); padding: 56px 0; }
.page-header .section-eyebrow { color: var(--gold-soft); }
.page-header h1 { font-family: 'Fraunces', serif; font-size: 2.2rem; font-weight: 500; }
.breadcrumb { font-size: 0.82rem; opacity: 0.7; margin-top: 10px; }

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 860px) {
  .hero .container { grid-template-columns: 1fr; padding-top: 48px; padding-bottom: 56px; }
  .hero-split-grid { grid-template-columns: 1fr !important; }
  .photo-slider.in-hero { aspect-ratio: 16 / 10; }
  .nav-links { display: none; }
  .grid-3, .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .stat-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .ledger-item { grid-template-columns: 60px 1fr; }
  .ledger-item .tag { grid-column: 2; justify-self: start; margin-top: 6px; }
  .photo-slider { aspect-ratio: 4/3.4; max-height: 440px; }
  .slider-dots { bottom: 18px; }
}
@media (max-width: 520px) {
  .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .topbar-links { display: none; }
  .slider-nav { width: 34px; height: 34px; font-size: 0.95rem; }
}

/* Accessibility */
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible { outline: 2px solid var(--gold); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; animation: none !important; }
}