/* ============================================================
   VGSMUN'26 — Mandate Page Styling
   Author: Antigravity
   ============================================================ */

/* ── HERO SECTION ── */
.mandate-hero {
  position: relative;
  padding: 16rem 0 8rem;
  background: linear-gradient(135deg, var(--navy-900) 0%, var(--navy-800) 100%);
  text-align: center;
  overflow: hidden;
  border-bottom: 1px solid var(--navy-border);
}

/* Subtle background glowing accent (clean, no floating particles) */
.mandate-hero::before {
  content: '';
  position: absolute;
  top: -50%;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, var(--red-glow) 0%, transparent 70%);
  pointer-events: none;
  z-index: 1;
}

.mandate-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 800px;
  margin: 0 auto;
}

.hero-tagline em {
  font-family: 'Playfair Display', serif;
  color: var(--grey-300);
  font-size: 1.6rem;
  letter-spacing: 0.05em;
}

/* ── FILTER TABS ── */
.filter-tabs-wrapper {
  margin: 4rem 0 6rem;
  display: flex;
  justify-content: center;
}

.filter-tabs {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1rem;
  background: var(--white-04);
  border: 1px solid var(--white-08);
  padding: 0.8rem;
  border-radius: 50px;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: var(--shadow-sm);
  justify-content: center;
}

.filter-btn {
  background: transparent;
  border: none;
  padding: 1rem 2.4rem;
  border-radius: 50px;
  color: var(--grey-300);
  font-family: 'Inter', sans-serif;
  font-size: 1.3rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-btn:hover {
  color: var(--white);
  background: var(--white-04);
}

.filter-btn.active {
  color: var(--white);
  background: var(--red-500);
  box-shadow: 0 4px 15px var(--red-glow);
}

/* ── DOCUMENT GRID ── */
.mandate-section {
  padding: 4rem 0 10rem;
}

.document-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 3.5rem;
}

/* ── CARD STYLING (Premium Glassmorphism + HSL Border Glow) ── */
.doc-card {
  background: linear-gradient(145deg, var(--navy-700) 0%, var(--navy-600) 100%);
  border: 1px solid var(--white-08);
  border-radius: var(--radius-lg);
  padding: 3.5rem;
  position: relative;
  overflow: hidden;
  transition: all 0.4s cubic-bezier(0.25, 0.8, 0.25, 1);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.doc-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top right, rgba(146, 21, 16, 0.15), transparent 60%);
  opacity: 0;
  transition: opacity 0.4s ease;
  pointer-events: none;
}

.doc-card:hover {
  transform: translateY(-8px);
  border-color: var(--red-500);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.4), 0 0 20px var(--red-glow);
}

.doc-card:hover::before {
  opacity: 1;
}

/* Category Badge */
.doc-badge {
  align-self: flex-start;
  font-size: 1.1rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--red-400);
  background: rgba(146, 21, 16, 0.12);
  border: 1px solid rgba(146, 21, 16, 0.2);
  padding: 0.4rem 1.2rem;
  border-radius: 50px;
  margin-bottom: 2.5rem;
  z-index: 2;
}

/* Document Icon */
.doc-icon-wrap {
  width: 60px;
  height: 60px;
  background: var(--white-04);
  border: 1px solid var(--white-08);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.6rem;
  color: var(--white);
  margin-bottom: 2rem;
  transition: all var(--transition);
  z-index: 2;
}

.doc-card:hover .doc-icon-wrap {
  background: var(--red-500);
  border-color: var(--red-500);
  box-shadow: 0 0 15px var(--red-glow);
  transform: scale(1.05);
}

/* Typography */
.doc-card h3 {
  font-family: 'Playfair Display', serif;
  font-size: 2.2rem;
  margin-bottom: 1.2rem;
  color: var(--white);
  line-height: 1.3;
  z-index: 2;
}

.doc-card p {
  font-size: 1.4rem;
  color: var(--grey-300);
  line-height: 1.6;
  margin-bottom: 3rem;
  flex-grow: 1;
  z-index: 2;
}

/* Metadata & CTA Row */
.doc-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-top: 1px solid var(--white-08);
  padding-top: 2rem;
  margin-top: auto;
  z-index: 2;
}

.doc-meta {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.meta-item {
  font-size: 1.1rem;
  color: var(--grey-400);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.meta-item i {
  color: var(--red-400);
}

.doc-download-btn {
  width: 44px;
  height: 44px;
  background: var(--white-04);
  border: 1px solid var(--white-15);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  cursor: pointer;
  transition: all var(--transition);
}

.doc-download-btn:hover {
  background: var(--red-500);
  border-color: var(--red-500);
  transform: rotate(360deg);
  box-shadow: 0 0 15px var(--red-glow);
}

/* Filtering Transitions */
.doc-card.hide {
  display: none;
}

/* Responsive tweaks */
@media (max-width: 768px) {
  .mandate-hero {
    padding: 12rem 0 6rem;
  }
  .filter-tabs {
    border-radius: 20px;
    padding: 0.5rem;
  }
  .filter-btn {
    padding: 0.8rem 1.6rem;
    font-size: 1.2rem;
  }
  .document-grid {
    grid-template-columns: 1fr;
    gap: 2.5rem;
  }
}