/* ============================================================
   NASA Space Apps Challenge 2026 — Madinah
   Interactive Pitch Deck Presentation (Sponsors, Partners & Mentors)
   ============================================================ */

:root {
  --paper: #F7F5F0;
  --card: #FFFFFF;
  --card-tint: #EDEAE2;
  --line: #E3DFD5;
  --ink: #0B1730;
  --ink-dim: rgba(11, 23, 48, 0.72);
  --body-c: #4B5468;
  --gold: #FFCB52;
  --gold-deep: #B97E0A;
  --red: #F5442A;
  --shadow: 0 4px 20px rgba(11, 23, 48, 0.08);
  --r-card: 24px;
  --r-el: 16px;
  --font: "IBM Plex Sans Arabic", system-ui, -apple-system, "Segoe UI", sans-serif;
  --slide-w: 1280px;
  --slide-h: 720px;
}

/* ---------- Reset ---------- */
* { box-sizing: border-box; margin: 0; padding: 0; }
html, body {
  width: 100%; height: 100%;
  overflow: hidden;
  background: #070D1C;
  font-family: var(--font);
  color: var(--ink);
  -webkit-font-smoothing: antialiased;
}

/* ---------- Language Visibility ---------- */
html[lang="en"] .ar { display: none !important; }
html[lang="ar"] .en { display: none !important; }

/* ---------- Top Control Bar ---------- */
.deck-controls {
  position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
  height: 60px;
  background: rgba(11, 23, 48, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(247, 245, 240, 0.12);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 24px;
  color: var(--paper);
}

.deck-brand {
  display: flex; align-items: center; gap: 14px; text-decoration: none; color: var(--paper);
}
.deck-brand img { height: 32px; width: auto; }
.deck-brand-title {
  font-size: 0.88rem; font-weight: 600; opacity: 0.85; border-inline-start: 1px solid rgba(255,255,255,0.2); padding-inline-start: 14px;
}

.deck-actions { display: flex; align-items: center; gap: 10px; }

.ctrl-btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 6px;
  height: 38px; padding: 0 14px;
  background: rgba(247, 245, 240, 0.1); border: 1px solid rgba(247, 245, 240, 0.2);
  border-radius: 999px; color: var(--paper); font-family: inherit; font-size: 0.85rem; font-weight: 600;
  cursor: pointer; transition: all .2s ease;
}
.ctrl-btn:hover { background: rgba(247, 245, 240, 0.22); border-color: rgba(247, 245, 240, 0.4); }
.ctrl-btn.active { background: var(--gold); color: var(--ink); border-color: var(--gold); }
.ctrl-btn svg { flex-shrink: 0; }

.slide-counter {
  font-size: 0.88rem; font-weight: 600; letter-spacing: 1px; color: var(--gold);
  padding: 0 10px;
}

/* ---------- Presentation Stage ---------- */
.stage {
  width: 100vw; height: calc(100vh - 60px); margin-top: 60px;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
  padding: 20px;
}

.deck-wrapper {
  width: min(100%, 1366px);
  aspect-ratio: 16 / 9;
  position: relative;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
  border-radius: 16px;
  overflow: hidden;
  background: var(--paper);
}

/* ---------- Slide Component ---------- */
.slide {
  position: absolute; inset: 0;
  width: 100%; height: 100%;
  padding: 44px 52px;
  display: flex; flex-direction: column; justify-content: space-between;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: scale(0.98);
  transition: opacity 0.4s ease, transform 0.4s ease, visibility 0.4s ease;
  background: var(--paper);
  color: var(--ink);
  box-sizing: border-box;
}

.slide.active {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: scale(1);
}

/* Slide Variations */
.slide-dark {
  background: var(--ink);
  color: var(--paper);
}
.slide-dark .slide-sub { color: rgba(247, 245, 240, 0.75); }
.slide-dark .card-el {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.12);
  color: var(--paper);
}
.slide-dark .card-el p { color: rgba(247, 245, 240, 0.7); }

/* Slide Elements */
.slide-header {
  position: relative; z-index: 2; margin-bottom: 20px;
}
.slide-eyebrow {
  font-size: 0.85rem; font-weight: 700; color: var(--gold-deep);
  text-transform: uppercase; letter-spacing: 0.5px; margin-bottom: 4px;
}
.slide-dark .slide-eyebrow { color: var(--gold); }

.slide-title {
  font-size: clamp(1.7rem, 3vw, 2.3rem); font-weight: 700; line-height: 1.25;
}
.slide-title em { color: var(--gold-deep); font-style: normal; }
.slide-dark .slide-title em { color: var(--gold); }

.slide-sub {
  font-size: 0.98rem; color: var(--body-c); margin-top: 4px; max-width: 800px;
}

.slide-body {
  flex: 1; position: relative; z-index: 2;
  display: flex; flex-direction: column; justify-content: center;
}

.slide-footer {
  position: relative; z-index: 2;
  display: flex; align-items: center; justify-content: space-between;
  padding-top: 14px; border-top: 1px solid var(--line);
  font-size: 0.8rem; color: var(--body-c); font-weight: 500;
}
.slide-dark .slide-footer {
  border-top-color: rgba(247, 245, 240, 0.12);
  color: rgba(247, 245, 240, 0.5);
}
.slide-footer img { height: 24px; width: auto; }

/* ---------- Cards & Grids ---------- */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; }

.card-el {
  background: var(--card); border: 1px solid var(--line);
  border-radius: var(--r-el); padding: 20px;
  box-shadow: var(--shadow); transition: transform 0.2s ease, border-color 0.2s ease;
  display: flex; flex-direction: column; justify-content: space-between;
}
.card-el:hover { border-color: var(--gold); transform: translateY(-2px); }

.card-el-highlight {
  background: linear-gradient(135deg, #FFFFFF 0%, #FFFDF2 100%);
  border: 1.5px solid var(--gold);
}

.card-icon {
  width: 40px; height: 40px; border-radius: 12px;
  background: var(--card-tint); color: var(--ink);
  display: grid; place-items: center; margin-bottom: 12px; flex-shrink: 0;
}
.card-icon-gold {
  background: var(--gold); color: var(--ink);
}

.card-title { font-size: 1.08rem; font-weight: 700; margin-bottom: 6px; color: var(--ink); }
.slide-dark .card-title { color: var(--paper); }

.card-desc { font-size: 0.9rem; color: var(--body-c); line-height: 1.5; }

.stat-num {
  font-size: 2.5rem; font-weight: 700; color: var(--ink); line-height: 1; margin-bottom: 6px;
}
.stat-num.gold { color: var(--gold-deep); }
.slide-dark .stat-num.gold { color: var(--gold); }
.stat-label { font-size: 0.9rem; font-weight: 600; color: var(--body-c); }

.badge-tag {
  display: inline-block; padding: 3px 10px; border-radius: 999px;
  background: var(--gold); color: var(--ink); font-size: 0.75rem; font-weight: 700;
  margin-bottom: 8px; align-self: flex-start;
}

/* Feature List */
.feat-list { list-style: none; display: flex; flex-direction: column; gap: 8px; }
.feat-list li {
  display: flex; align-items: flex-start; gap: 8px;
  font-size: 0.88rem; color: var(--body-c); line-height: 1.45;
}
.slide-dark .feat-list li { color: rgba(247, 245, 240, 0.85); }
.feat-bullet {
  width: 7px; height: 7px; border-radius: 50%; background: var(--gold-deep);
  margin-top: 7px; flex-shrink: 0;
}
.slide-dark .feat-bullet { background: var(--gold); }

/* ---------- Cover Slide Specifics ---------- */
.cover-layout {
  height: 100%; display: flex; flex-direction: column; justify-content: space-between;
  position: relative; z-index: 2;
}
.cover-main { max-width: 850px; margin-top: auto; margin-bottom: auto; }
.cover-tag {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 5px 14px; border-radius: 999px; background: rgba(255, 203, 82, 0.15);
  border: 1px solid var(--gold); color: var(--gold); font-size: 0.85rem; font-weight: 700;
  margin-bottom: 20px;
}
.cover-title {
  font-size: clamp(2.2rem, 4vw, 3.4rem); font-weight: 700; line-height: 1.2; margin-bottom: 14px;
  color: var(--paper);
}
.cover-title em { color: var(--gold); font-style: normal; }
.cover-sub {
  font-size: 1.15rem; color: rgba(247, 245, 240, 0.8); max-width: 680px; margin-bottom: 28px;
}
.cover-meta {
  display: flex; flex-wrap: wrap; gap: 20px; font-size: 0.95rem; font-weight: 600; color: var(--paper);
}
.cover-meta-item { display: flex; align-items: center; gap: 8px; }
.cover-meta-item svg { color: var(--gold); }

/* SVG Cosmic Animations */
.bg-art {
  position: absolute; inset: 0; width: 100%; height: 100%; pointer-events: none; z-index: 1;
}

/* ---------- Grid Overview Modal ---------- */
.grid-modal {
  position: fixed; inset: 0; z-index: 2000;
  background: rgba(7, 13, 28, 0.96); backdrop-filter: blur(16px);
  padding: 80px 40px 40px; overflow-y: auto;
  opacity: 0; visibility: hidden; pointer-events: none;
  transition: all 0.3s ease;
}
.grid-modal.open { opacity: 1; visibility: visible; pointer-events: auto; }
.grid-modal-close {
  position: absolute; top: 24px; right: 24px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255, 255, 255, 0.1); border: 1px solid rgba(255, 255, 255, 0.2);
  color: var(--paper); font-size: 1.5rem; cursor: pointer; display: grid; place-items: center;
}
.grid-modal-title {
  color: var(--paper); font-size: 1.5rem; font-weight: 700; text-align: center; margin-bottom: 30px;
}
.thumbs-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 24px;
  max-width: 1300px; margin: 0 auto;
}
.thumb-card {
  aspect-ratio: 16 / 9; background: var(--paper); border-radius: 10px;
  padding: 12px; cursor: pointer; border: 3px solid transparent;
  transition: all 0.2s ease; overflow: hidden; display: flex; flex-direction: column; justify-content: space-between;
}
.thumb-card:hover { border-color: var(--gold); transform: translateY(-4px); }
.thumb-card.active { border-color: var(--gold); box-shadow: 0 0 20px var(--gold); }
.thumb-card-num { font-size: 0.75rem; font-weight: 700; color: var(--gold-deep); margin-bottom: 4px; }
.thumb-card-title { font-size: 0.82rem; font-weight: 700; color: var(--ink); line-height: 1.3; }

/* ---------- Bottom Floating Nav ---------- */
.floating-nav {
  position: fixed; bottom: 20px; left: 50%; transform: translateX(-50%); z-index: 1000;
  background: rgba(11, 23, 48, 0.9); backdrop-filter: blur(12px);
  border: 1px solid rgba(247, 245, 240, 0.15); border-radius: 999px;
  padding: 6px 12px; display: flex; align-items: center; gap: 12px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.4);
}
.nav-arrow {
  width: 38px; height: 38px; border-radius: 50%; border: none;
  background: rgba(255, 255, 255, 0.1); color: var(--paper); cursor: pointer;
  display: grid; place-items: center; transition: all 0.2s ease;
}
.nav-arrow:hover { background: var(--gold); color: var(--ink); }

/* ---------- Print Styles ---------- */
@media print {
  body, html { height: auto !important; overflow: visible !important; background: white !important; }
  .deck-controls, .floating-nav, .grid-modal { display: none !important; }
  .stage { width: 100% !important; height: auto !important; margin: 0 !important; padding: 0 !important; }
  .deck-wrapper { width: 100% !important; height: auto !important; aspect-ratio: auto !important; box-shadow: none !important; border-radius: 0 !important; }
  .slide {
    position: relative !important; inset: auto !important;
    width: 100% !important; height: 100vh !important;
    opacity: 1 !important; visibility: visible !important; transform: none !important;
    page-break-after: always !important; break-after: page !important;
  }
}