/* ═══════════════════════════════════════════════
   HOSPITALITY SAAD 11 · 2026  —  Aero Design System
   ═══════════════════════════════════════════════ */

:root {
  --bg-primary: #1a1b2e;
  --bg-secondary: #16213e;
  --bg-tertiary: #0f3460;
  --glass: rgba(255,255,255,0.08);
  --glass-hover: rgba(255,255,255,0.13);
  --glass-dark: rgba(0,0,0,0.25);
  --glass-border: rgba(255,255,255,0.15);
  --glass-border-bright: rgba(255,255,255,0.3);
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-dark: #4f46e5;
  --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #06b6d4 100%);
  --gold: #f59e0b;
  --gold-light: #fbbf24;
  --success: #10b981;
  --warning: #f59e0b;
  --danger: #ef4444;
  --text-primary: #f1f5f9;
  --text-secondary: #cbd5e1;
  --text-muted: #94a3b8;
  --shadow: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.4);
  --radius: 16px;
  --radius-sm: 10px;
  --radius-xs: 6px;
  --transition: all 0.2s ease;
}

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

html { -webkit-tap-highlight-color: transparent; scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── DECORATIVE BACKGROUND ── */
.pattern-bg {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(99,102,241,0.18) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 90%, rgba(6,182,212,0.14) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 50%, rgba(139,92,246,0.08) 0%, transparent 60%),
    linear-gradient(160deg, #1a1b2e 0%, #16213e 50%, #0f3460 100%);
}

.pattern-bg::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      45deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.015) 40px,
      rgba(255,255,255,0.015) 41px
    ),
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,0.015) 40px,
      rgba(255,255,255,0.015) 41px
    );
}

.pattern-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: radial-gradient(circle, rgba(255,255,255,0.04) 1px, transparent 1px);
  background-size: 30px 30px;
}

/* ── TYPOGRAPHY ── */
h1, h2, h3 { font-weight: 700; letter-spacing: -0.02em; }
h1 { font-size: 1.75rem; }
h2 { font-size: 1.35rem; }
h3 { font-size: 1.1rem; }

/* ── GLASS CARD ── */
.card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  transition: var(--transition);
}

.card:hover { background: var(--glass-hover); border-color: var(--glass-border-bright); }

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--glass-border);
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,255,255,0.04);
}

.card-body { padding: 20px; }

/* ── BUTTONS ── */
.btn-primary {
  background: var(--accent-gradient);
  color: #fff;
  border: none;
  border-radius: var(--radius-sm);
  padding: 13px 24px;
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 16px rgba(99,102,241,0.4);
  letter-spacing: 0.3px;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(99,102,241,0.5); }
.btn-primary:active { transform: translateY(0); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.btn-ghost {
  background: var(--glass);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.85rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { background: var(--glass-hover); border-color: var(--glass-border-bright); color: var(--text-primary); }

.btn-danger {
  background: rgba(239,68,68,0.2);
  color: #ef4444;
  border: 1px solid rgba(239,68,68,0.3);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-danger:hover { background: rgba(239,68,68,0.3); }

.btn-success {
  background: rgba(16,185,129,0.2);
  color: #10b981;
  border: 1px solid rgba(16,185,129,0.3);
  border-radius: var(--radius-sm);
  padding: 10px 18px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: var(--transition);
}
.btn-success:hover { background: rgba(16,185,129,0.3); }

/* ── FORMS ── */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.8rem; font-weight: 600; color: var(--text-muted); margin-bottom: 6px; text-transform: uppercase; letter-spacing: 0.5px; }

.form-input {
  width: 100%;
  background: rgba(255,255,255,0.07);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
  -webkit-appearance: none;
}
.form-input:focus { border-color: var(--accent); background: rgba(255,255,255,0.1); box-shadow: 0 0 0 3px rgba(99,102,241,0.2); }
.form-input::placeholder { color: var(--text-muted); }
.form-input option { background: #1a1b2e; color: var(--text-primary); }

textarea.form-input { resize: vertical; min-height: 80px; }

/* ── BADGES ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.badge-blue { background: rgba(99,102,241,0.2); color: var(--accent-light); border: 1px solid rgba(99,102,241,0.3); }
.badge-green { background: rgba(16,185,129,0.2); color: #34d399; border: 1px solid rgba(16,185,129,0.3); }
.badge-yellow { background: rgba(245,158,11,0.2); color: #fbbf24; border: 1px solid rgba(245,158,11,0.3); }
.badge-red { background: rgba(239,68,68,0.2); color: #f87171; border: 1px solid rgba(239,68,68,0.3); }
.badge-gray { background: rgba(148,163,184,0.2); color: var(--text-muted); border: 1px solid rgba(148,163,184,0.2); }
.badge-purple { background: rgba(168,85,247,0.2); color: #c084fc; border: 1px solid rgba(168,85,247,0.3); }

/* ── ALERTS ── */
.error-msg {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.25);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: #f87171;
  font-size: 0.85rem;
  margin-bottom: 12px;
}
.success-alert {
  background: rgba(16,185,129,0.12);
  border: 1px solid rgba(16,185,129,0.25);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: #34d399;
  font-size: 0.85rem;
}

/* ── SPINNER ── */
.spinner {
  width: 22px; height: 22px;
  border: 3px solid rgba(255,255,255,0.1);
  border-top-color: var(--accent-light);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  display: inline-block;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── AVATAR ── */
.avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  object-fit: cover;
  background: var(--glass-dark);
  border: 2px solid var(--glass-border);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
}

/* ── MODAL ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  opacity: 0; pointer-events: none;
  transition: opacity 0.2s ease;
}
.modal-overlay.open { opacity: 1; pointer-events: all; }
.modal {
  background: rgba(26,27,46,0.97);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  max-width: 480px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 24px 80px rgba(0,0,0,0.6);
  transform: translateY(20px);
  transition: transform 0.2s ease;
}
.modal-overlay.open .modal { transform: translateY(0); }
.modal-header { padding: 20px 24px 16px; border-bottom: 1px solid var(--glass-border); display: flex; align-items: center; justify-content: space-between; }
.modal-body { padding: 20px 24px; }
.modal-footer { padding: 16px 24px; border-top: 1px solid var(--glass-border); display: flex; gap: 10px; justify-content: flex-end; }
.modal-close { background: none; border: none; color: var(--text-muted); cursor: pointer; font-size: 1.3rem; padding: 4px; border-radius: 6px; transition: var(--transition); }
.modal-close:hover { color: var(--text-primary); background: var(--glass); }

/* ── TOAST ── */
#toast-container { position: fixed; top: 16px; right: 16px; z-index: 9999; display: flex; flex-direction: column; gap: 8px; max-width: 320px; }
.toast {
  background: rgba(26,27,46,0.97);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 0.85rem;
  box-shadow: var(--shadow);
  animation: slideIn 0.3s ease;
  display: flex; align-items: center; gap: 10px;
}
.toast.success { border-left: 3px solid var(--success); }
.toast.error { border-left: 3px solid var(--danger); }
.toast.info { border-left: 3px solid var(--accent); }
@keyframes slideIn { from { transform: translateX(100%); opacity: 0; } to { transform: translateX(0); opacity: 1; } }

/* ── PROGRESS BAR ── */
.progress-bar { background: rgba(255,255,255,0.08); border-radius: 100px; height: 8px; overflow: hidden; }
.progress-fill {
  height: 100%; border-radius: 100px;
  background: var(--accent-gradient);
  transition: width 0.6s ease;
}

/* ── SCORE CHIP ── */
.score-chip {
  display: inline-flex; align-items: center; gap: 6px;
  background: rgba(245,158,11,0.15);
  border: 1px solid rgba(245,158,11,0.3);
  border-radius: 100px;
  padding: 4px 12px;
  color: var(--gold-light);
  font-weight: 700;
  font-size: 0.85rem;
}

/* ── LANDING (index.html) ── */
.landing-hero { text-align: center; padding: 60px 24px 40px; position: relative; z-index: 1; }

/* ── SCROLLBAR ── */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.15); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.25); }

/* ── LOADING ── */
.loading-screen {
  position: fixed; inset: 0;
  background: var(--bg-primary);
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  z-index: 9999;
  gap: 20px;
}
.loading-screen .logo { font-size: 3rem; animation: pulse 1.5s ease-in-out infinite; }
@keyframes pulse { 0%,100% { transform: scale(1); opacity: 1; } 50% { transform: scale(1.08); opacity: 0.8; } }

/* ── EMPTY STATE ── */
.empty-state { text-align: center; padding: 48px 24px; color: var(--text-muted); }
.empty-state .icon { font-size: 3rem; margin-bottom: 12px; opacity: 0.5; }
.empty-state p { font-size: 0.9rem; }

/* ── DIVIDER ── */
.section-divider { display: flex; align-items: center; gap: 12px; margin: 20px 0; color: var(--text-muted); font-size: 0.75rem; text-transform: uppercase; letter-spacing: 1px; }
.section-divider::before, .section-divider::after { content: ''; flex: 1; height: 1px; background: var(--glass-border); }

/* ── RESPONSIVE ── */
@media (max-width: 480px) {
  h1 { font-size: 1.4rem; }
  h2 { font-size: 1.15rem; }
}