@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Orbitron:wght@400;500;600;700;800;900&display=swap');

:root {
  --bg-deep: #0a0e27;
  --bg-mid: #1a1f3a;
  --bg-surface: #0f172a;
  --accent-blue: #3b82f6;
  --accent-green: #10b981;
  --accent-purple: #8b5cf6;
  --accent-orange: #f59e0b;
  --accent-red: #ef4444;
  --text-primary: #e2e8f0;
  --text-secondary: #94a3b8;
  --border-glass: rgba(59, 130, 246, 0.2);
  --border-glass-hover: rgba(59, 130, 246, 0.5);
}

* { box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html, body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, var(--bg-deep) 0%, var(--bg-mid) 50%, var(--bg-surface) 100%);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  margin: 0;
  padding: 0;
}

.font-cyber { font-family: 'Orbitron', sans-serif; }

.hidden { display: none !important; }

.glass-card {
  background: rgba(15, 23, 42, 0.6);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border-glass);
  border-radius: 16px;
  box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

.glass-card-strong {
  background: rgba(15, 23, 42, 0.8);
  backdrop-filter: blur(30px);
  -webkit-backdrop-filter: blur(30px);
  border: 1px solid var(--border-glass-hover);
  border-radius: 16px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.gradient-text {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green), var(--accent-purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.pulse-glow { animation: pulseGlow 2s ease-in-out infinite; }

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 20px rgba(16, 185, 129, 0.4); }
  50% { box-shadow: 0 0 40px rgba(16, 185, 129, 0.8); }
}

.animated-border { position: relative; overflow: hidden; }

.animated-border::before {
  content: '';
  position: absolute;
  inset: -2px;
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green), var(--accent-purple), var(--accent-blue));
  background-size: 300% 300%;
  animation: gradientShift 4s ease infinite;
  border-radius: 18px;
  z-index: -1;
}

@keyframes gradientShift {
  0%, 100% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
}

.btn-cyber {
  background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
  border: none;
  border-radius: 12px;
  padding: 12px 20px;
  font-weight: 600;
  color: white;
  transition: all 0.3s;
  cursor: pointer;
  min-height: 44px;
  font-size: 14px;
  font-family: 'Inter', sans-serif;
}

.btn-cyber:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5); }
.btn-cyber:active:not(:disabled) { transform: translateY(0); }
.btn-cyber:disabled { opacity: 0.4; cursor: not-allowed; }

.btn-glass {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-glass);
  color: white;
  min-height: 44px;
  border-radius: 10px;
  padding: 10px 16px;
  font-size: 14px;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.3s;
}

.btn-glass:hover { background: rgba(59, 130, 246, 0.2); border-color: var(--border-glass-hover); }
.btn-glass:active { transform: scale(0.98); }

input, select, textarea {
  background: rgba(30, 41, 59, 0.6);
  border: 1px solid var(--border-glass);
  border-radius: 10px;
  padding: 12px 14px;
  color: white;
  transition: all 0.3s;
  width: 100%;
  font-size: 16px;
  min-height: 44px;
  font-family: 'Inter', sans-serif;
}

input:focus, select:focus, textarea:focus { outline: none; border-color: var(--accent-blue); box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2); }
input[type="checkbox"] { width: 20px; height: 20px; accent-color: var(--accent-green); cursor: pointer; min-height: auto; }
textarea { min-height: 80px; resize: vertical; }

.progress-bar { background: linear-gradient(90deg, var(--accent-blue), var(--accent-green)); border-radius: 999px; transition: width 0.5s ease; box-shadow: 0 0 10px rgba(59, 130, 246, 0.5); }
.progress-bar.weekly { background: linear-gradient(90deg, var(--accent-purple), #ec4899); }
.progress-bar.daily { background: linear-gradient(90deg, var(--accent-orange), var(--accent-red)); }

.tab-active { background: linear-gradient(135deg, var(--accent-blue), var(--accent-green)); color: white; box-shadow: 0 4px 15px rgba(59, 130, 246, 0.4); }
.tab-inactive { background: rgba(30, 41, 59, 0.6); color: var(--text-secondary); border: 1px solid var(--border-glass); }
.tab-inactive:hover { background: rgba(59, 130, 246, 0.1); color: white; }
.tab-btn { min-height: 44px; min-width: 44px; transition: all 0.3s; }
.tab-content { animation: fadeSlide 0.3s ease; }

@keyframes fadeSlide { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

.exercise-card { background: rgba(30, 41, 59, 0.4); border: 1px solid var(--border-glass); border-radius: 12px; padding: 16px; transition: all 0.3s; }
.exercise-card:hover { background: rgba(30, 41, 59, 0.6); border-color: var(--border-glass-hover); }
.exercise-card.completed { border-color: var(--accent-green); background: rgba(16, 185, 129, 0.1); }

.set-row { display: grid; grid-template-columns: 40px 1fr 1fr 80px; gap: 8px; align-items: center; margin-top: 8px; }
.set-row input { padding: 8px 10px; font-size: 14px; min-height: 40px; }
.set-save-btn { min-height: 40px; font-size: 12px; padding: 8px; }

.meal-slot { background: rgba(30, 41, 59, 0.4); border: 1px solid rgba(139, 92, 246, 0.2); border-radius: 12px; padding: 14px; margin-bottom: 12px; transition: all 0.3s; }
.meal-slot:hover { border-color: rgba(139, 92, 246, 0.5); }
.meal-slot.logged { border-color: var(--accent-green); background: rgba(16, 185, 129, 0.1); }

.food-item-row { display: flex; align-items: center; gap: 8px; padding: 6px 8px; border-radius: 8px; transition: background 0.2s; }
.food-item-row:hover { background: rgba(255, 255, 255, 0.05); }

.timer-badge { display: inline-flex; align-items: center; gap: 6px; padding: 6px 12px; border-radius: 999px; font-family: 'Orbitron', monospace; font-weight: 700; font-size: 13px; background: rgba(239, 68, 68, 0.2); border: 1px solid rgba(239, 68, 68, 0.5); color: #fca5a5; }
.timer-badge.done { background: rgba(16, 185, 129, 0.2); border-color: var(--accent-green); color: #6ee7b7; }

.day-title-banner { background: linear-gradient(135deg, rgba(59, 130, 246, 0.15), rgba(139, 92, 246, 0.15)); border: 1px solid rgba(59, 130, 246, 0.3); border-left: 4px solid var(--accent-blue); border-radius: 12px; padding: 14px 18px; margin-bottom: 20px; }
.day-title-banner .day-label { font-family: 'Orbitron', sans-serif; font-size: 11px; letter-spacing: 2px; color: var(--accent-blue); text-transform: uppercase; }
.day-title-banner .day-name { font-size: 20px; font-weight: 700; color: white; margin-top: 2px; }

.live-banner { background: rgba(15, 23, 42, 0.8); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-bottom: 1px solid var(--border-glass); }

.social-post { background: rgba(30, 41, 59, 0.4); border-left: 3px solid var(--accent-blue); border-radius: 12px; padding: 16px; animation: slideIn 0.3s ease; }
@keyframes slideIn { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }

.toast { position: fixed; top: 80px; right: 20px; left: 20px; padding: 12px 20px; border-radius: 10px; z-index: 1000; animation: slideInRight 0.3s ease; box-shadow: 0 8px 25px rgba(0, 0, 0, 0.3); font-size: 14px; text-align: center; font-family: 'Inter', sans-serif; }
.toast.success { background: linear-gradient(135deg, var(--accent-green), #059669); color: white; }
.toast.error { background: linear-gradient(135deg, var(--accent-red), #dc2626); color: white; }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100px); } to { opacity: 1; transform: translateX(0); } }

.chip { padding: 6px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; cursor: pointer; transition: all 0.2s; min-height: 32px; display: inline-flex; align-items: center; border: 1px solid transparent; }
.chip:hover { transform: scale(1.05); }

.auth-overlay { position: fixed; inset: 0; background: rgba(10, 14, 39, 0.95); backdrop-filter: blur(30px); -webkit-backdrop-filter: blur(30px); z-index: 9999; display: flex; align-items: center; justify-content: center; padding: 20px; }
.auth-overlay.auth-hidden { display: none !important; }
.auth-panel { width: 100%; max-width: 420px; padding: 32px; }
.auth-field { margin-bottom: 16px; }
.auth-field label { display: block; font-size: 12px; color: var(--text-secondary); margin-bottom: 6px; font-weight: 600; text-transform: uppercase; letter-spacing: 1px; }

.mobile-nav { background: rgba(15, 23, 42, 0.95); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border-top: 1px solid var(--border-glass); }
.nav-btn { min-height: 64px; min-width: 64px; }

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #1e293b; }
::-webkit-scrollbar-thumb { background: linear-gradient(135deg, var(--accent-blue), var(--accent-green)); border-radius: 3px; }

@media (max-width: 768px) {
  .set-row { grid-template-columns: 30px 1fr 1fr 60px; gap: 4px; }
  .set-row input { padding: 6px 8px; font-size: 13px; }
  .exercise-card { padding: 12px; }
  .tab-btn { font-size: 12px; padding: 8px 12px; }
  .day-title-banner .day-name { font-size: 17px; }
}

@media (max-width: 480px) {
  .set-row { grid-template-columns: 1fr 1fr; gap: 6px; }
  .set-row span:first-child { grid-column: 1 / -1; font-size: 11px; color: var(--accent-blue); font-weight: 700; font-family: 'Orbitron', sans-serif; letter-spacing: 1px; }
  .set-save-btn { grid-column: 1 / -1; }
}

@media (max-width: 768px) { input, select, textarea { font-size: 16px; } }

@supports (padding: env(safe-area-inset-bottom)) {
  .mobile-nav { padding-bottom: env(safe-area-inset-bottom); }
  body { padding-bottom: calc(80px + env(safe-area-inset-bottom)); }
}