/* ============================================================================
   FF SURVIVAL - SHARED UI COMPONENTS & DESIGN TOKENS
   Mobile-First & Fully Responsive across Phones, Tablets, and PCs
   ============================================================================ */

:root {
  --bg-main: #0b0e14;
  --bg-surface: #131823;
  --bg-elevated: #1a2030;
  --bg-card: #151c2c;
  --primary: #ff6b00;
  --primary-hover: #ff8800;
  --primary-subtle: rgba(255, 107, 0, 0.15);
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;
  --border: #293241;
  --border-light: #374151;
  
  --success: #22c55e;
  --success-bg: rgba(34, 197, 94, 0.15);
  --warning: #f59e0b;
  --warning-bg: rgba(245, 158, 11, 0.15);
  --danger: #ef4444;
  --danger-bg: rgba(239, 68, 68, 0.15);
  --info: #3b82f6;
  --info-bg: rgba(59, 130, 246, 0.15);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-full: 9999px;

  --font-sans: 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --transition: all 180ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset & Box Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  min-height: 100%;
  background-color: var(--bg-main);
  color: var(--text-main);
  font-family: var(--font-sans);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* Typography Hierarchy */
h1, h2, h3, h4 {
  font-weight: 700;
  color: var(--text-main);
  letter-spacing: -0.01em;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 44px; /* Touch Target Compliance */
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: inherit;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
  user-select: none;
  touch-action: manipulation;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-hover));
  color: #ffffff;
  box-shadow: 0 4px 14px rgba(255, 107, 0, 0.25);
}

.btn-primary:hover:not(:disabled) {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn-secondary {
  background: var(--bg-elevated);
  color: var(--text-main);
  border-color: var(--border);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--border);
}

.btn-danger {
  background: var(--danger);
  color: #fff;
}

.btn-danger:hover:not(:disabled) {
  filter: brightness(1.1);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border-color: var(--primary);
}

.btn-outline:hover:not(:disabled) {
  background: var(--primary-subtle);
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-sm {
  min-height: 38px;
  padding: 6px 14px;
  font-size: 13px;
}

.btn-block {
  width: 100%;
}

/* Status Badges */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.badge-upcoming { background: var(--info-bg); color: var(--info); border: 1px solid rgba(59, 130, 246, 0.3); }
.badge-open { background: var(--success-bg); color: var(--success); border: 1px solid rgba(34, 197, 94, 0.3); }
.badge-full { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(245, 158, 11, 0.3); }
.badge-live { background: var(--danger-bg); color: var(--danger); border: 1px solid rgba(239, 68, 68, 0.3); animation: pulseLive 2s infinite; }
.badge-completed { background: rgba(148, 163, 184, 0.15); color: var(--text-muted); border: 1px solid var(--border); }
.badge-cancelled { background: var(--danger-bg); color: var(--danger); border: 1px solid var(--danger); }

@keyframes pulseLive {
  0% { opacity: 1; }
  50% { opacity: 0.6; }
  100% { opacity: 1; }
}

/* Modals */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(11, 14, 20, 0.88);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  z-index: 1000;
  opacity: 0;
  visibility: hidden;
  transition: opacity 200ms ease;
}

.modal-overlay.active {
  opacity: 1;
  visibility: visible;
}

.modal-card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: 0 20px 40px rgba(0,0,0,0.6);
  transform: translateY(12px) scale(0.98);
  transition: transform 200ms ease;
}

.modal-overlay.active .modal-card {
  transform: translateY(0) scale(1);
}

.modal-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 20px;
  border-bottom: 1px solid var(--border);
}

.modal-close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  line-height: 1;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.modal-close:hover {
  color: var(--text-main);
}

.modal-body {
  padding: 20px;
}

.modal-footer {
  padding: 14px 20px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 10px;
  justify-content: flex-end;
}

/* Forms & Inputs */
.form-group {
  margin-bottom: 16px;
}

.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 6px;
}

.form-input, .form-select, .form-textarea {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--text-main);
  font-size: 15px;
  font-family: inherit;
  transition: var(--transition);
}

/* Prevent auto-zooming on mobile iOS and Android */
@media (max-width: 768px) {
  .form-input, .form-select, .form-textarea {
    font-size: 16px;
  }
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 2px var(--primary-subtle);
}

.form-hint {
  font-size: 12px;
  color: var(--text-dim);
  margin-top: 4px;
}

/* Toast Notifications */
.toast-container {
  position: fixed;
  top: 16px;
  right: 16px;
  left: 16px;
  max-width: 440px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 2000;
  pointer-events: none;
}

.toast {
  pointer-events: auto;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  background: var(--bg-surface);
  border-left: 4px solid var(--primary);
  border-radius: var(--radius-sm);
  box-shadow: 0 8px 24px rgba(0,0,0,0.5);
  border: 1px solid var(--border);
  font-size: 13px;
  font-weight: 500;
  animation: slideDown 250ms ease;
  transition: opacity 250ms ease, transform 250ms ease;
}

.toast-success { border-left-color: var(--success); }
.toast-error { border-left-color: var(--danger); }
.toast-info { border-left-color: var(--info); }
.toast-warning { border-left-color: var(--warning); }

.toast.fade-out {
  opacity: 0;
  transform: translateY(-8px);
}

@keyframes slideDown {
  from { opacity: 0; transform: translateY(-16px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Loaders & Skeletons */
.loader-spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(255, 107, 0, 0.2);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 20px auto;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}