/**
 * ArenaPulse Comprehensive Component Library
 * Source: docs/design-system/arenapulse-design-system.md
 *         docs/design-system/tournament-component-specification.md
 *         reference-pages/components/component-library.html
 */

/* ==========================================================================
   1. BUTTON HIERARCHY
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: var(--text-label-md);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wide);
  text-align: center;
  white-space: nowrap;
  transition: all var(--transition-normal);
  cursor: pointer;
  border: 1px solid transparent;
  user-select: none;
  position: relative;
  overflow: hidden;
}

.btn:active {
  transform: scale(0.97);
}

/* Primary Button (Solid Electric Green Fill + Deep Black Text) */
.btn-primary {
  background-color: var(--color-primary-fixed);
  color: #000000;
  border-color: var(--color-primary-fixed);
  box-shadow: var(--glow-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-fixed-dim);
  border-color: var(--color-primary-fixed-dim);
  box-shadow: var(--glow-primary-lg);
}

.btn-primary:focus-visible {
  outline: 2px solid var(--color-primary-fixed);
  outline-offset: 2px;
}

/* Secondary Button (Ghost Style with Cyan Border & Cyan Text) */
.btn-secondary {
  background-color: transparent;
  color: var(--color-secondary-container);
  border-color: var(--color-secondary-container);
}

.btn-secondary:hover {
  background-color: rgba(20, 216, 255, 0.12);
  box-shadow: var(--glow-secondary);
}

/* Ghost / Surface Button */
.btn-ghost {
  background-color: var(--color-surface-container-high);
  color: var(--color-on-surface);
  border-color: var(--border-subtle);
}

.btn-ghost:hover {
  background-color: var(--color-surface-container-highest);
  color: var(--color-primary-fixed);
  border-color: rgba(105, 255, 69, 0.3);
}

/* Destructive Button (Neon Red) */
.btn-destructive {
  background-color: var(--color-error);
  color: var(--color-on-error);
  box-shadow: var(--glow-error);
}

.btn-destructive:hover {
  background-color: #ff897a;
}

/* Disabled Button State */
.btn:disabled,
.btn.disabled {
  background-color: var(--color-surface-variant) !important;
  color: var(--color-on-surface-variant) !important;
  border-color: transparent !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
  opacity: 0.5 !important;
  pointer-events: none !important;
}

/* Loading Button State */
.btn.is-loading {
  color: transparent !important;
  pointer-events: none;
}

.btn.is-loading::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  top: calc(50% - 8px);
  left: calc(50% - 8px);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: var(--color-on-surface);
  border-radius: var(--radius-full);
  animation: spin-slow 0.6s linear infinite;
}

/* Button Sizing Modifiers */
.btn-sm {
  padding: 6px 14px;
  font-size: var(--text-label-sm);
}

.btn-lg {
  padding: 16px 28px;
  font-size: var(--text-body-md);
  font-weight: var(--weight-extrabold);
}

.btn-full {
  width: 100%;
}


.btn-pill {
  border-radius: var(--radius-full);
}

/* Icon Button (Minimum 44px touch target) */
.icon-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  min-height: 44px;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  background: var(--color-surface-container);
  color: var(--color-on-surface);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: all var(--transition-normal);
  flex-shrink: 0;
  text-decoration: none;
}

.icon-btn:hover {
  background: var(--color-surface-container-highest);
  color: var(--color-primary-fixed);
  border-color: rgba(105, 255, 69, 0.4);
  box-shadow: 0 0 10px rgba(105, 255, 69, 0.2);
}

.icon-btn:active {
  transform: scale(0.94);
}

/* ==========================================================================
   2. STATUS BADGES & CHIPS
   ========================================================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: var(--radius-xs);
  font-family: var(--font-body);
  font-size: var(--text-label-sm);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  line-height: 1;
  border: 1px solid transparent;
  backdrop-filter: var(--glass-blur-sm);
  -webkit-backdrop-filter: var(--glass-blur-sm);
}

/* Live Badge (Pulsing Red) */
.badge-live {
  background-color: rgba(255, 59, 48, 0.15);
  color: #ff6b60;
  border-color: rgba(255, 59, 48, 0.4);
}

.badge-live .live-dot {
  width: 6px;
  height: 6px;
  background-color: var(--color-live);
  border-radius: var(--radius-full);
  animation: live-pulse 1.5s infinite ease-in-out;
}

/* Registration Open Badge (Electric Green) */
.badge-open {
  background-color: var(--color-status-open-bg);
  color: var(--color-primary-fixed);
  border-color: rgba(105, 255, 69, 0.35);
}

/* Filling Fast Badge (Amber Orange) */
.badge-filling {
  background-color: var(--color-warning-bg);
  color: #ffaa33;
  border-color: rgba(255, 153, 0, 0.4);
}

/* Bracket Full / Closed Badge (Muted Grey) */
.badge-closed {
  background-color: var(--color-surface-variant);
  color: var(--color-on-surface-variant);
  border-color: var(--color-outline-variant);
}

/* Verified / Official Badge (Cyan) */
.badge-verified {
  background-color: var(--color-status-verified-bg);
  color: var(--color-secondary-container);
  border-color: rgba(20, 216, 255, 0.35);
}

/* Filter Chips (Horizontal filter selector) */
.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 18px;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-size: var(--text-label-md);
  font-weight: var(--weight-semibold);
  color: var(--color-on-surface-variant);
  background: var(--color-surface-container-high);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  white-space: nowrap;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}

.filter-chip:hover {
  background: var(--color-surface-container-highest);
  color: var(--color-on-surface);
}

.filter-chip.active {
  background: var(--color-primary-fixed);
  color: #000000;
  border-color: var(--color-primary-fixed);
  box-shadow: 0 0 12px rgba(76, 227, 40, 0.3);
  font-weight: var(--weight-bold);
}

/* ==========================================================================
   3. TOURNAMENT CARDS & MODULES
   ========================================================================== */

.glass-card {
  background: var(--color-surface-container);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
  transition: all var(--transition-normal);
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.18);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

/* 3.1 Featured Tournament Card (Hero View) */
.tournament-card-featured {
  background: var(--color-surface-container);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid rgba(105, 255, 69, 0.25);
  box-shadow: 0 0 25px rgba(0, 0, 0, 0.6);
  position: relative;
}

.tournament-card-featured .card-media {
  height: 170px;
  width: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--color-surface-container-highest);
}

.tournament-card-featured .card-media-gradient {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, var(--color-surface-container) 0%, rgba(29, 31, 38, 0.6) 60%, transparent 100%);
}

.tournament-card-featured .card-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  position: relative;
  z-index: var(--z-card-overlay);
}

/* 3.2 Standard Tournament Card (Grid View) */
.tournament-card-grid {
  background: var(--color-surface-container);
  border-radius: var(--radius-xl);
  overflow: hidden;
  border: 1px solid var(--border-subtle);
  display: flex;
  flex-direction: column;
  transition: all var(--transition-normal);
}

.tournament-card-grid:hover {
  border-color: rgba(105, 255, 69, 0.4);
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.5);
}

.tournament-card-grid .card-media {
  height: 130px;
  width: 100%;
  position: relative;
  background-size: cover;
  background-position: center;
  background-color: var(--color-surface-container-highest);
}

.tournament-card-grid .card-body {
  padding: var(--space-4);
  display: flex;
  flex-direction: column;
  flex: 1;
  justify-content: space-between;
  gap: var(--space-3);
  background: var(--color-surface-container-low);
}

/* 3.3 Compact List Card (Horizontal Dense View) */
.tournament-card-compact {
  background: var(--color-surface-container);
  border-radius: var(--radius-lg);
  border: 1px solid var(--border-subtle);
  padding: var(--space-3);
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: all var(--transition-fast);
}

.tournament-card-compact:hover {
  border-color: rgba(20, 216, 255, 0.4);
  background: var(--color-surface-container-high);
}

.tournament-card-compact .thumb {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  object-fit: cover;
  flex-shrink: 0;
  background: var(--color-surface-container-highest);
}

/* Progress Bars */
.progress-track {
  width: 100%;
  height: 6px;
  background: var(--color-surface-container-highest);
  border-radius: var(--radius-full);
  overflow: hidden;
  position: relative;
}

.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: var(--color-primary-fixed);
  box-shadow: 0 0 8px rgba(105, 255, 69, 0.5);
  transition: width 0.4s ease;
}

.progress-fill.fill-error {
  background: var(--color-error);
  box-shadow: 0 0 8px rgba(255, 59, 48, 0.5);
}

.progress-fill.fill-secondary {
  background: var(--color-secondary-fixed);
  box-shadow: 0 0 8px rgba(20, 216, 255, 0.5);
}

/* ==========================================================================
   4. FORM ELEMENTS & INPUT CONTROLS
   ========================================================================== */

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  width: 100%;
}

.form-label {
  font-family: var(--font-body);
  font-size: var(--text-label-sm);
  font-weight: var(--weight-bold);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  color: var(--color-on-surface-variant);
}

.input-wrap {
  position: relative;
  display: flex;
  align-items: center;
  width: 100%;
}

.input-wrap .input-icon-left {
  position: absolute;
  left: 12px;
  color: var(--color-on-surface-variant);
  pointer-events: none;
}

.input-wrap .input-icon-right {
  position: absolute;
  right: 12px;
  color: var(--color-on-surface-variant);
}

.form-input {
  width: 100%;
  background-color: var(--surface-floor);
  border: 1px solid var(--color-outline-variant);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  color: var(--color-on-surface);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  transition: all var(--transition-normal);
}

.input-wrap .form-input.has-left-icon {
  padding-left: 40px;
}

.input-wrap .form-input.has-right-icon {
  padding-right: 40px;
}

.form-input:focus {
  outline: none;
  border-color: var(--color-secondary-container);
  box-shadow: 0 0 0 1px var(--color-secondary-container);
}

.form-input::placeholder {
  color: rgba(188, 203, 178, 0.4);
}

/* Input Error State */
.form-input.has-error {
  border-color: var(--color-error);
  background-color: rgba(147, 0, 10, 0.15);
}

.form-input.has-error:focus {
  border-color: var(--color-error);
  box-shadow: 0 0 0 1px var(--color-error);
}

/* Custom Select */
.form-select {
  width: 100%;
  background-color: var(--color-surface-container-highest);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  padding: 12px 36px 12px 14px;
  color: var(--color-on-surface);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' height='20' viewBox='0 -960 960 960' width='20' fill='%23bccbb2'%3E%3Cpath d='M480-345 240-585l56-56 184 184 184-184 56 56-240 240Z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 10px center;
  cursor: pointer;
}

.form-select:focus {
  outline: none;
  border-color: var(--color-primary-fixed);
  box-shadow: 0 0 0 1px var(--color-primary-fixed);
}

/* Radio Selection Cards (Participation Type / Payment Selector) */
.radio-card {
  background: var(--color-surface-container);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-3);
  cursor: pointer;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  gap: 4px;
  position: relative;
  text-align: left;
}

.radio-card:hover {
  border-color: rgba(105, 255, 69, 0.3);
}

.radio-card.active {
  border-color: var(--color-primary-fixed);
  background: rgba(105, 255, 69, 0.06);
  box-shadow: 0 0 15px rgba(105, 255, 69, 0.25);
}

/* Toggle Switch */
.toggle-switch {
  position: relative;
  display: inline-block;
  width: 44px;
  height: 24px;
}

.toggle-switch input {
  opacity: 0;
  width: 0;
  height: 0;
}

.toggle-slider {
  position: absolute;
  cursor: pointer;
  inset: 0;
  background-color: var(--color-surface-variant);
  transition: .3s;
  border-radius: var(--radius-full);
}

.toggle-slider:before {
  position: absolute;
  content: "";
  height: 18px;
  width: 18px;
  left: 3px;
  bottom: 3px;
  background-color: white;
  transition: .3s;
  border-radius: var(--radius-full);
}

input:checked + .toggle-slider {
  background-color: var(--color-primary-fixed);
}

input:checked + .toggle-slider:before {
  transform: translateX(20px);
}

/* ==========================================================================
   5. PLAYER AVATARS & RANKS
   ========================================================================== */

.player-avatar {
  position: relative;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.player-avatar img {
  width: 100%;
  height: 100%;
  border-radius: var(--radius-full);
  object-fit: cover;
}

.player-avatar.size-sm { width: 32px; height: 32px; }
.player-avatar.size-md { width: 44px; height: 44px; }
.player-avatar.size-lg { width: 64px; height: 64px; }
.player-avatar.size-xl { width: 88px; height: 88px; }

.player-avatar .online-dot {
  position: absolute;
  bottom: 1px;
  right: 1px;
  width: 10px;
  height: 10px;
  background: var(--color-primary-fixed);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-surface-dim);
  box-shadow: 0 0 6px var(--color-primary-fixed);
}

/* ==========================================================================
   6. WALLET & TRANSACTION ROWS
   ========================================================================== */

.transaction-item {
  background: var(--color-surface-container);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 12px 14px;
  display: flex;
  align-items: center;
  gap: var(--space-3);
  transition: all var(--transition-fast);
}

.transaction-item:hover {
  background: var(--color-surface-container-high);
}

.tx-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.tx-icon-wrap.credit {
  background: rgba(105, 255, 69, 0.12);
  color: var(--color-primary-fixed);
  border: 1px solid rgba(105, 255, 69, 0.25);
}

.tx-icon-wrap.debit {
  background: rgba(255, 59, 48, 0.12);
  color: var(--color-error);
  border: 1px solid rgba(255, 59, 48, 0.25);
}

/* ==========================================================================
   7. EMPTY STATES & LOADING SKELETONS
   ========================================================================== */

.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--space-8) var(--space-4);
  gap: var(--space-3);
}

.empty-state .empty-icon {
  width: 64px;
  height: 64px;
  border-radius: var(--radius-full);
  background: var(--color-surface-container-high);
  color: var(--color-on-surface-variant);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 32px;
}

.skeleton {
  background: linear-gradient(90deg, var(--color-surface-container) 25%, var(--color-surface-container-high) 50%, var(--color-surface-container) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.8s infinite linear;
  border-radius: var(--radius-sm);
}

/* ==========================================================================
   8. MODALS & TOAST NOTIFICATIONS
   ========================================================================== */

.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(12, 14, 20, 0.85);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-normal);
}

.modal-backdrop.active {
  opacity: 1;
  pointer-events: auto;
}

.modal-sheet {
  background: var(--color-surface-container);
  border: 1px solid var(--border-glass);
  border-radius: var(--radius-2xl);
  width: 100%;
  max-width: 440px;
  max-height: 90vh;
  overflow-y: auto;
  padding: var(--space-5);
  box-shadow: var(--shadow-xl);
  transform: translateY(20px);
  transition: transform var(--transition-slow);
}

.modal-backdrop.active .modal-sheet {
  transform: translateY(0);
}

/* Toast Container */
.toast-container {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  z-index: var(--z-toast);
  display: flex;
  flex-direction: column;
  gap: 8px;
  width: calc(100% - 32px);
  max-width: 400px;
  pointer-events: none;
}

.toast {
  background: var(--color-surface-container-highest);
  border: 1px solid var(--color-primary-fixed-dim);
  color: var(--color-on-surface);
  padding: 10px 16px;
  border-radius: var(--radius-lg);
  font-family: var(--font-body);
  font-size: var(--text-body-md);
  display: flex;
  align-items: center;
  gap: 10px;
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5);
  pointer-events: auto;
  animation: toast-in 0.25s ease-out;
}

.toast.toast-error {
  border-color: var(--color-error);
}