/* === Design Tokens === */
:root {
  --bg-primary: #0b0e17;
  --bg-secondary: #111827;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(30, 41, 59, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
  --text-primary: #f1f5f9;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --accent: #a78bfa;
  --accent-hover: #c4b5fd;
  --accent-glow: rgba(167, 139, 250, 0.3);
  --success: #34d399;
  --warning: #fbbf24;
  --danger: #f87171;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* === Reset & Base === */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  min-height: 100vh;
  overflow-x: hidden;
  background-image:
    radial-gradient(ellipse at 20% 0%, rgba(167, 139, 250, 0.10) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 100%, rgba(56, 189, 248, 0.07) 0%, transparent 50%);
}

/* === Scrollbar === */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--text-muted);
  border-radius: 3px;
}

/* === Header === */
#app-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  background: rgba(11, 14, 23, 0.8);
  border-bottom: 1px solid var(--glass-border);
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 16px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.logo-icon {
  font-size: 28px;
  animation: dice-bounce 2s infinite;
}

@keyframes dice-bounce {

  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }

  50% {
    transform: translateY(-4px) rotate(8deg);
  }
}

.logo h1 {
  font-size: 22px;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #38bdf8);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  letter-spacing: -0.5px;
}

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

/* === Buttons === */
.btn {
  font-family: inherit;
  font-size: 14px;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: all var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.btn-primary {
  padding: 10px 20px;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff;
  box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 25px var(--accent-glow);
}

.btn-secondary {
  padding: 8px 16px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.12);
  color: var(--text-primary);
}

.btn-ghost {
  padding: 8px 12px;
  background: transparent;
  color: var(--text-secondary);
}

.btn-ghost:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.06);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 13px;
}

.btn-danger {
  padding: 8px 14px;
  background: rgba(248, 113, 113, 0.15);
  color: var(--danger);
  border: 1px solid rgba(248, 113, 113, 0.2);
}

.btn-danger:hover {
  background: rgba(248, 113, 113, 0.25);
}

.btn-success {
  padding: 8px 14px;
  background: rgba(52, 211, 153, 0.15);
  color: var(--success);
  border: 1px solid rgba(52, 211, 153, 0.2);
}

.btn-success:hover {
  background: rgba(52, 211, 153, 0.25);
}

/* === Glass Card === */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: var(--glass-shadow);
}

/* === Main Layout === */
#app-main {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px 80px;
}

/* === Stats Bar === */
.stats-bar {
  display: flex;
  justify-content: center;
  gap: 48px;
  padding: 20px 32px;
  margin-bottom: 36px;
  animation: fade-in-up 0.5s ease;
}

.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-value {
  font-size: 28px;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  font-size: 12px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
}

/* === Section Titles === */
.section-title {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text-primary);
}

.section-toggle {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0;
  margin-top: 40px;
}

.section-toggle .section-title {
  margin-bottom: 0;
}

.toggle-arrow {
  color: var(--text-muted);
  font-size: 14px;
  transition: transform var(--transition);
}

.section-toggle[aria-expanded="false"] .toggle-arrow {
  transform: rotate(-90deg);
}

/* === Bets Grid === */
.bets-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

.bets-grid.collapsed {
  display: none;
}

/* === Bet Card === */
.bet-card {
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 24px;
  transition: all var(--transition);
  animation: fade-in-up 0.4s ease both;
  position: relative;
  overflow: hidden;
}

.bet-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), #38bdf8);
  opacity: 0.7;
}

.bet-card:hover {
  transform: translateY(-3px);
  border-color: rgba(167, 139, 250, 0.2);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.bet-card.completed {
  opacity: 0.7;
}

.bet-card.completed::before {
  background: linear-gradient(90deg, var(--success), #10b981);
}

.bet-card.expired::before {
  background: linear-gradient(90deg, var(--text-muted), var(--text-muted));
}

.bet-card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 12px;
}

.bet-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
  flex: 1;
  margin-right: 8px;
}

.bet-status-badge {
  font-size: 11px;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  padding: 4px 10px;
  border-radius: 20px;
  flex-shrink: 0;
}

.badge-active {
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent);
}

.badge-completed {
  background: rgba(52, 211, 153, 0.15);
  color: var(--success);
}

.badge-expired {
  background: rgba(100, 116, 139, 0.2);
  color: var(--text-muted);
}

.bet-description {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 12px;
  line-height: 1.5;
}

.bet-stakes {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--warning);
  background: rgba(251, 191, 36, 0.1);
  padding: 5px 12px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.bet-countdown {
  font-size: 22px;
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.bet-countdown.urgent {
  color: var(--danger);
  animation: pulse-text 1.2s ease infinite;
}

@keyframes pulse-text {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.6;
  }
}

.bet-countdown-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.bet-participants {
  margin-bottom: 16px;
}

.bet-participants h4 {
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 8px;
}

.participant-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 6px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
}

.participant-row:last-child {
  border-bottom: none;
}

.participant-name {
  font-size: 14px;
  font-weight: 500;
  color: var(--text-primary);
}

.participant-guess {
  font-size: 13px;
  color: var(--text-secondary);
  font-style: italic;
}

.participant-winner {
  color: var(--success);
  font-weight: 700;
}

.bet-winner-banner {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(52, 211, 153, 0.1);
  border: 1px solid rgba(52, 211, 153, 0.2);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  margin-bottom: 16px;
  font-size: 14px;
  font-weight: 600;
  color: var(--success);
}

.bet-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* === Empty State === */
.empty-state {
  text-align: center;
  padding: 60px 20px;
  animation: fade-in-up 0.5s ease;
}

.empty-icon {
  font-size: 48px;
  display: block;
  margin-bottom: 16px;
}

.empty-state p {
  color: var(--text-muted);
  font-size: 15px;
}

/* === Modal === */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(6px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  animation: fade-in 0.2s ease;
}

.modal {
  width: 100%;
  max-width: 520px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 28px;
  animation: slide-up 0.3s ease;
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 24px;
}

.modal-header h2 {
  font-size: 20px;
  font-weight: 700;
}

.btn-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 24px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  transition: all var(--transition);
}

.btn-close:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.08);
}

/* === Form === */
.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  transition: border-color var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

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

.form-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
}

/* Participant Rows in Form */
.participant-input-row {
  display: flex;
  gap: 8px;
  margin-bottom: 8px;
  align-items: center;
}

.participant-input-row input {
  flex: 1;
  padding: 8px 12px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 13px;
}

.participant-input-row input:focus {
  outline: none;
  border-color: var(--accent);
}

.btn-remove-participant {
  background: none;
  border: none;
  color: var(--danger);
  font-size: 18px;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
  opacity: 0.6;
  transition: opacity var(--transition);
}

.btn-remove-participant:hover {
  opacity: 1;
}

/* === Winner Modal === */
.winner-options {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.winner-btn {
  width: 100%;
  padding: 14px 18px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  text-align: left;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 10px;
}

.winner-btn:hover {
  background: rgba(52, 211, 153, 0.15);
  border-color: var(--success);
  transform: translateX(4px);
}

.winner-btn .guess-label {
  font-size: 13px;
  font-weight: 400;
  color: var(--text-secondary);
  margin-left: auto;
}

/* === Admin Modal === */
.admin-users-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.admin-user-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius-sm);
}

/* === Toast === */
#toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 2000;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  animation: toast-in 0.4s ease, toast-out 0.3s ease 2.7s forwards;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.toast-success {
  background: linear-gradient(135deg, #059669, #10b981);
}

.toast-error {
  background: linear-gradient(135deg, #dc2626, #ef4444);
}

.toast-info {
  background: linear-gradient(135deg, #7c3aed, var(--accent));
}

/* === Animations === */
@keyframes fade-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

@keyframes fade-in-up {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slide-up {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateX(40px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes toast-out {
  from {
    opacity: 1;
    transform: translateX(0);
  }

  to {
    opacity: 0;
    transform: translateX(40px);
  }
}

/* === Responsive === */
@media (max-width: 768px) {
  .header-inner {
    padding: 12px 16px;
  }

  .logo-icon {
    font-size: 22px;
  }

  .logo h1 {
    font-size: 18px;
  }

  #app-main {
    padding: 20px 16px 60px;
  }

  .stats-bar {
    gap: 24px;
    padding: 16px;
  }

  .stat-value {
    font-size: 22px;
  }

  .bets-grid {
    grid-template-columns: 1fr;
  }

  .modal {
    padding: 20px;
  }

  .bet-countdown {
    font-size: 18px;
  }
}