/* Trading Game — Shared Styles */

:root {
  --bg: #0f172a;
  --surface: #1e293b;
  --surface-light: #334155;
  --text: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #22d3ee;
  --accent-dark: #0891b2;
  --success: #4ade80;
  --danger: #f87171;
  --warning: #fbbf24;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.5;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
}

/* Login */
.login-box {
  max-width: 400px;
  margin: 10vh auto;
  background: var(--surface);
  padding: 2rem;
  border-radius: 1rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.login-box h1 {
  text-align: center;
  margin-bottom: 1.5rem;
  font-size: 1.75rem;
}

.form-group {
  margin-bottom: 1rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.25rem;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.form-group input {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--surface-light);
  border-radius: 0.5rem;
  background: var(--bg);
  color: var(--text);
  font-size: 1rem;
}

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

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 0.5rem;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
}

.btn:hover {
  opacity: 0.9;
}

.btn-primary {
  background: var(--accent);
  color: #0f172a;
}

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

.btn-warning {
  background: var(--warning);
  color: #0f172a;
}

.btn-success {
  background: var(--success);
  color: #0f172a;
}

.w-100 {
  width: 100%;
}

/* Header */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 0;
  border-bottom: 1px solid var(--surface-light);
  margin-bottom: 1.5rem;
}

.header h1 {
  font-size: 1.5rem;
}

.header .meta {
  color: var(--text-muted);
  font-size: 0.875rem;
}

/* Big Numbers */
.big-number {
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent);
  text-align: center;
  margin: 1rem 0;
}

/* Cash Register */
.register-grid {
  display: grid;
  gap: 1.5rem;
  max-width: 500px;
  margin: 0 auto;
}

.register-card {
  background: var(--surface);
  padding: 2rem;
  border-radius: 1rem;
  text-align: center;
}

.register-card h2 {
  font-size: 1.25rem;
  color: var(--text-muted);
}

.input-big {
  width: 100%;
  padding: 1rem;
  font-size: 1.5rem;
  text-align: center;
  border: 2px solid var(--surface-light);
  border-radius: 0.5rem;
  background: var(--bg);
  color: var(--text);
  margin: 1rem 0;
}

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

.recent-list {
  list-style: none;
  margin-top: 1rem;
}

.recent-list li {
  padding: 0.5rem;
  border-bottom: 1px solid var(--surface-light);
  display: flex;
  justify-content: space-between;
}

/* Leaderboard */
.dashboard-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
}

.class-column h2 {
  text-align: center;
  margin-bottom: 1rem;
  font-size: 2rem;
  color: var(--accent);
}

.class-total {
  text-align: center;
  font-size: 1.25rem;
  color: var(--text-muted);
  margin-bottom: 1.5rem;
}

.group-card {
  background: var(--surface);
  padding: 1.5rem;
  border-radius: 0.75rem;
  margin-bottom: 1rem;
  text-align: center;
  transition: transform 0.2s;
}

.group-card:hover {
  transform: scale(1.02);
}

.group-card.winner {
  border: 3px solid var(--success);
  background: #064e3b;
}

.group-card h3 {
  font-size: 1.25rem;
  margin-bottom: 0.5rem;
}

.group-card .amount {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--success);
}

.group-card .product {
  font-size: 0.875rem;
  color: var(--accent);
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.group-card .breakdown {
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--text-muted);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.25rem;
}

.overall-banner {
  text-align: center;
  padding: 1.5rem;
  background: var(--surface);
  border-radius: 1rem;
  margin-bottom: 2rem;
}

.overall-banner h2 {
  font-size: 1.5rem;
  color: var(--text-muted);
}

.overall-banner .amount {
  font-size: 3rem;
  font-weight: 800;
  color: var(--accent);
}

.winner-banner {
  text-align: center;
  padding: 1.5rem;
  background: #064e3b;
  border-radius: 1rem;
  margin-bottom: 2rem;
  border: 2px solid var(--success);
}

.winner-banner h2 {
  font-size: 1.5rem;
  color: var(--success);
}

.winner-banner .name {
  font-size: 2.5rem;
  font-weight: 800;
}

/* Admin */
.admin-table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

.admin-table th,
.admin-table td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid var(--surface-light);
}

.admin-table th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.875rem;
}

.admin-table input[type="number"],
.admin-table input[type="password"] {
  width: 100%;
  padding: 0.5rem;
  background: var(--bg);
  border: 1px solid var(--surface-light);
  border-radius: 0.25rem;
  color: var(--text);
}

.admin-table .btn-sm {
  padding: 0.4rem 0.75rem;
  font-size: 0.8rem;
}

.admin-actions {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
  margin: 1.5rem 0;
  padding: 1rem;
  background: var(--surface);
  border-radius: 0.75rem;
}

/* Messages */
.msg {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  margin-bottom: 1rem;
  display: none;
}

.msg.show {
  display: block;
}

.msg-success {
  background: #064e3b;
  color: var(--success);
}

.msg-error {
  background: #450a0a;
  color: var(--danger);
}

/* View Toggle */
.view-toggle {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
  flex-wrap: wrap;
}

.view-toggle button {
  background: var(--surface);
  color: var(--text);
  border: 2px solid var(--surface-light);
  padding: 0.5rem 1rem;
  border-radius: 0.5rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.view-toggle button.active {
  border-color: var(--accent);
  background: var(--accent-dark);
  color: white;
}

.view-toggle button:hover:not(.active) {
  border-color: var(--accent);
}

/* ─── Live Leaderboard — Dark Theme ─── */

body.leaderboard-page {
  background: var(--bg);
  color: var(--text);
  padding: 0;
  font-size: clamp(10px, 1.2vw, 16px);
}

/* Header Bar */
.dash-header {
  background: var(--surface);
  color: var(--text);
  padding: 0.5rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  border-bottom: 1px solid var(--surface-light);
  min-height: 3rem;
}

.dash-header-left {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.dash-header-left .back-btn {
  color: var(--text);
  text-decoration: none;
  font-size: 1.5rem;
  opacity: 0.7;
  transition: opacity 0.2s;
}

.dash-header-left .back-btn:hover {
  opacity: 1;
}

.dash-header-left .event-title {
  font-size: clamp(1rem, 2vw, 1.5rem);
  font-weight: 800;
  letter-spacing: -0.02em;
}

.dash-header-left .live-badge {
  background: var(--surface-light);
  padding: 0.2rem 0.5rem;
  border-radius: 0.35rem;
  font-size: clamp(0.6rem, 1vw, 0.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--accent);
}

.dash-header-right {
  text-align: right;
}

.dash-header-right .header-label {
  font-size: clamp(0.5rem, 0.9vw, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  margin-bottom: 0.1rem;
}

.dash-header-right .header-amount {
  font-size: clamp(1.25rem, 3vw, 2.5rem);
  font-weight: 800;
  color: var(--warning);
  line-height: 1;
}

/* View Toggle */
.dash-view-toggle {
  display: flex;
  gap: 0.5rem;
  margin: 0;
}

.dash-view-toggle button {
  background: var(--surface-light);
  color: var(--text);
  border: 1px solid var(--surface-light);
  padding: 0.35rem 0.8rem;
  border-radius: 0.4rem;
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

.dash-view-toggle button:hover:not(.active) {
  border-color: var(--accent);
}

.dash-view-toggle button.active {
  background: var(--accent-dark);
  border-color: var(--accent);
  color: #fff;
}

/* Leaderboard Main Content */
.dash-main {
  padding: 0.75rem 1rem;
  max-width: 100%;
  margin: 0 auto;
  padding-bottom: 4rem;
}

/* Class Section */
.dash-class-section {
  margin-bottom: 0.75rem;
}

.dash-class-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 0.35rem;
  padding: 0 0.25rem;
}

.dash-class-header .class-name {
  font-size: clamp(0.9rem, 1.8vw, 1.4rem);
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}

.dash-class-header .class-total {
  font-size: clamp(0.75rem, 1.4vw, 1.1rem);
  font-weight: 700;
  color: var(--accent);
}

.dash-class-divider {
  height: 2px;
  background: var(--accent);
  border-radius: 1px;
  margin-bottom: 0.5rem;
}

/* Group Cards Grid */
.dash-cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(clamp(130px, 14vw, 200px), 1fr));
  gap: clamp(0.4rem, 0.8vw, 0.75rem);
}

.dash-card {
  background: var(--surface);
  color: var(--text);
  border-radius: 0.6rem;
  padding: clamp(0.4rem, 0.8vw, 0.75rem);
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
  position: relative;
  overflow: hidden;
  border: 1px solid var(--surface-light);
}

.dash-card.winner {
  border: 3px solid var(--accent);
  box-shadow: 0 4px 20px rgba(34, 211, 238, 0.15);
}

.dash-card .rank-label {
  font-size: clamp(0.5rem, 0.9vw, 0.7rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.15rem;
}

.dash-card .group-name {
  font-size: clamp(0.75rem, 1.4vw, 1.1rem);
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.15rem;
  line-height: 1.2;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.dash-card .amount {
  font-size: clamp(1.1rem, 2.5vw, 1.8rem);
  font-weight: 800;
  color: var(--text);
  line-height: 1;
}

.dash-card .breakdown {
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--surface-light);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.dash-card .breakdown div {
  display: flex;
  justify-content: space-between;
}

.dash-card .breakdown .breakdown-final {
  grid-column: 1 / -1;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--success);
  margin-top: 0.25rem;
}

/* Footer Bar */
.dash-footer {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: var(--surface);
  color: var(--text);
  padding: 0.35rem 1rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3);
  border-top: 1px solid var(--surface-light);
  z-index: 100;
  min-height: 2.5rem;
}

.dash-footer .footer-stats {
  display: flex;
  gap: clamp(0.75rem, 2vw, 1.5rem);
  flex-wrap: wrap;
}

.dash-footer .footer-stat {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.dash-footer .footer-stat .stat-label {
  font-size: clamp(0.45rem, 0.8vw, 0.65rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
}

.dash-footer .footer-stat .stat-value {
  font-size: clamp(0.75rem, 1.4vw, 1.1rem);
  font-weight: 700;
  color: var(--text);
}

.dash-footer .footer-stat .stat-value.accent {
  color: var(--warning);
}

.dash-footer .live-indicator {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  font-size: clamp(0.5rem, 0.9vw, 0.75rem);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-muted);
}

.live-dot {
  width: clamp(6px, 1vw, 10px);
  height: clamp(6px, 1vw, 10px);
  background: var(--danger);
  border-radius: 50%;
  animation: live-pulse 2s infinite;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

/* Winner Announcement Banner */
.winner-announcement {
  background: linear-gradient(135deg, var(--warning) 0%, #f59e0b 100%);
  color: #0f172a;
  text-align: center;
  padding: clamp(0.4rem, 1vw, 0.75rem) clamp(0.75rem, 2vw, 1.5rem);
  margin: 0.5rem 1rem;
  border-radius: 0.5rem;
  box-shadow: 0 4px 15px rgba(251, 191, 36, 0.2);
  animation: winner-slide 0.6s ease-out;
}

@keyframes winner-slide {
  from { opacity: 0; transform: translateY(-20px); }
  to { opacity: 1; transform: translateY(0); }
}

.winner-announcement .winner-crown {
  font-size: clamp(1.2rem, 2.5vw, 2rem);
  margin-bottom: 0.1rem;
}

.winner-announcement .winner-title {
  font-size: clamp(0.55rem, 1vw, 0.8rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  opacity: 0.7;
  margin-bottom: 0.1rem;
}

.winner-announcement .winner-name {
  font-size: clamp(1rem, 2.2vw, 1.6rem);
  font-weight: 800;
  margin-bottom: 0.1rem;
}

.winner-announcement .winner-final {
  font-size: clamp(0.65rem, 1.2vw, 1rem);
  font-weight: 600;
}

.winner-announcement .winner-final span {
  font-weight: 800;
}

/* Winner Card Highlight */
.dash-card.winner-gold {
  border: 3px solid var(--warning);
  box-shadow: 0 4px 25px rgba(251, 191, 36, 0.15);
  background: linear-gradient(180deg, var(--surface) 0%, #1e293b 100%);
}

.dash-card .winner-badge {
  position: absolute;
  top: 0.3rem;
  right: 0.3rem;
  background: var(--warning);
  color: #0f172a;
  font-size: clamp(0.45rem, 0.8vw, 0.65rem);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.3rem;
  border-radius: 0.25rem;
}

/* Product Tag */
.dash-card .product-tag {
  font-size: clamp(0.55rem, 1vw, 0.75rem);
  color: var(--text-muted);
  margin-bottom: 0.15rem;
  font-style: italic;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

/* Calculation Breakdown */
.calc-breakdown {
  margin-top: 0.35rem;
  background: var(--bg);
  border-radius: 0.4rem;
  padding: clamp(0.3rem, 0.6vw, 0.5rem);
  font-size: clamp(0.55rem, 1vw, 0.8rem);
  border: 1px solid var(--surface-light);
}

.calc-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0.1rem 0;
}

.calc-row .calc-label {
  color: var(--text-muted);
}

.calc-row .calc-value {
  font-weight: 600;
  color: var(--text);
  font-variant-numeric: tabular-nums;
}

.calc-minus .calc-label::before {
  content: "− ";
  color: var(--danger);
  font-weight: 700;
}

.calc-divider {
  height: 1px;
  background: var(--surface-light);
  margin: 0.25rem 0;
}

.calc-profit .calc-label,
.calc-profit .calc-value {
  color: var(--success);
  font-weight: 700;
}

.calc-final {
  padding-top: 0.2rem;
  margin-top: 0.1rem;
  border-top: 1px solid var(--success);
}

.calc-final .calc-label,
.calc-final .calc-value {
  color: var(--success);
  font-weight: 800;
  font-size: 1.1rem;
}

/* Responsive */
@media (max-width: 768px) {
  .dash-header {
    padding: 1rem;
  }
  .dash-header-left .event-title {
    font-size: 1.25rem;
  }
  .dash-header-right .header-amount {
    font-size: 2rem;
  }
  .dash-main {
    padding: 1rem;
    padding-bottom: 8rem;
  }
  .dash-cards-grid {
    grid-template-columns: 1fr;
  }
  .dash-card .amount {
    font-size: 2.5rem;
  }
  .dash-footer {
    padding: 0.75rem 1rem;
  }
  .dash-footer .footer-stats {
    gap: 1.25rem;
  }
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
  .big-number {
    font-size: 3rem;
  }
  .group-card .amount {
    font-size: 2rem;
  }
}

/* Quick Start Banner */
.quick-start {
  background: var(--surface);
  border-left: 4px solid var(--accent);
  padding: 1rem 1.25rem;
  border-radius: 0 0.5rem 0.5rem 0;
  margin-bottom: 1.5rem;
  font-size: 0.95rem;
  line-height: 1.6;
}

.quick-start strong {
  color: var(--accent);
}

/* Section Panel */
.section-panel {
  background: var(--surface);
  padding: 1.25rem;
  border-radius: 0.75rem;
  margin-bottom: 1.25rem;
  border: 1px solid var(--surface-light);
}

/* Danger Zone */
.danger-zone {
  background: rgba(248, 113, 113, 0.05);
  border: 1px solid rgba(248, 113, 113, 0.2);
  padding: 1rem 1.25rem;
  border-radius: 0.75rem;
  margin-top: 2rem;
}

.danger-zone h3 {
  color: var(--danger);
  font-size: 1rem;
  margin-bottom: 0.5rem;
}

/* Extra Large Button */
.btn-xl {
  padding: 1rem 2rem;
  font-size: 1.25rem;
}

/* Chinese bilingual helpers */
.zh {
  font-size: 0.7em;
  opacity: 0.85;
  font-weight: 400;
  margin-left: 0.25em;
}
.zh-block {
  font-size: 0.65em;
  opacity: 0.8;
  display: block;
  margin-top: 0.15em;
}