:root {
  --color-primary: #1a1a2e;
  --color-primary-light: #16213e;
  --color-accent: #e94560;
  --color-up: #22c55e;
  --color-down: #ef4444;
  --color-neutral: #6b7280;
  --color-bg: #f8fafc;
  --color-card: #ffffff;
  --color-text: #1e293b;
  --color-text-light: #94a3b8;
  --color-border: #e2e8f0;
  --radius: 8px;
  --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  --max-width: 1200px;
  --nav-height: 56px;
}

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

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

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
}

/* ===== Navbar ===== */
.navbar {
  background: var(--color-primary);
  color: #fff;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  padding: 0 16px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
}

.navbar-brand {
  font-size: 18px;
  font-weight: 700;
  color: #fff;
}

.navbar-brand:hover {
  color: var(--color-accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 20px;
  list-style: none;
}

.nav-links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 14px;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: #fff;
}

.navbar .hamburger {
  display: none;
  background: none;
  border: none;
  color: #fff;
  font-size: 24px;
  cursor: pointer;
}

/* ===== Container ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px;
}

.page-title {
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.page-subtitle {
  color: var(--color-text-light);
  font-size: 14px;
  margin-bottom: 16px;
}

/* ===== Cards ===== */
.card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 12px;
  transition: box-shadow 0.2s;
  cursor: pointer;
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.card-league {
  font-size: 12px;
  color: var(--color-text-light);
  background: var(--color-bg);
  padding: 2px 8px;
  border-radius: 4px;
}

.card-match {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
}

.card-odds {
  display: flex;
  gap: 8px;
  font-size: 14px;
  margin-bottom: 8px;
}

.odds-item {
  display: flex;
  align-items: center;
  gap: 4px;
}

.odds-value {
  font-weight: 600;
  font-variant-numeric: tabular-nums;
}

.odds-label {
  color: var(--color-text-light);
  font-size: 12px;
}

.badge-up {
  color: var(--color-up);
}

.badge-down {
  color: var(--color-down);
}

.badge-neutral {
  color: var(--color-neutral);
}

/* ===== Strength Bar ===== */
.strength-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-top: 8px;
}

.bar-track {
  flex: 1;
  height: 6px;
  background: var(--color-border);
  border-radius: 3px;
  overflow: hidden;
}

.bar-fill {
  height: 100%;
  border-radius: 3px;
  transition: width 0.5s;
}

.bar-fill.high {
  background: var(--color-down);
}

.bar-fill.medium {
  background: #f59e0b;
}

.bar-fill.low {
  background: var(--color-up);
}

.strength-label {
  font-size: 12px;
  white-space: nowrap;
  font-weight: 600;
}

/* ===== Auth Forms ===== */
.auth-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: calc(100vh - var(--nav-height));
  padding: 16px;
}

.auth-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
  padding: 32px;
  width: 100%;
  max-width: 400px;
}

.auth-card h2 {
  text-align: center;
  margin-bottom: 24px;
  font-size: 20px;
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 4px;
  color: var(--color-text);
}

.form-group input {
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus {
  border-color: var(--color-primary);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 20px;
  border: none;
  border-radius: var(--radius);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.2s;
  width: 100%;
}

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

.btn-primary:hover {
  opacity: 0.9;
}

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

.auth-link {
  text-align: center;
  margin-top: 16px;
  font-size: 14px;
  color: var(--color-text-light);
}

.auth-link a {
  color: var(--color-primary);
  font-weight: 500;
}

/* ===== Tables ===== */
.table-wrapper {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 14px;
}

th, td {
  padding: 10px 12px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
}

th {
  background: var(--color-bg);
  font-weight: 600;
  font-size: 12px;
  color: var(--color-text-light);
  text-transform: uppercase;
}

tr:hover {
  background: #f1f5f9;
}

/* ===== Filters ===== */
.filter-bar {
  display: flex;
  gap: 12px;
  margin-bottom: 16px;
  flex-wrap: wrap;
  align-items: center;
}

.filter-bar select, .filter-bar input {
  padding: 8px 12px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  font-size: 14px;
  outline: none;
}

.filter-bar input[type="date"] {
  width: 180px;
}

.filter-bar .btn {
  width: auto;
  padding: 8px 20px;
}

/* ===== Stats Grid ===== */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 20px;
  text-align: center;
}

.stat-card .stat-value {
  font-size: 28px;
  font-weight: 700;
  color: var(--color-primary);
}

.stat-card .stat-label {
  font-size: 13px;
  color: var(--color-text-light);
  margin-top: 4px;
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  top: 72px;
  right: 16px;
  z-index: 999;
}

.toast {
  padding: 12px 20px;
  border-radius: var(--radius);
  color: #fff;
  font-size: 14px;
  margin-bottom: 8px;
  animation: slideIn 0.3s ease;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

.toast-success { background: var(--color-up); }
.toast-error { background: var(--color-down); }
.toast-info { background: var(--color-primary); }

@keyframes slideIn {
  from { transform: translateX(100%); opacity: 0; }
  to { transform: translateX(0); opacity: 1; }
}

/* ===== Loading ===== */
.loading {
  text-align: center;
  padding: 40px;
  color: var(--color-text-light);
}

.spinner {
  display: inline-block;
  width: 32px;
  height: 32px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

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

/* ===== Canvas chart ===== */
.chart-wrapper {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 16px;
  margin-bottom: 16px;
}

.chart-wrapper canvas {
  width: 100% !important;
  height: auto !important;
  max-height: 300px;
}

/* ===== Empty state ===== */
.empty-state {
  text-align: center;
  padding: 48px 16px;
  color: var(--color-text-light);
}

.empty-state .icon {
  font-size: 48px;
  margin-bottom: 12px;
}

/* ===== Lure direction tag ===== */
.tag {
  display: inline-block;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 12px;
  font-weight: 600;
}

.tag-lure { background: #fef2f2; color: var(--color-down); }
.tag-block { background: #f0fdf4; color: var(--color-up); }

/* ===== Responsive ===== */
@media (max-width: 767px) {
  .nav-links {
    display: none;
    position: absolute;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: var(--color-primary);
    flex-direction: column;
    padding: 16px;
    gap: 12px;
  }

  .nav-links.open {
    display: flex;
  }

  .navbar .hamburger {
    display: block;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .filter-bar {
    flex-direction: column;
    align-items: stretch;
  }

  .filter-bar input[type="date"] {
    width: 100%;
  }

  .card-odds {
    flex-wrap: wrap;
  }

  .auth-card {
    padding: 20px;
  }
}

@media (min-width: 768px) and (max-width: 1023px) {
  .match-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}

@media (min-width: 1024px) {
  .match-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
  }
}