/* ============================================
   DESIGN TOKENS & ROOT VARIABLES
   ============================================ */

:root {
  /* Light Mode Colors */
  --color-bg: #ffffff;
  --color-bg-secondary: #f8f9fa;
  --color-bg-tertiary: #f0f2f5;
  --color-text: #1a1a1a;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;
  --color-border: #e0e0e0;
  
  /* Brand Colors - Sporty */
  --color-primary: #0066cc;
  --color-primary-dark: #0052a3;
  --color-primary-light: #e6f0ff;
  --color-accent: #ff6b35;
  --color-success: #2ecc71;
  --color-warning: #f39c12;
  --color-error: #e74c3c;
  
  /* Spacing Scale */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  
  /* Typography */
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'Playfair Display', serif;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.5rem;
  --font-size-2xl: 2rem;
  --font-size-3xl: 2.5rem;
  
  /* Border Radius */
  --radius-sm: 0.375rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
  
  /* Transitions */
  --transition-fast: 150ms ease-in-out;
  --transition-base: 250ms ease-in-out;
  --transition-slow: 350ms ease-in-out;
}

/* Dark Mode */
@media (prefers-color-scheme: dark) {
  body.dark-mode,
  :root.dark-mode {
    --color-bg: #0f0f0f;
    --color-bg-secondary: #1a1a1a;
    --color-bg-tertiary: #2a2a2a;
    --color-text: #ffffff;
    --color-text-secondary: #b0b0b0;
    --color-text-muted: #777777;
    --color-border: #333333;
    --color-primary-light: #1a3a66;
  }
}

/* ============================================
   RESET & BASE STYLES
   ============================================ */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  background-color: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  transition: background-color var(--transition-base), color var(--transition-base);
}

/* ============================================
   TYPOGRAPHY
   ============================================ */

h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.2;
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: var(--font-size-3xl);
  font-family: var(--font-display);
  letter-spacing: -0.02em;
}

h2 {
  font-size: var(--font-size-2xl);
  color: var(--color-text);
}

h3 {
  font-size: var(--font-size-xl);
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text-secondary);
}

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

a:hover {
  color: var(--color-primary-dark);
  text-decoration: underline;
}

/* ============================================
   LAYOUT
   ============================================ */

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  margin-bottom: var(--spacing-2xl);
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--spacing-xl);
  gap: var(--spacing-lg);
  flex-wrap: wrap;
}

.section-header h2 {
  margin: 0;
}

/* ============================================
   HEADER
   ============================================ */

.header {
  background-color: var(--color-bg-secondary);
  border-bottom: 1px solid var(--color-border);
  padding: var(--spacing-lg) 0;
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: var(--shadow-sm);
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--spacing-xl);
}

.logo {
  font-size: var(--font-size-2xl);
  margin: 0;
  color: var(--color-primary);
  white-space: nowrap;
}

.header-nav {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
}

.auth-menu {
  display: flex;
  gap: var(--spacing-sm);
}

.auth-menu.hidden {
  display: none;
}

.user-menu {
  display: flex;
  gap: var(--spacing-sm);
}

.user-menu.hidden {
  display: none;
}

/* ============================================
   BUTTONS
   ============================================ */

.btn {
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  font-weight: 600;
  padding: var(--spacing-sm) var(--spacing-lg);
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all var(--transition-fast);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  white-space: nowrap;
}

.btn-primary {
  background-color: var(--color-primary);
  color: white;
  border: 2px solid transparent;
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-primary:active {
  transform: translateY(0);
}

.btn-secondary {
  background-color: var(--color-bg-tertiary);
  color: var(--color-text);
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background-color: var(--color-border);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn-ghost:hover {
  background-color: var(--color-primary-light);
}

.btn-icon {
  background: none;
  border: none;
  font-size: var(--font-size-xl);
  cursor: pointer;
  padding: var(--spacing-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.btn-icon:hover {
  background-color: var(--color-bg-tertiary);
}

.btn-sm {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

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

/* ============================================
   FORMS
   ============================================ */

.form-group {
  margin-bottom: var(--spacing-lg);
}

label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
  color: var(--color-text);
}

input,
select,
textarea {
  width: 100%;
  padding: var(--spacing-sm) var(--spacing-md);
  font-family: var(--font-body);
  font-size: var(--font-size-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-light);
}

textarea {
  resize: vertical;
  min-height: 100px;
}

.form-actions {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-xl);
  flex-wrap: wrap;
}

.form-actions .btn {
  flex: 1;
  min-width: 150px;
}

/* ============================================
   FILTERS & SELECT
   ============================================ */

.filters {
  display: flex;
  gap: var(--spacing-md);
  flex-wrap: wrap;
}

.filter-select {
  padding: var(--spacing-sm) var(--spacing-md);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background-color: var(--color-bg);
  color: var(--color-text);
  font-size: var(--font-size-base);
  cursor: pointer;
  min-width: 150px;
}

/* ============================================
   STATS TABLE
   ============================================ */

.stats-table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
}

.stats-table {
  width: 100%;
  border-collapse: collapse;
  background-color: var(--color-bg);
}

.stats-table thead {
  background-color: var(--color-bg-secondary);
  border-bottom: 2px solid var(--color-border);
}

.stats-table th {
  padding: var(--spacing-md);
  text-align: left;
  font-weight: 700;
  font-size: var(--font-size-sm);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: var(--color-text);
  white-space: nowrap;
}

.stats-table th.sortable {
  cursor: pointer;
  user-select: none;
  transition: background-color var(--transition-fast);
}

.stats-table th.sortable:hover {
  background-color: var(--color-bg-tertiary);
}

.stats-table th.sortable .sort-arrow {
  display: inline-block;
  margin-left: var(--spacing-xs);
  color: var(--color-primary);
  font-weight: 700;
}

.stats-table th.sorted {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.stats-table td {
  padding: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
  font-size: var(--font-size-base);
}

.stats-table tbody tr {
  transition: background-color var(--transition-fast);
}

.stats-table tbody tr:hover {
  background-color: var(--color-bg-tertiary);
}

.stats-table tbody tr:last-child td {
  border-bottom: none;
}

/* Rank column styling */
.stats-table td:first-child {
  font-weight: 600;
  color: var(--color-text);
}

/* Right-align numeric columns */
.stats-table th:not(:first-child),
.stats-table td:not(:first-child) {
  text-align: right;
}

/* ============================================
   PLAYER NAME BADGES
   ============================================ */

.player-name-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-size: var(--font-size-sm);
  font-weight: 600;
}

.player-name-badge-og {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.player-name-badge-guest {
  background-color: #fef3c7;
  color: #d97706;
}

/* ============================================
   STATS KEY/LEGEND
   ============================================ */

.stats-key {
  display: flex;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-lg);
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  font-size: var(--font-size-sm);
  flex-wrap: wrap;
}

.key-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.key-badge {
  display: inline-block;
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.key-badge-og {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
}

.key-badge-guest {
  background-color: #fef3c7;
  color: #d97706;
}

/* ============================================
   GAME DETAILS GRID
   ============================================ */

.games-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
  gap: var(--spacing-lg);
}

.game-date-group {
  margin-bottom: var(--spacing-2xl);
}

.game-group-date {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: var(--spacing-lg);
  padding-bottom: var(--spacing-md);
  border-bottom: 2px solid var(--color-border);
}

.game-group-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
}

.game-card {
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  transition: all var(--transition-fast);
  display: flex;
  flex-direction: column;
}

.game-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--color-primary);
}

.game-card-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  margin-bottom: var(--spacing-md);
  padding-bottom: var(--spacing-md);
  border-bottom: 1px solid var(--color-border);
}

.game-date {
  font-size: var(--font-size-lg);
  font-weight: 700;
  color: var(--color-primary);
}

.game-type {
  background-color: var(--color-primary-light);
  color: var(--color-primary);
  padding: var(--spacing-xs) var(--spacing-sm);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--font-size-sm);
}

.game-attendance {
  font-size: var(--font-size-sm);
  font-weight: 600;
  color: var(--color-text-secondary);
  white-space: nowrap;
}

.placements {
  list-style: none;
}

.placement-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
  border-bottom: 1px solid var(--color-border);
}

.placement-item:last-child {
  border-bottom: none;
}

.placement-rank {
  font-weight: 700;
  font-size: var(--font-size-lg);
  color: var(--color-primary);
  min-width: 30px;
  text-align: center;
}

.placement-name {
  flex: 1;
  margin-left: var(--spacing-md);
  font-weight: 600;
}

.placement-prize {
  font-weight: 700;
  color: var(--color-success);
  font-size: var(--font-size-lg);
}

/* Attendees Section */
.attendees-section {
  margin-top: var(--spacing-md);
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border);
}

.attendees-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding: var(--spacing-sm) var(--spacing-md);
  background-color: transparent;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  font-size: var(--font-size-sm);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.attendees-toggle:hover {
  background-color: var(--color-bg-tertiary);
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.attendees-toggle-icon {
  font-size: 0.75rem;
  transition: transform var(--transition-fast);
}

.attendees-list {
  margin-top: var(--spacing-md);
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: var(--spacing-md);
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-sm);
}

.attendees-list.hidden {
  display: none;
}

.attendee-badge {
  display: inline-block;
}

/* ============================================
   MODALS
   ============================================ */

.modal {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-lg);
}

.modal.hidden {
  display: none;
}

.modal-overlay {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
}

.modal-content {
  position: relative;
  background-color: var(--color-bg);
  border-radius: var(--radius-xl);
  max-width: 600px;
  width: 100%;
  max-height: 90vh;
  overflow-y: auto;
  box-shadow: var(--shadow-xl);
}

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-xl);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  background-color: var(--color-bg);
}

.modal-header h2 {
  margin: 0;
}

.modal-tabs {
  display: flex;
  border-bottom: 1px solid var(--color-border);
  background-color: var(--color-bg-secondary);
  overflow-x: auto;
}

.modal-tab {
  flex: 1;
  padding: var(--spacing-md) var(--spacing-lg);
  background: none;
  border: none;
  border-bottom: 3px solid transparent;
  cursor: pointer;
  font-weight: 600;
  color: var(--color-text-secondary);
  transition: all var(--transition-fast);
  white-space: nowrap;
  font-size: var(--font-size-sm);
}

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

.modal-tab.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
}

.modal-body {
  padding: var(--spacing-xl);
}

.modal-tab-content {
  display: none;
}

.modal-tab-content.active {
  display: block;
}

/* ============================================
   LOADING & SPINNER
   ============================================ */

.loading {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: var(--spacing-2xl);
  color: var(--color-text-secondary);
}

.loading.hidden {
  display: none;
}

.spinner {
  width: 40px;
  height: 40px;
  border: 3px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin-bottom: var(--spacing-md);
}

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

/* ============================================
   TOAST NOTIFICATIONS
   ============================================ */

.toast {
  position: fixed;
  bottom: var(--spacing-lg);
  right: var(--spacing-lg);
  background-color: var(--color-text);
  color: var(--color-bg);
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-lg);
  z-index: 2000;
  animation: slideUp 300ms ease-out;
  max-width: 400px;
  word-wrap: break-word;
}

.toast.hidden {
  display: none;
}

.toast.success {
  background-color: var(--color-success);
  color: white;
}

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

.toast.warning {
  background-color: var(--color-warning);
  color: white;
}

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

/* ============================================
   AUTH OVERLAY
   ============================================ */

.auth-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-accent) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 500;
}

.auth-overlay.hidden {
  display: none;
}

.auth-container {
  background-color: var(--color-bg);
  padding: var(--spacing-2xl);
  border-radius: var(--radius-xl);
  text-align: center;
  max-width: 400px;
  box-shadow: var(--shadow-xl);
}

.auth-container h2 {
  margin-bottom: var(--spacing-md);
}

.auth-container p {
  margin-bottom: var(--spacing-xl);
}

/* ============================================
   PLAYERS LIST
   ============================================ */

.players-list {
  display: grid;
  gap: var(--spacing-md);
}

.player-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-md);
  background-color: var(--color-bg-secondary);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
}

.player-info {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.player-name {
  font-weight: 700;
  color: var(--color-text);
}

.player-status {
  font-size: var(--font-size-sm);
  color: var(--color-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.player-actions {
  display: flex;
  gap: var(--spacing-sm);
}

.player-actions .btn {
  padding: var(--spacing-xs) var(--spacing-md);
  font-size: var(--font-size-sm);
}

/* ============================================
   PLACEMENT FORM
   ============================================ */

.placement-form-group {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: var(--spacing-md);
  padding: var(--spacing-md);
  background-color: var(--color-bg-tertiary);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  align-items: end;
}

.placement-form-group label {
  font-size: var(--font-size-sm);
  margin-bottom: var(--spacing-xs);
}

.placement-form-group input,
.placement-form-group select {
  margin: 0;
}

.placement-form-group .btn {
  padding: var(--spacing-sm) var(--spacing-md);
  width: 100%;
}

/* ============================================
   MAIN CONTENT
   ============================================ */

.main-content {
  padding: var(--spacing-2xl) 0;
  min-height: calc(100vh - 100px);
}

/* ============================================
   UTILITY CLASSES
   ============================================ */

.hidden {
  display: none !important;
}

.text-center {
  text-align: center;
}

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

.mt-lg {
  margin-top: var(--spacing-lg);
}

.mb-lg {
  margin-bottom: var(--spacing-lg);
}

/* ============================================
   SCROLL TO TOP BUTTON
   ============================================ */

.scroll-to-top {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background-color: var(--color-primary);
  color: white;
  border: none;
  font-size: var(--font-size-lg);
  font-weight: 700;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  transition: all var(--transition-fast);
  z-index: 999;
}

.scroll-to-top:hover {
  background-color: var(--color-primary-dark);
  transform: translateY(-4px);
  box-shadow: var(--shadow-xl);
}

.scroll-to-top:active {
  transform: translateY(-2px);
}

.scroll-to-top.hidden {
  display: none;
}

/* ============================================
   UPCOMING GAME SECTION
   ============================================ */

.upcoming-game-section {
  margin-bottom: var(--spacing-2xl);
}

.upcoming-game-card {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  box-shadow: var(--shadow-lg);
  color: white;
  overflow: hidden;
  position: relative;
}

.upcoming-game-card::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -50px;
  width: 300px;
  height: 300px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.upcoming-game-content {
  position: relative;
  z-index: 1;
}

.upcoming-game-header {
  margin-bottom: var(--spacing-lg);
  border-bottom: 2px solid rgba(255, 255, 255, 0.3);
  padding-bottom: var(--spacing-md);
}

.upcoming-game-header h3 {
  margin: 0;
  font-size: var(--font-size-2xl);
  color: white;
}

.upcoming-game-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
}

.game-info-row {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
}

.game-info-label {
  font-size: var(--font-size-sm);
  font-weight: 600;
  opacity: 0.95;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.game-info-value {
  font-size: var(--font-size-lg);
  font-weight: 500;
  word-break: break-word;
}

/* Empty state - no upcoming game */
#upcomingGameContainer:empty + .section {
  margin-top: 0;
}