/* Material Design-inspired CSS for EP Squash Website */

/* CSS Variables for Material Design Colors and Tokens */
:root {
  /* Primary Colors */
  --primary-color: #1976d2; /* Blue 700 */
  --primary-hover: #1565c0; /* Blue 800 */
  --primary-light: #42a5f5; /* Blue 400 */
  --primary-dark: #0d47a1; /* Blue 900 */

  /* Secondary Colors */
  --secondary-color: #4caf50; /* Green 500 */
  --secondary-hover: #388e3c; /* Green 700 */
  --secondary-light: #81c784; /* Green 300 */
  --secondary-dark: #2e7d32; /* Green 800 */

  /* Accent Colors */
  --accent-color: #ff9800; /* Orange 500 */
  --accent-hover: #f57c00; /* Orange 700 */

  /* Surface & Background */
  --background-color: #fafafa;
  --surface-color: #ffffff;
  --surface-variant: #f5f5f5;

  /* Text Colors */
  --text-primary: #212121; /* Grey 900 */
  --text-secondary: #757575; /* Grey 600 */
  --text-disabled: #bdbdbd; /* Grey 400 */
  --text-on-primary: #ffffff;

  /* State Colors */
  --error-color: #f44336; /* Red 500 */
  --warning-color: #ff9800; /* Orange 500 */
  --success-color: #4caf50; /* Green 500 */
  --info-color: #2196f3; /* Blue 500 */

  /* Divider & Outline */
  --divider-color: #e0e0e0; /* Grey 300 */
  --outline-color: #bdbdbd; /* Grey 400 */

  /* Elevation Shadows (Material Design) */
  --shadow-0: none;
  --shadow-1: 0 2px 1px -1px rgba(0, 0, 0, 0.2), 0 1px 1px 0 rgba(0, 0, 0, 0.14), 0 1px 3px 0 rgba(0, 0, 0, 0.12);
  --shadow-2: 0 3px 1px -2px rgba(0, 0, 0, 0.2), 0 2px 2px 0 rgba(0, 0, 0, 0.14), 0 1px 5px 0 rgba(0, 0, 0, 0.12);
  --shadow-3: 0 3px 3px -2px rgba(0, 0, 0, 0.2), 0 3px 4px 0 rgba(0, 0, 0, 0.14), 0 1px 8px 0 rgba(0, 0, 0, 0.12);
  --shadow-4: 0 2px 4px -1px rgba(0, 0, 0, 0.2), 0 4px 5px 0 rgba(0, 0, 0, 0.14), 0 1px 10px 0 rgba(0, 0, 0, 0.12);
  --shadow-6: 0 3px 5px -1px rgba(0, 0, 0, 0.2), 0 6px 10px 0 rgba(0, 0, 0, 0.14), 0 1px 18px 0 rgba(0, 0, 0, 0.12);
  --shadow-8: 0 5px 5px -3px rgba(0, 0, 0, 0.2), 0 8px 10px 1px rgba(0, 0, 0, 0.14), 0 3px 14px 2px rgba(0, 0, 0, 0.12);
  --shadow-16: 0 8px 10px -5px rgba(0, 0, 0, 0.2), 0 16px 24px 2px rgba(0, 0, 0, 0.14), 0 6px 30px 5px rgba(0, 0, 0, 0.12);
  --shadow-24: 0 11px 15px -7px rgba(0, 0, 0, 0.2), 0 24px 38px 3px rgba(0, 0, 0, 0.14), 0 9px 46px 8px rgba(0, 0, 0, 0.12);

  /* Legacy shadows for backward compatibility */
  --shadow: var(--shadow-2);
  --shadow-hover: var(--shadow-4);

  /* Spacing Scale (Material Design) */
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 20px;
  --space-6: 24px;
  --space-7: 28px;
  --space-8: 32px;
  --space-9: 36px;
  --space-10: 40px;

  /* Border Radius */
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --radius-full: 50px;

  /* Transitions */
  --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* Reset and Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Roboto', 'Helvetica', 'Arial', sans-serif;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--background-color);
}

h1, h2, h3, h4, h5, h6 {
  margin-bottom: 1rem;
  font-weight: 500;
}

p {
  margin-bottom: 1rem;
}

a {
  color: var(--primary-color);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

/* Header and Navigation */
header {
  background-color: var(--surface-color);
  box-shadow: var(--shadow-2);
  position: sticky;
  top: 0;
  z-index: 100;
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--space-4) var(--space-6);
  max-width: 1200px;
  margin: 0 auto;
}

.logo {
  font-size: 1.5rem;
  font-weight: 500;
  color: var(--primary-color);
  letter-spacing: 0.015em;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: var(--space-6);
  align-items: center;
}

.nav-links li a {
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.028em;
  transition: all var(--transition-fast);
  padding: var(--space-2) var(--space-3);
  border-radius: var(--radius-full);
  position: relative;
}

.nav-links li a:hover {
  background-color: rgba(25, 118, 210, 0.04);
  color: var(--primary-color);
}

/* MUI-inspired User Menu Items */
.nav-links li.user-menu {
  position: relative;
}

.nav-links li.user-menu a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-full);
  background: rgba(25, 118, 210, 0.08);
  color: var(--primary-color);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.028em;
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  min-height: 36px;
}

.nav-links li.user-menu a:hover {
  background: rgba(25, 118, 210, 0.12);
  color: var(--primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}

.nav-links li.user-menu a:focus {
  outline: none;
  background: rgba(25, 118, 210, 0.12);
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.2);
}

.nav-links li.user-menu.profile a::before {
  content: "👤";
  font-size: 1.125rem;
}

.nav-links li.user-menu.logout a::before {
  content: "🚪";
  font-size: 1.125rem;
}

.nav-links li.user-menu.admin a::before {
  content: "⚙️";
  font-size: 1.125rem;
}

/* Superuser Submenu */
.nav-links li.user-menu.superuser {
  position: relative;
}

.nav-links li.user-menu.superuser a::before {
  content: "👑";
  font-size: 1.125rem;
}

.superuser-submenu {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  background: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-8);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.95);
  transition: all var(--transition-normal);
  z-index: 1000;
  border: 1px solid var(--outline-color);
  overflow: hidden;
}

.superuser-submenu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.superuser-submenu li {
  list-style: none;
  border-bottom: 1px solid var(--divider-color);
}

.superuser-submenu li:last-child {
  border-bottom: none;
}

.superuser-submenu li a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.025em;
  transition: all var(--transition-fast);
  position: relative;
}

.superuser-submenu li a:hover {
  background-color: rgba(25, 118, 210, 0.04);
  color: var(--primary-color);
}

.superuser-submenu li a:active {
  background-color: rgba(25, 118, 210, 0.08);
}

/* Admin Submenu */
.nav-links li.user-menu.admin {
  position: relative;
}

.nav-links li.user-menu.admin a::before {
  content: "⚙️";
  font-size: 1.125rem;
}

.admin-submenu {
  position: absolute;
  top: calc(100% + var(--space-1));
  right: 0;
  background: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-8);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px) scale(0.95);
  transition: all var(--transition-normal);
  z-index: 1000;
  border: 1px solid var(--outline-color);
  overflow: hidden;
}

.admin-submenu.active {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}

.admin-submenu li {
  list-style: none;
  border-bottom: 1px solid var(--divider-color);
}

.admin-submenu li:last-child {
  border-bottom: none;
}

.admin-submenu li a {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  color: var(--text-primary);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 400;
  letter-spacing: 0.025em;
  transition: all var(--transition-fast);
  position: relative;
}

.admin-submenu li a:hover {
  background-color: rgba(25, 118, 210, 0.04);
  color: var(--primary-color);
}

.admin-submenu li a:active {
  background-color: rgba(25, 118, 210, 0.08);
}

.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--space-2);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.hamburger:hover {
  background-color: rgba(0, 0, 0, 0.04);
}

.hamburger span {
  width: 24px;
  height: 2px;
  background-color: var(--text-primary);
  margin: 3px 0;
  transition: all var(--transition-fast);
  border-radius: 1px;
}

.hamburger.active span:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 5px);
}

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

.hamburger.active span:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -5px);
}

/* Main Content */
main {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem;
}

/* Hero Section */
.hero {
  text-align: center;
  padding: 4rem 2rem;
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  border-radius: 8px;
  margin-bottom: 2rem;
  box-shadow: var(--shadow);
}

.hero h1 {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.hero p {
  font-size: 1.2rem;
  margin-bottom: 2rem;
}

.hero-stats {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 2rem;
}

.stat {
  text-align: center;
}

.stat h3 {
  font-size: 2rem;
  margin: 0;
}

.stat p {
  margin: 0.5rem 0;
  font-weight: 500;
}

/* MUI-inspired Form Components */
.form-group {
  margin-bottom: var(--space-4);
}

.form-group label {
  display: block;
  margin-bottom: var(--space-2);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--outline-color);
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-family: inherit;
  line-height: 1.5;
  color: var(--text-primary);
  background-color: var(--surface-color);
  transition: all var(--transition-fast);
  box-sizing: border-box;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary-color);
  box-shadow: 0 0 0 2px rgba(25, 118, 210, 0.2);
}

.form-group input:hover,
.form-group select:hover,
.form-group textarea:hover {
  border-color: var(--text-secondary);
}

.form-group input:disabled,
.form-group select:disabled,
.form-group textarea:disabled {
  background-color: rgba(0, 0, 0, 0.04);
  color: var(--text-disabled);
  cursor: not-allowed;
}

.form-group textarea {
  resize: vertical;
  min-height: 80px;
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' fill='none' viewBox='0 0 20 20'%3e%3cpath stroke='%236b7280' stroke-linecap='round' stroke-linejoin='round' stroke-width='1.5' d='m6 8 4 4 4-4'/%3e%3c/svg%3e");
  background-position: right var(--space-3) center;
  background-repeat: no-repeat;
  background-size: 1.5em 1.5em;
  padding-right: var(--space-8);
  appearance: none;
}

/* Form validation states */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
  border-color: var(--error-color);
}

.form-group.error input:focus,
.form-group.error select:focus,
.form-group.error textarea:focus {
  box-shadow: 0 0 0 2px rgba(244, 67, 54, 0.2);
}

.form-group.success input,
.form-group.success select,
.form-group.success textarea {
  border-color: var(--success-color);
}

.form-group.success input:focus,
.form-group.success select:focus,
.form-group.success textarea:focus {
  box-shadow: 0 0 0 2px rgba(76, 175, 80, 0.2);
}

/* Helper text */
.form-helper {
  margin-top: var(--space-1);
  font-size: 0.75rem;
  line-height: 1.25;
  color: var(--text-secondary);
}

.form-helper.error {
  color: var(--error-color);
}

.form-helper.success {
  color: var(--success-color);
}

/* MUI-inspired Card Components */
.card {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--divider-color);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  box-shadow: var(--shadow-3);
  transform: translateY(-2px);
}

.card-header {
  padding: var(--space-5) var(--space-6) var(--space-3);
  border-bottom: 1px solid var(--divider-color);
}

.card-title {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.0125em;
}

.card-subtitle {
  margin: var(--space-1) 0 0;
  font-size: 0.875rem;
  color: var(--text-secondary);
  letter-spacing: 0.025em;
}

.card-content {
  padding: var(--space-5) var(--space-6);
}

.card-actions {
  padding: var(--space-3) var(--space-6) var(--space-5);
  border-top: 1px solid var(--divider-color);
  display: flex;
  gap: var(--space-2);
  justify-content: flex-end;
}

/* Legacy feature styles for backward compatibility */
.feature {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--divider-color);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.feature:hover {
  box-shadow: var(--shadow-3);
  transform: translateY(-2px);
}

.feature h2 {
  color: var(--primary-color);
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
  font-weight: 500;
}

/* About and Contact Sections */
.about, .contact {
  text-align: center;
  padding: 2rem;
  background-color: var(--surface-color);
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 2rem;
}

.about h1, .contact h1 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

/* Events Section */
.events {
  margin-bottom: 2rem;
  text-align: center;
}

.events h2 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.event-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.event {
  background-color: var(--surface-color);
  padding: 2rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

.event:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}

.event h3 {
  color: var(--secondary-color);
  margin-bottom: 1rem;
}

.event p {
  margin-bottom: 0.5rem;
}

/* Footer */
footer {
  background-color: var(--text-primary);
  color: white;
  padding: 2rem 0 1rem;
  margin-top: 2rem;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.footer-section h3 {
  margin-bottom: 1rem;
  color: var(--accent-color);
}

.footer-section ul {
  list-style: none;
  padding: 0;
}

.footer-section ul li {
  margin-bottom: 0.5rem;
}

.footer-section ul li a {
  color: white;
  text-decoration: none;
}

.footer-section ul li a:hover {
  color: var(--accent-color);
}

footer p {
  text-align: center;
  margin-top: 2rem;
  border-top: 1px solid #555;
  padding-top: 1rem;
}

/* Rankings Info */
.ranking-info {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--divider-color);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
}

.ranking-info h2 {
  color: var(--primary-color);
  margin-bottom: var(--space-4);
  font-size: 1.25rem;
  font-weight: 500;
}

.ranking-info ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.ranking-info li {
  margin-bottom: var(--space-2);
  padding-left: var(--space-5);
  position: relative;
  color: var(--text-secondary);
  line-height: 1.5;
}

.ranking-info li::before {
  content: "•";
  color: var(--secondary-color);
  font-weight: bold;
  position: absolute;
  left: 0;
  font-size: 1.25rem;
  line-height: 1;
}
.ranking-card {
  background-color: var(--surface-color);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-1);
  border: 1px solid var(--divider-color);
  padding: var(--space-6);
  margin-bottom: var(--space-6);
  overflow-x: auto; /* For mobile responsiveness */
}

.ranking-table {
  width: 100%;
  border-collapse: collapse;
  margin: 0;
}

.ranking-table th,
.ranking-table td {
  padding: var(--space-3) var(--space-4);
  text-align: left;
  border-bottom: 1px solid var(--divider-color);
  font-size: 0.875rem;
  line-height: 1.5;
}

.ranking-table th {
  background-color: rgba(25, 118, 210, 0.04);
  color: var(--text-primary);
  font-weight: 500;
  text-transform: uppercase;
  font-size: 0.8125rem;
  letter-spacing: 0.5px;
  border-bottom: 2px solid var(--primary-color);
}

.ranking-table tbody tr:nth-child(even) {
  background-color: rgba(0, 0, 0, 0.02);
}

.ranking-table tbody tr:hover {
  background-color: rgba(25, 118, 210, 0.02);
  transition: background-color var(--transition-fast);
}

.ranking-table td:first-child {
  font-weight: 600;
  color: var(--primary-color);
  width: 60px;
}

.ranking-table td:nth-child(2) {
  font-weight: 500;
}

.ranking-table td:nth-child(3) {
  font-weight: 700;
  color: var(--primary-color);
  font-size: 1.1em;
}

/* Enhanced Rankings Table for Performance View */
.ranking-table th:nth-child(7),
.ranking-table td:nth-child(7) {
  text-align: center;
  font-weight: 600;
  color: var(--secondary-color);
}

.ranking-table th:nth-child(8),
.ranking-table td:nth-child(8) {
  font-size: 0.8125rem;
  color: var(--error-color);
  font-weight: 500;
}

/* Movement Indicators */
.movement-indicator {
  text-align: center;
  font-size: 1rem;
  width: 40px;
  padding: var(--space-2);
}

.movement-indicator.up {
  color: var(--success-color);
  font-weight: bold;
}

.movement-indicator.down {
  color: var(--error-color);
  font-weight: bold;
}

.movement-indicator.same {
  color: var(--text-secondary);
}

.movement-indicator.new {
  color: var(--info-color);
  font-weight: bold;
}

/* News Section */
.news {
  margin-bottom: 2rem;
  text-align: center;
}

.news h2 {
  color: var(--primary-color);
  margin-bottom: 1rem;
}

.news-item {
  background-color: var(--surface-color);
  padding: 1.5rem;
  border-radius: 8px;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  transition: box-shadow 0.3s ease;
}

.news-item:hover {
  box-shadow: var(--shadow-hover);
}

.news-item h3 {
  color: var(--secondary-color);
  margin-bottom: 0.5rem;
}

/* Mobile Navigation */
@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--surface-color);
    box-shadow: var(--shadow-8);
    border-radius: 0 0 var(--radius-md) var(--radius-md);
    padding: var(--space-4);
    flex-direction: column;
    gap: var(--space-2);
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-normal);
    z-index: 999;
    border: 1px solid var(--divider-color);
    border-top: none;
  }

  .nav-links.active {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links li a {
    width: 100%;
    text-align: left;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: 1rem;
  }

  .nav-links li.user-menu a {
    justify-content: flex-start;
    margin-bottom: var(--space-1);
  }

  .hamburger {
    display: flex;
  }

  .hamburger.active span:nth-child(1) {
    transform: rotate(-45deg) translate(-5px, 5px);
  }

  .hamburger.active span:nth-child(2) {
    opacity: 0;
  }

  .hamburger.active span:nth-child(3) {
    transform: rotate(45deg) translate(-5px, -5px);
  }

  /* Mobile submenu adjustments */
  .superuser-submenu,
  .admin-submenu {
    position: static;
    box-shadow: none;
    border: none;
    border-radius: 0;
    opacity: 1;
    visibility: visible;
    transform: none;
    background: rgba(0, 0, 0, 0.04);
    margin-top: var(--space-1);
    margin-left: var(--space-4);
  }

  .superuser-submenu li,
  .admin-submenu li {
    border-bottom: none;
  }

  .superuser-submenu li a,
  .admin-submenu li a {
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
  }

  /* Mobile content adjustments */
  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .hero-stats {
    flex-direction: column;
    gap: var(--space-4);
  }

  main {
    padding: var(--space-4);
  }

  nav {
    padding: var(--space-4);
  }

  .ranking-card {
    padding: var(--space-4);
  }

  .ranking-table th,
  .ranking-table td {
    padding: var(--space-2) var(--space-3);
    font-size: 0.875rem;
  }

  .news-item {
    padding: var(--space-4);
  }

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

  .footer-content {
    grid-template-columns: 1fr;
    padding: 0 var(--space-4);
  }

  /* Mobile form adjustments */
  .form-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-3) !important;
  }

  .match-form-grid {
    grid-template-columns: 1fr !important;
    gap: var(--space-3) !important;
  }
}