/* Hanover Chess Society - Shared Mobile-First Styles */

:root {
  --bg: #f8f9fa;
  --card: #ffffff;
  --ink: #1a1a1a;
  --muted: #6c757d;
  --accent: #2e7d32;
  --accent-light: #4caf50;
  --accent2: #8b5e34;
  --shadow: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 24px rgba(0,0,0,0.12);
  --radius: 12px;
  --transition: 0.2s ease;
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a:hover {
  text-decoration: underline;
}

/* Navigation - Mobile First */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.05);
}

.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 700;
  font-size: 1.1rem;
  text-decoration: none;
  color: var(--ink);
}

.brand-icon {
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.brand-text {
  display: none;
}

.brand-text-mobile {
  font-size: 0.95rem;
}

.brand-subtitle {
  display: block;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--muted);
  margin-top: -2px;
}

/* Hamburger Menu */
.menu-toggle {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: rgba(0, 0, 0, 0.05);
}

.menu-toggle span {
  width: 24px;
  height: 3px;
  background: var(--ink);
  border-radius: 3px;
  transition: all var(--transition);
}

.menu-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(7px, 7px);
}

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

.menu-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

.nav-links {
  position: fixed;
  top: 73px;
  left: 0;
  right: 0;
  background: white;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  padding: 1rem;
  display: none;
  flex-direction: column;
  gap: 0.5rem;
}

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

.nav-links a {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.95rem;
  transition: all var(--transition);
}

.nav-links a:hover {
  background: rgba(46, 125, 50, 0.08);
  text-decoration: none;
}

.nav-links a.active-link {
  background: rgba(46, 125, 50, 0.12);
  color: var(--accent);
}

/* Banner */
.banner {
  background: linear-gradient(135deg, #dc2626, #b91c1c);
  color: white;
  padding: 0.875rem 1rem;
  text-align: center;
  font-weight: 600;
  font-size: 0.9rem;
  display: none;
  box-shadow: 0 2px 8px rgba(220, 38, 38, 0.3);
}

.banner.show {
  display: block;
}

.banner-icon {
  margin-right: 0.5rem;
}

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

/* Cards */
.card {
  background: var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.25rem;
  margin-bottom: 1rem;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: all var(--transition);
  gap: 0.5rem;
  min-height: 44px; /* Touch-friendly */
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--accent-light));
  color: white;
  box-shadow: 0 4px 12px rgba(46, 125, 50, 0.25);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(46, 125, 50, 0.35);
  text-decoration: none;
}

.btn-secondary {
  background: white;
  color: var(--ink);
  border: 2px solid rgba(0, 0, 0, 0.1);
}

.btn-secondary:hover {
  border-color: var(--accent);
  background: rgba(46, 125, 50, 0.05);
  text-decoration: none;
}

.btn-full {
  width: 100%;
}

/* Form Elements */
.form-group {
  margin-bottom: 1rem;
}

.form-label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid rgba(0, 0, 0, 0.1);
  border-radius: var(--radius);
  font-size: 1rem;
  font-family: inherit;
  transition: all var(--transition);
  min-height: 44px; /* Touch-friendly */
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(46, 125, 50, 0.1);
}

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

/* Utility Classes */
.text-center {
  text-align: center;
}

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

.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mt-3 { margin-top: 1.5rem; }
.mt-4 { margin-top: 2rem; }

.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }
.mb-3 { margin-bottom: 1.5rem; }
.mb-4 { margin-bottom: 2rem; }

.p-1 { padding: 0.5rem; }
.p-2 { padding: 1rem; }
.p-3 { padding: 1.5rem; }
.p-4 { padding: 2rem; }

/* Loading State */
.loading {
  text-align: center;
  padding: 2rem;
  color: var(--muted);
}

.error {
  color: #dc2626;
  padding: 1rem;
  background: rgba(220, 38, 38, 0.1);
  border-radius: var(--radius);
  margin-bottom: 1rem;
}

/* Footer */
.footer {
  text-align: center;
  padding: 2rem 1rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid rgba(0, 0, 0, 0.08);
  margin-top: 3rem;
}

/* Tablet and up (768px+) */
@media (min-width: 768px) {
  .container {
    padding: 1.5rem;
  }

  .card {
    padding: 1.5rem;
  }

  .brand-text {
    display: block;
  }

  .brand-text-mobile {
    display: none;
  }

  .menu-toggle {
    display: none;
  }

  .nav-links {
    position: static;
    flex-direction: row;
    display: flex !important;
    padding: 0;
    background: none;
    border: none;
    box-shadow: none;
    gap: 0.25rem;
  }

  .nav-links a {
    padding: 0.5rem 0.875rem;
    font-size: 0.9rem;
  }
}

/* Tables */
.table-responsive {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 1rem;
}

th, td {
  padding: 0.75rem;
  text-align: left;
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

th {
  font-weight: 700;
  font-size: 0.85rem;
  color: var(--muted);
  background: rgba(46, 125, 50, 0.05);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

tbody tr {
  transition: background var(--transition);
}

tbody tr:hover {
  background: rgba(46, 125, 50, 0.03);
  cursor: pointer;
}

/* Tabs */
.tabs {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

.tab {
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius);
  background: white;
  border: 2px solid rgba(0, 0, 0, 0.08);
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: all var(--transition);
  white-space: nowrap;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.tab:hover {
  border-color: var(--accent);
  background: rgba(46, 125, 50, 0.05);
}

.tab.active {
  background: var(--accent);
  color: white;
  border-color: var(--accent);
}

/* Badge */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.badge-success {
  background: rgba(46, 125, 50, 0.15);
  color: var(--accent);
}

.badge-danger {
  background: rgba(220, 38, 38, 0.15);
  color: #dc2626;
}

.badge-warning {
  background: rgba(245, 158, 11, 0.15);
  color: #f59e0b;
}

.badge-info {
  background: rgba(59, 130, 246, 0.15);
  color: #3b82f6;
}

/* Desktop (1024px+) */
@media (min-width: 1024px) {
  .container {
    padding: 2rem;
  }

  .card {
    padding: 2rem;
  }
}