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

:root {
  --primary: #0066cc;
  --primary-dark: #0052a3;
  --accent: #16D95F;
  --accent-dark: #12b34e;
  --success: #28a745;
  --danger: #dc3545;
  --danger-dark: #c82333;
  --text: #1a1a1a;
  --text-light: #666;
  --bg: #f8f9fa;
  --bg-white: #ffffff;
  --card-bg: #ffffff;
  --border: #e0e0e0;
  --shadow: rgba(0, 0, 0, 0.1);
  --shadow-hover: rgba(0, 0, 0, 0.15);
}

[data-theme="dark"] {
  --primary: #3d9eff;
  --primary-dark: #1a7edb;
  --accent: #16D95F;
  --accent-dark: #12b34e;
  --success: #4ade80;
  --danger: #f87171;
  --danger-dark: #dc2626;
  --text: #e5e7eb;
  --text-light: #9ca3af;
  --bg: #0f172a;
  --bg-white: #1e293b;
  --card-bg: #1e293b;
  --border: #334155;
  --shadow: rgba(0, 0, 0, 0.3);
  --shadow-hover: rgba(0, 0, 0, 0.5);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  letter-spacing: -0.011em;
}

/* === Navigation === */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
}

[data-theme="dark"] .navbar {
  background: rgba(30, 41, 59, 0.95);
}

.nav-container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  gap: 3rem;
  align-items: center;
}

.nav-brand {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.nav-brand:hover {
  color: var(--primary-dark);
}

.nav-logo {
  height: 54px;
  width: auto;
}

.nav-menu {
  display: flex;
  flex: 1;
  list-style: none;
  gap: 2rem;
  align-items: center;
}

.nav-spacer {
  margin-left: auto;
}

.nav-link {
  color: var(--text);
  text-decoration: none;
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: 6px;
  transition: all 0.2s;
}

.nav-link:hover {
  background: var(--bg);
  color: var(--primary);
}

.nav-link-primary {
  background: var(--primary);
  color: white;
}

.nav-link-primary:hover {
  background: var(--primary-dark);
  color: white;
}

.nav-link-accent {
  background: var(--accent);
  color: white;
}

.nav-link-accent:hover {
  background: var(--accent-dark);
  color: white;
}

/* User Dropdown */
.user-dropdown {
  position: relative;
}

.user-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: var(--bg);
  border: 2px solid var(--border);
  border-radius: 25px;
  cursor: pointer;
  font-weight: 600;
  color: var(--text);
  transition: all 0.2s;
  font-size: 0.875rem;
}

.user-dropdown-toggle:hover {
  background: var(--card-bg);
  border-color: var(--primary);
}

.user-avatar-small {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid var(--border);
}

.user-avatar-small-placeholder {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.875rem;
  font-weight: bold;
  border: 2px solid var(--border);
}

.dropdown-arrow {
  font-size: 0.625rem;
  transition: transform 0.2s;
}

.user-dropdown-toggle:hover .dropdown-arrow {
  transform: translateY(2px);
}

.user-dropdown-menu {
  position: absolute;
  top: calc(100% + 0.5rem);
  right: 0;
  background: var(--card-bg);
  border: 2px solid var(--border);
  border-radius: 8px;
  box-shadow: 0 4px 12px var(--shadow);
  min-width: 200px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.2s;
  z-index: 1000;
}

.user-dropdown-menu.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-item {
  display: block;
  padding: 0.75rem 1rem;
  color: var(--text);
  text-decoration: none;
  transition: all 0.2s;
  font-size: 0.875rem;
  border: none;
  width: 100%;
  text-align: left;
  cursor: pointer;
}

.dropdown-item:hover {
  background: var(--bg);
  color: var(--primary);
}

.dropdown-button {
  background: none;
  font-family: inherit;
}

.dropdown-divider {
  height: 1px;
  background: var(--border);
  margin: 0.25rem 0;
}

.theme-icon-dropdown {
  margin-right: 0.5rem;
}

.theme-toggle:hover {
  background: var(--primary);
  border-color: var(--primary);
  transform: scale(1.1);
}

.theme-toggle:hover .theme-icon {
  filter: brightness(2);
}

/* === Main Content === */
.main-content {
  flex: 1;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
  padding: 3rem 2rem;
}

/* === Footer === */
.footer {
  background: var(--bg-white);
  border-top: 2px solid var(--border);
  padding: 2rem;
  text-align: center;
  color: var(--text-light);
  margin-top: auto;
}

.footer-content {
  max-width: 1400px;
  margin: 0 auto;
}

.footer-links {
  margin-top: 1rem;
}

.footer-links a {
  color: var(--text-light);
  text-decoration: none;
  margin: 0 0.5rem;
}

.footer-links a:hover {
  color: var(--primary);
}

.api-attribution {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.api-attribution a img:hover {
  opacity: 1 !important;
}

/* === Page Header === */
.page-header {
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.page-header h1 {
  font-size: 2.75rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 0.5rem;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.page-header p {
  font-size: 1.125rem;
  color: var(--text-light);
}

/* === Cards === */
.card {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.04);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.card:hover {
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.04);
  transform: translateY(-2px);
  border-color: rgba(0, 102, 204, 0.1);
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 1rem;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--text);
  margin: 0;
  letter-spacing: -0.025em;
}

.card-body {
  color: var(--text-light);
}

.card-footer {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* === Grid Layouts === */
.grid {
  display: grid;
  gap: 2rem;
}

.grid-2 {
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
}

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.875rem 1.75rem;
  font-size: 0.9375rem;
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s ease;
  letter-spacing: 0.01em;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.08);
}

.btn:active {
  transform: translateY(1px);
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 102, 204, 0.25);
}

.btn-primary:hover {
  box-shadow: 0 4px 12px rgba(0, 102, 204, 0.35);
  transform: translateY(-1px);
}

.btn-accent {
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
  color: white;
  box-shadow: 0 2px 8px rgba(0, 204, 102, 0.25);
}

.btn-accent:hover {
  box-shadow: 0 4px 12px rgba(0, 204, 102, 0.35);
  transform: translateY(-1px);
}

.btn-secondary {
  background: #6c757d;
  color: white;
}

.btn-secondary:hover {
  background: #5a6268;
}

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

.btn-danger:hover {
  background: var(--danger-dark);
}

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

.btn-outline:hover {
  background: var(--primary);
  color: white;
}

.btn:disabled {
  background: #ccc;
  cursor: not-allowed;
  opacity: 0.6;
}

.btn-group {
  display: flex;
  gap: 1rem;
}

/* === Badges === */
.badge {
  display: inline-block;
  padding: 0.25rem 0.75rem;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: 20px;
  color: white;
}

.badge-primary {
  background: var(--primary);
}

.badge-accent {
  background: var(--accent);
}

.badge-danger {
  background: var(--danger);
}

.badge-warning {
  background: #ffc107;
  color: var(--text);
}

.badge-secondary {
  background: #6c757d;
}

/* === Status Badges === */
.status-upcoming {
  background: #007bff;
}

.status-voting {
  background: var(--accent);
}

.status-closed {
  background: #ffc107;
  color: var(--text);
}

.status-completed {
  background: #6c757d;
}

/* === Forms === */
.form-group {
  margin-bottom: 1.5rem;
}

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

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.75rem;
  font-size: 1rem;
  border: 2px solid var(--border);
  border-radius: 8px;
  transition: all 0.2s;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

.form-error {
  color: var(--danger);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

.form-help {
  color: var(--text-light);
  font-size: 0.875rem;
  margin-top: 0.25rem;
}

/* === Alerts === */
.alert {
  padding: 1rem 1.5rem;
  border-radius: 8px;
  margin-bottom: 1.5rem;
  border-left: 4px solid;
}

.alert-info {
  background: #e3f2fd;
  border-color: var(--primary);
  color: #004085;
}

.alert-success {
  background: #d4edda;
  border-color: var(--accent);
  color: #155724;
}

.alert-warning {
  background: #fff3cd;
  border-color: #ffc107;
  color: #856404;
}

.alert-danger {
  background: #f8d7da;
  border-color: var(--danger);
  color: #721c24;
}

/* === Tables === */
.table {
  width: 100%;
  border-collapse: collapse;
  background: var(--bg-white);
  border-radius: 12px;
  overflow: hidden;
  box-shadow: 0 2px 4px var(--shadow);
}

.table th {
  background: var(--bg);
  padding: 1rem;
  text-align: left;
  font-weight: 600;
  color: var(--text);
  border-bottom: 2px solid var(--border);
}

.table td {
  padding: 1rem;
  border-bottom: 1px solid var(--border);
}

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

.table tr:hover {
  background: var(--bg);
}

/* === Progress Bar === */
.progress {
  width: 100%;
  height: 24px;
  background: var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: 600;
  font-size: 0.875rem;
  transition: width 0.3s;
}

/* === Loading Spinner === */
.spinner {
  border: 4px solid var(--border);
  border-top: 4px solid var(--primary);
  border-radius: 50%;
  width: 40px;
  height: 40px;
  animation: spin 1s linear infinite;
  margin: 2rem auto;
}

@keyframes spin {
  0% { transform: rotate(0deg); }
  100% { transform: rotate(360deg); }
}

/* === Hamburger (hidden on desktop) === */
.hamburger-btn {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
  color: var(--text);
  cursor: pointer;
  padding: 0.5rem;
  margin-left: auto;
}

.nav-overlay {
  display: none;
}

.nav-close-btn {
  display: none;
}

/* === Responsive === */
@media (max-width: 768px) {
  html, body {
    overflow-x: hidden;
  }

  /* Remove backdrop-filter so position:fixed children use viewport, not navbar */
  .navbar {
    backdrop-filter: none;
    -webkit-backdrop-filter: none;
    background: var(--bg-white);
  }

  /* Hamburger menu */
  .hamburger-btn {
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-close-btn {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: none;
    border: none;
    font-size: 1.25rem;
    color: var(--text-light);
    cursor: pointer;
    padding: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
  }

  .nav-container {
    padding: 0.75rem 1rem;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 180px;
    flex: none;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-white);
    border-left: 1px solid var(--border);
    z-index: 200;
    transform: translateX(100%);
    visibility: hidden;
    transition: transform 0.3s ease, visibility 0.3s ease;
    padding: 3rem 0.75rem 1.5rem;
    overflow-y: auto;
    gap: 0;
    font-size: 0.875rem;
    list-style: none;
    margin: 0;
  }

  .nav-menu.active {
    transform: translateX(0);
    visibility: visible;
  }

  .nav-overlay.active {
    display: block;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 199;
  }

  .nav-spacer {
    display: none;
  }

  .nav-menu li {
    list-style: none;
    border-bottom: 1px solid var(--border);
  }

  .nav-menu li:last-child {
    border-bottom: none;
  }

  .nav-link {
    display: block;
    padding: 0.625rem 0.75rem;
    border-radius: 6px;
    font-size: 0.875rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  .nav-link:hover {
    background: var(--bg);
  }

  .nav-link-accent {
    margin-top: 0.5rem;
  }

  /* User section in sidebar */
  .user-dropdown {
    width: 100%;
    margin-top: 0.5rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border);
  }

  .user-dropdown-toggle {
    width: 100%;
    justify-content: flex-start;
    padding: 0.5rem 0.75rem;
    font-size: 0.8125rem;
    border: none;
    background: none;
    border-radius: 6px;
  }

  .user-dropdown-toggle:hover {
    border: none;
  }

  .dropdown-arrow {
    display: none;
  }

  .user-dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    border-radius: 0;
    margin-top: 0;
    padding: 0;
    min-width: unset;
  }

  .dropdown-divider {
    display: none;
  }

  .dropdown-item {
    padding: 0.625rem 0.75rem;
    border-radius: 6px;
    font-size: 0.8125rem;
  }

  /* Layout & Typography */
  .main-content {
    padding: 1rem !important;
  }

  .page-header {
    flex-direction: column;
  }

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

  .card {
    padding: 1rem;
    border-radius: 10px;
  }

  .card-title {
    font-size: 1.125rem;
  }

  .card-header {
    flex-direction: column;
    gap: 0.5rem;
  }

  /* Grids */
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }

  /* Buttons & Forms */
  .btn {
    padding: 0.625rem 1.25rem;
    font-size: 0.875rem;
  }

  .btn-group {
    flex-wrap: wrap;
  }

  .form-input,
  .form-select,
  .form-textarea {
    font-size: 16px; /* prevents iOS zoom on focus */
  }

  /* Footer */
  .footer {
    padding: 1.5rem 1rem;
  }
}

/* Extra small screens */
@media (max-width: 480px) {
  .page-header h1 {
    font-size: 1.25rem !important;
  }

  .nav-logo {
    height: 36px;
  }

  .card {
    padding: 0.75rem;
  }
}

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

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

.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; }

.hidden {
  display: none;
}