:root {
  --primary: #4f46e5;
  --primary-light: #6366f1;
  --primary-dark: #4338ca;
  --success: #10b981;
  --danger: #ef4444;
  --warning: #f59e0b;
  --bg: #f8fafc;
  --surface: #ffffff;
  --surface-elevated: #f1f5f9;
  --border: #e2e8f0;
  --text: #0f172a;
  --text-muted: #64748b;
  --text-light: #94a3b8;
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-md: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 20px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.header {
  background: linear-gradient(135deg, var(--primary) 0%, #7c3aed 100%);
  color: white;
  padding: 64px 0 48px;
  position: relative;
  overflow: hidden;
}

.header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 50%, rgba(255,255,255,0.15) 0%, transparent 50%);
  pointer-events: none;
}

.header .container { position: relative; z-index: 1; }

.header h1 {
  font-size: 3rem;
  font-weight: 800;
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.header p {
  font-size: 1.15rem;
  opacity: 0.9;
  max-width: 600px;
  line-height: 1.7;
}

.header-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 20px;
  color: rgba(255,255,255,0.85);
  text-decoration: none;
  font-weight: 500;
  transition: var(--transition);
}

.header-link:hover { color: #fff; }

.main { padding: 32px 0 64px; }

.main-grid {
  display: grid;
  grid-template-columns: 320px 1fr;
  gap: 32px;
  align-items: start;
}

@media (max-width: 900px) {
  .main-grid { grid-template-columns: 1fr; }
}

.card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.card:hover { box-shadow: var(--shadow-md); }

.card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: 20px;
  color: var(--text);
}

.idea-form { display: flex; flex-direction: column; gap: 16px; }

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-family: inherit;
  color: var(--text);
  background: var(--surface);
  transition: var(--transition);
}

.form-control:hover { border-color: var(--text-light); }

.form-control:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

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

.form-hint {
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-light) 0%, var(--primary) 100%);
  color: white;
  box-shadow: 0 4px 14px rgba(79, 70, 229, 0.35);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(79, 70, 229, 0.45);
}

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

.toolbar {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
  margin-bottom: 20px;
}

.search-box {
  flex: 1;
  min-width: 200px;
  position: relative;
}

.search-box::before {
  content: '🔍';
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.5;
  font-size: 0.9rem;
}

.search-input {
  width: 100%;
  padding: 10px 14px 10px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
}

.search-input:focus {
  outline: none;
  border-color: var(--primary-light);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.filter-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 4px;
}

.chip {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.chip:hover {
  border-color: var(--primary-light);
  color: var(--primary);
}

.chip.active {
  background: var(--primary);
  color: white;
  border-color: var(--primary);
  box-shadow: var(--shadow);
}

.sort-select {
  padding: 10px 14px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-family: inherit;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
}

.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

@media (max-width: 640px) {
  .ideas-grid { grid-template-columns: 1fr; }
}

.idea-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.idea-card.top {
  border: 2px solid var(--warning);
  background: linear-gradient(180deg, #fffbeb 0%, var(--surface) 100%);
}

.idea-card.done {
  opacity: 0.85;
  background: var(--surface-elevated);
}

.idea-card-image {
  width: 100%;
  height: 180px;
  object-fit: cover;
  background: var(--surface-elevated);
  border-bottom: 1px solid var(--border);
}

.idea-card-image[src=''],
.idea-card-image:not([src]) { display: none; }

.idea-card-body {
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex: 1;
}

.idea-card-header {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.idea-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  flex: 1;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-cat {
  background: #e0e7ff;
  color: #3730a3;
}

.badge-top {
  background: #fef3c7;
  color: #92400e;
}

.badge-progress-taken {
  background: #ffedd5;
  color: #9a3412;
}

.badge-progress-done {
  background: #d1fae5;
  color: #065f46;
}

.idea-card-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  line-height: 1.6;
  white-space: pre-wrap;
}

.idea-card-meta {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-top: auto;
}

.idea-card-footer {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 8px;
}

.vote-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.vote-btn:hover { transform: scale(1.05); }

.vote-btn.like:hover, .vote-btn.like.voted {
  background: #d1fae5;
  border-color: var(--success);
  color: #065f46;
}

.vote-btn.nice:hover, .vote-btn.nice.voted {
  background: #fef3c7;
  border-color: var(--warning);
  color: #92400e;
}

.vote-btn.dislike:hover, .vote-btn.dislike.voted {
  background: #fee2e2;
  border-color: var(--danger);
  color: #991b1b;
}

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

.vote-btn.voted { cursor: default; }

.vote-stats {
  width: 100%;
  margin-top: 8px;
}

.stat-pcts {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.stat-bar {
  display: flex;
  height: 8px;
  border-radius: 999px;
  overflow: hidden;
  background: var(--surface-elevated);
}

.stat-seg { height: 100%; }
.stat-seg.like { background: var(--success); }
.stat-seg.nice { background: var(--warning); }
.stat-seg.dislike { background: var(--danger); }

.forum-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  margin-top: 4px;
}
.forum-link:hover { text-decoration: underline; }

.score {
  margin-right: auto;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary);
  padding: 6px 10px;
  background: #eef2ff;
  border-radius: var(--radius-sm);
}

.idea-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.take-btn, .done-btn {
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  border: none;
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
}

.take-btn {
  background: #e0e7ff;
  color: #3730a3;
}

.take-btn:hover {
  background: #c7d2fe;
  transform: translateY(-1px);
}

.done-btn {
  background: #d1fae5;
  color: #065f46;
}

.done-btn:hover {
  background: #a7f3d0;
  transform: translateY(-1px);
}

.review-section { margin-top: 32px; }

.review-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}

.review-card {
  opacity: 0.8;
  background: #fff1f2;
  border: 1px solid #fecdd3;
}

.empty-state {
  text-align: center;
  padding: 48px 24px;
  color: var(--text-muted);
}

.empty-state-icon {
  font-size: 3rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

.empty-state-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.skeleton {
  background: linear-gradient(90deg, var(--surface-elevated) 25%, #e2e8f0 50%, var(--surface-elevated) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-sm);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

.admin-login {
  max-width: 400px;
  margin: 48px auto;
}

.admin-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.admin-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow);
}

.admin-card-title {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.admin-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 12px;
  margin-bottom: 12px;
}

.admin-actions {
  display: flex;
  gap: 8px;
  margin-top: 12px;
}

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

.btn-save:hover {
  background: #059669;
  transform: translateY(-1px);
}

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

.btn-delete:hover {
  background: #dc2626;
  transform: translateY(-1px);
}

.toast {
  position: fixed;
  bottom: 24px;
  left: 24px;
  padding: 14px 20px;
  border-radius: var(--radius);
  background: var(--text);
  color: white;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  z-index: 1000;
  opacity: 0;
  transform: translateY(20px);
  transition: var(--transition);
}

.toast.show {
  opacity: 1;
  transform: translateY(0);
}

.hidden { display: none !important; }

.footer {
  text-align: center;
  padding: 32px;
  color: var(--text-light);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}