/* =============================================
   TRENDMINT.IO — Global Stylesheet
   ============================================= */

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

:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #17171f;
  --border: #1e1e2e;
  --border2: #2a2a3e;
  --text: #e8e8f0;
  --text2: #9898b8;
  --text3: #6060808;
  --accent: #7c3aed;
  --accent2: #6d28d9;
  --accent-glow: rgba(124, 58, 237, 0.35);
  --green: #10b981;
  --yellow: #f59e0b;
  --red: #ef4444;
  --blue: #3b82f6;
  --radius: 12px;
  --radius-lg: 18px;
  --shadow: 0 4px 24px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 48px rgba(0,0,0,0.7);
  --transition: 0.18s ease;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}

/* ===== NAV ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--border);
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(12px);
}
.nav-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* ===== LOGO ===== */
.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.3px;
}
.logo-icon { font-size: 1.3rem; }
.logo-dot { color: var(--accent); }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 9px 18px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  text-decoration: none;
  white-space: nowrap;
}
.btn:disabled { opacity: 0.5; cursor: not-allowed; }
.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover:not(:disabled) {
  background: var(--accent2);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px var(--accent-glow);
}
.btn-ghost {
  background: transparent;
  color: var(--text2);
  border: 1px solid var(--border2);
}
.btn-ghost:hover:not(:disabled) {
  background: var(--bg3);
  color: var(--text);
  border-color: var(--accent);
}
.btn-full { width: 100%; }
.btn-sm { padding: 6px 12px; font-size: 0.8rem; }
.btn-outline-accent {
  background: transparent;
  color: var(--accent);
  border: 1px solid var(--accent);
}
.btn-outline-accent:hover:not(:disabled) {
  background: var(--accent);
  color: #fff;
}
.btn-picked {
  background: rgba(16,185,129,0.15);
  color: var(--green);
  border: 1px solid rgba(16,185,129,0.4);
}
.btn-picked:hover:not(:disabled) {
  background: rgba(16,185,129,0.25);
}

.nav-actions { display: flex; align-items: center; gap: 10px; }
.nav-user { display: flex; align-items: center; gap: 12px; }
.nav-username {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text2);
}

/* ===== HERO ===== */
.hero {
  padding: 72px 24px 56px;
  text-align: center;
  background: radial-gradient(ellipse 80% 50% at 50% 0%, rgba(124,58,237,0.12) 0%, transparent 70%);
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 780px; margin: 0 auto; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(124,58,237,0.15);
  border: 1px solid rgba(124,58,237,0.3);
  color: #a78bfa;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 0.8rem;
  font-weight: 500;
  margin-bottom: 24px;
  letter-spacing: 0.2px;
}
.hero-badge::before { content: '●'; font-size: 0.5rem; color: var(--green); animation: pulse 2s infinite; }

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -1.5px;
  margin-bottom: 18px;
  color: var(--text);
}
.gradient-text {
  background: linear-gradient(135deg, #a78bfa 0%, #7c3aed 40%, #4f46e5 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text2);
  max-width: 560px;
  margin: 0 auto 36px;
  line-height: 1.7;
}

.hero-stats {
  display: inline-flex;
  align-items: center;
  gap: 0;
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px 32px;
  gap: 32px;
}
.stat { display: flex; flex-direction: column; align-items: center; gap: 2px; }
.stat-num {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -0.5px;
}
.stat-label { font-size: 0.75rem; color: var(--text2); text-transform: uppercase; letter-spacing: 0.5px; }
.stat-divider { width: 1px; height: 36px; background: var(--border2); }

/* ===== FILTERS ===== */
.filters-wrap {
  max-width: 1200px;
  margin: 0 auto;
  padding: 28px 24px 0;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.filters {
  display: flex;
  gap: 8px;
  white-space: nowrap;
  padding-bottom: 4px;
}
.filter-btn {
  padding: 8px 16px;
  border-radius: 999px;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  cursor: pointer;
  border: 1px solid var(--border2);
  background: transparent;
  color: var(--text2);
  transition: all var(--transition);
  white-space: nowrap;
}
.filter-btn:hover {
  border-color: var(--accent);
  color: var(--text);
  background: rgba(124,58,237,0.08);
}
.filter-btn.active {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

/* ===== MAIN ===== */
.main { max-width: 1200px; margin: 0 auto; padding: 28px 24px 64px; }
.ideas-section { margin-top: 24px; }

/* ===== IDEAS GRID ===== */
.ideas-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
  gap: 20px;
}

/* ===== IDEA CARD ===== */
.idea-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 24px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
  gap: 14px;
  position: relative;
  overflow: hidden;
}
.idea-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent 0%, rgba(124,58,237,0.04) 100%);
  opacity: 0;
  transition: opacity var(--transition);
}
.idea-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(124,58,237,0.18);
}
.idea-card:hover::before { opacity: 1; }

.card-topic {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}
.card-topic-icon { font-size: 1rem; }

.card-title {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.35;
  letter-spacing: -0.2px;
}

.card-desc {
  font-size: 0.875rem;
  color: var(--text2);
  line-height: 1.65;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 6px;
  font-size: 0.73rem;
  font-weight: 500;
  border: 1px solid transparent;
}
.badge-easy { background: rgba(16,185,129,0.12); color: var(--green); border-color: rgba(16,185,129,0.25); }
.badge-medium { background: rgba(245,158,11,0.12); color: var(--yellow); border-color: rgba(245,158,11,0.25); }
.badge-hard { background: rgba(239,68,68,0.12); color: var(--red); border-color: rgba(239,68,68,0.25); }
.badge-market { background: rgba(59,130,246,0.1); color: #93c5fd; border-color: rgba(59,130,246,0.2); }

.card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: auto;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.picks-count {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  color: var(--text2);
  font-weight: 500;
}
.picks-icon { font-size: 1rem; }
.picks-count.has-picks { color: var(--accent); }
.picks-count.has-picks .picks-icon { filter: none; }

.pick-btn {
  padding: 7px 16px;
  font-size: 0.82rem;
}

/* ===== TREND SIGNAL ===== */
.card-signal {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  background: rgba(124,58,237,0.08);
  border: 1px solid rgba(124,58,237,0.2);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 0.8rem;
  color: #c4b5fd;
  line-height: 1.5;
}
.signal-icon { flex-shrink: 0; margin-top: 1px; }

/* ===== LOADING / EMPTY ===== */
.loading-state {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding: 80px 0;
  color: var(--text2);
  font-size: 0.9rem;
}
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border2);
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 0;
  color: var(--text2);
}
.empty-state h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text); }

/* ===== MODAL ===== */
/* Auth modal always on top of idea detail modal */
#modalOverlay { z-index: 500; }

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  animation: fadeIn 0.15s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.modal {
  background: var(--bg2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-lg);
  padding: 40px;
  width: 100%;
  max-width: 420px;
  position: relative;
  box-shadow: var(--shadow-lg);
  animation: slideUp 0.2s ease;
}
.modal-wide { max-width: 620px; }
@keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }

.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border2);
  background: transparent;
  color: var(--text2);
  cursor: pointer;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.modal-close:hover { background: var(--bg3); color: var(--text); border-color: var(--accent); }

.modal-header { text-align: center; margin-bottom: 28px; }
.modal-icon { font-size: 2rem; margin-bottom: 12px; }
.modal-title { font-size: 1.4rem; font-weight: 700; margin-bottom: 6px; letter-spacing: -0.4px; }
.modal-sub { font-size: 0.875rem; color: var(--text2); }

/* ===== FORMS ===== */
.form-group { margin-bottom: 16px; }
.form-label { display: block; font-size: 0.82rem; font-weight: 500; color: var(--text2); margin-bottom: 6px; }
.form-input {
  width: 100%;
  padding: 11px 14px;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 8px;
  font-family: inherit;
  font-size: 0.9rem;
  color: var(--text);
  transition: border-color var(--transition);
  outline: none;
}
.form-input::placeholder { color: #505070; }
.form-input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px var(--accent-glow); }
.form-input:invalid:not(:placeholder-shown) { border-color: var(--red); }

.form-error {
  background: rgba(239,68,68,0.12);
  border: 1px solid rgba(239,68,68,0.3);
  color: #fca5a5;
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 0.83rem;
  margin-bottom: 14px;
}

.modal-switch {
  text-align: center;
  margin-top: 18px;
  font-size: 0.85rem;
  color: var(--text2);
}
.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  cursor: pointer;
  font-size: inherit;
  font-family: inherit;
  font-weight: 500;
  padding: 0;
  text-decoration: underline;
  text-underline-offset: 2px;
}
.link-btn:hover { color: #a78bfa; }

/* ===== POST AUTH PROMPT ===== */
.post-auth-prompt { text-align: center; padding: 20px 0; }
.post-auth-idea {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 20px;
  font-weight: 600;
  font-size: 1rem;
  color: var(--text);
}
.post-auth-msg { color: var(--text2); font-size: 0.9rem; }

/* ===== IDEA DETAIL MODAL ===== */
.idea-detail-header { margin-bottom: 24px; }
.idea-detail-topic {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text2);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 10px;
}
.idea-detail-title {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -0.5px;
  margin-bottom: 12px;
}
.idea-detail-desc {
  font-size: 0.95rem;
  color: var(--text2);
  line-height: 1.75;
  margin-bottom: 20px;
}
.idea-detail-signal {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: rgba(124,58,237,0.1);
  border: 1px solid rgba(124,58,237,0.25);
  border-radius: var(--radius);
  padding: 14px 18px;
  margin-bottom: 24px;
}
.idea-detail-signal .signal-label {
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  color: #a78bfa;
  margin-bottom: 3px;
}
.idea-detail-signal .signal-text {
  font-size: 0.875rem;
  color: #c4b5fd;
  line-height: 1.5;
}
.idea-detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 28px;
}
.idea-detail-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}
.idea-detail-picks {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--accent);
}

/* ===== UTILITY ===== */
.hidden { display: none !important; }

/* ===== FOOTER ===== */
.footer {
  border-top: 1px solid var(--border);
  background: var(--bg2);
}
.footer-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-copy { font-size: 0.8rem; color: var(--text2); }

/* ===== RESPONSIVE ===== */
@media (max-width: 640px) {
  .hero { padding: 48px 20px 40px; }
  .hero-stats { padding: 16px 20px; gap: 20px; }
  .stat-num { font-size: 1.3rem; }
  .ideas-grid { grid-template-columns: 1fr; }
  .modal { padding: 28px 20px; }
  .idea-detail-footer { flex-direction: column; align-items: stretch; }
  .footer-inner { flex-direction: column; align-items: flex-start; }
}