:root {
  color-scheme: light dark;
  --bg: #0b0f1a;
  --bg-soft: #111827;
  --text: #e2e8f0;
  --text-muted: #94a3b8;
  --glass: rgba(15, 23, 42, 0.72);
  --glass-strong: rgba(15, 23, 42, 0.9);
  --border: rgba(148, 163, 184, 0.18);
  --accent: #6366f1;
  --accent-soft: rgba(99, 102, 241, 0.18);
  --glow: 0 20px 60px rgba(79, 70, 229, 0.3);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

body.light {
  --bg: #f5f7fb;
  --bg-soft: #ffffff;
  --text: #0f172a;
  --text-muted: #475569;
  --glass: rgba(255, 255, 255, 0.8);
  --glass-strong: rgba(255, 255, 255, 0.95);
  --border: rgba(15, 23, 42, 0.1);
  --glow: 0 20px 60px rgba(99, 102, 241, 0.12);
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
}

body {
  background: radial-gradient(circle at 10% 10%, rgba(99, 102, 241, 0.2), transparent 40%),
    radial-gradient(circle at 80% 0%, rgba(236, 72, 153, 0.2), transparent 45%),
    var(--bg);
  color: var(--text);
  min-height: 100vh;
}

a {
  color: inherit;
}

.app-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 24px clamp(20px, 6vw, 80px);
  background: var(--glass);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 16px rgba(99, 102, 241, 0.7);
}

.brand h1 {
  font-size: 18px;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.brand p {
  font-size: 12px;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-links a {
  text-decoration: none;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.nav-cta {
  padding: 10px 16px;
  border-radius: 999px;
  background: linear-gradient(120deg, #6366f1, #7c3aed);
  color: #ffffff;
  box-shadow: var(--glow);
}

.ghost-button {
  border: 1px solid var(--border);
  background: transparent;
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  cursor: pointer;
}

.content {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 56px;
  padding: 40px clamp(20px, 6vw, 80px) 90px;
}

.section {
  display: grid;
  gap: 24px;
}

.hero {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.2), rgba(15, 23, 42, 0.4));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: clamp(28px, 4vw, 60px);
  display: grid;
  gap: 20px;
  box-shadow: var(--glow);
}

.hero h2 {
  font-size: clamp(30px, 4vw, 48px);
  max-width: 680px;
}

.hero p {
  max-width: 640px;
  color: var(--text-muted);
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.primary-button {
  background: linear-gradient(120deg, #6366f1, #8b5cf6);
  color: #fff;
  border: none;
  border-radius: 999px;
  padding: 12px 22px;
  cursor: pointer;
  box-shadow: var(--glow);
}

.secondary-button {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 12px 22px;
  cursor: pointer;
}

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}

.card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: grid;
  gap: 12px;
  backdrop-filter: blur(12px);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

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

.card img {
  width: 100%;
  border-radius: var(--radius-md);
  aspect-ratio: 9 / 16;
  object-fit: cover;
}

.card h3 {
  font-size: 18px;
}

.card p {
  color: var(--text-muted);
  font-size: 13px;
  line-height: 1.5;
}

.badge {
  display: inline-flex;
  gap: 6px;
  align-items: center;
  font-size: 11px;
  padding: 6px 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--text);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.filters input {
  flex: 1 1 240px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
}

.filter-pill {
  border: 1px solid var(--border);
  background: transparent;
  padding: 8px 14px;
  border-radius: 999px;
  color: var(--text);
  cursor: pointer;
}

.filter-pill.active {
  background: var(--accent-soft);
  border-color: transparent;
}

.masonry {
  column-gap: 20px;
  column-count: 4;
}

.masonry-item {
  break-inside: avoid;
  margin-bottom: 20px;
}

.profile {
  display: grid;
  gap: 24px;
}

.profile-header {
  background: linear-gradient(135deg, rgba(99, 102, 241, 0.3), rgba(15, 23, 42, 0.8));
  border-radius: var(--radius-lg);
  padding: 24px;
  border: 1px solid var(--border);
  display: grid;
  gap: 18px;
}

.profile-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  color: var(--text-muted);
}

.profile-actions {
  display: flex;
  gap: 12px;
}

.stats {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.stat {
  background: var(--glass);
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
}

.rail {
  display: flex;
  gap: 16px;
  overflow-x: auto;
  padding-bottom: 8px;
}

.rail-card {
  min-width: 220px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 16px;
  display: grid;
  gap: 10px;
}

.footer {
  padding: 32px clamp(20px, 6vw, 80px);
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  background: var(--glass);
  backdrop-filter: blur(14px);
}

.footer-links {
  display: flex;
  gap: 18px;
  align-items: center;
}

.footer a {
  text-decoration: none;
  font-size: 14px;
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(8, 11, 20, 0.82);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 20;
}

.modal.show {
  display: flex;
}

.modal-card {
  background: var(--glass-strong);
  border-radius: var(--radius-lg);
  padding: 32px;
  max-width: 720px;
  display: grid;
  gap: 18px;
  border: 1px solid var(--border);
  box-shadow: var(--glow);
}

.modal-body p {
  color: var(--text-muted);
  line-height: 1.6;
}

.modal-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.ghost-link {
  text-decoration: none;
  color: var(--text);
  border: 1px solid var(--border);
  padding: 10px 16px;
  border-radius: 999px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  padding: 14px 18px;
  background: var(--glass-strong);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  box-shadow: var(--glow);
  opacity: 0;
  transform: translateY(20px);
  transition: all 0.3s ease;
  pointer-events: none;
  z-index: 30;
}

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

.form-card {
  max-width: 480px;
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  display: grid;
  gap: 16px;
}

.form-card label {
  font-size: 13px;
  color: var(--text-muted);
}

.form-card input {
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
}

.notice {
  font-size: 13px;
  color: var(--text-muted);
}

@media (max-width: 1200px) {
  .masonry {
    column-count: 3;
  }
}

@media (max-width: 900px) {
  .topbar {
    flex-direction: column;
    gap: 18px;
    align-items: flex-start;
  }

  .nav-links {
    flex-wrap: wrap;
  }

  .masonry {
    column-count: 2;
  }
}

@media (max-width: 640px) {
  .masonry {
    column-count: 1;
  }

  .footer {
    flex-direction: column;
  }
}