:root {
  --violet: #6a6eff;
  --orchid: #ff7ad9;
  --aqua: #8fe7ff;
  --sun: #ffd8a6;
  --ink: #1c2040;
  --muted: #5c6380;
  --card: #ffffff;
  --card-muted: #f7f7ff;
  --border: #e3e6f8;
  --radius: 20px;
  --shadow-soft: 0 25px 60px rgba(34, 37, 71, 0.08);
  --shadow-hard: 0 30px 60px rgba(34, 37, 71, 0.18);
  --bg-gradient: linear-gradient(180deg, #fffdfc 0%, #f6f2ff 45%, #eef6ff 100%);
}

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

body {
  margin: 0;
  font-family: 'Inter', 'PingFang SC', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--ink);
  background: var(--bg-gradient);
  min-height: 100vh;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  position: relative;
  overflow-x: hidden;
}

body::before,
body::after {
  content: '';
  position: fixed;
  width: 680px;
  height: 680px;
  border-radius: 50%;
  z-index: 0;
  filter: blur(12px);
  opacity: 0.65;
  pointer-events: none;
}

body::before {
  top: -220px;
  left: -160px;
  background: radial-gradient(circle, rgba(255, 122, 217, 0.45), rgba(246, 237, 255, 0));
}

body::after {
  bottom: -260px;
  right: -160px;
  background: radial-gradient(circle, rgba(143, 231, 255, 0.55), rgba(238, 246, 255, 0));
}

img {
  max-width: 100%;
}

a {
  text-decoration: none;
  color: inherit;
}

.hidden {
  display: none !important;
}

.container {
  width: min(1160px, 90vw);
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  background: rgba(252, 253, 255, 0.9);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(227, 230, 245, 0.8);
  z-index: 10;
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 0;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
}

.nav-links {
  display: flex;
  gap: 1.5rem;
  font-weight: 500;
  color: var(--muted);
}

.btn {
  border: none;
  padding: 0.75rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn.primary {
  background: linear-gradient(135deg, var(--violet), var(--orchid));
  color: #fff;
  box-shadow: var(--shadow-hard);
}

.btn.secondary {
  background: var(--card-muted);
  color: var(--ink);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-soft);
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink);
}

main {
  padding-top: 2rem;
  position: relative;
  z-index: 1;
}

main::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg width='220' height='220' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23dfe3ff' stroke-width='0.5' stroke-opacity='0.35'%3E%3Cpath d='M0 110h220M110 0v220'/%3E%3Ccircle cx='110' cy='110' r='35'/%3E%3C/g%3E%3C/svg%3E");
  opacity: 0.35;
  z-index: -1;
}

.section {
  padding: 4rem 0;
}

.section-heading {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.section-heading h2 {
  font-size: 2.2rem;
  margin: 0;
}

.hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2.5rem;
  padding: 4rem 0 5rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 4vw, 3.8rem);
  margin-bottom: 1.25rem;
}

.hero-content .subtitle {
  color: var(--muted);
  max-width: 42ch;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.25em;
  font-size: 0.85rem;
  color: var(--muted);
  margin: 0 0 1rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
}

.hero-card {
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.96), rgba(255, 122, 217, 0.08));
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: var(--shadow-hard);
  border: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.hero-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 20% 20%, rgba(143, 231, 255, 0.3), transparent 55%);
  pointer-events: none;
}

.hero-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  color: var(--muted);
}

.hero-card ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.hero-card li {
  border-bottom: 1px dashed rgba(92, 100, 128, 0.25);
  padding-bottom: 0.75rem;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 1rem;
}

.category-card {
  border-radius: var(--radius);
  padding: 1.5rem;
  background: linear-gradient(145deg, #ffffff, #f7f5ff);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  color: var(--ink);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
  text-align: left;
}

.category-card strong {
  display: block;
  margin-bottom: 0.35rem;
}

.category-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.category-card.active {
  box-shadow: 0 18px 35px rgba(106, 110, 255, 0.25);
  border-color: rgba(106, 110, 255, 0.45);
}

.category-card:hover {
  transform: translateY(-3px);
}

.groups-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.group-card {
  background: linear-gradient(160deg, rgba(255, 255, 255, 0.98), rgba(140, 231, 255, 0.08));
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 1rem;
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.group-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 216, 166, 0.25), transparent 55%);
  pointer-events: none;
}

.group-card > * {
  position: relative;
  z-index: 1;
}

.group-card h3 {
  margin: 0 0 0.5rem;
}

.group-card .description {
  color: var(--muted);
  margin: 0;
}

.card-header {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  height: 72px;
  border-radius: 50%;
  font-size: 0.85rem;
  color: var(--violet);
  border: 1px solid rgba(143, 231, 255, 0.45);
  background: radial-gradient(circle, rgba(143, 231, 255, 0.2), rgba(255, 255, 255, 0));
}

.card-meta {
  display: flex;
  justify-content: space-between;
  color: var(--muted);
  font-size: 0.95rem;
}

.badge {
  color: var(--sun);
  font-weight: 600;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.25rem;
  margin-bottom: 1rem;
  color: var(--muted);
}

.group-detail .detail-card {
  max-width: 780px;
  margin-bottom: 2rem;
}

.detail-header h1 {
  margin: 0.5rem 0 1rem;
}

.detail-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  color: var(--muted);
  font-weight: 500;
  margin-bottom: 1rem;
}

.detail-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
}

.owner-note {
  background: var(--card-muted);
  border-radius: var(--radius);
  padding: 1.25rem;
  border: 1px solid var(--border);
  margin-bottom: 1.5rem;
}

.owner-note h4 {
  margin: 0 0 0.35rem;
}

.empty-state {
  background: var(--card);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px dashed var(--border);
  margin-bottom: 2rem;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.filters select,
.filters input {
  min-width: 180px;
}

.category-pills {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.category-pill {
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.35rem 1.2rem;
  background: var(--card);
  color: var(--ink);
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.2s ease, border 0.2s ease, box-shadow 0.2s ease;
}

.category-pill.active {
  border-color: rgba(106, 110, 255, 0.6);
  box-shadow: 0 15px 30px rgba(106, 110, 255, 0.15);
  transform: translateY(-2px);
}

.cta {
  background: linear-gradient(120deg, rgba(255, 245, 234, 0.9), rgba(238, 244, 255, 0.95));
  padding: 3rem 0;
  border-radius: var(--radius);
  margin: 2rem 0;
  border: 1px solid rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}

.cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 30% 40%, rgba(255, 122, 217, 0.25), transparent 50%);
  pointer-events: none;
}

.cta-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1.25rem;
}

.submit-section {
  background: transparent;
}

.submit-form {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
  align-items: start;
}

.submit-form label {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-weight: 500;
}

.form-field-wide {
  grid-column: 1 / -1;
}

.form-actions {
  grid-column: 1 / -1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  text-align: center;
}

.form-actions .btn {
  align-self: center;
}

.form-actions .form-status {
  width: 100%;
}

.review-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
}

.review-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.review-card li {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 0.85rem 1rem;
  background: #fff;
}

.review-card li strong {
  font-weight: 600;
}

input,
select,
textarea {
  border-radius: 14px;
  border: 1px solid var(--border);
  padding: 0.85rem 1rem;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--ink);
  box-shadow: inset 0 1px 3px rgba(27, 31, 59, 0.05);
}

textarea {
  resize: vertical;
}

.toggle {
  position: relative;
  gap: 1rem;
  flex-direction: row;
  align-items: center;
}

.toggle input {
  display: none;
}

.toggle-ui {
  position: relative;
  width: 48px;
  height: 26px;
  background: #d8dcec;
  border-radius: 999px;
  transition: background 0.2s ease;
}

.toggle-ui::after {
  content: '';
  position: absolute;
  width: 22px;
  height: 22px;
  background: #fff;
  border-radius: 50%;
  top: 2px;
  left: 2px;
  transition: transform 0.2s ease;
  box-shadow: 0 4px 10px rgba(27, 31, 59, 0.1);
}

.toggle input:checked + .toggle-ui {
  background: var(--violet);
}

.toggle input:checked + .toggle-ui::after {
  transform: translateX(22px);
}

.password-field.hidden {
  display: none;
}

.form-status {
  margin: 0;
  font-size: 0.95rem;
  color: var(--muted);
}

.site-footer {
  padding: 3rem 0 2rem;
  background: #fff;
  color: var(--ink);
  margin-top: 4rem;
  border-top: 1px solid var(--border);
}

.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 2rem;
}

.footer-grid a {
  color: var(--muted);
  display: block;
  margin-bottom: 0.5rem;
}

.legal {
  text-align: center;
  margin-top: 2rem;
  color: var(--muted);
}

@media (max-width: 768px) {
  .nav-links {
    display: none;
  }

  .hero-actions,
  .cta-inner {
    flex-direction: column;
    align-items: stretch;
  }

  .submit-form {
    grid-template-columns: 1fr;
  }

  .form-field-wide {
    grid-column: 1 / -1;
  }

  .form-actions {
    align-items: center;
  }
}