:root {
  --bg: #0a0a0f;
  --bg-elevated: #12121a;
  --bg-card: #1a1a26;
  --fg: #e8e6e3;
  --fg-muted: #8a8693;
  --accent: #6ee7b7;
  --accent-warm: #f59e42;
  --accent-glow: rgba(110, 231, 183, 0.12);
  --border: rgba(255,255,255,0.06);
  --radius: 16px;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'DM Sans', sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* === HERO === */
.hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 80px 24px 60px;
  max-width: 900px;
  margin: 0 auto;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -200px;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, rgba(110,231,183,0.06) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(110,231,183,0.2);
  padding: 8px 18px;
  border-radius: 100px;
  margin-bottom: 32px;
  width: fit-content;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 7vw, 4.8rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  margin-bottom: 28px;
  color: #fff;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--fg-muted);
  max-width: 560px;
  line-height: 1.7;
  margin-bottom: 56px;
}

.hero-stats {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}

.stat-number {
  display: block;
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--fg-muted);
  margin-top: 4px;
}

.stat-divider {
  width: 1px;
  height: 48px;
  background: var(--border);
}

/* === CONCEPT === */
.concept {
  padding: 120px 24px;
  max-width: 1100px;
  margin: 0 auto;
}

.concept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.concept-text h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 20px;
}

.concept-text p {
  color: var(--fg-muted);
  font-size: 1.05rem;
  line-height: 1.75;
}

.concept-cards {
  display: flex;
  gap: 20px;
  justify-content: center;
}

.profile-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  width: 180px;
  transition: transform 0.3s ease;
}

.profile-card:hover {
  transform: translateY(-4px);
}

.card-offset {
  margin-top: 40px;
}

.card-silhouette {
  position: relative;
  margin-bottom: 16px;
}

.silhouette-body {
  width: 100%;
  height: 160px;
  background: linear-gradient(135deg, #2a2a3a 0%, #1e1e2e 100%);
  border-radius: 12px;
  position: relative;
  overflow: hidden;
}

.silhouette-body::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 60%;
  height: 70%;
  background: rgba(255,255,255,0.03);
  border-radius: 30% 30% 0 0;
}

.silhouette-body.alt {
  background: linear-gradient(135deg, #2a2a3e 0%, #1a1a2e 100%);
}

.card-badge-credential {
  position: absolute;
  bottom: -10px;
  right: 8px;
  font-family: var(--font-display);
  font-size: 12px;
  font-weight: 700;
  background: var(--accent);
  color: var(--bg);
  padding: 4px 12px;
  border-radius: 100px;
}

.card-info {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.card-specialty {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg);
}

.card-shift {
  font-size: 0.78rem;
  color: var(--fg-muted);
}

/* === HOW === */
.how {
  padding: 120px 24px;
  max-width: 900px;
  margin: 0 auto;
}

.how h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 64px;
}

.steps {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px 64px;
}

.step {
  position: relative;
}

.step-number {
  font-family: var(--font-display);
  font-size: 3rem;
  font-weight: 700;
  color: rgba(110,231,183,0.12);
  line-height: 1;
  margin-bottom: 12px;
}

.step h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}

.step p {
  color: var(--fg-muted);
  font-size: 0.95rem;
  line-height: 1.65;
}

/* === CREDENTIALS === */
.credentials {
  padding: 120px 24px;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.credentials h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 16px;
}

.credentials-sub {
  color: var(--fg-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 56px;
}

.badge-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}

.badge-item {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  background: var(--accent-glow);
  border: 1px solid rgba(110,231,183,0.15);
  padding: 10px 22px;
  border-radius: 100px;
  transition: all 0.25s ease;
}

.badge-item:hover {
  background: rgba(110,231,183,0.2);
  border-color: rgba(110,231,183,0.35);
  transform: scale(1.05);
}

/* === CLOSING === */
.closing {
  padding: 140px 24px;
  text-align: center;
  position: relative;
}

.closing::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  background: radial-gradient(circle, rgba(110,231,183,0.04) 0%, transparent 60%);
  pointer-events: none;
}

.closing-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
  margin: 0 auto;
}

.closing h2 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4.5vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  color: #fff;
  margin-bottom: 16px;
}

.closing p {
  font-size: 1.2rem;
  color: var(--fg-muted);
  margin-bottom: 40px;
}

.closing-tagline {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--accent);
  letter-spacing: 0.02em;
}

/* === FOOTER === */
.site-footer {
  padding: 48px 24px;
  border-top: 1px solid var(--border);
}

.footer-inner {
  max-width: 900px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer-brand {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--fg);
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--fg-muted);
}

/* === RESPONSIVE === */
@media (max-width: 768px) {
  .concept-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .concept-cards {
    justify-content: flex-start;
  }

  .steps {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-stats {
    gap: 24px;
  }

  .stat-divider {
    display: none;
  }

  .footer-inner {
    flex-direction: column;
    gap: 12px;
    text-align: center;
  }

  .hero {
    min-height: auto;
    padding-top: 100px;
  }
}

/* === BUTTONS === */
.btn-primary {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--bg);
  background: var(--accent);
  padding: 14px 32px;
  border-radius: 100px;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.2s ease;
  letter-spacing: 0.01em;
}
.btn-primary:hover { opacity: 0.88; transform: translateY(-1px); }

.btn-ghost {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--fg);
  background: transparent;
  padding: 14px 32px;
  border-radius: 100px;
  text-decoration: none;
  border: 1px solid var(--border);
  cursor: pointer;
  transition: border-color 0.2s ease;
}
.btn-ghost:hover { border-color: rgba(255,255,255,0.2); }

.hero-cta {
  display: flex;
  gap: 16px;
  align-items: center;
  margin-bottom: 56px;
  flex-wrap: wrap;
}

.closing-actions {
  margin-top: 40px;
}

/* === APP NAV === */
.app-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10,10,15,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav-brand {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--fg);
  text-decoration: none;
}
.nav-brand span { color: var(--accent); }
.nav-links { display: flex; gap: 8px; align-items: center; }
.nav-link {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 8px;
  transition: color 0.2s ease, background 0.2s ease;
}
.nav-link:hover, .nav-link.active { color: var(--fg); background: rgba(255,255,255,0.05); }

/* === APP PAGES === */
.app-page {
  min-height: 100vh;
  padding: 80px 24px 48px;
  max-width: 960px;
  margin: 0 auto;
}

/* === AUTH FORMS === */
.auth-wrap {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 80px 24px;
}
.auth-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px;
  width: 100%;
  max-width: 440px;
}
.auth-card h1 {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.auth-card .auth-sub {
  color: var(--fg-muted);
  font-size: 0.95rem;
  margin-bottom: 32px;
}
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 8px;
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  color: var(--fg);
  font-family: var(--font-body);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease;
  appearance: none;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: rgba(110,231,183,0.4);
}
.form-textarea { resize: vertical; min-height: 100px; }
.form-hint {
  font-size: 0.8rem;
  color: var(--fg-muted);
  margin-top: 6px;
}
.error-msg {
  background: rgba(239,68,68,0.1);
  border: 1px solid rgba(239,68,68,0.25);
  color: #fca5a5;
  padding: 12px 16px;
  border-radius: 10px;
  font-size: 0.9rem;
  margin-bottom: 20px;
}
.auth-switch {
  text-align: center;
  margin-top: 24px;
  font-size: 0.9rem;
  color: var(--fg-muted);
}
.auth-switch a { color: var(--accent); text-decoration: none; font-weight: 600; }
.btn-full {
  width: 100%;
  display: block;
  text-align: center;
  padding: 14px 24px;
}

/* === PROFILE EDIT === */
.page-title {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.page-sub { color: var(--fg-muted); margin-bottom: 40px; }
.form-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  margin-bottom: 24px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }
.photo-upload-zone {
  border: 2px dashed var(--border);
  border-radius: 12px;
  padding: 40px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s ease;
  position: relative;
}
.photo-upload-zone:hover { border-color: rgba(110,231,183,0.35); }
.photo-upload-zone input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer;
}
.upload-icon { font-size: 2.5rem; margin-bottom: 12px; }
.upload-text { font-size: 0.9rem; color: var(--fg-muted); }
.photo-preview { width: 100%; max-height: 240px; object-fit: cover; border-radius: 8px; margin-top: 12px; display: none; }
.upload-note {
  background: var(--accent-glow);
  border: 1px solid rgba(110,231,183,0.15);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: 0.85rem;
  color: var(--accent);
  margin-bottom: 24px;
}

/* === BROWSE === */
.browse-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 32px;
  flex-wrap: wrap;
  gap: 16px;
}
.browse-title { font-family: var(--font-display); font-size: 1.8rem; font-weight: 700; color: #fff; }
.filter-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 32px;
  align-items: center;
}
.filter-bar .form-select { width: auto; min-width: 140px; }
.filter-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--fg-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  align-self: center;
}
.profiles-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 20px;
}
.browse-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease;
  position: relative;
}
.browse-card:hover { transform: translateY(-4px); border-color: rgba(255,255,255,0.1); }
.browse-card-photo {
  width: 100%;
  aspect-ratio: 3/4;
  object-fit: cover;
  background: var(--bg-elevated);
}
.browse-card-photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #1e1e2e 0%, #2a2a3a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
}
.browse-card-body { padding: 16px; }
.browse-card-cred {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--bg);
  background: var(--accent);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 8px;
}
.browse-card-name {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}
.browse-card-detail { font-size: 0.82rem; color: var(--fg-muted); }
.browse-card-verified {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.78rem;
  color: var(--accent);
  font-weight: 600;
}
.browse-card-actions {
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  display: flex;
  gap: 8px;
}
.btn-like {
  flex: 1;
  padding: 10px;
  background: var(--accent-glow);
  border: 1px solid rgba(110,231,183,0.2);
  color: var(--accent);
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
}
.btn-like:hover { background: rgba(110,231,183,0.2); }
.btn-like.liked { background: rgba(110,231,183,0.25); border-color: var(--accent); }
.btn-view {
  padding: 10px 14px;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--fg-muted);
  border-radius: 8px;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.2s ease;
}
.btn-view:hover { border-color: rgba(255,255,255,0.15); color: var(--fg); }
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--fg-muted);
}
.empty-state h3 {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--fg);
  margin-bottom: 12px;
}
.pagination { display: flex; gap: 8px; margin-top: 40px; align-items: center; }
.page-btn {
  padding: 8px 18px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--fg-muted);
  border-radius: 8px;
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  transition: all 0.2s ease;
}
.page-btn:hover, .page-btn.active { border-color: rgba(110,231,183,0.3); color: var(--accent); }

/* === PROFILE VIEW === */
.profile-view-wrap { max-width: 700px; }
.profile-view-photo {
  width: 100%;
  max-height: 500px;
  object-fit: cover;
  border-radius: var(--radius);
  margin-bottom: 32px;
}
.profile-view-photo-placeholder {
  width: 100%;
  height: 320px;
  background: linear-gradient(135deg, #1e1e2e 0%, #2a2a3a 100%);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  margin-bottom: 32px;
}
.profile-view-name {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 8px;
}
.profile-view-tags { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 24px; }
.tag-pill {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 100px;
  background: var(--accent-glow);
  border: 1px solid rgba(110,231,183,0.15);
  color: var(--accent);
}
.profile-view-bio { color: var(--fg-muted); line-height: 1.75; margin-bottom: 32px; }
.profile-view-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--fg-muted);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-weight: 600;
  margin-bottom: 32px;
  transition: color 0.2s ease;
}
.profile-view-back:hover { color: var(--fg); }

/* === MATCHES === */
.matches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
  margin-top: 32px;
}
.match-card {
  background: var(--bg-card);
  border: 1px solid rgba(110,231,183,0.15);
  border-radius: var(--radius);
  overflow: hidden;
  text-decoration: none;
  display: block;
  transition: transform 0.25s ease;
}
.match-card:hover { transform: translateY(-4px); }
.match-card-photo {
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  background: var(--bg-elevated);
}
.match-card-placeholder {
  width: 100%;
  aspect-ratio: 1/1;
  background: linear-gradient(135deg, #1e2a26 0%, #1a2e22 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2.5rem;
}
.match-card-body { padding: 14px; }
.match-card-name {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--fg);
  margin-bottom: 4px;
}
.match-card-cred { font-size: 0.82rem; color: var(--accent); font-weight: 600; }
.match-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(110,231,183,0.1);
  border: 1px solid rgba(110,231,183,0.2);
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 24px;
}

/* === TOAST === */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 14px 20px;
  font-family: var(--font-display);
  font-size: 0.9rem;
  color: var(--fg);
  z-index: 999;
  transform: translateY(100px);
  opacity: 0;
  transition: all 0.3s ease;
  max-width: 320px;
}
.toast.show { transform: translateY(0); opacity: 1; }
.toast.match { border-color: rgba(110,231,183,0.4); color: var(--accent); }

/* === RESPONSIVE (app) === */
@media (max-width: 640px) {
  .form-row { grid-template-columns: 1fr; }
  .browse-header { flex-direction: column; align-items: flex-start; }
  .auth-card { padding: 28px 20px; }
  .form-card { padding: 20px; }
  .app-page { padding: 72px 16px 40px; }
}

@media (max-width: 480px) {
  .concept-cards {
    flex-direction: column;
    align-items: stretch;
  }

  .profile-card {
    width: 100%;
  }

  .card-offset {
    margin-top: 0;
  }
}