/* =========================================================
   Alif Reza — Link Hub Design System
   Fast, zero-dependency, mobile-first for Threads in-app browser
   ========================================================= */

:root {
  --bg: #070b14;
  --bg-glow: radial-gradient(900px 420px at 50% -10%, rgba(56, 189, 248, 0.14), transparent 70%),
             radial-gradient(600px 300px at 85% 15%, rgba(99, 102, 241, 0.10), transparent 70%);
  --surface: #0f1626;
  --surface-hover: #151f35;
  --surface-alt: #18233a;
  --text: #f8fafc;
  --text-soft: #94a3b8;
  --text-faint: #64748b;
  --border: #1e293b;
  --border-strong: #334155;

  --accent: #38bdf8;
  --accent-strong: #0ea5e9;
  --accent-soft: rgba(56, 189, 248, 0.12);
  --accent-border: rgba(56, 189, 248, 0.30);
  --on-accent: #04121f;

  --mine-bg: rgba(99, 102, 241, 0.14);
  --mine-text: #a5b4fc;
  --mine-border: rgba(99, 102, 241, 0.30);

  --free-bg: rgba(34, 197, 94, 0.12);
  --free-text: #86efac;
  --free-border: rgba(34, 197, 94, 0.28);

  --aff-bg: rgba(245, 158, 11, 0.12);
  --aff-text: #fcd34d;
  --aff-border: rgba(245, 158, 11, 0.28);

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 22px;
  --shadow: 0 20px 45px -20px rgba(0, 0, 0, 0.7);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Inter, Helvetica, Arial, sans-serif;
  --mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

[data-theme="light"] {
  --bg: #f8fafc;
  --bg-glow: radial-gradient(900px 420px at 50% -10%, rgba(29, 78, 216, 0.08), transparent 70%);
  --surface: #ffffff;
  --surface-hover: #f1f5f9;
  --surface-alt: #f1f5f9;
  --text: #0b1526;
  --text-soft: #475569;
  --text-faint: #64748b;
  --border: #e2e8f0;
  --border-strong: #cbd5e1;

  --accent: #1d4ed8;
  --accent-strong: #1e40af;
  --accent-soft: #eff6ff;
  --accent-border: #bfdbfe;
  --on-accent: #ffffff;

  --mine-bg: #eef2ff;
  --mine-text: #4338ca;
  --mine-border: #c7d2fe;

  --free-bg: #f0fdf4;
  --free-text: #15803d;
  --free-border: #bbf7d0;

  --aff-bg: #fffbeb;
  --aff-text: #b45309;
  --aff-border: #fde68a;

  --shadow: 0 14px 30px -16px rgba(15, 23, 42, 0.14);
}

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

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  background-color: var(--bg);
  background-image: var(--bg-glow);
  background-repeat: no-repeat;
  color: var(--text);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

button {
  font-family: inherit;
  cursor: pointer;
}

.shell {
  width: 100%;
  max-width: 660px;
  margin: 0 auto;
  padding: 20px 16px 56px;
}

/* Topbar */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

.brand-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-soft);
  padding: 5px 10px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

.theme-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 11px;
  border-radius: 999px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 12px;
  font-weight: 500;
  transition: border-color 0.15s ease, color 0.15s ease;
}

.theme-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

/* Profile Hero */
.profile-card {
  display: flex;
  flex-direction: column;
  gap: 14px;
  padding: 22px;
  border-radius: var(--radius-lg);
  background: var(--surface);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.profile-head {
  display: flex;
  align-items: center;
  gap: 14px;
}

.avatar {
  width: 62px;
  height: 62px;
  border-radius: 18px;
  flex-shrink: 0;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, #0ea5e9, #6366f1);
  color: #ffffff;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 0.03em;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.16);
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-title-wrap {
  min-width: 0;
}

.profile-name {
  margin: 0;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 7px;
  flex-wrap: wrap;
}

.handle-pill {
  font-family: var(--mono);
  font-size: 12px;
  font-weight: 500;
  color: var(--text-soft);
  background: var(--surface-alt);
  padding: 2px 8px;
  border-radius: 999px;
  border: 1px solid var(--border);
}

.profile-status {
  margin: 4px 0 0;
  font-size: 13px;
  font-weight: 500;
  color: var(--accent);
}

.profile-bio {
  margin: 0;
  font-size: 14.5px;
  color: var(--text-soft);
}

.social-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.social-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 12px;
  border-radius: 999px;
  font-size: 12.5px;
  font-weight: 500;
  background: var(--surface-alt);
  border: 1px solid var(--border);
  color: var(--text);
  transition: transform 0.12s ease, border-color 0.15s ease;
}

.social-pill:hover {
  transform: translateY(-1px);
  border-color: var(--border-strong);
}

/* Primary Spotlight Card */
.spotlight {
  position: relative;
  display: block;
  padding: 20px 22px;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--accent-soft), var(--surface) 65%);
  border: 1px solid var(--accent-border);
  box-shadow: var(--shadow);
  margin-bottom: 22px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}

.spotlight:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
}

.spotlight-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 8px;
}

.spotlight-eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
}

.spotlight-title {
  margin: 0 0 6px;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;
}

.spotlight-desc {
  margin: 0 0 14px;
  font-size: 14px;
  color: var(--text-soft);
}

.spotlight-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.spotlight-meta {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
}

.cta-primary {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 15px;
  border-radius: var(--radius-sm);
  background: var(--accent);
  color: var(--on-accent);
  font-size: 13.5px;
  font-weight: 700;
  transition: background 0.15s ease;
}

.spotlight:hover .cta-primary {
  background: var(--accent-strong);
}

/* Controls: Search & Filter Tabs */
.controls {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 16px;
}

.search-wrap {
  position: relative;
}

.search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--text-faint);
  pointer-events: none;
}

.search-input {
  width: 100%;
  padding: 10px 12px 10px 36px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: border-color 0.15s ease;
}

.search-input::placeholder {
  color: var(--text-faint);
}

.search-input:focus {
  border-color: var(--accent);
}

.tabs {
  display: flex;
  gap: 6px;
  overflow-x: auto;
  padding-bottom: 2px;
  scrollbar-width: none;
}

.tabs::-webkit-scrollbar {
  display: none;
}

.tab-btn {
  flex-shrink: 0;
  padding: 7px 13px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--surface);
  color: var(--text-soft);
  font-size: 13px;
  font-weight: 500;
  transition: all 0.15s ease;
}

.tab-btn:hover {
  border-color: var(--border-strong);
  color: var(--text);
}

.tab-btn.active {
  background: var(--accent-soft);
  border-color: var(--accent-border);
  color: var(--accent);
  font-weight: 600;
}

/* Cards List */
.cards-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.item-card {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px 18px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: transform 0.14s ease, border-color 0.15s ease, background 0.15s ease;
}

.item-card:hover {
  transform: translateY(-1px);
  background: var(--surface-hover);
  border-color: var(--border-strong);
}

.item-card.is-featured {
  border-color: var(--mine-border);
}

.item-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 3px 9px;
  border-radius: 999px;
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  border: 1px solid transparent;
}

.badge-mine {
  background: var(--mine-bg);
  color: var(--mine-text);
  border-color: var(--mine-border);
}

.badge-free {
  background: var(--free-bg);
  color: var(--free-text);
  border-color: var(--free-border);
}

.badge-affiliate {
  background: var(--aff-bg);
  color: var(--aff-text);
  border-color: var(--aff-border);
}

.item-price {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
}

.item-title {
  margin: 0;
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.item-why {
  margin: 0;
  font-size: 13.5px;
  color: var(--text-soft);
}

.item-bottom {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding-top: 2px;
}

.item-cta {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent);
}

.empty-state {
  text-align: center;
  padding: 32px 16px;
  border-radius: var(--radius);
  background: var(--surface);
  border: 1px dashed var(--border-strong);
  color: var(--text-soft);
  font-size: 14px;
}

/* Footer Disclosure */
.footer {
  margin-top: 28px;
  padding-top: 18px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.disclosure {
  margin: 0;
  font-size: 12px;
  color: var(--text-faint);
  line-height: 1.5;
}

.footer-meta {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--text-faint);
}

@media (max-width: 480px) {
  .profile-card,
  .spotlight {
    padding: 18px 16px;
  }

  .profile-name {
    font-size: 19px;
  }

  .spotlight-title {
    font-size: 17px;
  }
}