/* =====================
   Aurora Borealis Theme
   ===================== */
:root {
  --bg: #f2f5f9;
  --bg-card: #ffffff;
  --bg-card-alt: #eaeff6;
  --text: #0c1221;
  --text-muted: #4e5d73;
  --border: #d6dde8;
  --border-subtle: #e8edf4;
  --accent: #0a8f7c;
  --accent-hover: #067060;
  --accent-text: #ffffff;
  --tag-bg: #d4f4ee;
  --tag-text: #0a6b5c;
  --rank-1: #0a8f7c;
  --rank-2: #3b6fd4;
  --rank-3: #7c4dcc;
  --aurora-a: #0a8f7c;
  --aurora-b: #3b6fd4;
  --aurora-c: #7c4dcc;
}

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) {
    --bg: #070c14;
    --bg-card: #0d1422;
    --bg-card-alt: #111c2e;
    --text: #dce6f4;
    --text-muted: #5d7494;
    --border: #162030;
    --border-subtle: #111c2e;
    --accent: #2dd4bf;
    --accent-hover: #5eead4;
    --accent-text: #070c14;
    --tag-bg: #0d2a28;
    --tag-text: #2dd4bf;
    --rank-1: #2dd4bf;
    --rank-2: #60a5fa;
    --rank-3: #a78bfa;
    --aurora-a: #2dd4bf;
    --aurora-b: #60a5fa;
    --aurora-c: #a78bfa;
  }
}

html[data-theme="dark"] {
  --bg: #070c14;
  --bg-card: #0d1422;
  --bg-card-alt: #111c2e;
  --text: #dce6f4;
  --text-muted: #5d7494;
  --border: #162030;
  --border-subtle: #111c2e;
  --accent: #2dd4bf;
  --accent-hover: #5eead4;
  --accent-text: #070c14;
  --tag-bg: #0d2a28;
  --tag-text: #2dd4bf;
  --rank-1: #2dd4bf;
  --rank-2: #60a5fa;
  --rank-3: #a78bfa;
  --aurora-a: #2dd4bf;
  --aurora-b: #60a5fa;
  --aurora-c: #a78bfa;
}

/* =====================
   Reset & Base
   ===================== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--bg);
  color: var(--text);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  line-height: 1.6;
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  color: var(--accent-hover);
  text-decoration: underline;
}

/* =====================
   Layout
   ===================== */
.site-wrapper {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 1rem;
}

/* =====================
   Site Header
   ===================== */
.site-header {
  border-bottom: 1px solid var(--border);
  padding: 1.1rem 0;
  margin-bottom: 2.5rem;
}

.site-header .site-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-logo {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--text);
  letter-spacing: -0.03em;
  text-transform: uppercase;
}

.site-logo span {
  background: linear-gradient(90deg, var(--aurora-a), var(--aurora-b), var(--aurora-c));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* =====================
   Site Footer
   ===================== */
.site-footer {
  border-top: 1px solid var(--border);
  margin-top: 4rem;
  padding: 2rem 0;
  color: var(--text-muted);
  font-size: 0.82rem;
  text-align: center;
}

.site-footer p + p {
  margin-top: 0.3rem;
}

.site-footer a {
  color: var(--text-muted);
}

.site-footer a:hover {
  color: var(--accent);
}

/* =====================
   Index Page — Post List
   ===================== */
.section-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.post-list {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--border);
  margin-bottom: 2.5rem;
}

.post-card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border-subtle);
  transition: background 0.1s;
}

.post-card:hover .post-card-title a {
  color: var(--accent);
}

.post-card-icon {
  font-size: 1.5rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 0.15rem;
  width: 2rem;
  text-align: center;
}

.post-card-body {
  flex: 1;
  min-width: 0;
}

.post-card-title {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--text);
  line-height: 1.3;
}

.post-card-title a {
  color: inherit;
  transition: color 0.1s;
}

.post-card-title a:hover {
  text-decoration: none;
}

.post-card-meta {
  font-size: 0.775rem;
  color: var(--text-muted);
  margin-top: 0.2rem;
}

.post-card-excerpt {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.3rem;
  line-height: 1.5;
}

.post-card-arrow {
  color: var(--text-muted);
  font-size: 1rem;
  flex-shrink: 0;
  align-self: center;
}

/* Tag pill */
.tag {
  display: inline-block;
  background: var(--tag-bg);
  color: var(--tag-text);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.1rem 0.45rem;
  margin-right: 0.35rem;
  text-transform: uppercase;
}

/* =====================
   Top Page — Header
   ===================== */
.page-header {
  margin-bottom: 2rem;
  padding-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.breadcrumb {
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-bottom: 0.6rem;
}

.breadcrumb a {
  color: var(--text-muted);
}

.breadcrumb a:hover {
  color: var(--accent);
  text-decoration: none;
}

.page-header h1 {
  font-size: 1.5rem;
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 0.4rem;
}

.page-header .subtitle {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.page-header .updated {
  font-size: 0.75rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* =====================
   Top Page — Ranking Cards
   ===================== */
.top-list {
  display: flex;
  flex-direction: column;
  margin-bottom: 2.5rem;
}

.top-card {
  padding: 2rem 0;
  border-bottom: 1px solid var(--border-subtle);
}

.top-card:first-child {
  border-top: 1px solid var(--border-subtle);
}

.top-card-header {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0;
  margin-bottom: 1rem;
}

.rank-badge {
  font-size: 0.7rem;
  font-weight: 800;
  width: 1.75rem;
  height: 1.75rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  letter-spacing: 0.02em;
  color: var(--accent-text);
}

.rank-badge.gold   { background: var(--rank-1); }
.rank-badge.silver { background: var(--rank-2); }
.rank-badge.bronze { background: var(--rank-3); }
.rank-badge:not(.gold):not(.silver):not(.bronze) {
  background: var(--border);
  color: var(--text-muted);
}

.top-card-name {
  font-size: 1rem;
  font-weight: 700;
  flex: 1;
}

.top-card-badge {
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.15rem 0.5rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  white-space: nowrap;
}

.badge-best    { background: #d4f4ee; color: #0a5c50; }
.badge-popular { background: #e0e8fb; color: #2a4eaa; }
.badge-value   { background: #ede9fc; color: #5a30b5; }
.badge-free    { background: #dff5fe; color: #0c5474; }
.badge-pro     { background: #fde8f4; color: #862155; }

@media (prefers-color-scheme: dark) {
  html:not([data-theme="light"]) .badge-best    { background: #0b2e28; color: #2dd4bf; }
  html:not([data-theme="light"]) .badge-popular { background: #0f1e3e; color: #60a5fa; }
  html:not([data-theme="light"]) .badge-value   { background: #1c1040; color: #a78bfa; }
  html:not([data-theme="light"]) .badge-free    { background: #082234; color: #38bdf8; }
  html:not([data-theme="light"]) .badge-pro     { background: #2a0a1e; color: #f0abcb; }
}

html[data-theme="dark"] .badge-best    { background: #0b2e28; color: #2dd4bf; }
html[data-theme="dark"] .badge-popular { background: #0f1e3e; color: #60a5fa; }
html[data-theme="dark"] .badge-value   { background: #1c1040; color: #a78bfa; }
html[data-theme="dark"] .badge-free    { background: #082234; color: #38bdf8; }
html[data-theme="dark"] .badge-pro     { background: #2a0a1e; color: #f0abcb; }

.top-card-body {
  padding: 0;
}

.top-card-desc {
  font-size: 0.925rem;
  color: var(--text);
  margin-bottom: 1.5rem;
  line-height: 1.75;
}

.pros {
  font-size: 0.8rem;
  margin-bottom: 1.25rem;
}

.pros ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem 1.25rem;
}

.pros li::before { content: "+ "; color: var(--aurora-a); font-weight: 700; }

.top-card-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding: 1.25rem 0 0;
  border-top: 1px solid var(--border-subtle);
}

.price-label {
  font-size: 0.82rem;
  color: var(--text-muted);
}

.price-label strong {
  color: var(--text);
  font-size: 0.95rem;
}

.btn {
  display: inline-block;
  padding: 0.5rem 1rem;
  font-size: 0.82rem;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: opacity 0.15s;
  text-align: center;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.btn-primary {
  background: linear-gradient(90deg, var(--aurora-a), var(--aurora-b));
  color: #fff;
}

.btn-primary:hover {
  opacity: 0.85;
  color: #fff;
  text-decoration: none;
}

/* =====================
   Disclaimer box
   ===================== */
.disclaimer {
  border-left: 3px solid var(--accent);
  padding: 0.85rem 1rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 2rem;
  background: var(--bg-card-alt);
}

/* =====================
   Theme Toggle Button
   ===================== */
.theme-toggle {
  background: none;
  border: none;
  cursor: pointer;
  color: var(--text-muted);
  padding: 0.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: color 0.15s;
  flex-shrink: 0;
}

.theme-toggle:hover {
  color: var(--accent);
}

/* Light mode: show moon (click → go dark) */
html[data-theme="light"] .theme-toggle .icon-sun  { display: none; }
html[data-theme="light"] .theme-toggle .icon-moon { display: block; }

/* Dark mode: show sun (click → go light) */
html[data-theme="dark"] .theme-toggle .icon-sun  { display: block; }
html[data-theme="dark"] .theme-toggle .icon-moon { display: none; }

/* =====================
   Suggested Tops (Footer)
   ===================== */
.more-tops {
  border-bottom: 1px solid var(--border);
  padding-bottom: 1.5rem;
  margin-bottom: 1.5rem;
  text-align: left;
}

.more-tops-title {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.75rem;
}

.more-tops-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.more-tops-item a {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 0.15rem;
  transition: color 0.1s;
}

.more-tops-item a:hover {
  color: var(--accent);
  text-decoration: none;
}

.more-tops-item p {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
  margin: 0;
}

/* =====================
   Responsive — Tablet+
   ===================== */
@media (min-width: 600px) {
  .site-wrapper {
    padding: 0 1.5rem;
  }

  .page-header h1 {
    font-size: 1.9rem;
  }
}