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

/* --- CSS Custom Properties --- */
:root,
[data-theme="light"] {
  --bg:          #FFF7F4;
  --bg-surface:  #FFFFFF;
  --bg-elevated: #FFFFFF;
  --bg-inset:    #f5eeeb;
  --bg-hover:    rgba(0, 0, 0, 0.03);

  --text-primary:   #1a1a2e;
  --text-secondary: #6b6580;
  --text-tertiary:  #9a93a8;

  --accent:         #f4d06f;
  --accent-hover:   #e6c25a;
  --accent-subtle:  rgba(244, 208, 111, 0.15);
  --rose:           #f8e6ea;
  --rose-hover:     #f0d4da;

  --border:         rgba(0, 0, 0, 0.07);
  --border-strong:  rgba(0, 0, 0, 0.12);
  --shadow-sm:      0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow-md:      0 4px 12px rgba(0, 0, 0, 0.06);
  --shadow-lg:      0 12px 40px rgba(0, 0, 0, 0.08);
  --shadow-glow:    0 0 0 3px rgba(244, 208, 111, 0.25);

  --nav-bg:         rgba(255, 247, 244, 0.6);
  --nav-border:     rgba(0, 0, 0, 0.04);
  --nav-shadow:     0 1px 8px rgba(0, 0, 0, 0.04);
  --cmd-bg:         rgba(255, 255, 255, 0.98);
  --backdrop:       rgba(26, 26, 46, 0.25);

  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --radius-xl:  20px;

  --code-bg:    #f5eeeb;
  --code-text:  #c7254e;

  color-scheme: light;
}

[data-theme="dark"] {
  --bg:          #141420;
  --bg-surface:  #1c1c30;
  --bg-elevated: #222238;
  --bg-inset:    #18182a;
  --bg-hover:    rgba(255, 255, 255, 0.04);

  --text-primary:   #f0ebe8;
  --text-secondary: #a09ab0;
  --text-tertiary:  #706a80;

  --accent:         #f4d06f;
  --accent-hover:   #f8dc8a;
  --accent-subtle:  rgba(244, 208, 111, 0.1);
  --rose:           rgba(248, 230, 234, 0.08);
  --rose-hover:     rgba(248, 230, 234, 0.14);

  --border:         rgba(255, 255, 255, 0.07);
  --border-strong:  rgba(255, 255, 255, 0.12);
  --shadow-sm:      0 1px 2px rgba(0, 0, 0, 0.2);
  --shadow-md:      0 4px 12px rgba(0, 0, 0, 0.25);
  --shadow-lg:      0 12px 40px rgba(0, 0, 0, 0.35);
  --shadow-glow:    0 0 0 3px rgba(244, 208, 111, 0.15);

  --nav-bg:         rgba(20, 20, 32, 0.75);
  --nav-border:     rgba(255, 255, 255, 0.05);
  --nav-shadow:     0 1px 8px rgba(0, 0, 0, 0.15);
  --cmd-bg:         rgba(28, 28, 48, 0.98);
  --backdrop:       rgba(0, 0, 0, 0.5);

  --code-bg:    #1e1e34;
  --code-text:  #f4d06f;

  color-scheme: dark;
}

/* Auto theme: follow system */
@media (prefers-color-scheme: dark) {
  [data-theme="auto"] {
    --bg:          #141420;
    --bg-surface:  #1c1c30;
    --bg-elevated: #222238;
    --bg-inset:    #18182a;
    --bg-hover:    rgba(255, 255, 255, 0.04);
    --text-primary:   #f0ebe8;
    --text-secondary: #a09ab0;
    --text-tertiary:  #706a80;
    --accent:         #f4d06f;
    --accent-hover:   #f8dc8a;
    --accent-subtle:  rgba(244, 208, 111, 0.1);
    --rose:           rgba(248, 230, 234, 0.08);
    --rose-hover:     rgba(248, 230, 234, 0.14);
    --border:         rgba(255, 255, 255, 0.07);
    --border-strong:  rgba(255, 255, 255, 0.12);
    --shadow-sm:      0 1px 2px rgba(0, 0, 0, 0.2);
    --shadow-md:      0 4px 12px rgba(0, 0, 0, 0.25);
    --shadow-lg:      0 12px 40px rgba(0, 0, 0, 0.35);
    --shadow-glow:    0 0 0 3px rgba(244, 208, 111, 0.15);
    --nav-bg:         rgba(20, 20, 32, 0.75);
    --nav-border:     rgba(255, 255, 255, 0.05);
    --nav-shadow:     0 1px 8px rgba(0, 0, 0, 0.15);
    --cmd-bg:         rgba(28, 28, 48, 0.98);
    --backdrop:       rgba(0, 0, 0, 0.5);
    --code-bg:    #1e1e34;
    --code-text:  #f4d06f;
    color-scheme: dark;
  }
}

/* --- Base --- */
html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  font-size: 15px;
  line-height: 1.6;
  color: var(--text-primary);
  background-color: var(--bg);
  transition: background-color 0.3s ease, color 0.3s ease;
}

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

img {
  max-width: 100%;
  height: auto;
}

::selection {
  background: var(--accent);
  color: var(--text-primary);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

h1 { font-size: 2.5rem; }
h2 { font-size: 1.5rem; }
h3 { font-size: 1.2rem; }

code {
  font-family: 'JetBrains Mono', 'Fira Code', monospace;
  font-size: 0.875em;
  background: var(--code-bg);
  color: var(--code-text);
  padding: 0.15em 0.4em;
  border-radius: var(--radius-sm);
}

pre {
  background: var(--code-bg);
  border-radius: var(--radius-md);
  padding: 1.25rem;
  overflow-x: auto;
  border: 1px solid var(--border);
}

pre code {
  background: none;
  padding: 0;
  color: var(--text-primary);
}

/* --- Navigation --- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--nav-bg);
  backdrop-filter: blur(20px) saturate(1.8);
  -webkit-backdrop-filter: blur(20px) saturate(1.8);
  border-bottom: 1px solid var(--nav-border);
  box-shadow: var(--nav-shadow);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
  height: 56px;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.nav-logo {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  transition: transform 0.2s ease;
}

.nav-logo:hover {
  transform: scale(1.03);
}

.nav-logo-name {
  font-family: 'Jost', sans-serif;
  font-size: 0.95rem;
  font-weight: 500;
  white-space: nowrap;
  letter-spacing: 0.01em;
}

.nav-logo-sep {
  color: var(--border-strong);
  font-family: 'Jost', sans-serif;
  font-weight: 300;
  font-size: 1.1rem;
  opacity: 0.5;
}

/* --- Desktop: flat nav links (visible > 900px) --- */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  margin-left: 1rem;
}

.nav-link {
  padding: 0.4rem 0;
  width: 5.5rem;
  text-align: center;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: var(--radius-sm);
  transition: color 0.15s ease, background-color 0.15s ease;
}

.nav-link:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.nav-link.is-active {
  color: var(--text-primary);
}

/* --- Compact: dropdown nav menu (visible <= 900px) --- */
.nav-dropdown {
  display: none;
  position: relative;
  margin-left: 0.5rem;
  flex-shrink: 0;
}

.nav-dropdown-trigger {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-tertiary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.nav-dropdown-trigger:hover,
.nav-dropdown.is-open .nav-dropdown-trigger {
  color: var(--text-secondary);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.nav-dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  min-width: 140px;
  background: var(--bg-elevated);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 4px;
  opacity: 0;
  visibility: hidden;
  transform: translateY(-4px);
  transition: opacity 0.15s ease, transform 0.15s ease, visibility 0.15s ease;
  z-index: 200;
}

.nav-dropdown.is-open .nav-dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.nav-dropdown-item {
  display: block;
  padding: 0.45rem 0.75rem;
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-radius: calc(var(--radius-md) - 4px);
  transition: color 0.1s ease, background-color 0.1s ease;
}

.nav-dropdown-item:hover {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.nav-dropdown-item.is-active {
  color: var(--text-primary);
}

/* --- Nav actions --- */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-left: auto;
  flex-shrink: 0;
}

/* --- Desktop: full search bar (visible > 900px) --- */
.cmd-trigger--full {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 0.85rem;
  height: 36px;
  font-size: 0.825rem;
  color: var(--text-tertiary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  font-family: inherit;
  white-space: nowrap;
  min-width: 240px;
}

.cmd-trigger--full:hover {
  color: var(--text-secondary);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.cmd-trigger-text {
  flex: 1;
}

.cmd-trigger-kbd {
  display: flex;
  align-items: center;
  gap: 2px;
  font-family: inherit;
  font-size: 0.75rem;
  color: var(--text-tertiary);
  opacity: 0.7;
}

.kbd-symbol {
  font-size: 0.85rem;
}

/* --- Compact: icon-only search (visible <= 900px) --- */
.cmd-trigger--icon {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-tertiary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.cmd-trigger--icon:hover {
  color: var(--text-secondary);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

/* --- Desktop: 3-button theme switch (visible > 900px) --- */
.theme-switch {
  display: flex;
  align-items: center;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 3px;
  position: relative;
  gap: 2px;
}

.theme-switch-option {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 28px;
  border: none;
  background: none;
  border-radius: calc(var(--radius-md) - 3px);
  cursor: pointer;
  color: var(--text-tertiary);
  transition: color 0.15s ease;
  position: relative;
  z-index: 1;
}

.theme-switch-option:hover {
  color: var(--text-secondary);
}

.theme-switch-option.is-active {
  color: var(--text-primary);
}

.theme-switch-indicator {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 30px;
  height: 28px;
  background: var(--bg-hover);
  border-radius: calc(var(--radius-md) - 3px);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease;
  pointer-events: none;
}

[data-theme="light"] .theme-switch-indicator { transform: translateX(0); }
[data-theme="auto"]  .theme-switch-indicator { transform: translateX(32px); }
[data-theme="dark"]  .theme-switch-indicator { transform: translateX(64px); }

/* --- Compact: single cycling theme button (visible <= 900px) --- */
.theme-cycle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  color: var(--text-tertiary);
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
}

.theme-cycle:hover {
  color: var(--text-secondary);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.theme-icon {
  display: none;
}

[data-theme="light"] .theme-icon-light,
[data-theme="auto"]  .theme-icon-auto,
[data-theme="dark"]  .theme-icon-dark {
  display: block;
}

:root:not([data-theme="light"]):not([data-theme="dark"]) .theme-icon-auto {
  display: block;
}

/* --- Main --- */
.main {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
  padding-top: 56px;
  min-height: calc(100vh - 56px);
}

/* --- Hero --- */
.hero {
  padding: 5rem 0 3rem;
  max-width: 640px;
}

.hero-title {
  font-size: clamp(2.25rem, 5vw, 3.25rem);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.15;
  margin-bottom: 1rem;
}

.hero-title .highlight {
  background: #e8a84c;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-description {
  font-size: 1.1rem;
  line-height: 1.7;
  color: var(--text-secondary);
  max-width: 520px;
}

.hero-links {
  display: flex;
  gap: 0.75rem;
  margin-top: 2rem;
}

.hero-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.6rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  border-radius: var(--radius-md);
  transition: all 0.2s ease;
}

.hero-link--primary {
  background: var(--text-primary);
  color: var(--bg);
}

.hero-link--primary:hover {
  opacity: 0.85;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.hero-link--secondary {
  background: var(--bg-surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
}

.hero-link--secondary:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
  transform: translateY(-1px);
}

/* --- Section --- */
.section {
  padding: 2rem 0 1rem;
}

.section-header {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
}

.section-link {
  font-size: 0.825rem;
  font-weight: 500;
  color: var(--text-tertiary);
  transition: color 0.15s ease;
}

.section-link:hover {
  color: var(--text-primary);
}

/* --- Cards Grid --- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: all 0.2s ease;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card-meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-tertiary);
}

.card-category {
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  text-transform: capitalize;
}

.card-category--blog {
  background: var(--rose);
  color: var(--text-secondary);
}

.card-category--code {
  background: var(--accent-subtle);
  color: var(--text-secondary);
}

.card-category--research {
  background: rgba(150, 130, 220, 0.12);
  color: var(--text-secondary);
}

.card-title {
  font-size: 1.05rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.35;
}

.card-excerpt {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--text-secondary);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-footer {
  margin-top: auto;
  padding-top: 0.5rem;
  font-size: 0.8rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

/* --- Single Post --- */
.post {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.post-header {
  margin-bottom: 2.5rem;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
  font-size: 0.85rem;
  color: var(--text-tertiary);
}

.post-category {
  font-weight: 500;
  padding: 0.15rem 0.5rem;
  border-radius: 50px;
  font-size: 0.75rem;
  text-transform: capitalize;
}

.post-category--blog     { background: var(--rose); }
.post-category--code     { background: var(--accent-subtle); }
.post-category--research { background: rgba(150, 130, 220, 0.12); }

.post-title {
  font-size: clamp(1.75rem, 4vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
}

.post-subtitle {
  margin-top: 0.75rem;
  font-size: 1.1rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.post-footer {
  margin-top: 3rem;
  padding-top: 2rem;
  border-top: 1px solid var(--border);
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.15s ease;
}

.back-link:hover {
  color: var(--text-primary);
}

/* --- Prose (post content) --- */
.prose p {
  margin-bottom: 1.25rem;
  line-height: 1.75;
  color: var(--text-secondary);
}

.prose h2 {
  margin-top: 2.5rem;
  margin-bottom: 1rem;
}

.prose h3 {
  margin-top: 2rem;
  margin-bottom: 0.75rem;
}

.prose ul, .prose ol {
  margin-bottom: 1.25rem;
  padding-left: 1.5rem;
  color: var(--text-secondary);
}

.prose li {
  margin-bottom: 0.4rem;
  line-height: 1.7;
}

.prose blockquote {
  border-left: 3px solid var(--accent);
  padding: 0.5rem 1rem;
  margin: 1.5rem 0;
  background: var(--bg-inset);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.prose blockquote p {
  color: var(--text-secondary);
  margin-bottom: 0;
}

.prose a {
  color: var(--text-primary);
  text-decoration: underline;
  text-decoration-color: var(--accent);
  text-underline-offset: 2px;
  transition: text-decoration-color 0.15s ease;
}

.prose a:hover {
  text-decoration-color: var(--text-primary);
}

.prose img {
  display: block;
  max-width: 100%;
  height: auto;
  margin: 1.5rem auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
}

.prose hr {
  border: none;
  border-top: 1px solid var(--border);
  margin: 2.5rem 0;
}

/* --- Page --- */
.page {
  max-width: 680px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.page-header {
  margin-bottom: 2rem;
}

.page-title {
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  font-weight: 700;
  letter-spacing: -0.03em;
}

.page-subtitle {
  margin-top: 0.5rem;
  color: var(--text-secondary);
  font-size: 1.05rem;
}

/* --- Category Page --- */
.category-page {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 0 4rem;
}

.category-page .cards {
  grid-template-columns: 1fr;
}

.category-page .card {
  padding: 1.75rem 2rem;
}

.category-page .card-title {
  font-size: 1.15rem;
}

.category-page .card-excerpt {
  -webkit-line-clamp: 3;
}

.category-page-header {
  margin-bottom: 2rem;
}

.category-page-title {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.category-page-desc {
  margin-top: 0.5rem;
  color: var(--text-secondary);
  font-size: 1rem;
}

.empty-state {
  text-align: center;
  padding: 3rem 1rem;
  color: var(--text-tertiary);
}

.empty-state p {
  font-size: 0.95rem;
}

/* --- Command Palette --- */
.cmd-palette {
  position: fixed;
  inset: 0;
  z-index: 999;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding-top: min(20vh, 200px);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.15s ease, visibility 0.15s ease;
}

.cmd-palette.is-open {
  opacity: 1;
  visibility: visible;
}

.cmd-backdrop {
  position: absolute;
  inset: 0;
  background: var(--backdrop);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}

.cmd-modal {
  position: relative;
  width: min(800px, calc(100vw - 2rem));
  background: var(--cmd-bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: scale(0.98) translateY(-8px);
  transition: transform 0.15s ease;
}

.cmd-palette.is-open .cmd-modal {
  transform: scale(1) translateY(0);
}

.cmd-input-wrap {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 1.15rem 1.5rem;
  min-height: 64px;
  border-bottom: 1px solid var(--border);
}

.cmd-search-icon {
  flex-shrink: 0;
  color: var(--text-tertiary);
}

.cmd-input {
  flex: 1;
  background: none;
  border: none;
  outline: none;
  font-family: inherit;
  font-size: 1.15rem;
  color: var(--text-primary);
}

.cmd-input::placeholder {
  color: var(--text-tertiary);
}

.cmd-esc {
  font-family: inherit;
  font-size: 0.7rem;
  color: var(--text-tertiary);
  background: var(--bg-inset);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.1rem 0.4rem;
}

.cmd-results {
  max-height: 360px;
  overflow-y: auto;
  padding: 0.5rem;
}

.cmd-group {
  margin-bottom: 0.25rem;
}

.cmd-group-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-tertiary);
  padding: 0.5rem 0.75rem 0.35rem;
}

.cmd-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  width: 100%;
  padding: 0.55rem 0.75rem;
  font-size: 0.875rem;
  color: var(--text-secondary);
  border-radius: var(--radius-md);
  border: none;
  background: none;
  cursor: pointer;
  font-family: inherit;
  text-align: left;
  transition: all 0.1s ease;
}

.cmd-item:hover,
.cmd-item.is-active {
  background: var(--bg-hover);
  color: var(--text-primary);
}

.cmd-item-icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  color: var(--text-tertiary);
}

.cmd-item-label {
  flex: 1;
}

.cmd-item[hidden] {
  display: none;
}

.cmd-footer {
  display: flex;
  gap: 1rem;
  padding: 0.6rem 1rem;
  border-top: 1px solid var(--border);
  background: var(--bg-inset);
}

.cmd-hint {
  font-size: 0.7rem;
  color: var(--text-tertiary);
  display: flex;
  align-items: center;
  gap: 0.3rem;
}

.cmd-hint kbd {
  font-family: inherit;
  font-size: 0.65rem;
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: 3px;
  padding: 0 0.3rem;
  min-width: 1.2rem;
  text-align: center;
  line-height: 1.6;
}

/* --- Footer --- */
.footer {
  border-top: 1px solid var(--border);
  padding: 2rem 0;
  margin-top: 0;
}

.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-copy {
  font-size: 0.825rem;
  color: var(--text-tertiary);
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-link {
  color: var(--text-tertiary);
  transition: color 0.15s ease;
  display: flex;
  align-items: center;
}

.footer-link:hover {
  color: var(--text-primary);
}

/* --- Divider --- */
.divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 1rem 0;
}

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(12px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in:nth-child(2) { transition-delay: 0.05s; }
.fade-in:nth-child(3) { transition-delay: 0.1s; }
.fade-in:nth-child(4) { transition-delay: 0.15s; }
.fade-in:nth-child(5) { transition-delay: 0.2s; }
.fade-in:nth-child(6) { transition-delay: 0.25s; }

/* --- Responsive --- */

/* Tablet: compact search + theme, keep flat nav links */
@media (max-width: 900px) {
  .cmd-trigger--full  { display: none; }
  .theme-switch       { display: none; }

  .cmd-trigger--icon  { display: flex; }
  .theme-cycle        { display: flex; }
}

/* Mobile: swap flat nav links for hamburger dropdown */
@media (max-width: 768px) {
  .nav-inner {
    padding: 0 1rem;
  }

  .nav-links          { display: none; }
  .nav-dropdown       { display: block; }

  .main {
    padding: 0 1rem;
    padding-top: 56px;
  }

  .hero {
    padding: 3rem 0 2rem;
  }

  h1 { font-size: 2rem; }

  .cards {
    grid-template-columns: 1fr;
  }

  .hero-links {
    flex-direction: column;
  }

  .hero-link {
    justify-content: center;
  }

  .footer-inner {
    padding: 0 1rem;
  }
}

/* --- Scrollbar --- */
::-webkit-scrollbar {
  width: 6px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-tertiary);
}