/* ==========================================================================
   AiPRIL -- Noodle-Inspired Terminal-Editorial Design System
   100% JetBrains Mono, 20px dot-grid, 1px hairline matrices, sharp corners.
   WINTER (Midnight Sapphire): #213953 · #156AA8 · #4D8CC5 · #8FB1D3 · #CDD7E2
   SPRING (Warm Blossom):      #678215 · #FCD4BE · #F8F8EF · #FFE8DE · #FD832B · #FEC62D
   ========================================================================== */

:root,
[data-theme="winter"] {
  color-scheme: dark;
  --bg: #213953;
  --bg-depth: #192C42;
  --surface: #274564;
  --surface-hover: #2E5175;
  --grid-line: #2F5378;
  --dot-color: #31567D;
  --border: #365F8A;
  --border-strong: #4D8CC5;

  --text: #F2F6FA;
  --text-body: #DCE4EE;
  --text-muted: #CDD7E2;
  --text-dim: #8FB1D3;
  --hero-sub: #4D8CC5;

  --accent: #8FB1D3;
  --accent-hover: #CDD7E2;
  --accent-text: #CDD7E2;
  --accent-link: #8FB1D3;
  --accent-bg: rgba(21, 106, 168, 0.36);
  --accent-border: rgba(77, 140, 197, 0.55);
  --accent-glow: rgba(21, 106, 168, 0.24);
  --cursor-color: #8FB1D3;

  --selection-bg: #8FB1D3;
  --selection-fg: #213953;

  --btn-primary-bg: #8FB1D3;
  --btn-primary-fg: #213953;
  --header-bg: rgba(33, 57, 83, 0.92);

  --font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
}

[data-theme="spring"] {
  color-scheme: light;
  --bg: #F8F8EF;
  --bg-depth: #FFE8DE;
  --surface: #FFE8DE;
  --surface-hover: #FCD4BE;
  --grid-line: #F0C0A6;
  --dot-color: #FCD4BE;
  --border: #EBB89C;
  --border-strong: #FD832B;

  --text: #222A14;
  --text-body: #313B1E;
  --text-muted: #55613F;
  --text-dim: #678215;
  --hero-sub: #678215;

  --accent: #FD832B;
  --accent-hover: #FEC62D;
  --accent-text: #587011;
  --accent-link: #587011;
  --accent-bg: #FFE8DE;
  --accent-border: #FCD4BE;
  --accent-glow: rgba(254, 198, 45, 0.18);
  --cursor-color: #FD832B;

  --selection-bg: #FEC62D;
  --selection-fg: #222A14;

  --btn-primary-bg: #FD832B;
  --btn-primary-fg: #222A14;
  --header-bg: rgba(248, 248, 239, 0.92);
}

/* ==========================================================================
   Reset & Global Typography
   ========================================================================== */

*,
*::before,
*::after {
  box-sizing: border-box;
  border-radius: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-mono);
  background-color: var(--bg);
  color: var(--text);
  font-size: 15px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  transition: background-color 0.25s ease, color 0.25s ease;
}

::selection {
  background: var(--selection-bg);
  color: var(--selection-fg);
}

::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

::-webkit-scrollbar-track {
  background: var(--bg);
}

::-webkit-scrollbar-thumb {
  background: var(--border);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--border-strong);
}

a {
  color: inherit;
}

h1,
h2,
h3,
h4,
p,
ul,
ol,
dl,
dd {
  margin: 0;
}

[hidden] {
  display: none !important;
}

:focus-visible {
  outline: 2px solid var(--cursor-color);
  outline-offset: 2px;
}

/* ==========================================================================
   Shell & Sticky 52px Header
   ========================================================================== */

.site-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  width: 100%;
  overflow-x: hidden;
}

.header {
  width: 100%;
  border-bottom: 1px solid var(--grid-line);
  background: var(--header-bg);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: 1360px;
  margin: 0 auto;
  padding: 0 32px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.header-left {
  display: flex;
  align-items: center;
  gap: 36px;
}

.brand {
  color: var(--text);
  font-weight: 700;
  letter-spacing: 0.2em;
  font-size: 0.875rem;
  text-decoration: none;
  transition: color 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.brand:hover {
  color: var(--cursor-color);
}

.header-nav {
  display: none;
  align-items: center;
  gap: 24px;
}

@media (min-width: 860px) {
  .header-nav {
    display: flex;
  }
}

.nav-link {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.05em;
  transition: color 0.2s;
  white-space: nowrap;
}

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

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}

.divider-v {
  height: 16px;
  width: 1px;
  background: var(--border);
}

.season-switch {
  appearance: none;
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 4px 10px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  color: var(--text-dim);
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.season-switch:hover {
  border-color: var(--border-strong);
}

.season-sep {
  color: var(--border-strong);
}

[data-theme="winter"] .season-opt[data-season="winter"],
[data-theme="spring"] .season-opt[data-season="spring"] {
  color: var(--cursor-color);
  font-weight: 700;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.external-top-link {
  font-size: 0.8125rem;
  color: var(--text-muted);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: color 0.2s;
}

.external-top-link:hover {
  color: var(--text);
}

.mobile-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 20px;
  border-top: 1px solid var(--grid-line);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}

@media (min-width: 860px) {
  .mobile-nav {
    display: none;
  }
}

/* ==========================================================================
   Main Dot-Grid Canvas & Layout Container
   ========================================================================== */

.main {
  flex-grow: 1;
  width: 100%;
  padding: 72px 32px 120px;
  background-image: radial-gradient(var(--dot-color) 1px, transparent 0);
  background-size: 20px 20px;
}

@media (max-width: 640px) {
  .header-inner {
    padding: 0 20px;
  }

  .main {
    padding: 44px 20px 88px;
  }
}

.container {
  max-width: 1360px;
  margin: 0 auto;
}

/* ==========================================================================
   Badges & Section Labels
   ========================================================================== */

.badge-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-bottom: 36px;
}

.tag {
  display: inline-block;
  padding: 2px 8px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--accent-text);
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 600;
}

.badge-label {
  font-size: 0.6875rem;
  color: var(--text-dim);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.section-block {
  margin-bottom: 0;
}

.section-label {
  font-size: 0.8125rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.section-label.no-mb {
  margin-bottom: 0;
}

.divider-line {
  border: none;
  border-top: 1px solid var(--grid-line);
  margin: 64px 0;
}

/* ==========================================================================
   Hero & Quick-Start Terminal Strip
   ========================================================================== */

.hero {
  margin-bottom: 16px;
}

.hero-title {
  font-weight: 700;
  line-height: 1;
  margin-bottom: 10px;
  letter-spacing: -0.02em;
  font-size: clamp(54px, 8vw, 96px);
  color: var(--text);
}

.hero-subtitle {
  font-weight: 700;
  line-height: 1.04;
  margin-bottom: 36px;
  letter-spacing: -0.02em;
  font-size: clamp(40px, 6.8vw, 84px);
  color: var(--hero-sub);
}

.block {
  display: block;
}

.cursor::after {
  content: "_";
  animation: blink 1.2s step-end infinite;
  color: var(--cursor-color);
  font-weight: 700;
}

.hero-desc {
  font-size: 1.05rem;
  color: var(--text-muted);
  max-width: 660px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.btn-primary,
.btn-solid {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--btn-primary-bg);
  border: 1px solid var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-primary:hover,
.btn-solid:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.btn-secondary,
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 22px;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-weight: 500;
  font-size: 0.875rem;
  letter-spacing: 0.025em;
  text-decoration: none;
  cursor: pointer;
  transition: border-color 0.2s, color 0.2s, background 0.2s;
}

.btn-secondary:hover,
.btn-ghost:hover {
  border-color: var(--border-strong);
  color: var(--text);
  background: var(--surface);
}

.btn-sm {
  padding: 6px 12px;
  font-size: 0.75rem;
}

/* Quick-start terminal strip */
.quickstart {
  margin-top: 44px;
  max-width: 720px;
}

.quickstart-label {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.quickstart-block {
  position: relative;
  background: var(--bg-depth);
  border: 1px solid var(--border);
  overflow: hidden;
  display: flex;
  align-items: stretch;
  justify-content: space-between;
}

.quickstart-pre {
  margin: 0;
  padding: 16px 20px;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-body);
  overflow-x: auto;
  flex: 1;
}

.quickstart-pre code {
  font-family: var(--font-mono);
}

.quickstart-url {
  color: var(--accent-text);
  font-weight: 600;
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}

.quickstart-url:hover {
  text-decoration-color: var(--accent-text);
}

.code-comment {
  color: var(--text-dim);
}

.quickstart-copy {
  padding: 0 20px;
  background: var(--surface);
  border: none;
  border-left: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  cursor: pointer;
  flex-shrink: 0;
  transition: color 0.2s, background 0.2s;
}

.quickstart-copy:hover {
  color: var(--text);
  background: var(--surface-hover);
}

.quickstart-copy.is-copied {
  color: var(--cursor-color);
  font-weight: 700;
}

/* ==========================================================================
   00 // README.md Matrix (5-Paragraph Personal Intro + Quick Specs)
   ========================================================================== */

.readme-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

@media (min-width: 1024px) {
  .readme-matrix {
    grid-template-columns: 1.85fr 1fr;
  }
}

.readme-story,
.readme-specs {
  background: var(--bg);
  padding: 32px;
}

.story-prose {
  display: flex;
  flex-direction: column;
  gap: 18px;
  color: var(--text-body);
  font-size: 0.9375rem;
  line-height: 1.85;
}

.story-prose strong {
  color: var(--text);
  font-weight: 700;
}

.story-prose a {
  color: var(--accent-text);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}

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

.spec-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.spec-item {
  padding-bottom: 14px;
  border-bottom: 1px solid var(--grid-line);
}

.spec-item:last-child {
  padding-bottom: 0;
  border-bottom: none;
}

.spec-item dt {
  font-size: 0.6875rem;
  color: var(--text-dim);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 4px;
}

.spec-item dd {
  font-size: 0.875rem;
  color: var(--text-body);
  line-height: 1.5;
}

/* ==========================================================================
   1px Hairline Feature Cards Grid (Craft, Lab, Human, Connect)
   ========================================================================== */

.cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

@media (min-width: 768px) {
  .cards-grid.cols-4 {
    grid-template-columns: repeat(2, 1fr);
  }

  .cards-grid.cols-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1100px) {
  .cards-grid.cols-4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.feature-card {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  padding: 32px;
  border: 1px solid transparent;
  display: flex;
  flex-direction: column;
  text-decoration: none;
  transition: border-color 0.2s, background 0.2s;
}

.feature-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
  pointer-events: none;
}

.feature-card:hover::before {
  opacity: 1;
}

.feature-card:hover {
  border-color: var(--border-strong);
}

.card-top-meta {
  margin-bottom: 16px;
  position: relative;
  z-index: 1;
}

.card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
}

.card-icon {
  width: 28px;
  height: 28px;
  background: var(--surface);
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--cursor-color);
  flex-shrink: 0;
}

.card-title {
  color: var(--text);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
}

.card-desc {
  color: var(--text-muted);
  font-size: 0.875rem;
  line-height: 1.8;
  position: relative;
  z-index: 1;
}

.skill-tags {
  list-style: none;
  padding: 22px 0 0;
  margin-top: auto;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  position: relative;
  z-index: 1;
}

.skill-tags li {
  font-size: 0.6875rem;
  padding: 3px 8px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-body);
  letter-spacing: 0.03em;
}

.card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: auto;
  padding-top: 24px;
  font-size: 0.8125rem;
  color: var(--accent-link);
  font-weight: 500;
  text-decoration: none;
  letter-spacing: 0.04em;
  position: relative;
  z-index: 1;
  transition: color 0.2s;
}

.feature-card:hover .card-link,
.card-link:hover {
  color: var(--accent-text);
}

.connect-card {
  gap: 8px;
}

.connect-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--text);
  margin-top: 4px;
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   03 // Writing Feed & Pillar Filter Bar
   ========================================================================== */

.section-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 28px;
}

.section-bar-controls {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.writing-filter-group {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

.filter-chip {
  appearance: none;
  background: var(--bg);
  border: none;
  padding: 6px 12px;
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.filter-chip:hover {
  color: var(--text);
  background: var(--surface);
}

.filter-chip.active {
  background: var(--btn-primary-bg);
  color: var(--btn-primary-fg);
  font-weight: 700;
}

.studio-launch-link {
  font-size: 0.75rem;
  padding: 6px 12px;
  border: 1px solid var(--accent-border);
  background: var(--accent-bg);
  color: var(--accent-text);
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.posts-matrix {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--grid-line);
  border: 1px solid var(--grid-line);
}

.post-row {
  position: relative;
  overflow: hidden;
  background: var(--bg);
  padding: 26px 32px;
  border: 1px solid transparent;
  text-decoration: none;
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
  align-items: center;
  transition: border-color 0.2s, background 0.2s;
}

@media (min-width: 860px) {
  .post-row {
    grid-template-columns: 200px 1fr auto;
    gap: 28px;
  }
}

.post-row::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--accent-glow) 0%, transparent 55%);
  opacity: 0;
  transition: opacity 0.25s;
  pointer-events: none;
}

.post-row:hover::before {
  opacity: 1;
}

.post-row:hover {
  border-color: var(--border-strong);
}

.post-row-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}

.post-row-date {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.post-row-main {
  position: relative;
  z-index: 1;
}

.post-row-main h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.post-row-main p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.post-row-right {
  font-size: 0.8125rem;
  color: var(--accent-link);
  font-weight: 500;
  white-space: nowrap;
  position: relative;
  z-index: 1;
  transition: color 0.2s;
}

.post-row:hover .post-row-right {
  color: var(--accent-text);
}

.empty-feed {
  background: var(--bg);
  padding: 32px;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.empty-feed a {
  color: var(--accent-text);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.footer {
  border-top: 1px solid var(--grid-line);
  padding: 24px 32px;
  background: var(--bg);
}

.footer-inner {
  max-width: 1360px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.footer-text {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
}

.footer-top-link:hover {
  color: var(--cursor-color);
}

/* ==========================================================================
   Article Reader Page (post.html -- Noodle Docs Aesthetic)
   ========================================================================== */

.article-main {
  flex-grow: 1;
  width: 100%;
  padding: 64px 24px 112px;
  background-image: radial-gradient(var(--dot-color) 1px, transparent 0);
  background-size: 20px 20px;
}

.article-container {
  max-width: 780px;
  margin: 0 auto;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: clamp(28px, 5vw, 56px);
}

.article-meta-bar {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.meta-dot,
.mono-date {
  font-size: 0.75rem;
  color: var(--text-dim);
  letter-spacing: 0.06em;
}

.article-title {
  font-size: clamp(1.65rem, 3.6vw, 2.35rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  color: var(--text);
  margin-bottom: 16px;
}

.article-lead {
  font-size: 0.975rem;
  color: var(--text-muted);
  line-height: 1.75;
  padding-bottom: 28px;
  margin-bottom: 32px;
  border-bottom: 1px solid var(--border);
}

.article-prose {
  color: var(--text-body);
  font-size: 0.9375rem;
  line-height: 1.9;
}

.article-prose p {
  margin-bottom: 20px;
}

.article-prose h2 {
  font-size: 1.05rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text);
  margin: 40px 0 18px;
  padding-bottom: 10px;
  border-bottom: 1px solid var(--border);
}

.article-prose h3 {
  font-size: 0.975rem;
  font-weight: 600;
  color: var(--text);
  margin: 28px 0 12px;
}

.article-prose ul,
.article-prose ol {
  margin: 0 0 22px;
  padding-left: 22px;
}

.article-prose li {
  margin-bottom: 10px;
}

.article-prose strong {
  color: var(--text);
  font-weight: 700;
}

.article-prose a {
  color: var(--accent-text);
  font-weight: 500;
  text-decoration: underline;
  text-decoration-color: var(--border-strong);
  text-underline-offset: 3px;
  transition: text-decoration-color 0.2s;
}

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

.article-prose :not(pre) > code {
  background: var(--surface);
  border: 1px solid var(--border);
  padding: 2px 6px;
  font-size: 0.875em;
  color: var(--text);
}

.prose-code {
  background: var(--bg-depth);
  border: 1px solid var(--border);
  padding: 18px 20px;
  overflow-x: auto;
  margin: 0 0 24px;
  font-size: 0.85rem;
  line-height: 1.65;
  color: var(--text-body);
}

.article-prose blockquote {
  margin: 0 0 24px;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-left: 2px solid var(--cursor-color);
  background: var(--accent-bg);
  color: var(--text-body);
}

.article-footer-nav {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
}

/* ==========================================================================
   CMS Studio Page (studio.html -- Local Noodle IDE)
   ========================================================================== */

.studio-badge {
  font-size: 0.625rem;
  padding: 2px 6px;
  background: var(--accent-bg);
  border: 1px solid var(--accent-border);
  color: var(--accent-text);
  letter-spacing: 0.1em;
}

.studio-main {
  flex-grow: 1;
  padding: 32px 24px 64px;
  background-image: radial-gradient(var(--dot-color) 1px, transparent 0);
  background-size: 20px 20px;
}

.studio-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
}

@media (min-width: 1100px) {
  .studio-layout {
    grid-template-columns: 260px 1.2fr 1fr;
  }
}

.studio-sidebar,
.studio-editor,
.studio-preview {
  background: var(--bg);
  padding: 24px;
}

.studio-sidebar-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 18px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--grid-line);
}

.studio-post-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.studio-post-item {
  padding: 10px 12px;
  border: 1px solid var(--border);
  background: var(--surface);
  cursor: pointer;
  transition: border-color 0.15s;
}

.studio-post-item:hover {
  border-color: var(--border-strong);
}

.studio-post-item-title {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 4px;
}

.studio-post-item-meta {
  font-size: 0.6875rem;
  color: var(--text-dim);
}

.studio-form-row,
.studio-field {
  margin-bottom: 16px;
}

.studio-form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 640px) {
  .studio-form-grid {
    grid-template-columns: 1fr 1fr 140px;
  }
}

.studio-field label {
  display: block;
  font-size: 0.6875rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  margin-bottom: 6px;
}

.studio-field input,
.studio-field select,
.studio-field textarea {
  width: 100%;
  background: var(--bg-depth);
  border: 1px solid var(--border);
  padding: 10px 12px;
  color: var(--text);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.6;
}

.studio-field input:focus,
.studio-field select:focus,
.studio-field textarea:focus {
  outline: 1px solid var(--cursor-color);
  border-color: var(--cursor-color);
}

.editor-toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.toolbar-hint {
  font-size: 0.6875rem;
  color: var(--text-dim);
}

.studio-actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.studio-status {
  font-size: 0.75rem;
  color: var(--accent-text);
}

.preview-title {
  font-size: 1.35rem;
  margin: 14px 0 8px;
}

.preview-summary {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 20px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--border);
}

/* ==========================================================================
   Animations & Reduced Motion
   ========================================================================== */

@keyframes blink {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0;
  }
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero-anim-1 {
  animation: fadeUp 0.55s ease forwards;
}

.hero-anim-2 {
  animation: fadeUp 0.55s 0.08s ease forwards;
  opacity: 0;
}

.hero-anim-3 {
  animation: fadeUp 0.55s 0.16s ease forwards;
  opacity: 0;
}

.hero-anim-4 {
  animation: fadeUp 0.55s 0.28s ease forwards;
  opacity: 0;
}

.hero-anim-5 {
  animation: fadeUp 0.55s 0.38s ease forwards;
  opacity: 0;
}

.hero-anim-6 {
  animation: fadeUp 0.55s 0.48s ease forwards;
  opacity: 0;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }

  .hero-anim-1,
  .hero-anim-2,
  .hero-anim-3,
  .hero-anim-4,
  .hero-anim-5,
  .hero-anim-6 {
    animation: none;
    opacity: 1;
  }
}