:root {
  --bg: #f4efe6;
  --bg-soft: #fbf8f2;
  --panel: rgba(255, 255, 255, 0.82);
  --panel-strong: rgba(255, 255, 255, 0.94);
  --panel-hover: rgba(255, 255, 255, 0.98);
  --ink: #191611;
  --muted: #6f685d;
  --line: rgba(25, 22, 17, 0.1);
  --accent: #b26b2f;
  --signal: #1f8f67;
  --shadow: 0 18px 50px rgba(45, 32, 18, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: Georgia, "Source Han Serif SC", "Noto Serif SC", serif;
  background:
    radial-gradient(circle at top left, rgba(178, 107, 47, 0.1), transparent 22%),
    linear-gradient(180deg, #f8f4ed 0%, var(--bg) 56%, #eee6da 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.22;
  background:
    linear-gradient(rgba(25, 22, 17, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(25, 22, 17, 0.04) 1px, transparent 1px);
  background-size: 36px 36px;
  mask-image: linear-gradient(to bottom, rgba(0, 0, 0, 0.65), transparent 92%);
}

.site-shell {
  position: relative;
  width: min(980px, calc(100% - 28px));
  margin: 0 auto;
  padding: 22px 0 44px;
}

.topbar,
.module-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.brand,
.backlink {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.98rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Cascadia Code", Consolas, monospace;
}

.topbar-note,
.module-top span,
.module-intro,
.entry-card p,
.module-card p,
.link-list a small,
.footer {
  color: var(--muted);
}

.hero-minimal {
  padding: 12vh 0 14vh;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--signal);
  font-size: 0.85rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-family: "Cascadia Code", Consolas, monospace;
}

.hero-minimal h1,
.module-main h1 {
  margin: 0;
  line-height: 0.96;
  letter-spacing: -0.06em;
}

.hero-minimal h1 {
  max-width: 10ch;
  font-size: clamp(3rem, 8vw, 6rem);
}

.lead {
  max-width: 46ch;
  margin: 16px 0 0;
  font-size: 1.04rem;
  line-height: 1.85;
  color: var(--muted);
}

.entry-grid,
.module-grid {
  display: grid;
  gap: 14px;
  margin-top: 34px;
}

.entry-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.entry-card,
.module-card,
.link-list a {
  display: block;
  text-decoration: none;
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
  backdrop-filter: blur(8px);
}

.entry-card,
.module-card {
  padding: 20px;
}

.private-card {
  position: relative;
  border-style: dashed;
}

.private-card::after {
  content: "Private";
  position: absolute;
  top: 18px;
  right: 18px;
  font-size: 0.74rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  font-family: "Cascadia Code", Consolas, monospace;
}

.entry-card:hover,
.module-card:hover,
.link-list a:hover {
  transform: translateY(-2px);
  border-color: rgba(31, 143, 103, 0.22);
  background: var(--panel-hover);
}

.entry-label,
.module-card span,
.link-list a strong,
.meta-chip {
  display: inline-block;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Cascadia Code", Consolas, monospace;
}

.entry-card strong,
.module-card strong,
.link-list a strong {
  display: block;
  margin-top: 8px;
  font-size: 1.3rem;
  letter-spacing: -0.03em;
  font-family: Georgia, "Source Han Serif SC", "Noto Serif SC", serif;
}

.entry-card p,
.module-card p {
  margin: 10px 0 0;
  line-height: 1.8;
  font-size: 0.95rem;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding-top: 18px;
  border-top: 1px solid rgba(25, 22, 17, 0.08);
  font-size: 0.92rem;
}

.module-main {
  padding: 64px 0 32px;
}

.module-main h1 {
  font-size: clamp(2.6rem, 6vw, 4.6rem);
}

.module-intro {
  max-width: 54ch;
  margin: 16px 0 0;
  line-height: 1.85;
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}

.meta-chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.58);
}

.module-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.link-list {
  display: grid;
  gap: 12px;
  margin-top: 28px;
}

.link-list a {
  padding: 18px 20px;
}

.link-list a small {
  display: block;
  margin-top: 8px;
  font-size: 0.94rem;
  line-height: 1.7;
}

.studio-shell {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 18px;
  margin-top: 28px;
}

.studio-panel,
.studio-result {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 22px;
}

.studio-panel h2,
.studio-result h2 {
  margin: 0 0 10px;
  font-size: 1rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-family: "Cascadia Code", Consolas, monospace;
  color: var(--muted);
}

.studio-status {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
  color: var(--muted);
  font-size: 0.94rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #b3a999;
}

.status-dot.ok {
  background: var(--signal);
  box-shadow: 0 0 0 6px rgba(31, 143, 103, 0.12);
}

.status-dot.warn {
  background: var(--accent);
  box-shadow: 0 0 0 6px rgba(178, 107, 47, 0.12);
}

.studio-form {
  display: grid;
  gap: 14px;
}

.studio-form label {
  display: grid;
  gap: 8px;
  color: var(--ink);
  font-size: 0.94rem;
}

.studio-form select,
.studio-form textarea,
.studio-form input,
.studio-form button,
.copy-button {
  font: inherit;
}

.studio-form select,
.studio-form textarea,
.studio-form input {
  width: 100%;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(25, 22, 17, 0.1);
  border-radius: 16px;
  padding: 14px 16px;
  outline: none;
}

.studio-form select:focus,
.studio-form textarea:focus,
.studio-form input:focus {
  border-color: rgba(31, 143, 103, 0.28);
}

.studio-form textarea {
  min-height: 180px;
  resize: vertical;
  line-height: 1.8;
}

.studio-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.preset-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.preset-button,
.submit-button,
.copy-button {
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 12px 16px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--ink);
  cursor: pointer;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.preset-button:hover,
.submit-button:hover,
.copy-button:hover {
  transform: translateY(-1px);
  border-color: rgba(31, 143, 103, 0.26);
  background: #fff;
}

.submit-button {
  justify-self: start;
  min-width: 140px;
}

.studio-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.studio-result pre {
  margin: 16px 0 0;
  min-height: 360px;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.85;
  color: var(--ink);
  font-family: "Cascadia Code", Consolas, monospace;
}

.result-placeholder {
  color: var(--muted);
}

.editable-highlight {
  outline: 1px dashed rgba(31, 143, 103, 0.28);
  outline-offset: 6px;
  cursor: text;
}

.editable-active {
  outline: 2px solid rgba(178, 107, 47, 0.38);
  outline-offset: 6px;
  background: rgba(255, 255, 255, 0.68);
}

.site-ai-toggle {
  position: fixed;
  right: 18px;
  bottom: 18px;
  z-index: 90;
  border: 1px solid rgba(25, 22, 17, 0.1);
  border-radius: 999px;
  padding: 10px 14px;
  background: rgba(255, 255, 255, 0.95);
  color: var(--ink);
  box-shadow: var(--shadow);
  cursor: pointer;
  font: inherit;
}

.site-ai-panel {
  position: fixed;
  right: 18px;
  bottom: 66px;
  width: min(360px, calc(100vw - 24px));
  max-height: min(78vh, 720px);
  overflow: auto;
  z-index: 100;
  display: none;
  flex-direction: column;
  gap: 12px;
  padding: 14px;
  border: 1px solid rgba(25, 22, 17, 0.1);
  border-radius: 24px;
  background: rgba(251, 248, 242, 0.96);
  box-shadow: 0 24px 80px rgba(45, 32, 18, 0.12);
  backdrop-filter: blur(18px);
}

.site-ai-panel.open {
  display: flex;
}

.site-ai-head,
.site-ai-row,
.site-ai-result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.site-ai-head strong {
  font-size: 1rem;
}

.site-ai-head button,
.site-ai-panel button,
.site-ai-panel input,
.site-ai-panel textarea {
  font: inherit;
}

.site-ai-close,
.site-ai-action,
.site-ai-copy,
.site-ai-apply,
.site-ai-save,
.site-ai-auth,
.site-ai-run {
  border: 1px solid rgba(25, 22, 17, 0.1);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--ink);
  cursor: pointer;
  padding: 9px 13px;
}

.site-ai-run {
  background: #fff;
  border-color: rgba(31, 143, 103, 0.24);
}

.site-ai-head small,
.site-ai-help,
.site-ai-authline,
.site-ai-selection,
.site-ai-save-note {
  color: var(--muted);
  line-height: 1.65;
  font-size: 0.92rem;
}

.site-ai-authbox,
.site-ai-workbox,
.site-ai-resultbox {
  border: 1px solid rgba(25, 22, 17, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.74);
  padding: 14px;
}

.site-ai-authgrid,
.site-ai-form {
  display: grid;
  gap: 10px;
}

.site-ai-inline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.site-ai-panel input,
.site-ai-panel textarea {
  width: 100%;
  color: var(--ink);
  background: rgba(255, 255, 255, 0.94);
  border: 1px solid rgba(25, 22, 17, 0.1);
  border-radius: 14px;
  padding: 12px 14px;
  outline: none;
}

.site-ai-panel textarea {
  min-height: 92px;
  resize: vertical;
  line-height: 1.7;
}

.site-ai-selection {
  min-height: 52px;
  padding: 10px 12px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px dashed rgba(25, 22, 17, 0.1);
}

.site-ai-result {
  min-height: 140px;
  max-height: 24vh;
  overflow: auto;
  white-space: pre-wrap;
  word-break: break-word;
  line-height: 1.75;
  font-family: "Cascadia Code", Consolas, monospace;
}

@media (max-width: 840px) {
  .entry-grid,
  .module-grid,
  .footer,
  .topbar,
  .module-top {
    grid-template-columns: 1fr;
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 720px) {
  .site-shell {
    width: min(100% - 18px, 980px);
  }

  .entry-grid,
  .module-grid,
  .studio-shell,
  .studio-row {
    grid-template-columns: 1fr;
  }

  .hero-minimal {
    padding: 10vh 0 12vh;
  }

  .site-ai-panel {
    left: 10px;
    right: 10px;
    bottom: 64px;
    width: auto;
    max-height: calc(100vh - 80px);
  }

  .site-ai-inline {
    grid-template-columns: 1fr;
  }
}