/* ==========================================================
   The Common Tone - Lantern Page Styles
   Plain CSS, no framework, no build step.
   ========================================================== */

/* Design tokens */
:root {
  --color-paper: #f7f1e7;
  --color-paper-soft: #fbf7ef;
  --color-ink: #181617;
  --color-muted: #5e5a54;
  --color-line: #d8ccb9;
  --color-obsidian: #1a1a2e;
  --color-burgundy: #7f2431;
  --color-green: #2f4f43;
  --color-gold: #b8913e;
  --color-blue: #263d5c;
  --color-white: #fff;
  --color-header-surface: rgba(247, 241, 231, 0.94);
  --color-nav-active: rgba(127, 36, 49, 0.09);
  --color-card-surface: rgba(255, 252, 246, 0.76);
  --color-card-soft: rgba(255, 252, 246, 0.58);
  --color-footer-text: rgba(247, 241, 231, 0.84);
  --color-focus-ring: rgba(127, 36, 49, 0.55);
  --shadow-soft: 0 24px 60px rgba(26, 26, 46, 0.12);
  --radius-small: 6px;
  --space-xs: 0.5rem;
  --space-sm: 0.75rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2.5rem;
  --space-2xl: 4rem;
  --container: 1120px;
  --container-narrow: 760px;
  --font-heading: Georgia, "Times New Roman", serif;
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

/* Base page setup */
* {
  box-sizing: border-box;
}

html {
  color: var(--color-ink);
  background: var(--color-paper);
  font-family: var(--font-body);
  line-height: 1.6;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(rgba(255, 255, 255, 0.24) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.18) 1px, transparent 1px),
    var(--color-paper);
  background-size: 32px 32px;
}

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

a {
  color: var(--color-burgundy);
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--color-blue);
}

a:focus-visible {
  outline: 3px solid var(--color-focus-ring);
  outline-offset: 3px;
}

p {
  margin: 0 0 var(--space-md);
}

h1,
h2,
h3 {
  margin: 0 0 var(--space-md);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.08;
}

h1 {
  max-width: 12ch;
  font-size: clamp(2.9rem, 6vw, 4.6rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3.2rem);
}

h3 {
  font-size: 1.5rem;
}

blockquote {
  margin: var(--space-xl) 0 0;
  padding: var(--space-lg);
  border-left: 5px solid var(--color-gold);
  background: var(--color-paper-soft);
  box-shadow: var(--shadow-soft);
}

blockquote p {
  margin: 0;
  font-family: var(--font-heading);
  font-size: 1.25rem;
}

/* Reusable layout helpers */
.container {
  width: min(100% - 2rem, var(--container));
  margin: 0 auto;
}

.narrow-container,
.text-page {
  max-width: var(--container-narrow);
}

.skip-link {
  position: absolute;
  top: -120px;
  left: var(--space-md);
  z-index: 20;
  padding: var(--space-sm) var(--space-md);
  background: var(--color-obsidian);
  color: var(--color-white);
}

.skip-link:focus {
  top: var(--space-md);
}

/* Header and navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid rgba(26, 26, 46, 0.12);
  background: var(--color-header-surface);
  backdrop-filter: blur(12px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  min-height: 74px;
}

.brand-link {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: var(--space-sm);
  color: var(--color-ink);
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 700;
  text-decoration: none;
}

.brand-mark {
  width: 38px;
  height: 38px;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: var(--space-xs);
}

.site-nav a {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0 var(--space-sm);
  border-radius: var(--radius-small);
  color: var(--color-muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  background: var(--color-nav-active);
  color: var(--color-burgundy);
}

/* Hero and main landing page sections */
.hero-section {
  padding: clamp(2rem, 5vw, 3.5rem) 0 var(--space-lg);
  border-bottom: 1px solid var(--color-line);
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  align-items: center;
  gap: clamp(2rem, 6vw, 5rem);
}

.eyebrow {
  margin-bottom: var(--space-sm);
  color: var(--color-burgundy);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.subtitle {
  max-width: 680px;
  color: var(--color-blue);
  font-family: var(--font-heading);
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  line-height: 1.25;
}

.mission {
  max-width: 720px;
  color: var(--color-muted);
  font-size: 1.12rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
  margin-top: var(--space-lg);
}

.button {
  display: inline-flex;
  min-height: 48px;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.15rem;
  border: 1px solid var(--color-burgundy);
  border-radius: var(--radius-small);
  font-weight: 700;
  text-decoration: none;
}

.primary-button {
  background: var(--color-burgundy);
  color: var(--color-white);
}

.primary-button:hover {
  background: var(--color-obsidian);
  color: var(--color-white);
}

.secondary-button {
  background: rgba(255, 255, 255, 0.42);
  color: var(--color-burgundy);
}

.lantern-panel {
  position: relative;
  padding: clamp(1.5rem, 4vw, 2.5rem);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background:
    radial-gradient(circle at top, rgba(184, 145, 62, 0.22), transparent 44%),
    var(--color-paper-soft);
  box-shadow: var(--shadow-soft);
  text-align: center;
}

.lantern-panel::before,
.lantern-panel::after {
  position: absolute;
  left: 18px;
  right: 18px;
  height: 1px;
  background: var(--color-line);
  content: "";
}

.lantern-panel::before {
  top: 14px;
}

.lantern-panel::after {
  bottom: 14px;
}

.lantern-image {
  width: min(220px, 70%);
  margin-bottom: var(--space-lg);
}

.lantern-panel p {
  margin: 0 auto;
  max-width: 24ch;
  color: var(--color-green);
  font-family: var(--font-heading);
  font-size: 1.25rem;
}

.intro-section,
.closing-section,
.cards-section,
.content-section {
  padding: var(--space-2xl) 0;
}

.intro-section {
  background: var(--color-paper-soft);
}

.intro-section p,
.closing-section p {
  color: var(--color-muted);
  font-size: 1.12rem;
}

.section-heading {
  max-width: 760px;
  margin: 0 auto var(--space-xl);
  text-align: center;
}

.left-heading {
  margin-left: 0;
  text-align: left;
}

/* Cards and panels */
.card-grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: var(--space-md);
}

.project-card,
.quiet-panel,
.notice-box {
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-card-surface);
  box-shadow: 0 12px 32px rgba(26, 26, 46, 0.07);
}

.project-card {
  display: flex;
  min-height: 300px;
  flex-direction: column;
  padding: var(--space-lg);
}

.project-card h3 {
  color: var(--color-obsidian);
}

.project-card p {
  color: var(--color-muted);
}

.project-card a {
  margin-top: auto;
  font-weight: 700;
}

.card-kicker {
  margin-bottom: var(--space-xs);
  color: var(--color-green);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.quiet-panel,
.notice-box {
  padding: var(--space-xl);
}

.accent-panel {
  background: var(--color-obsidian);
  color: var(--color-paper);
}

.accent-panel p {
  color: rgba(247, 241, 231, 0.82);
}

/* Interior pages */
.page-main {
  min-height: 68vh;
}

.page-hero {
  padding: var(--space-2xl) 0;
  border-bottom: 1px solid var(--color-line);
  background: var(--color-paper-soft);
}

.page-hero h1 {
  max-width: 14ch;
  font-size: clamp(2.7rem, 6vw, 4.8rem);
}

.text-page h2 {
  margin-top: var(--space-xl);
}

.text-page h2:first-child {
  margin-top: 0;
}

.two-column {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-lg);
}

.simple-list {
  margin: var(--space-lg) 0 0;
  padding-left: 1.15rem;
}

.simple-list li + li {
  margin-top: var(--space-xs);
}

.resource-list {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  border-top: 1px solid var(--color-line);
  border-left: 1px solid var(--color-line);
}

.resource-list article {
  min-height: 220px;
  padding: var(--space-lg);
  border-right: 1px solid var(--color-line);
  border-bottom: 1px solid var(--color-line);
  background: var(--color-card-soft);
}

.resource-list h2 {
  font-size: 1.55rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.tag-cloud span {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  padding: 0.65rem 0.95rem;
  border: 1px solid var(--color-line);
  border-radius: var(--radius-small);
  background: var(--color-paper-soft);
  color: var(--color-green);
  font-weight: 700;
}

.notice-box {
  margin-top: var(--space-xl);
  border-color: rgba(127, 36, 49, 0.28);
}

/* Footer */
.site-footer {
  padding: var(--space-xl) 0;
  border-top: 1px solid var(--color-line);
  background: var(--color-obsidian);
  color: var(--color-footer-text);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: var(--space-md);
}

.site-footer p {
  margin: 0;
}

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

/* Responsive adjustments */
@media (max-width: 980px) {
  .hero-grid,
  .two-column {
    grid-template-columns: 1fr;
  }

  .card-grid,
  .resource-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .lantern-panel {
    max-width: 520px;
  }
}

@media (max-width: 720px) {
  .header-inner {
    align-items: flex-start;
    flex-direction: column;
    padding: var(--space-sm) 0;
  }

  .site-nav {
    justify-content: flex-start;
  }

  .hero-section {
    padding-top: var(--space-xl);
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .button {
    width: 100%;
  }

  .card-grid,
  .resource-list {
    grid-template-columns: 1fr;
  }

  .project-card,
  .resource-list article {
    min-height: auto;
  }
}