:root,
[data-theme="light"] {
  /* Type scale */
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.8125rem);
  --text-sm: clamp(0.875rem, 0.83rem + 0.22vw, 1rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.125rem);
  --text-lg: clamp(1.2rem, 1.05rem + 0.7vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.25rem + 1.2vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.4rem + 2.6vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 5vw, 4.75rem);
  --text-hero: clamp(2.8rem, 0.8rem + 7vw, 5.5rem);
  /* Fonts */
  --font-display: "Source Serif 4", "Georgia", serif;
  --font-body: "DM Sans", "Helvetica Neue", sans-serif;

  --color-bg: #f4f1ea;
  --color-surface: #fbfaf6;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ece7db;
  --color-surface-offset-2: #e4dec9;
  --color-divider: #d3ccba;
  --color-border: #b8af97;
  --color-text: #1a1a1a;
  --color-text-muted: #5a554a;
  --color-text-faint: #8a8473;
  --color-text-inverse: #f4f1ea;
  --color-accent: #0b4a6f;
  --color-accent-hover: #083a56;
  --color-accent-soft: #d6e6f0;
  --color-tag-bg: #1a1a1a;
  --color-tag-fg: #f4f1ea;
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --shadow-sm: 0 1px 2px rgba(20, 18, 14, 0.06);
  --shadow-md: 0 6px 20px rgba(20, 18, 14, 0.08);
  --content-narrow: 640px;
  --content-default: 1100px;
  --content-wide: 1240px;
}

[data-theme="dark"] {
  --color-bg: #131312;
  --color-surface: #1c1b18;
  --color-surface-2: #211f1b;
  --color-surface-offset: #1a1916;
  --color-surface-offset-2: #26241f;
  --color-divider: #2c2a25;
  --color-border: #3a3731;
  --color-text: #e8e4d8;
  --color-text-muted: #9a9382;
  --color-text-faint: #6a6555;
  --color-text-inverse: #131312;
  --color-accent: #6fb3d6;
  --color-accent-hover: #8fc3e0;
  --color-accent-soft: #1e2c34;
  --color-tag-bg: #e8e4d8;
  --color-tag-fg: #131312;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
  --shadow-md: 0 6px 20px rgba(0, 0, 0, 0.4);
}

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

html {
  -webkit-text-size-adjust: none;
  text-size-adjust: none;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
  scroll-padding-top: 80px;
}

body {
  min-height: 100dvh;
  line-height: 1.65;
  font-family: var(--font-body, sans-serif);
  font-size: var(--text-base);
  color: var(--color-text);
  background-color: var(--color-bg);
}

img,
picture,
svg {
  display: block;
  max-width: 100%;
  height: auto;
}

ul[role="list"],
ol[role="list"] {
  list-style: none;
}

input,
button,
textarea,
select {
  font: inherit;
  color: inherit;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display, serif);
  text-wrap: balance;
  line-height: 1.12;
  letter-spacing: -0.01em;
}

p,
li {
  text-wrap: pretty;
  max-width: 72ch;
}

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

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

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

button {
  cursor: pointer;
  background: none;
  border: none;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--transition-interactive);
}

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

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

/* ===== Layout ===== */
.container {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: 20px;
}

.container-wide {
  max-width: var(--content-wide);
}

/* ===== Masthead ===== */
.masthead {
  border-bottom: 2px solid var(--color-text);
  background: var(--color-bg);
}

.masthead-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding-block: 10px;
  font-size: var(--text-xs);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-text-muted);
}

.masthead-top .date {
  font-weight: 500;
}

.masthead-utilities {
  display: flex;
  align-items: center;
  gap: 14px;
}

.masthead-name {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding-block: 18px 14px;
}

.masthead-logo {
  flex-shrink: 0;
  color: var(--color-text);
}

.masthead-title {
  font-family: var(--font-display, serif);
  font-size: var(--text-2xl);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1;
  text-align: center;
}

.masthead-subtitle {
  text-align: center;
  font-size: var(--text-xs);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  padding-bottom: 14px;
}

.masthead-nav {
  border-top: 1px solid var(--color-divider);
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 4px 28px;
  padding-block: 12px;
}

.masthead-nav a {
  font-size: var(--text-sm);
  font-weight: 500;
  letter-spacing: 0.02em;
  padding-block: 4px;
  position: relative;
}

.masthead-nav a.active::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -2px;
  height: 2px;
  background: var(--color-accent);
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-full, 9999px);
  color: var(--color-text-muted);
  border: 1px solid var(--color-border);
}

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

/* ===== Frontpage grid ===== */
.frontpage {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
  padding-block: 0;
}

.lead-story {
  grid-column: 1 / -1;
  border-bottom: 1px solid var(--color-divider);
  padding-block: 28px;
}

.lead-story .article-tag {
  margin-bottom: 14px;
}

.lead-headline {
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: 14px;
  max-width: 18ch;
}

.lead-deck {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-bottom: 22px;
  font-family: var(--font-body);
  line-height: 1.5;
}

.lead-image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-bottom: 18px;
  background: var(--color-surface-offset);
}

.byline {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.byline .dot {
  width: 3px;
  height: 3px;
  border-radius: 50%;
  background: var(--color-text-faint);
}

/* Secondary grid */
.secondary-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0;
}

.story-card {
  border-bottom: 1px solid var(--color-divider);
  padding-block: 24px;
}

.story-card .article-tag {
  margin-bottom: 10px;
}

.story-card h3 {
  font-size: var(--text-xl);
  margin-bottom: 8px;
}

.story-card .deck {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: 12px;
}

.story-card img {
  width: 100%;
  aspect-ratio: 16 / 10;
  object-fit: cover;
  border-radius: var(--radius-sm);
  margin-top: 14px;
  background: var(--color-surface-offset);
}

/* Article tag */
.article-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.article-tag::before {
  content: "";
  width: 18px;
  height: 2px;
  background: var(--color-accent);
}

/* ===== Section header ===== */
.section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  padding-block: 36px 18px;
  border-bottom: 2px solid var(--color-text);
  margin-bottom: 8px;
}

.section-head h2 {
  font-size: var(--text-xl);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.02em;
}

.section-head .more {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-weight: 600;
  color: var(--color-accent);
}

/* ===== Category list rows ===== */
.article-list {
  display: flex;
  flex-direction: column;
}

.list-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 6px;
  padding-block: 18px;
  border-bottom: 1px solid var(--color-divider);
}

.list-row .row-meta {
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  display: flex;
  gap: 8px;
  align-items: center;
}

.list-row h3 {
  font-size: var(--text-lg);
  font-weight: 600;
}

.list-row .deck {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* ===== Filters ===== */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  padding-block: 24px 8px;
}

.filter-btn {
  font-size: var(--text-sm);
  font-weight: 500;
  padding: 7px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-full, 9999px);
  color: var(--color-text-muted);
  letter-spacing: 0.01em;
}

.filter-btn:hover {
  color: var(--color-text);
  border-color: var(--color-text);
}

.filter-btn.active {
  background: var(--color-text);
  color: var(--color-bg);
  border-color: var(--color-text);
}

/* ===== Page intro ===== */
.page-intro {
  padding-block: 40px 8px;
  border-bottom: 2px solid var(--color-text);
  margin-bottom: 8px;
}

.page-intro h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: 10px;
}

.page-intro p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 65ch;
}

/* ===== Pull quote ===== */
.pullquote {
  border-top: 2px solid var(--color-text);
  border-bottom: 2px solid var(--color-text);
  padding-block: 24px;
  margin-block: 36px;
  text-align: center;
}

.pullquote blockquote {
  font-family: var(--font-display, serif);
  font-size: var(--text-xl);
  font-weight: 500;
  line-height: 1.3;
  max-width: 30ch;
  margin-inline: auto;
}

.pullquote cite {
  display: block;
  margin-top: 12px;
  font-size: var(--text-xs);
  font-style: normal;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}

/* ===== Newsletter / contact ===== */
.contact-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 36px;
  padding-block: 40px;
}

.contact-intro h1 {
  font-size: var(--text-2xl);
  font-weight: 700;
  margin-bottom: 14px;
}

.contact-intro p {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  margin-bottom: 16px;
}

.contact-details {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.9;
}

.contact-details strong {
  color: var(--color-text);
  display: block;
  margin-top: 14px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-size: var(--text-xs);
}

.newsletter-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.newsletter-card h2 {
  font-size: var(--text-xl);
  margin-bottom: 8px;
}

.newsletter-card .nl-deck {
  font-size: var(--text-base);
  color: var(--color-text-muted);
  margin-bottom: 22px;
}

.demo-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-accent);
  margin-bottom: 16px;
}

.demo-badge::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
}

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

.form-field label {
  display: block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}

.form-field input,
.form-field textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-surface-2);
  color: var(--color-text);
  font-size: var(--text-base);
}

.form-field input:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-soft);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 600;
  letter-spacing: 0.02em;
  background: var(--color-text);
  color: var(--color-bg);
  border: 1px solid var(--color-text);
  margin-top: 6px;
}

.btn:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-text-inverse);
}

.form-success {
  display: none;
  margin-top: 18px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  background: var(--color-accent-soft);
  color: var(--color-accent);
  font-size: var(--text-sm);
  font-weight: 500;
  border: 1px solid var(--color-accent);
}

.form-success.show {
  display: block;
}

/* ===== Footer ===== */
.footer {
  border-top: 2px solid var(--color-text);
  margin-top: 48px;
  padding-block: 36px 28px;
  background: var(--color-surface-offset);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 28px;
  margin-bottom: 28px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.footer-brand .footer-name {
  font-family: var(--font-display, serif);
  font-size: var(--text-lg);
  font-weight: 700;
}

.footer-tagline {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  max-width: 40ch;
}

.footer-col h4 {
  font-family: var(--font-body);
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 12px;
  color: var(--color-text-muted);
}

.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.footer-col a {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

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

.footer-bottom {
  border-top: 1px solid var(--color-divider);
  padding-top: 20px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px 20px;
  justify-content: space-between;
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

/* ===== Responsive ===== */
@media (min-width: 640px) {
  .secondary-grid {
    grid-template-columns: 1fr 1fr;
    gap: 0 32px;
  }

  .footer-grid {
    grid-template-columns: 1.4fr 1fr 1fr;
  }

  .contact-grid {
    grid-template-columns: 1fr 1fr;
    align-items: start;
  }
}

@media (min-width: 900px) {
  .secondary-grid {
    grid-template-columns: 1fr 1fr 1fr;
  }

  .lead-headline {
    font-size: var(--text-hero);
  }

  .masthead-title {
    font-size: var(--text-3xl);
  }
}

@media (max-width: 639px) {
  .masthead-nav {
    gap: 4px 18px;
  }

  .masthead-top {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
}

/* Article body (for full article page if needed) */
.prose {
  font-size: var(--text-lg);
  line-height: 1.7;
  max-width: 65ch;
}

.prose p {
  margin-bottom: 18px;
}

.prose h2 {
  font-size: var(--text-xl);
  margin-top: 36px;
  margin-bottom: 12px;
}