/* ============================================================
   Saker Index — Design System
   Institutional research aesthetic
   Palette: deep navy, ivory paper, restrained teal
   Spirit: Carbon clarity (flat chrome, hairlines, type scale)
   Brand: navy / teal / ivory from design refs — not IBM Blue
   ============================================================ */

:root {
  --ink: #0f1c2e;
  --ink-soft: #1a2d42;
  --ink-muted: #5c6b7a;
  --ink-faint: #8a96a3;
  --paper: #f7f5f0;
  --paper-dark: #ebe7df;
  --paper-line: #ddd8ce;
  --white: #ffffff;
  --accent: #2a6f7c;
  --accent-hover: #1f5a65;
  --accent-pale: #e8f1f3;
  --brass: #9a8055;
  --border: #ddd8ce;
  --border-strong: #c8c0b4;
  --focus: #2a6f7c;
  --table-stripe: transparent;

  --font-serif: "Source Serif 4", "Source Serif Pro", Georgia, "Times New Roman", serif;
  --font-sans: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --space-xs: 0.25rem;
  --space-sm: 0.5rem;
  --space-md: 1rem;
  --space-lg: 1.5rem;
  --space-xl: 2rem;
  --space-2xl: 3rem;
  --space-3xl: 4.5rem;
  --space-4xl: 6.5rem;
  --max-width: 1120px;
  --prose-width: 65ch;
  --radius: 0;
  --radius-sm: 2px;

  --ease: cubic-bezier(0.25, 0.1, 0.25, 1);
  --duration: 0.2s;
  --focus-ring: 2px solid var(--focus);
  --focus-offset: 3px;
}

/* Reset / Base */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  letter-spacing: 0.01em;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

main { flex: 1; }

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

a {
  color: var(--accent);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
  touch-action: manipulation;
}

@media (prefers-reduced-motion: no-preference) {
  a { transition: color var(--duration) var(--ease); }
}

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

a:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

h1, h2, h3, h4 {
  font-family: var(--font-serif);
  font-weight: 600;
  line-height: 1.25;
  color: var(--ink);
  margin: 0 0 var(--space-md);
  letter-spacing: -0.015em;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.15rem, 5vw, 3.15rem);
  letter-spacing: -0.028em;
  line-height: 1.15;
  font-weight: 600;
}

h2 {
  font-size: clamp(1.45rem, 3vw, 1.9rem);
  letter-spacing: -0.02em;
  font-weight: 600;
}

h3 {
  font-size: clamp(1.1rem, 2.2vw, 1.28rem);
  letter-spacing: -0.01em;
}

p { margin: 0 0 var(--space-md); }
ul, ol { margin: 0 0 var(--space-md); padding-left: 1.25rem; }
li { margin-bottom: var(--space-sm); }

/* Skip link */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-md);
  background: var(--ink);
  color: var(--white);
  padding: var(--space-sm) var(--space-md);
  z-index: 1000;
  text-decoration: none;
  font-size: 0.875rem;
  touch-action: manipulation;
}

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

/* Layout */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.section {
  padding: var(--space-3xl) 0;
}

.section--tight { padding: var(--space-2xl) 0; }

.section--alt {
  background: var(--white);
}

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

.section--ink h2,
.section--ink h3 { color: var(--paper); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-md);
}

.lead {
  font-size: clamp(1.05rem, 1.8vw, 1.175rem);
  color: var(--ink-muted);
  max-width: 40rem;
  line-height: 1.75;
  margin-bottom: 0;
}

.text-center { text-align: center; }
.text-center .lead { margin-left: auto; margin-right: auto; }

.rule {
  display: block;
  width: 2.5rem;
  height: 1px;
  background: var(--accent);
  margin: var(--space-lg) 0;
  border: none;
}

.rule--center { margin-left: auto; margin-right: auto; }

.note-label {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-faint);
  border: 1px solid var(--border);
  padding: 0.2rem 0.5rem;
  background: var(--white);
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(247, 245, 240, 0.96);
  border-bottom: 1px solid var(--border);
}

@media (prefers-reduced-motion: no-preference) {
  .site-header {
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
  }
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 4.5rem;
  gap: var(--space-md);
}

.logo-link {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
  touch-action: manipulation;
}

.logo-link:hover { opacity: 0.88; }

.logo-link img,
.logo-link svg {
  height: 32px;
  width: auto;
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--border-strong);
  padding: 0.45rem 0.7rem;
  cursor: pointer;
  color: var(--ink);
  font-size: 0.8rem;
  font-family: var(--font-sans);
  font-weight: 500;
  letter-spacing: 0.02em;
  touch-action: manipulation;
  min-height: 44px;
}

.nav-toggle:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 0.1rem;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-list a {
  display: block;
  padding: 0.45rem 0.7rem;
  font-size: 0.8125rem;
  font-weight: 500;
  text-decoration: none;
  color: var(--ink-soft);
  letter-spacing: 0.02em;
  border-bottom: 2px solid transparent;
  touch-action: manipulation;
}

@media (prefers-reduced-motion: no-preference) {
  .nav-list a {
    transition: color var(--duration) var(--ease), border-color var(--duration) var(--ease);
  }
}

.nav-list a:hover {
  color: var(--ink);
}

.nav-list a[aria-current="page"] {
  color: var(--ink);
  font-weight: 600;
  border-bottom-color: var(--accent);
}

.nav-list a:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 2px;
}

.nav-cta { margin-left: var(--space-sm); }

.nav-cta .btn {
  border-bottom: none;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.7rem 1.35rem;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: 0.01em;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  touch-action: manipulation;
  min-height: 44px;
}

@media (prefers-reduced-motion: no-preference) {
  .btn {
    transition:
      background-color var(--duration) var(--ease),
      color var(--duration) var(--ease),
      border-color var(--duration) var(--ease);
  }
}

.btn:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

.btn--primary {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

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

.btn--accent {
  background: var(--accent);
  color: var(--white);
  border-color: var(--accent);
}

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

.btn--outline {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}

.btn--outline:hover {
  border-color: var(--ink);
  background: var(--white);
  color: var(--ink);
}

.btn--outline-light {
  background: transparent;
  color: var(--paper);
  border-color: rgba(247, 245, 240, 0.35);
}

.btn--outline-light:hover {
  background: rgba(247, 245, 240, 0.08);
  border-color: var(--paper);
  color: var(--white);
}

.btn--ghost {
  background: transparent;
  color: var(--accent);
  border-color: transparent;
  padding-left: 0;
  padding-right: 0;
  text-decoration: underline;
  text-underline-offset: 4px;
  font-weight: 500;
  min-height: auto;
}

.btn--ghost:hover { color: var(--accent-hover); }

.btn--lg {
  padding: 0.85rem 1.6rem;
  font-size: 0.925rem;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md) var(--space-xl);
  margin-top: var(--space-xl);
}

.link-secondary {
  font-size: 0.925rem;
  font-weight: 500;
  color: var(--accent);
  text-decoration: none;
  border-bottom: 1px solid var(--accent);
  padding-bottom: 1px;
  touch-action: manipulation;
}

.link-secondary:hover {
  color: var(--accent-hover);
  border-bottom-color: var(--accent-hover);
}

.link-secondary:focus-visible {
  outline: var(--focus-ring);
  outline-offset: var(--focus-offset);
}

/* Hero — asymmetric split matching ref */
.hero {
  padding: var(--space-4xl) 0 var(--space-3xl);
  background: var(--paper);
}

.hero-grid {
  display: grid;
  gap: var(--space-3xl);
  align-items: start;
}

.hero-content { max-width: 34rem; }

.hero h1 {
  margin-bottom: var(--space-lg);
  font-weight: 600;
}

.hero .lead {
  margin-bottom: var(--space-md);
  color: var(--ink-soft);
  max-width: 32rem;
}

.hero-tagline {
  font-family: var(--font-serif);
  font-size: clamp(1.05rem, 2vw, 1.2rem);
  color: var(--ink);
  margin-top: var(--space-3xl);
  margin-bottom: 0;
  letter-spacing: -0.01em;
}

.hero-meta {
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin-top: var(--space-lg);
}

/* Latest Rankings panel — open, not a nested card */
.hero-preview {
  padding-top: 0.25rem;
}

.hero-preview-label {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: var(--space-lg);
}

.preview-table {
  width: 100%;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

.preview-table thead th {
  font-size: 0.65rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  text-align: left;
  padding: 0 0 var(--space-md);
  border-bottom: 1px solid var(--border);
  font-family: var(--font-sans);
}

.preview-table thead th:last-child,
.preview-table tbody td:last-child {
  text-align: right;
}

.preview-table tbody td {
  padding: 1.05rem 0;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

.preview-table tbody tr:last-child td {
  border-bottom: none;
}

.preview-rank {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  width: 2.5rem;
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.preview-entity {
  padding-right: var(--space-md);
}

.preview-entity-name {
  display: block;
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.3;
}

.preview-entity-meta {
  display: block;
  font-family: var(--font-sans);
  font-size: 0.8rem;
  color: var(--ink-muted);
  margin-top: 0.2rem;
}

.preview-score {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  line-height: 1;
}

/* Feature rows — open layout, less card clutter */
.feature-rows {
  display: grid;
  gap: 0;
  margin-top: var(--space-2xl);
  border-top: 1px solid var(--border);
}

.feature-row {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid var(--border);
}

.feature-row-num {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.feature-row h3 { margin-bottom: var(--space-sm); }

.feature-row p {
  color: var(--ink-muted);
  font-size: 0.95rem;
  margin-bottom: 0;
  line-height: 1.65;
  max-width: 36rem;
}

/* Steps */
.steps {
  display: grid;
  gap: var(--space-xl);
  margin-top: var(--space-2xl);
}

.step {
  display: grid;
  gap: var(--space-md);
  align-items: start;
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.step-num {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.5rem;
  color: var(--accent);
  line-height: 1;
  font-variant-numeric: tabular-nums;
}

.step h3 { margin-bottom: var(--space-xs); }
.step p { color: var(--ink-muted); margin: 0; font-size: 0.925rem; }

/* Metrics */
.metrics {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-2xl);
}

.metric {
  text-align: left;
  padding: var(--space-lg) 0;
  border-top: 1px solid var(--border);
}

.metric-value {
  font-family: var(--font-serif);
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 600;
  color: var(--ink);
  line-height: 1.1;
  margin-bottom: var(--space-xs);
  font-variant-numeric: tabular-nums;
}

.metric-value .unit {
  font-size: 0.5em;
  color: var(--ink-muted);
  font-weight: 600;
  margin-left: 0.1em;
}

.metric-label {
  font-size: 0.8rem;
  color: var(--ink-muted);
  font-weight: 500;
}

/* Principles */
.principles {
  display: grid;
  gap: 0;
  margin-top: var(--space-2xl);
  list-style: none;
  padding: 0;
  margin-left: 0;
}

.principle {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-lg);
  align-items: start;
  padding: var(--space-lg) 0;
  border-bottom: 1px solid var(--border);
}

.principle:first-child { border-top: 1px solid var(--border); }

.principle-label {
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
  min-width: 7rem;
  padding-top: 0.2rem;
}

.principle h3 {
  font-size: 1.05rem;
  margin-bottom: 0.35rem;
}

.principle p {
  margin: 0;
  font-size: 0.925rem;
  color: var(--ink-muted);
}

/* CTA banner */
.cta-banner {
  text-align: left;
  padding: var(--space-2xl) var(--space-xl);
  background: var(--ink);
  color: var(--paper);
  border-top: 2px solid var(--accent);
}

.cta-banner h2 {
  color: var(--paper);
  margin-bottom: var(--space-md);
}

.cta-banner p {
  color: rgba(247, 245, 240, 0.72);
  max-width: 36rem;
  margin: 0 0 var(--space-xl);
  font-size: 0.975rem;
  line-height: 1.7;
}

.cta-banner .btn-group { margin-top: 0; }

/* Page hero */
.page-hero {
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: var(--paper);
}

.page-hero .lead { margin-top: var(--space-md); }

.page-hero .rule { background: var(--accent); }

/* Prose */
.prose { max-width: var(--prose-width); }

.prose h2 {
  margin-top: var(--space-2xl);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.prose h2:first-of-type {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.prose h3 { margin-top: var(--space-xl); }
.prose p, .prose li { color: var(--ink-soft); }
.prose strong { color: var(--ink); font-weight: 600; }

/* Split layout */
.split {
  display: grid;
  gap: var(--space-2xl);
  align-items: start;
}

/* Cards — used sparingly */
.cards {
  display: grid;
  gap: var(--space-lg);
  margin-top: var(--space-2xl);
}

.card {
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0 0;
}

.card--bordered {
  background: var(--white);
  border: 1px solid var(--border);
  padding: var(--space-xl);
}

.card-icon {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--accent);
  margin-bottom: var(--space-md);
  letter-spacing: 0.04em;
  font-variant-numeric: tabular-nums;
}

.card h3 { margin-bottom: var(--space-sm); }

.card p {
  color: var(--ink-muted);
  font-size: 0.925rem;
  margin-bottom: 0;
  line-height: 1.65;
}

.card-meta {
  font-size: 0.75rem;
  color: var(--ink-faint);
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

/* Methodology */
.method-block {
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0;
  margin-bottom: 0;
}

.method-block:first-child { border-top: none; padding-top: 0; }

.method-block h3 {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.method-block p,
.method-block li { color: var(--ink-soft); font-size: 0.95rem; }

.method-tag {
  font-family: var(--font-sans);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  background: var(--accent-pale);
  color: var(--accent);
  padding: 0.28rem 0.55rem;
  flex-shrink: 0;
}

.pillars {
  display: grid;
  gap: var(--space-md);
  margin-top: var(--space-lg);
}

.pillar {
  display: grid;
  grid-template-columns: auto 1fr;
  gap: var(--space-md);
  padding: var(--space-md) 0;
  border-bottom: 1px solid var(--border);
}

.pillar-weight {
  font-family: var(--font-serif);
  font-weight: 600;
  font-size: 1.15rem;
  color: var(--accent);
  min-width: 3rem;
  font-variant-numeric: tabular-nums;
}

.pillar h4 {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 0.25rem;
  letter-spacing: 0;
}

.pillar p {
  font-size: 0.85rem;
  color: var(--ink-muted);
  margin: 0;
}

/* Ranking filters — simple labeled selects (ref style) */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xl) var(--space-2xl);
  align-items: end;
  padding: 0;
  background: transparent;
  border: none;
  margin-bottom: var(--space-2xl);
}

.filter-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  min-width: 10rem;
}

.filter-group label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--ink-muted);
}

.filter-group select,
.filter-group input {
  appearance: none;
  -webkit-appearance: none;
  padding: 0.55rem 1.75rem 0.55rem 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--ink);
  background-color: transparent;
  border: none;
  border-bottom: 1.5px solid var(--accent);
  border-radius: 0;
  min-width: 11rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='none' stroke='%232a6f7c' stroke-width='1.4' d='M1 1l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.15rem center;
  cursor: pointer;
}

.filter-group input {
  background-image: none;
  padding-right: 0;
}

.filter-group select:focus,
.filter-group input:focus {
  outline: none;
  border-bottom-color: var(--ink);
  box-shadow: 0 2px 0 0 var(--focus);
}

.filter-group select:focus-visible,
.filter-group input:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 4px;
  box-shadow: none;
}

.filter-actions {
  display: flex;
  gap: var(--space-sm);
  align-items: center;
}

/* Ranking table — airy, RANK / ENTITY / SCORE */
.table-wrap {
  overflow-x: auto;
  border: none;
  background: transparent;
  -webkit-overflow-scrolling: touch;
}

.data-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  font-variant-numeric: tabular-nums;
}

.data-table th,
.data-table td {
  padding: 1.05rem 0.75rem;
  text-align: left;
  border-bottom: 1px solid rgba(42, 111, 124, 0.28);
}

.data-table th:first-child,
.data-table td:first-child {
  padding-left: 0;
}

.data-table th:last-child,
.data-table td:last-child {
  padding-right: 0;
  text-align: right;
}

.data-table th {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  background: transparent;
  white-space: nowrap;
  border-bottom: 1.5px solid var(--accent);
  padding-bottom: 0.85rem;
}

.data-table tbody tr:hover {
  background: rgba(42, 111, 124, 0.04);
}

.data-table td.rank {
  font-family: var(--font-sans);
  font-weight: 500;
  color: var(--ink);
  width: 4rem;
  font-variant-numeric: tabular-nums;
}

.data-table td.entity {
  font-weight: 600;
  color: var(--ink);
}

.data-table td.score {
  font-weight: 500;
  color: var(--ink);
  font-variant-numeric: tabular-nums;
  font-feature-settings: "tnum" 1;
}

.table-footnote {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin-top: var(--space-lg);
}

/* Publications */
.pub-list {
  display: grid;
  gap: 0;
  margin-top: var(--space-xl);
}

.pub-card {
  display: grid;
  gap: var(--space-md);
  padding: var(--space-xl) 0;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border);
}

.pub-card:first-child {
  border-top: 1px solid var(--border);
}

.pub-card h3 {
  margin-bottom: var(--space-xs);
  font-size: 1.2rem;
}

.pub-card p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 0.925rem;
}

.pub-type {
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent);
}

.pub-date {
  font-size: 0.8rem;
  color: var(--ink-faint);
}

/* Contact form */
.form-wrap {
  background: transparent;
  border: none;
  border-top: 1px solid var(--border);
  padding: var(--space-xl) 0 0;
}

.form-group { margin-bottom: var(--space-lg); }

.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
  color: var(--ink);
  letter-spacing: 0.02em;
}

.form-group .hint {
  display: inline;
  font-size: 0.8rem;
  font-weight: 400;
  color: var(--ink-muted);
}

.form-control {
  width: 100%;
  padding: 0.7rem 0;
  font-family: var(--font-sans);
  font-size: 0.95rem;
  color: var(--ink);
  background: transparent;
  border: none;
  border-bottom: 1.5px solid var(--border-strong);
  border-radius: 0;
}

@media (prefers-reduced-motion: no-preference) {
  .form-control {
    transition: border-color var(--duration) var(--ease);
  }
}

.form-control:hover { border-bottom-color: var(--ink-muted); }

.form-control:focus {
  outline: none;
  border-bottom-color: var(--accent);
  box-shadow: 0 2px 0 0 var(--accent);
}

.form-control:focus-visible {
  outline: var(--focus-ring);
  outline-offset: 4px;
  box-shadow: none;
}

textarea.form-control {
  min-height: 140px;
  resize: vertical;
  padding-top: 0.7rem;
}

select.form-control {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='10' height='6' viewBox='0 0 10 6'%3E%3Cpath fill='none' stroke='%235c6b7a' stroke-width='1.4' d='M1 1l4 4 4-4'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.15rem center;
  padding-right: 1.75rem;
  cursor: pointer;
}

.form-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  align-items: center;
  margin-top: var(--space-xl);
}

.form-note {
  font-size: 0.8rem;
  color: var(--ink-muted);
  max-width: 22rem;
  margin: 0;
}

.contact-aside h3 {
  font-size: 1.05rem;
  margin-bottom: var(--space-md);
}

.contact-aside dl { margin: 0; }

.contact-aside dt {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-muted);
  margin-top: var(--space-lg);
}

.contact-aside dt:first-child { margin-top: 0; }

.contact-aside dd {
  margin: var(--space-xs) 0 0;
  font-weight: 500;
}

.contact-aside a {
  text-decoration: none;
  color: var(--ink);
  touch-action: manipulation;
}

.contact-aside a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.aside-panel {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--border);
}

.aside-panel + .aside-panel {
  margin-top: var(--space-xl);
}

/* Footer */
.site-footer {
  background: var(--ink);
  color: rgba(247, 245, 240, 0.65);
  padding: var(--space-3xl) 0 var(--space-xl);
  margin-top: auto;
  border-top: 2px solid var(--accent);
}

.footer-grid {
  display: grid;
  gap: var(--space-2xl);
  margin-bottom: var(--space-2xl);
  padding-bottom: var(--space-2xl);
  border-bottom: 1px solid rgba(247, 245, 240, 0.1);
}

.footer-brand .logo-text {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--paper);
  margin-bottom: var(--space-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.footer-brand .logo-text span {
  font-weight: 400;
  color: rgba(247, 245, 240, 0.55);
  margin-left: 0.35rem;
}

.footer-brand p {
  font-size: 0.85rem;
  max-width: 22rem;
  margin: 0;
  line-height: 1.65;
}

.footer-nav h4 {
  font-family: var(--font-sans);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: rgba(247, 245, 240, 0.45);
  margin-bottom: var(--space-md);
}

.footer-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-nav li { margin-bottom: 0.35rem; }

.footer-nav a {
  color: rgba(247, 245, 240, 0.7);
  text-decoration: none;
  font-size: 0.875rem;
  display: inline-block;
  padding: 0.2rem 0;
  touch-action: manipulation;
}

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

.footer-nav a:focus-visible {
  outline: 2px solid rgba(247, 245, 240, 0.7);
  outline-offset: 3px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  justify-content: space-between;
  align-items: center;
  font-size: 0.775rem;
}

/* Reduced motion — kill non-essential motion */
@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;
  }
}

/* Responsive */
@media (min-width: 640px) {
  .feature-rows { grid-template-columns: 1fr; }
  .metrics { grid-template-columns: repeat(2, 1fr); gap: var(--space-xl); }
  .step { grid-template-columns: auto 1fr; }
  .footer-grid { grid-template-columns: 1.5fr 1fr 1fr; }
  .pillars { grid-template-columns: 1fr 1fr; }
  .pub-card {
    grid-template-columns: 1fr auto;
    align-items: start;
  }
  .cards { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 900px) {
  .hero-grid {
    grid-template-columns: 1.15fr 0.95fr;
    gap: clamp(2.5rem, 6vw, 5rem);
    align-items: start;
  }

  .feature-rows {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-2xl);
    border-top: none;
  }

  .feature-row {
    border-bottom: none;
    border-top: 1px solid var(--border);
    padding-top: var(--space-xl);
  }

  .cards { grid-template-columns: repeat(3, 1fr); }
  .metrics { grid-template-columns: repeat(4, 1fr); }
  .steps { grid-template-columns: repeat(3, 1fr); gap: var(--space-2xl); }

  .step {
    grid-template-columns: 1fr;
    border-top: none;
    padding-top: 0;
    border-left: 1px solid var(--border);
    padding-left: var(--space-xl);
  }

  .steps .step:first-child {
    border-left: none;
    padding-left: 0;
  }

  .split { grid-template-columns: 1.45fr 0.75fr; }

  .nav-cta .btn {
    padding: 0.5rem 0.95rem;
    font-size: 0.8rem;
    min-height: 40px;
  }
}

@media (max-width: 900px) {
  .nav-toggle { display: block; }

  .site-nav {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--paper);
    border-bottom: 1px solid var(--border);
    padding: var(--space-md) var(--space-xl) var(--space-lg);
  }

  .site-nav.is-open { display: block; }

  .nav-list {
    flex-direction: column;
    align-items: stretch;
    gap: 0;
  }

  .nav-list a {
    padding: 0.85rem 0.5rem;
    border-bottom: 1px solid var(--paper-dark);
    min-height: 44px;
  }

  .nav-list a[aria-current="page"] {
    border-bottom-color: var(--paper-dark);
    box-shadow: inset 3px 0 0 var(--accent);
  }

  .nav-cta { margin: var(--space-md) 0 0; }
  .nav-cta .btn { width: 100%; }
}

@media (max-width: 639px) {
  .container { padding: 0 var(--space-lg); }
  .footer-grid { grid-template-columns: 1fr; }
  .principle { grid-template-columns: 1fr; gap: var(--space-sm); }
  .filters { flex-direction: column; align-items: stretch; gap: var(--space-lg); }
  .filter-group select,
  .filter-group input { min-width: 0; width: 100%; }
  .filter-actions { width: 100%; }
  .filter-actions .btn { flex: 1; }
  .hero { padding: var(--space-3xl) 0 var(--space-2xl); }
}

@media print {
  .site-header,
  .site-footer,
  .nav-toggle,
  .cta-banner .btn-group,
  .filters { display: none; }
  body { background: white; color: black; }
}