/* ============================================================
   Statuz IDE — GitHub Pages
   Swiss Style · Black & White · Minimalist
   ============================================================ */

/* --- Fonts --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&display=swap');

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Variables --- */
:root {
  --color-black: #000000;
  --color-white: #FFFFFF;
  --color-near-black: #1A1A1A;
  --color-dark-gray: #333333;
  --color-mid-gray: #999999;
  --color-light-gray: #F5F5F5;
  --color-border: #E0E0E0;

  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Helvetica Neue', 'Segoe UI', sans-serif;

  --grid-columns: 12;
  --grid-gap: 24px;
  --content-max: 1152px;
  --page-max: 1280px;

  --space-xs: 8px;
  --space-sm: 16px;
  --space-md: 24px;
  --space-lg: 40px;
  --space-xl: 64px;
  --space-2xl: 80px;
  --space-3xl: 120px;
  --space-4xl: 160px;
  --space-5xl: 200px;
}

/* --- Base --- */
body {
  font-family: var(--font-primary);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-near-black);
  background: var(--color-white);
}

::selection {
  background: var(--color-black);
  color: var(--color-white);
}

a {
  color: inherit;
  text-decoration: none;
}

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

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

.grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: var(--grid-gap);
}

/* --- Typography --- */
.hero-title {
  font-size: clamp(3rem, 8vw, 6rem);
  font-weight: 800;
  line-height: 0.95;
  letter-spacing: -0.03em;
  text-transform: none;
}

.hero-subtitle {
  font-size: clamp(1.125rem, 2.5vw, 1.5rem);
  font-weight: 400;
  line-height: 1.4;
  color: var(--color-dark-gray);
  max-width: 640px;
}

.section-label {
  font-size: clamp(0.625rem, 1.2vw, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
  margin-bottom: var(--space-md);
}

.section-title {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.section-title-large {
  font-size: clamp(2.5rem, 5vw, 4rem);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.02em;
}

.section-header {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-lg);
}

.body-large {
  font-size: clamp(1.125rem, 1.5vw, 1.25rem);
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.body-text {
  font-size: 1rem;
  line-height: 1.7;
  color: var(--color-dark-gray);
}

.body-small {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-mid-gray);
}

.label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

/* --- Horizontal Rule (Section Divider) --- */
.section-rule {
  width: 100%;
  height: 1px;
  background: var(--color-border);
  border: none;
  margin: 0;
}

/* --- Section Spacing --- */
.section {
  padding: var(--space-4xl) 0;
}

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

.section-generous {
  padding: var(--space-5xl) 0;
}

/* ============================================================
   1. HERO
   ============================================================ */
.hero {
  padding: var(--space-5xl) 0 var(--space-4xl);
  min-height: 80vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.hero-inner {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: var(--content-max);
}

.hero-logo {
  width: 64px;
  height: 64px;
  color: var(--color-black);
  margin-bottom: var(--space-sm);
}

.hero-tagline {
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-mid-gray);
  letter-spacing: 0.01em;
}

.hero-dramatic {
  font-size: clamp(1.5rem, 3.5vw, 2.5rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -0.02em;
  text-transform: uppercase;
  color: var(--color-black);
  padding: var(--space-sm) 0;
  border-top: 3px solid var(--color-black);
  border-bottom: 3px solid var(--color-black);
  max-width: 100%;
  margin-top: var(--space-xs);
}

/* ============================================================
   Pull Quotes
   ============================================================ */
.pull-quote {
  padding: var(--space-3xl) 0;
  background: var(--color-light-gray);
  text-align: center;
}

.pull-quote-text {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
  max-width: 800px;
  margin: 0 auto;
}

.pull-quote-text em {
  font-style: normal;
  background: var(--color-black);
  color: var(--color-white);
  padding: 0 6px;
}

/* ============================================================
   Manifesto
   ============================================================ */
.manifesto {
  padding: var(--space-5xl) 0;
  background: var(--color-black);
  color: var(--color-white);
}

.manifesto-label {
  font-size: clamp(0.625rem, 1.2vw, 0.75rem);
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
  margin-bottom: var(--space-xl);
}

.manifesto-statements {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 900px;
}

.manifesto-statement {
  display: flex;
  gap: var(--space-lg);
  padding: var(--space-xl) 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  align-items: flex-start;
}

.manifesto-statement:first-child {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.manifesto-marker {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--color-mid-gray);
  flex-shrink: 0;
  width: 32px;
  line-height: 1.6;
}

.manifesto-text {
  font-size: clamp(1.125rem, 1.8vw, 1.5rem);
  line-height: 1.6;
  font-weight: 300;
  color: rgba(255, 255, 255, 0.85);
}

.manifesto-text strong {
  font-weight: 700;
  color: var(--color-white);
}

.manifesto-footer {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  text-align: center;
  margin-top: var(--space-2xl);
  padding-top: var(--space-xl);
  border-top: 2px solid rgba(255, 255, 255, 0.2);
  color: var(--color-white);
}

/* ============================================================
   Comparison Table
   ============================================================ */
.comparison-table-wrapper {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  border: 1px solid var(--color-border);
}

.comparison-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  min-width: 640px;
}

.comparison-table th {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: var(--space-sm) var(--space-md);
  text-align: left;
  border-bottom: 2px solid var(--color-black);
  background: var(--color-white);
  white-space: nowrap;
}

.comparison-table th.highlight {
  background: var(--color-black);
  color: var(--color-white);
}

.comparison-table td {
  padding: var(--space-sm) var(--space-md);
  border-bottom: 1px solid var(--color-border);
  vertical-align: middle;
}

.comparison-table td.feature-name {
  font-weight: 600;
  white-space: nowrap;
}

.comparison-table td.highlight-cell {
  background: var(--color-light-gray);
  font-weight: 500;
}

.comparison-table tbody tr:hover {
  background: var(--color-light-gray);
}

.comparison-table tbody tr:hover td.highlight-cell {
  background: #e8e8e8;
}

.check {
  display: inline-block;
  font-weight: 700;
  margin-right: 4px;
}

.check-yes {
  color: #000;
}

.check-no {
  color: var(--color-border);
}

.check-partial {
  color: var(--color-mid-gray);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-xs);
  padding: 14px 32px;
  font-family: var(--font-primary);
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  border: 2px solid var(--color-black);
  background: transparent;
  color: var(--color-black);
  cursor: pointer;
  transition: all 0.2s ease;
  text-decoration: none;
}

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

.btn-primary {
  background: var(--color-black);
  color: var(--color-white);
  border: 2px solid var(--color-black);
}

.btn-primary:hover {
  background: var(--color-near-black);
  border-color: var(--color-near-black);
}

.btn svg {
  width: 16px;
  height: 16px;
}

/* ============================================================
   Sticky Nav
   ============================================================ */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  padding: 0;
  height: 0;
  overflow: visible;
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 48px;
  max-width: var(--page-max);
  margin: 0 auto;
  padding: 0 var(--space-xl);
}

.nav-logo {
  width: 20px;
  height: 20px;
  color: var(--color-black);
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  gap: var(--space-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
  transition: color 0.2s ease;
}

.nav-links a:hover {
  color: var(--color-black);
}

/* ============================================================
   Stats Bar
   ============================================================ */
.stats-bar {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

.stat-item {
  background: var(--color-white);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
}

.stat-number {
  font-size: 2.5rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  margin-bottom: var(--space-xs);
}

.stat-label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

/* ============================================================
   2. DESIGN PHILOSOPHY
   ============================================================ */
.philosophy-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--grid-gap);
}

.philosophy-card {
  border: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.philosophy-card.has-detail {
  grid-column: 1 / -1;
}

.philosophy-card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.philosophy-card-title {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.philosophy-card-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.philosophy-detail-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
  margin-top: var(--space-sm);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

.philosophy-detail-item {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.philosophy-detail-item dt {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.philosophy-detail-item dd {
  font-size: 0.875rem;
  color: var(--color-dark-gray);
  line-height: 1.5;
}

/* ============================================================
   3. CORE IDEA (Three Queries)
   ============================================================ */
.core-thesis {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 500;
  line-height: 1.3;
  letter-spacing: -0.01em;
  max-width: 800px;
  margin-bottom: var(--space-2xl);
}

.core-thesis em {
  font-style: normal;
  font-weight: 700;
  background: var(--color-black);
  color: var(--color-white);
  padding: 0 4px;
}

.query-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin-top: var(--space-xl);
}

.query-card {
  border: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.query-card svg {
  width: 48px;
  height: 48px;
  color: var(--color-black);
}

.query-name {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.query-desc {
  font-size: 0.9375rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.query-syntax {
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.8125rem;
  color: var(--color-mid-gray);
  padding-top: var(--space-sm);
  border-top: 1px solid var(--color-border);
}

/* ============================================================
   3. CAPABILITIES
   ============================================================ */
.capabilities-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
}

.capability-card {
  background: var(--color-white);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.capability-icon {
  width: 40px;
  height: 40px;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.capability-name {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.capability-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.capability-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: var(--space-sm);
}

.capability-tag {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
}

/* ============================================================
   4. TECHNICAL DEEP DIVE
   ============================================================ */
.tech-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
}

.tech-card {
  border: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.tech-card-full {
  grid-column: 1 / -1;
}

.tech-card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.tech-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.tech-card-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.tech-specs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  margin-top: var(--space-sm);
}

.tech-spec {
  background: var(--color-white);
  padding: var(--space-sm) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.tech-spec-label {
  font-size: 0.625rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.tech-spec-value {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-near-black);
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
}

.tech-code-block {
  background: var(--color-light-gray);
  padding: var(--space-md);
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.75rem;
  line-height: 1.7;
  color: var(--color-dark-gray);
  overflow-x: auto;
  white-space: pre;
  margin-top: var(--space-sm);
}

.tech-algo {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
  padding: var(--space-sm) 0;
}

.tech-algo-label {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.tech-algo-desc {
  font-size: 0.875rem;
  color: var(--color-dark-gray);
  line-height: 1.5;
}

/* ============================================================
   5. AI PIPELINE
   ============================================================ */
.ai-pipeline-diagram {
  display: flex;
  flex-direction: column;
  gap: 0;
  max-width: 900px;
  margin: var(--space-xl) auto 0;
}

.ai-stage {
  display: flex;
  align-items: stretch;
  gap: 0;
}

.ai-stage-box {
  flex: 1;
  border: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.ai-stage-box.highlight {
  border-color: var(--color-black);
  background: var(--color-light-gray);
}

.ai-stage-label {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

.ai-stage-name {
  font-size: 0.9375rem;
  font-weight: 700;
}

.ai-stage-desc {
  font-size: 0.75rem;
  color: var(--color-dark-gray);
  line-height: 1.5;
}

.ai-stage-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  flex-shrink: 0;
  color: var(--color-mid-gray);
}

.ai-flow-row {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin: var(--space-xl) 0;
}

.ai-flow-card {
  border: 1px solid var(--color-border);
  padding: var(--space-lg) var(--space-md);
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.ai-flow-card-icon {
  width: 32px;
  height: 32px;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.ai-flow-card-title {
  font-size: 1rem;
  font-weight: 700;
}

.ai-flow-card-desc {
  font-size: 0.8125rem;
  color: var(--color-dark-gray);
  line-height: 1.5;
}

.ai-flow-card-code {
  font-family: 'SF Mono', 'Menlo', 'Monaco', 'Courier New', monospace;
  font-size: 0.6875rem;
  color: var(--color-mid-gray);
  padding-top: var(--space-xs);
  border-top: 1px solid var(--color-border);
}

.provider-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1px;
  background: var(--color-border);
  border: 1px solid var(--color-border);
  margin: var(--space-xl) 0;
}

.provider-item {
  background: var(--color-white);
  padding: var(--space-md) var(--space-sm);
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.provider-name {
  font-size: 0.8125rem;
  font-weight: 600;
}

.provider-tag {
  font-size: 0.625rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

/* ============================================================
   6. DCR SYSTEM
   ============================================================ */
.dcr-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--grid-gap);
}

.dcr-card {
  border: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.dcr-card-full {
  grid-column: 1 / -1;
}

.dcr-card-icon {
  width: 40px;
  height: 40px;
  color: var(--color-black);
  margin-bottom: var(--space-xs);
}

.dcr-card-title {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.dcr-card-desc {
  font-size: 0.875rem;
  line-height: 1.6;
  color: var(--color-dark-gray);
}

.dcr-levels {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: var(--space-xs);
}

.dcr-level {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 4px 10px;
  border: 1px solid var(--color-border);
}

.dcr-level.highlight {
  border-color: var(--color-black);
  font-weight: 600;
}

.dcr-metrics {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin: var(--space-xl) 0;
}

.dcr-metric {
  text-align: center;
  padding: var(--space-lg) var(--space-md);
  border: 1px solid var(--color-border);
}

.dcr-metric-number {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.02em;
  margin-bottom: var(--space-xs);
}

.dcr-metric-label {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

/* ============================================================
   7. ARCHITECTURE
   ============================================================ */
.arch-diagram {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0;
  max-width: 720px;
  margin: var(--space-xl) auto 0;
}

.arch-layer {
  width: 100%;
  padding: var(--space-xl) var(--space-lg);
  border: 2px solid var(--color-black);
  text-align: center;
}

.arch-layer-name {
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: var(--space-xs);
}

.arch-layer-items {
  font-size: 0.875rem;
  color: var(--color-dark-gray);
  line-height: 1.6;
}

.arch-layer-coming {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
  margin-top: var(--space-xs);
}

.arch-connector {
  width: 2px;
  height: 40px;
  background: var(--color-black);
  position: relative;
}

.arch-connector::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: -4px;
  width: 10px;
  height: 10px;
  background: var(--color-black);
  transform: rotate(45deg);
}

.arch-note {
  font-size: 0.875rem;
  color: var(--color-mid-gray);
  text-align: center;
  margin-top: var(--space-lg);
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

/* ============================================================
   5. DOWNLOAD
   ============================================================ */
.download-info {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  margin-bottom: var(--space-xl);
  flex-wrap: wrap;
}

.download-version {
  font-size: 0.875rem;
  color: var(--color-mid-gray);
  display: flex;
  align-items: center;
  gap: var(--space-xs);
}

.download-version strong {
  color: var(--color-near-black);
  font-weight: 600;
}

.download-platforms {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--grid-gap);
  margin-bottom: var(--space-lg);
}

.download-card {
  border: 1px solid var(--color-border);
  padding: var(--space-xl) var(--space-lg);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  transition: border-color 0.2s ease;
}

.download-card:hover {
  border-color: var(--color-black);
}

.download-card-icon {
  width: 48px;
  height: 48px;
  color: var(--color-black);
}

.download-card-name {
  font-size: 1.125rem;
  font-weight: 700;
}

.download-card-desc {
  font-size: 0.8125rem;
  color: var(--color-mid-gray);
  line-height: 1.5;
}

.download-card-status {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 6px 16px;
  border: 1px solid var(--color-mid-gray);
  color: var(--color-mid-gray);
  margin-top: auto;
}

.download-card-status.available {
  border-color: var(--color-black);
  color: var(--color-black);
}

.download-requirements {
  margin-top: var(--space-lg);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
}

.download-requirements h4 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.download-requirements ul {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-xs) var(--space-lg);
}

.download-requirements li {
  font-size: 0.8125rem;
  color: var(--color-dark-gray);
  position: relative;
  padding-left: var(--space-sm);
}

.download-requirements li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 4px;
  height: 4px;
  background: var(--color-dark-gray);
}

.download-source {
  margin-top: var(--space-lg);
  text-align: center;
}

.download-source p {
  font-size: 0.875rem;
  color: var(--color-mid-gray);
}

.download-source a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 3px;
}

.download-source a:hover {
  color: var(--color-black);
}

/* ============================================================
   6. STATUS / ROADMAP
   ============================================================ */
.phase-list {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
  max-width: 720px;
}

.phase-item {
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.phase-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
}

.phase-name {
  font-size: 1rem;
  font-weight: 600;
}

.phase-percent {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-mid-gray);
  font-variant-numeric: tabular-nums;
}

.phase-bar {
  width: 100%;
  height: 4px;
  background: var(--color-border);
  position: relative;
}

.phase-bar-fill {
  height: 100%;
  background: var(--color-black);
  transition: width 0.6s ease;
}

.phase-desc {
  font-size: 0.8125rem;
  color: var(--color-mid-gray);
  line-height: 1.5;
}

.phase-status {
  font-size: 0.6875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-mid-gray);
}

/* ============================================================
   7. LEGAL / FOOTER
   ============================================================ */
.footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  border-top: 1px solid var(--color-border);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-logo {
  width: 32px;
  height: 32px;
  color: var(--color-black);
}

.footer-brand p {
  font-size: 0.8125rem;
  color: var(--color-mid-gray);
  line-height: 1.6;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-black);
  margin-bottom: var(--space-md);
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: var(--space-xs);
}

.footer-col a {
  font-size: 0.8125rem;
  color: var(--color-dark-gray);
  transition: color 0.2s ease;
}

.footer-col a:hover {
  color: var(--color-black);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.footer-bottom {
  padding-top: var(--space-lg);
  border-top: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-sm);
}

.footer-bottom p {
  font-size: 0.75rem;
  color: var(--color-mid-gray);
}

.footer-legal-links {
  display: flex;
  gap: var(--space-md);
}

.footer-legal-links a {
  font-size: 0.75rem;
  color: var(--color-mid-gray);
  transition: color 0.2s ease;
}

.footer-legal-links a:hover {
  color: var(--color-black);
}

/* License Section */
.license-section {
  margin-top: var(--space-lg);
  padding: var(--space-lg);
  background: var(--color-light-gray);
}

.license-section h3 {
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.license-section p {
  font-size: 0.8125rem;
  color: var(--color-dark-gray);
  line-height: 1.6;
  margin-bottom: var(--space-xs);
}

.license-section a {
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
}

.license-section a:hover {
  color: var(--color-black);
}

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .query-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .capabilities-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

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

  .ai-flow-row {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (max-width: 768px) {
  :root {
    --space-4xl: 100px;
    --space-5xl: 120px;
    --space-3xl: 80px;
  }

  .container {
    padding: 0 var(--space-lg);
  }

  .query-grid {
    grid-template-columns: 1fr;
  }

  .capabilities-grid {
    grid-template-columns: 1fr;
  }

  .download-platforms {
    grid-template-columns: 1fr;
  }

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

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .download-info {
    flex-direction: column;
  }

  .provider-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .ai-flow-row {
    grid-template-columns: 1fr;
  }

  .ai-stage {
    flex-direction: column;
  }

  .ai-stage-arrow {
    width: 100%;
    height: 24px;
    transform: rotate(90deg);
  }

  .manifesto-statement {
    flex-direction: column;
    gap: var(--space-xs);
  }

  .philosophy-grid {
    grid-template-columns: 1fr;
  }

  .tech-grid {
    grid-template-columns: 1fr;
  }

  .dcr-grid {
    grid-template-columns: 1fr;
  }

  .dcr-metrics {
    grid-template-columns: 1fr;
  }

  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 480px) {
  .hero {
    min-height: auto;
    padding: var(--space-3xl) 0 var(--space-2xl);
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn {
    width: 100%;
    text-align: center;
  }
}

/* ============================================================
   Print Styles
   ============================================================ */
@media print {
  .hero { min-height: auto; }
  .section { padding: 40px 0; }
  .btn { border: 1px solid #000; }
  .download-card, .capability-card, .query-card { break-inside: avoid; }
}

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

.text-center {
  text-align: center;
}

.mx-auto {
  margin-left: auto;
  margin-right: auto;
}