/* Margot — Mountain Meadow Systems
   Dark theme, Anthropic/OpenAI aesthetic.
*/

:root {
  --color-bg: #0a0a0a;
  --color-bg-subtle: #141414;
  --color-text: #ececec;
  --color-text-secondary: #999;
  --color-text-muted: #666;
  --color-accent: #e07a5f;
  --color-accent-hover: #eb8e76;
  --color-dark: #111118;
  --color-dark-surface: #18182a;
  --color-border: #1e1e1e;
  --font-heading: 'Space Grotesk', -apple-system, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', Monaco, monospace;
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 12px;
}

/* ---- Reset ---- */

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

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

body {
  font-family: var(--font-body);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
}

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

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

/* ---- Layout ---- */

.container {
  width: 100%;
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ---- Navbar ---- */

.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 64px;
  background: rgba(10, 10, 10, 0.88);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 100;
  transition: box-shadow 200ms ease;
}

.navbar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.logo-icon {
  color: var(--color-accent);
  font-size: 1.125rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 2rem;
}

.nav-links a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 150ms ease;
}

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

.nav-buttons {
  display: flex;
  gap: 0.5rem;
}

.nav-mobile-only {
  display: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 1px;
  transition: transform 200ms ease, opacity 200ms ease;
}

/* ---- Buttons ---- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-heading);
  font-weight: 600;
  border-radius: var(--radius-md);
  border: none;
  cursor: pointer;
  transition: background-color 150ms ease;
  gap: 0.5rem;
}

.btn-primary {
  padding: 0.75rem 1.75rem;
  font-size: 0.9375rem;
  background-color: var(--color-text);
  color: var(--color-bg);
}

.btn-primary:hover {
  background-color: #d4d4d4;
}

.btn-nav {
  padding: 0.4375rem 1rem;
  font-size: 0.8125rem;
  background-color: var(--color-text);
  color: var(--color-bg);
}

.btn-nav:hover {
  background-color: #d4d4d4;
}

/* ---- Hero ---- */

.hero {
  position: relative;
  padding: calc(64px + 5.5rem) 0 4rem;
  text-align: center;
}

.hero::before {
  display: none;
}

.hero-icons {
  display: flex;
  justify-content: center;
  gap: 0.75rem;
  margin-bottom: 2rem;
}

.hero-icon {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1.25rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background-color: var(--color-bg-subtle);
  color: var(--color-text);
  font-family: var(--font-heading);
  font-size: 0.8125rem;
  font-weight: 600;
  transition: border-color 150ms ease, background-color 150ms ease;
}

.hero-icon:hover {
  border-color: var(--color-text-muted);
  background-color: var(--color-border);
}

.hero-inner {
  position: relative;
  max-width: 620px;
  margin: 0 auto;
}

.hero h1 {
  font-family: var(--font-heading);
  font-size: 3.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin-bottom: 1.25rem;
}

.hero .version {
  font-weight: 500;
  font-size: 1.125rem;
  color: var(--color-text-secondary);
  vertical-align: super;
  letter-spacing: -0.01em;
}

.tagline {
  font-size: 1.25rem;
  color: var(--color-text);
  font-weight: 500;
  line-height: 1.45;
  margin-bottom: 1rem;
}

.hero-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  margin-bottom: 2.25rem;
}

.hero .btn-primary {
  margin-bottom: 0;
}

.hero-contact {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 1.5rem;
}

.hero-contact-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 150ms ease;
}

.hero-contact-link:hover {
  color: var(--color-text);
}

.hero-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

/* ---- Video ---- */

.video-section {
  padding: 0 0 5rem;
}

.video-container {
  position: relative;
  max-width: 880px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.1);
  background-color: #000;
  aspect-ratio: 16 / 9;
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
  cursor: pointer;
}

.video-container video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

/* Play overlay */
.vp-overlay {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(0, 0, 0, 0.35);
  border: none;
  cursor: pointer;
  z-index: 2;
  transition: opacity 300ms ease;
}

.vp-overlay.hidden {
  opacity: 0;
  pointer-events: none;
}

.vp-play-icon {
  width: 64px;
  height: 64px;
  color: #fff;
  filter: drop-shadow(0 2px 8px rgba(0, 0, 0, 0.5));
  transition: transform 150ms ease;
}

.vp-overlay:hover .vp-play-icon {
  transform: scale(1.08);
}

/* Controls bar */
.vp-controls {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  display: flex;
  align-items: center;
  gap: 0.625rem;
  padding: 0.5rem 0.75rem;
  background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
  z-index: 3;
  opacity: 0;
  transition: opacity 250ms ease;
}

.video-container:hover .vp-controls,
.video-container.vp-paused .vp-controls {
  opacity: 1;
}

.vp-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  background: none;
  border: none;
  color: rgba(255, 255, 255, 0.85);
  cursor: pointer;
  padding: 0.25rem;
  transition: color 150ms ease;
  flex-shrink: 0;
}

.vp-btn:hover {
  color: #fff;
}

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

.vp-time {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  color: rgba(255, 255, 255, 0.6);
  white-space: nowrap;
  flex-shrink: 0;
  letter-spacing: -0.01em;
  min-width: 80px;
}

/* Progress bar */
.vp-progress {
  flex: 1;
  height: 4px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 2px;
  cursor: pointer;
  position: relative;
  transition: height 150ms ease;
}

.vp-progress:hover {
  height: 6px;
}

.vp-progress-filled {
  height: 100%;
  background-color: var(--color-accent);
  border-radius: 2px;
  width: 0%;
  transition: width 100ms linear;
}

/* ---- Capabilities (Bento Grid) ---- */

.capabilities {
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
}

.capabilities h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 2rem;
}

.bento-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background-color: var(--color-border);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

.bento-cell {
  background-color: var(--color-bg);
  padding: 1.75rem 2rem;
}

.bento-cell.wide {
  grid-column: span 2;
}

.bento-cell.full {
  grid-column: 1 / -1;
  background-color: var(--color-bg-subtle);
}

.bento-cell h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.bento-cell p {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ---- Architecture ---- */

.architecture {
  padding: 5rem 0;
  border-top: 1px solid var(--color-border);
}

.architecture h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 1rem;
}

.section-desc {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.7;
  max-width: 680px;
  margin-bottom: 2.5rem;
}

/* Agent rows */

.agent-rows {
  margin-bottom: 2.5rem;
}

.agent-row {
  display: flex;
  align-items: baseline;
  gap: 1.5rem;
  padding: 0.875rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

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

.agent-row:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.agent-name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.9375rem;
  min-width: 90px;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.agent-detail {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

/* Tech stack strip */

.tech-strip {
  display: flex;
  gap: 0.625rem;
  flex-wrap: wrap;
}

.tech-strip span {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 400;
  padding: 0.375rem 0.75rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-secondary);
  letter-spacing: -0.01em;
}

/* ---- Memory (dark section) ---- */

.memory {
  padding: 5rem 0;
  background-color: var(--color-dark);
  color: #ececec;
}

.memory h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  color: #fff;
  margin-bottom: 1rem;
}

.memory .section-desc {
  color: rgba(236, 236, 236, 0.55);
  margin-bottom: 2.5rem;
}

.memory-layers {
  display: flex;
  flex-direction: column;
  gap: 1.75rem;
  max-width: 600px;
}

.memory-layer {
  display: flex;
  align-items: flex-start;
  gap: 1.25rem;
}

.layer-number {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-accent);
  min-width: 28px;
  padding-top: 3px;
}

.layer-info h4 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  margin-bottom: 0.25rem;
  color: #fff;
  letter-spacing: -0.01em;
}

.layer-info p {
  font-size: 0.875rem;
  color: rgba(236, 236, 236, 0.45);
  line-height: 1.6;
}

/* ---- Get Access (CTA) ---- */

.get-access {
  padding: 5rem 0;
  text-align: center;
  border-top: 1px solid var(--color-border);
}

.cta-inner {
  max-width: 480px;
  margin: 0 auto;
}

.get-access h2 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 0.75rem;
}

.cta-desc {
  font-size: 1rem;
  color: var(--color-text-secondary);
  margin-bottom: 1.25rem;
}

.cost-pills {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.cost-pill {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  font-weight: 400;
  padding: 0.3125rem 0.75rem;
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-text-muted);
  letter-spacing: -0.01em;
}

.btn-gh {
  margin-bottom: 1.5rem;
}

.btn-gh svg {
  flex-shrink: 0;
}

.sys-req {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

/* ---- Demo Page ---- */

.demo-page {
  padding: calc(64px + 5rem) 0 5rem;
  min-height: 100vh;
  display: flex;
  align-items: flex-start;
  justify-content: center;
}

.demo-page .container {
  display: flex;
  justify-content: center;
}

.form-card {
  max-width: 480px;
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2.5rem;
  background-color: var(--color-bg-subtle);
}

.form-card h1 {
  font-family: var(--font-heading);
  font-size: 1.75rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  color: var(--color-text);
}

.form-subtitle {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.6875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.5rem;
}

.form-input,
.form-textarea {
  display: block;
  width: 100%;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  font-family: var(--font-body);
  font-size: 0.9375rem;
  color: var(--color-text);
  background-color: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 0.75rem 0.875rem;
  outline: none;
  transition: border-color 150ms ease;
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-muted);
  opacity: 1;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--color-accent);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
  line-height: 1.6;
}

.form-submit {
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.875rem 1.75rem;
}

/* ---- Footer ---- */

.footer {
  padding: 2.5rem 0;
  border-top: 1px solid var(--color-border);
}

.footer-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
}

.footer-left {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.footer-brand .logo-icon {
  font-size: 1rem;
}

.footer-byline {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-contact {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}

.footer-copy {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
}

.footer-link {
  font-size: 0.8125rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 150ms ease;
}

.footer-link:hover {
  color: var(--color-text);
}

.footer-linkedin {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
}

/* ---- Responsive: 1024px ---- */

@media (max-width: 1024px) {
  .bento-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .bento-cell.wide {
    grid-column: span 2;
  }

  .bento-cell.full {
    grid-column: 1 / -1;
  }

  .agent-row {
    flex-direction: column;
    gap: 0.25rem;
  }

  .agent-name {
    min-width: unset;
  }
}

/* ---- Responsive: 768px ---- */

@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    display: none;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: rgba(10, 10, 10, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
    padding: 0.5rem 1.5rem;
    gap: 0;
    z-index: 99;
  }

  .navbar.open .nav-links {
    display: flex;
  }

  .nav-links li {
    list-style: none;
  }

  .nav-links li a {
    display: block;
    padding: 0.875rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 1rem;
    color: var(--color-text-secondary);
  }

  .nav-links li:last-child a {
    border-bottom: none;
  }

  .nav-mobile-only {
    display: list-item;
  }

  .nav-buttons {
    display: none;
  }

  .navbar.open .nav-toggle span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .navbar.open .nav-toggle span:nth-child(2) {
    opacity: 0;
  }

  .navbar.open .nav-toggle span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero {
    padding: calc(64px + 3.5rem) 0 3rem;
  }

  .hero h1 {
    font-size: 2.5rem;
  }

  .tagline {
    font-size: 1.0625rem;
  }

  .hero-desc {
    font-size: 0.875rem;
  }

  .video-section {
    padding: 0 0 3.5rem;
  }

  .vp-play-icon {
    width: 48px;
    height: 48px;
  }

  .vp-controls {
    gap: 0.5rem;
    padding: 0.375rem 0.625rem;
  }

  .vp-time {
    font-size: 0.625rem;
    min-width: 70px;
  }

  .capabilities,
  .architecture,
  .memory,
  .get-access {
    padding: 3.5rem 0;
  }

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

  .bento-cell.wide,
  .bento-cell.full {
    grid-column: span 1;
  }

  .tech-strip {
    gap: 0.375rem;
  }

  .tech-strip span {
    font-size: 0.6875rem;
    padding: 0.3125rem 0.625rem;
  }

  .demo-page {
    padding: calc(64px + 2.5rem) 0 3rem;
  }

  .form-card {
    padding: 2rem 1.5rem;
  }

  .footer-row {
    flex-direction: column;
    text-align: center;
    gap: 1rem;
  }

  .footer-left {
    align-items: center;
  }

  .footer-contact {
    flex-direction: column;
    gap: 0.75rem;
  }
}

/* ---- Responsive: 480px ---- */

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero .version {
    font-size: 0.875rem;
  }

  .capabilities h2,
  .architecture h2,
  .memory h2,
  .get-access h2 {
    font-size: 1.25rem;
  }

  .bento-cell {
    padding: 1.25rem 1.25rem;
  }

  .section-desc {
    font-size: 0.875rem;
  }

  .cost-pills {
    flex-direction: column;
    align-items: center;
  }
}

/* ---- Paper Page ---- */

.nav-links a.active {
  color: var(--color-text);
}


.paper-page {
  padding: calc(64px + 4rem) 0 4rem;
}

.paper-header {
  max-width: 780px;
  margin: 0 auto 3rem;
  text-align: center;
}

.paper-header h1 {
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  margin-bottom: 0.5rem;
}

.paper-subtitle {
  font-size: 1.25rem;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 1.25rem;
}

.paper-meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  margin-bottom: 0.5rem;
}

.paper-author {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-muted);
}

.paper-content {
  max-width: 780px;
  margin: 0 auto;
}

.paper-content h2 {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: -0.03em;
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.paper-content h2:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.paper-content h3 {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin-top: 2rem;
  margin-bottom: 0.75rem;
  color: var(--color-text);
  text-align: center;
}

.paper-content h4 {
  font-family: var(--font-heading);
  font-size: 0.9375rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  margin-top: 1.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text);
  text-align: center;
}

.paper-content p {
  font-size: 0.9375rem;
  color: var(--color-text-secondary);
  line-height: 1.75;
  margin-bottom: 1rem;
}

.paper-content strong {
  color: var(--color-text);
  font-weight: 600;
}

.paper-content .table-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  margin: 1.25rem 0;
}

.paper-content table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.8125rem;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
}

.paper-content thead {
  background-color: rgba(255, 255, 255, 0.04);
}

.paper-content th {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  text-align: left;
  padding: 0.75rem 1rem;
  border-bottom: 1px solid var(--color-border);
}

.paper-content td {
  padding: 0.625rem 1rem;
  color: var(--color-text-secondary);
  border-bottom: 1px solid var(--color-border);
  line-height: 1.5;
}

.paper-content tr:last-child td {
  border-bottom: none;
}

.paper-content tr:nth-child(even) {
  background-color: rgba(255, 255, 255, 0.02);
}

.paper-footer-meta {
  margin-top: 3.5rem;
  padding-top: 2rem;
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.paper-footer-meta p {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  margin-bottom: 0.25rem;
}

/* Paper page responsive */

@media (max-width: 768px) {
  .paper-page {
    padding: calc(64px + 2.5rem) 0 3rem;
  }

  .paper-header h1 {
    font-size: 2.25rem;
  }

  .paper-subtitle {
    font-size: 1.0625rem;
  }

  .paper-meta,
  .paper-author {
    flex-direction: column;
    gap: 0.25rem;
  }

  .paper-content h2 {
    font-size: 1.25rem;
    margin-top: 2.5rem;
    padding-top: 1.5rem;
  }

  .paper-content h3 {
    font-size: 1rem;
  }

  .paper-content table {
    min-width: 500px;
  }


}

@media (max-width: 480px) {
  .paper-header h1 {
    font-size: 1.75rem;
    letter-spacing: 0.08em;
  }

  .paper-content p {
    font-size: 0.875rem;
  }

  .paper-content table {
    font-size: 0.75rem;
  }

  .paper-content th,
  .paper-content td {
    padding: 0.5rem 0.75rem;
  }
}

/* ---- Blog Index ---- */

.blog-page {
  padding: calc(64px + 4rem) 0 4rem;
}

.blog-header {
  max-width: 780px;
  margin: 0 auto 3rem;
  text-align: center;
}

.blog-header h1 {
  font-family: var(--font-heading);
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.04em;
  margin-bottom: 0.75rem;
}

.blog-header p {
  font-size: 1rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
}

.blog-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 780px;
  margin: 0 auto;
}

.blog-card {
  display: block;
  background-color: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  transition: border-color 200ms ease, background-color 200ms ease;
}

.blog-card:hover {
  border-color: var(--color-text-muted);
  background-color: var(--color-border);
}

.blog-card-date {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
  letter-spacing: -0.01em;
}

.blog-card-title {
  font-family: var(--font-heading);
  font-size: 1.125rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 0.5rem;
  line-height: 1.35;
}

.blog-card-excerpt {
  font-size: 0.875rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}

/* ---- Blog Post ---- */

.post-header {
  max-width: 780px;
  margin: 0 auto 3rem;
  text-align: center;
}

.post-header h1 {
  font-family: var(--font-heading);
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: 1rem;
}

.post-meta {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--color-text-secondary);
}

.post-back {
  display: inline-block;
  margin-top: 3rem;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  transition: color 150ms ease;
}

.post-back:hover {
  color: var(--color-text);
}

/* Blog responsive */

@media (max-width: 768px) {
  .blog-page {
    padding: calc(64px + 2.5rem) 0 3rem;
  }

  .blog-header h1 {
    font-size: 2rem;
  }

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

  .post-header h1 {
    font-size: 1.75rem;
  }

  .post-meta {
    flex-direction: column;
    gap: 0.25rem;
  }
}

@media (max-width: 480px) {
  .blog-header h1 {
    font-size: 1.75rem;
  }

  .blog-card {
    padding: 1.5rem;
  }

  .post-header h1 {
    font-size: 1.5rem;
  }
}