@import url('https://fonts.googleapis.com/css2?family=Inter:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

:root {
  --white: #ffffff;
  --off: #f8f8f6;
  --off2: #f2f2ef;
  --ink: #0a0a0a;
  --ink2: #1c1c1c;
  --mid: #6b7280;
  --light: #9ca3af;
  --border: #e8e8e5;
  --border2: #d4d4d0;
  --green: #16a34a;
  --green-bg: #f0fdf4;
  --amber: #b45309;
  --amber-bg: #fffbeb;
  --violet: #6b46f6;
  --violet-bg: #f3f0ff;
  --cyan: #0891b2;
  --cyan-bg: #ecfeff;

  --color-bg: var(--off);
  --color-surface: var(--white);
  --color-surface-elevated: var(--off2);
  --color-border: var(--border);
  --color-border-subtle: var(--border2);
  --color-text: var(--ink);
  --color-text-secondary: var(--ink2);
  --color-muted: var(--mid);
  --color-primary: var(--ink);
  --color-primary-dim: var(--ink2);
  --color-accent: var(--cyan);
  --color-accent-bg: var(--cyan-bg);

  --max-width: 1100px;
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-serif: Georgia, 'Times New Roman', serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;
  --radius: 0.75rem;
  --radius-lg: 1.25rem;
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04);
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
  --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.08), 0 32px 80px rgba(0, 0, 0, 0.06);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 100px;
}

body {
  margin: 0;
  padding: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── FLOATING PILL NAV ── */
.nav-outer {
  position: sticky;
  top: 0;
  z-index: 100;
  padding: 16px 0;
  pointer-events: none;
  display: flex;
  justify-content: center;
}

nav {
  pointer-events: all;
  position: relative;
  height: 56px;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1.5px solid var(--border2);
  border-radius: 100px;
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 4px 6px 4px 6px;
  gap: 8px;
  width: min(var(--max-width), calc(100vw - 32px));
  margin: 0 auto;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 400;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.3px;
  flex-shrink: 0;
  padding: 0 14px 0 6px;
  border-right: 1px solid var(--border);
  height: 100%;
}

.nav-logo span {
  color: var(--ink);
}

.nav-lm {
  width: 30px;
  height: 30px;
  background: var(--ink);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.nav-lm svg {
  width: 16px;
  height: 16px;
}

.nav-links {
  display: flex;
  gap: 0;
  list-style: none;
  margin: 0;
  padding: 0;
  flex: 1;
  justify-content: center;
}

.nav-links a {
  font-size: 14px;
  font-weight: 600;
  color: var(--mid);
  text-decoration: none;
  padding: 8px 16px;
  border-radius: 100px;
  transition: color 0.15s, background 0.15s;
  white-space: nowrap;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--ink);
  background: var(--off);
}

.nav-r {
  display: flex;
  gap: 8px;
  align-items: center;
  flex-shrink: 0;
}

.btn-ng {
  padding: 8px 16px;
  border: 1.5px solid var(--border2);
  background: transparent;
  color: var(--mid);
  border-radius: 100px;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: 0.15s;
  white-space: nowrap;
}

.btn-ng:hover {
  border-color: var(--ink);
  color: var(--ink);
}

.btn-np {
  padding: 9px 18px;
  background: var(--ink);
  color: #fff;
  border-radius: 100px;
  font-size: 13px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, transform 0.15s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  white-space: nowrap;
}

.btn-np:hover {
  background: var(--ink2);
  transform: translateY(-1px);
}

/* ── HERO ── */
.hero {
  padding: 72px 20px 0;
  max-width: 1160px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1.5px solid var(--border2);
  border-radius: 100px;
  padding: 6px 16px;
  font-size: 11px;
  font-weight: 700;
  color: var(--mid);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 28px;
}

.ey-dot {
  width: 6px;
  height: 6px;
  background: var(--green);
  border-radius: 50%;
  animation: blink 2s infinite;
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(46px, 7vw, 92px);
  font-weight: 400;
  line-height: 1.02;
  letter-spacing: -3.5px;
  color: var(--ink);
  max-width: 1100px;
  margin: 0 0 24px;
}

.hero h1 em {
  font-style: italic;
  color: var(--light);
  display: block;
}

.hero p {
  font-size: 18px;
  color: var(--mid);
  font-weight: 400;
  max-width: 540px;
  line-height: 1.7;
  margin: 0 auto 36px;
}

.hero-btns {
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: 56px;
}

.btn-h1 {
  padding: 14px 28px;
  background: var(--ink);
  color: #fff;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 700;
  border: none;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: background 0.15s, transform 0.18s;
  letter-spacing: -0.2px;
}

.btn-h1:hover {
  background: var(--ink2);
  transform: translateY(-2px);
  text-decoration: none;
}

.btn-h2 {
  padding: 14px 28px;
  background: transparent;
  color: var(--ink);
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  border: 1.5px solid var(--border2);
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: border-color 0.15s, background 0.15s, transform 0.18s;
}

.btn-h2:hover {
  border-color: var(--ink);
  background: var(--off);
  transform: translateY(-2px);
  text-decoration: none;
}

/* Legacy button classes */
.cta {
  margin-top: 2rem;
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.85rem 1.75rem;
  border-radius: var(--radius);
  font-weight: 600;
  transition: all 0.2s ease;
  border: 1px solid transparent;
}

.btn-primary {
  background: var(--ink);
  color: #fff;
}

.btn-primary:hover {
  background: var(--ink2);
  transform: translateY(-1px);
  text-decoration: none;
}

.btn-secondary {
  background: var(--white);
  color: var(--ink);
  border-color: var(--border2);
}

.btn-secondary:hover {
  border-color: var(--ink);
  background: var(--off);
  text-decoration: none;
}

/* ── WINDOW MOCKUP ── */
.window-wrap {
  width: 100%;
  max-width: 1100px;
}

.window {
  background: var(--white);
  border: 1.5px solid var(--border2);
  border-radius: 20px 20px 0 0;
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.window-bar {
  background: var(--off);
  border-bottom: 1px solid var(--border);
  padding: 13px 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.window-dots {
  display: flex;
  gap: 6px;
}

.window-dot {
  width: 11px;
  height: 11px;
  border-radius: 50%;
}

.window-dot.r { background: #ff5f57; }
.window-dot.y { background: #febc2e; }
.window-dot.g { background: #27c840; }

.window-url {
  flex: 1;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 6px 14px;
  font-size: 12px;
  color: var(--mid);
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 7px;
  max-width: 320px;
  margin: 0 auto;
}

.window-body {
  background: #0d1117;
  min-height: 200px;
}

.window-body video,
.window-body img {
  display: block;
  width: 100%;
  height: auto;
}

/* ── STATS BAR ── */
.stats-bar {
  width: 100%;
  max-width: 1100px;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  border: 1.5px solid var(--border2);
  border-top: none;
  border-radius: 0 0 20px 20px;
  overflow: hidden;
  background: var(--off);
  margin-bottom: 0;
}

.stat-item {
  padding: 18px 20px;
  border-right: 1px solid var(--border);
  transition: background 0.15s;
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background: var(--off2);
}

.stat-val {
  font-family: var(--font-serif);
  font-size: 22px;
  font-weight: 400;
  color: var(--ink);
  letter-spacing: -0.8px;
  display: block;
}

.stat-lbl {
  font-size: 11px;
  color: var(--mid);
  font-weight: 500;
  margin-top: 2px;
}

/* ── SECTIONS ── */
section {
  padding: 96px 20px;
  border-bottom: 1px solid var(--border);
}

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

section > .container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.sec-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 20px;
}

.sec-num {
  font-family: var(--font-serif);
  font-size: 12px;
  font-weight: 400;
  color: var(--light);
  min-width: 28px;
  width: auto;
  padding: 0 8px;
  height: 28px;
  border-radius: 14px;
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  white-space: nowrap;
}

.sec-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--light);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

h2 {
  font-family: var(--font-serif);
  font-size: clamp(32px, 4.5vw, 56px);
  font-weight: 400;
  letter-spacing: -2px;
  line-height: 1.05;
  color: var(--ink);
  margin: 0 0 52px;
}

h2 em {
  font-style: italic;
  color: var(--light);
}

h3 {
  font-size: 1.25rem;
  margin: 2rem 0 0.75rem;
  color: var(--ink);
  letter-spacing: -0.3px;
}

h4 { font-size: 1.1rem; margin: 1.5rem 0 0.5rem; color: var(--ink); }
h5 { font-size: 1rem; margin: 1.2rem 0 0.4rem; color: var(--ink); }
h6 { font-size: 0.95rem; margin: 1rem 0 0.3rem; color: var(--light); }

section > .container > h1 {
  font-size: 2.5rem;
  margin: 0 0 1rem;
  color: var(--ink);
  letter-spacing: -1px;
}

section > .container > p {
  color: var(--mid);
  font-size: 1.05rem;
  max-width: 720px;
  margin: 0 0 1rem;
}

/* ── CARDS ── */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.card {
  padding: 1.75rem;
  border-radius: var(--radius-lg);
  background: var(--white);
  border: 1.5px solid var(--border2);
  transition: background 0.2s, border-color 0.2s;
  position: relative;
  overflow: hidden;
}

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

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2.5px;
  background: var(--ink);
  opacity: 0;
  transition: opacity 0.2s ease;
}

.card:hover {
  background: var(--off2);
  border-color: var(--border);
}

.card:hover::before {
  opacity: 1;
}

.card h3 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-sans);
  font-size: 16px;
  font-weight: 700;
  letter-spacing: -0.2px;
}

.card p {
  color: var(--mid);
  margin: 0;
  font-size: 14px;
  line-height: 1.7;
}

.card-icon {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--off);
  border: 1.5px solid var(--border2);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
}

.card-icon svg {
  width: 20px;
  height: 20px;
}

/* ── LISTS ── */
ol {
  padding-left: 1.25rem;
  color: var(--mid);
}

ol li {
  margin: 0.85rem 0;
  line-height: 1.7;
}

ol li::marker {
  color: var(--ink);
  font-weight: 600;
}

ol li strong {
  color: var(--ink);
}

/* ── CODE ── */
code {
  font-family: var(--font-mono);
  font-size: 0.9em;
  background: var(--off2);
  padding: 0.2rem 0.45rem;
  border-radius: 0.375rem;
  border: 1px solid var(--border);
  color: var(--ink);
}

pre {
  background: var(--off2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem;
  overflow-x: auto;
}

pre code {
  background: transparent;
  border: none;
  padding: 0;
  color: var(--ink2);
}

pre.astro-code {
  background-color: var(--off2) !important;
}

/* ── FOOTER ── */
footer {
  background: var(--ink);
  border-radius: 24px 24px 0 0;
  padding: 52px 48px 40px;
  margin-top: 0;
  color: rgba(255, 255, 255, 0.5);
}

.footer-top {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  gap: 60px;
  flex-wrap: wrap;
  justify-content: space-between;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-serif);
  font-size: 22px;
  color: #fff;
  text-decoration: none;
  font-weight: 400;
  letter-spacing: -0.4px;
  margin-bottom: 14px;
}

.footer-lm {
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.15);
  border-radius: 9px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-lm svg {
  width: 18px;
  height: 18px;
}

.footer-brand p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.4);
  max-width: 240px;
  line-height: 1.65;
}

.footer-col h4 {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: rgba(255, 255, 255, 0.3);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin: 0;
  padding: 0;
}

.footer-col a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  text-decoration: none;
  transition: color 0.15s;
}

.footer-col a:hover {
  color: #fff;
}

.footer-btm {
  max-width: var(--max-width);
  margin: 28px auto 0;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
}

/* ── DIAGRAMS ── */
.diagram {
  margin: 2rem 0;
  padding: 1.5rem;
  background: var(--white);
  border: 1.5px solid var(--border2);
  border-radius: var(--radius-lg);
  overflow-x: auto;
  text-align: center;
  box-shadow: var(--shadow-sm);
}

.diagram svg {
  max-width: 100%;
  height: auto;
  display: block;
  margin: 0 auto;
}

/* ── DEMO VIDEO ── */
.video-demo {
  margin: 2rem 0;
  padding: 1rem;
  background: var(--white);
  border: 1.5px solid var(--border2);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  text-align: center;
}

.video-demo video {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius);
  display: block;
  margin: 0 auto;
}

/* ── CTA SECTION ── */
.cta-section {
  text-align: center;
  background: linear-gradient(180deg, var(--white) 0%, var(--off) 100%);
}

.cta-section h2 {
  margin-bottom: 1rem;
}

.cta-section p {
  color: var(--mid);
  max-width: 560px;
  margin: 0 auto 1.5rem;
}

/* ── SPEC / CONTENT PAGES ── */
.spec-content {
  max-width: 800px;
  margin: 0 auto;
  padding: 3rem 0;
}

.spec-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(36px, 5vw, 56px);
  margin-bottom: 0.5rem;
  letter-spacing: -2px;
  line-height: 1.05;
}

.spec-content h2 {
  border-bottom: 1px solid var(--border);
  padding-bottom: 0.75rem;
  margin-top: 3.5rem;
  font-size: 1.85rem;
}

.spec-content h3 {
  color: var(--ink);
  margin-top: 2.5rem;
  font-size: 1.35rem;
}

.spec-content p,
.spec-content li {
  color: var(--mid);
}

.spec-content a {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.spec-content a:hover {
  color: var(--cyan);
}

.spec-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5rem 0;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
}

.spec-content th,
.spec-content td {
  border: 1px solid var(--border);
  padding: 0.85rem;
  text-align: left;
}

.spec-content th {
  background: var(--off2);
  color: var(--ink);
  font-weight: 700;
}

.spec-content tr:nth-child(even) {
  background: var(--off);
}

/* ── ROADMAP ── */
.roadmap-list {
  list-style: none;
  padding: 0;
}

.roadmap-list li {
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
}

.roadmap-list li:last-child {
  border-bottom: none;
}

.status {
  display: inline-flex;
  align-items: center;
  padding: 0.25rem 0.6rem;
  border-radius: 0.375rem;
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  white-space: nowrap;
  margin-top: 0.15rem;
}

.status-current {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid #bbf7d0;
}

.status-next {
  background: var(--off2);
  color: var(--mid);
  border: 1px solid var(--border);
}

.status-future {
  background: var(--amber-bg);
  color: var(--amber);
  border: 1px solid #fde68a;
}

.status-done {
  background: var(--green-bg);
  color: var(--green);
  border: 1px solid #bbf7d0;
}

/* ── MOBILE ── */
@media (max-width: 900px) {
  .stats-bar {
    grid-template-columns: repeat(2, 1fr);
  }

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .stat-item:nth-child(1),
  .stat-item:nth-child(2) {
    border-bottom: 1px solid var(--border);
  }
}

@media (max-width: 768px) {
  section {
    padding: 64px 20px;
  }

  .hero {
    padding: 48px 20px 0;
  }

  .hero h1 {
    font-size: clamp(36px, 11vw, 56px);
    letter-spacing: -2px;
  }

  .nav-links {
    display: none;
    position: absolute;
    top: 100%;
    left: 16px;
    right: 16px;
    background: #0A0A0A;
    border: 1px solid #1F2937;
    border-radius: 8px;
    flex-direction: column;
    padding: 8px 0;
    z-index: 100;
  }
  .nav-links.open { display: flex; }
  .nav-links li { width: 100%; }
  .nav-links li a { display: block; padding: 10px 20px; border-bottom: 1px solid #1A1A1A; }
  .nav-links li:last-child a { border-bottom: none; }

  .nav-hamburger {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    background: none;
    border: 1px solid #333;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
  }
  .nav-hamburger span {
    display: block;
    width: 16px;
    height: 2px;
    background: #D1D5DB;
    position: relative;
  }
  .nav-hamburger span::before,
  .nav-hamburger span::after {
    content: '';
    display: block;
    width: 16px;
    height: 2px;
    background: #D1D5DB;
    position: absolute;
    left: 0;
  }
  .nav-hamburger span::before { top: -5px; }
  .nav-hamburger span::after { top: 5px; }

  nav {
    justify-content: space-between;
    gap: 12px;
    width: min(640px, calc(100vw - 32px));
    position: relative;
  }

  .nav-logo {
    border-right: none;
    padding-left: 0;
  }

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

  .footer-top {
    flex-direction: column;
    gap: 32px;
  }

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

  .btn {
    width: 100%;
    justify-content: center;
  }

  .btn-h1,
  .btn-h2 {
    width: 100%;
    justify-content: center;
  }
}

/* External link indicator */
a[target="_blank"]:not(.btn-h1):not(.btn-h2):not(.btn-np):not(.btn-ng)::after {
  content: " ↗";
  font-size: 0.75em;
  opacity: 0.5;
}

/* Lazy images */
img[loading="lazy"] { content-visibility: auto; }