/* ObsidianLog marketing site — design tokens & layout
   Obsidian black ground, indigo accent, angular "fracture" motif. */

:root {
  --bg: #0b0b10;
  --bg-raised: #131319;
  --bg-raised-2: #191922;
  --ink: #edebf2;
  --ink-dim: #a9a6b8;
  --ink-faint: #6e6b80;
  --accent: #5b4fe9;
  --accent-glow: #8b7fff;
  --accent-deep: #3e33b8;
  --success: #4ade80;
  --phase-1: #8b7fff;
  --phase-2: #2dd4bf;
  --phase-3: #f0b429;
  --border: rgba(237, 235, 242, 0.09);
  --border-strong: rgba(237, 235, 242, 0.16);
  --radius: 14px;
  --radius-sm: 8px;
  --max: 1280px;
  --font-display: "Unbounded", "Segoe UI", sans-serif;
  --font-body: "Manrope", "Segoe UI", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", "SFMono-Regular", Consolas, monospace;
}

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

html { scroll-behavior: smooth; overflow-x: hidden; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  text-wrap: balance;
  margin: 0;
}

h2 {
  font-size: clamp(1.6rem, 1.2rem + 1.6vw, 2.3rem);
  font-weight: 700;
}

h3 {
  font-size: 1.05rem;
  font-weight: 700;
}

p { margin: 0; }

a { color: inherit; }

code, pre {
  font-family: var(--font-mono);
}

.section {
  padding: 96px 0;
  border-top: 1px solid var(--border);
}

.section-head {
  max-width: 640px;
  margin: 0 0 48px;
}

.eyebrow-label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent-glow);
  letter-spacing: 0.04em;
  margin-bottom: 12px;
}

.section-head p {
  color: var(--ink-dim);
  margin-top: 14px;
  font-size: 1.05rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 22px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.15s ease, border-color 0.15s ease, background 0.15s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}
.btn-primary:hover { background: var(--accent-glow); }

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--border-strong);
}
.btn-secondary:hover { border-color: var(--accent-glow); }

/* --- Nav --- */
.nav {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(11, 11, 16, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo img { height: 22px; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-links a {
  text-decoration: none;
  color: var(--ink-dim);
  font-size: 0.92rem;
  font-weight: 500;
}
.nav-links a:hover { color: var(--ink); }
.nav-cta { display: flex; align-items: center; gap: 14px; }
.nav-mobile-hide { display: flex; }

@media (max-width: 780px) {
  .nav-links { display: none; }
}
@media (max-width: 560px) {
  .nav .wrap { height: 60px; }
  .nav-logo img { height: 18px; }
  .nav-cta .btn-secondary { display: none; }
  .nav-cta .btn { padding: 9px 16px; font-size: 0.85rem; }
}

/* --- Hero --- */
.hero {
  position: relative;
  overflow: hidden;
  padding: 88px 0 110px;
}
.hero .wrap {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 48px;
  align-items: center;
}
.hero .wrap > * { min-width: 0; }
.hero h1 {
  font-size: clamp(2.2rem, 1.6rem + 2.6vw, 3.4rem);
  font-weight: 800;
}
.hero h1 .accent-word {
  background: linear-gradient(100deg, var(--accent-glow), var(--accent));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-sub {
  margin-top: 22px;
  font-size: 1.15rem;
  color: var(--ink-dim);
  max-width: 46ch;
}
.hero-ctas {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}
.fracture-wrap {
  position: relative;
  aspect-ratio: 1 / 1;
}
.fracture-wrap svg { width: 100%; height: 100%; transform-origin: 50% 50%; }
.glow-edge {
  filter: drop-shadow(0 0 6px rgba(139, 127, 255, 0.55));
}
@media (prefers-reduced-motion: no-preference) {
  .glow-edge { animation: pulse-glow 5s ease-in-out infinite; }
  .fracture-wrap svg { animation: drift 9s ease-in-out infinite; }
}
@keyframes pulse-glow {
  0%, 100% { opacity: 0.75; }
  50% { opacity: 1; }
}
@keyframes drift {
  0%, 100% { transform: rotate(-3deg) translateY(0); }
  50% { transform: rotate(3deg) translateY(-10px); }
}

@media (max-width: 900px) {
  .hero .wrap { grid-template-columns: 1fr; }
  .fracture-wrap { max-width: 360px; margin: 0 auto; }
}

/* --- Intro prose --- */
.intro {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}
.intro p {
  font-size: 1.15rem;
  color: var(--ink-dim);
}
.intro p + p { margin-top: 18px; }
.intro strong { color: var(--ink); }

/* --- Feature grid --- */
.grid-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 900px) {
  .grid-features { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 620px) {
  .grid-features { grid-template-columns: 1fr; }
}
.feature-card {
  background: var(--bg-raised);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.feature-icon {
  width: 34px;
  height: 34px;
  margin-bottom: 16px;
  color: var(--accent-glow);
}
.feature-card p {
  margin-top: 10px;
  color: var(--ink-dim);
  font-size: 0.95rem;
}

/* --- Audience chips --- */
.audience-row {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
}
@media (max-width: 980px) {
  .audience-row { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 620px) {
  .audience-row { grid-template-columns: 1fr; }
}
.audience-card {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 18px 16px;
}
.audience-card h4 {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  margin: 0 0 6px;
}
.audience-card p {
  font-size: 0.85rem;
  color: var(--ink-dim);
  margin: 0;
}

/* --- How it works --- */
.pipeline {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: nowrap;
  overflow-x: auto;
  margin-bottom: 56px;
  padding-bottom: 4px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.pipeline .step {
  background: var(--bg-raised);
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  padding: 8px 16px;
  color: var(--ink);
  white-space: nowrap;
  flex: none;
}
.pipeline .arrow { color: var(--ink-faint); }

.tabs {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--bg-raised);
}
.tab-buttons {
  display: flex;
  border-bottom: 1px solid var(--border);
  overflow-x: auto;
}
.tab-btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink-dim);
  background: transparent;
  border: none;
  padding: 16px 22px;
  cursor: pointer;
  white-space: nowrap;
  border-bottom: 2px solid transparent;
}
.tab-btn.active {
  color: var(--ink);
  border-bottom-color: var(--accent-glow);
}
.tab-panel { display: none; padding: 28px; }
.tab-panel.active { display: block; }
.tab-panel .term {
  display: inline-block;
  font-family: var(--font-mono);
  background: rgba(91, 79, 233, 0.16);
  color: var(--accent-glow);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.85rem;
  margin-bottom: 14px;
}
.tab-panel .what {
  color: var(--ink-dim);
  margin-bottom: 18px;
  max-width: 60ch;
}
.code-block {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  overflow-x: auto;
  white-space: pre;
  color: var(--ink);
}
.code-block .comment { color: var(--ink-faint); }
.code-block .out { color: var(--success); }

/* --- Comparison table --- */
.compare-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}
.compare-table th, .compare-table td {
  text-align: left;
  padding: 16px 18px;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}
.compare-table thead th {
  color: var(--ink-faint);
  font-weight: 600;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.compare-table tbody th {
  color: var(--ink);
  font-weight: 600;
  width: 26%;
}
.compare-table td.old { color: var(--ink-dim); }
.compare-table td.new { color: var(--ink); }
.compare-table td.new::before {
  content: "";
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--success);
  margin-right: 8px;
}
.table-scroll { overflow-x: auto; border: 1px solid var(--border); border-radius: var(--radius); }
.table-scroll .compare-table { min-width: 640px; }
.table-scroll td, .table-scroll th { border-color: var(--border); }
.table-scroll tr:last-child td { border-bottom: none; }

/* --- Roadmap: one vertical line per phase (same design on every
   screen size), the three phases stacked by default and laid out as
   three columns once there's room for them side by side. --- */
.timeline {
  max-width: 1200px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
}
@media (min-width: 900px) {
  .timeline { grid-template-columns: repeat(3, 1fr); gap: 72px; align-items: start; }
}

.tl-phase-head {
  margin-bottom: 18px;
  text-align: left;
}
.tl-phase-tag {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--phase-color);
  margin-bottom: 6px;
}
.tl-phase-head h3 {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
}
.tl-phase-sub {
  color: var(--ink-faint);
  font-size: 0.85rem;
  margin-top: 5px;
}

.tl-snake {
  position: relative;
  padding-left: 36px;
}
.tl-snake::before {
  content: "";
  position: absolute;
  left: 9px;
  top: 6px;
  bottom: 6px;
  width: 3px;
  background: var(--phase-color);
  opacity: 0.6;
}

.tl-stop {
  position: relative;
  padding: 10px 0;
  text-align: left;
}
.tl-dot {
  position: absolute;
  left: -36px;
  top: 12px;
  width: 18px;
  height: 18px;
  box-sizing: border-box;
  border-radius: 50%;
  background: var(--bg);
  border: 3px solid var(--phase-color);
}
.tl-stop h4 {
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink);
  margin: 0 0 4px;
}
.tl-stop p {
  margin: 0;
  color: var(--ink-dim);
  font-size: 0.8rem;
}
.tl-stop code { color: var(--ink); }

.tl-shipped {
  padding-left: 36px;
  margin-top: 16px;
}
.tl-shipped-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--success);
  color: #06240f;
  font-weight: 700;
  font-size: 0.82rem;
  padding: 8px 18px;
  border-radius: 999px;
}

/* --- FAQ --- */
.faq-list { display: flex; flex-direction: column; gap: 10px; }
.faq-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 4px 20px;
  background: var(--bg-raised);
}
.faq-item summary {
  cursor: pointer;
  list-style: none;
  padding: 18px 0;
  font-weight: 600;
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--font-mono);
  color: var(--ink-faint);
  font-size: 1.2rem;
  flex: none;
}
.faq-item[open] summary::after { content: "\2212"; }
.faq-item p {
  color: var(--ink-dim);
  padding-bottom: 20px;
  font-size: 0.93rem;
  max-width: 68ch;
}

/* --- Built in the open --- */
.oss-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
@media (max-width: 780px) {
  .oss-grid { grid-template-columns: 1fr; }
}
.oss-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
}
.oss-card p { color: var(--ink-dim); font-size: 0.92rem; margin: 8px 0 16px; }
.oss-card ul { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 8px; }
.oss-card a {
  text-decoration: none;
  color: var(--ink);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.oss-card a:hover { color: var(--accent-glow); }

/* --- Stats strip --- */
.stats-strip {
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  padding: 40px 0;
}
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  text-align: center;
}
@media (max-width: 700px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
}
.stat-num {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 1.2rem + 1.4vw, 2.1rem);
  font-weight: 700;
  color: var(--ink);
}
.stat-label {
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-top: 6px;
}

/* --- Final CTA --- */
.final-cta {
  text-align: center;
  padding: 100px 0;
}
.final-cta h2 { max-width: 20ch; margin: 0 auto; }
.final-cta p { color: var(--ink-dim); margin: 16px auto 34px; max-width: 46ch; }
.final-cta .hero-ctas { justify-content: center; }

/* --- Footer --- */
footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}
.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
}
.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}
.footer-links a {
  color: var(--ink-dim);
  text-decoration: none;
  font-size: 0.88rem;
}
.footer-links a:hover { color: var(--ink); }
.footer-fine {
  color: var(--ink-faint);
  font-size: 0.8rem;
  margin-top: 18px;
}
.footer-fine a { color: var(--ink-faint); text-decoration: underline; }