/* AurelianAegis Attestation Schema — marketing site */

:root {
  --bg-deep: #070a10;
  --bg-surface: #0f141d;
  --bg-elevated: #151c28;
  --border-subtle: rgba(255, 255, 255, 0.08);
  --text-primary: #f1f5f9;
  --text-muted: #94a3b8;
  --accent: #38bdf8;
  --accent-dim: rgba(56, 189, 248, 0.15);
  --accent-strong: #0ea5e9;
  --success: #34d399;
  --radius: 12px;
  --radius-lg: 16px;
  --font-sans: "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  --font-display: "DM Sans", var(--font-sans);
  --shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
  --max: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
  color: var(--text-primary);
  background: var(--bg-deep);
  background-image:
    radial-gradient(ellipse 120% 80% at 50% -20%, rgba(14, 165, 233, 0.18), transparent 50%),
    radial-gradient(ellipse 60% 40% at 100% 50%, rgba(56, 189, 248, 0.06), transparent);
  min-height: 100vh;
}

a {
  color: var(--accent);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
  height: auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(12px);
  background: rgba(7, 10, 16, 0.85);
  border-bottom: 1px solid var(--border-subtle);
}

.site-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0.875rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.05rem;
  letter-spacing: -0.02em;
  color: var(--text-primary);
  text-decoration: none;
}

.brand:hover {
  text-decoration: none;
  color: var(--accent);
}

.nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.5rem 1.25rem;
}

.nav a {
  color: var(--text-muted);
  font-size: 0.875rem;
  font-weight: 500;
}

.nav a:hover {
  color: var(--text-primary);
  text-decoration: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.65rem 1.25rem;
  font-size: 0.9rem;
  font-weight: 600;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}

.btn--primary {
  background: linear-gradient(135deg, var(--accent-strong), #0284c7);
  color: #fff;
  box-shadow: 0 4px 24px rgba(14, 165, 233, 0.35);
}

.btn--primary:hover {
  filter: brightness(1.08);
  text-decoration: none;
  color: #fff;
}

.btn--ghost {
  background: var(--bg-elevated);
  border-color: var(--border-subtle);
  color: var(--text-primary);
}

.btn--ghost:hover {
  border-color: rgba(56, 189, 248, 0.4);
  text-decoration: none;
  color: var(--text-primary);
}

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3.5rem 1.5rem 4rem;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin: 0 0 1rem;
  max-width: 18ch;
}

.hero__lead {
  font-size: 1.125rem;
  color: var(--text-muted);
  max-width: 56ch;
  margin: 0 0 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.5rem;
}

.hero__audience {
  margin: -1.5rem 0 1.5rem;
  color: var(--text-muted);
  max-width: 64ch;
  font-size: 0.95rem;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1.5rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.hero__meta strong {
  color: var(--text-primary);
  font-weight: 600;
}

.section {
  max-width: var(--max);
  margin: 0 auto;
  padding: 3rem 1.5rem;
}

.section--alt {
  background: rgba(15, 20, 29, 0.6);
  border-top: 1px solid var(--border-subtle);
  border-bottom: 1px solid var(--border-subtle);
}

.section__title {
  font-family: var(--font-display);
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0 0 0.5rem;
}

.section__intro {
  color: var(--text-muted);
  max-width: 65ch;
  margin: 0 0 2rem;
}

.subsection {
  margin-top: 2.5rem;
}

.subsection h3 {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
  color: var(--text-primary);
}

.subsection p,
.subsection ul {
  color: var(--text-muted);
  margin: 0;
}

.subsection ul {
  padding-left: 1.25rem;
}

.subsection li {
  margin-bottom: 0.35rem;
}

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

@media (max-width: 900px) {
  .grid-3 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  box-shadow: var(--shadow);
}

.card h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: var(--text-primary);
}

.card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin: 0;
  line-height: 1.55;
}

.pill {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--success);
  background: rgba(52, 211, 153, 0.12);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  margin-bottom: 0.75rem;
}

/* Tier-style comparison (Veritas-inspired) */
.tier-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 900px) {
  .tier-grid {
    grid-template-columns: 1fr;
  }
}

.tier-grid--two {
  grid-template-columns: repeat(2, 1fr);
  max-width: 820px;
  margin-left: auto;
  margin-right: auto;
}

@media (max-width: 900px) {
  .tier-grid--two {
    grid-template-columns: 1fr;
    max-width: none;
  }
}

.tier {
  background: var(--bg-elevated);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
}

.tier__name {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0 0 0.25rem;
}

.tier__tag {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.tier dl {
  margin: 0;
  flex: 1;
}

.tier dt {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-top: 0.85rem;
}

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

.tier dd {
  margin: 0.2rem 0 0;
  font-size: 0.875rem;
  color: var(--text-primary);
}

/* Module tiles */
.modules {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

@media (max-width: 700px) {
  .modules {
    grid-template-columns: 1fr;
  }
}

.module {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.35rem;
}

.module__id {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.module h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.75rem;
}

.module ul {
  margin: 0;
  padding-left: 1.1rem;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.module li {
  margin-bottom: 0.35rem;
}

.badge-new {
  display: inline-block;
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: var(--accent-dim);
  color: var(--accent);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
  margin-left: 0.35rem;
  vertical-align: middle;
}

.resources {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
  margin-top: 1.5rem;
}

.path-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 900px) {
  .path-grid {
    grid-template-columns: 1fr;
  }
}

.step-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.2rem 1.25rem;
}

.step-card__num {
  display: inline-block;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent);
  background: var(--accent-dim);
  border: 1px solid rgba(56, 189, 248, 0.35);
  border-radius: 999px;
  padding: 0.14rem 0.5rem;
  margin-bottom: 0.6rem;
}

.step-card h4 {
  margin: 0 0 0.45rem;
  font-family: var(--font-display);
}

.step-card p {
  margin: 0 0 0.65rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

@media (max-width: 700px) {
  .resources {
    grid-template-columns: 1fr;
  }
}

.resource {
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius);
  padding: 1.25rem 1.35rem;
  background: var(--bg-elevated);
}

.resource h4 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
}

.resource p {
  font-size: 0.875rem;
  color: var(--text-muted);
  margin: 0 0 0.75rem;
}

.cta-band {
  text-align: center;
  padding: 3.5rem 1.5rem;
  background: linear-gradient(180deg, rgba(15, 20, 29, 0.4), var(--bg-deep));
  border-top: 1px solid var(--border-subtle);
}

.cta-band h2 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  margin: 0 0 0.5rem;
}

.cta-band p {
  color: var(--text-muted);
  max-width: 42ch;
  margin: 0 auto 1.5rem;
}

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--border-subtle);
}

.schema-id {
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 0.75rem;
  word-break: break-all;
  color: var(--text-muted);
  background: var(--bg-elevated);
  padding: 0.75rem 1rem;
  border-radius: var(--radius);
  border: 1px solid var(--border-subtle);
  margin-top: 1rem;
}

.trust-row {
  margin-top: 1rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.55rem;
}

.trust-pill {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #7dd3fc;
  background: rgba(2, 132, 199, 0.15);
  border: 1px solid rgba(56, 189, 248, 0.32);
  border-radius: 999px;
  padding: 0.26rem 0.62rem;
}

.section-cta {
  margin-top: 2rem;
  padding: 1.1rem 1.2rem;
  border: 1px solid rgba(56, 189, 248, 0.25);
  border-radius: var(--radius);
  background:
    linear-gradient(140deg, rgba(56, 189, 248, 0.16), rgba(56, 189, 248, 0.05)),
    var(--bg-elevated);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
}

.section-cta h3 {
  margin: 0 0 0.25rem;
  font-family: var(--font-display);
  font-size: 1.05rem;
}

.section-cta p {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
  max-width: 60ch;
}

.section-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.section-cta--alt {
  border-color: var(--border-subtle);
  background:
    linear-gradient(150deg, rgba(2, 132, 199, 0.13), rgba(15, 20, 29, 0.5)),
    var(--bg-surface);
}

@media (max-width: 850px) {
  .section-cta {
    flex-direction: column;
    align-items: flex-start;
  }
}