/* AugreyOS — Enterprise AI-OS Design System
   Dark command center · teal/cyan holographic accents · glassmorphism · neural grid */

:root {
  /* Surfaces — deep navy/near-black base */
  --bg: #07090d;
  --bg-2: #0b0f15;
  --surface: #10151d;
  --surface-2: #141a24;
  --surface-3: #1a212d;
  --border: rgba(140, 200, 220, 0.10);
  --border-strong: rgba(140, 200, 220, 0.22);
  --border-glow: rgba(56, 217, 224, 0.35);

  /* Text */
  --text: #e6edf3;
  --text-muted: #a3b0bf;
  --text-faint: #6b7785;

  /* Accents — teal/cyan holographic */
  --teal: #38d9e0;
  --teal-strong: #6df1f5;
  --cyan-deep: #0fb5b8;
  --teal-glow: rgba(56, 217, 224, 0.45);
  --teal-soft: rgba(56, 217, 224, 0.12);

  /* Semantic */
  --warn: #f6a83a;
  --err: #ef6e8a;
  --ok: #74e0a6;

  /* Type */
  --font-sans: 'Inter', 'Satoshi', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, Menlo, Consolas, monospace;

  --r-sm: 6px;
  --r: 10px;
  --r-lg: 16px;
  --r-xl: 22px;

  --max-w: 1200px;
  --max-w-narrow: 880px;

  --ease: cubic-bezier(.2, .7, .2, 1);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

/* Ambient background — neural grid + radial glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(900px 600px at 15% -10%, rgba(56, 217, 224, 0.10), transparent 60%),
    radial-gradient(800px 600px at 100% 0%, rgba(15, 181, 184, 0.08), transparent 60%),
    radial-gradient(700px 500px at 50% 110%, rgba(56, 217, 224, 0.05), transparent 65%);
  pointer-events: none;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  background-image:
    linear-gradient(rgba(140, 200, 220, 0.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140, 200, 220, 0.045) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse at 50% 30%, #000 30%, transparent 75%);
  pointer-events: none;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  margin: 0 0 0.5em;
  font-weight: 400;
  color: #f1f6fa;
}

h1 {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  line-height: 1.08;
  letter-spacing: -0.03em;
}

h2 {
  font-size: clamp(1.7rem, 3.4vw, 2.4rem);
  line-height: 1.15;
}

h3 {
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  line-height: 1.25;
}

h4 {
  font-size: 1rem;
  line-height: 1.35;
}

p {
  margin: 0 0 1em;
  color: var(--text-muted);
}

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

a:hover {
  color: var(--teal-strong);
}

ul,
ol {
  margin: 0 0 1em;
  padding-left: 1.2em;
  color: var(--text-muted);
}

li {
  margin: 0.25em 0;
}

code,
kbd,
pre {
  font-family: var(--font-mono);
  font-size: 0.92em;
}

code {
  background: rgba(56, 217, 224, 0.08);
  border: 1px solid var(--border);
  padding: 0.1em 0.4em;
  border-radius: 4px;
  color: var(--teal-strong);
}

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

/* Layout */
.container {
  width: min(100% - 40px, var(--max-w));
  margin: 0 auto;
}

.container-narrow {
  width: min(100% - 40px, var(--max-w-narrow));
  margin: 0 auto;
}

section {
  padding: 88px 0;
  position: relative;
}

section.tight {
  padding: 56px 0;
}

.eyebrow {
  display: inline;
  background: var(--teal-soft);
  padding: 1px 12px;
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
  font-size: 0.85em;
  line-height: 1.35;
}

.lede {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 680px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 22px;
  border-radius: var(--r);
  font-weight: 500;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.25s var(--ease);
  font-family: var(--font-sans);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(180deg, var(--teal), var(--cyan-deep));
  color: #04161a;
  box-shadow: 0 8px 32px -8px var(--teal-glow), inset 0 1px 0 rgba(255, 255, 255, 0.25);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 40px -8px var(--teal-glow), inset 0 1px 0 rgba(255, 255, 255, 0.3);
  color: #04161a;
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.025);
  color: var(--text);
  border-color: var(--border-strong);
  backdrop-filter: blur(8px);
}

.btn-ghost:hover {
  border-color: var(--teal);
  color: var(--teal-strong);
  background: var(--teal-soft);
}

.btn-arrow::after {
  content: "→";
  transition: transform 0.25s var(--ease);
}

.btn-arrow:hover::after {
  transform: translateX(3px);
}

/* Glass panel — central component */
.glass {
  background:
    linear-gradient(180deg, rgba(20, 28, 40, 0.85), rgba(12, 18, 26, 0.75));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative;
}

.glass::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(56, 217, 224, 0.35), transparent 40%, transparent 60%, rgba(56, 217, 224, 0.15));
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

/* Navigation */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(7, 9, 13, 0.72);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 0;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #f1f6fa;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  font-size: 1.1rem;
}

.brand:hover {
  color: var(--teal-strong);
}

.brand-mark {
  width: 30px;
  height: 30px;
}

.nav-links {
  display: flex;
  gap: 28px;
  align-items: center;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--teal-strong);
}

.nav-cta {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-strong);
  color: var(--text);
  width: 38px;
  height: 38px;
  border-radius: 8px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}

.nav-toggle svg {
  width: 18px;
  height: 18px;
}

/* Hero */
.hero {
  padding: 96px 0 64px;
  position: relative;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero h1 {
  margin-bottom: 24px;
}

.hero h1 .accent {
  background: linear-gradient(135deg, var(--teal-strong) 0%, var(--teal) 60%, var(--cyan-deep) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.hero-sub {
  font-size: 1.15rem;
  color: var(--text-muted);
  max-width: 560px;
  margin-bottom: 32px;
}

.hero-ctas {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}

.hero-strip {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--text-faint);
  font-size: 0.85rem;
  font-family: var(--font-mono);
}

.hero-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero-strip span::before {
  content: "▸";
  color: var(--teal);
}

/* Hero visual — command center mockup */
.hero-visual {
  position: relative;
  aspect-ratio: 1 / 1;
  max-width: 540px;
  margin-left: auto;
}

/* Trust strip */
.trust-strip {
  padding: 36px 0;
  border-block: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.015);
}

.trust-strip-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.trust-strip-grid .item {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.trust-strip-grid .item span {
  display: block;
  color: var(--teal);
  font-size: 0.72rem;
  margin-bottom: 4px;
}

/* Section headings */
.section-head {
  margin-bottom: 56px;
  max-width: 760px;
}

.section-head.center {
  margin-inline: auto;
  text-align: center;
}

/* Grids */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.grid-4 {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

/* Cards */
.card {
  padding: 28px;
  background:
    linear-gradient(180deg, rgba(20, 28, 40, 0.80), rgba(12, 18, 26, 0.65));
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease), background 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}

.card:hover {
  border-color: var(--border-glow);
  transform: translateY(-2px);
}

.card .ico {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--teal-soft);
  border: 1px solid var(--border-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--teal-strong);
  margin-bottom: 18px;
}

.card .ico svg {
  width: 22px;
  height: 22px;
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.card p {
  font-size: 0.95rem;
  margin-bottom: 0;
}

.card .link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  color: var(--teal);
}

.card .link:hover {
  color: var(--teal-strong);
}

.card.module-card .tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-faint);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  margin-bottom: 12px;
}

/* Steps / lifecycle */
.lifecycle {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  position: relative;
}

.step {
  padding: 24px 20px;
  background: linear-gradient(180deg, rgba(20, 28, 40, 0.7), rgba(12, 18, 26, 0.55));
  border: 1px solid var(--border);
  border-radius: var(--r);
  position: relative;
}

.step .num {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--teal);
  letter-spacing: 0.1em;
}

.step h4 {
  color: #f1f6fa;
  margin: 8px 0 6px;
  font-size: 0.98rem;
}

.step p {
  font-size: 0.86rem;
  margin: 0;
  color: var(--text-muted);
}

/* Numbered lists */
.num-list {
  list-style: none;
  padding: 0;
  counter-reset: nl;
}

.num-list li {
  counter-increment: nl;
  padding: 18px 20px 18px 64px;
  position: relative;
  margin-bottom: 12px;
  border: 1px solid var(--border);
  border-radius: var(--r);
  background: linear-gradient(180deg, rgba(20, 28, 40, 0.55), rgba(12, 18, 26, 0.40));
}

.num-list li::before {
  content: counter(nl, decimal-leading-zero);
  position: absolute;
  left: 20px;
  top: 18px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--teal);
  letter-spacing: 0.05em;
}

.num-list strong {
  color: #f1f6fa;
}

/* Callout */
.callout {
  padding: 20px 24px;
  border-left: 3px solid var(--teal);
  background: var(--teal-soft);
  border-radius: 0 var(--r) var(--r) 0;
  color: var(--text);
}

.callout.warn {
  border-left-color: var(--warn);
  background: rgba(246, 168, 58, 0.07);
}

/* Diagrams */
.diagram-wrap {
  background:
    linear-gradient(180deg, rgba(20, 28, 40, 0.80), rgba(12, 18, 26, 0.65));
  border: 1px solid var(--border);
  border-radius: var(--r-xl);
  padding: 36px;
  position: relative;
  overflow: hidden;
}

.diagram-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 30%, rgba(56, 217, 224, 0.06), transparent 50%),
    radial-gradient(circle at 80% 70%, rgba(15, 181, 184, 0.06), transparent 50%);
  pointer-events: none;
}

/* CTA section */
.cta-section {
  padding: 96px 0;
  position: relative;
  text-align: center;
}

.cta-section .glass {
  padding: 64px 40px;
  text-align: center;
}

.cta-section h2 {
  margin-bottom: 16px;
}

.cta-section .ctas {
  display: inline-flex;
  gap: 12px;
  flex-wrap: wrap;
  justify-content: center;
}

/* Form */
.form {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.field.full {
  grid-column: 1 / -1;
}

.field label {
  font-size: 0.82rem;
  color: var(--text-muted);
  font-family: var(--font-mono);
  letter-spacing: 0.04em;
}

.field input,
.field select,
.field textarea {
  background: rgba(7, 9, 13, 0.6);
  border: 1px solid var(--border-strong);
  color: var(--text);
  padding: 12px 14px;
  border-radius: var(--r);
  font: inherit;
  font-size: 0.95rem;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
}

.field input:focus,
.field select:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px var(--teal-soft);
}

.field textarea {
  min-height: 120px;
  resize: vertical;
}

.field-note {
  font-size: 0.82rem;
  color: var(--text-faint);
  margin-top: 4px;
}

/* Tables */
.kv-table {
  width: 100%;
  border-collapse: collapse;
}

.kv-table th,
.kv-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.94rem;
}

.kv-table th {
  color: var(--text);
  font-weight: 600;
  font-family: var(--font-display);
}

.kv-table td {
  color: var(--text-muted);
}

.kv-table td:first-child {
  color: var(--text);
  font-weight: 500;
  width: 30%;
}

/* Footer */
.footer {
  padding: 64px 0 32px;
  border-top: 1px solid var(--border);
  background: rgba(7, 9, 13, 0.65);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-faint);
  margin-bottom: 14px;
  font-weight: 500;
}

.footer ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer li {
  margin: 8px 0;
}

.footer a {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.footer a:hover {
  color: var(--teal-strong);
}

.footer .brand {
  margin-bottom: 14px;
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  color: var(--text-faint);
  flex-wrap: wrap;
  gap: 12px;
}

/* Module hero variant */
.module-hero {
  padding: 80px 0 48px;
}

.module-meta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--teal);
  margin-bottom: 14px;
}

.module-meta::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--teal);
}

/* Two-col with side panel */
.split {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

/* Pill list */
.pills {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.pill {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  padding: 6px 12px;
  border: 1px solid var(--border-strong);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.025);
}

/* Tabs / category lists for integrations */
.integration-cat {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  background: linear-gradient(180deg, rgba(20, 28, 40, 0.7), rgba(12, 18, 26, 0.55));
}

.integration-cat h3 {
  font-size: 1rem;
}

.integration-cat .pills {
  margin-top: 12px;
}

/* Animations */
@keyframes pulseGlow {

  0%,
  100% {
    opacity: 0.5;
  }

  50% {
    opacity: 1;
  }
}

@keyframes orbit {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

@keyframes dashFlow {
  to {
    stroke-dashoffset: -40;
  }
}

/* Fade-in: content is always visible. JS adds .in for a subtle entry transition when supported. */
.fade-in {
  opacity: 1;
  transform: none;
  transition: opacity 0.5s var(--ease), transform 0.5s var(--ease);
}

/* Responsive */
@media (max-width: 1024px) {
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .hero-visual {
    margin: 0 auto;
    max-width: 480px;
  }

  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .split {
    grid-template-columns: 1fr;
    gap: 32px;
  }

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

@media (max-width: 720px) {
  section {
    padding: 64px 0;
  }

  .hero {
    padding: 48px 0 32px;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .grid-4 {
    grid-template-columns: 1fr 1fr;
  }

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

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

  .trust-strip-grid {
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    text-align: left;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    z-index: 120;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: #07090d;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 26px 60px rgba(0, 0, 0, 0.45);
    padding: 10px 20px 18px;
    transform: translateY(-12px);
    opacity: 1;
    visibility: hidden;
    pointer-events: none;
    transition: transform 0.2s var(--ease), visibility 0s linear 0.2s;
  }

  .nav-links.open {
    transform: translateY(0);
    visibility: visible;
    pointer-events: auto;
    transition: transform 0.2s var(--ease), visibility 0s;
  }

  .nav-links li {
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
  }

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

  .nav-toggle {
    display: inline-flex;
  }

  .nav-cta .btn {
    padding: 10px 16px;
    font-size: 0.88rem;
  }

  .nav-cta .btn-ghost {
    display: none;
  }

  .cta-section .glass {
    padding: 40px 24px;
  }
}

@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .fade-in {
    opacity: 1;
    transform: none;
  }
}

/* Focus visible */
:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Utilities */
.text-center {
  text-align: center;
}

.text-muted {
  color: var(--text-muted);
}

.text-teal {
  color: var(--teal-strong);
}

.mono {
  font-family: var(--font-mono);
}

.mt-0 {
  margin-top: 0;
}

.mt-2 {
  margin-top: 16px;
}

.mt-4 {
  margin-top: 32px;
}

.mb-0 {
  margin-bottom: 0;
}