/*
 * Quantum Desk
 * Dark, restrained, infrastructure-first.
 *
 * Palette: graphite neutrals + one steel-blue signal accent.
 * Type: Geist (display + body), Geist Mono (labels, numerals).
 * Radius rule: interactive controls and inputs 8px; large panels 14px. Nothing else.
 */

:root {
  --bg: #111113;
  --bg-raised: #17171a;
  --surface: #1b1b1f;
  --border: #29292e;
  --border-strong: #3a3a41;
  --text: #ececef;
  --text-2: #a6a6ad;
  --text-3: #84848d;
  --accent: #7fb2d6;
  --accent-strong: #2f6f9f;
  --accent-hover: #397aa9;
  --accent-tint: rgba(127, 178, 214, 0.12);
  --radius-control: 8px;
  --radius-panel: 14px;
  --font-sans: 'Geist', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-mono: 'Geist Mono', ui-monospace, 'SF Mono', Menlo, monospace;
  --header-h: 68px;
  /* z-scale: 1 content overlaps, 10 sticky header, 20 skip link */
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-sans);
  background-color: var(--bg);
  color: var(--text-2);
  line-height: 1.65;
  font-size: 1rem;
  -webkit-font-smoothing: antialiased;
}

/* Fine grain to break digital flatness. Fixed + pointer-events-none, so no repaint cost. */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 5;
  pointer-events: none;
  opacity: 0.035;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='120' height='120' filter='url(%23n)'/%3E%3C/svg%3E");
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s ease;
}

ul,
ol {
  list-style: none;
}

.container {
  width: 100%;
  max-width: 1160px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* Typography */
h1,
h2,
h3 {
  color: var(--text);
  font-weight: 600;
  text-wrap: balance;
}

h1 {
  font-size: clamp(2.5rem, 5.5vw, 3.9rem);
  line-height: 1.04;
  letter-spacing: -0.03em;
  font-weight: 700;
}

h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.4rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 1.25rem;
}

h3 {
  font-size: 1.125rem;
  line-height: 1.35;
  letter-spacing: -0.01em;
  margin-bottom: 0.5rem;
}

p {
  max-width: 65ch;
  text-wrap: pretty;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--text-3);
  margin-bottom: 1.25rem;
}

/* Accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 20;
  padding: 0.6rem 1rem;
  background: var(--accent-strong);
  color: #f7fbff;
  border-radius: var(--radius-control);
  font-weight: 500;
}

.skip-link:focus {
  top: 0.75rem;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: var(--radius-control);
  font-weight: 500;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  text-align: center;
  transition: background-color 0.2s ease, border-color 0.2s ease, transform 0.15s ease;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background-color: var(--accent-strong);
  color: #f7fbff;
}

.btn-primary:hover {
  background-color: var(--accent-hover);
  transform: translateY(-1px);
}

.btn-primary:active {
  transform: translateY(0) scale(0.98);
}

.btn-ghost {
  border-color: var(--border-strong);
  color: var(--text);
  background: transparent;
}

.btn-ghost:hover {
  border-color: var(--text-3);
  background: var(--bg-raised);
}

.btn-sm {
  padding: 0.45rem 1rem;
  font-size: 0.9rem;
}

.btn-block {
  width: 100%;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: var(--header-h);
  z-index: 10;
  background: rgba(17, 17, 19, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  min-width: 0;
}

.brand-mark {
  width: 36px;
  height: 36px;
  flex-shrink: 0;
  border-radius: 50%;
}

.brand-name {
  font-weight: 600;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
  color: var(--text);
  white-space: nowrap;
}

.nav ul {
  display: flex;
  gap: 1.9rem;
  align-items: center;
}

.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-2);
}

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

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

.nav a.btn-primary,
.nav a.btn-primary:hover {
  color: #f7fbff;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 42px;
  height: 42px;
  padding: 0 9px;
  background: transparent;
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  cursor: pointer;
}

.nav-toggle-bar {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 1px;
  transition: transform 0.25s ease;
}

.nav-open .nav-toggle-bar:first-child {
  transform: translateY(4px) rotate(45deg);
}

.nav-open .nav-toggle-bar:last-child {
  transform: translateY(-4px) rotate(-45deg);
}

/* Hero */
.hero {
  padding: calc(var(--header-h) + 5.5rem) 0 6.5rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: -20%;
  right: -12%;
  width: 60vw;
  height: 60vw;
  max-width: 820px;
  max-height: 820px;
  background: radial-gradient(circle, rgba(127, 178, 214, 0.12) 0%, transparent 62%);
  pointer-events: none;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 3rem;
  align-items: center;
  position: relative;
}

.hero-sub {
  font-size: 1.2rem;
  line-height: 1.6;
  margin: 1.5rem 0 2.25rem;
  max-width: 34rem;
}

.hero-actions {
  display: flex;
  gap: 0.9rem;
  flex-wrap: wrap;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
}

.hero-mark {
  width: min(300px, 100%);
  height: auto;
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1px solid var(--border-strong);
  box-shadow: 0 24px 70px rgba(47, 111, 159, 0.28);
}

/* Sections: shared rhythm, slightly heavier bottom padding */
.about,
.services,
.rag,
.roadmap,
.contact {
  padding: 6rem 0 6.75rem;
}

/* About */
.about {
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 7fr) minmax(0, 4fr);
  gap: 4rem;
  align-items: start;
}

.about-text p + p {
  margin-top: 1.25rem;
}

.about-facts {
  border-top: 1px solid var(--border-strong);
  margin-top: 0.6rem;
}

.fact {
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--border);
}

.fact:last-child {
  border-bottom: none;
}

.fact dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  margin-bottom: 0.3rem;
}

.fact dd {
  color: var(--text);
  font-weight: 500;
}

/* Services */
.services {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.services-grid {
  display: grid;
  grid-template-columns: minmax(0, 4fr) minmax(0, 8fr);
  gap: 4rem;
  align-items: start;
}

.services-intro {
  position: sticky;
  top: calc(var(--header-h) + 2rem);
}

.services-intro p {
  color: var(--text-3);
}

.services-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.75rem 3rem;
}

.service {
  border-top: 1px solid var(--border-strong);
  padding-top: 1.25rem;
}

.service p {
  font-size: 0.97rem;
}

/* Infrastructure band */
.infra {
  padding: 7rem 0;
  background:
    radial-gradient(ellipse 70% 90% at 15% 0%, rgba(127, 178, 214, 0.09) 0%, transparent 60%),
    var(--bg);
}

.infra-inner {
  max-width: 46rem;
}

.infra h2 {
  font-size: clamp(2rem, 4vw, 3rem);
}

.infra p {
  font-size: 1.15rem;
  margin-bottom: 2rem;
}

.infra-points {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.infra-points li {
  font-family: var(--font-mono);
  font-size: 0.82rem;
  color: var(--text);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  padding: 0.5rem 0.85rem;
  background: var(--bg-raised);
}

/* RAG */
.rag {
  border-top: 1px solid var(--border);
}

.rag > .container > h2 {
  margin-bottom: 3rem;
  max-width: 24ch;
}

.rag-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 4rem;
  align-items: center;
}

.rag-benefits {
  margin-top: 1.75rem;
  display: grid;
  gap: 1.1rem;
}

.rag-benefits li {
  padding-left: 1.1rem;
  border-left: 2px solid var(--accent);
}

.rag-benefits strong {
  color: var(--text);
  font-weight: 600;
}




/* Roadmap */
.roadmap {
  background: var(--bg-raised);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.roadmap h2 {
  margin-bottom: 3rem;
}

.steps {
  max-width: 44rem;
  display: grid;
  gap: 2.75rem;
}

.step {
  display: grid;
  grid-template-columns: 4rem 1fr;
  gap: 1.5rem;
  align-items: start;
}

.step-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 500;
  line-height: 1.1;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
}

.step-body p {
  font-size: 0.97rem;
}

/* Contact */
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
  gap: 4rem;
  align-items: start;
}

.contact-info > p {
  margin-bottom: 2.25rem;
}

.contact-details {
  display: grid;
  gap: 1.4rem;
}

.contact-row dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--text-3);
  margin-bottom: 0.25rem;
}

.contact-row dd {
  color: var(--text);
  font-weight: 500;
}

.contact-row a:hover {
  color: var(--accent);
}

.contact-form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-panel);
  padding: 2rem;
}

/* Honeypot: visually hidden, still in the DOM for the relay */
.hp-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-group {
  margin-bottom: 1.3rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.45rem;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.7rem 0.85rem;
  background: var(--bg);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-control);
  color: var(--text);
  font-family: inherit;
  font-size: 1rem;
  transition: border-color 0.2s ease;
}

.form-group textarea {
  resize: vertical;
  min-height: 110px;
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-group input.invalid,
.form-group textarea.invalid {
  border-color: var(--accent);
  background: var(--accent-tint);
}

.form-status {
  margin-top: 1rem;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-control);
  font-size: 0.93rem;
  font-weight: 500;
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(46, 160, 88, 0.12);
  color: #63d391;
  border: 1px solid rgba(46, 160, 88, 0.4);
}

.form-status.error {
  display: block;
  background: rgba(202, 62, 70, 0.1);
  color: #ef9da0;
  border: 1px solid rgba(202, 62, 70, 0.4);
}

.form-status.sending {
  display: block;
  background: var(--bg);
  color: var(--text-2);
  border: 1px solid var(--border-strong);
}

/* Footer */
.footer {
  border-top: 1px solid var(--border);
  padding: 3.5rem 0 2.5rem;
  background: var(--bg);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 2.5rem;
  flex-wrap: wrap;
  margin-bottom: 2.75rem;
}

.footer-brand a {
  font-weight: 600;
  color: var(--text);
}

.footer-brand p {
  margin-top: 0.4rem;
  font-size: 0.93rem;
  color: var(--text-3);
  max-width: 30rem;
}

.footer-nav ul {
  display: flex;
  gap: 1.75rem;
  flex-wrap: wrap;
}

.footer-nav a {
  font-size: 0.93rem;
  color: var(--text-2);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}

.footer-bottom p {
  font-size: 0.88rem;
  color: var(--text-3);
}

.footer-contact-line {
  font-family: var(--font-mono);
  font-size: 0.82rem;
}

/* Scroll reveal (gated by prefers-reduced-motion below).
   Hidden state only applies once JS has tagged <html class="js">,
   so content stays visible when scripts are blocked or fail. */
html.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition:
    opacity 0.6s cubic-bezier(0.16, 1, 0.3, 1),
    transform 0.6s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: calc(var(--d, 0) * 90ms);
}

html.js .reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Anchor offset for the fixed header */
section[id],
[id] {
  scroll-margin-top: calc(var(--header-h) + 1.5rem);
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }

  .btn,
  .btn-primary:hover {
    transition: none;
    transform: none;
  }
}

/* Responsive */
@media (max-width: 992px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
    justify-content: flex-start;
  }

  .hero-mark {
    width: 130px;
  }

  .about-grid,
  .services-grid,
  .rag-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 2.75rem;
  }

  .services-intro {
    position: static;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: calc(var(--header-h) + 3rem) 0 4rem;
  }

  .about,
  .services,
  .rag,
  .roadmap,
  .contact {
    padding: 4rem 0 4.5rem;
  }

  .infra {
    padding: 4.5rem 0;
  }

  .services-list {
    grid-template-columns: 1fr;
    gap: 2.25rem;
  }

  .step {
    grid-template-columns: 3rem 1fr;
    gap: 1rem;
  }

  .nav-toggle {
    display: flex;
  }

  .nav {
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    display: none;
  }

  .nav-open .nav {
    display: block;
  }

  .nav ul {
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0.75rem 1.5rem 1.25rem;
  }

  .nav ul li {
    width: 100%;
  }

  .nav ul a {
    display: block;
    padding: 0.8rem 0;
    font-size: 1.05rem;
  }

  .nav ul a.btn {
    margin-top: 0.5rem;
    text-align: center;
  }

  .footer-top,
  .footer-bottom {
    flex-direction: column;
  }
}

@media (max-width: 420px) {
  .brand-name {
    font-size: 0.92rem;
  }
}

/* Third-party voice widget overrides */
.omnivox-widget {
  background: none !important;
  box-shadow: none !important;
  border: none !important;
}

.omnivox-widget-container {
  background: transparent !important;
  box-shadow: none !important;
}

/* GPU hosting: stat tiles (distinct layout family from .about-facts) */
.gpu-tiles {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 0;
}
.gpu-tile {
  border: 1px solid var(--border-color, #2a2a30);
  border-radius: 14px;
  padding: 18px 16px;
  background: rgba(255, 255, 255, 0.02);
}
.gpu-tile:last-child { grid-column: 1 / -1; }
.gpu-tile dt {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #84848d;
  margin-bottom: 6px;
}
.gpu-tile dd { margin: 0; color: #ececef; font-weight: 500; }
@media (max-width: 640px) { .gpu-tiles { grid-template-columns: 1fr; } }