/* style.css — Majic design tokens + component styles
   Art direction: enterprise AI infrastructure. Deep near-black slate surfaces,
   electric violet primary accent, cool teal secondary. NVIDIA/Vercel/Linear register. */

:root,
[data-theme='light'] {
  /* Surfaces — cool slate, light mode kept minimal since product is dark-native */
  --color-bg: #f5f6f8;
  --color-surface: #ffffff;
  --color-surface-2: #eef0f4;
  --color-surface-offset: #e6e8ee;
  --color-border: #d7dae2;
  --color-divider: #e0e3ea;

  --color-text: #10121a;
  --color-text-muted: #565b6b;
  --color-text-faint: #9297a6;
  --color-text-inverse: #f5f6f8;

  --color-primary: #6d5cff;
  --color-primary-hover: #5847e6;
  --color-primary-active: #4636c2;
  --color-primary-highlight: #e7e3ff;

  --color-teal: #16d4c8;
  --color-teal-highlight: #d3f7f3;

  --color-warning: #b9711a;
  --color-error: #d1477a;
  --color-success: #2fae6b;

  --radius-sm: 0.375rem;
  --radius-md: 0.625rem;
  --radius-lg: 1rem;
  --radius-xl: 1.5rem;
  --radius-full: 9999px;

  --transition-interactive: 180ms cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-in: cubic-bezier(0.4, 0, 1, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);

  --shadow-sm: 0 1px 2px oklch(0.15 0.02 280 / 0.08);
  --shadow-md: 0 8px 24px oklch(0.15 0.02 280 / 0.12);
  --shadow-lg: 0 20px 48px oklch(0.15 0.02 280 / 0.18);
  --shadow-glow: 0 0 0 1px oklch(0.55 0.24 280 / 0.4), 0 0 32px oklch(0.55 0.24 280 / 0.25);

  --content-narrow: 640px;
  --content-default: 960px;
  --content-wide: 1200px;
  --content-full: 100%;

  --font-display: 'Cabinet Grotesk', 'Segoe UI', sans-serif;
  --font-body: 'Satoshi', 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', 'SF Mono', monospace;
}

/* DARK MODE — this product is dark-native; dark is the default experience */
[data-theme='dark'] {
  --color-bg: #08090d;
  --color-surface: #0f1117;
  --color-surface-2: #141722;
  --color-surface-offset: #191c29;
  --color-border: #262a3a;
  --color-divider: #1c1f2c;

  --color-text: #e7e8ee;
  --color-text-muted: #9297ab;
  --color-text-faint: #5b5f70;
  --color-text-inverse: #08090d;

  --color-primary: #8b7bff;
  --color-primary-hover: #a396ff;
  --color-primary-active: #7364f0;
  --color-primary-highlight: #201c3d;

  --color-teal: #2ee9dc;
  --color-teal-highlight: #10312f;

  --color-warning: #e0a338;
  --color-error: #ef6a9a;
  --color-success: #3ecf8e;

  --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
  --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
  --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);
  --shadow-glow: 0 0 0 1px oklch(0.68 0.19 280 / 0.5), 0 0 40px oklch(0.68 0.19 280 / 0.3);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme='light']) {
    --color-bg: #08090d;
    --color-surface: #0f1117;
    --color-surface-2: #141722;
    --color-surface-offset: #191c29;
    --color-border: #262a3a;
    --color-divider: #1c1f2c;
    --color-text: #e7e8ee;
    --color-text-muted: #9297ab;
    --color-text-faint: #5b5f70;
    --color-text-inverse: #08090d;
    --color-primary: #8b7bff;
    --color-primary-hover: #a396ff;
    --color-primary-active: #7364f0;
    --color-primary-highlight: #201c3d;
    --color-teal: #2ee9dc;
    --color-teal-highlight: #10312f;
    --color-warning: #e0a338;
    --color-error: #ef6a9a;
    --color-success: #3ecf8e;
    --shadow-sm: 0 1px 2px oklch(0 0 0 / 0.4);
    --shadow-md: 0 8px 24px oklch(0 0 0 / 0.45);
    --shadow-lg: 0 24px 56px oklch(0 0 0 / 0.55);
    --shadow-glow: 0 0 0 1px oklch(0.68 0.19 280 / 0.5), 0 0 40px oklch(0.68 0.19 280 / 0.3);
  }
}

/* ---------- Type scale ---------- */
:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-3xl: clamp(2.5rem, 1rem + 4vw, 5rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;
  --space-24: 6rem;
  --space-32: 8rem;
}

/* ---------- Layout primitives ---------- */
.wrap {
  width: 100%;
  max-width: var(--content-wide);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

.wrap-narrow {
  width: 100%;
  max-width: var(--content-default);
  margin-inline: auto;
  padding-inline: clamp(var(--space-5), 4vw, var(--space-12));
}

section {
  padding-block: clamp(var(--space-16), 8vw, var(--space-32));
  position: relative;
}

/* subtle grid texture background, technical without being decorative-blob */
.grid-texture {
  background-image:
    linear-gradient(oklch(from var(--color-text) l c h / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, oklch(from var(--color-text) l c h / 0.035) 1px, transparent 1px);
  background-size: 56px 56px;
  background-position: center top;
}

/* ---------- Typography ---------- */
h1, h2, h3, .font-display {
  font-family: var(--font-display);
  font-weight: 650;
  letter-spacing: -0.02em;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

.eyebrow::before {
  content: '';
  width: 6px;
  height: 6px;
  border-radius: var(--radius-full);
  background: currentColor;
  box-shadow: 0 0 8px currentColor;
}

.text-muted { color: var(--color-text-muted); }
.text-faint { color: var(--color-text-faint); }
.mono { font-family: var(--font-mono); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: var(--text-sm);
  font-weight: 600;
  padding: var(--space-4) var(--space-6);
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  min-height: 44px;
  white-space: nowrap;
  transition:
    background var(--transition-interactive),
    color var(--transition-interactive),
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: var(--shadow-sm);
}
.btn-primary:hover {
  background: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: var(--shadow-glow);
}
.btn-primary:active {
  background: var(--color-primary-active);
  transform: translateY(0);
}

.btn-secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}
.btn-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  transform: translateY(-1px);
}
.btn-secondary:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--color-text-muted);
}
.btn-ghost:hover { color: var(--color-text); }

.btn-lg {
  padding: var(--space-5) var(--space-8);
  font-size: var(--text-base);
  min-height: 56px;
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

.btn-block { width: 100%; }

/* ---------- Cards ---------- */
.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
}

.card-interactive {
  transition:
    border-color var(--transition-interactive),
    box-shadow var(--transition-interactive),
    transform var(--transition-interactive);
}
.card-interactive:hover {
  border-color: oklch(from var(--color-primary) l c h / 0.5);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

/* ---------- Nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(16px) saturate(140%);
  background: oklch(from var(--color-bg) l c h / 0.72);
  border-bottom: 1px solid var(--color-divider);
}

.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: var(--space-4);
  gap: var(--space-3);
}

.logo-lockup {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--color-text);
  text-decoration: none;
}
.logo-lockup span {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--text-base);
  letter-spacing: -0.01em;
}
.logo-lockup .domain-tag {
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  font-weight: 400;
}

@media (max-width: 640px) {
  .logo-lockup .domain-tag { display: none; }
  .site-header .wrap { flex-wrap: nowrap; }
  .site-header nav { gap: var(--space-1) !important; }
  .site-header .btn-secondary.btn { padding-inline: var(--space-4); font-size: var(--text-xs); }
}

@media (max-width: 420px) {
  .logo-lockup span { font-size: var(--text-sm); }
  .site-header .btn { padding-inline: var(--space-3); }
  .onboarder-label { display: none; }
}

.theme-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-full);
  color: var(--color-text-muted);
}
.theme-toggle:hover { color: var(--color-text); background: var(--color-surface-2); }

/* ---------- Skip link ---------- */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--color-primary);
  color: #fff;
  padding: var(--space-2) var(--space-4);
  z-index: 100;
  border-radius: var(--radius-sm);
}
.skip-link:focus { left: var(--space-4); top: var(--space-4); }

/* ---------- Progress step indicator ---------- */
.flow-steps {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-mono);
  font-size: var(--text-xs);
  color: var(--color-text-faint);
  overflow-x: auto;
  padding-bottom: var(--space-1);
  scrollbar-width: none;
}
.flow-steps::-webkit-scrollbar { display: none; }
.flow-steps .step {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex: 0 0 auto;
  white-space: nowrap;
}
.flow-steps .dot {
  width: 8px;
  height: 8px;
  border-radius: var(--radius-full);
  background: var(--color-border);
  transition: background var(--transition-interactive), box-shadow var(--transition-interactive);
}
.flow-steps .step.active .dot {
  background: var(--color-primary);
  box-shadow: 0 0 10px oklch(from var(--color-primary) l c h / 0.7);
}
.flow-steps .step.done .dot { background: var(--color-teal); }
.flow-steps .sep { width: 24px; height: 1px; background: var(--color-border); flex: 0 0 auto; }

@media (max-width: 640px) {
  .flow-steps .sep { width: 14px; }
  .flow-steps { gap: var(--space-1); }
}

/* ---------- Scroll reveal (opacity/clip-path only, no CLS) ---------- */
.reveal {
  opacity: 1;
}
@supports (animation-timeline: view()) {
  .reveal {
    opacity: 0;
    animation: reveal-fade linear both;
    animation-timeline: view();
    animation-range: entry 0% entry 40%;
  }
}
@keyframes reveal-fade {
  to { opacity: 1; }
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--color-divider);
  padding-block: var(--space-12);
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  align-items: center;
  justify-content: space-between;
}

@media (max-width: 640px) {
  .site-footer .wrap { flex-direction: column; align-items: flex-start; }
}