/* ═══════════════════════════════════════════════════════════════════════════
   RIFT CMS Design System v1.0.0
   Dark, authoritative government-grade design.
   USWDS-compliant structures · Section 508 accessible · Geist Mono + Inter
   ═══════════════════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Geist+Mono:wght@400;500;600;700&family=Inter:wght@400;500;600;700&display=swap');

/* ── CSS Custom Properties ────────────────────────────────────────────────── */

:root {
  /* Renderer integration — publisher uses this to offset body below the fixed header */
  --cms-header-height: 60px;

  /* Brand ember */
  --rift-primary: #ff4d2e;
  --rift-primary-dim: #7a2415;
  --rift-primary-glow: rgba(255, 77, 46, 0.18);

  /* Surface hierarchy */
  --rift-void: #09090b;
  --rift-surface: #18181b;
  --rift-surface-raised: #27272a;
  --rift-border: #3f3f46;
  --rift-border-subtle: #27272a;

  /* Text */
  --rift-text: #fafafa;
  --rift-text-muted: #a1a1aa;
  --rift-text-subtle: #71717a;

  /* Semantic */
  --rift-success: #22c55e;
  --rift-warning: #f59e0b;
  --rift-error: #ef4444;
  --rift-info: #3b82f6;

  /* M3 surface scale */
  --rift-surface-dim: #1f0f0c;
  --rift-surface-bright: #483531;
  --rift-surface-container-lowest: #190a08;
  --rift-surface-container-low: #281714;
  --rift-surface-container: #2c1b18;
  --rift-surface-container-high: #382622;
  --rift-surface-container-highest: #43302c;
  --rift-on-surface: #fbdcd6;
  --rift-on-surface-variant: #e5beb6;
  --rift-inverse-surface: #fbdcd6;
  --rift-inverse-on-surface: #3f2c28;
  --rift-outline: #ac8982;
  --rift-outline-variant: #5c403a;
  --rift-surface-tint: #ffb4a5;

  /* Primary M3 scale */
  --rift-on-primary: #650a00;
  --rift-primary-container: #ff5637;
  --rift-on-primary-container: #590800;
  --rift-inverse-primary: #ba1b00;
  --rift-primary-fixed: #ffdad3;
  --rift-primary-fixed-dim: #ffb4a5;
  --rift-on-primary-fixed: #3f0400;
  --rift-on-primary-fixed-variant: #8e1300;

  /* Secondary (zinc) */
  --rift-secondary: #c8c5ca;
  --rift-on-secondary: #303033;
  --rift-secondary-container: #47464a;
  --rift-on-secondary-container: #b6b4b8;

  /* Tertiary (cyan) */
  --rift-tertiary: #64d4fc;
  --rift-on-tertiary: #003544;
  --rift-tertiary-container: #0e9dc3;
  --rift-on-tertiary-container: #002e3c;

  /* Error M3 */
  --rift-on-error: #690005;
  --rift-error-container: #93000a;
  --rift-on-error-container: #ffdad6;

  /* Background */
  --rift-background: #1f0f0c;
  --rift-on-background: #fbdcd6;
  --rift-surface-variant: #43302c;

  /* Typography — fonts */
  --rift-font-brand: 'Geist Mono', 'Courier New', monospace;
  --rift-font-body: 'Inter', 'Helvetica Neue', sans-serif;

  /* Typography — display */
  --rift-fs-display: clamp(2.5rem, 6vw, 5rem);
  --rift-fw-display: 700;
  --rift-lh-display: 1.05;
  --rift-ls-display: -0.03em;

  /* Typography — headline */
  --rift-fs-headline: clamp(1.75rem, 3.5vw, 2.75rem);
  --rift-fw-headline: 600;
  --rift-lh-headline: 1.15;
  --rift-ls-headline: -0.02em;

  /* Typography — subheading */
  --rift-fs-subheading: clamp(1.125rem, 2vw, 1.375rem);
  --rift-fw-subheading: 400;
  --rift-lh-subheading: 1.55;

  /* Typography — body */
  --rift-fs-body: 1rem;
  --rift-fw-body: 400;
  --rift-lh-body: 1.7;

  /* Typography — small */
  --rift-fs-small: 0.875rem;
  --rift-lh-small: 1.6;

  /* Typography — label */
  --rift-fs-label: 0.75rem;
  --rift-fw-label: 500;
  --rift-lh-label: 1.4;
  --rift-ls-label: 0.06em;

  /* Typography — code */
  --rift-fs-code: 0.875rem;
  --rift-lh-code: 1.7;

  /* Spacing */
  --rift-space-xs:  4px;
  --rift-space-sm:  8px;
  --rift-space-md:  16px;
  --rift-space-lg:  24px;
  --rift-space-xl:  40px;
  --rift-space-2xl: 64px;
  --rift-space-3xl: 96px;
  --rift-space-4xl: 128px;
  --rift-max-width: 1280px;

  /* Border radius */
  --rift-radius-none: 0rem;
  --rift-radius-sm:   0.125rem;
  --rift-radius-md:   0.375rem;
  --rift-radius-lg:   0.5rem;
  --rift-radius-xl:   0.75rem;
  --rift-radius-full: 9999px;
  --rift-radius:      0.25rem;

  /* Shadows */
  --rift-shadow-sm:    0 1px 3px rgba(255, 77, 46, 0.04), 0 1px 2px rgba(0, 0, 0, 0.4);
  --rift-shadow-md:    0 4px 12px rgba(255, 77, 46, 0.06), 0 2px 6px rgba(0, 0, 0, 0.5);
  --rift-shadow-lg:    0 12px 32px rgba(255, 77, 46, 0.10), 0 4px 12px rgba(0, 0, 0, 0.6);
  --rift-shadow-hover: 0 0 0 1px rgba(255, 77, 46, 0.5), 0 8px 24px rgba(255, 77, 46, 0.15);
  --rift-shadow-glow:  0 0 32px rgba(255, 77, 46, 0.35), 0 0 8px rgba(255, 77, 46, 0.5);
}

/* ── Reset / Base ─────────────────────────────────────────────────────────── */

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  background-color: var(--rift-void);
  color: var(--rift-text);
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-body);
  font-weight: var(--rift-fw-body);
  line-height: var(--rift-lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--rift-font-brand);
  font-weight: var(--rift-fw-headline);
  line-height: var(--rift-lh-headline);
  letter-spacing: var(--rift-ls-headline);
  color: var(--rift-text);
}

p { margin-bottom: var(--rift-space-md); }
p:last-child { margin-bottom: 0; }

a {
  color: var(--rift-tertiary);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 150ms ease;
}
a:hover { color: var(--rift-primary); }
a:focus-visible {
  outline: 2px solid var(--rift-primary);
  outline-offset: 2px;
  border-radius: var(--rift-radius-sm);
}

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

ul, ol { list-style: none; }

code, pre, kbd {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-code);
  line-height: var(--rift-lh-code);
}

pre {
  background-color: var(--rift-surface);
  border: 1px solid var(--rift-border);
  border-radius: var(--rift-radius-md);
  padding: var(--rift-space-md);
  overflow-x: auto;
}

code {
  background-color: var(--rift-surface-raised);
  border-radius: var(--rift-radius-sm);
  padding: 0.1em 0.35em;
  color: var(--rift-tertiary);
}

/* ── USWDS Accessibility Utilities ───────────────────────────────────────── */

.usa-sr-only,
.rift-sr-only {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

.rift-skip-nav {
  position: absolute;
  top: -100%;
  left: var(--rift-space-md);
  z-index: 9999;
  padding: var(--rift-space-sm) var(--rift-space-md);
  background: var(--rift-primary);
  color: #fff;
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  text-transform: uppercase;
  letter-spacing: var(--rift-ls-label);
  text-decoration: none;
  border-radius: var(--rift-radius-sm);
  transition: top 150ms ease;
}
.rift-skip-nav:focus {
  top: var(--rift-space-md);
}

/* ── Layout ───────────────────────────────────────────────────────────────── */

.rift-container {
  width: 100%;
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
}

.rift-section {
  padding-block: var(--rift-space-2xl);
}

.rift-section--lg {
  padding-block: var(--rift-space-3xl);
}

.rift-grid {
  display: grid;
  gap: var(--rift-space-lg);
}

.rift-grid--3 { grid-template-columns: repeat(3, 1fr); }
.rift-grid--2 { grid-template-columns: repeat(2, 1fr); }
.rift-grid--auto { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }

/* ── Rift Line (Signature Decorative Element) ─────────────────────────────── */

.rift-line {
  position: relative;
  height: 1px;
  overflow: hidden;
  background-color: var(--rift-border);
}

.rift-line__sweep {
  position: absolute;
  top: 0;
  left: 0;
  width: 40%;
  height: 100%;
  background: linear-gradient(
    90deg,
    transparent 0%,
    var(--rift-primary-glow) 30%,
    var(--rift-primary) 50%,
    var(--rift-primary-glow) 70%,
    transparent 100%
  );
  animation: rift-sweep 8s ease-in-out infinite;
}

@keyframes rift-sweep {
  0%   { transform: translateX(-100%); }
  100% { transform: translateX(350%); }
}

/* ── Buttons ──────────────────────────────────────────────────────────────── */

.rift-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--rift-space-sm);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  text-decoration: none;
  border-radius: var(--rift-radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  padding: 10px 24px;
  transition: background-color 150ms ease, border-color 150ms ease, box-shadow 150ms ease, color 150ms ease;
  white-space: nowrap;
  user-select: none;
}

.rift-btn:focus-visible {
  outline: 2px solid var(--rift-primary);
  outline-offset: 2px;
  animation: rift-glow-pulse 1s ease;
}

@keyframes rift-glow-pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 77, 46, 0); }
  50%  { box-shadow: var(--rift-shadow-glow); }
  100% { box-shadow: 0 0 0 0 rgba(255, 77, 46, 0); }
}

/* Primary */
.rift-btn-primary {
  background-color: var(--rift-primary);
  color: #fff;
  border-color: var(--rift-primary);
}
.rift-btn-primary:hover {
  background-color: var(--rift-primary-dim);
  border-color: var(--rift-primary-dim);
  box-shadow: var(--rift-shadow-hover);
  color: #fff;
}

/* Secondary */
.rift-btn-secondary {
  background-color: transparent;
  color: var(--rift-text);
  border-color: var(--rift-border);
}
.rift-btn-secondary:hover {
  border-color: var(--rift-primary);
  color: var(--rift-primary);
  box-shadow: 0 0 0 1px rgba(255, 77, 46, 0.2);
}

/* Ghost */
.rift-btn-ghost {
  background-color: transparent;
  color: var(--rift-text-muted);
  border-color: transparent;
}
.rift-btn-ghost:hover {
  color: var(--rift-text);
  background-color: var(--rift-surface);
}

/* Inverted (for red CTA band) */
.rift-btn-inverted {
  background-color: #fff;
  color: var(--rift-primary);
  border-color: #fff;
}
.rift-btn-inverted:hover {
  background-color: var(--rift-primary-fixed);
  border-color: var(--rift-primary-fixed);
  color: var(--rift-primary-dim);
}

/* Size variants */
.rift-btn-sm { padding: 8px 20px; font-size: 0.7rem; }
.rift-btn-lg { padding: 12px 32px; font-size: var(--rift-fs-label); }

/* ── Cards ────────────────────────────────────────────────────────────────── */

.rift-card {
  background-color: var(--rift-surface);
  border: 1px solid var(--rift-border);
  border-radius: var(--rift-radius-md);
  padding: var(--rift-space-lg);
  transition: border-color 200ms ease, box-shadow 200ms ease, transform 200ms ease;
  position: relative;
}

.rift-card:hover {
  border-color: rgba(255, 77, 46, 0.4);
  box-shadow: var(--rift-shadow-md);
  transform: translateY(-2px);
}

/* Feature card — left edge rift-red accent (the crack motif) */
.rift-card--feature {
  border-left: 3px solid var(--rift-primary);
  padding-left: calc(var(--rift-space-lg) - 2px);
}

.rift-card__icon {
  width: 32px;
  height: 32px;
  color: var(--rift-primary);
  margin-bottom: var(--rift-space-md);
  flex-shrink: 0;
}

.rift-card__title {
  font-family: var(--rift-font-brand);
  font-size: 1.125rem;
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: var(--rift-ls-headline);
  color: var(--rift-text);
  margin-bottom: var(--rift-space-sm);
}

.rift-card__text {
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-body);
  line-height: var(--rift-lh-body);
  color: var(--rift-text-muted);
  margin-bottom: 0;
}

.rift-card__meta {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
  margin-top: var(--rift-space-md);
}

/* ── Chips ────────────────────────────────────────────────────────────────── */

.rift-chip {
  display: inline-flex;
  align-items: center;
  gap: var(--rift-space-xs);
  padding: 3px 10px;
  font-family: var(--rift-font-brand);
  font-size: 0.7rem;
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  border-radius: var(--rift-radius-full);
  border: 1px solid var(--rift-border);
  color: var(--rift-text-muted);
  background-color: var(--rift-surface);
}

.rift-chip--primary {
  background-color: rgba(255, 77, 46, 0.12);
  border-color: rgba(255, 77, 46, 0.3);
  color: var(--rift-primary);
}
.rift-chip--secondary {
  background-color: var(--rift-surface-raised);
  border-color: var(--rift-border);
  color: var(--rift-secondary);
}
.rift-chip--error {
  background-color: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.3);
  color: var(--rift-error);
}
.rift-chip--success {
  background-color: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.3);
  color: var(--rift-success);
}

/* ── Inputs / Forms ───────────────────────────────────────────────────────── */

.rift-field {
  display: flex;
  flex-direction: column;
  gap: var(--rift-space-xs);
}

.rift-label {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-muted);
}

.rift-input {
  width: 100%;
  background-color: var(--rift-surface);
  color: var(--rift-text);
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-body);
  border: 1px solid var(--rift-border);
  border-radius: var(--rift-radius-md);
  padding: 10px var(--rift-space-md);
  transition: border-color 150ms ease, box-shadow 150ms ease;
}
.rift-input::placeholder {
  color: var(--rift-text-subtle);
}
.rift-input:focus {
  outline: none;
  border-color: var(--rift-primary);
  box-shadow: 0 0 0 3px rgba(255, 77, 46, 0.15);
}
.rift-input:focus-visible {
  outline: 2px solid var(--rift-primary);
  outline-offset: 2px;
}

/* ── Alerts ───────────────────────────────────────────────────────────────── */

.rift-alert {
  display: flex;
  gap: var(--rift-space-md);
  padding: var(--rift-space-md) var(--rift-space-lg);
  border-radius: var(--rift-radius-md);
  border: 1px solid var(--rift-border);
  background-color: var(--rift-surface);
}

.rift-alert__heading {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  margin-bottom: var(--rift-space-xs);
}

.rift-alert__message {
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-small);
  color: var(--rift-text-muted);
  margin-bottom: 0;
}

.rift-alert--error {
  border-color: rgba(239, 68, 68, 0.3);
  background-color: rgba(239, 68, 68, 0.05);
}
.rift-alert--error .rift-alert__heading { color: var(--rift-error); }

.rift-alert--warning {
  border-color: rgba(245, 158, 11, 0.3);
  background-color: rgba(245, 158, 11, 0.05);
}
.rift-alert--warning .rift-alert__heading { color: var(--rift-warning); }

.rift-alert--success {
  border-color: rgba(34, 197, 94, 0.3);
  background-color: rgba(34, 197, 94, 0.05);
}
.rift-alert--success .rift-alert__heading { color: var(--rift-success); }

.rift-alert--info {
  border-color: rgba(59, 130, 246, 0.3);
  background-color: rgba(59, 130, 246, 0.05);
}
.rift-alert--info .rift-alert__heading { color: var(--rift-info); }

/* ── Header (Chrome) ──────────────────────────────────────────────────────── */

.rift-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background-color: var(--rift-void);
  border-bottom: 1px solid var(--rift-border);
  height: 60px;
}

.rift-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  gap: var(--rift-space-xl);
}

.rift-header__brand {
  font-family: var(--rift-font-brand);
  font-size: 1.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--rift-primary);
  text-decoration: none;
  text-shadow: var(--rift-shadow-glow);
  flex-shrink: 0;
}
.rift-header__brand:hover {
  color: var(--rift-primary);
  text-shadow: 0 0 48px rgba(255, 77, 46, 0.5), 0 0 12px rgba(255, 77, 46, 0.7);
}

.rift-header__nav {
  display: flex;
  align-items: center;
  gap: var(--rift-space-xl);
  flex: 1;
  justify-content: flex-end;
}

/* ── Main Nav (Chrome) ────────────────────────────────────────────────────── */

.rift-main-nav__list {
  display: flex;
  align-items: center;
  gap: var(--rift-space-lg);
  list-style: none;
}

.rift-main-nav__list a {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-muted);
  text-decoration: none;
  padding-bottom: 2px;
  border-bottom: 1px solid transparent;
  transition: color 150ms ease, border-color 150ms ease;
}
.rift-main-nav__list a:hover,
.rift-main-nav__list a[aria-current="page"] {
  color: var(--rift-primary);
  border-bottom-color: var(--rift-primary);
}

/* Mobile hamburger */
.rift-hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: var(--rift-space-sm);
}
.rift-hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--rift-text);
  transition: transform 150ms ease, opacity 150ms ease;
}

/* Mobile drawer */
.rift-nav-drawer {
  display: none;
  position: fixed;
  top: 60px;
  right: 0;
  bottom: 0;
  width: min(320px, 100vw);
  background-color: var(--rift-surface);
  border-left: 1px solid var(--rift-border);
  padding: var(--rift-space-xl) var(--rift-space-lg);
  z-index: 99;
  flex-direction: column;
  gap: var(--rift-space-lg);
}
.rift-nav-drawer.is-open { display: flex; }

/* ── Footer (Chrome) ──────────────────────────────────────────────────────── */

.rift-footer {
  background-color: var(--rift-void);
  border-top: 1px solid var(--rift-border);
  padding-block: var(--rift-space-2xl);
}

.rift-footer__inner {
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--rift-space-2xl);
  align-items: start;
}

.rift-footer__brand {
  font-family: var(--rift-font-brand);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--rift-primary);
  text-shadow: var(--rift-shadow-glow);
  margin-bottom: var(--rift-space-sm);
}

.rift-footer__tagline {
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-small);
  color: var(--rift-text-muted);
  line-height: var(--rift-lh-body);
}

.rift-footer__nav {
  display: flex;
  flex-direction: column;
  gap: var(--rift-space-sm);
  align-items: flex-end;
}

.rift-footer__nav a {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-muted);
  text-decoration: none;
  transition: color 150ms ease;
}
.rift-footer__nav a:hover { color: var(--rift-primary); }

.rift-footer__copyright {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
  margin-top: var(--rift-space-lg);
}

/* ── Breadcrumb (Chrome) ──────────────────────────────────────────────────── */

.rift-breadcrumb {
  padding-block: var(--rift-space-md);
  border-bottom: 1px solid var(--rift-border-subtle);
}

.rift-breadcrumb__list {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--rift-space-xs);
  list-style: none;
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
}

.rift-breadcrumb__list li {
  display: flex;
  align-items: center;
  gap: var(--rift-space-xs);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-muted);
}
.rift-breadcrumb__list li::after {
  content: '/';
  color: var(--rift-text-subtle);
}
.rift-breadcrumb__list li:last-child::after { display: none; }
.rift-breadcrumb__list a { color: var(--rift-text-muted); text-decoration: none; }
.rift-breadcrumb__list a:hover { color: var(--rift-primary); }
.rift-breadcrumb__list [aria-current="page"] { color: var(--rift-text); }

/* ── Left Nav (Chrome) ────────────────────────────────────────────────────── */

.rift-left-nav {
  background-color: var(--rift-surface);
  border-right: 1px solid var(--rift-border);
  padding: var(--rift-space-lg) 0;
  min-width: 220px;
  height: 100%;
}

.rift-left-nav__list {
  display: flex;
  flex-direction: column;
  gap: var(--rift-space-xs);
  list-style: none;
}

.rift-left-nav__list a {
  display: flex;
  align-items: center;
  gap: var(--rift-space-sm);
  padding: var(--rift-space-sm) var(--rift-space-lg);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-muted);
  text-decoration: none;
  border-left: 2px solid transparent;
  transition: color 150ms ease, border-color 150ms ease, background-color 150ms ease;
}
.rift-left-nav__list a:hover {
  color: var(--rift-text);
  background-color: var(--rift-surface-raised);
}
.rift-left-nav__list a[aria-current="page"],
.rift-left-nav__list a.is-active {
  color: var(--rift-primary);
  border-left-color: var(--rift-primary);
  background-color: rgba(255, 77, 46, 0.06);
}

/* ── Hero ─────────────────────────────────────────────────────────────────── */

.rift-hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--rift-void);
  overflow: hidden;
}

/* Subtle zinc grid pattern */
.rift-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.03) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.rift-hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 900px;
  padding-inline: var(--rift-space-lg);
  padding-block: var(--rift-space-4xl) var(--rift-space-3xl);
}

.rift-hero__headline {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-display);
  font-weight: var(--rift-fw-display);
  line-height: var(--rift-lh-display);
  letter-spacing: var(--rift-ls-display);
  color: var(--rift-text);
  text-shadow: var(--rift-shadow-glow);
  margin-bottom: var(--rift-space-lg);
}

.rift-hero__subheading {
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-subheading);
  font-weight: var(--rift-fw-subheading);
  line-height: var(--rift-lh-subheading);
  color: var(--rift-text-muted);
  margin-bottom: var(--rift-space-xl);
  max-width: 640px;
  margin-inline: auto;
}

.rift-hero__actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--rift-space-md);
  flex-wrap: wrap;
}

/* ── Credential Bar ───────────────────────────────────────────────────────── */

.rift-credential-bar {
  background-color: var(--rift-surface);
  border-block: 1px solid var(--rift-border);
  padding-block: var(--rift-space-lg);
}

.rift-credential-bar__inner {
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--rift-space-md);
}

.rift-credential-bar__label {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
}

.rift-credential-bar__logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--rift-space-xl);
  flex-wrap: wrap;
  opacity: 0.5;
  filter: grayscale(1);
}

.rift-credential-bar__logos img {
  height: 28px;
  width: auto;
}

.rift-credential-bar__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--rift-space-xs);
  padding: var(--rift-space-xs) var(--rift-space-md);
  border: 1px solid var(--rift-border);
  border-radius: var(--rift-radius-sm);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
  background-color: var(--rift-surface-raised);
}

/* ── Feature Grid ─────────────────────────────────────────────────────────── */

.rift-feature-grid {
  padding-block: var(--rift-space-3xl);
  background-color: var(--rift-void);
}

.rift-feature-grid__inner {
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
}

.rift-feature-grid__heading {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-headline);
  font-weight: var(--rift-fw-headline);
  line-height: var(--rift-lh-headline);
  letter-spacing: var(--rift-ls-headline);
  color: var(--rift-text);
  text-align: center;
  margin-bottom: var(--rift-space-2xl);
}

.rift-feature-grid__cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--rift-space-lg);
}

/* ── Workflow Diagram ─────────────────────────────────────────────────────── */

.rift-workflow {
  padding-block: var(--rift-space-3xl);
  background-color: var(--rift-surface);
}

.rift-workflow__inner {
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  text-align: center;
}

.rift-workflow__heading {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-headline);
  font-weight: var(--rift-fw-headline);
  line-height: var(--rift-lh-headline);
  letter-spacing: var(--rift-ls-headline);
  color: var(--rift-text);
  margin-bottom: var(--rift-space-2xl);
}

.rift-workflow__stages {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  flex-wrap: wrap;
}

.rift-workflow__stage {
  background-color: var(--rift-surface-raised);
  border: 1px solid var(--rift-border);
  border-radius: var(--rift-radius-md);
  padding: var(--rift-space-md) var(--rift-space-xl);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text);
  position: relative;
}

.rift-workflow__arrow {
  display: flex;
  align-items: center;
  padding-inline: var(--rift-space-sm);
  color: var(--rift-primary);
  font-size: 1.25rem;
}

.rift-workflow__caption {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
  margin-top: var(--rift-space-xl);
}

/* ── Quote Block ──────────────────────────────────────────────────────────── */

.rift-quote {
  background-color: var(--rift-surface);
  padding-block: var(--rift-space-3xl);
}

.rift-quote__inner {
  max-width: 800px;
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  text-align: center;
}

.rift-quote__text {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-headline);
  font-weight: var(--rift-fw-headline);
  line-height: var(--rift-lh-headline);
  letter-spacing: var(--rift-ls-headline);
  color: var(--rift-text);
  margin-bottom: var(--rift-space-xl);
  position: relative;
}

.rift-quote__text::before {
  content: '“';
  color: var(--rift-primary);
  font-size: 4em;
  line-height: 0;
  vertical-align: -0.5em;
  margin-right: 0.05em;
}

.rift-quote__attribution {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  color: var(--rift-text-subtle);
}

/* ── CTA Band ─────────────────────────────────────────────────────────────── */

.rift-cta-band {
  background-color: var(--rift-primary);
  padding-block: var(--rift-space-3xl);
}

.rift-cta-band__inner {
  max-width: var(--rift-max-width);
  margin-inline: auto;
  padding-inline: var(--rift-space-lg);
  text-align: center;
}

.rift-cta-band__headline {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-headline);
  font-weight: var(--rift-fw-headline);
  line-height: var(--rift-lh-headline);
  letter-spacing: var(--rift-ls-headline);
  color: #fff;
  margin-bottom: var(--rift-space-xl);
}

/* ── Prose (Article Typography) ───────────────────────────────────────────── */

.rift-prose {
  font-family: var(--rift-font-body);
  font-size: var(--rift-fs-body);
  line-height: var(--rift-lh-body);
  color: var(--rift-text);
  max-width: 72ch;
}

.rift-prose h1, .rift-prose h2, .rift-prose h3,
.rift-prose h4, .rift-prose h5, .rift-prose h6 {
  font-family: var(--rift-font-brand);
  color: var(--rift-text);
  margin-top: var(--rift-space-2xl);
  margin-bottom: var(--rift-space-md);
}

.rift-prose h1 { font-size: clamp(1.75rem, 3.5vw, 2.75rem); }
.rift-prose h2 { font-size: clamp(1.375rem, 2.5vw, 2rem); }
.rift-prose h3 { font-size: 1.25rem; }

.rift-prose p { margin-bottom: var(--rift-space-md); }

.rift-prose a { color: var(--rift-tertiary); }
.rift-prose a:hover { color: var(--rift-primary); }

.rift-prose ul, .rift-prose ol {
  margin-bottom: var(--rift-space-md);
  padding-left: var(--rift-space-xl);
}
.rift-prose ul { list-style: disc; }
.rift-prose ol { list-style: decimal; }
.rift-prose li { margin-bottom: var(--rift-space-xs); }

.rift-prose blockquote {
  border-left: 3px solid var(--rift-primary);
  padding-left: var(--rift-space-md);
  margin-left: 0;
  color: var(--rift-text-muted);
  font-style: italic;
}

.rift-prose table {
  width: 100%;
  border-collapse: collapse;
  margin-bottom: var(--rift-space-md);
}
.rift-prose th, .rift-prose td {
  padding: var(--rift-space-sm) var(--rift-space-md);
  border: 1px solid var(--rift-border);
  text-align: left;
}
.rift-prose th {
  background-color: var(--rift-surface);
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
  font-weight: var(--rift-fw-label);
  color: var(--rift-text-muted);
}

/* ── Divider ──────────────────────────────────────────────────────────────── */

.rift-divider {
  position: relative;
  margin-block: var(--rift-space-2xl);
  height: 1px;
  background-color: var(--rift-border);
  overflow: hidden;
}

.rift-divider__seed {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 6px;
  height: 6px;
  background-color: var(--rift-primary);
  border-radius: 50%;
  box-shadow: var(--rift-shadow-glow);
}

/* ── Utility Classes ──────────────────────────────────────────────────────── */

.rift-text-primary  { color: var(--rift-primary) !important; }
.rift-text-muted    { color: var(--rift-text-muted) !important; }
.rift-text-subtle   { color: var(--rift-text-subtle) !important; }
.rift-text-error    { color: var(--rift-error) !important; }
.rift-text-success  { color: var(--rift-success) !important; }

.rift-bg-void       { background-color: var(--rift-void) !important; }
.rift-bg-surface    { background-color: var(--rift-surface) !important; }
.rift-bg-primary    { background-color: var(--rift-primary) !important; }

.rift-rounded-sm    { border-radius: var(--rift-radius-sm) !important; }
.rift-rounded-md    { border-radius: var(--rift-radius-md) !important; }
.rift-rounded-full  { border-radius: var(--rift-radius-full) !important; }

.rift-shadow-sm     { box-shadow: var(--rift-shadow-sm) !important; }
.rift-shadow-md     { box-shadow: var(--rift-shadow-md) !important; }
.rift-shadow-glow   { box-shadow: var(--rift-shadow-glow) !important; }

.rift-font-brand    { font-family: var(--rift-font-brand) !important; }
.rift-font-body     { font-family: var(--rift-font-body) !important; }

.rift-label-style {
  font-family: var(--rift-font-brand);
  font-size: var(--rift-fs-label);
  font-weight: var(--rift-fw-label);
  letter-spacing: var(--rift-ls-label);
  text-transform: uppercase;
}

.rift-visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0,0,0,0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}

/* ── Responsive ───────────────────────────────────────────────────────────── */

@media (max-width: 1023px) {
  .rift-feature-grid__cards { grid-template-columns: repeat(2, 1fr); }
  .rift-grid--3 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 767px) {
  .rift-container { padding-inline: var(--rift-space-md); }

  .rift-header__nav .rift-main-nav__list { display: none; }
  .rift-hamburger { display: flex; }

  .rift-hero__headline { font-size: 40px; }
  .rift-hero__actions { flex-direction: column; align-items: stretch; }
  .rift-hero__actions .rift-btn { justify-content: center; }

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

  .rift-footer__inner { grid-template-columns: 1fr; gap: var(--rift-space-xl); }
  .rift-footer__nav { align-items: flex-start; }

  .rift-workflow__stages { flex-direction: column; align-items: center; }

  .rift-quote__text { font-size: 28px; }
  .rift-cta-band__headline { font-size: 28px; }
}

/* ── Reduced Motion ───────────────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
}