/* ================================================================
   KAHAL ATLAS — Marketing Site Stylesheet
   Design System + Component Library + Section Styles
   ================================================================
   Phase 2 Elevation Pass:
   - Motion token system
   - Layered elevation model
   - Hero atmospheric depth + vignette
   - Module crossfade signature interaction
   - Atlas orbital/contour motif system
   - Security institutional gravity
   - Card precision surfaces
   - Section rhythm + spacing variation
   ================================================================ */

/* --- Design Tokens -------------------------------------------- */
:root {
  /* Brand */
  --indigo: #4E47DD;
  --indigo-hover: #3F39C4;
  --indigo-light: #EEEDFC;
  --indigo-glow: rgba(78, 71, 221, 0.12);
  --ink: #20293A;

  /* Neutrals */
  --white: #FFFFFF;
  --gray-50: #F8F9FB;
  --gray-100: #F1F3F6;
  --gray-200: #E2E5EB;
  --gray-300: #CDD1D9;
  --gray-400: #9BA3B0;
  --gray-500: #6B7280;
  --gray-600: #4B5563;
  --text-muted: #6B7280;
  --border-color: rgba(32, 41, 58, 0.08);
  --border-color-strong: rgba(32, 41, 58, 0.12);

  /* Module Accents */
  --sponsor: #1F6FEB;
  --deal: #C43A3A;
  --eso: #2A9D8F;

  /* Tenant Preview Accents */
  --cardinal: #C43A3A;
  --acg: #0B1F3A;
  --harbor: #2E6F8E;

  /* Active module (set via JS) */
  --module-accent: var(--indigo);

  /* Type Scale (clamp for fluid sizing) */
  /* Phase 2: Display bumped ~12% for more editorial presence */
  --text-display: clamp(3rem, 5.5vw + 1rem, 4.75rem);
  --text-h1: clamp(2rem, 3.5vw + 0.5rem, 3rem);
  --text-h2: clamp(1.625rem, 2.5vw + 0.5rem, 2.25rem);
  --text-h3: clamp(1.125rem, 1.5vw + 0.25rem, 1.375rem);
  --text-body: 1rem;
  --text-small: 0.875rem;
  --text-xs: 0.8125rem;

  /* Spacing (8px grid) */
  --space-1: 0.5rem;
  --space-2: 1rem;
  --space-3: 1.5rem;
  --space-4: 2rem;
  --space-5: 2.5rem;
  --space-6: 3rem;
  --space-8: 4rem;
  --space-10: 5rem;
  --space-12: 6rem;
  --space-16: 8rem;
  --space-20: 10rem;
  --space-24: 12rem;

  /* Radii */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-card: 16px;
  --radius-pill: 999px;

  /* Phase 2 Elevation: Layered shadow model
     Three tiers — resting, lifted, prominent.
     Softer, wider, never harsh. */
  --shadow-sm: 0 1px 2px rgba(32, 41, 58, 0.04), 0 1px 3px rgba(32, 41, 58, 0.02);
  --shadow-md: 0 2px 8px rgba(32, 41, 58, 0.05), 0 1px 3px rgba(32, 41, 58, 0.03);
  --shadow-lg: 0 4px 20px rgba(32, 41, 58, 0.07), 0 2px 6px rgba(32, 41, 58, 0.02);
  --shadow-card-hover: 0 6px 24px rgba(32, 41, 58, 0.08), 0 2px 6px rgba(32, 41, 58, 0.03);

  /* Phase 2 Elevation: Standardized motion system
     Engineered curves, no bounce, consistent feel. */
  --motion-fast: 150ms;
  --motion-medium: 320ms;
  --motion-slow: 500ms;
  --motion-reveal: 700ms;
  --motion-ease: cubic-bezier(0.16, 1, 0.3, 1);
  --motion-ease-out: cubic-bezier(0.0, 0.0, 0.2, 1);

  /* Legacy aliases (keep for backward compat in this file) */
  --ease: var(--motion-ease);
  --ease-out: var(--motion-ease-out);
  --duration-fast: var(--motion-fast);
  --duration-normal: var(--motion-medium);
  --duration-slow: var(--motion-slow);
  --duration-reveal: var(--motion-reveal);

  /* Layout */
  --container-max: 1200px;
  --container-narrow: 800px;
  --container-wide: 1320px;
  --nav-height: 72px;
}


/* --- Reset & Base --------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
  scroll-padding-top: var(--nav-height);
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  font-size: var(--text-body);
  line-height: 1.6;
  color: var(--ink);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

ul, ol {
  list-style: none;
}


/* --- Typography ----------------------------------------------- */
h1, h2, h3, h4, h5, h6 {
  line-height: 1.15;
  letter-spacing: -0.02em;
  font-weight: 600;
  color: var(--ink);
}

.text-display {
  font-size: var(--text-display);
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 1.05;
}

h1, .text-h1 { font-size: var(--text-h1); }
h2, .text-h2 { font-size: var(--text-h2); }
h3, .text-h3 { font-size: var(--text-h3); font-weight: 500; }

p {
  color: var(--gray-600);
  max-width: 65ch;
}

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

.text-small {
  font-size: var(--text-small);
}

.text-center {
  text-align: center;
}


/* --- Layout --------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.container--narrow {
  max-width: var(--container-narrow);
}

/* Phase 2: Wider container for select sections */
.container--wide {
  max-width: var(--container-wide);
}

section {
  padding-block: var(--space-12);
}

/* Phase 2: Larger section padding for rhythm variation */
.section--spacious {
  padding-block: var(--space-16);
}

.section-header {
  text-align: center;
  margin-bottom: var(--space-8);
}

.section-header p {
  margin-inline: auto;
  margin-top: var(--space-2);
}

.section-label {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--indigo);
  margin-bottom: var(--space-2);
}


/* --- Buttons -------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.75rem 1.75rem;
  font-size: var(--text-small);
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: all var(--motion-medium) var(--motion-ease);
  white-space: nowrap;
  position: relative;
  outline: none;
}

.btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.btn--primary {
  background: var(--indigo);
  color: var(--white);
  box-shadow: 0 1px 3px rgba(78, 71, 221, 0.25);
}

.btn--primary:hover {
  background: var(--indigo-hover);
  box-shadow: 0 4px 12px rgba(78, 71, 221, 0.3);
  transform: translateY(-1px);
}

.btn--secondary {
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--gray-200);
}

.btn--secondary:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
  transform: translateY(-1px);
}

.btn--ghost {
  color: var(--indigo);
  padding: 0.5rem 0;
}

.btn--ghost:hover {
  opacity: 0.8;
}

.btn-group {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  flex-wrap: wrap;
}


/* --- Cards ---------------------------------------------------- */
/* Phase 2: Precision surfaces — softer resting state, controlled lift */
.card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  transition: transform var(--motion-medium) var(--motion-ease),
              box-shadow var(--motion-medium) var(--motion-ease),
              border-color var(--motion-medium) var(--motion-ease);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--indigo-light);
  border-radius: var(--radius-md);
  color: var(--indigo);
  margin-bottom: var(--space-3);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__title {
  font-size: var(--text-h3);
  margin-bottom: var(--space-1);
}

.card__text {
  font-size: var(--text-small);
  color: var(--gray-500);
  line-height: 1.65;
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: 0.375em;
  margin-top: var(--space-3);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--indigo);
  transition: gap var(--motion-medium) var(--motion-ease);
}

.card__link:hover {
  gap: 0.625em;
}

.card__link svg {
  width: 16px;
  height: 16px;
}


/* --- Navigation ----------------------------------------------- */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-height);
  display: flex;
  align-items: center;
  transition: background var(--motion-medium) var(--motion-ease),
              border-color var(--motion-medium) var(--motion-ease),
              box-shadow var(--motion-medium) var(--motion-ease);
  border-bottom: 1px solid transparent;
}

/* Phase 2: Enhanced backdrop material — more glass, more depth */
.nav.is-scrolled {
  background: rgba(255, 255, 255, 0.82);
  -webkit-backdrop-filter: blur(20px) saturate(180%);
  backdrop-filter: blur(20px) saturate(180%);
  border-bottom-color: var(--border-color);
  box-shadow: 0 1px 12px rgba(32, 41, 58, 0.04);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.nav__brand {
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--ink);
  flex-shrink: 0;
}

.nav__brand span {
  color: var(--indigo);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.nav__link {
  font-size: var(--text-small);
  font-weight: 450;
  color: var(--gray-600);
  transition: color var(--motion-fast) ease;
  white-space: nowrap;
}

.nav__link:hover {
  color: var(--ink);
}

.nav__link:focus-visible {
  outline: 2px solid var(--indigo);
  outline-offset: 4px;
  border-radius: 2px;
}

.nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  flex-shrink: 0;
}

.nav__hamburger {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  color: var(--ink);
  transition: background var(--motion-fast) ease;
}

.nav__hamburger:hover {
  background: var(--gray-100);
}

.nav__hamburger:focus-visible {
  box-shadow: 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.nav__hamburger svg {
  width: 24px;
  height: 24px;
}

.nav__hamburger .icon-close {
  display: none;
}

.nav__hamburger[aria-expanded="true"] .icon-menu {
  display: none;
}

.nav__hamburger[aria-expanded="true"] .icon-close {
  display: block;
}

/* Mobile nav panel */
.nav__mobile {
  display: none;
  position: fixed;
  top: var(--nav-height);
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--border-color);
  box-shadow: var(--shadow-lg);
  padding: var(--space-3);
  z-index: 99;
  flex-direction: column;
  gap: var(--space-1);
  opacity: 0;
  transform: translateY(-8px);
  transition: opacity var(--motion-medium) var(--motion-ease),
              transform var(--motion-medium) var(--motion-ease);
}

.nav__mobile.is-open {
  display: flex;
  opacity: 1;
  transform: translateY(0);
}

.nav__mobile .nav__link {
  display: block;
  padding: var(--space-1) var(--space-2);
  border-radius: var(--radius-sm);
  font-size: var(--text-body);
}

.nav__mobile .nav__link:hover {
  background: var(--gray-50);
}

.nav__mobile .btn-group {
  padding-top: var(--space-2);
  border-top: 1px solid var(--border-color);
  margin-top: var(--space-1);
}


/* --- Hero ----------------------------------------------------- */
/* Phase 2: Deeper atmosphere, more vertical breathing room, vignette,
   headline glow layer, immersive but restrained. */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: calc(var(--nav-height) + var(--space-16));
  padding-bottom: var(--space-16);
  overflow: hidden;
  /* Phase 2: Bottom vignette — dissolves into next section */
  box-shadow: inset 0 -120px 100px -60px var(--white);
}

/* Phase 2: Deeper gradient atmosphere with multiple layers */
.hero::before {
  content: '';
  position: absolute;
  inset: -10%;
  background:
    radial-gradient(ellipse 90% 55% at 50% 5%, rgba(78, 71, 221, 0.09), transparent 65%),
    radial-gradient(ellipse 55% 45% at 75% 85%, rgba(78, 71, 221, 0.05), transparent 55%),
    radial-gradient(ellipse 45% 35% at 20% 75%, rgba(78, 71, 221, 0.04), transparent 50%),
    radial-gradient(ellipse 30% 25% at 50% 45%, rgba(78, 71, 221, 0.03), transparent 40%);
  animation: hero-drift 30s ease-in-out infinite alternate;
  pointer-events: none;
}

/* Cartography grid — tighter lines, more refined opacity */
.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(78, 71, 221, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(78, 71, 221, 0.03) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 75% 60% at 50% 40%, black 5%, transparent 65%);
  mask-image: radial-gradient(ellipse 75% 60% at 50% 40%, black 5%, transparent 65%);
  pointer-events: none;
}

/* Phase 2: Slower, subtler drift */
@keyframes hero-drift {
  0%   { transform: translate(0, 0) scale(1); }
  100% { transform: translate(-15px, 10px) scale(1.02); }
}

/* Phase 2: Headline ambient glow — diffuse backlight behind text */
.hero__glow {
  position: absolute;
  width: 70%;
  max-width: 600px;
  aspect-ratio: 3 / 1;
  background: radial-gradient(ellipse, rgba(78, 71, 221, 0.07), transparent 70%);
  top: 38%;
  left: 50%;
  transform: translate(-50%, -50%);
  pointer-events: none;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 820px;
  margin-inline: auto;
  padding-inline: var(--space-3);
}

.hero__headline {
  font-size: var(--text-display);
  color: var(--ink);
  margin-bottom: var(--space-3);
}

.hero__subhead {
  font-size: clamp(1.0625rem, 1.5vw, 1.1875rem);
  color: var(--gray-500);
  max-width: 560px;
  margin-inline: auto;
  line-height: 1.65;
  margin-bottom: var(--space-5);
}

.hero .btn-group {
  justify-content: center;
  margin-bottom: var(--space-8);
}

/* Module chip indicator */
.hero__accent-bar {
  width: 48px;
  height: 3px;
  border-radius: 2px;
  background: var(--module-accent);
  margin: 0 auto var(--space-5);
  transition: background var(--motion-medium) var(--motion-ease);
}

/* Module Chips */
.hero__chips {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  flex-wrap: wrap;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.5rem 1.25rem;
  font-size: var(--text-small);
  font-weight: 500;
  border-radius: var(--radius-pill);
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  transition: all var(--motion-medium) var(--motion-ease);
  cursor: pointer;
}

.chip:hover {
  border-color: var(--gray-300);
  background: var(--gray-50);
}

.chip:focus-visible {
  box-shadow: 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.chip.is-active {
  border-color: var(--module-accent);
  color: var(--module-accent);
  background: var(--white);
  box-shadow: 0 0 0 1px var(--module-accent);
}

.chip__dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: currentColor;
  opacity: 0.6;
}


/* ============================================================
   Phase 2 Elevation: Atlas Visual Motif System
   Recurring orbital arcs + contour dividers.
   Always < 6% opacity. Subconscious, never decorative clutter.
   ============================================================ */
.atlas-divider {
  display: block;
  width: 100%;
  height: 80px;
  position: relative;
  overflow: hidden;
  pointer-events: none;
  flex-shrink: 0;
}

.atlas-divider svg {
  position: absolute;
  width: 100%;
  height: 100%;
}

/* Tinted divider sits on gray background */
.atlas-divider--tinted {
  background: var(--gray-50);
}

/* Orbital arc as section background decoration */
.atlas-arc {
  position: absolute;
  border: 1px solid rgba(78, 71, 221, 0.04);
  border-radius: 50%;
  pointer-events: none;
}

/* Contour background pattern — subtle, fading at edges */
.atlas-contour-bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  overflow: hidden;
}

.atlas-contour-bg::before,
.atlas-contour-bg::after {
  content: '';
  position: absolute;
  border: 1px solid rgba(78, 71, 221, 0.035);
  border-radius: 50%;
}

.atlas-contour-bg::before {
  width: 800px;
  height: 800px;
  top: -400px;
  right: -250px;
}

.atlas-contour-bg::after {
  width: 600px;
  height: 600px;
  bottom: -300px;
  left: -200px;
}


/* --- Platform Overview ---------------------------------------- */
/* Phase 2: Second contour arc, spacious padding */
.platform {
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
  padding-block: var(--space-16);
}

/* Contour arc decoration — dual arcs for depth */
.platform::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -300px;
  width: 700px;
  height: 700px;
  border: 1px solid rgba(78, 71, 221, 0.04);
  border-radius: 50%;
  pointer-events: none;
}

.platform::after {
  content: '';
  position: absolute;
  bottom: -350px;
  left: -250px;
  width: 600px;
  height: 600px;
  border: 1px solid rgba(78, 71, 221, 0.03);
  border-radius: 50%;
  pointer-events: none;
}

.platform__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
}


/* --- Modules Section ------------------------------------------ */
/* Phase 2: Spacious, with atlas contour background */
.modules {
  position: relative;
  overflow: hidden;
  padding-block: var(--space-16);
}

/* Segmented control / tabs */
.module-tabs {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 2px;
  background: var(--gray-100);
  border-radius: var(--radius-pill);
  padding: 4px;
  margin-bottom: var(--space-8);
  max-width: 520px;
  margin-inline: auto;
}

.module-tab {
  flex: 1;
  padding: 0.625rem 1.25rem;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--gray-500);
  border-radius: var(--radius-pill);
  transition: all var(--motion-medium) var(--motion-ease);
  text-align: center;
  white-space: nowrap;
}

.module-tab:hover {
  color: var(--ink);
}

.module-tab:focus-visible {
  box-shadow: 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.module-tab.is-active {
  background: var(--white);
  color: var(--ink);
  box-shadow: var(--shadow-sm);
}

/* ============================================================
   Phase 2 Elevation: SIGNATURE INTERACTION
   Module panel crossfade with staggered content reveal.
   All panels grid-stacked; CSS visibility + opacity handles show/hide.
   Feature cards stagger in. Info column slides from left.
   ============================================================ */
.module-panels {
  display: grid;
  position: relative;
}

.module-panel {
  grid-row: 1;
  grid-column: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  align-items: start;
  opacity: 0;
  pointer-events: none;
  visibility: hidden;
  transition: opacity var(--motion-medium) var(--motion-ease),
              visibility 0s var(--motion-medium);
}

.module-panel.is-active {
  opacity: 1;
  pointer-events: auto;
  visibility: visible;
  transition: opacity var(--motion-medium) var(--motion-ease),
              visibility 0s 0s;
}

/* Staggered info column entrance */
.module-panel .module-panel__info {
  opacity: 0;
  transform: translateX(-8px);
  transition: opacity var(--motion-medium) var(--motion-ease),
              transform var(--motion-medium) var(--motion-ease);
}

.module-panel.is-active .module-panel__info {
  opacity: 1;
  transform: translateX(0);
  transition-delay: 60ms;
}

/* Staggered feature card entrance */
.module-panel .feature-stack .feature-card {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity var(--motion-medium) var(--motion-ease),
              transform var(--motion-medium) var(--motion-ease);
}

.module-panel.is-active .feature-stack .feature-card {
  opacity: 1;
  transform: translateY(0);
}

.module-panel.is-active .feature-stack .feature-card:nth-child(1) { transition-delay: 80ms; }
.module-panel.is-active .feature-stack .feature-card:nth-child(2) { transition-delay: 160ms; }
.module-panel.is-active .feature-stack .feature-card:nth-child(3) { transition-delay: 240ms; }

/* Reset delays on exit so fade-out is instant */
.module-panel:not(.is-active) .module-panel__info,
.module-panel:not(.is-active) .feature-stack .feature-card {
  transition-delay: 0ms;
}

.module-panel__info h3 {
  font-size: var(--text-h2);
  margin-bottom: var(--space-3);
}

.module-panel__info p {
  margin-bottom: var(--space-4);
}

.module-panel__list {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.module-panel__list li {
  display: flex;
  align-items: flex-start;
  gap: var(--space-1);
  font-size: var(--text-small);
  color: var(--gray-600);
}

.module-panel__list li svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--indigo);
  margin-top: 1px;
}

/* Feature card stack (abstract UI mockup) */
.feature-stack {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.feature-card {
  background: var(--gray-50);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: var(--space-3);
}

/* Stat card style */
.feature-card--stat {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.feature-card__label {
  font-size: var(--text-xs);
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  font-weight: 500;
}

.feature-card__value {
  font-size: var(--text-h2);
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
}

.feature-card__bar {
  height: 6px;
  background: var(--gray-200);
  border-radius: 3px;
  margin-top: var(--space-1);
  overflow: hidden;
}

.feature-card__bar-fill {
  height: 100%;
  border-radius: 3px;
  background: var(--indigo);
  transition: width var(--motion-slow) var(--motion-ease);
}

/* List card style */
.feature-card--list ul {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.feature-card--list li {
  display: flex;
  align-items: center;
  gap: var(--space-1);
  padding: 0.5rem 0.75rem;
  border-radius: var(--radius-sm);
  font-size: var(--text-small);
  color: var(--gray-600);
  background: var(--white);
  border: 1px solid var(--border-color);
}

.feature-card--list .list-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}

/* Tags card style */
.feature-card--tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.feature-tag {
  padding: 0.375rem 0.875rem;
  font-size: var(--text-xs);
  font-weight: 500;
  border-radius: var(--radius-pill);
  background: var(--indigo-light);
  color: var(--indigo);
}

.feature-tag--muted {
  background: var(--gray-100);
  color: var(--gray-500);
}


/* --- How It Works --------------------------------------------- */
/* Phase 2: More spacious, refined connector */
.how-it-works {
  background: var(--gray-50);
  position: relative;
  overflow: hidden;
  padding-block: var(--space-16);
}

.how-it-works::after {
  content: '';
  position: absolute;
  bottom: -250px;
  left: -200px;
  width: 500px;
  height: 500px;
  border: 1px solid rgba(78, 71, 221, 0.035);
  border-radius: 50%;
  pointer-events: none;
}

.steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
}

/* Phase 2: Connecting line with gradient fade at ends */
.steps::before {
  content: '';
  position: absolute;
  top: 56px;
  left: calc(12.5% + 16px);
  right: calc(12.5% + 16px);
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gray-200) 15%, var(--gray-200) 85%, transparent);
  z-index: 0;
}

.step {
  text-align: center;
  position: relative;
  z-index: 1;
}

/* Phase 2: Step numbers with subtle indigo glow ring */
.step__number {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
  border-radius: 50%;
  background: var(--white);
  border: 1px solid var(--gray-200);
  font-size: var(--text-small);
  font-weight: 600;
  color: var(--indigo);
  position: relative;
  box-shadow: 0 0 0 4px rgba(78, 71, 221, 0.04);
}

.step__icon {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-1);
  color: var(--gray-400);
}

.step__icon svg {
  width: 20px;
  height: 20px;
}

.step__title {
  font-size: var(--text-body);
  font-weight: 600;
  margin-bottom: var(--space-1);
}

.step__text {
  font-size: var(--text-small);
  color: var(--gray-500);
  line-height: 1.6;
  max-width: 220px;
  margin-inline: auto;
}


/* --- Theming Demo --------------------------------------------- */
.theming {
  position: relative;
  padding-block: var(--space-16);
}

.theming__layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-8);
  align-items: center;
}

.theming__info h2 {
  margin-bottom: var(--space-3);
}

.theming__info p {
  margin-bottom: var(--space-5);
}

/* Theme picker buttons */
.theme-picker {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.theme-btn {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.75rem 1rem;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  background: var(--white);
  text-align: left;
  transition: all var(--motion-medium) var(--motion-ease);
  width: 100%;
}

.theme-btn:hover {
  background: var(--gray-50);
  border-color: var(--gray-300);
}

.theme-btn:focus-visible {
  box-shadow: 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.theme-btn.is-active {
  border-color: var(--indigo);
  box-shadow: 0 0 0 1px var(--indigo);
}

.theme-btn__swatch {
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  flex-shrink: 0;
}

.theme-btn__name {
  font-size: var(--text-small);
  font-weight: 500;
}

.theme-btn__org {
  font-size: var(--text-xs);
  color: var(--gray-400);
}

/* Phase 2: Preview panel — enhanced material quality + breathe transition */
.theme-preview {
  background: var(--gray-50);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  overflow: hidden;
  transition: transform var(--motion-medium) var(--motion-ease);
}

.theme-preview__inner {
  display: grid;
  grid-template-columns: 56px 1fr;
  gap: var(--space-3);
  min-height: 280px;
}

/* Mini sidebar mockup */
.preview-sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
  padding-top: var(--space-1);
}

.preview-sidebar__item {
  width: 100%;
  height: 8px;
  border-radius: 4px;
  background: var(--gray-200);
  transition: background var(--motion-medium) var(--motion-ease);
}

.preview-sidebar__item.is-active {
  background: var(--tenant-accent, var(--indigo));
}

/* Mini content mockup */
.preview-content {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.preview-header {
  height: 12px;
  width: 60%;
  background: var(--gray-300);
  border-radius: 6px;
}

.preview-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-1);
}

.preview-card-mock {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: var(--space-2);
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
}

.preview-card-mock__line {
  height: 6px;
  border-radius: 3px;
  background: var(--gray-200);
}

.preview-card-mock__line--short {
  width: 60%;
}

.preview-card-mock__line--accent {
  background: var(--tenant-accent, var(--indigo));
  width: 40%;
  transition: background var(--motion-medium) var(--motion-ease);
}

.preview-btn-mock {
  display: inline-block;
  width: fit-content;
  padding: 0.375rem 1rem;
  border-radius: var(--radius-pill);
  background: var(--tenant-accent, var(--indigo));
  transition: background var(--motion-medium) var(--motion-ease);
}

.preview-btn-mock__text {
  display: block;
  height: 6px;
  width: 48px;
  background: rgba(255, 255, 255, 0.6);
  border-radius: 3px;
}

.preview-badge-mock {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.25rem 0.625rem;
  border-radius: var(--radius-pill);
  font-size: var(--text-xs);
  transition: all var(--motion-medium) var(--motion-ease);
}

.preview-badge-mock__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tenant-accent, var(--indigo));
  transition: background var(--motion-medium) var(--motion-ease);
}

.preview-badge-mock__line {
  height: 6px;
  width: 32px;
  border-radius: 3px;
  background: var(--gray-200);
}

.preview-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.preview-list__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.5rem;
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: 6px;
}

.preview-list__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--tenant-accent, var(--indigo));
  flex-shrink: 0;
  transition: background var(--motion-medium) var(--motion-ease);
}

.preview-list__line {
  height: 6px;
  border-radius: 3px;
  background: var(--gray-200);
  flex: 1;
}


/* --- Security ------------------------------------------------- */
/* Phase 2 Elevation: Institutional gravity
   Deeper atmosphere, tighter grid, stronger typography,
   reduced hover animation, durable feel. */
.security {
  background: var(--ink);
  color: var(--white);
  position: relative;
  overflow: hidden;
  padding-block: var(--space-16);
}

/* Phase 2: Deeper, more controlled gradient */
.security::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 50% 40% at 20% 50%, rgba(78, 71, 221, 0.1), transparent),
    radial-gradient(ellipse 35% 50% at 80% 30%, rgba(78, 71, 221, 0.06), transparent),
    radial-gradient(ellipse 60% 30% at 50% 100%, rgba(32, 41, 58, 0.3), transparent);
  pointer-events: none;
}

/* Grid pattern — tighter, quieter */
.security::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 80%);
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, black 20%, transparent 80%);
  pointer-events: none;
}

.security .section-header {
  position: relative;
  z-index: 1;
}

.security .section-label {
  color: rgba(255, 255, 255, 0.45);
}

.security .section-header h2 {
  color: var(--white);
  font-weight: 700;
}

.security .section-header p {
  color: rgba(255, 255, 255, 0.5);
}

/* Phase 2: Tighter grid, institutional density */
.trust-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-2);
  position: relative;
  z-index: 1;
}

/* Phase 2: Stronger tiles — more defined borders, less hover motion */
.trust-tile {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(255, 255, 255, 0.07);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  text-align: center;
  transition: background var(--motion-medium) var(--motion-ease);
}

.trust-tile:hover {
  background: rgba(255, 255, 255, 0.05);
}

.trust-tile__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-3);
  border-radius: var(--radius-md);
  background: rgba(78, 71, 221, 0.12);
  color: rgba(255, 255, 255, 0.75);
}

.trust-tile__icon svg {
  width: 24px;
  height: 24px;
}

/* Phase 2: Stronger title weight */
.trust-tile__title {
  font-size: var(--text-body);
  font-weight: 700;
  color: var(--white);
  margin-bottom: var(--space-1);
}

.trust-tile__text {
  font-size: var(--text-small);
  color: rgba(255, 255, 255, 0.4);
  line-height: 1.6;
}


/* --- Pricing -------------------------------------------------- */
/* Phase 2: Subtle tinted background for rhythm */
.pricing {
  position: relative;
  background: var(--gray-50);
  padding-block: var(--space-16);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--space-4);
  align-items: start;
}

.pricing-card {
  background: var(--white);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  padding: var(--space-5);
  transition: transform var(--motion-medium) var(--motion-ease),
              box-shadow var(--motion-medium) var(--motion-ease),
              border-color var(--motion-medium) var(--motion-ease);
}

.pricing-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-card-hover);
  border-color: var(--border-color-strong);
}

.pricing-card--featured {
  border-color: var(--indigo);
  box-shadow: 0 0 0 1px var(--indigo), var(--shadow-md);
  position: relative;
}

.pricing-card__badge {
  position: absolute;
  top: -12px;
  left: 50%;
  transform: translateX(-50%);
  padding: 0.25rem 1rem;
  font-size: var(--text-xs);
  font-weight: 600;
  background: var(--indigo);
  color: var(--white);
  border-radius: var(--radius-pill);
  white-space: nowrap;
}

.pricing-card__tier {
  font-size: var(--text-small);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-400);
  margin-bottom: var(--space-1);
}

.pricing-card__price {
  font-size: var(--text-h1);
  font-weight: 700;
  color: var(--ink);
  margin-bottom: var(--space-1);
}

.pricing-card__price span {
  font-size: var(--text-small);
  font-weight: 400;
  color: var(--gray-400);
}

.pricing-card__desc {
  font-size: var(--text-small);
  color: var(--gray-500);
  margin-bottom: var(--space-4);
  line-height: 1.6;
}

.pricing-card__features {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-bottom: var(--space-4);
}

.pricing-card__features li {
  display: flex;
  align-items: center;
  gap: 0.625rem;
  font-size: var(--text-small);
  color: var(--gray-600);
}

.pricing-card__features svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  color: var(--indigo);
}

.pricing-card .btn {
  width: 100%;
}


/* --- FAQ ------------------------------------------------------ */
.faq {
  background: var(--white);
  padding-block: var(--space-16);
}

.faq__list {
  max-width: var(--container-narrow);
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--border-color);
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-color);
}

.faq-item {
  background: var(--white);
}

.faq-item__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-body);
  font-weight: 500;
  text-align: left;
  color: var(--ink);
  transition: background var(--motion-fast) ease;
}

.faq-item__trigger:hover {
  background: var(--gray-50);
}

.faq-item__trigger:focus-visible {
  box-shadow: inset 0 0 0 3px rgba(78, 71, 221, 0.35);
}

.faq-item__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--gray-400);
  transition: transform var(--motion-medium) var(--motion-ease);
}

.faq-item[open] .faq-item__icon {
  transform: rotate(45deg);
}

.faq-item__content {
  padding: 0 var(--space-4) var(--space-3);
}

.faq-item__content p {
  font-size: var(--text-small);
  color: var(--gray-500);
  line-height: 1.7;
  max-width: 60ch;
}


/* --- Final CTA ------------------------------------------------ */
/* Phase 2: Deeper atmosphere, grid overlay */
.final-cta {
  background: var(--ink);
  position: relative;
  overflow: hidden;
  text-align: center;
  padding-block: var(--space-16);
}

.final-cta::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(78, 71, 221, 0.14), transparent 70%);
  pointer-events: none;
}

/* Phase 2: Grid texture on CTA for continuity */
.final-cta::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 10%, transparent 70%);
  mask-image: radial-gradient(ellipse 60% 60% at 50% 50%, black 10%, transparent 70%);
  pointer-events: none;
}

.final-cta__content {
  position: relative;
  z-index: 1;
}

.final-cta h2 {
  color: var(--white);
  margin-bottom: var(--space-3);
}

.final-cta p {
  color: rgba(255, 255, 255, 0.55);
  margin-inline: auto;
  margin-bottom: var(--space-5);
}

.final-cta .btn-group {
  justify-content: center;
}

.final-cta .btn--secondary {
  background: transparent;
  color: rgba(255, 255, 255, 0.8);
  border-color: rgba(255, 255, 255, 0.15);
}

.final-cta .btn--secondary:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.25);
  color: var(--white);
}


/* --- Footer --------------------------------------------------- */
.footer {
  background: var(--ink);
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-block: var(--space-6);
}

.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.footer__brand {
  font-size: var(--text-body);
  font-weight: 600;
  color: var(--white);
}

.footer__brand span {
  color: var(--indigo);
  opacity: 0.7;
}

.footer__links {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

.footer__link {
  font-size: var(--text-small);
  color: rgba(255, 255, 255, 0.4);
  transition: color var(--motion-fast) ease;
}

.footer__link:hover {
  color: rgba(255, 255, 255, 0.7);
}

.footer__copy {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.25);
}


/* --- Scroll Reveal -------------------------------------------- */
/* Phase 2: Uses motion tokens for consistent timing */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity var(--motion-reveal) var(--motion-ease),
              transform var(--motion-reveal) var(--motion-ease);
}

.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.reveal-delay-1 { transition-delay: 100ms; }
.reveal-delay-2 { transition-delay: 200ms; }
.reveal-delay-3 { transition-delay: 300ms; }
.reveal-delay-4 { transition-delay: 400ms; }


/* --- Responsive ----------------------------------------------- */

/* Tablet */
@media (max-width: 1024px) {
  .platform__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .platform__grid .card:last-child {
    grid-column: 1 / -1;
    max-width: 400px;
    justify-self: center;
  }

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

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

  .pricing-grid .pricing-card:last-child {
    grid-column: 1 / -1;
    max-width: 440px;
    justify-self: center;
  }

  .steps::before {
    display: none;
  }

  .steps {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
  }

  .theming__layout {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  /* Phase 2: Crossfade panels responsive */
  .module-panel,
  .module-panel.is-active {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --nav-height: 64px;
  }

  section {
    padding-block: var(--space-8);
  }

  /* Phase 2: Override spacious sections on mobile */
  .section--spacious,
  .platform,
  .modules,
  .how-it-works,
  .theming,
  .security,
  .pricing,
  .faq,
  .final-cta {
    padding-block: var(--space-8);
  }

  .section-header {
    margin-bottom: var(--space-6);
  }

  /* Nav */
  .nav__links,
  .nav__actions .btn {
    display: none;
  }

  .nav__hamburger {
    display: flex;
  }

  .nav__mobile .btn {
    display: inline-flex;
  }

  /* Hero */
  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-height) + var(--space-8));
    padding-bottom: var(--space-10);
  }

  .hero .btn-group {
    flex-direction: column;
    align-items: stretch;
    margin-bottom: var(--space-6);
  }

  /* Atlas dividers hide on mobile */
  .atlas-divider {
    height: 40px;
  }

  /* Cards */
  .platform__grid {
    grid-template-columns: 1fr;
  }

  .platform__grid .card:last-child {
    max-width: none;
  }

  /* Modules */
  .module-tabs {
    flex-direction: column;
    border-radius: var(--radius-card);
    max-width: none;
  }

  .module-tab {
    width: 100%;
    text-align: center;
  }

  /* Steps */
  .steps {
    grid-template-columns: 1fr;
    gap: var(--space-4);
    max-width: 360px;
    margin-inline: auto;
  }

  /* Security */
  .trust-grid {
    grid-template-columns: 1fr;
  }

  /* Pricing */
  .pricing-grid {
    grid-template-columns: 1fr;
    max-width: 440px;
    margin-inline: auto;
  }

  .pricing-grid .pricing-card:last-child {
    max-width: none;
  }

  /* Footer */
  .footer__inner {
    flex-direction: column;
    text-align: center;
  }

  .footer__links {
    flex-wrap: wrap;
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero__chips {
    flex-direction: column;
    align-items: stretch;
  }

  .chip {
    justify-content: center;
  }

  .preview-cards {
    grid-template-columns: 1fr;
  }

  .theme-preview__inner {
    grid-template-columns: 40px 1fr;
  }
}


/* --- Reduced Motion ------------------------------------------- */
/* Phase 2: Comprehensive reduced-motion coverage */
@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;
  }

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

  .card:hover,
  .pricing-card:hover,
  .btn--primary:hover,
  .btn--secondary:hover {
    transform: none;
  }

  /* Phase 2: Disable crossfade + stagger for module panels */
  .module-panel,
  .module-panel .module-panel__info,
  .module-panel .feature-stack .feature-card {
    transition: none !important;
    opacity: 1;
    transform: none;
    visibility: visible;
  }

  .module-panel:not(.is-active) {
    opacity: 0;
    visibility: hidden;
  }

  /* Phase 2: Disable theme preview breathe */
  .theme-preview {
    transition: none !important;
  }
}