/* ==========================================================================
   LEAPS - Lean Engineering and Performance Structures
   Static Stylesheet
   Palette derived from official identity:
   - Primary Cobalt/Indigo: #6257FF
   - Dark Cobalt/Brand: #483EDB / #372EBD
   - Structural Amber/Gold: #D1A31C / #E5B220
   - Slate Ink / Brand Dark: #131231 / #0F172A
   - Surfaces & Borders: #F8FAFC, #FFFFFF, #E2E8F0
   ========================================================================== */

:root {
  --color-primary: #6257FF;
  --color-primary-hover: #4E43E0;
  --color-primary-dark: #352BAE;
  --color-primary-tint: #EEEDFD;
  --color-primary-subtle: rgba(98, 87, 255, 0.08);

  --color-accent: #D1A31C;
  --color-accent-hover: #B88E14;
  --color-accent-light: #FDF6E2;
  --color-accent-border: #E8C86A;

  --color-dark: #131231;
  --color-dark-surface: #1B1842;
  --color-dark-border: #2D2960;

  --color-text-main: #0F172A;
  --color-text-muted: #475569;
  --color-text-light: #64748B;
  --color-text-inverse: #FFFFFF;

  --color-bg-base: #FFFFFF;
  --color-bg-surface: #F8FAFC;
  --color-bg-surface-alt: #F1F5F9;

  --color-border: #E2E8F0;
  --color-border-subtle: #F1F5F9;
  --color-border-card: #E5E9F0;

  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.04);
  --shadow-card: 0 2px 8px rgba(19, 18, 49, 0.04), 0 1px 2px rgba(19, 18, 49, 0.02);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-full: 9999px;

  --container-max: 1160px;
  --section-spacing: 96px;
}

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

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text-main);
  background-color: var(--color-bg-base);
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  width: 100%;
}

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

a {
  color: var(--color-primary);
  text-decoration: none;
  transition: color 0.15s ease;
}

a:hover {
  color: var(--color-primary-hover);
}

/* Layout Utilities */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: 24px;
  padding-right: 24px;
}

.section {
  padding-top: var(--section-spacing);
  padding-bottom: var(--section-spacing);
}

.section--alt {
  background-color: var(--color-bg-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.section--dark {
  background-color: var(--color-dark);
  color: var(--color-text-inverse);
}

/* Typography */
h1, h2, h3, h4 {
  color: var(--color-text-main);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
}

.section--dark h1,
.section--dark h2,
.section--dark h3,
.section--dark h4 {
  color: var(--color-text-inverse);
}

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px auto;
}

.section-header--left {
  text-align: left;
  margin-left: 0;
}

.section-tag {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  background: var(--color-primary-tint);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  margin-bottom: 14px;
}

.section-tag--accent {
  color: #8C6809;
  background: var(--color-accent-light);
  border: 1px solid var(--color-accent-border);
}

.section-title {
  font-size: 2.125rem;
  margin-bottom: 16px;
  color: var(--color-text-main);
}

.section-lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.section--dark .section-lead {
  color: #CBD5E1;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 12px 24px;
  border-radius: var(--radius-sm);
  transition: all 0.18s ease;
  cursor: pointer;
  border: 1px solid transparent;
  line-height: 1.2;
  text-decoration: none;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #FFFFFF;
}

.btn--primary:hover {
  background-color: var(--color-primary-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 12px rgba(98, 87, 255, 0.28);
}

.btn--secondary {
  background-color: #FFFFFF;
  color: var(--color-text-main);
  border-color: var(--color-border);
}

.btn--secondary:hover {
  background-color: var(--color-bg-surface-alt);
  border-color: #CBD5E1;
  color: var(--color-text-main);
}

.btn--white {
  background-color: #FFFFFF;
  color: var(--color-dark);
}

.btn--white:hover {
  background-color: #F8FAFC;
  color: var(--color-primary-dark);
}

/* Header & Nav */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.nav-wrapper {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--color-dark);
}

.brand__logo-img {
  height: 40px;
  width: auto;
  object-fit: contain;
}

.brand__text {
  display: flex;
  flex-direction: column;
}

.brand__title {
  font-weight: 800;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
  color: var(--color-dark);
  line-height: 1.1;
}

.brand__subtitle {
  font-size: 0.6875rem;
  font-weight: 500;
  letter-spacing: 0.04em;
  color: var(--color-text-light);
  text-transform: uppercase;
}

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

.nav-link {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.15s ease;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-btn {
  font-size: 0.875rem;
  padding: 8px 18px;
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 8px;
  cursor: pointer;
  color: var(--color-text-main);
}

.nav-toggle svg {
  width: 26px;
  height: 26px;
}

/* Hero Section */
.hero {
  padding-top: 76px;
  padding-bottom: 84px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F8FAFC 100%);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 48px;
  align-items: center;
}

.hero__content {
  max-width: 820px;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-primary);
  background-color: var(--color-primary-tint);
  border: 1px solid rgba(98, 87, 255, 0.2);
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}

.hero__badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent);
}

.hero__title {
  font-size: clamp(1.85rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  color: var(--color-dark);
  margin-bottom: 22px;
  overflow-wrap: break-word;
}

.hero__title-accent {
  color: var(--color-primary);
}

.hero__description {
  font-size: 1.1875rem;
  line-height: 1.65;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 760px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero__meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px 20px;
  font-size: 0.85rem;
  color: var(--color-text-light);
}

.hero__meta-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hero__meta-icon {
  color: var(--color-accent);
}

/* Workflow Flowchart Diagram in Hero */
.workflow-strip {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 24px;
  box-shadow: var(--shadow-sm);
  margin-top: 12px;
}

.workflow-strip__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-light);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.workflow-strip__label-line {
  flex: 1;
  height: 1px;
  background-color: var(--color-border);
}

.workflow-strip__pipeline {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  position: relative;
}

.workflow-node {
  background-color: var(--color-bg-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 14px 12px;
  text-align: center;
  position: relative;
  transition: all 0.2s ease;
  min-width: 0;
}

.workflow-node:hover {
  border-color: var(--color-primary);
  background-color: var(--color-primary-tint);
}

.workflow-node__code {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 4px;
}

.workflow-node__title {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--color-text-main);
  line-height: 1.25;
}

.workflow-node__desc {
  font-size: 0.75rem;
  color: var(--color-text-light);
  margin-top: 4px;
  line-height: 1.35;
}

.workflow-node__arrow {
  position: absolute;
  right: -10px;
  top: 50%;
  transform: translateY(-50%);
  width: 16px;
  height: 16px;
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  color: var(--color-text-light);
  font-size: 10px;
}

.workflow-node:last-child .workflow-node__arrow {
  display: none;
}

.workflow-strip__foundation {
  margin-top: 12px;
  background-color: var(--color-primary-tint);
  border: 1px dashed rgba(98, 87, 255, 0.4);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 6px 12px;
  font-size: 0.8125rem;
}

.workflow-strip__foundation-title {
  font-weight: 700;
  color: var(--color-primary-dark);
}

.workflow-strip__foundation-note {
  font-size: 0.75rem;
  color: var(--color-text-muted);
}

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

.problem-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
}

.problem-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}

.problem-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: #FEF2F2;
  border: 1px solid #FEE2E2;
  color: #DC2626;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.problem-card__number {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-text-light);
  margin-bottom: 8px;
  letter-spacing: 0.05em;
}

.problem-card__title {
  font-size: 1.15rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.problem-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.problem-context {
  margin-top: 36px;
  padding: 18px 24px;
  background-color: var(--color-bg-surface);
  border-left: 3px solid var(--color-accent);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* Approach Section */
.approach-layout {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.approach-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 36px 30px;
  box-shadow: var(--shadow-card);
  position: relative;
  overflow: hidden;
}

.approach-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background-color: var(--color-primary);
}

.approach-card:nth-child(2)::before {
  background-color: var(--color-accent);
}

.approach-card:nth-child(3)::before {
  background-color: var(--color-dark);
}

.approach-card__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background-color: var(--color-primary-tint);
  border: 1px solid rgba(98, 87, 255, 0.2);
  color: var(--color-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}

.approach-card:nth-child(2) .approach-card__icon {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-border);
  color: #8C6809;
}

.approach-card:nth-child(3) .approach-card__icon {
  background-color: #F1F5F9;
  border-color: #CBD5E1;
  color: var(--color-dark);
}

.approach-card__title {
  font-size: 1.25rem;
  margin-bottom: 12px;
  color: var(--color-dark);
}

.approach-card__text {
  font-size: 0.9375rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* Modules Section */
.modules-disclaimer {
  max-width: 820px;
  margin: -24px auto 48px auto;
  padding: 16px 20px;
  background-color: var(--color-accent-light);
  border: 1px solid var(--color-accent-border);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  color: #785805;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

.modules-disclaimer svg {
  flex-shrink: 0;
  margin-top: 2px;
}

.modules-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(min(100%, 280px), 1fr));
  gap: 24px;
}

.module-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px 26px;
  box-shadow: var(--shadow-card);
  display: flex;
  flex-direction: column;
  transition: all 0.18s ease;
}

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

.module-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
  padding-bottom: 14px;
  border-bottom: 1px solid var(--color-border-subtle);
}

.module-badge {
  font-family: var(--font-mono);
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-tint);
  padding: 4px 10px;
  border-radius: var(--radius-sm);
}

.module-status {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  line-height: 1.2;
}

.module-status--production {
  color: #065F46;
  background-color: #ECFDF5;
  border: 1px solid #A7F3D0;
}

.module-status--production::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #059669;
}

.module-status--mvp {
  color: #1E40AF;
  background-color: #EFF6FF;
  border: 1px solid #BFDBFE;
}

.module-status--mvp::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #2563EB;
}

.module-status--planned {
  color: #64748B;
  background-color: #F8FAFC;
  border: 1px solid #E2E8F0;
}

.module-status--planned::before {
  content: "";
  display: inline-block;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background-color: #94A3B8;
}

.module-card__title {
  font-size: 1.25rem;
  color: var(--color-dark);
  margin-bottom: 10px;
}

.module-card__lead {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--color-text-main);
  margin-bottom: 8px;
}

.module-card__desc {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: 18px;
  flex: 1;
}

.module-card__capabilities {
  list-style: none;
  font-size: 0.84rem;
  color: var(--color-text-muted);
  border-top: 1px dashed var(--color-border);
  padding-top: 14px;
}

.module-card__capabilities li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.module-card__capabilities li:last-child {
  margin-bottom: 0;
}

.module-card__capabilities svg {
  color: var(--color-accent);
  flex-shrink: 0;
}

/* Development Status Section */
.status-box {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 44px;
  box-shadow: var(--shadow-sm);
}

.status-box__headline {
  font-size: 1.5rem;
  color: var(--color-dark);
  margin-bottom: 18px;
  line-height: 1.3;
}

.status-box__content {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: 32px;
  max-width: 900px;
}

.status-box__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  border-top: 1px solid var(--color-border);
  padding-top: 32px;
}

.status-item {
  display: flex;
  flex-direction: column;
}

.status-item__label {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-light);
  margin-bottom: 6px;
}

.status-item__value {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 4px;
}

.status-item__desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.45;
}

/* Platform Demo Video Section */
.demo-section {
  background-color: #0F111E;
  color: #FFFFFF;
  position: relative;
  overflow: hidden;
  border-top: 1px solid #1E2235;
  border-bottom: 1px solid #1E2235;
}

.demo-section .section-title {
  color: #FFFFFF;
}

.demo-section .section-lead {
  color: #94A3B8;
}

.video-container {
  max-width: 960px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.45);
  border: 1px solid #2D334D;
  background-color: #000000;
}

.video-player {
  width: 100%;
  height: auto;
  aspect-ratio: 16 / 9;
  display: block;
  background-color: #000000;
  outline: none;
}

.video-meta {
  background-color: #171B2B;
  padding: 20px 24px;
  border-top: 1px solid #2A3047;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.video-meta__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
}

.video-meta__title {
  font-size: 0.95rem;
  font-weight: 700;
  color: #FFFFFF;
}

.video-meta__duration {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #38BDF8;
  background-color: rgba(56, 189, 248, 0.1);
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.video-chapters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.chapter-btn {
  background-color: #20263B;
  border: 1px solid #333C5B;
  border-radius: var(--radius-sm);
  padding: 6px 12px;
  font-size: 0.8rem;
  font-weight: 600;
  color: #E2E8F0;
  cursor: pointer;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.chapter-btn:hover {
  background-color: var(--color-primary);
  border-color: var(--color-primary);
  color: #FFFFFF;
}

.chapter-btn .chapter-time {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: #93C5FD;
}

.chapter-btn:hover .chapter-time {
  color: #FFFFFF;
}

/* Product Evidence & Screenshot Showcase */
.evidence-tabs {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.evidence-tab-btn {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 10px 20px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background-color: #FFFFFF;
  color: var(--color-text-muted);
  cursor: pointer;
  transition: all 0.18s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.evidence-tab-btn:hover {
  color: var(--color-primary);
  border-color: #CBD5E1;
}

.evidence-tab-btn.is-active {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 12px rgba(98, 87, 255, 0.25);
}

.evidence-panel {
  display: none;
}

.evidence-panel.is-active {
  display: block;
}

.evidence-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.evidence-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
  display: flex;
  flex-direction: column;
}

.evidence-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  border-color: #CBD5E1;
}

.evidence-card__preview {
  background-color: #0B0E17;
  padding: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--color-border);
  min-height: 220px;
}

.evidence-card__img {
  width: 100%;
  height: 240px;
  object-fit: cover;
  object-position: top center;
  border-radius: 4px;
}

.evidence-card__body {
  padding: 20px 22px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.evidence-card__tag {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 6px;
}

.evidence-card__title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-dark);
  margin-bottom: 8px;
}

.evidence-card__desc {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* Roadmap Distinction Table */
.roadmap-box {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  margin-top: 40px;
}

.roadmap-header {
  background-color: var(--color-bg-surface);
  padding: 20px 28px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}

.roadmap-header__title {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--color-dark);
}

.roadmap-table-wrapper {
  overflow-x: auto;
}

.roadmap-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
  font-size: 0.9rem;
}

.roadmap-table th {
  background-color: #F8FAFC;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-text-light);
  padding: 14px 24px;
  border-bottom: 1px solid var(--color-border);
}

.roadmap-table td {
  padding: 16px 24px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}

.roadmap-table tr:last-child td {
  border-bottom: none;
}

.roadmap-table tr:hover td {
  background-color: #FBFDFF;
}

.roadmap-module-name {
  font-weight: 700;
  color: var(--color-dark);
}

.roadmap-module-desc {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Contact Section */
.contact-container {
  max-width: 840px;
  margin: 0 auto;
}

.contact-card {
  background-color: #FFFFFF;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 48px;
  box-shadow: var(--shadow-md);
  text-align: center;
}

.contact-card__title {
  font-size: 1.75rem;
  color: var(--color-dark);
  margin-bottom: 12px;
}

.contact-card__desc {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  margin-bottom: 32px;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

.contact-card__action {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.contact-email-link {
  font-family: var(--font-mono);
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-primary);
  background-color: var(--color-primary-tint);
  border: 1px solid rgba(98, 87, 255, 0.25);
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  transition: all 0.18s ease;
}

.contact-email-link:hover {
  background-color: var(--color-primary);
  color: #FFFFFF;
  border-color: var(--color-primary);
  box-shadow: 0 4px 14px rgba(98, 87, 255, 0.25);
}

.contact-note {
  font-size: 0.85rem;
  color: var(--color-text-light);
  line-height: 1.5;
  border-top: 1px solid var(--color-border-subtle);
  padding-top: 20px;
  max-width: 580px;
  margin-left: auto;
  margin-right: auto;
}

/* Footer */
.site-footer {
  background-color: var(--color-dark);
  color: #94A3B8;
  padding-top: 56px;
  padding-bottom: 40px;
  margin-top: auto;
  border-top: 1px solid var(--color-dark-border);
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-dark-border);
}

.footer-brand {
  max-width: 380px;
}

.footer-brand__title {
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1.15rem;
  margin-bottom: 6px;
}

.footer-brand__acronym {
  font-size: 0.85rem;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 10px;
}

.footer-brand__desc {
  font-size: 0.875rem;
  line-height: 1.55;
  color: #94A3B8;
}

.footer-links {
  display: flex;
  gap: 48px;
}

.footer-col__title {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: #FFFFFF;
  margin-bottom: 14px;
}

.footer-nav {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 0.875rem;
  color: #94A3B8;
  transition: color 0.15s ease;
}

.footer-nav a:hover {
  color: #FFFFFF;
}

.footer-bottom {
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 0.8125rem;
}

.footer-disclaimer {
  color: #64748B;
  font-size: 0.75rem;
  line-height: 1.45;
  max-width: 540px;
}

/* Accessibility & Focus */
a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

.skip-link {
  position: absolute;
  top: -60px;
  left: 20px;
  background: var(--color-primary);
  color: #FFFFFF;
  padding: 10px 18px;
  z-index: 999;
  font-weight: 600;
  border-radius: var(--radius-sm);
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 14px;
}

/* Responsive Media Queries */
@media (max-width: 992px) {
  :root {
    --section-spacing: 72px;
  }

  .workflow-strip__pipeline {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .workflow-node__arrow {
    display: none;
  }

  .problem-grid,
  .approach-layout,
  .status-box__grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .status-box {
    padding: 32px 24px;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
    margin-left: auto;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    background-color: #FFFFFF;
    border-bottom: 1px solid var(--color-border);
    padding: 24px;
    box-shadow: var(--shadow-lg);
  }

  .nav-menu.is-active {
    display: block;
  }

  .nav-list {
    flex-direction: column;
    align-items: flex-start;
    gap: 18px;
  }

  .nav-list .btn {
    width: 100%;
    margin-top: 8px;
  }

  .hero {
    padding-top: 48px;
    padding-bottom: 56px;
  }

  .hero__title {
    font-size: clamp(1.65rem, 6.5vw, 2.1rem);
  }

  .hero__actions {
    flex-direction: column;
  }

  .hero__actions .btn {
    width: 100%;
  }

  .workflow-strip__pipeline {
    grid-template-columns: 1fr;
  }

  .contact-card {
    padding: 32px 20px;
  }

  .contact-email-link {
    font-size: 1rem;
    padding: 12px 18px;
    word-break: break-all;
  }

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

  .footer-links {
    flex-direction: column;
    gap: 28px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

@media (max-width: 480px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .brand__subtitle {
    display: none;
  }

  .hero__meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .status-box {
    padding: 24px 16px;
  }

  .problem-card,
  .approach-card,
  .module-card {
    padding: 24px 18px;
  }
}