:root {
  --bg: #06111a;
  --bg-soft: rgba(10, 24, 36, 0.88);
  --panel: rgba(9, 19, 31, 0.78);
  --panel-strong: rgba(11, 22, 36, 0.95);
  --line: rgba(70, 120, 180, 0.22);
  --line-strong: rgba(84, 179, 255, 0.45);
  --text: #e5f0ff;
  --muted: #9bb5d6;
  --primary: #3b82f6;
  --accent: #22d3ee;
  --shadow: 0 20px 40px rgba(0, 0, 0, 0.35);
  --radius: 20px;
  --container: 1280px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(34, 211, 238, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(59, 130, 246, 0.16), transparent 28%),
    linear-gradient(180deg, #030711 0%, #07111d 50%, #030711 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background: linear-gradient(rgba(255, 255, 255, 0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.015) 1px, transparent 1px);
  background-size: 64px 64px;
  pointer-events: none;
  opacity: 0.3;
}

.site-shell {
  position: relative;
  overflow: hidden;
}

.noise,
.grid {
  position: fixed;
  inset: 0;
  pointer-events: none;
}

.noise {
  opacity: 0.06;
  background-image: radial-gradient(#ffffff 0.4px, transparent 0.4px);
  background-size: 10px 10px;
}

.grid {
  background: linear-gradient(rgba(59, 130, 246, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(59, 130, 246, 0.08) 1px, transparent 1px);
  background-size: 120px 120px;
  mask-image: radial-gradient(circle at center, black 45%, transparent 90%);
  opacity: 0.22;
}

.container {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
}

.topbar {
  width: min(calc(100% - 32px), var(--container));
  margin: 0 auto;
  padding: 24px 0 8px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(12px);
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 16px;
  height: 16px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--primary));
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.7);
}

.eyebrow,
.section-tag,
.topnav a,
.terminal-label,
.timeline-index,
.role,
.cert-item strong {
  font-family: "JetBrains Mono", monospace;
}

.eyebrow,
.section-tag,
.terminal-label,
.role,
.topnav a {
  color: var(--accent);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.topbar h1,
.hero h2,
h3,
h4,
p {
  margin: 0;
}

.topbar h1 {
  font-size: 1rem;
  letter-spacing: 0.2em;
}

.topnav {
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
}

.lang-switch {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px;
  border: 1px solid rgba(84, 179, 255, 0.2);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.03);
}

.lang-button {
  border: 0;
  background: transparent;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  padding: 8px 12px;
  border-radius: 999px;
  cursor: pointer;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.lang-button:hover {
  color: var(--text);
  transform: translateY(-1px);
}

.lang-button.is-active {
  color: var(--text);
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.9), rgba(34, 211, 238, 0.55));
}

.topnav a,
.contact-grid a,
.button {
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease, color 180ms ease;
}

.topnav a {
  color: var(--muted);
  font-size: 0.83rem;
}

.topnav a:hover,
.contact-grid a:hover {
  color: var(--text);
}

.hero {
  padding: 92px 0 64px;
  display: grid;
  grid-template-columns: 1.3fr 0.9fr;
  gap: 24px;
  align-items: stretch;
}

.card {
  position: relative;
  padding: 32px;
  background: linear-gradient(180deg, rgba(10, 23, 36, 0.88), rgba(6, 15, 25, 0.92));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  padding: 1px;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.45), rgba(34, 211, 238, 0.18), transparent 70%);
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.hero-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 24px;
}

.hero h2 {
  max-width: 12ch;
  font-size: clamp(3rem, 6vw, 4.8rem);
  line-height: 1.02;
}

.lead {
  max-width: 60ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.link-strip {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.link-strip a {
  text-decoration: none;
  color: var(--text);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.88rem;
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid rgba(84, 179, 255, 0.22);
  background: rgba(255, 255, 255, 0.025);
  transition: transform 180ms ease, border-color 180ms ease, color 180ms ease;
}

.link-strip a:hover,
.resource-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 18px;
  border-radius: 14px;
  border: 1px solid var(--line-strong);
  color: var(--text);
}

.button:hover {
  transform: translateY(-2px);
}

.button.primary {
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.95), rgba(34, 211, 238, 0.7));
  box-shadow: 0 12px 32px rgba(59, 130, 246, 0.28);
}

.button.secondary {
  background: rgba(255, 255, 255, 0.02);
}

.quick-stats {
  list-style: none;
  padding: 0;
  margin: 4px 0 0;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.quick-stats li,
.status-grid div,
.cert-item,
.signal-feed .signal-item {
  border: 1px solid rgba(85, 144, 205, 0.18);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 16px;
}

.quick-stats li {
  padding: 16px;
}

.quick-stats strong {
  display: block;
  font-size: 1.8rem;
}

.quick-stats span,
.simple-list,
.check-list li,
.detail-list li,
.cert-item span,
.signal-feed .signal-item span,
.status-grid span,
.contact-card p,
.section-grid p,
.timeline-item p {
  color: var(--muted);
}

.terminal {
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.terminal-top {
  display: flex;
  gap: 8px;
}

.terminal-top span {
  width: 12px;
  height: 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.2);
}

.terminal-stream {
  min-height: 180px;
  display: grid;
  gap: 10px;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.95rem;
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.status-grid div {
  padding: 14px;
}

.status-grid strong {
  display: block;
  margin-top: 4px;
}

section {
  padding: 64px 0;
}

.section-grid {
  /* Increased spacing to prevent cards from touching */
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 48px;
}

.large-left {
  grid-template-columns: 1.3fr 0.7fr;
}

.section-heading {
  margin-bottom: 24px;
}

.section-heading h3,
.section-grid h3,
.contact-card h3 {
  margin-top: 8px;
  font-size: clamp(1.7rem, 2vw, 2.4rem);
}

.pill-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 20px;
}

.pill-grid span {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(78, 160, 255, 0.24);
  background: rgba(59, 130, 246, 0.06);
  color: #dbeafe;
}

.mini-grid,
.resource-grid {
  margin-top: 20px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 32px;
}

.mini-card,
.resource-card {
  border: 1px solid rgba(85, 144, 205, 0.18);
  background: rgba(255, 255, 255, 0.02);
  border-radius: 16px;
  padding: 16px;
}

.mini-card strong,
.resource-card strong {
  display: block;
  margin-bottom: 8px;
}

.mini-card span,
.resource-card span,
.section-copy {
  color: var(--muted);
}

.resource-card {
  text-decoration: none;
  color: var(--text);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.profile-stack {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.transcript-grid {
  margin-top: 20px;
}

.transcript-summary {
  margin-top: 22px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}

.transcript-stat {
  padding: 16px 18px;
  border: 1px solid rgba(84, 179, 255, 0.18);
  border-radius: 16px;
  background: linear-gradient(180deg, rgba(59, 130, 246, 0.08), rgba(255, 255, 255, 0.02));
}

.transcript-stat span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.8rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}

.transcript-stat strong {
  display: block;
  font-size: 1.4rem;
}

.training-section {
  margin-top: 26px;
}

.transcript-modules {
  margin-top: 24px;
}

.subsection-label {
  margin: 0 0 14px;
  color: var(--accent);
  font-family: "JetBrains Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.path-card {
  position: relative;
}

.cert-groups {
  display: grid;
  gap: 20px;
}

.cert-group {
  padding-top: 2px;
}

.cert-group .cert-list {
  margin-top: 0;
}

.profile-link {
  min-height: auto;
}

.timeline {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
}

.timeline-item {
  min-height: 260px;
}

.detail-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 12px;
  line-height: 1.7;
}

.timeline-index {
  display: inline-block;
  margin-bottom: 16px;
  color: var(--accent);
}

.role {
  display: inline-block;
  margin: 10px 0 18px;
  font-size: 0.88rem;
}

.cert-list {
  margin-top: 24px;
  display: grid;
  gap: 12px;
}

.cert-item {
  padding: 16px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.simple-list,
.check-list {
  margin: 20px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 12px;
}

.check-list.compact {
  margin-top: 18px;
}

.signal-feed {
  margin-top: 20px;
  display: grid;
  gap: 12px;
}

.signal-feed .signal-item {
  padding: 14px;
}

.signal-feed .signal-item strong {
  display: block;
  margin-bottom: 6px;
}

.contact-wrap {
  padding-bottom: 96px;
}

.contact-card {
  display: grid;
  gap: 18px;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  align-items: start;
}

.contact-method {
  text-decoration: none;
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.contact-method:hover,
.social-link:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
}

.social-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.contact-channel-grid .social-link {
  min-height: 108px;
}

.social-link {
  min-height: 100%;
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  text-decoration: none;
  color: var(--text);
  border-radius: 16px;
  border: 1px solid rgba(84, 179, 255, 0.2);
  background: rgba(255, 255, 255, 0.02);
  transition: transform 180ms ease, border-color 180ms ease, box-shadow 180ms ease;
}

.social-icon {
  width: 48px;
  height: 48px;
  flex: 0 0 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 14px;
  color: #dbeafe;
  background: linear-gradient(135deg, rgba(59, 130, 246, 0.22), rgba(34, 211, 238, 0.1));
  box-shadow: inset 0 0 0 1px rgba(84, 179, 255, 0.18);
}

.social-icon svg {
  width: 24px;
  height: 24px;
}

.social-copy {
  display: grid;
  gap: 6px;
}

.social-copy strong {
  font-size: 1rem;
}

.social-copy span {
  color: var(--muted);
  line-height: 1.5;
}

@media (max-width: 1023px) {
  .hero,
  .section-grid,
  .large-left,
  .timeline,
  .mini-grid,
  .resource-grid,
  .transcript-summary,
  .contact-layout,
  .social-grid {
    grid-template-columns: 1fr;
  }

  .hero h2 {
    max-width: none;
  }

  .topbar {
    position: static;
    padding-top: 20px;
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .topnav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 10px;
  }

  .topnav a {
    min-height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 10px 12px;
    text-align: center;
    border: 1px solid rgba(84, 179, 255, 0.16);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
  }

  .lang-switch {
    align-self: flex-start;
  }
}

@media (max-width: 767px) {
  .container,
  .topbar {
    width: min(calc(100% - 24px), var(--container));
  }

  section {
    padding: 44px 0;
  }

  .card {
    padding: 22px;
    border-radius: 18px;
  }

  .hero {
    padding-top: 20px;
    gap: 18px;
  }

  .hero h2 {
    font-size: clamp(2.25rem, 12vw, 3rem);
    line-height: 1.05;
  }

  .lead {
    font-size: 0.98rem;
    line-height: 1.7;
  }

  .topbar {
    gap: 14px;
  }

  .brand-block {
    align-items: flex-start;
  }

  .topbar h1 {
    font-size: 0.92rem;
    letter-spacing: 0.14em;
  }

  .topnav {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .topnav a {
    font-size: 0.76rem;
    padding: 10px;
  }

  .lang-switch {
    width: 100%;
    justify-content: space-between;
  }

  .lang-button {
    flex: 1 1 0;
  }

  .hero-actions {
    display: grid;
    grid-template-columns: 1fr;
    width: 100%;
  }

  .hero-actions .button {
    width: 100%;
  }

  .link-strip {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .link-strip a {
    min-height: 44px;
    justify-content: center;
    text-align: center;
  }

  .quick-stats,
  .status-grid {
    grid-template-columns: 1fr;
  }

  .quick-stats li,
  .status-grid div {
    padding: 14px;
  }

  .terminal {
    gap: 14px;
  }

  .terminal-stream {
    min-height: 0;
    font-size: 0.85rem;
  }

  .section-heading h3,
  .section-grid h3,
  .contact-card h3 {
    font-size: clamp(1.5rem, 7vw, 1.9rem);
  }

  .pill-grid {
    gap: 10px;
  }

  .mini-card,
  .resource-card,
  .cert-item,
  .social-link {
    padding: 14px 16px;
  }

  .transcript-stat strong {
    font-size: 1.25rem;
  }

  .detail-list,
  .simple-list,
  .check-list {
    gap: 10px;
  }

  .social-link {
    align-items: flex-start;
  }

  .contact-channel-grid .social-link {
    min-height: 92px;
  }

  .cert-item {
    align-items: flex-start;
    flex-direction: column;
  }
}

/* === Phase 1 Critical Fixes === */

/* Fix 2: h4 Styling */
h4 {
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0;
  color: var(--text);
}

/* Fix 3: Focus Indicators for Accessibility */
a:focus,
button:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.lang-button:focus {
  background: rgba(34, 211, 238, 0.2);
}

/* Fix 5: Skip Link Styling */
.skip-link {
  position: absolute;
  top: -100px;
  left: 0;
  background: var(--accent);
  color: var(--bg);
  padding: 12px 24px;
  text-decoration: none;
  font-weight: 600;
  border-radius: 0 0 8px 0;
  z-index: 100;
  transition: top 0.3s;
}

.skip-link:focus {
  top: 0;
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* === Phase 2 Improvements === */

/* Scroll Progress Indicator */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: rgba(59, 130, 246, 0.1);
  z-index: 999;
}

.progress-bar {
  height: 100%;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  width: 0%;
  transition: width 0.1s ease-out;
}

/* Active Navigation Link (Scroll Spy) */
.topnav a.active {
  color: var(--accent);
  background: rgba(34, 211, 238, 0.1);
}

/* Responsive Gap Improvements */
@media (max-width: 767px) {
  .section-grid,
  .mini-grid,
  .resource-grid,
  .pill-grid {
    gap: 24px !important;
  }
  
  .quick-stats {
    gap: 24px !important;
  }
  
  .status-grid {
    gap: 12px !important;
  }
}

/* === Phase 3: Accessibility & Performance === */

/* Prefers Reduced Motion Support */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  
  .progress-bar {
    transition: none !important;
  }
}

/* Smooth Scrolling Enhancement */
html {
  scroll-behavior: smooth;
}

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