:root {
  --bg: #0d1424;
  --bg-soft: #121a2b;
  --surface: rgba(16, 23, 38, 0.82);
  --surface-strong: rgba(18, 26, 42, 0.92);
  --surface-accent: #0c1525;
  --text: #eef3fc;
  --muted: #a9b8d3;
  --line: rgba(139, 170, 210, 0.18);
  --accent: #4ad2e6;
  --accent-dark: #2bb3ca;
  --accent-2: #7a8fb5;
  --emerald: #63e0c3;
  --shadow: 0 18px 48px rgba(5, 10, 22, 0.32);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Source Sans 3", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 18% 18%, rgba(74, 210, 230, 0.14), transparent 25%),
    radial-gradient(circle at 78% 12%, rgba(122, 143, 181, 0.16), transparent 30%),
    radial-gradient(circle at 50% 100%, rgba(99, 224, 195, 0.06), transparent 28%),
    linear-gradient(180deg, #0d1424 0%, #101a2b 45%, #0c1525 100%);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(139, 170, 210, 0.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 170, 210, 0.05) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: linear-gradient(180deg, rgba(0, 0, 0, 0.32), transparent 85%);
  opacity: 0.18;
  animation: gridPulse 18s ease-in-out infinite alternate;
}

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

.page-shell {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
  padding: 24px 0 72px;
  animation: pageFade 900ms ease-out both;
}

.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 12px 4px 28px;
}

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

.brand-mark {
  width: 48px;
  height: 48px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #04101c;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  box-shadow: var(--shadow);
}

.brand-name,
h1,
h2,
h3 {
  font-family: "Space Grotesk", sans-serif;
}

.brand-name {
  font-weight: 700;
  font-size: 1rem;
}

.brand-tag {
  color: var(--muted);
  font-size: 0.92rem;
}

.top-nav {
  display: flex;
  gap: 18px;
  color: var(--muted);
  font-weight: 600;
}

.top-nav a:hover {
  color: var(--text);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 32px;
  align-items: center;
  padding: 28px 0 40px;
}

.hero-copy {
  animation: riseIn 900ms ease-out both;
}

.hero-panel {
  position: relative;
  animation: riseIn 1100ms ease-out both;
}

.hero-panel::before {
  content: "";
  position: absolute;
  inset: -18px;
  border-radius: 36px;
  background:
    radial-gradient(circle at 30% 30%, rgba(74, 210, 230, 0.12), transparent 34%),
    radial-gradient(circle at 70% 20%, rgba(122, 143, 181, 0.12), transparent 36%);
  filter: blur(18px);
  z-index: -1;
  animation: glowShift 8s ease-in-out infinite alternate;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 12px;
  border-radius: 999px;
  border: 1px solid rgba(94, 231, 255, 0.18);
  background: rgba(10, 22, 43, 0.62);
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

h1 {
  font-size: clamp(3rem, 6vw, 5.2rem);
  line-height: 0.96;
  margin: 18px 0 18px;
  max-width: 12ch;
}

.hero-lead {
  font-size: 1.35rem;
  line-height: 1.45;
  color: #dbe8ff;
  max-width: 38rem;
}

.hero-support,
.section-intro p,
.panel p,
.info-card p,
.audience-card p,
.cta-card p,
.faq-list p {
  color: var(--muted);
  line-height: 1.6;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin: 28px 0 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 20px;
  border-radius: 999px;
  font-weight: 700;
  transition:
    transform 180ms ease,
    background 180ms ease,
    color 180ms ease,
    box-shadow 180ms ease,
    border-color 180ms ease;
}

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

.button-primary {
  background: var(--accent);
  color: #04101c;
  box-shadow: 0 18px 30px rgba(94, 231, 255, 0.22);
}

.button-primary:hover {
  background: var(--accent-dark);
}

.button-secondary {
  border: 1px solid var(--line);
  background: rgba(10, 22, 43, 0.65);
}

.button-secondary:hover {
  border-color: rgba(94, 231, 255, 0.28);
  box-shadow: 0 12px 26px rgba(6, 20, 45, 0.28);
}

.hero-note {
  color: var(--muted);
  font-size: 0.98rem;
}

.panel,
.info-card,
.audience-card,
.step-card,
.bullet-card,
.cta-card,
.faq-list details,
.highlight-card {
  background: var(--surface);
  border: 1px solid var(--line);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    box-shadow 220ms ease,
    background 220ms ease;
}

.window {
  border-radius: var(--radius-lg);
  overflow: hidden;
  animation: floatPanel 7s ease-in-out infinite;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 18px;
  background: rgba(5, 13, 26, 0.96);
  color: #eff5ff;
}

.panel-title {
  margin-left: 8px;
  font-size: 0.95rem;
  color: rgba(236, 243, 255, 0.74);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
}

.dot-red {
  background: #ef7f68;
}

.dot-yellow {
  background: #f5bf63;
}

.dot-green {
  background: #77c08f;
}

.snapshot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 16px;
  background:
    radial-gradient(circle at top left, rgba(74, 210, 230, 0.08), transparent 30%),
    radial-gradient(circle at top right, rgba(122, 143, 181, 0.08), transparent 34%),
    linear-gradient(180deg, rgba(12, 18, 32, 0.98), rgba(14, 22, 36, 0.94));
}

.metric-card,
.feed-card,
.status-card {
  border-radius: 18px;
  padding: 18px;
  background: rgba(15, 28, 53, 0.88);
  border: 1px solid rgba(136, 175, 255, 0.12);
  transition:
    transform 220ms ease,
    border-color 220ms ease,
    background 220ms ease,
    box-shadow 220ms ease;
}

.metric-card:hover,
.feed-card:hover,
.status-card:hover,
.info-card:hover,
.audience-card:hover,
.step-card:hover,
.bullet-card:hover,
.highlight-card:hover {
  transform: translateY(-4px);
  border-color: rgba(94, 231, 255, 0.24);
  box-shadow: 0 24px 54px rgba(2, 8, 24, 0.5);
}

.metric-label,
.feed-title {
  color: var(--muted);
  font-weight: 700;
  margin-bottom: 10px;
}

.metric-value {
  font-family: "Space Grotesk", sans-serif;
  font-size: 2.4rem;
  line-height: 1;
  color: var(--accent);
}

.metric-foot,
.status-context {
  color: var(--muted);
  font-size: 0.92rem;
}

.feed-list {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  line-height: 1.6;
}

.status-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 14px;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(103, 240, 207, 0.12);
  color: var(--emerald);
  font-weight: 700;
  font-size: 0.85rem;
  box-shadow: inset 0 0 0 1px rgba(103, 240, 207, 0.12);
}

.status-card h3 {
  margin: 0 0 10px;
  font-size: 1.1rem;
}

.status-card p {
  margin: 0;
  color: var(--muted);
  line-height: 1.55;
}

.content-section {
  padding: 64px 0;
  animation: riseIn 900ms ease-out both;
}

.accent-section {
  padding: 72px 28px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top right, rgba(74, 210, 230, 0.12), transparent 26%),
    radial-gradient(circle at bottom left, rgba(122, 143, 181, 0.12), transparent 34%),
    linear-gradient(135deg, rgba(12, 18, 32, 0.98), rgba(16, 26, 40, 0.95));
  color: #eef3fc;
  border: 1px solid rgba(139, 170, 210, 0.14);
  box-shadow: var(--shadow);
}

.accent-section .eyebrow {
  border-color: rgba(94, 231, 255, 0.24);
  background: rgba(94, 231, 255, 0.06);
  color: var(--accent);
}

.accent-section p,
.accent-section .section-intro p {
  color: rgba(236, 243, 255, 0.76);
}

.section-intro {
  max-width: 760px;
  margin-bottom: 30px;
}

.section-intro.narrow {
  max-width: 680px;
}

h2 {
  font-size: clamp(2rem, 4.2vw, 3.5rem);
  line-height: 1.02;
  margin: 14px 0 16px;
  max-width: 14ch;
}

.problem-layout {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 20px;
}

.soft-panel {
  padding: 22px;
  border-radius: var(--radius-lg);
}

.bullet-panel {
  display: grid;
  gap: 12px;
}

.bullet-card {
  padding: 16px 18px;
  border-radius: 16px;
  font-weight: 600;
}

.solution-highlights,
.steps-grid,
.cards-grid,
.tags-grid,
.principles-list {
  display: grid;
  gap: 16px;
}

.solution-highlights {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
}

.highlight-card {
  padding: 22px;
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.04);
  border-color: rgba(136, 175, 255, 0.12);
  box-shadow: none;
}

.highlight-card:hover {
  box-shadow: 0 18px 38px rgba(4, 10, 24, 0.32);
}

.highlight-card p {
  color: rgba(246, 239, 228, 0.78);
}

.steps-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.step-card {
  padding: 24px;
  border-radius: 22px;
}

.step-number {
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 22px;
  text-shadow: 0 0 18px rgba(94, 231, 255, 0.2);
}

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

.cards-grid.three-col {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.info-card,
.audience-card {
  padding: 24px;
  border-radius: 22px;
}

.info-card h3,
.audience-card h3,
.highlight-card h3,
.step-card h3 {
  margin: 0 0 10px;
  font-size: 1.22rem;
}

.tags-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.tags-grid span {
  display: inline-flex;
  justify-content: center;
  align-items: center;
  min-height: 62px;
  padding: 14px 18px;
  border-radius: 18px;
  background: rgba(16, 24, 38, 0.78);
  border: 1px solid var(--line);
  font-weight: 700;
  text-align: center;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.tags-grid span:hover {
  transform: translateY(-3px);
  border-color: rgba(94, 231, 255, 0.24);
  background: rgba(16, 30, 57, 0.9);
}

.principles-list {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.principles-list div {
  padding: 18px 20px;
  border-radius: 18px;
  background: rgba(16, 24, 38, 0.78);
  border: 1px solid var(--line);
  font-weight: 700;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.principles-list div:hover {
  transform: translateY(-3px);
  border-color: rgba(94, 231, 255, 0.24);
}

.future-section {
  position: relative;
}

.faq-list {
  display: grid;
  gap: 14px;
}

.faq-list details {
  padding: 18px 20px;
  border-radius: 18px;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.faq-list details:hover {
  transform: translateY(-2px);
  border-color: rgba(94, 231, 255, 0.2);
}

.faq-list summary {
  cursor: pointer;
  font-family: "Space Grotesk", sans-serif;
  font-weight: 700;
  list-style: none;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list p {
  margin: 12px 0 0;
}

.cta-section {
  padding: 30px 0 0;
}

.cta-card {
  padding: 34px;
  border-radius: 34px;
  background:
    radial-gradient(circle at top left, rgba(94, 231, 255, 0.12), transparent 30%),
    radial-gradient(circle at top right, rgba(124, 140, 255, 0.14), transparent 36%),
    linear-gradient(135deg, rgba(10, 20, 40, 0.96), rgba(13, 25, 48, 0.96));
  border: 1px solid rgba(136, 175, 255, 0.12);
  position: relative;
  overflow: hidden;
}

.cta-card::after {
  content: "";
  position: absolute;
  inset: auto -10% -30% 40%;
  height: 160px;
  background: radial-gradient(circle, rgba(94, 231, 255, 0.18), transparent 60%);
  filter: blur(20px);
  pointer-events: none;
  animation: ctaGlow 7s ease-in-out infinite alternate;
}

.site-footer {
  display: flex;
  justify-content: center;
  padding: 22px 0 6px;
}

.footer-version {
  color: var(--muted);
  font-size: 0.92rem;
  letter-spacing: 0.03em;
}

@keyframes pageFade {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

@keyframes riseIn {
  from {
    opacity: 0;
    transform: translateY(18px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes floatPanel {
  0% {
    transform: translateY(0px);
  }
  50% {
    transform: translateY(-6px);
  }
  100% {
    transform: translateY(0px);
  }
}

@keyframes glowShift {
  0% {
    transform: translate3d(0, 0, 0) scale(1);
    opacity: 0.9;
  }
  100% {
    transform: translate3d(8px, -10px, 0) scale(1.04);
    opacity: 1;
  }
}

@keyframes gridPulse {
  0% {
    opacity: 0.18;
  }
  100% {
    opacity: 0.32;
  }
}

@keyframes ctaGlow {
  0% {
    transform: translateX(-4%) translateY(0);
    opacity: 0.65;
  }
  100% {
    transform: translateX(8%) translateY(-8px);
    opacity: 1;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

@media (max-width: 1100px) {
  .hero,
  .problem-layout,
  .solution-highlights,
  .steps-grid,
  .cards-grid.three-col,
  .tags-grid,
  .principles-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .hero {
    align-items: start;
  }
}

@media (max-width: 780px) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    transform: none !important;
    filter: none !important;
    backdrop-filter: none !important;
    text-shadow: none !important;
  }

  html {
    scroll-behavior: auto;
  }

  body {
    background: linear-gradient(180deg, #07111f 0%, #091426 55%, #07101d 100%);
  }

  body::before {
    display: none;
  }

  .hero-panel::before,
  .cta-card::after {
    content: none !important;
    display: none !important;
  }

  .page-shell {
    width: min(100% - 20px, 1000px);
    padding-top: 14px;
  }

  .page-shell,
  .hero-copy,
  .hero-panel,
  .content-section {
    animation: none;
  }

  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .top-nav {
    flex-wrap: wrap;
    gap: 12px;
  }

  .hero,
  .problem-layout,
  .solution-highlights,
  .steps-grid,
  .cards-grid,
  .cards-grid.three-col,
  .tags-grid,
  .principles-list,
  .snapshot-grid {
    grid-template-columns: 1fr;
  }

  .accent-section {
    padding: 48px 18px;
    border-radius: 24px;
  }

  .hero-panel::before,
  .cta-card::after {
    display: none;
  }

  .window {
    animation: none;
  }

  .panel,
  .info-card,
  .audience-card,
  .step-card,
  .bullet-card,
  .cta-card,
  .faq-list details,
  .highlight-card {
    backdrop-filter: none;
    box-shadow: none;
  }

  .metric-card,
  .feed-card,
  .status-card,
  .info-card,
  .audience-card,
  .step-card,
  .bullet-card,
  .highlight-card,
  .tags-grid span,
  .principles-list div,
  .faq-list details,
  .button {
    transition: none;
  }

  .hero,
  .content-section {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .hero {
    gap: 18px;
  }

  .snapshot-grid,
  .accent-section,
  .cta-card {
    background:
      linear-gradient(180deg, rgba(8, 17, 33, 0.98), rgba(10, 20, 40, 0.95));
  }

  .accent-section,
  .cta-card,
  .window,
  .soft-panel,
  .info-card,
  .audience-card,
  .step-card,
  .bullet-card,
  .highlight-card,
  .faq-list details {
    border-radius: 18px;
  }

  .metric-card:hover,
  .feed-card:hover,
  .status-card:hover,
  .info-card:hover,
  .audience-card:hover,
  .step-card:hover,
  .bullet-card:hover,
  .highlight-card:hover,
  .tags-grid span:hover,
  .principles-list div:hover,
  .faq-list details:hover,
  .button:hover {
    transform: none;
    box-shadow: inherit;
  }

  .panel,
  .metric-card,
  .feed-card,
  .status-card,
  .info-card,
  .audience-card,
  .step-card,
  .bullet-card,
  .highlight-card,
  .soft-panel,
  .faq-list details,
  .cta-card,
  .tags-grid span,
  .principles-list div {
    background: rgba(12, 22, 43, 0.96);
    background-image: none !important;
  }

  h1 {
    max-width: none;
    font-size: 2.7rem;
  }

  h2 {
    max-width: none;
    font-size: 2rem;
  }

  .hero-lead {
    font-size: 1.15rem;
  }

  .hero-support,
  .section-intro p,
  .panel p,
  .info-card p,
  .audience-card p,
  .cta-card p,
  .faq-list p {
    font-size: 1rem;
  }

  .cta-card,
  .step-card,
  .info-card,
  .audience-card,
  .soft-panel {
    padding: 20px;
  }
}