* {
  box-sizing: border-box;
}

:root {
  color-scheme: dark;
  --bg: #070a0d;
  --bg-elevated: #0c1117;
  --bg-panel: #0f1419;
  --bg-card: #131a22;
  --border: rgba(101, 179, 174, 0.18);
  --border-subtle: rgba(255, 255, 255, 0.06);
  --text: #e8f4f3;
  --muted: #8a9ba3;
  --accent: #65b3ae;
  --accent-bright: #7de8e0;
  --accent-glow: rgba(101, 179, 174, 0.4);
  --accent-soft: rgba(101, 179, 174, 0.1);
  --gradient-start: #65b3ae;
  --gradient-end: #4ecdc4;
}

html,
body {
  height: 100%;
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family:
    'Instrument Sans',
    system-ui,
    -apple-system,
    sans-serif;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

code,
.mono {
  font-family: 'DM Mono', monospace;
  font-size: 0.9em;
}

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

.gradient-text {
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-end)
  );
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ───────────────────────────────────────────────────────── PAGE */
.page {
  min-height: 100%;
  display: flex;
  flex-direction: column;
  padding: 28px max(24px, 7vw) 56px;
  overflow-x: hidden;
  background-image:
    radial-gradient(
      ellipse 80% 60% at 10% 0%,
      rgba(101, 179, 174, 0.12),
      transparent 50%
    ),
    radial-gradient(
      ellipse 50% 40% at 90% 10%,
      rgba(78, 205, 196, 0.08),
      transparent 40%
    );
}

/* ───────────────────────────────────────────────────────── NAV */
.nav {
  display: flex;
  align-items: center;
  gap: 24px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--border-subtle);
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.05rem;
}

.logo-glyph {
  font-size: 1.3rem;
  color: var(--accent);
}

.logo-tag {
  font-size: 0.7rem;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.nav-links {
  display: flex;
  gap: 20px;
  margin-left: auto;
  font-size: 0.92rem;
  color: var(--muted);
}

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

.nav-cta {
  padding: 9px 18px;
  border-radius: 8px;
  border: 1px solid var(--border);
  font-size: 0.9rem;
  font-weight: 500;
  transition: border-color 0.2s;
}

.nav-cta:hover {
  border-color: var(--accent);
}

/* ───────────────────────────────────────────────────────── MAIN */
main {
  flex: 1;
}

/* ───────────────────────────────────────────────────────── HERO */
.hero {
  margin-top: 64px;
  display: grid;
  grid-template-columns: 1fr 360px;
  gap: 48px;
  align-items: start;
}

.hero-badge {
  display: inline-block;
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 20px;
}

.hero h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  font-weight: 700;
  line-height: 1.12;
  margin: 0 0 24px;
}

.hero-sub {
  color: var(--muted);
  font-size: 1.1rem;
  max-width: 560px;
  margin: 0 0 28px;
}

.hero-sub strong {
  color: var(--text);
}

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

.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 10px;
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-end)
  );
  color: #062224;
  font-weight: 600;
  font-size: 0.95rem;
  transition: box-shadow 0.2s;
}

.btn-primary:hover {
  box-shadow: 0 4px 24px var(--accent-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 26px;
  border-radius: 10px;
  border: 1px solid var(--border);
  font-weight: 500;
  font-size: 0.95rem;
  transition: border-color 0.2s;
}

.btn-outline:hover {
  border-color: var(--accent);
}

/* CREDENTIAL CARD */
.hero-aside {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.credential-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 20px;
  box-shadow: 0 16px 48px rgba(0, 0, 0, 0.4);
}

.credential-header {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  margin-bottom: 16px;
}

.credential-icon {
  width: 28px;
  height: 28px;
  border-radius: 8px;
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-end)
  );
  color: #062224;
  display: grid;
  place-items: center;
  font-size: 0.9rem;
}

.credential-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.credential-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
}

.credential-row .label {
  color: var(--muted);
}

.credential-row .value {
  font-weight: 500;
}

.credential-row .value.highlight {
  color: var(--accent-bright);
}

.credential-footer {
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.82rem;
  color: var(--muted);
}

.pulse {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 var(--accent-glow);
  }
  50% {
    box-shadow: 0 0 0 6px transparent;
  }
}

.hero-aside-note {
  font-size: 0.88rem;
  color: var(--muted);
  text-align: center;
  margin: 0;
}

/* ───────────────────────────────────────────────────────── SECTION */
.section {
  margin-top: 100px;
}

.section-intro {
  max-width: 720px;
}

.section-label {
  display: inline-block;
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--accent);
  margin-bottom: 14px;
}

.section-intro h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 700;
  line-height: 1.2;
  margin: 0 0 16px;
}

.section-desc {
  color: var(--muted);
  font-size: 1.05rem;
  margin: 0;
}

.section-desc strong {
  color: var(--text);
}

/* ───────────────────────────────────────────────────────── PROBLEM */
.pain-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.pain-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
  padding: 24px;
}

.pain-icon {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

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

.pain-card p {
  color: var(--muted);
  margin: 0;
  font-size: 0.95rem;
}

.pain-card strong {
  color: var(--text);
}

/* ───────────────────────────────────────────────────────── KIT */
.kit-grid {
  margin-top: 40px;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.kit-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  display: flex;
  flex-direction: column;
}

.kit-number {
  width: 32px;
  height: 32px;
  border-radius: 10px;
  background: var(--accent-soft);
  color: var(--accent);
  font-weight: 700;
  display: grid;
  place-items: center;
  margin-bottom: 16px;
}

.kit-card h3 {
  font-size: 1.15rem;
  margin: 0 0 4px;
}

.kit-tech {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin: 0 0 14px;
}

.kit-card > p {
  color: var(--muted);
  margin: 0 0 16px;
  font-size: 0.95rem;
  flex: 1;
}

.kit-card strong,
.kit-card em {
  color: var(--text);
  font-style: normal;
}

.kit-list {
  margin: 0 0 16px;
  padding-left: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

.kit-list li {
  margin-bottom: 6px;
}

.kit-list strong {
  color: var(--text);
}

.kit-api {
  margin-top: auto;
  padding: 10px 14px;
  background: var(--bg-elevated);
  border-radius: 8px;
  font-size: 0.82rem;
  color: var(--accent);
  overflow-x: auto;
}

/* ───────────────────────────────────────────────────────── FLOW */
.flow {
  margin-top: 40px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.flow-step {
  display: grid;
  grid-template-columns: 48px 1fr;
  gap: 20px;
  padding: 24px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: 14px;
}

.flow-num {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-end)
  );
  color: #062224;
  font-weight: 700;
  font-size: 1.2rem;
  display: grid;
  place-items: center;
}

.flow-content h4 {
  margin: 0 0 8px;
  font-size: 1.1rem;
}

.flow-content p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
}

.flow-content strong {
  color: var(--text);
}

.flow-connector {
  width: 2px;
  height: 24px;
  background: var(--border);
  margin-left: 47px;
}

/* ───────────────────────────────────────────────────────── STORIES */
.stories-section {
  margin-top: 80px;
}

.stories-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}

.story-card {
  background: linear-gradient(
    135deg,
    rgba(101, 179, 174, 0.08),
    var(--bg-panel)
  );
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 28px;
}

.story-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--accent);
}

.story-card h3 {
  margin: 12px 0 14px;
  font-size: 1.2rem;
}

.story-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-style: italic;
}

.story-card strong {
  color: var(--text);
  font-style: normal;
}

/* ───────────────────────────────────────────────────────── EXAMPLES */
.examples-section .section-intro.centered {
  text-align: center;
  max-width: 100%;
}

.examples-section .section-intro.centered .section-desc {
  max-width: 600px;
  margin: 0 auto;
}

.demo-grid {
  margin-top: 48px;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.demo-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  transition:
    border-color 0.25s,
    box-shadow 0.25s,
    transform 0.25s;
}

.demo-card:hover {
  border-color: var(--accent);
  box-shadow: 0 16px 48px rgba(101, 179, 174, 0.18);
  transform: translateY(-4px);
}

.demo-preview {
  background: var(--bg-elevated);
  border-bottom: 1px solid var(--border-subtle);
}

.demo-browser {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-subtle);
}

.browser-dots {
  display: flex;
  gap: 6px;
}

.browser-dots span {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.15);
}

.browser-dots span:first-child {
  background: #ff5f57;
}

.browser-dots span:nth-child(2) {
  background: #ffbd2e;
}

.browser-dots span:nth-child(3) {
  background: #28ca41;
}

.browser-url {
  flex: 1;
  text-align: center;
  font-size: 0.78rem;
  color: var(--muted);
  font-family: 'DM Mono', monospace;
}

.demo-visual {
  height: 160px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.demo-mock-ui {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

.mock-badge {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--accent);
  background: var(--accent-soft);
  padding: 6px 14px;
  border-radius: 999px;
}

.mock-flow {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
}

.mock-step {
  padding: 8px 14px;
  border-radius: 8px;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  color: var(--muted);
}

.mock-step.done {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-bright);
}

.mock-step.active {
  background: linear-gradient(
    135deg,
    var(--gradient-start),
    var(--gradient-end)
  );
  border-color: transparent;
  color: #062224;
  font-weight: 600;
}

.mock-arrow {
  color: var(--muted);
  font-size: 0.9rem;
}

.mock-vault {
  display: flex;
  gap: 32px;
}

.mock-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.stat-label {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
}

.stat-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--text);
}

.stat-value.highlight {
  color: var(--accent-bright);
}

.demo-info {
  padding: 24px;
}

.demo-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 12px;
}

.demo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 1.2rem;
  display: grid;
  place-items: center;
}

.demo-info h3 {
  margin: 0;
  font-size: 1.2rem;
}

.demo-info p {
  margin: 0 0 16px;
  color: var(--muted);
  font-size: 0.95rem;
}

.demo-cta {
  display: inline-block;
  color: var(--accent-bright);
  font-weight: 600;
  font-size: 0.95rem;
  transition: color 0.2s;
}

.demo-card:hover .demo-cta {
  color: var(--text);
}

/* ───────────────────────────────────────────────────────── CTA */
.cta {
  margin-top: 100px;
  padding: 40px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: linear-gradient(
    135deg,
    rgba(101, 179, 174, 0.12),
    var(--bg-panel)
  );
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.cta-content h2 {
  margin: 0 0 8px;
  font-size: 1.5rem;
}

.cta-content p {
  margin: 0;
  color: var(--muted);
}

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

/* ───────────────────────────────────────────────────────── FOOTER */
.footer {
  margin-top: 80px;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}

.footer p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
}

/* ───────────────────────────────────────────────────────── RESPONSIVE */
@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-aside {
    max-width: 360px;
  }

  .pain-grid,
  .kit-grid {
    grid-template-columns: 1fr;
  }

  .stories-grid,
  .demo-grid {
    grid-template-columns: 1fr;
  }

  .demo-card {
    max-width: 520px;
  }
}

@media (max-width: 768px) {
  .page {
    padding: 20px 20px 36px;
  }

  .nav {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }

  .logo {
    justify-content: center;
  }

  .nav-links {
    margin-left: 0;
    justify-content: center;
    flex-wrap: wrap;
    gap: 12px 20px;
  }

  .nav-cta {
    width: 100%;
    text-align: center;
    padding: 12px 18px;
  }

  .hero {
    margin-top: 36px;
    gap: 32px;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero-sub {
    font-size: 1rem;
  }

  .hero-actions {
    flex-direction: column;
    width: 100%;
  }

  .hero-actions .btn-primary,
  .hero-actions .btn-outline {
    width: 100%;
    text-align: center;
  }

  .hero-aside {
    max-width: 100%;
  }

  .credential-card {
    padding: 18px;
  }

  .section {
    margin-top: 64px;
  }

  .section-intro h2 {
    font-size: 1.5rem;
  }

  .pain-grid {
    gap: 14px;
  }

  .pain-card {
    padding: 20px;
  }

  .kit-grid {
    gap: 14px;
  }

  .kit-card {
    padding: 20px;
  }

  .flow-step {
    grid-template-columns: 40px 1fr;
    gap: 14px;
    padding: 18px;
  }

  .flow-num {
    width: 40px;
    height: 40px;
    font-size: 1rem;
  }

  .flow-connector {
    margin-left: 39px;
    height: 18px;
  }

  .stories-section {
    margin-top: 64px;
  }

  .stories-grid {
    gap: 14px;
  }

  .story-card {
    padding: 22px;
  }

  .demo-grid {
    margin-top: 32px;
    gap: 20px;
  }

  .demo-card {
    max-width: 100%;
  }

  .demo-visual {
    height: auto;
    min-height: 140px;
    padding: 20px 16px;
  }

  .mock-flow {
    flex-wrap: wrap;
    justify-content: center;
    gap: 6px;
  }

  .mock-step {
    padding: 6px 10px;
    font-size: 0.78rem;
  }

  .mock-arrow {
    display: none;
  }

  .mock-vault {
    gap: 24px;
  }

  .demo-info {
    padding: 20px;
  }

  .demo-header {
    gap: 10px;
  }

  .demo-icon {
    width: 36px;
    height: 36px;
    font-size: 1rem;
  }

  .demo-info h3 {
    font-size: 1.1rem;
  }

  .cta {
    margin-top: 64px;
    padding: 24px;
    flex-direction: column;
    align-items: flex-start;
    gap: 20px;
  }

  .cta-content h2 {
    font-size: 1.3rem;
  }

  .cta-actions {
    flex-direction: column;
    width: 100%;
  }

  .cta-actions .btn-primary,
  .cta-actions .btn-outline {
    width: 100%;
    text-align: center;
  }

  .footer {
    margin-top: 56px;
    flex-direction: column;
    gap: 14px;
  }
}

@media (max-width: 480px) {
  .page {
    padding: 16px 16px 28px;
  }

  .nav {
    gap: 14px;
  }

  .logo {
    font-size: 0.95rem;
  }

  .logo-glyph {
    font-size: 1.1rem;
  }

  .logo-tag {
    font-size: 0.65rem;
    padding: 2px 6px;
  }

  .nav-links {
    gap: 10px 16px;
    font-size: 0.85rem;
  }

  .nav-cta {
    padding: 10px 16px;
    font-size: 0.85rem;
  }

  .hero {
    margin-top: 28px;
  }

  .hero-badge {
    font-size: 0.7rem;
    padding: 5px 12px;
  }

  .hero h1 {
    font-size: 1.7rem;
  }

  .hero-sub {
    font-size: 0.95rem;
  }

  .btn-primary,
  .btn-outline {
    padding: 12px 20px;
    font-size: 0.9rem;
  }

  .credential-card {
    padding: 16px;
  }

  .credential-header {
    font-size: 0.9rem;
  }

  .credential-row {
    font-size: 0.85rem;
  }

  .section {
    margin-top: 52px;
  }

  .section-label {
    font-size: 0.68rem;
  }

  .section-intro h2 {
    font-size: 1.35rem;
  }

  .section-desc {
    font-size: 0.95rem;
  }

  .pain-card,
  .kit-card,
  .story-card {
    padding: 18px;
  }

  .pain-icon {
    font-size: 1.4rem;
  }

  .pain-card h3,
  .kit-card h3,
  .story-card h3 {
    font-size: 1rem;
  }

  .pain-card p,
  .kit-card > p,
  .story-card p {
    font-size: 0.9rem;
  }

  .kit-api {
    padding: 8px 12px;
    font-size: 0.75rem;
  }

  .flow-step {
    padding: 16px;
  }

  .flow-content h4 {
    font-size: 1rem;
  }

  .flow-content p {
    font-size: 0.9rem;
  }

  .demo-visual {
    min-height: 120px;
    padding: 16px 12px;
  }

  .mock-badge {
    font-size: 0.68rem;
    padding: 5px 12px;
  }

  .mock-step {
    padding: 5px 8px;
    font-size: 0.72rem;
  }

  .stat-label {
    font-size: 0.68rem;
  }

  .stat-value {
    font-size: 1.2rem;
  }

  .demo-info {
    padding: 16px;
  }

  .demo-info p {
    font-size: 0.88rem;
  }

  .demo-cta {
    font-size: 0.88rem;
  }

  .cta {
    padding: 20px;
  }

  .cta-content h2 {
    font-size: 1.15rem;
  }

  .cta-content p {
    font-size: 0.9rem;
  }

  .footer p {
    font-size: 0.82rem;
  }
}