:root {
  color-scheme: dark;
  --bg: #0b0f14;
  --bg-soft: #10161f;
  --card: #141c28;
  --border: #243044;
  --text: #f2f5f8;
  --muted: #b1bfd1;
  --primary: #86f3df;
  --accent: #7cebb1;
  --danger: #ff7b7b;
  --shadow: 0 20px 60px rgba(6, 12, 22, 0.45);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Spline Sans", system-ui, sans-serif;
  background: radial-gradient(circle at top, rgba(77, 214, 183, 0.08), transparent 45%),
    var(--bg);
  color: var(--text);
  line-height: 1.6;
}

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

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

.container {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 0 24px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: rgba(11, 15, 20, 0.8);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(36, 48, 68, 0.7);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0;
  gap: 24px;
}

.logo {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.5px;
}

.site-header .logo {
  height: 120px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.site-header .logo img {
  height: 300px;
  width: auto;
  display: block;
  object-fit: cover;
  object-position: center;
}

.site-footer .logo img {
  height: 28px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
}

.site-nav a {
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--muted);
  transition: color 0.2s ease;
}

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

.menu-toggle {
  display: none;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  background: linear-gradient(120deg, #7cebb1, #86f3df);
  color: #041019;
  border: none;
  box-shadow: var(--shadow);
}

.btn.small {
  padding: 8px 16px;
  font-size: 0.9rem;
}

.site-nav .btn {
  color: #0b0f14;
}

.btn.ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: none;
}

.hero {
  position: relative;
  min-height: 88vh;
  display: flex;
  align-items: center;
  padding: 120px 0 90px;
  overflow: hidden;
}

.page-hero {
  position: relative;
  padding: 120px 0 80px;
  background: linear-gradient(135deg, rgba(77, 214, 183, 0.12), rgba(16, 22, 31, 0.95));
}

.page-hero h1 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(2.2rem, 3.5vw, 3.4rem);
  margin: 16px 0;
}

.grid-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 15, 20, 0.7), rgba(11, 15, 20, 0.98));
  z-index: 0;
}

.grid-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(77, 214, 183, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(77, 214, 183, 0.08) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  z-index: 1;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 32px;
  align-items: center;
}

.hero-visual {
  display: flex;
  justify-content: flex-end;
  position: relative;
}

.hero-visual img {
  width: min(720px, 160%);
  max-width: 160%;
  opacity: 0.6;
  filter: drop-shadow(0 30px 60px rgba(5, 12, 20, 0.45));
  transform: translateX(10%);
  mix-blend-mode: screen;
}

.hero h1 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(2.5rem, 4vw, 4.5rem);
  margin: 20px 0;
  line-height: 1.1;
}

.lead {
  max-width: 640px;
  font-size: 1.15rem;
  color: var(--muted);
}

.pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 999px;
  border: 1px solid rgba(77, 214, 183, 0.3);
  background: rgba(20, 28, 40, 0.8);
  color: var(--primary);
  font-weight: 600;
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.pill.warning {
  color: var(--danger);
  border-color: rgba(255, 123, 123, 0.4);
}

.section {
  padding: 90px 0;
}

.section.alt {
  background: var(--bg-soft);
}

.section-header {
  max-width: 720px;
  margin-bottom: 40px;
}

.section-header h2 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  font-size: clamp(2rem, 3.2vw, 3rem);
  margin: 16px 0;
}

.section-header p {
  color: var(--muted);
  font-size: 1.05rem;
}

.cards {
  display: grid;
  gap: 20px;
}

.cards.two {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cards.three {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.cards.four {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  box-shadow: var(--shadow);
}

.card-actions {
  display: flex;
  justify-content: flex-end;
  margin-top: 16px;
}

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

.card h3 {
  font-family: "Space Grotesk", system-ui, sans-serif;
  margin: 0 0 10px;
}

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

.card ul {
  margin: 10px 0 0;
  padding-left: 18px;
  color: var(--muted);
}

.callout {
  margin-top: 32px;
  padding: 24px;
  border-radius: 16px;
  border: 1px dashed var(--border);
  background: rgba(20, 28, 40, 0.6);
}

.callout .big {
  font-size: 1.3rem;
  margin: 0 0 6px;
}

.quote-block {
  margin-top: 32px;
  padding: 24px 24px 20px;
  border-radius: 18px;
  border-left: 4px solid var(--primary);
  background: rgba(20, 28, 40, 0.45);
}

.quote-block p {
  margin: 0 0 16px;
  font-size: 1.15rem;
  color: var(--text);
}

.quote-sources {
  display: grid;
  gap: 10px;
}

.quote-sources div {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.quote-sources a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.small {
  font-size: 0.9rem;
}

.architecture {
  display: grid;
  gap: 18px;
  margin-bottom: 28px;
}

.arch-split {
  display: grid;
  grid-template-columns: minmax(0, 0.75fr) minmax(0, 1.25fr);
  gap: 28px;
  align-items: center;
}

.arch-image img {
  width: 100%;
  max-width: none;
  border-radius: 12px;
  border: 1px solid rgba(36, 48, 68, 0.5);
  box-shadow: 0 18px 40px rgba(6, 12, 22, 0.35);
}

@media (max-width: 900px) {
  .arch-split {
    grid-template-columns: 1fr;
  }
}

.ev-split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 28px;
  align-items: center;
}

.ev-visual {
  border-radius: 16px;
  border: 1px solid rgba(36, 48, 68, 0.5);
  background: rgba(20, 28, 40, 0.35);
  padding: 14px;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px rgba(6, 12, 22, 0.25);
}

.ev-visual img {
  width: min(360px, 90%);
}

@media (max-width: 900px) {
  .ev-split {
    grid-template-columns: 1fr;
  }
}

.use-case-tab {
  border: 1px solid var(--border);
  background: rgba(20, 28, 40, 0.5);
  color: var(--text);
  padding: 8px 14px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
}

.use-case-tab.is-active {
  border-color: rgba(124, 235, 177, 0.6);
  box-shadow: 0 0 0 1px rgba(134, 243, 223, 0.35) inset;
  color: #0b0f14;
  background: linear-gradient(120deg, #7cebb1, #86f3df);
}

.applied-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 20px;
  position: relative;
  z-index: 2;
}

.applied-panels {
  display: grid;
  gap: 20px;
  position: relative;
  z-index: 1;
}

.applied-panel {
  display: none;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 24px;
  box-shadow: var(--shadow);
}

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

.applied-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.applied-tag {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(124, 235, 177, 0.6);
  color: #0b0f14;
  background: linear-gradient(120deg, #7cebb1, #86f3df);
  font-size: 0.8rem;
  font-weight: 600;
}

.applied-placeholder {
  width: 100%;
  height: 200px;
  border-radius: 12px;
  border: 1px dashed rgba(124, 235, 177, 0.5);
  color: var(--muted);
  display: grid;
  place-items: center;
  font-size: 0.9rem;
}
@media (max-width: 700px) {
  .site-header .logo {
    height: 90px;
  }

  .site-header .logo img {
    height: 220px;
  }

  .site-nav {
    right: 16px;
  }

  .hero-visual img {
    width: min(520px, 140%);
    max-width: 140%;
    transform: translateX(6%);
  }
}

.arch-layer {
  padding: 20px 24px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: linear-gradient(135deg, rgba(20, 28, 40, 0.9), rgba(20, 28, 40, 0.5));
}

.arch-label {
  display: inline-block;
  font-weight: 600;
  margin-bottom: 8px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.badge {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(20, 28, 40, 0.75);
  font-size: 0.85rem;
  color: var(--muted);
}

.figure-card {
  margin-top: 28px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: var(--card);
  padding: 18px;
  box-shadow: var(--shadow);
}

.visual-card {
  margin-top: 28px;
  border-radius: 16px;
  border: 1px solid rgba(36, 48, 68, 0.5);
  background: rgba(20, 28, 40, 0.35);
  padding: 14px;
  display: grid;
  place-items: center;
  box-shadow: 0 12px 30px rgba(6, 12, 22, 0.25);
}

.visual-card img {
  width: min(560px, 100%);
}

.visual-card svg {
  width: min(560px, 100%);
  height: auto;
  color: var(--primary);
}

.figure-card img {
  border-radius: 12px;
  border: 1px solid rgba(36, 48, 68, 0.6);
}

.figure-card figcaption {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.95rem;
}

.timeline {
  display: grid;
  gap: 18px;
}

.timeline-item {
  padding: 22px 24px;
  border-radius: 16px;
  border-left: 4px solid var(--accent);
  background: var(--card);
}

.avatar {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(77, 214, 183, 0.2);
  display: grid;
  place-items: center;
  font-weight: 700;
  margin: 0 auto 12px;
  color: var(--primary);
}

.contact {
  background: radial-gradient(circle at left, rgba(255, 180, 84, 0.08), transparent 55%),
    var(--bg);
}

.contact-grid {
  display: grid;
  gap: 24px;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  align-items: center;
}

.contact-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  text-align: center;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin: 28px 0;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  gap: 18px;
  margin-top: 24px;
}

.stat {
  font-size: 1.1rem;
  font-weight: 700;
}

.stat-label {
  display: block;
  color: var(--muted);
  font-size: 0.9rem;
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 32px 0 40px;
  background: #0a0e13;
  width: 100%;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  align-items: center;
}

.footer-col {
  display: grid;
  gap: 2px;
  font-size: 0.9rem;
  color: var(--muted);
}

.footer-col p {
  margin: 0;
  line-height: 1.35;
}

.footer-logo {
  height: 42px;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.footer-logo img {
  height: 95px;
  width: auto;
  display: block;
}

.footer-mark {
  margin-right: 16px;
}

.footer-mark img {
  height: 90px;
  width: auto;
  display: block;
}

@media (min-width: 1000px) {
  .site-footer .container {
    width: 100%;
    max-width: none;
  }

  .footer-inner {
    display: grid;
    grid-template-columns: 20% 15% 15% 30% 20%;
    align-items: start;
    gap: 16px;
  }

  .footer-mark {
    margin-right: 0;
  }
}

.footer-col a {
  color: var(--muted);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-title {
  text-transform: uppercase;
  letter-spacing: 1px;
  font-size: 0.75rem;
  color: var(--text);
  margin-bottom: 4px;
}

.footer-bottom {
  gap: 12px;
}


.footer-links {
  display: flex;
  gap: 16px;
  color: var(--muted);
}

@media (max-width: 900px) {
  .site-nav {
    position: absolute;
    top: 64px;
    right: 24px;
    flex-direction: column;
    background: rgba(11, 15, 20, 0.98);
    border: 1px solid var(--border);
    padding: 16px;
    border-radius: 16px;
    min-width: 200px;
    display: none;
  }

  .site-nav[data-open="true"] {
    display: flex;
  }

  .menu-toggle {
    display: inline-flex;
  }
}

@media (max-width: 600px) {
  .hero {
    padding-top: 110px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
  }

  .btn {
    width: 100%;
  }
}