:root {
  --bg: #1f2e3d;
  --bg-soft: #263a4d;
  --accent: #73c7db;
  --accent2: #59b89e;
  --text: #f0f5fa;
  --muted: #c7dae6;
  --rail: 72px;
  --max: 1080px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: "SF Pro Text", "Segoe UI", system-ui, sans-serif;
  background: radial-gradient(circle at 20% 0%, #2a4560 0%, var(--bg) 45%, #152028 100%);
  color: var(--text);
  line-height: 1.55;
}

.rail {
  position: fixed;
  left: 0;
  top: 0;
  bottom: 0;
  width: var(--rail);
  background: rgba(15, 24, 32, 0.92);
  border-right: 1px solid rgba(115, 199, 219, 0.18);
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 18px 0;
  z-index: 20;
}

.rail__brand {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  color: var(--bg);
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  margin-bottom: 24px;
}

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

.rail__tab {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  color: var(--muted);
  text-decoration: none;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.rail__tab span { font-size: 1.05rem; }
.rail__tab.is-active,
.rail__tab:hover {
  color: var(--text);
  border-color: rgba(115, 199, 219, 0.35);
  background: rgba(115, 199, 219, 0.12);
}

.canvas {
  margin-left: var(--rail);
  padding: 0 24px 48px;
}

.hero {
  min-height: 88vh;
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 32px;
  align-items: center;
  max-width: var(--max);
  margin: 0 auto;
  padding: 64px 0 48px;
}

.hero__copy h1 {
  font-size: clamp(2.4rem, 5vw, 4rem);
  line-height: 1.05;
  margin: 0 0 16px;
  letter-spacing: -0.02em;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-size: 0.78rem;
  color: var(--accent);
  margin: 0 0 12px;
}

.tagline {
  font-size: 1.15rem;
  color: var(--muted);
  max-width: 34ch;
}

.collage__stack {
  position: relative;
  min-height: 420px;
}

.collage__base,
.collage__layer {
  position: absolute;
  border-radius: 18px;
  object-fit: cover;
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
}

.collage__base {
  inset: 8% 0 0 6%;
  width: 88%;
  height: 78%;
}

.collage__layer--a {
  width: 42%;
  height: 42%;
  top: -2%;
  right: 0;
  border: 3px solid rgba(115, 199, 219, 0.35);
}

.collage__layer--b {
  width: 38%;
  height: 38%;
  bottom: 0;
  left: -2%;
  border: 3px solid rgba(89, 184, 158, 0.35);
}

.section {
  max-width: var(--max);
  margin: 0 auto 72px;
}

.section__intro {
  max-width: 520px;
  margin-bottom: 28px;
}

.section__intro--right { margin-left: auto; text-align: right; }
.section__intro h2 { margin: 0 0 8px; font-size: 1.8rem; }
.section__intro p { margin: 0; color: var(--muted); }

.icon-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.icon-grid__item {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(115, 199, 219, 0.14);
  border-radius: 16px;
  padding: 20px;
}

.icon-grid__glyph {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: rgba(115, 199, 219, 0.16);
  color: var(--accent);
  margin-bottom: 12px;
  font-size: 1.1rem;
}

.icon-grid__item h3 { margin: 0 0 8px; font-size: 1.05rem; }
.icon-grid__item p { margin: 0; color: var(--muted); font-size: 0.95rem; }

.carousel {
  position: relative;
  display: grid;
  grid-template-columns: auto 1fr auto;
  gap: 12px;
  align-items: center;
}

.carousel__track {
  display: flex;
  gap: 16px;
  overflow: hidden;
  padding: 8px 0;
}

.carousel__slide {
  min-width: min(320px, 78vw);
  margin: 0;
  transform: scale(0.94);
  opacity: 0.55;
  transition: 0.25s ease;
}

.carousel__slide.is-active {
  transform: scale(1);
  opacity: 1;
}

.carousel__slide img {
  width: 100%;
  border-radius: 22px;
  border: 1px solid rgba(115, 199, 219, 0.22);
  display: block;
}

.carousel__slide figcaption {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  margin-top: 10px;
}

.carousel__btn {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid rgba(115, 199, 219, 0.35);
  background: rgba(15, 24, 32, 0.7);
  color: var(--text);
  font-size: 1.6rem;
  cursor: pointer;
}

.legal-tabs__bar {
  display: inline-flex;
  gap: 8px;
  margin-bottom: 18px;
  background: rgba(255, 255, 255, 0.04);
  padding: 6px;
  border-radius: 999px;
}

.legal-tabs__btn {
  border: 0;
  background: transparent;
  color: var(--muted);
  padding: 10px 18px;
  border-radius: 999px;
  cursor: pointer;
  font: inherit;
}

.legal-tabs__btn.is-active {
  background: rgba(115, 199, 219, 0.18);
  color: var(--text);
}

.legal-tabs__panel {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid rgba(115, 199, 219, 0.12);
  border-radius: 16px;
  padding: 24px;
}

.legal-tabs__panel h3 { margin-top: 0; }
.legal-tabs__panel a { color: var(--accent); }

.site-footer {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 24px;
  border-top: 1px solid rgba(115, 199, 219, 0.12);
  color: var(--muted);
  font-size: 0.9rem;
}

@media (max-width: 900px) {
  .hero { grid-template-columns: 1fr; min-height: auto; padding-top: 40px; }
  .collage__stack { min-height: 320px; }
  .icon-grid { grid-template-columns: 1fr 1fr; }
  .section__intro--right { margin-left: 0; text-align: left; }
}

@media (max-width: 640px) {
  :root { --rail: 56px; }
  .canvas { padding: 0 16px 40px; }
  .icon-grid { grid-template-columns: 1fr; }
  .carousel__slide { min-width: 86vw; }
}