:root {
  --bg: #eef5ff;
  --paper: #f8fbff;
  --line: #c8d7ee;
  --text: #07111f;
  --muted: #5d718b;
  --blue: #205cff;
  --blue-soft: #dfe9ff;
  --display: "Neue Haas Grotesk Display Pro", "Suisse Int'l", "Space Grotesk", "Segoe UI", sans-serif;
  --body: "Suisse Int'l", "Inter", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

html,
body {
  margin: 0;
  min-height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: var(--body);
}

body {
  overflow-x: hidden;
}

img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

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

#app {
  min-height: 100vh;
}

.system-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 160px minmax(0, 1fr);
}

.rail {
  position: sticky;
  top: 0;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  padding: 20px 18px;
  border-right: 1px solid var(--line);
  background: rgba(248, 251, 255, 0.82);
  backdrop-filter: blur(8px);
}

.rail-top {
  display: grid;
  gap: 14px;
}

.monogram {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  border: 1px solid var(--line);
  color: var(--blue);
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: 0.08em;
}

.rail-name {
  font-size: 0.82rem;
  font-weight: 700;
  line-height: 1.3;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.rail-nav {
  display: grid;
  align-content: center;
  gap: 14px;
}

.rail-nav a {
  color: var(--muted);
  font-size: 0.88rem;
}

.rail-nav a:hover {
  color: var(--blue);
}

.rail-bottom {
  display: grid;
  gap: 8px;
  color: var(--muted);
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.canvas {
  padding: 24px 32px 40px;
}

.intro,
.statement-block,
.case,
.footer-block {
  border-top: 1px solid var(--line);
}

.intro {
  min-height: 86vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px 0;
}

.intro-label,
.footer-label,
.case-meta {
  color: var(--blue);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.intro h1 {
  margin: 18px 0 0;
  font-family: var(--display);
  font-size: clamp(4.2rem, 12vw, 12rem);
  line-height: 0.82;
  letter-spacing: -0.09em;
  font-weight: 700;
}

.intro h1 span {
  display: block;
  color: transparent;
  -webkit-text-stroke: 1px var(--blue);
}

.intro-copy {
  margin: 22px 0 0;
  max-width: 24ch;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.7;
}

.statement-block {
  padding: 46px 0;
}

.statement-block p {
  margin: 0;
  max-width: 14ch;
  font-family: var(--display);
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.cases {
  display: grid;
}

.case {
  display: grid;
  grid-template-columns: 120px minmax(0, 1fr) 300px;
  gap: 28px;
  align-items: start;
  padding: 32px 0;
}

.case-index {
  color: var(--blue);
  font-family: var(--display);
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 0.9;
  letter-spacing: -0.08em;
}

.case-body {
  min-width: 0;
}

.case-meta {
  display: flex;
  justify-content: space-between;
  gap: 14px;
}

.case h2 {
  margin: 12px 0 10px;
  font-family: var(--display);
  font-size: clamp(2rem, 4vw, 4rem);
  line-height: 0.9;
  letter-spacing: -0.07em;
  font-weight: 700;
}

.case p {
  margin: 0;
  max-width: 34ch;
  color: var(--muted);
  line-height: 1.7;
}

.case-image {
  aspect-ratio: 0.84;
  background: var(--paper);
  border: 1px solid var(--line);
  overflow: hidden;
}

.footer-block {
  min-height: 56vh;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 40px 0;
}

.footer-link {
  margin-top: 18px;
  font-family: var(--display);
  font-size: clamp(2rem, 6vw, 5rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.footer-sub {
  margin-top: 14px;
  color: var(--muted);
  font-size: 1rem;
}

@media (max-width: 980px) {
  .system-shell {
    grid-template-columns: 1fr;
  }

  .rail {
    position: static;
    height: auto;
    grid-template-rows: auto auto auto;
    gap: 20px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .rail-nav,
  .rail-bottom {
    align-content: start;
  }

  .canvas {
    padding: 18px;
  }

  .case {
    grid-template-columns: 1fr;
    gap: 16px;
  }

  .case-image {
    max-width: 360px;
  }
}

@media (max-width: 640px) {
  .intro {
    min-height: auto;
    padding: 48px 0 28px;
  }

  .intro h1,
  .statement-block p,
  .footer-link {
    max-width: none;
  }

  .statement-block {
    padding: 34px 0;
  }
}