:root {
  color-scheme: light;
  --ink: #27231f;
  --muted: #6f6861;
  --paper: #fffdf9;
  --canvas: #f4f0e9;
  --line: #ded6ca;
  --accent: #8a6540;
  --accent-dark: #66472c;
  --accent-soft: #efe2d2;
  --shadow: 0 24px 70px rgba(49, 40, 31, 0.12);
  --radius-lg: 24px;
  --radius-md: 14px;
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--canvas);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 12% 10%, rgba(255, 255, 255, 0.9), transparent 30rem),
    var(--canvas);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.72rem;
}

.brand-link {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  width: 2.5rem;
  height: 2.5rem;
  place-items: center;
  border: 1px solid rgba(138, 101, 64, 0.5);
  border-radius: 50%;
  color: var(--accent-dark);
  background: rgba(255, 253, 249, 0.72);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.3rem;
  font-style: italic;
}

.brand-name {
  font-size: 0.82rem;
  font-weight: 750;
  letter-spacing: 0.2em;
}

.eyebrow {
  display: inline-block;
  color: var(--accent-dark);
  font-size: 0.72rem;
  font-weight: 750;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.home-shell {
  width: min(1120px, calc(100% - 2rem));
  margin: 0 auto;
  padding: clamp(2rem, 7vw, 6rem) 0 2rem;
}

.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(2rem, 7vw, 5.5rem);
  border: 1px solid rgba(138, 101, 64, 0.2);
  border-radius: 32px;
  background: rgba(255, 253, 249, 0.88);
  box-shadow: var(--shadow);
}

.hero::after {
  position: absolute;
  top: -7rem;
  right: -7rem;
  width: 20rem;
  height: 20rem;
  border: 1px solid rgba(138, 101, 64, 0.16);
  border-radius: 50%;
  box-shadow: 0 0 0 3rem rgba(138, 101, 64, 0.035), 0 0 0 6rem rgba(138, 101, 64, 0.025);
  content: "";
  pointer-events: none;
}

.hero .eyebrow {
  margin-top: clamp(3rem, 8vw, 7rem);
}

.hero h1,
.viewer-intro h1 {
  max-width: 850px;
  margin: 0.6rem 0 1.2rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: clamp(2.6rem, 7vw, 5.6rem);
  font-weight: 400;
  letter-spacing: -0.045em;
  line-height: 0.98;
}

.hero-copy {
  max-width: 630px;
  margin: 0;
  color: var(--muted);
  font-size: clamp(1rem, 2vw, 1.24rem);
}

.home-note {
  display: flex;
  max-width: 680px;
  align-items: flex-start;
  gap: 1rem;
  margin-top: 2.6rem;
  padding: 1.1rem 1.25rem;
  border-left: 3px solid var(--accent);
  background: var(--accent-soft);
}

.home-note p {
  margin: 0;
}

.home-note-icon {
  color: var(--accent-dark);
  font-size: 1.25rem;
  font-weight: 700;
}

.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  overflow: hidden;
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--line);
}

.principles article {
  padding: 2rem;
  background: rgba(255, 253, 249, 0.8);
}

.principle-number {
  color: var(--accent);
  font-size: 0.68rem;
  font-weight: 800;
  letter-spacing: 0.14em;
}

.principles h2 {
  margin: 0.65rem 0 0.3rem;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 1.5rem;
  font-weight: 400;
}

.principles p {
  margin: 0;
  color: var(--muted);
  font-size: 0.93rem;
}

.site-footer,
.viewer-footer {
  display: flex;
  justify-content: center;
  gap: 0.65rem;
  padding: 2rem 1rem 3rem;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

.viewer-header {
  display: flex;
  width: min(1180px, calc(100% - 2rem));
  align-items: center;
  justify-content: space-between;
  margin: 0 auto;
  padding: 1.25rem 0;
}

.viewer-header p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
}

.viewer-shell {
  width: min(1180px, calc(100% - 2rem));
  margin: 0 auto;
}

.viewer-intro {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
  gap: 2rem;
  padding: clamp(2rem, 5vw, 4rem);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  background: var(--paper);
}

.viewer-intro h1 {
  margin-bottom: 0.65rem;
  font-size: clamp(2.3rem, 6vw, 4.5rem);
}

.viewer-intro p {
  max-width: 570px;
  margin: 0;
  color: var(--muted);
}

.viewer-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.75rem;
}

.button {
  display: inline-flex;
  min-height: 3rem;
  align-items: center;
  justify-content: center;
  padding: 0.75rem 1.15rem;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
  text-align: center;
  text-decoration: none;
  transition: transform 160ms ease, background-color 160ms ease, border-color 160ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button:focus-visible,
.brand-link:focus-visible {
  outline: 3px solid rgba(138, 101, 64, 0.34);
  outline-offset: 3px;
}

.button-primary {
  color: #fff;
  background: var(--accent-dark);
}

.button-primary:hover {
  background: #4f351f;
}

.button-secondary {
  border-color: var(--line);
  background: transparent;
}

.button-secondary:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
}

.document-card {
  overflow: hidden;
  border: 1px solid var(--line);
  border-top: 0;
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  background: #d9d5cf;
  box-shadow: var(--shadow);
}

.document-toolbar {
  display: flex;
  min-height: 2.8rem;
  align-items: center;
  gap: 0.45rem;
  padding: 0 1rem;
  border-bottom: 1px solid #d8d0c5;
  background: #f5f1eb;
}

.document-toolbar span {
  width: 0.58rem;
  height: 0.58rem;
  border-radius: 50%;
  background: #c9bfb3;
}

.document-toolbar strong {
  margin-left: 0.35rem;
  color: var(--muted);
  font-size: 0.72rem;
  font-weight: 650;
}

.pdf-viewer {
  display: block;
  width: 100%;
  height: min(72vh, 900px);
  min-height: 560px;
  border: 0;
  background: #d9d5cf;
}

.pdf-fallback {
  display: grid;
  min-height: 480px;
  place-content: center;
  justify-items: center;
  gap: 1rem;
  padding: 2rem;
  text-align: center;
}

.pdf-fallback p {
  margin: 0;
}

.mobile-hint {
  margin: 1rem 0 0;
  color: var(--muted);
  font-size: 0.78rem;
  text-align: center;
}

.viewer-footer {
  flex-direction: column;
  gap: 0.2rem;
}

.viewer-footer span:first-child {
  color: var(--ink);
  font-weight: 750;
  letter-spacing: 0.16em;
}

@media (max-width: 820px) {
  .principles {
    grid-template-columns: 1fr;
  }

  .viewer-intro {
    grid-template-columns: 1fr;
    align-items: start;
  }

  .viewer-actions {
    justify-content: flex-start;
  }
}

@media (max-width: 560px) {
  .home-shell,
  .viewer-shell,
  .viewer-header {
    width: min(100% - 1rem, 1180px);
  }

  .home-shell {
    padding-top: 0.5rem;
  }

  .hero {
    padding: 1.4rem;
    border-radius: 22px;
  }

  .hero::after {
    opacity: 0.55;
  }

  .hero .eyebrow {
    margin-top: 4rem;
  }

  .hero h1 {
    font-size: clamp(2.35rem, 13vw, 3.6rem);
  }

  .home-note {
    padding: 1rem;
  }

  .principles {
    border-radius: 18px;
  }

  .principles article {
    padding: 1.4rem;
  }

  .viewer-header p {
    display: none;
  }

  .viewer-intro {
    gap: 1.4rem;
    padding: 1.4rem;
    border-radius: 18px 18px 0 0;
  }

  .viewer-actions {
    display: grid;
    width: 100%;
    grid-template-columns: 1fr;
  }

  .button {
    width: 100%;
  }

  .document-card {
    border-radius: 0 0 18px 18px;
  }

  .pdf-viewer {
    height: 60vh;
    min-height: 420px;
  }

  .site-footer {
    flex-direction: column;
    gap: 0.15rem;
  }

  .site-footer span[aria-hidden="true"] {
    display: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }
}