:root {
  color-scheme: light;
  --navy: #102a43;
  --navy-2: #193f64;
  --blue: #245d8c;
  --green: #0b725b;
  --green-dark: #095845;
  --gold: #d9ad39;
  --bg: #f3f6f8;
  --surface: #ffffff;
  --line: #d7e0e7;
  --text: #203547;
  --muted: #617386;
  --focus: #ffbf47;
  --shadow: 0 12px 30px rgba(16, 42, 67, .08);
}

* { box-sizing: border-box; }
html { font-family: Arial, Helvetica, sans-serif; background: var(--bg); color: var(--text); }
body { margin: 0; min-height: 100vh; background: var(--bg); }
a { color: inherit; }
.skip-link { position: absolute; left: -9999px; top: auto; }
.skip-link:focus { left: 1rem; top: 1rem; z-index: 20; padding: .7rem 1rem; background: #fff; outline: 3px solid var(--focus); }

.site-header { background: var(--surface); border-top: 3px solid var(--gold); border-bottom: 1px solid var(--line); }
.header-inner { max-width: 1180px; margin: 0 auto; padding: 1.4rem 1.25rem; display: flex; align-items: center; justify-content: space-between; gap: 1.5rem; }
.identity { display: flex; align-items: center; gap: 1rem; }
.mark { width: 58px; height: 58px; border-radius: 50%; display: grid; place-items: center; background: var(--navy); color: white; font-weight: 700; font-size: .95rem; letter-spacing: .02em; }
.university, .subtitle { margin: 0; color: var(--muted); }
.university { font-size: .86rem; margin-bottom: .18rem; }
.site-header h1 { margin: 0; color: var(--navy); font-size: clamp(1.35rem, 2.5vw, 2rem); }
.subtitle { margin-top: .2rem; font-size: .95rem; }
.back-link { text-decoration: none; color: var(--navy-2); font-weight: 700; border: 1px solid var(--line); border-radius: .55rem; padding: .7rem .9rem; background: #fff; }
.back-link:hover, .back-link:focus-visible { border-color: var(--blue); outline: none; box-shadow: 0 0 0 3px rgba(36,93,140,.16); }

.main-content { max-width: 1180px; margin: 0 auto; padding: 2.2rem 1.25rem 3rem; }
.intro { max-width: 760px; margin-bottom: 1.8rem; }
.eyebrow { margin: 0 0 .35rem; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; font-weight: 700; color: var(--blue); }
.intro h2 { margin: 0 0 .65rem; color: var(--navy); font-size: clamp(1.7rem, 4vw, 2.5rem); }
.intro p:last-child { margin: 0; line-height: 1.65; color: var(--muted); }

.manual-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1.4rem; }
.manual-card { min-height: 100%; background: var(--surface); border: 1px solid var(--line); border-radius: 1rem; overflow: hidden; box-shadow: var(--shadow); display: grid; grid-template-columns: 130px 1fr; }
.card-badge { color: white; display: flex; align-items: center; justify-content: center; font-weight: 800; font-size: 1.4rem; writing-mode: vertical-rl; transform: rotate(180deg); letter-spacing: .12em; }
.sics-card .card-badge { background: var(--navy-2); }
.siprec-card .card-badge { background: var(--green); }
.card-content { padding: 1.5rem; }
.system-type { margin: 0 0 .3rem; color: var(--muted); font-size: .82rem; text-transform: uppercase; letter-spacing: .05em; font-weight: 700; }
.card-content h3 { margin: 0; color: var(--navy); font-size: 2rem; }
.siprec-card .card-content h3 { color: var(--green-dark); }
.full-name { margin: .2rem 0 .8rem; font-weight: 700; }
.description { margin: 0; line-height: 1.58; color: #42576a; }
.metadata { display: grid; grid-template-columns: repeat(3, 1fr); gap: .65rem; margin: 1.15rem 0; }
.metadata div { border-top: 1px solid var(--line); padding-top: .6rem; }
.metadata dt { color: var(--muted); font-size: .75rem; }
.metadata dd { margin: .16rem 0 0; font-weight: 700; font-size: .9rem; }
.actions { display: flex; flex-wrap: wrap; gap: .65rem; }
.button { display: inline-flex; align-items: center; justify-content: center; min-height: 42px; padding: .65rem .9rem; border-radius: .55rem; text-decoration: none; font-weight: 700; border: 1px solid transparent; }
.button.primary { background: var(--navy-2); color: white; }
.siprec-card .button.primary { background: var(--green); }
.button.secondary { background: white; border-color: #bfcdd8; color: var(--navy); }
.button:hover { filter: brightness(.96); }
.button:focus-visible { outline: 3px solid var(--focus); outline-offset: 2px; }

.notice { margin-top: 1.6rem; padding: 1.15rem 1.25rem; background: #fff; border: 1px solid var(--line); border-left: 4px solid var(--gold); border-radius: .75rem; }
.notice h2 { margin: 0 0 .4rem; font-size: 1.05rem; color: var(--navy); }
.notice p { margin: 0; line-height: 1.55; color: var(--muted); }
.site-footer { border-top: 1px solid var(--line); background: #fff; color: var(--muted); text-align: center; padding: 1.2rem; font-size: .85rem; }

@media (max-width: 850px) {
  .header-inner { align-items: flex-start; flex-direction: column; }
  .manual-grid { grid-template-columns: 1fr; }
}
@media (max-width: 560px) {
  .manual-card { grid-template-columns: 1fr; }
  .card-badge { writing-mode: horizontal-tb; transform: none; padding: .65rem; }
  .metadata { grid-template-columns: 1fr; }
  .actions { flex-direction: column; }
  .button { width: 100%; }
}
@media print {
  .back-link, .actions { display: none; }
  body { background: white; }
  .manual-card { box-shadow: none; break-inside: avoid; }
}