/* Design-Tokens 1:1 aus dem FSINF-Homepage-Repo uebernommen (src/app/globals.css),
   fuer visuelle Konsistenz mit nak-inf.de. Nur das hier Gebrauchte kopiert. */
:root {
  --fs-navy: #003a79;
  --fs-navy-deep: #002554;
  --fs-cyan: #3cd2ff;
  --fs-cyan-bright: #00bfff;

  --fs-white: #ffffff;
  --fs-mist: #ced8e3;
  --fs-steel: #8a99ad;
  --fs-slate: #4a5a72;

  --fs-success: #1f9d55;

  --fg-1: #e8edf5;
  --fg-2: #a8b8cc;
  --fg-3: #6a7d94;
  --fg-accent: var(--fs-cyan-bright);

  --bg-1: #0d1520;
  --bg-2: #0a0f17;
  --bg-3: #111b2b;

  --border-1: #1e2d42;
  --border-2: #162033;

  --font-display: "Saira", "Helvetica Neue", Arial, sans-serif;
  --font-sans: "Space Grotesk", "Inter", system-ui, -apple-system, sans-serif;
  --font-mono: "Space Mono", "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;

  --radius-sm: 4px;
  --radius-md: 8px;

  --shadow-focus: 0 0 0 3px rgba(60, 210, 255, 0.55);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  background: var(--bg-2);
  color: var(--fg-1);
  font-family: var(--font-sans);
  line-height: 1.5;
}

h1, h2, h3 { font-family: var(--font-display); }

header {
  border-bottom: 1px solid var(--border-1);
  padding: 1.1rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
}

header h1 {
  margin: 0;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--fg-1);
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

header h1 img.logo { height: 28px; width: auto; }

header h1 .tag {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  font-weight: 600;
  color: var(--bg-2);
  background: var(--fs-cyan);
  padding: 0.15rem 0.45rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.08em;
}

.auth-area button {
  font-family: inherit;
  font-weight: 600;
  font-size: 0.85rem;
  background: transparent;
  border: 1px solid var(--border-1);
  color: var(--fg-2);
  padding: 0.45rem 0.9rem;
  cursor: pointer;
  border-radius: var(--radius-md);
}
.auth-area button:hover { border-color: var(--fs-cyan); color: var(--fs-cyan); }

main { max-width: 860px; margin: 0 auto; padding: 2rem 2rem 4rem; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  color: var(--fg-2);
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.search-row {
  display: flex;
  gap: 0.6rem;
  margin-bottom: 0.9rem;
  flex-wrap: wrap;
}

#q {
  flex: 1 1 320px;
  font-family: inherit;
  font-size: 1.05rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--border-1);
  border-radius: var(--radius-md);
  background: var(--bg-1);
  color: var(--fg-1);
}
#q:focus { outline: none; border-color: var(--fs-cyan); box-shadow: var(--shadow-focus); }
#q::placeholder { color: var(--fg-3); }

button.primary {
  font-family: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  background: var(--fs-navy);
  color: var(--fs-white);
  border: none;
  padding: 0 1.4rem;
  border-radius: var(--radius-md);
  cursor: pointer;
}
button.primary:hover { background: #0a4a91; }

.filters {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-bottom: 1.6rem;
  font-size: 0.82rem;
  color: var(--fg-2);
}

.filters label { display: flex; align-items: center; gap: 0.35rem; }
.filters select, .filters input[type="number"] {
  font-family: inherit;
  font-size: 0.82rem;
  padding: 0.3rem 0.5rem;
  border: 1px solid var(--border-1);
  border-radius: var(--radius-sm);
  background: var(--bg-1);
  color: var(--fg-1);
}

#status-line {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--fg-2);
  margin-bottom: 1rem;
  min-height: 1.2em;
}

.result {
  border-bottom: 1px solid var(--border-1);
  padding: 1.2rem 0;
}
.result:first-child { padding-top: 0; }

.result h3 {
  margin: 0 0 0.3rem;
  font-size: 1.15rem;
  font-weight: 600;
  cursor: pointer;
  color: var(--fg-1);
}
.result h3:hover { color: var(--fs-cyan); }

.result .meta {
  font-family: var(--font-mono);
  font-size: 0.76rem;
  color: var(--fg-2);
  margin-bottom: 0.45rem;
}

.result .abstract {
  font-size: 0.95rem;
  color: var(--fg-2);
}

.badge {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.66rem;
  font-weight: 700;
  padding: 0.12rem 0.42rem;
  border-radius: var(--radius-sm);
  letter-spacing: 0.04em;
}
.badge.oa { background: rgba(31, 157, 85, 0.15); color: var(--fs-success); border: 1px solid rgba(31,157,85,0.4); }
.badge.closed { background: rgba(168,184,204,0.1); color: var(--fg-2); border: 1px solid var(--border-1); }

.pdf-link {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--fs-cyan);
  text-decoration: none;
}
.pdf-link:hover { text-decoration: underline; }

.login-gate {
  text-align: center;
  padding: 5rem 1rem;
  color: var(--fg-2);
}
.login-gate button {
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  background: var(--fs-navy);
  color: var(--fs-white);
  border: none;
  padding: 0.8rem 2rem;
  border-radius: var(--radius-md);
  cursor: pointer;
  margin-top: 1.2rem;
}
.login-gate button:hover { background: #0a4a91; }

/* Detail overlay */
#detail-overlay {
  position: fixed; inset: 0; background: rgba(6,9,14,0.7);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 3rem 1rem; overflow-y: auto;
}
#detail-overlay[hidden] { display: none; }
.detail-card {
  background: var(--bg-1);
  border: 1px solid var(--border-1);
  max-width: 700px; width: 100%;
  border-radius: var(--radius-md);
  padding: 1.8rem 2rem;
  position: relative;
}
.detail-card .close {
  position: absolute; top: 0.8rem; right: 1rem;
  font-family: inherit;
  background: none; border: none; font-size: 1.4rem; cursor: pointer; color: var(--fg-2);
}
.detail-card .close:hover { color: var(--fs-cyan); }
.detail-card h2 { margin-top: 0; color: var(--fg-1); }
.detail-card .authors { font-size: 0.85rem; color: var(--fg-2); margin-bottom: 1rem; }
.detail-card p { color: var(--fg-2); }
.detail-card .topics { margin-top: 1rem; font-family: var(--font-mono); font-size: 0.72rem; }
.detail-card .topics span { background: rgba(60,210,255,0.12); color: var(--fs-cyan); border-radius: var(--radius-sm); padding: 0.15rem 0.45rem; margin-right: 0.3rem; display: inline-block; margin-bottom: 0.3rem; }

footer {
  max-width: 860px; margin: 0 auto; padding: 1rem 2rem 3rem;
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--fg-2);
}