:root {
  --bg: #0d1020;
  --panel: #151a30;
  --panel-2: #0f1428;
  --text: #f6f7fb;
  --muted: #aeb5cc;
  --line: #2a3150;
  --accent: #8d7cff;
  --accent-2: #b4a9ff;
  --danger: #ff9eac;
  --success: #98e7ba;
}
* { box-sizing: border-box; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 50% -15%, #252c5a 0, transparent 38%), var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
.shell { width: min(980px, calc(100% - 32px)); margin: 0 auto; padding: 72px 0 96px; }
.hero { max-width: 760px; margin-bottom: 32px; }
.eyebrow { color: var(--accent-2); text-transform: uppercase; letter-spacing: .13em; font-size: .76rem; font-weight: 800; }
h1 { margin: 10px 0 12px; font-size: clamp(2.7rem, 8vw, 5.8rem); line-height: .93; letter-spacing: -.055em; }
h2 { margin: 6px 0 0; font-size: 1.65rem; }
h3 { margin: 0; }
p { color: var(--muted); line-height: 1.6; }
.card { border: 1px solid var(--line); background: color-mix(in srgb, var(--panel) 92%, transparent); border-radius: 22px; padding: 24px; box-shadow: 0 18px 60px rgba(0,0,0,.22); }
.url-card, .editor { margin-bottom: 22px; }
label { display: grid; gap: 8px; font-size: .88rem; color: #dfe3f4; font-weight: 700; }
.url-row { display: grid; grid-template-columns: 1fr auto; gap: 10px; margin-top: 8px; }
input { width: 100%; background: var(--panel-2); color: var(--text); border: 1px solid var(--line); border-radius: 12px; padding: 13px 14px; font: inherit; outline: none; }
input:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(141,124,255,.15); }
button { border: 0; border-radius: 12px; background: var(--accent); color: white; font-weight: 800; padding: 12px 18px; cursor: pointer; font: inherit; }
button:hover { filter: brightness(1.08); }
button:disabled { opacity: .6; cursor: wait; }
button.secondary, .copy { background: #242b48; color: #eceefe; border: 1px solid #343d63; }
.hint, .fineprint { font-size: .83rem; margin-bottom: 0; }
.status { min-height: 22px; margin-top: 10px; color: var(--muted); font-size: .9rem; }
.status.error { color: var(--danger); }
.status.success { color: var(--success); }
.hidden { display: none; }
.section-head, .citation-head { display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px; margin-top: 22px; }
.citations { display: grid; gap: 14px; margin-top: 24px; }
.citation-box { background: var(--panel-2); border: 1px solid var(--line); border-radius: 16px; padding: 18px; }
.citation-head { margin-bottom: 14px; }
.citation-text { font-family: Georgia, 'Times New Roman', serif; font-size: 1.03rem; line-height: 1.7; color: #f8f8fb; padding-left: 2em; text-indent: -2em; overflow-wrap: anywhere; }
.copy { padding: 8px 12px; font-size: .83rem; }
.button-row { display: flex; align-items: center; gap: 9px; flex-wrap: wrap; }

.bibliography { margin-top: 22px; }
.bibliography-intro { margin: 7px 0 0; }
.count-badge { display: inline-flex; min-width: 28px; height: 28px; align-items: center; justify-content: center; padding: 0 8px; margin-left: 6px; border-radius: 999px; background: #2a3150; color: #e7e9f5; font-size: .9rem; vertical-align: .18em; }
.reference-list { display: grid; gap: 10px; margin-top: 24px; }
.saved-reference { display: grid; grid-template-columns: 1fr auto; gap: 18px; align-items: start; border: 1px solid var(--line); background: var(--panel-2); border-radius: 15px; padding: 17px 18px; }
.saved-reference-text { font-size: .96rem; }
.remove-reference { padding: 8px 11px; font-size: .78rem; }
.export-panel { margin-top: 20px; padding: 18px; border-radius: 16px; border: 1px solid #38436b; background: linear-gradient(135deg, rgba(141,124,255,.10), rgba(15,20,40,.82)); display: grid; grid-template-columns: 120px 1fr auto; gap: 18px; align-items: center; }
.page-number-field input { max-width: 100px; }
.export-copy { display: grid; gap: 5px; }
.export-copy strong { color: #f7f8ff; }
.export-copy span { color: var(--muted); line-height: 1.45; font-size: .86rem; }
.export-buttons { justify-content: flex-end; }

@media (max-width: 820px) {
  .export-panel { grid-template-columns: 1fr; }
  .page-number-field { max-width: 180px; }
  .export-buttons { justify-content: flex-start; }
}
@media (max-width: 680px) {
  .shell { padding-top: 42px; }
  .url-row, .grid { grid-template-columns: 1fr; }
  .url-row button { width: 100%; }
  .section-head, .citation-head { align-items: flex-start; flex-direction: column; }
  .saved-reference { grid-template-columns: 1fr; }
  .remove-reference { justify-self: start; }
}