static/styles.css

@import url('https://fonts.googleapis.com/css2?family=Lato:wght@300;400;700&display=swap');

:root {
  --bg: #f6f1eb;
  --bg-ink: #141210;
  --muted: #3d3832;          /* Darkened: original #5a534a was too light */
  --accent: #cb5a2d;
  --accent-light: #e8d0c3;
  --line: #ddd3c9;
  --card: #fffaf4;
  --shadow: 0 4px 20px rgba(20, 18, 16, 0.08);
  --header-bg: #fdfdfd;
}

body {
  margin: 0;
  font-family: "Lato", sans-serif;
  color: var(--bg-ink);
  background: radial-gradient(circle at top left, #fdeee0 0%, var(--bg) 50%, #f3efe8 100%);
  min-height: 100vh;
}

.page { max-width: 1280px; margin: 0 auto; padding: 0 24px 60px; }

/* ===== Paper Header ===== */
.paper-header {
  padding: 48px 0 24px;
  text-align: center;
}

/* RUC Logo */
.institution-logo {
  margin-bottom: 20px;
}
.ruc-logo {
  height: 64px;
  width: auto;
  opacity: 0.9;
}

.paper-title {
  font-family: "Lato", sans-serif;
  font-size: 2.2rem;
  font-weight: 700;
  line-height: 1.35;
  color: var(--bg-ink);
  margin: 0 auto 16px;
  max-width: 900px;
}

.paper-authors {
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.7;
  margin: 0 auto 6px;
  max-width: 860px;
}
.paper-authors sup { font-size: 0.7em; color: var(--accent); margin-right: 1px; }

.paper-affiliations {
  font-size: 0.88rem;
  color: #666;              /* Darkened: original #888 was too light */
  margin: 0 auto 20px;
}
.paper-affiliations sup { font-size: 0.7em; color: var(--accent); }
.affil-sep { margin: 0 8px; }

.paper-links {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.badge-link {
  text-decoration: none; color: var(--bg-ink); font-weight: bold;
  padding: 8px 18px; border: 1px solid var(--line); border-radius: 20px;
  background: white; transition: all 0.2s; display: flex; align-items: center; gap: 8px;
  font-size: 0.9rem;
}
.badge-link:hover { border-color: var(--accent); color: var(--accent); }

/* ===== Leaderboard Hero ===== */
.leaderboard-hero {
  text-align: center;
  padding: 10px 0 30px;
}

.hero-divider {
  width: 60px;
  height: 3px;
  background: var(--line);
  margin: 0 auto 28px;
  border-radius: 2px;
}

.leaderboard-title {
  font-family: "Lato", sans-serif;
  font-size: 2.1rem;
  font-weight: 700;
  color: var(--bg-ink);
  margin: 0 0 8px;
}
.leaderboard-title i { color: var(--accent); margin-right: 6px; }

.leaderboard-subtitle {
  font-size: 1.1rem;
  color: var(--muted);
  margin: 0 0 24px;
}

/* Stat Bar */
.stat-bar {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 24px;
  background: white;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 16px 40px;
  width: fit-content;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

.stat-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
}

.stat-num {
  font-family: "Lato", sans-serif;
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}

.stat-label {
  font-size: 0.78rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.stat-divider {
  width: 1px;
  height: 32px;
  background: var(--line);
}

/* ===== Info Section ===== */
.info-section { margin-bottom: 36px; }
.info-grid {
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px;
}
@media (max-width: 800px) {
  .info-grid { grid-template-columns: 1fr; }
}

.info-card {
  background: white; padding: 24px; border-radius: 12px;
  border: 1px solid var(--line); box-shadow: var(--shadow);
}
.info-card h3 {
  margin: 0 0 12px; color: var(--accent);
  display: flex; align-items: center; gap: 10px;
  font-size: 1.2rem;
}
.info-card p {
  font-size: 1.00rem;
  line-height: 1.65;
  color: var(--bg-ink);           /* Changed to black, no longer using gray */
  margin: 0 0 10px;
}
.info-card p:last-child { margin-bottom: 0; }
.info-card code {
  background: #f4f0ec; padding: 2px 6px; border-radius: 4px; font-size: 0.85em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--accent);
}

.info-list {
  list-style: none; padding: 0; margin: 8px 0 12px;
}
.info-list li {
  font-size: 0.93rem;
  line-height: 1.6;
  color: var(--bg-ink);           /* Changed to black */
  padding: 5px 0 5px 16px;
  position: relative;
}
.info-list li::before {
  content: "";
  position: absolute;
  left: 0; top: 13px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.info-list.compact li { padding: 3px 0 3px 16px; }
.info-list.compact li::before { top: 11px; }

/* ===== Main Navigation (Tabs) ===== */
.main-nav {
  display: flex; justify-content: center; gap: 10px; margin-bottom: 30px;
  background: rgba(255,255,255,0.6); padding: 10px; border-radius: 50px;
  width: fit-content; margin-left: auto; margin-right: auto;
  border: 1px solid var(--line);
}
.nav-btn {
  border: none; background: transparent; padding: 10px 24px;
  border-radius: 30px; font-size: 1rem; font-weight: bold; color: var(--muted);
  cursor: pointer; transition: all 0.2s; display: flex; align-items: center; gap: 8px;
  font-family: "Lato", sans-serif;
}
.nav-btn.active { background: var(--accent); color: white; box-shadow: 0 2px 10px rgba(203, 90, 45, 0.3); }
.nav-btn:hover:not(.active) { background: var(--accent-light); color: var(--accent); }

/* ===== Sub Tabs ===== */
.sub-tabs-container { display: flex; justify-content: flex-start; gap: 20px; margin-bottom: 20px; border-bottom: 2px solid var(--line); padding-bottom: 10px; }
.sub-tab-btn {
  background: none; border: none; font-size: 1.1rem; font-weight: bold;
  color: var(--muted); cursor: pointer; padding: 5px 10px;
  border-bottom: 3px solid transparent; transition: all 0.2s;
  font-family: "Lato", sans-serif;
}
.sub-tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); }

/* ===== Filters Toolbar ===== */
.filters-toolbar {
  display: flex; gap: 20px; margin-bottom: 20px; background: white;
  padding: 15px; border-radius: 10px; border: 1px solid var(--line); align-items: center; flex-wrap: wrap;
}
.filter-group { display: flex; align-items: center; gap: 10px; }
.filter-group label { font-weight: bold; font-size: 0.9rem; color: var(--muted); }
.filter-group input, .filter-group select {
  padding: 8px 12px; border: 1px solid var(--line); border-radius: 6px; outline: none; font-family: "Lato", sans-serif;
}

/* ===== Tables ===== */
.table-container { overflow-x: auto; background: white; border-radius: 12px; border: 1px solid var(--line); box-shadow: var(--shadow); }
table { width: 100%; border-collapse: collapse; min-width: 1000px; }

th, td {
  padding: 12px;
  text-align: center;
  border-bottom: 1px solid #f0f0f0;
  font-size: 0.95rem;
  white-space: nowrap;
}

th {
  background: var(--header-bg); padding: 15px 12px;
  border-bottom: 1px solid var(--line); color: var(--muted); font-size: 0.9rem;
  cursor: pointer; user-select: none;
}
th.align-left { text-align: left; }

/* Highlight table header for current sort column */
th.sortable.active-sort {
  background: #fff5eb;
  color: var(--accent);
  font-weight: 700;
}

tr:last-child td { border-bottom: none; }
tr:hover td { background: #fafafa; }

.rank-col { font-weight: bold; font-size: 1.1rem; width: 60px; }

.method-col {
  text-align: left;
  min-width: 220px;
  max-width: 350px;
  white-space: normal;
}

.method-name { font-weight: 700; color: var(--bg-ink); text-decoration: none; font-size: 1rem; line-height: 1.4; display: block; }
.org-name { font-size: 0.8rem; color: #666; margin-top: 4px; }

.track-tag { font-size: 0.75rem; padding: 3px 8px; border-radius: 4px; font-weight: bold; text-transform: uppercase; }
.track-tag.Standard { background: #e3f2fd; color: #1565c0; }
.track-tag.Open { background: #fce4ec; color: #c2185b; }

/* ---- Score columns: default all black ---- */
td.score-cell {
  font-weight: 600;
  color: var(--bg-ink);
  font-size: 0.95rem;
}

/* Highlight score in current sort column as orange */
td.score-cell.active-col {
  font-weight: 700;
  color: var(--accent);
  background: #fff8f5;
  font-size: 1.05rem;
}

/* ===== Submit Section ===== */
.submit-container { display: flex; justify-content: center; }
.submit-card {
  background: white; width: 100%; max-width: 700px; padding: 32px;
  border-radius: 16px; border: 1px solid var(--line); box-shadow: var(--shadow);
}
.submit-card h2 {
  margin-top: 0;
  display: flex; align-items: center; gap: 10px;
}
.submit-card h2 i { color: var(--accent); }
.submit-card h4 { margin: 20px 0 10px; color: var(--bg-ink); }

/* Submit Flow Diagram */
.submit-flow {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  margin: 24px 0;
  padding: 20px;
  background: #faf8f5;
  border-radius: 12px;
  border: 1px solid var(--line);
}
.flow-step {
  display: flex;
  align-items: center;
  gap: 12px;
  flex: 1;
}
.flow-icon {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: var(--accent);
  color: white;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.flow-text {
  font-size: 0.85rem;
  line-height: 1.4;
  color: var(--bg-ink);
}
.flow-text strong { display: block; font-size: 0.9rem; }
.flow-arrow {
  color: var(--line);
  font-size: 1.2rem;
  flex-shrink: 0;
}

.field-desc p {
  font-size: 0.9rem; color: var(--bg-ink); margin: 6px 0; line-height: 1.5;
}
.field-desc code {
  background: #f4f0ec; padding: 2px 6px; border-radius: 4px; font-size: 0.85em;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: var(--accent);
}

.code-block {
  background: #faf8f5; padding: 16px; border-radius: 8px;
  font-size: 0.85rem; overflow-x: auto; font-family: ui-monospace, SFMono-Regular, Menlo, monospace; color: #333;
  border: 1px solid #e8e2da;
  white-space: pre;
  line-height: 1.55;
}

.upload-form { margin-top: 16px; }
.upload-form input[type="file"] {
  width: 100%; padding: 10px; border: 2px dashed var(--line); border-radius: 8px;
  background: #faf8f5; cursor: pointer; font-family: "Lato", sans-serif;
  box-sizing: border-box;
}

.btn.primary {
  background: var(--accent); color: white; border: none; padding: 12px 24px;
  border-radius: 8px; font-weight: bold; cursor: pointer; width: 100%; margin-top: 16px;
  transition: background 0.2s;
  font-family: "Lato", sans-serif; font-size: 1rem;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.btn.primary:hover { background: #b14a1f; }
.btn.primary:disabled { background: #ccc; cursor: not-allowed; }

/* Submit Result Messages */
#submit-result {
  margin-top: 20px;
  padding: 16px;
  border-radius: 8px;
  font-size: 0.93rem;
  line-height: 1.6;
}
#submit-result.success {
  background: #e8f5e9;
  border: 1px solid #a5d6a7;
  color: #2e7d32;
}
#submit-result.error {
  background: #fce4ec;
  border: 1px solid #ef9a9a;
  color: #c62828;
}
#submit-result a {
  color: var(--accent);
  font-weight: bold;
}

/* ===== Citation ===== */
.citation-section {
  margin-top: 48px;
  text-align: center;
}
.citation-section h3 {
  color: var(--muted);
  font-size: 1rem;
  margin-bottom: 12px;
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.citation-section h3 i { color: var(--accent); }
.citation-block {
  text-align: left;
  max-width: 800px;
  margin: 0 auto;
  font-size: 0.82rem;
}

/* ===== Footer ===== */
.footer { text-align: center; padding: 40px; color: var(--muted); font-size: 0.9rem; }

/* ===== Responsive ===== */
@media (max-width: 640px) {
  .paper-title { font-size: 1.4rem; }
  .leaderboard-title { font-size: 1.8rem; }
  .stat-bar { flex-wrap: wrap; padding: 16px 20px; gap: 16px; }
  .stat-divider { display: none; }
  .paper-authors { font-size: 0.85rem; }
  .paper-links { flex-wrap: wrap; }
  .submit-flow { flex-direction: column; gap: 16px; }
  .flow-arrow { transform: rotate(90deg); }
  .ruc-logo { height: 48px; }
}