/* ─── RESET & BASE ──────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --blue:       #1a73e8;
  --dark:       #1c1c2e;
  --light-bg:   #ffffff;
  --alt-bg:     #ffffff;
  --text:       #333;
  --muted:      #888;
  --radius:     8px;
  --max-width:  900px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Segoe UI', Arial, sans-serif;
  color: var(--text);
  background: var(--light-bg);
  line-height: 1.7;
}

p {
  margin-bottom: 18px;
}

a { color: var(--blue); text-decoration: none; }
a:hover { text-decoration: underline; }

/* ─── HERO ──────────────────────────────────────────────────────── */
.hero {
  background: var(--dark);
  color: #fff;
  text-align: center;
  padding: 80px 24px 60px;
}

.hero h1 {
  font-size: 2.6rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.hero .subtitle {
  font-size: 1.2rem;
  color: #aac4ff;
  margin-bottom: 10px;
}

.hero .authors {
  font-size: 0.95rem;
  color: #ccc;
  margin: 4px 0;
}

.hero .authors:last-of-type {
  margin-bottom: 24px;
}

.btn-github {
  display: inline-block;
  padding: 10px 22px;
  border: 2px solid #fff;
  border-radius: var(--radius);
  color: #fff;
  font-weight: 600;
  transition: background 0.2s, color 0.2s;
}

.btn-github:hover {
  background: #fff;
  color: var(--dark);
  text-decoration: none;
}

/* ─── NAVBAR ────────────────────────────────────────────────────── */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--dark);
  border-top: 1px solid #2e2e4a;
}

.navbar ul {
  display: flex;
  justify-content: center;
  list-style: none;
  gap: 8px;
  padding: 0 16px;
  flex-wrap: wrap;
}

.navbar li a {
  display: block;
  padding: 14px 18px;
  color: #cdd8f0;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: color 0.2s;
}

.navbar li a:hover,
.navbar li a.active {
  color: #fff;
  text-decoration: none;
}

.navbar li a.active {
  border-bottom: 2px solid var(--blue);
}

/* ─── SECTIONS ──────────────────────────────────────────────────── */
.section       { background: var(--light-bg); padding: 40px 18px; }
.section-alt   { background: var(--alt-bg); }

/* Highlight Results when placed at the front */
#results {
  background: #ffffff;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
}

.section h2 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 20px;
  padding-bottom: 8px;
  border-bottom: 3px solid var(--blue);
  display: inline-block;
}

/* ─── ARTICLES (sub-sections) ───────────────────────────────────── */
article {
  margin-top: 20px;
}

article h3 {
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--dark);
  margin-bottom: 12px;
  padding-left: 12px;
  border-left: 4px solid var(--blue);
}

/* ─── PLACEHOLDER TEXT ──────────────────────────────────────────── */
.placeholder {
  color: var(--muted);
  font-style: italic;
  background: #e8edf4;
  border: 1px dashed #b5c3d8;
  border-radius: var(--radius);
  padding: 18px 20px;
  min-height: 60px;
}

/* ─── TEAM ──────────────────────────────────────────────────────── */
.team-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 32px;
  margin-top: 16px;
}

.team-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  box-shadow: 0 2px 8px rgba(0,0,0,0.07);
}

.team-photo-placeholder {
  width: 90px;
  height: 90px;
  border-radius: 50%;
  background: #d0daea;
  margin: 0 auto 14px;
}

.team-card h3 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 4px;
  border: none;
  padding: 0;
}

.team-card p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 8px;
}

/* ─── FOOTER ────────────────────────────────────────────────────── */
.footer {
  background: var(--dark);
  color: #ccc;
  text-align: center;
  padding: 40px 24px;
}

.footer h4 {
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: #fff;
}

.footer ul {
  list-style: none;
  display: flex;
  justify-content: center;
  gap: 20px;
  flex-wrap: wrap;
  margin-bottom: 16px;
}

.footer ul a {
  color: #aac4ff;
  font-size: 0.9rem;
}

.footer-note {
  font-size: 0.8rem;
  color: var(--muted);
}

/* ─── RESPONSIVE ────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .hero h1    { font-size: 1.8rem; }
  .section h2 { font-size: 1.5rem; }
  .navbar ul  { gap: 0; }
  .navbar li a { padding: 10px 12px; }
}

/* ─── Images ────────────────────────────────────────────────── */
.figure img {
  width: 100%;
  max-width: 750px;
  height: auto;
  display: block;
  margin: 0 auto;
}

figcaption {
  text-align: center;
}

.figure-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 30px;
  margin: 30px 0;
}

.figure-grid figure {
  display: flex;
  flex-direction: column;
}

.figure-grid img {
  max-height: 350px;
  width: 80%;
  object-fit: contain;
  margin-bottom: auto;
}

.figure-grid figcaption {
  text-align: center;
  margin-top: 10px;
}

img {
  max-width: 100%;
  height: auto;
}

/* ─── Bullet Points ────────────────────────────────────────────────── */
ul {
  padding-left: 40px;
}

li {
  margin-bottom: 6px;
}

/* ─── TABLE STYLES (Results) ───────────────────────────────────── */
.table-responsive {
  overflow-x: auto;
  margin: 16px 0 28px;
}

.results-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  box-shadow: 0 1px 2px rgba(20,30,60,0.04);
}

.results-table caption {
  caption-side: top;
  font-weight: 700;
  padding: 10px 0;
  color: var(--dark);
}

.results-table th,
.results-table td {
  border: 1px solid #d6e0ef;
  padding: 10px 12px;
  text-align: center;
  vertical-align: middle;
  font-size: 0.95rem;
}

.results-table thead th {
  background: #f1f6fb;
  color: var(--dark);
}

.results-table tbody tr.total-row td,
.results-table tbody tr.best-row td {
  background: #fbfdff;
}

@media (max-width: 600px) {
  .results-table th,
  .results-table td { font-size: 0.9rem; padding: 8px; }
}

/* Mobile-specific tweaks for tables */
@media (max-width: 480px) {
  .table-responsive { -webkit-overflow-scrolling: touch; padding: 6px 0; }

  /* Make the small feature summary table fill the available width on phones */
  .summary-table {
    max-width: 100%;
    margin: 0 8px;
    table-layout: auto;
  }

  /* Reduce padding slightly for cramped screens */
  .results-table th,
  .results-table td {
    padding: 6px 8px;
    font-size: 0.88rem;
  }
}

/* Narrow summary table used for feature distribution */
.summary-table {
  max-width: 520px;
  margin: 0 auto;
  table-layout: fixed;
}

.summary-table td { word-wrap: break-word; }