/* ===========================
   BIOINFORMATIQUE — CSS
   Thème : Laboratoire / Organique
   =========================== */

@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=IBM+Plex+Mono:wght@400;600&family=Source+Sans+3:wght@300;400;600&display=swap');

:root {
  --bg-dark:      #0a0f14;
  --bg-panel:     #0f1a20;
  --bg-card:      #111e27;
  --accent-green: #00e5a0;
  --accent-teal:  #00b4d8;
  --accent-glow:  rgba(0, 229, 160, 0.18);
  --text-main:    #d4e8de;
  --text-muted:   #6a9280;
  --text-heading: #e8f5ee;
  --border:       rgba(0, 229, 160, 0.15);
  --font-display: 'DM Serif Display', serif;
  --font-mono:    'IBM Plex Mono', monospace;
  --font-body:    'Source Sans 3', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-main);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-dark); }
::-webkit-scrollbar-thumb { background: var(--accent-green); border-radius: 3px; }

/* ══ CANVAS BACKGROUND ══ */
#dna-canvas {
  position: fixed;
  top: 0; left: 0;
  width: 100%; height: 100%;
  z-index: 0;
  opacity: 0.35;
  pointer-events: none;
}

/* ══ LAYOUT ══ */
.page-wrapper {
  position: relative;
  z-index: 1;
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 32px 80px;
}

/* ══ HEADER ══ */
.site-header {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 24px 0 16px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 0;
}

.site-header .breadcrumb {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
}

.site-header .breadcrumb a { color: var(--accent-green); text-decoration: none; }
.site-header .breadcrumb span { margin: 0 8px; }

/* ══ HERO ══ */
.hero {
  padding: 72px 0 56px;
  position: relative;
}

.hero-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.2em;
  color: var(--accent-green);
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.hero-label::before {
  content: '';
  display: inline-block;
  width: 32px;
  height: 1px;
  background: var(--accent-green);
}

.hero h1 {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 4.8rem);
  line-height: 1.1;
  color: var(--text-heading);
  margin-bottom: 24px;
  font-style: italic;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent-green);
  position: relative;
}

.hero-desc {
  max-width: 620px;
  font-size: 1.1rem;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}

.hero-stats {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-family: var(--font-display);
  font-size: 2.2rem;
  color: var(--accent-green);
  line-height: 1;
}

.stat-label {
  font-family: var(--font-mono);
  font-size: 0.65rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  margin-top: 4px;
}

/* ══ NAV PILLS ══ */
.section-nav {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 24px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  margin-bottom: 64px;
}

.nav-pill {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  padding: 7px 18px;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--text-muted);
  text-decoration: none;
  letter-spacing: 0.06em;
  transition: all 0.25s;
}

.nav-pill:hover, .nav-pill.active {
  border-color: var(--accent-green);
  color: var(--accent-green);
  background: var(--accent-glow);
}

/* ══ SECTIONS ══ */
.content-section {
  margin-bottom: 80px;
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.content-section.visible {
  opacity: 1;
  transform: translateY(0);
}

.section-header {
  display: flex;
  align-items: baseline;
  gap: 20px;
  margin-bottom: 36px;
}

.section-num {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green);
  opacity: 0.6;
  min-width: 32px;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  color: var(--text-heading);
  font-style: italic;
}

/* ══ CARDS ══ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 20px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px;
  position: relative;
  overflow: hidden;
  transition: border-color 0.3s, transform 0.3s;
}

.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent-green), var(--accent-teal));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

.card:hover { border-color: rgba(0, 229, 160, 0.35); transform: translateY(-3px); }
.card:hover::before { transform: scaleX(1); }

.card-icon {
  width: 40px;
  height: 40px;
  background: var(--accent-glow);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.card h3 {
  font-family: var(--font-mono);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent-green);
  margin-bottom: 10px;
  letter-spacing: 0.04em;
}

.card p {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.65;
}

/* ══ ALGORITHM BLOCKS ══ */
.algo-block {
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent-green);
  border-radius: 0 12px 12px 0;
  padding: 28px 32px;
  margin-bottom: 24px;
}

.algo-block h3 {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-teal);
  margin-bottom: 8px;
}

.algo-block .complexity {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-green);
  background: var(--accent-glow);
  display: inline-block;
  padding: 2px 10px;
  border-radius: 4px;
  margin-bottom: 14px;
}

.algo-block p { font-size: 0.93rem; color: var(--text-muted); }

/* ══ CODE SNIPPET ══ */
.code-snippet {
  background: #060d11;
  border: 1px solid var(--border);
  border-radius: 10px;
  overflow: hidden;
  margin: 24px 0;
}

.code-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  border-bottom: 1px solid var(--border);
  background: var(--bg-panel);
}

.code-lang {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-green);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.code-dots { display: flex; gap: 6px; }
.code-dots span {
  width: 10px; height: 10px;
  border-radius: 50%;
}
.code-dots span:nth-child(1) { background: #ff5f57; }
.code-dots span:nth-child(2) { background: #febc2e; }
.code-dots span:nth-child(3) { background: #28c840; }

.code-snippet pre {
  padding: 20px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.82rem;
  line-height: 1.7;
  color: #7ecfae;
}

.code-snippet pre .kw  { color: #00e5a0; }
.code-snippet pre .fn  { color: #00b4d8; }
.code-snippet pre .str { color: #f4a261; }
.code-snippet pre .cm  { color: #4a7060; font-style: italic; }
.code-snippet pre .num { color: #c084fc; }

/* ══ DB TABLE ══ */
.db-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
  margin: 24px 0;
}

.db-table thead th {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--accent-green);
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.db-table tbody td {
  padding: 14px 18px;
  border-bottom: 1px solid rgba(0, 229, 160, 0.06);
  color: var(--text-muted);
}

.db-table tbody tr:hover td { background: var(--accent-glow); color: var(--text-main); }

.db-table .tag {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  padding: 3px 9px;
  border-radius: 4px;
  background: rgba(0, 180, 216, 0.12);
  color: var(--accent-teal);
}

/* ══ QUOTE ══ */
.bio-quote {
  border-left: 3px solid var(--accent-green);
  padding: 20px 28px;
  margin: 32px 0;
  background: var(--accent-glow);
  border-radius: 0 12px 12px 0;
}

.bio-quote p {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-style: italic;
  color: var(--text-heading);
}

.bio-quote cite {
  display: block;
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  font-style: normal;
}

/* ══ PIPELINE ══ */
.pipeline {
  display: flex;
  align-items: stretch;
  gap: 0;
  flex-wrap: wrap;
  margin: 28px 0;
}

.pipe-step {
  flex: 1;
  min-width: 140px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 20px 16px;
  text-align: center;
  position: relative;
  transition: background 0.3s;
}

.pipe-step:first-child { border-radius: 10px 0 0 10px; }
.pipe-step:last-child  { border-radius: 0 10px 10px 0; }

.pipe-step:not(:last-child)::after {
  content: '→';
  position: absolute;
  right: -14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--accent-green);
  font-size: 1rem;
  z-index: 2;
  background: var(--bg-dark);
  padding: 0 4px;
}

.pipe-step:hover { background: var(--accent-glow); }

.pipe-step .pipe-icon { font-size: 1.5rem; margin-bottom: 8px; }

.pipe-step .pipe-name {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-green);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  display: block;
  margin-bottom: 4px;
}

.pipe-step p {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ══ TOOLS GRID ══ */
.tool-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 8px 14px;
  margin: 5px;
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-main);
  background: var(--bg-card);
  transition: all 0.2s;
}

.tool-pill:hover {
  border-color: var(--accent-teal);
  color: var(--accent-teal);
  background: rgba(0, 180, 216, 0.08);
}

.tool-pill .dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent-green);
}

/* ══ FOOTER ══ */
.page-footer {
  margin-top: 100px;
  padding-top: 28px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.page-footer p {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.page-footer a { color: var(--accent-green); text-decoration: none; }

/* ══ RESPONSIVE ══ */
@media (max-width: 720px) {
  .page-wrapper { padding: 0 20px 60px; }
  .hero-stats { gap: 28px; }
  .section-nav { gap: 8px; }
  .pipeline { flex-direction: column; }
  .pipe-step { border-radius: 10px; }
  .pipe-step::after { display: none; }
  .page-footer { flex-direction: column; }
}