/* Reset & Base */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #0d1117;
  --bg2:       #161b22;
  --bg3:       #21262d;
  --border:    #30363d;
  --accent:    #7c3aed;
  --accent2:   #a78bfa;
  --green:     #10b981;
  --yellow:    #f59e0b;
  --orange:    #f97316;
  --red:       #ef4444;
  --blue:      #3b82f6;
  --cyan:      #06b6d4;
  --text:      #e6edf3;
  --muted:     #8b949e;
  --radius:    8px;
  --radius-lg: 16px;
  --font:      'Inter', system-ui, -apple-system, sans-serif;
  --mono:      'JetBrains Mono', 'Fira Code', monospace;
}

html { scroll-behavior: smooth; }
body { background: var(--bg); color: var(--text); font-family: var(--font); font-size: 16px; line-height: 1.6; }
a { color: var(--accent2); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.container { max-width: 1100px; margin: 0 auto; padding: 0 1.5rem; }
section { padding: 5rem 0; }
section:nth-child(even) { background: var(--bg2); }

/* Nav */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(13,17,23,.92); backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border); padding: .875rem 0;
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.nav-logo { font-weight: 700; font-size: 1.05rem; color: var(--text); display: flex; align-items: center; gap: .5rem; }
.nav-logo span { color: var(--accent2); }
.nav-links { display: flex; align-items: center; gap: 1.5rem; list-style: none; }
.nav-links a { color: var(--muted); font-size: .875rem; transition: color .2s; }
.nav-links a:hover { color: var(--text); text-decoration: none; }
.lang-switcher { display: flex; align-items: center; gap: .25rem; background: var(--bg3); border: 1px solid var(--border); border-radius: 6px; padding: .2rem .3rem; }
.lang-btn { background: none; border: none; cursor: pointer; color: var(--muted); font-size: .8rem; font-weight: 600; padding: .2rem .5rem; border-radius: 4px; transition: all .15s; }
.lang-btn.active { background: var(--accent); color: #fff; }
.lang-btn:not(.active):hover { color: var(--text); }
.lang-switcher span { color: var(--border); }

/* Hero */
#hero {
  padding: 7rem 0 5rem; text-align: center;
  background: radial-gradient(ellipse 80% 60% at 50% -10%, rgba(124,58,237,.18) 0%, transparent 70%), var(--bg);
}
.hero-badge { display: inline-flex; align-items: center; gap: .5rem; background: rgba(124,58,237,.12); border: 1px solid rgba(124,58,237,.3); color: var(--accent2); font-size: .8rem; font-weight: 600; padding: .3rem .8rem; border-radius: 20px; margin-bottom: 1.5rem; font-family: var(--mono); }
.hero-badge .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s infinite; }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.3} }
#hero h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); font-weight: 800; line-height: 1.15; letter-spacing: -.02em; margin-bottom: 1rem; }
#hero h1 em { font-style: normal; color: var(--accent2); }
.hero-tagline { font-size: 1.15rem; color: var(--text); max-width: 600px; margin: 0 auto .5rem; }
.hero-sub { font-size: .95rem; color: var(--muted); max-width: 600px; margin: 0 auto 2.5rem; }
.hero-ctas { display: flex; justify-content: center; gap: 1rem; flex-wrap: wrap; }
.btn { display: inline-block; padding: .75rem 1.75rem; border-radius: var(--radius); font-weight: 600; font-size: .95rem; transition: all .2s; cursor: pointer; }
.btn-primary { background: var(--accent); color: #fff; }
.btn-primary:hover { background: #6d28d9; text-decoration: none; }
.btn-outline { border: 1px solid var(--border); color: var(--text); }
.btn-outline:hover { border-color: var(--accent2); color: var(--accent2); text-decoration: none; }

/* Section header */
.section-header { text-align: center; margin-bottom: 3rem; }
.section-header h2 { font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; margin-bottom: .75rem; }
.section-header p { color: var(--muted); font-size: 1.05rem; max-width: 600px; margin: 0 auto; }

/* Problems */
.problems-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.25rem; }
.problem-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; }
.problem-icon { font-size: 2rem; margin-bottom: .75rem; }
.problem-card h3 { font-size: 1rem; font-weight: 600; margin-bottom: .5rem; }
.problem-card p { font-size: .875rem; color: var(--muted); }

/* Pipeline / Workflow */
.pipeline {
  display: flex; flex-direction: column; align-items: center;
  gap: 0; max-width: 680px; margin: 0 auto;
}
.pipeline-arrow { color: var(--muted); font-size: 1.25rem; line-height: 1; padding: .2rem 0; }
.pipeline-step {
  width: 100%; background: var(--bg3); border: 1px solid var(--border);
  border-radius: var(--radius-lg); padding: 1rem 1.25rem;
  display: flex; flex-direction: column; gap: .3rem; position: relative;
}
.pipeline-step.step-plan  { border-left: 3px solid var(--accent2); }
.pipeline-step.step-dev   { border-left: 3px solid var(--blue); }
.pipeline-step.step-test  { border-left: 3px solid var(--cyan); }
.pipeline-step.step-review{ border-left: 3px solid var(--yellow); }
.pipeline-step.step-qa    { border-left: 3px solid var(--orange); }
.pipeline-step.step-doc   { border-left: 3px solid var(--green); }
.pipeline-step.step-qualif{ border-left: 3px solid var(--muted); }
.pipeline-step.step-prod  { border-left: 3px solid var(--green); background: rgba(16,185,129,.06); }
.step-agent { font-family: var(--mono); font-size: .72rem; color: var(--muted); }
.step-title { font-weight: 600; font-size: .95rem; }
.step-desc  { font-size: .8rem; color: var(--muted); }

.pipeline-gate {
  width: 100%; background: rgba(124,58,237,.08); border: 1px dashed rgba(124,58,237,.4);
  border-radius: var(--radius); padding: .75rem 1.25rem;
  display: flex; align-items: center; gap: .75rem; flex-wrap: wrap;
}
.pipeline-gate.gate-user { background: rgba(16,185,129,.06); border-color: rgba(16,185,129,.4); }
.gate-label { font-family: var(--mono); font-size: .75rem; font-weight: 700; color: var(--accent2); background: rgba(124,58,237,.2); padding: .2rem .5rem; border-radius: 4px; white-space: nowrap; }
.gate-user .gate-label { color: var(--green); background: rgba(16,185,129,.15); }
.gate-desc { font-size: .85rem; color: var(--text); flex: 1; }
.gate-branches { width: 100%; display: flex; gap: 1rem; margin-top: .25rem; flex-wrap: wrap; }
.gate-ok { font-size: .8rem; color: var(--green); }
.gate-ko { font-size: .8rem; color: var(--red); }

.pipeline-parallel-block { width: 100%; display: flex; flex-direction: column; align-items: center; }
.parallel-header { font-size: .75rem; font-weight: 600; color: var(--cyan); letter-spacing: .05em; text-transform: uppercase; margin-bottom: .5rem; }
.pipeline-parallel { width: 100%; display: grid; grid-template-columns: 1fr auto 1fr; gap: .5rem; align-items: center; }
.parallel-sep { font-size: 1.5rem; color: var(--cyan); text-align: center; font-weight: 700; }

.step-label { display: inline-block; font-size: .7rem; font-weight: 700; font-family: var(--mono); padding: .15rem .5rem; border-radius: 4px; margin-top: .4rem; }
.label-planning { background: rgba(167,139,250,.15); color: var(--accent2); border: 1px solid rgba(167,139,250,.3); }
.label-encours  { background: rgba(59,130,246,.15); color: #60a5fa; border: 1px solid rgba(59,130,246,.3); }
.label-review   { background: rgba(245,158,11,.15); color: var(--yellow); border: 1px solid rgba(245,158,11,.3); }
.label-qa       { background: rgba(249,115,22,.15); color: var(--orange); border: 1px solid rgba(249,115,22,.3); }
.label-done     { background: rgba(16,185,129,.15); color: var(--green); border: 1px solid rgba(16,185,129,.3); }

.pipeline-note { margin-top: 1.5rem; font-size: .8rem; color: var(--muted); text-align: center; max-width: 560px; padding: .75rem 1rem; background: var(--bg3); border-radius: var(--radius); border: 1px solid var(--border); }

/* GitHub section */
.github-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 1.5rem; }
.github-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.github-card h3 { font-size: 1rem; font-weight: 700; }
.github-card > p { font-size: .875rem; color: var(--muted); }

/* Label chain */
.label-chain { display: flex; flex-wrap: wrap; align-items: flex-start; gap: .35rem; }
.label-step { display: flex; flex-direction: column; align-items: center; gap: .2rem; }
.label-step-desc { font-size: .65rem; color: var(--muted); text-align: center; }
.label-arrow { color: var(--muted); font-size: .875rem; margin-top: .35rem; }
.label-note { font-size: .78rem; color: var(--muted); font-style: italic; }

/* Phase badges */
.phase-badge { display: inline-block; font-size: .7rem; font-weight: 700; font-family: var(--mono); padding: .2rem .5rem; border-radius: 4px; white-space: nowrap; }
.badge-planning { background: rgba(167,139,250,.15); color: var(--accent2); border: 1px solid rgba(167,139,250,.3); }
.badge-encours  { background: rgba(59,130,246,.15); color: #60a5fa; border: 1px solid rgba(59,130,246,.3); }
.badge-review   { background: rgba(245,158,11,.15); color: var(--yellow); border: 1px solid rgba(245,158,11,.3); }
.badge-qa       { background: rgba(249,115,22,.15); color: var(--orange); border: 1px solid rgba(249,115,22,.3); }
.badge-done     { background: rgba(16,185,129,.15); color: var(--green); border: 1px solid rgba(16,185,129,.3); }
.badge-closed   { background: rgba(139,148,158,.12); color: var(--muted); border: 1px solid var(--border); }

/* Milestone demo */
.milestone-demo { background: var(--bg2); border: 1px solid var(--border); border-radius: var(--radius); padding: .875rem 1rem; }
.milestone-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: .5rem; }
.milestone-name { font-family: var(--mono); font-size: .85rem; font-weight: 600; color: var(--accent2); }
.milestone-pct { font-size: .8rem; font-weight: 700; color: var(--green); }
.milestone-bar { height: 6px; background: var(--bg3); border-radius: 3px; overflow: hidden; margin-bottom: .5rem; }
.milestone-fill { height: 100%; background: linear-gradient(90deg, var(--green), #34d399); border-radius: 3px; }
.milestone-issues { display: flex; gap: 1rem; font-size: .78rem; }
.mi-closed { color: var(--green); }
.mi-open { color: var(--muted); }
.milestone-features { list-style: none; display: flex; flex-direction: column; gap: .4rem; font-size: .82rem; color: var(--muted); }
.milestone-features code { font-family: var(--mono); color: var(--accent2); font-size: .78rem; }

/* Label map (backlog) */
.label-map { display: flex; flex-direction: column; gap: .4rem; }
.lm-row { display: flex; align-items: center; gap: .5rem; font-size: .82rem; }
.lm-label { color: var(--muted); flex: 1; }
.lm-arrow { color: var(--border); }
.lm-cmd { font-family: var(--mono); color: var(--accent2); font-weight: 600; }

/* Features */
.features-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.25rem; }
.feature-card { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; display: flex; gap: 1rem; align-items: flex-start; transition: border-color .2s; }
.feature-card:hover { border-color: rgba(124,58,237,.4); }
.feature-icon { font-size: 1.5rem; flex-shrink: 0; }
.feature-body h3 { font-size: .95rem; font-weight: 600; margin-bottom: .4rem; display: flex; align-items: center; gap: .5rem; flex-wrap: wrap; }
.feature-body p { font-size: .85rem; color: var(--muted); line-height: 1.5; }
.badge-new { font-size: .65rem; font-weight: 700; background: rgba(16,185,129,.15); color: var(--green); border: 1px solid rgba(16,185,129,.3); padding: .1rem .4rem; border-radius: 4px; }

/* Install */
.install-steps { display: flex; flex-direction: column; gap: 2rem; }
.install-step { display: grid; grid-template-columns: 2.5rem 1fr; gap: 1.25rem; align-items: flex-start; }
.step-num { width: 2.5rem; height: 2.5rem; border-radius: 50%; background: var(--accent); color: #fff; display: flex; align-items: center; justify-content: center; font-weight: 700; font-size: 1rem; flex-shrink: 0; }
.step-content h3 { font-size: 1.05rem; font-weight: 600; margin-bottom: .5rem; }
.step-content > p { font-size: .9rem; color: var(--muted); margin-bottom: .75rem; }
pre { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem 1.25rem; font-family: var(--mono); font-size: .8rem; overflow-x: auto; line-height: 1.7; }
.code-cmd { color: var(--accent2); }
.code-comment { color: var(--muted); }
.launcher-features { display: flex; flex-direction: column; gap: .4rem; margin-top: .75rem; }
.lf-item { display: flex; align-items: center; gap: .6rem; font-size: .85rem; color: var(--muted); }
.lf-icon { font-size: 1rem; }

/* Install cases */
.install-cases { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1rem; margin-top: .75rem; }
.install-case { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; }
.case-header { display: flex; align-items: center; gap: .6rem; margin-bottom: .6rem; }
.case-icon { font-size: 1.2rem; }
.case-header strong { font-size: .95rem; }
.install-case > p { font-size: .85rem; color: var(--muted); margin-bottom: .6rem; }
.case-steps { padding-left: 1.2rem; display: flex; flex-direction: column; gap: .3rem; font-size: .82rem; color: var(--muted); }

/* Commands list */
.commands-list { display: flex; flex-wrap: wrap; gap: .5rem; margin-top: .5rem; }
.cmd-tag { background: var(--bg3); border: 1px solid var(--border); color: var(--accent2); font-family: var(--mono); font-size: .78rem; padding: .25rem .6rem; border-radius: 4px; }

/* Roadmap */
.roadmap-source { font-size: .85rem; color: var(--muted); margin-top: .25rem; }
.roadmap-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.roadmap-loading { color: var(--muted); font-size: .9rem; padding: 2rem; text-align: center; grid-column: 1/-1; }
.roadmap-error  { color: var(--red); font-size: .85rem; padding: 2rem; text-align: center; grid-column: 1/-1; }
.roadmap-col { background: var(--bg3); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; }
.roadmap-col-header { padding: 1rem 1.25rem; border-bottom: 1px solid var(--border); display: flex; align-items: center; gap: .625rem; font-weight: 600; font-size: .9rem; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; flex-shrink: 0; }
.status-done   { background: var(--green); }
.status-inprog { background: var(--yellow); }
.status-plan   { background: var(--muted); }
.roadmap-items { padding: .75rem 1.25rem; display: flex; flex-direction: column; gap: .75rem; }
.roadmap-item { display: flex; align-items: flex-start; gap: .625rem; font-size: .875rem; }
.roadmap-item-icon { flex-shrink: 0; margin-top: .1rem; font-size: .75rem; }
.roadmap-item-title { color: var(--text); line-height: 1.4; }
.roadmap-item-num { font-family: var(--mono); font-size: .7rem; color: var(--muted); }
.milestone-progress { padding: .5rem 1.25rem 1rem; }
.milestone-progress-bar { height: 4px; background: var(--bg2); border-radius: 2px; overflow: hidden; margin-bottom: .3rem; }
.milestone-progress-fill { height: 100%; background: var(--green); border-radius: 2px; transition: width .5s; }
.milestone-progress-label { font-size: .72rem; color: var(--muted); }

/* Footer */
footer { background: var(--bg2); border-top: 1px solid var(--border); padding: 2rem 0; text-align: center; font-size: .85rem; color: var(--muted); }
footer a { color: var(--accent2); }
.version-tag { font-family: var(--mono); }

/* Responsive */
@media (max-width: 640px) {
  .nav-links { display: none; }
  .hero-ctas { flex-direction: column; align-items: center; }
  .install-step { grid-template-columns: 1fr; }
  .step-num { display: none; }
  .pipeline-parallel { grid-template-columns: 1fr; }
  .parallel-sep { display: none; }
  .label-chain { gap: .25rem; }
  .label-arrow { display: none; }
}