/* ============================================================
   sommeil.css — Nuit Cosmique
   Palette : #0d0a1e indigo nuit | #c4b5fd lavande | #fef3c7 lune | #fda4af rose doux
   Polices  : Cormorant Garamond (display rêveur) + Quicksand (corps doux) + Space Mono
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,300;0,400;0,600;1,300;1,400;1,600&family=Quicksand:wght@400;500;600&family=Space+Mono:ital,wght@0,400;1,400&display=swap');

:root {
  --night:   #0d0a1e;
  --night2:  #131024;
  --night3:  #1a1630;
  --card:    #110e22;
  --border:  #2a234a;
  --border2: #372f5e;
  --lavender:#c4b5fd;
  --lavender2:#a78bfa;
  --lavender3:#7c3aed;
  --moon:    #fef3c7;
  --moon2:   #fde68a;
  --rose:    #fda4af;
  --rose2:   #fb7185;
  --teal:    #5eead4;
  --blue:    #93c5fd;
  --text:    #9d8ec0;
  --text-hi: #ede9fe;
  --muted:   #4a3d72;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }

body {
  font-family: 'Quicksand', system-ui, sans-serif;
  background: var(--night);
  color: var(--text);
  line-height: 1.85;
  font-size: 1.02rem;
  overflow-x: hidden;
}

/* ── STAR FIELD ───────────────────────────────── */
body::before {
  content: '';
  position: fixed; inset: 0;
  background:
    radial-gradient(1px 1px at 10% 15%, rgba(255,255,255,.7) 0%, transparent 100%),
    radial-gradient(1px 1px at 25% 35%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 10%, rgba(255,255,255,.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 55% 50%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 70% 20%, rgba(255,255,255,.8) 0%, transparent 100%),
    radial-gradient(1px 1px at 85% 40%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(1px 1px at 15% 65%, rgba(255,255,255,.4) 0%, transparent 100%),
    radial-gradient(1px 1px at 90% 70%, rgba(255,255,255,.6) 0%, transparent 100%),
    radial-gradient(1px 1px at 50% 80%, rgba(255,255,255,.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 30% 90%, rgba(255,255,255,.5) 0%, transparent 100%),
    radial-gradient(ellipse 60% 40% at 50% 0%, rgba(124,58,237,.12) 0%, transparent 70%),
    radial-gradient(ellipse 80% 60% at 80% 100%, rgba(196,181,253,.06) 0%, transparent 70%);
  pointer-events: none; z-index: 0;
  animation: twinkle 8s ease-in-out infinite alternate;
}
@keyframes twinkle { 0%{opacity:.8} 50%{opacity:1} 100%{opacity:.7} }

/* ── MOON ─────────────────────────────────────── */
body::after {
  content: '';
  position: fixed;
  top: 60px; right: 80px;
  width: 100px; height: 100px;
  background: radial-gradient(circle at 35% 35%, var(--moon2), var(--moon) 60%, rgba(254,243,199,.3));
  border-radius: 50%;
  box-shadow: 0 0 40px rgba(254,243,199,.2), 0 0 80px rgba(254,243,199,.08);
  pointer-events: none; z-index: 0;
  animation: moon-glow 6s ease-in-out infinite alternate;
}
@keyframes moon-glow {
  0%{ box-shadow: 0 0 40px rgba(254,243,199,.2), 0 0 80px rgba(254,243,199,.08); }
  100%{ box-shadow: 0 0 60px rgba(254,243,199,.3), 0 0 120px rgba(254,243,199,.12); }
}

/* ── PROGRESS BAR ─────────────────────────────── */
#progress-bar {
  position: fixed; top: 0; left: 0;
  height: 2px; width: 0%;
  background: linear-gradient(90deg, var(--lavender3), var(--lavender), var(--moon));
  z-index: 1000;
  box-shadow: 0 0 8px var(--lavender);
  transition: width .1s linear;
}

/* ── NAV ──────────────────────────────────────── */
nav {
  position: fixed; top: 2px; left: 0; right: 0; z-index: 900;
  background: rgba(13,10,30,.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border2);
  display: flex; align-items: center; gap: 2px;
  padding: 0 32px; height: 54px; overflow-x: auto;
}
.nav-brand {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 600; font-style: italic; font-size: 1.2rem;
  color: var(--lavender); text-decoration: none;
  letter-spacing: .04em; margin-right: 24px; flex-shrink: 0;
  display: flex; align-items: center; gap: 8px;
}
.nav-brand::before { content: '◗'; color: var(--moon); font-size: .9rem; font-style: normal; }
nav a:not(.nav-brand) {
  font-family: 'Space Mono', monospace;
  font-size: .65rem; color: var(--muted);
  text-decoration: none; padding: 5px 10px;
  border-radius: 999px; white-space: nowrap;
  transition: color .2s, background .2s; letter-spacing: .04em;
}
nav a:not(.nav-brand):hover, nav a.active {
  color: var(--lavender); background: rgba(196,181,253,.08);
}

/* ── HERO ─────────────────────────────────────── */
.hero {
  position: relative; padding: 114px 56px 80px;
  overflow: hidden; z-index: 1;
  border-bottom: 1px solid var(--border);
}
.hero-inner { max-width: 820px; position: relative; z-index: 2; }

.hero-quote {
  font-family: 'Cormorant Garamond', serif;
  font-style: italic; font-size: .95rem;
  color: var(--muted); margin-bottom: 20px;
  padding-left: 16px; border-left: 2px solid var(--lavender3);
  max-width: 500px;
}
.hero h1 {
  font-family: 'Cormorant Garamond', serif;
  font-weight: 300; font-style: italic;
  font-size: clamp(4rem, 9vw, 8rem);
  line-height: .88; color: var(--text-hi); margin-bottom: 22px;
  letter-spacing: -.02em;
}
.hero h1 .glow { color: var(--lavender); text-shadow: 0 0 40px rgba(196,181,253,.4); }
.hero h1 .moon-word { color: var(--moon); text-shadow: 0 0 30px rgba(254,243,199,.3); }

.hero p.lead { font-size: 1.06rem; color: var(--text); max-width: 620px; line-height: 1.85; font-weight: 500; }

/* ── STATS ────────────────────────────────────── */
.kpi-row { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 32px; }
.kpi {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 12px; padding: 14px 20px; flex: 1; min-width: 130px;
  position: relative; overflow: hidden;
}
.kpi::after {
  content: ''; position: absolute; bottom:0; left:0; right:0;
  height: 2px; background: linear-gradient(90deg, var(--lavender3), var(--lavender));
}
.kpi .kv {
  font-family: 'Cormorant Garamond', serif; font-weight: 600;
  font-size: 1.9rem; color: var(--lavender); line-height: 1; display: block;
}
.kpi .kl { font-family:'Space Mono',monospace; font-size:.61rem; color:var(--muted); letter-spacing:.06em; text-transform:uppercase; margin-top:4px; }

/* ── LAYOUT ───────────────────────────────────── */
.container { max-width: 1240px; margin: 0 auto; padding: 62px 40px; position: relative; z-index: 1; }
.two-col { display: grid; grid-template-columns: 1fr 290px; gap: 36px; }
@media (max-width: 940px) { .two-col { grid-template-columns: 1fr; } }

/* ── SECTIONS ─────────────────────────────────── */
.section { margin-bottom: 68px; opacity: 0; transform: translateY(22px); transition: opacity .65s ease, transform .65s ease; }
.section.visible { opacity: 1; transform: none; }
.sec-label { font-family:'Space Mono',monospace; font-size:.64rem; letter-spacing:.16em; text-transform:uppercase; color:var(--rose2); margin-bottom:8px; }
.section h2 {
  font-family: 'Cormorant Garamond', serif; font-weight: 600;
  font-size: 2.2rem; color: var(--text-hi); font-style: italic;
  padding-bottom: 14px; border-bottom: 1px solid var(--border2); margin-bottom: 22px; position: relative;
}
.section h2::after { content:''; position:absolute; bottom:-1px; left:0; height:2px; width:56px; background:var(--lavender); }
.section h3 { font-family:'Cormorant Garamond',serif; font-weight:600; font-size:1.35rem; color:var(--moon); margin:24px 0 10px; }

/* ── SLEEP PHASE VISUAL ───────────────────────── */
.phase-strip {
  display: flex; gap: 0; margin: 20px 0;
  border-radius: 8px; overflow: hidden;
  border: 1px solid var(--border2);
}
.ph {
  flex: 1; padding: 16px 12px; text-align: center;
  transition: filter .2s;
  position: relative;
}
.ph:hover { filter: brightness(1.2); }
.ph.s1   { background: rgba(196,181,253,.07); border-right:1px solid var(--border); }
.ph.s2   { background: rgba(196,181,253,.12); border-right:1px solid var(--border); }
.ph.s3   { background: rgba(124,58,237,.15);  border-right:1px solid var(--border); }
.ph.rem  { background: rgba(254,243,199,.08); }
.ph-name { font-family:'Cormorant Garamond',serif; font-weight:600; font-size:1rem; color:var(--text-hi); display:block; margin-bottom:4px; }
.ph.rem .ph-name { color:var(--moon); }
.ph-detail { font-size:.78rem; color:var(--text); line-height:1.5; }
.ph-depth { font-family:'Space Mono',monospace; font-size:.64rem; color:var(--lavender); margin-top:6px; display:block; }

/* ── CARDS ────────────────────────────────────── */
.card {
  background: var(--card); border: 1px solid var(--border2);
  border-radius: 12px; padding: 18px 22px; margin-bottom: 14px;
  transition: border-color .2s, transform .2s;
}
.card:hover { border-color: rgba(196,181,253,.35); transform: translateY(-2px); }
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 13px; margin: 16px 0; }

/* ── BOX ──────────────────────────────────────── */
.box { border-radius: 10px; padding: 13px 17px; margin: 14px 0; border-left: 3px solid; font-size: .96rem; }
.box-lavender { background: rgba(196,181,253,.05); border-color: var(--lavender); }
.box-moon     { background: rgba(254,243,199,.05); border-color: var(--moon); }
.box-rose     { background: rgba(253,164,175,.05); border-color: var(--rose); }
.box-teal     { background: rgba(94,234,212,.05);  border-color: var(--teal); }
.box-alert    { background: rgba(251,113,133,.06); border-color: var(--rose2); }

/* ── TAG ──────────────────────────────────────── */
.tag { display:inline-block; padding:3px 10px; border-radius:999px; font-family:'Space Mono',monospace; font-size:.64rem; letter-spacing:.06em; text-transform:uppercase; margin-bottom:8px; }
.tag-lavender { background:rgba(196,181,253,.1); color:var(--lavender); border:1px solid rgba(196,181,253,.25); }
.tag-moon     { background:rgba(254,243,199,.1); color:var(--moon);     border:1px solid rgba(254,243,199,.25); }
.tag-rose     { background:rgba(253,164,175,.1); color:var(--rose);     border:1px solid rgba(253,164,175,.25); }
.tag-teal     { background:rgba(94,234,212,.1);  color:var(--teal);     border:1px solid rgba(94,234,212,.25);  }

/* ── TABLE ────────────────────────────────────── */
table { width:100%; border-collapse:collapse; margin:12px 0; font-size:.92rem; }
th { background:var(--night3); color:var(--lavender); font-family:'Space Mono',monospace; font-size:.66rem; letter-spacing:.08em; text-transform:uppercase; padding:9px 13px; text-align:left; border-bottom:1px solid var(--border2); }
td { padding:9px 13px; border-bottom:1px solid var(--border); color:var(--text); vertical-align:top; }
tr:hover td { background:rgba(196,181,253,.03); }

/* ── TIMELINE ─────────────────────────────────── */
.timeline { padding-left:28px; position:relative; }
.timeline::before { content:''; position:absolute; left:0; top:6px; bottom:6px; width:2px; background:linear-gradient(to bottom,var(--lavender3),var(--moon)); }
.tl-item { position:relative; margin-bottom:20px; }
.tl-item::before { content:''; position:absolute; left:-35px; top:7px; width:8px; height:8px; background:var(--lavender); border-radius:50%; border:2px solid var(--night); box-shadow:0 0 6px var(--lavender2); }
.tl-yr   { font-family:'Space Mono',monospace; font-size:.75rem; color:var(--rose2); }
.tl-who  { font-family:'Cormorant Garamond',serif; font-weight:600; color:var(--text-hi); font-size:1.05rem; font-style:italic; }
.tl-desc { font-size:.9rem; color:var(--text); }

/* ── SIDEBAR ──────────────────────────────────── */
.sidebar { position:sticky; top:68px; }
.sb-card { background:var(--card); border:1px solid var(--border2); border-radius:12px; padding:16px 18px; margin-bottom:12px; }
.sb-card h3 { font-family:'Cormorant Garamond',serif; font-weight:600; font-style:italic; font-size:1rem; color:var(--lavender); margin-bottom:10px; padding-bottom:8px; border-bottom:1px solid var(--border); }
.sb-toc a { display:block; padding:5px 8px; font-family:'Space Mono',monospace; font-size:.66rem; color:var(--muted); text-decoration:none; border-radius:999px; transition:color .2s,background .2s; }
.sb-toc a:hover, .sb-toc a.active { color:var(--lavender); background:rgba(196,181,253,.07); }

ul { padding-left:22px; } li { margin:5px 0; } ul li::marker { color:var(--lavender3); }
strong { color:var(--text-hi); font-weight:600; }
code { font-family:'Space Mono',monospace; background:var(--night3); color:var(--lavender); padding:2px 7px; border-radius:4px; font-size:.85em; }

#back-top { position:fixed; bottom:28px; right:28px; width:44px; height:44px; background:rgba(196,181,253,.15); border:1px solid var(--lavender); color:var(--lavender); border-radius:50%; cursor:pointer; font-size:1.1rem; display:flex; align-items:center; justify-content:center; opacity:0; pointer-events:none; transition:opacity .3s,transform .3s; z-index:800; font-family:'Cormorant Garamond',serif; font-weight:600; }
#back-top.visible { opacity:1; pointer-events:auto; }
#back-top:hover { transform:translateY(-4px); }

footer { border-top:1px solid var(--border); padding:26px 40px; text-align:center; color:var(--muted); font-family:'Space Mono',monospace; font-size:.7rem; letter-spacing:.06em; position:relative; z-index:1; }

@media (max-width:768px) { .hero { padding:88px 22px 50px; } .container { padding:36px 18px; } nav { padding:0 14px; } }