:root{
  --bg-1:#0e0b26;
  --bg-2:#1e1b4b;
  --bg-3:#3b1e63;
  --glass-bg:rgba(255,255,255,0.07);
  --glass-border:rgba(255,255,255,0.16);
  --glass-bg-strong:rgba(255,255,255,0.12);
  --text-primary:#f6f5ff;
  --text-secondary:#bcb8e6;
  --text-muted:#8783b3;
  --accent:#0A84FF;
  --accent-2:#BF5AF2;
  --accent-strong:#a5b4fc;
  --gradient-accent:linear-gradient(135deg,#0A84FF 0%,#BF5AF2 55%,#FF375F 100%);
  --green:#32D74B;
  --amber:#FF9F0A;
  --pink:#FF375F;
  --cyan:#64D2FF;
  --radius-lg:22px;
  --radius-md:14px;
  --radius-sm:10px;
}

*{box-sizing:border-box;}

/* [hidden] a une spécificité trop faible face à nos règles `display:flex` (.modal-overlay,
   .install-banner) — sans ce !important, ces éléments restent visibles même avec l'attribut
   hidden posé, puisque la déclaration display la plus tardive dans la cascade gagne. */
[hidden]{display:none!important;}

html,body{
  margin:0;
  min-height:100%;
  background:var(--bg-1);
  color:var(--text-primary);
  font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;
  -webkit-font-smoothing:antialiased;
}

h1,h2,h3,
.week-tag,
.stat-value,
.score,
.concept-tag{
  font-family:'Sora','Plus Jakarta Sans',sans-serif;
}

.bg-glow{
  position:fixed;
  inset:0;
  z-index:-1;
  background:
    radial-gradient(48% 38% at 12% -5%, rgba(10,132,255,0.45), transparent 62%),
    radial-gradient(46% 36% at 92% 8%, rgba(191,90,242,0.4), transparent 60%),
    radial-gradient(50% 42% at 100% 55%, rgba(255,55,95,0.22), transparent 65%),
    radial-gradient(60% 50% at 8% 60%, rgba(100,210,255,0.18), transparent 65%),
    radial-gradient(75% 65% at 50% 105%, rgba(59,30,99,0.65), transparent 72%),
    linear-gradient(180deg, var(--bg-1), var(--bg-2) 55%, var(--bg-1));
  animation:bg-drift 26s ease-in-out infinite alternate;
}

@keyframes bg-drift{
  0%{filter:hue-rotate(0deg) saturate(1);}
  100%{filter:hue-rotate(-12deg) saturate(1.08);}
}

@media (prefers-reduced-motion: reduce){
  .bg-glow{animation:none;}
}

.app{
  max-width:640px;
  margin:0 auto;
  padding:20px 16px 48px;
  padding-bottom:calc(48px + env(safe-area-inset-bottom));
}

.glass-card{
  position:relative;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-lg);
  backdrop-filter:blur(28px) saturate(140%);
  -webkit-backdrop-filter:blur(28px) saturate(140%);
  box-shadow:0 12px 40px rgba(6,4,26,0.4), inset 0 1px 0 rgba(255,255,255,0.1);
  overflow:hidden;
  transition:transform 0.25s cubic-bezier(.2,.8,.2,1), box-shadow 0.25s ease;
}
.glass-card::before{
  content:'';
  position:absolute;
  inset:0;
  border-radius:inherit;
  padding:1px;
  background:linear-gradient(160deg, rgba(255,255,255,0.35), rgba(255,255,255,0) 40%);
  -webkit-mask:linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite:xor;
  mask-composite:exclude;
  pointer-events:none;
}

/* Topbar */
.topbar{
  display:flex;
  align-items:flex-start;
  justify-content:space-between;
  gap:12px;
  margin-bottom:18px;
}
.week-tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  letter-spacing:0.06em;
  text-transform:uppercase;
  color:var(--accent-strong);
  margin-bottom:4px;
}
.topbar-title h1{
  margin:0;
  font-size:24px;
  font-weight:700;
  letter-spacing:-0.01em;
}
.app-intro{
  margin:6px 0 0;
  font-size:12.5px;
  line-height:1.5;
  color:var(--text-secondary);
  max-width:44ch;
}
.site-footer{
  margin-top:32px;
  padding-top:16px;
  border-top:1px solid var(--glass-border);
  font-size:12px;
  color:var(--text-muted);
  text-align:center;
}
.site-footer a{
  color:var(--text-secondary);
  text-decoration:underline;
}
.icon-btn{
  flex-shrink:0;
  width:42px;
  height:42px;
  border-radius:50%;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  color:var(--text-primary);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  backdrop-filter:blur(10px);
}
.icon-btn svg{width:20px;height:20px;}
.icon-btn:active{transform:scale(0.94);}
.icon-btn.active{color:var(--amber);border-color:rgba(251,191,36,0.5);}

.install-banner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:12px 16px;
  margin-bottom:16px;
  font-size:12.5px;
  color:var(--text-secondary);
  line-height:1.4;
}
.install-btn{
  flex-shrink:0;
  border:none;
  background:var(--gradient-accent);
  color:#fff;
  font-size:12.5px;
  font-weight:700;
  padding:8px 16px;
  border-radius:999px;
  cursor:pointer;
  box-shadow:0 4px 14px rgba(10,132,255,0.3);
}
.install-btn:active{transform:scale(0.96);}

/* Stats row */
.stats-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:10px;
  margin-bottom:20px;
}
.stat-card{
  padding:14px 8px;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:2px;
  text-align:center;
}
.stat-value{
  font-size:24px;
  font-weight:800;
  background:var(--gradient-accent);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.stat-label{
  font-size:11px;
  color:var(--text-secondary);
  line-height:1.3;
}

/* Tabs */
.tabs{
  display:flex;
  gap:6px;
  padding:4px;
  background:var(--glass-bg);
  border:1px solid var(--glass-border);
  border-radius:999px;
  margin-bottom:20px;
}
.tab{
  flex:1;
  border:none;
  background:transparent;
  color:var(--text-secondary);
  font-size:14px;
  font-weight:600;
  padding:9px 0;
  border-radius:999px;
  cursor:pointer;
}
.tab{
  transition:color 0.2s ease;
}
.tab.active{
  background:var(--gradient-accent);
  color:#fff;
  box-shadow:0 4px 16px rgba(10,132,255,0.35);
}

.panel{display:none;flex-direction:column;gap:14px;}
.panel.active{display:flex;}

#digest-list, #quiz-list{display:flex;flex-direction:column;gap:14px;}

.filter-bar{
  padding:14px 16px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.filter-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
}
.filter-chip{
  border:1px solid var(--glass-border);
  background:var(--glass-bg-strong);
  color:var(--text-secondary);
  font-size:12.5px;
  font-weight:600;
  padding:7px 13px;
  border-radius:999px;
  cursor:pointer;
  transition:transform 0.15s ease;
}
.filter-chip:active{transform:scale(0.96);}
.filter-chip[data-active="true"]{
  background:var(--gradient-accent);
  color:#fff;
  border-color:transparent;
  box-shadow:0 4px 14px rgba(10,132,255,0.3);
}
.filter-score{
  display:flex;
  align-items:center;
  gap:8px;
  margin-left:auto;
  font-size:12px;
  color:var(--text-secondary);
}
.filter-score input[type="range"]{
  accent-color:var(--accent);
  width:100px;
}
.filter-score span{
  min-width:14px;
  font-weight:700;
  color:var(--text-primary);
}
.newsletter-link{
  align-self:flex-start;
  border:none;
  background:transparent;
  color:var(--accent-strong);
  font-size:12.5px;
  font-weight:600;
  text-decoration:none;
  display:inline-flex;
  align-items:center;
  gap:4px;
  cursor:pointer;
  padding:0;
  font-family:inherit;
}
.newsletter-link:hover{text-decoration:underline;}

/* Modal newsletter */
.modal-overlay{
  position:fixed;
  inset:0;
  z-index:100;
  background:rgba(6,4,20,0.7);
  backdrop-filter:blur(4px);
  display:flex;
  align-items:flex-end;
  justify-content:center;
}
@media (min-width:640px){
  .modal-overlay{align-items:center;}
}
.modal-box{
  width:100%;
  max-width:720px;
  height:85vh;
  max-height:85vh;
  background:var(--bg-2);
  border:1px solid var(--glass-border);
  border-radius:20px 20px 0 0;
  display:flex;
  flex-direction:column;
  overflow:hidden;
  box-shadow:0 -8px 40px rgba(0,0,0,0.5);
}
@media (min-width:640px){
  .modal-box{border-radius:20px; height:80vh;}
}
.modal-header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 16px;
  border-bottom:1px solid var(--glass-border);
  font-size:13px;
  font-weight:700;
  color:var(--text-primary);
  flex-shrink:0;
}
.modal-close{
  border:none;
  background:var(--glass-bg-strong);
  color:var(--text-primary);
  width:32px;
  height:32px;
  border-radius:50%;
  cursor:pointer;
  font-size:14px;
}
.modal-iframe{
  flex:1;
  width:100%;
  border:none;
  background:#fff;
}

.empty-state{
  text-align:center;
  color:var(--text-secondary);
  font-size:13.5px;
  line-height:1.6;
  padding:32px 16px;
}

/* Item cards */
.item-card{
  padding:18px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.item-badges{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
}
.badge{
  font-size:11px;
  font-weight:600;
  padding:3px 9px;
  border-radius:999px;
  letter-spacing:0.02em;
}
.badge-relance{
  background:rgba(251,191,36,0.16);
  color:var(--amber);
  border:1px solid rgba(251,191,36,0.35);
}
.badge-signal{
  background:rgba(244,114,182,0.16);
  color:var(--pink);
  border:1px solid rgba(244,114,182,0.35);
}
.badge-hors-radar{
  background:rgba(135,131,179,0.2);
  color:var(--text-secondary);
  border:1px solid rgba(135,131,179,0.35);
}
.item-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
}
.cat-pill{
  font-size:11px;
  font-weight:600;
  padding:4px 10px;
  border-radius:999px;
  background:rgba(255,255,255,0.08);
  color:var(--text-secondary);
}
.cat-ai{color:var(--cyan);background:rgba(34,211,238,0.14);}
.cat-crypto{color:var(--amber);background:rgba(251,191,36,0.14);}
.cat-mlops{color:var(--green);background:rgba(74,222,128,0.14);}
.cat-radar{color:var(--pink);background:rgba(244,114,182,0.14);}

.score{
  font-size:17px;
  font-weight:700;
  color:var(--accent-strong);
}
.score small{
  font-size:11px;
  font-weight:500;
  color:var(--text-muted);
}

.item-card h2{
  margin:0;
  font-size:17px;
  line-height:1.35;
  font-weight:700;
}
.quiz-card h3{
  margin:0;
  font-size:16px;
  line-height:1.4;
  font-weight:700;
}

.source{
  margin:0;
  font-size:12.5px;
  color:var(--text-muted);
}
.justification{
  margin:0;
  font-size:13.5px;
  color:var(--text-secondary);
  line-height:1.5;
}

.conseil{
  border-top:1px solid var(--glass-border);
  padding-top:10px;
}
.conseil summary{
  cursor:pointer;
  font-size:13px;
  font-weight:600;
  color:var(--accent-strong);
  list-style:none;
}
.conseil summary::-webkit-details-marker{display:none;}
.conseil summary::before{
  content:'+ ';
}
.conseil[open] summary::before{
  content:'– ';
}
.conseil p{
  margin:10px 0 0;
  font-size:13.5px;
  line-height:1.55;
  color:var(--text-primary);
}

.mark-read-btn{
  align-self:flex-start;
  margin-top:2px;
  border:1px solid var(--glass-border);
  background:transparent;
  color:var(--text-secondary);
  font-size:12.5px;
  font-weight:600;
  padding:7px 14px;
  border-radius:999px;
  cursor:pointer;
}
.mark-read-btn:active{transform:scale(0.96);}
.item-card.read .mark-read-btn{
  color:var(--green);
  border-color:rgba(74,222,128,0.4);
}

/* Quiz */
.quiz-card{
  padding:18px;
  display:flex;
  flex-direction:column;
  gap:12px;
}
.concept-tag{
  align-self:flex-start;
  font-size:10.5px;
  font-weight:700;
  letter-spacing:0.04em;
  text-transform:uppercase;
  color:var(--accent-strong);
  background:rgba(129,140,248,0.16);
  padding:4px 9px;
  border-radius:6px;
}
.reveal-btn{
  align-self:flex-start;
  border:none;
  background:var(--gradient-accent);
  color:#fff;
  font-size:13px;
  font-weight:700;
  padding:9px 18px;
  border-radius:999px;
  cursor:pointer;
  box-shadow:0 4px 16px rgba(10,132,255,0.35);
  transition:transform 0.2s cubic-bezier(.2,.8,.2,1);
}
.reveal-btn:active{transform:scale(0.96);}
.answer{
  display:none;
  flex-direction:column;
  gap:14px;
  border-top:1px solid var(--glass-border);
  padding-top:12px;
}
.answer.visible{display:flex;}
.answer p{
  margin:0;
  font-size:13.5px;
  line-height:1.6;
  color:var(--text-primary);
}
.self-eval{
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.self-eval span{
  font-size:12.5px;
  color:var(--text-secondary);
  margin-right:2px;
}
.eval-btn{
  border:1px solid var(--glass-border);
  background:var(--glass-bg-strong);
  color:var(--text-primary);
  font-size:12.5px;
  font-weight:600;
  padding:7px 13px;
  border-radius:999px;
  cursor:pointer;
}
.eval-btn:active{transform:scale(0.96);}
.eval-yes.selected{
  background:rgba(74,222,128,0.2);
  border-color:rgba(74,222,128,0.5);
  color:var(--green);
}
.eval-no.selected{
  background:rgba(244,114,182,0.2);
  border-color:rgba(244,114,182,0.5);
  color:var(--pink);
}

@media (hover:hover){
  .item-card:hover, .quiz-card:hover{
    transform:translateY(-2px);
    box-shadow:0 16px 48px rgba(6,4,26,0.5), inset 0 1px 0 rgba(255,255,255,0.12);
  }
}

@media (min-width:480px){
  .app{padding-top:32px;}
  .topbar-title h1{font-size:27px;}
}