/* ============================================================
   theme-base.css — Univers spatial MathsPrime pour les pages
   hors exercices (accueil, liste des exercices, notes, compte…).
   Même ADN que theme-mission.css : espace sombre, console néon
   cyan, or pour l'action et la récompense, lisibilité d'abord.
   ============================================================ */

:root {
    --space:  #050816;
    --panel:  rgba(14, 22, 56, .88);
    --panel2: #0e1638;
    --neon:   #22d3ee;
    --gold:   #f5c842;
    --gold-dk:#c9961a;
    --hot:    #ff4d6d;
    --ok:     #3ef08a;
    --text:   #e6ecff;
    --muted:  #aebae8;
    --line:   rgba(34, 211, 238, .28);
    --hud:    'Orbitron', 'Nunito', sans-serif;
    --read:   'Nunito', Arial, sans-serif;
}

* { box-sizing: border-box; }
html, body { overflow-x: hidden; max-width: 100%; }

body.theme-base {
    margin: 0;
    min-height: 100vh;
    font-family: var(--read);
    color: var(--text);
    text-align: center;
    line-height: 1.5;
    background:
        radial-gradient(ellipse 70% 50% at 15% 0%,   rgba(70, 60, 200, .35) 0%, transparent 60%),
        radial-gradient(ellipse 60% 45% at 95% 100%, rgba(160, 40, 160, .25) 0%, transparent 60%),
        radial-gradient(ellipse 40% 30% at 85% 15%,  rgba(34, 211, 238, .12) 0%, transparent 60%),
        var(--space);
    background-attachment: fixed;
    background-color: var(--space);
}
/* Étoiles en parallaxe */
body.theme-base::before,
body.theme-base::after {
    content: '';
    position: fixed;
    inset: 0;
    z-index: -1;
    pointer-events: none;
}
body.theme-base::before {
    background-image:
        radial-gradient(1px 1px at 20px 30px,   #fff 50%, transparent 51%),
        radial-gradient(1px 1px at 120px 90px,  rgba(255,255,255,.8) 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 210px 160px, #9be7ff 50%, transparent 51%),
        radial-gradient(1px 1px at 300px 40px,  #fff 50%, transparent 51%),
        radial-gradient(1px 1px at 260px 230px, rgba(255,255,255,.7) 50%, transparent 51%),
        radial-gradient(2px 2px at 60px 210px,  #ffe9a8 50%, transparent 51%);
    background-size: 340px 260px;
    animation: bsStars 140s linear infinite;
}
body.theme-base::after {
    opacity: .55;
    background-image:
        radial-gradient(1px 1px at 80px 60px,   #fff 50%, transparent 51%),
        radial-gradient(1px 1px at 400px 300px, #c9b8ff 50%, transparent 51%),
        radial-gradient(1.5px 1.5px at 250px 120px, #fff 50%, transparent 51%);
    background-size: 520px 400px;
    animation: bsStars2 260s linear infinite;
}
@keyframes bsStars  { to { background-position: 0 1040px; } }
@keyframes bsStars2 { to { background-position: 0 1200px; } }

/* ---------- Header commun ---------- */
body.theme-base .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: center;
    padding: 12px 20px;
    background: rgba(5, 8, 22, .7);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--line);
}
body.theme-base .header-content {
    display: flex; align-items: center; justify-content: space-between;
    width: 100%; max-width: 1100px; gap: 16px;
}
body.theme-base .brand-soft { display: inline-flex; align-items: center; gap: 8px; text-decoration: none; }
body.theme-base .brand-soft-logo { height: 38px; width: 38px; border-radius: 11px; object-fit: cover; display: block; }
body.theme-base .brand-soft-name { font-family: var(--read); font-weight: 900; font-size: clamp(1.25rem, 3.2vw, 1.6rem); color: #fff; letter-spacing: -.02em; }
body.theme-base .brand-soft-accent { color: var(--gold); }
body.theme-base .header-nav { display: flex; align-items: center; gap: 6px; }
body.theme-base .header-nav-link {
    font-family: var(--hud); font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: var(--text); background: none; border: 0; cursor: pointer;
    padding: 10px 14px; border-radius: 10px; text-decoration: none;
}
body.theme-base .header-nav-link:hover { background: rgba(34,211,238,.1); color: var(--neon); }
body.theme-base .header-nav-cta {
    font-family: var(--hud); font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: #0B1A4A; text-decoration: none; padding: 11px 18px; border-radius: 12px;
    background: linear-gradient(180deg, #ffd85a, #f5a623);
    box-shadow: 0 4px 0 #a86a0a;
}
body.theme-base .hamburger-btn {
    display: flex; flex-direction: column; justify-content: center; align-items: center; gap: 5px;
    width: 46px; height: 46px; padding: 0; cursor: pointer;
    background: rgba(34,211,238,.08); border: 1.5px solid var(--line); border-radius: 12px;
}
body.theme-base .hamburger-btn span { display: block; width: 22px; height: 2.5px; border-radius: 3px; background: var(--neon); }
.hide-desktop { display: none !important; }
@media (max-width: 768px) {
    .nav-desktop { display: none !important; }
    .hide-desktop { display: flex !important; }
}

/* Les variables de styleheader.css (header commun) passent en mode spatial */
body.theme-base {
    --hdr-bg: #050816; --hdr-bg2: #0e1638; --hdr-card: #0e1638; --hdr-blue: #22d3ee;
    --hdr-text-head: #e6ecff; --hdr-text-muted: #aebae8; --hdr-border: rgba(34,211,238,.28);
}
body.theme-base .site-header { min-height: 0; color: var(--text); }
body.theme-base .header-nav button.header-nav-link { font-family: var(--hud); }
body.theme-base .hamburger-btn { transition: transform .25s ease, box-shadow .25s ease; flex-shrink: 0; z-index: 1100; }
body.theme-base .hamburger-btn:hover { box-shadow: 0 0 16px rgba(34,211,238,.35); }
body.theme-base .hamburger-btn span { transition: transform .3s ease, opacity .3s ease; }
body.theme-base .hamburger-btn.open span:nth-child(1) { transform: translateY(7.5px) rotate(45deg); }
body.theme-base .hamburger-btn.open span:nth-child(2) { opacity: 0; }
body.theme-base .hamburger-btn.open span:nth-child(3) { transform: translateY(-7.5px) rotate(-45deg); }

/* Menu latéral (structure + couleurs : plus besoin de stylehome.css) */
body.theme-base .menu-overlay {
    position: fixed; inset: 0; z-index: 1200;
    background: rgba(2,4,14,.6); backdrop-filter: blur(3px);
    opacity: 0; visibility: hidden; transition: opacity .3s ease, visibility .3s ease;
}
body.theme-base .menu-overlay.open { opacity: 1; visibility: visible; }
body.theme-base .side-menu {
    position: fixed; top: 0; right: 0; height: 100%; width: 280px; max-width: 82vw; z-index: 1300;
    display: flex; flex-direction: column; padding-top: 70px; overflow-y: auto;
    background: linear-gradient(180deg, #0c1438, #050816);
    border-left: 1px solid var(--line);
    transform: translateX(100%); transition: transform .32s cubic-bezier(.4,0,.2,1);
}
body.theme-base .side-menu.open { transform: translateX(0); box-shadow: -10px 0 40px rgba(0,0,0,.6); }
body.theme-base .side-menu-close {
    position: absolute; top: 14px; left: 16px; width: 38px; height: 38px; border: 0; border-radius: 50%;
    background: rgba(255,255,255,.08); color: #fff; font-size: 22px; line-height: 1; cursor: pointer;
    transition: background .25s ease, transform .25s ease;
}
body.theme-base .side-menu-close:hover { background: rgba(255,77,109,.8); transform: rotate(90deg); }
body.theme-base .side-menu ul { list-style: none; margin: 0; padding: 10px 0; display: flex; flex-direction: column; }
body.theme-base .side-menu ul li { margin: 0; }
body.theme-base .side-menu ul li a,
body.theme-base .side-menu ul li.nav-btn {
    display: flex; align-items: center; padding: 16px 26px; cursor: pointer; text-decoration: none;
    font-family: var(--hud); font-size: 12px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase;
    color: var(--text); border-right: 3px solid transparent;
    transition: background .25s ease, border-color .25s ease, padding-right .25s ease;
}
body.theme-base .side-menu ul li a::before,
body.theme-base .side-menu ul li.nav-btn::before { content: '▸'; color: var(--neon); margin-right: 12px; }
body.theme-base .side-menu ul li a:hover,
body.theme-base .side-menu ul li.nav-btn:hover { background: rgba(34,211,238,.08); border-right-color: var(--neon); padding-right: 32px; }

/* ---------- Éléments communs ---------- */
.wrap { max-width: 980px; width: 92%; margin: 0 auto; }

.hud-tag {
    display: inline-flex; align-items: center; gap: 8px;
    font-family: var(--hud); font-size: 11px; font-weight: 700; letter-spacing: .2em; text-transform: uppercase;
    color: var(--neon); background: rgba(34,211,238,.08); border: 1px solid var(--line);
    padding: 6px 14px; border-radius: 999px;
}
.hud-tag .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--ok); box-shadow: 0 0 8px var(--ok); animation: bsBlink 1.4s ease-in-out infinite; }
@keyframes bsBlink { 50% { opacity: .25; } }

.page-title {
    font-family: var(--hud); font-weight: 900; color: #fff;
    font-size: clamp(1.5rem, 5vw, 2.4rem); line-height: 1.15; margin: 14px 0 6px;
}
.page-title span {
    background: linear-gradient(90deg, var(--gold), #ffb347);
    -webkit-background-clip: text; background-clip: text; color: transparent;
    filter: drop-shadow(0 0 12px rgba(245,200,66,.35));
}
.page-sub { margin: 0; color: var(--muted); font-size: 16px; font-weight: 700; }

/* Panneau-console */
.panel {
    position: relative;
    background:
        repeating-linear-gradient(0deg, rgba(255,255,255,.018) 0 1px, transparent 1px 3px),
        linear-gradient(180deg, rgba(22,32,78,.94), rgba(9,14,38,.96));
    border: 1px solid rgba(34,211,238,.35);
    border-radius: 18px;
    box-shadow: 0 0 40px rgba(34,211,238,.10), 0 24px 60px rgba(0,0,0,.5);
    overflow: hidden;
    text-align: left;
}
.panel-bar {
    display: flex; justify-content: space-between; align-items: center; gap: 10px;
    padding: 11px 18px;
    background: linear-gradient(90deg, rgba(34,211,238,.16), rgba(34,211,238,.03));
    border-bottom: 1px solid rgba(34,211,238,.25);
    font-family: var(--hud); font-size: 11px; font-weight: 700; letter-spacing: .16em; text-transform: uppercase;
    color: var(--neon);
}
.panel-bar .dots { display: inline-flex; gap: 5px; margin-right: 8px; vertical-align: middle; }
.panel-bar .dots i { width: 7px; height: 7px; border-radius: 50%; display: block; }
.panel-bar .dots i:nth-child(1) { background: var(--hot); }
.panel-bar .dots i:nth-child(2) { background: var(--gold); }
.panel-bar .dots i:nth-child(3) { background: var(--ok); }
.panel-bar a { color: var(--gold); text-decoration: none; letter-spacing: .1em; }
.panel-bar a:hover { text-decoration: underline; }
.panel-body { padding: 18px 20px 20px; }

/* Boutons */
.btn {
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    font-family: var(--hud); font-weight: 900; letter-spacing: .1em; text-transform: uppercase;
    text-decoration: none; cursor: pointer; border: 0; border-radius: 14px;
    transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-gold {
    color: #0B1A4A; background: linear-gradient(180deg, #ffd85a, #f5a623);
    box-shadow: 0 5px 0 #a86a0a, 0 0 26px rgba(245,200,66,.35);
}
.btn-gold:hover { transform: translateY(-2px); box-shadow: 0 7px 0 #a86a0a, 0 0 34px rgba(245,200,66,.55); }
.btn-neon {
    color: var(--neon); background: rgba(34,211,238,.06);
    border: 1.5px solid rgba(34,211,238,.6);
}
.btn-neon:hover { background: rgba(34,211,238,.14); box-shadow: 0 0 18px rgba(34,211,238,.35); }

/* Bouton de lancement (version E) — réservé au SEUL bouton « Reprendre la mission »
   or + bleu marine, fusée bleue du logo, reflet qui balaie, halo qui respire */
.btn-launch {
    position: relative; overflow: hidden;
    color: #0B1A4A;
    background: linear-gradient(180deg, #ffe07a 0%, #f7b733 100%);
    box-shadow: 0 5px 0 #a86a0a, 0 0 26px rgba(245,200,66,.4);
    animation: bsRespire 2.6s ease-in-out infinite;
}
.btn-launch i { color: #1E40AF; }
.btn-launch::after {
    content: ''; position: absolute; top: 0; bottom: 0; width: 45%; left: -60%;
    background: linear-gradient(100deg, transparent, rgba(255,255,255,.65), transparent);
    transform: skewX(-20deg); animation: bsReflet 3.2s ease-in-out infinite;
    pointer-events: none;
}
.btn-launch:hover { transform: translateY(-2px); }
@keyframes bsReflet  { 0%, 55% { left: -60%; } 100% { left: 130%; } }
@keyframes bsRespire { 50% { box-shadow: 0 5px 0 #a86a0a, 0 0 42px rgba(245,200,66,.7); } }
@media (prefers-reduced-motion: reduce) { .btn-launch, .btn-launch::after { animation: none !important; } }

/* Footer */
.site-footer {
    margin-top: 60px; padding: 26px 20px;
    background: rgba(5,8,22,.85); border-top: 1px solid var(--line);
    color: var(--muted); font-size: 13px; text-align: center;
}
.site-footer .footer-inner { max-width: 800px; margin: 0 auto; }
.site-footer .footer-logo { font-family: var(--hud); font-weight: 900; font-size: 15px; color: var(--gold); letter-spacing: .14em; text-transform: uppercase; margin-bottom: 6px; }
.site-footer a { color: var(--muted); text-decoration: none; transition: color .2s; }
.site-footer a:hover { color: var(--gold); }
.site-footer .footer-divider { border: 0; border-top: 1px solid var(--line); margin: 12px auto; max-width: 300px; }
.site-footer .footer-copy { margin: 0; color: var(--muted); font-size: 13px; }
.site-footer .footer-cgv { margin-bottom: 8px; }

.coin-icon { width: 1.2em; height: 1.2em; margin-left: 4px; vertical-align: middle; display: inline-block; }

@media (prefers-reduced-motion: reduce) {
    body.theme-base::before, body.theme-base::after, .hud-tag .dot { animation: none !important; }
}