:root{--teal:#0f3d3e;--teal-2:#165456;--teal-3:#e6f0ef;--gold:#f3c969;--gold-2:#e4b13f;--ink:#1b1f23;--muted:#667177;--line:#e7e2d6;--bg:#f6f3ea;--danger:#b3261e;--sans:system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;--serif:ui-serif,Georgia,serif}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--ink);font-family:var(--sans);line-height:1.5;-webkit-text-size-adjust:100%}
body{padding-bottom:calc(68px + env(safe-area-inset-bottom));min-height:100vh}
body.reading{overflow:hidden;padding:0}body.sheet-open{overflow:hidden}
button{font:inherit;cursor:pointer}img{max-width:100%;display:block}a{color:var(--teal-2)}
.muted{color:var(--muted)}.center{text-align:center}.fine{font-size:.78rem;color:var(--muted);margin:.8rem 0 0}
.splash{min-height:100vh;display:grid;place-items:center}.spin{width:36px;height:36px;border:4px solid var(--teal-3);border-top-color:var(--teal);border-radius:50%;animation:s .8s linear infinite}@keyframes s{to{transform:rotate(360deg)}}

/* boutons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.4rem;border:0;border-radius:12px;padding:.7rem 1.1rem;font-weight:600;text-decoration:none;transition:transform .12s,background .15s}.btn:active{transform:scale(.97)}.btn[disabled]{opacity:.45;pointer-events:none}
.btn-sm{padding:.45rem .85rem;font-size:.85rem;border-radius:10px}.btn-lg{padding:.9rem 1.4rem;font-size:1.05rem}.btn-block{width:100%}
.btn-gold{background:var(--gold);color:#3a2a00}.btn-soft{background:var(--teal-3);color:var(--teal)}.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--ink)}.btn-danger{background:#fdecea;color:var(--danger)}
.link{background:none;border:0;color:var(--teal-2);text-decoration:underline;padding:0}

/* barre haute / navigation */
.topbar{position:sticky;top:0;z-index:20;display:flex;align-items:center;gap:.8rem;padding:calc(.6rem + env(safe-area-inset-top)) 1rem .6rem;background:var(--teal);color:#fff}
.tb-brand{display:flex;align-items:center;gap:.6rem;font:700 1.15rem var(--serif);flex:1}
.avatar{width:36px;height:36px;border-radius:50%;border:0;background:rgba(255,255,255,.16);color:#fff;font-weight:700}.chip-off{font-size:.72rem;background:var(--gold);color:#3a2a00;padding:.2rem .6rem;border-radius:999px;font-weight:700}
.bottom{position:fixed;left:0;right:0;bottom:0;z-index:20;display:grid;grid-template-columns:repeat(3,1fr);background:#fff;border-top:1px solid var(--line);padding:.35rem .5rem calc(.35rem + env(safe-area-inset-bottom))}
.bottom button,.bottom .lnk{display:flex;flex-direction:column;align-items:center;gap:2px;background:none;border:0;color:var(--muted);font-size:.7rem;font-weight:600;padding:.3rem;text-decoration:none}.bottom .on{color:var(--teal)}
.page{max-width:980px;margin:0 auto;padding:1rem}.h1{font:700 1.5rem var(--serif);color:var(--teal);margin:.6rem 0 1rem}.h1 small{font:600 .85rem var(--sans);color:var(--muted)}
.banner{background:#fff4d6;color:#7a5200;border-radius:12px;padding:.7rem 1rem;margin-bottom:1rem;font-size:.9rem}
.install{display:flex;align-items:center;gap:1rem;justify-content:space-between;background:linear-gradient(135deg,var(--teal),var(--teal-2));color:#fff;border-radius:16px;padding:1rem;margin-bottom:1rem}.install div{display:flex;flex-direction:column;font-size:.85rem}.install b{font-size:.95rem}.install span{color:#cfe0de}

/* bibliothèque */
.shelf{display:grid;grid-template-columns:repeat(auto-fill,minmax(130px,1fr));gap:1rem}
.bk{background:none;border:0;padding:0;text-align:left;color:inherit}.bk-cover{position:relative;aspect-ratio:3/4;border-radius:12px;overflow:hidden;background:linear-gradient(135deg,var(--teal-3),#f4ecd6);box-shadow:0 6px 18px rgba(15,61,62,.18);transition:transform .2s}.bk:active .bk-cover{transform:scale(.97)}
.bk-cover img{width:100%;height:100%;object-fit:cover}.bk-badge{position:absolute;left:6px;bottom:6px;background:rgba(15,61,62,.92);color:#fff;font-size:.65rem;font-weight:700;padding:.15rem .5rem;border-radius:999px}
.bk-title{margin-top:.5rem;font-size:.85rem;font-weight:600;line-height:1.3;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty{text-align:center;padding:2.5rem 1rem}.empty-ico{font-size:3rem}.empty h2{font:700 1.3rem var(--serif);color:var(--teal)}.hint{font-size:.85rem;color:var(--muted);margin-top:1.4rem}

/* feuille livre */
.overlay{position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:40}
.sheet{position:fixed;left:0;right:0;bottom:0;z-index:41;background:#fff;border-radius:22px 22px 0 0;padding:1.2rem 1.2rem calc(1.2rem + env(safe-area-inset-bottom));max-height:85vh;overflow-y:auto;max-width:640px;margin:0 auto;animation:up .22s ease-out}@keyframes up{from{transform:translateY(40px);opacity:0}}
.sheet-head{display:flex;gap:1rem;align-items:flex-start;margin-bottom:1rem}.sheet-head img{width:64px;height:86px;object-fit:cover;border-radius:8px;flex:none}.sheet-head h2{font:700 1.1rem var(--serif);margin:0 0 .2rem;color:var(--teal)}.sheet-head small{color:var(--muted)}.x{margin-left:auto;background:var(--teal-3);border:0;border-radius:50%;width:32px;height:32px;color:var(--teal)}
.part{display:flex;justify-content:space-between;gap:.8rem;align-items:center;padding:.8rem 0;border-top:1px solid var(--line)}.part-info{display:flex;flex-direction:column;min-width:0;flex:1}.part-info small{color:var(--muted)}.part-act{display:flex;gap:.4rem;flex-wrap:wrap;justify-content:flex-end}
.bar{height:6px;background:var(--teal-3);border-radius:99px;overflow:hidden;margin-top:.4rem}.bar div{height:100%;background:var(--teal);width:0;transition:width .2s}

/* compte */
.card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:1rem;margin-bottom:1rem}.card h3{margin:0 0 .5rem;font-size:1rem}.card .row{display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:.55rem 0;border-top:1px solid #f0ece0}.card .row:first-of-type{border-top:0}.row div{display:flex;flex-direction:column}.row small{color:var(--muted)}
.pill{background:var(--teal-3);color:var(--teal);font-size:.68rem;padding:.12rem .5rem;border-radius:99px;font-weight:700}
.inline{display:flex;gap:.5rem;margin:.6rem 0}input{width:100%;font:inherit;padding:.75rem .9rem;border:1.5px solid var(--line);border-radius:12px;background:#fff}input:focus{outline:0;border-color:var(--teal-2);box-shadow:0 0 0 4px rgba(22,84,86,.1)}

/* connexion / verrou */
.center-page{min-height:100vh;display:grid;place-items:center;padding:1.2rem;background:radial-gradient(900px 400px at 80% -10%,rgba(243,201,105,.25),transparent 60%),linear-gradient(160deg,#0c3132,#0f3d3e 60%,#165456)}
.login,.lock{width:min(400px,100%);background:#fff;border-radius:24px;padding:1.8rem 1.5rem;text-align:center;box-shadow:0 24px 60px rgba(0,0,0,.25)}
.login h1,.lock h1{font:700 1.5rem var(--serif);color:var(--teal);margin:.6rem 0 .3rem}.login-logo{display:grid;place-items:center;background:var(--teal);width:76px;height:76px;border-radius:22px;margin:0 auto}.lock-ico{font-size:3rem}
.login form{display:grid;gap:.7rem;text-align:left}.login .btn{width:100%}.alert{background:#fff4d6;color:#7a5200;border-radius:12px;padding:.6rem .8rem;font-size:.88rem;margin:.8rem 0;text-align:left}
.gbtn{display:flex;justify-content:center;margin:1rem 0 .4rem;min-height:44px}.or{display:flex;align-items:center;gap:.8rem;color:var(--muted);font-size:.8rem;margin:.6rem 0}.or:before,.or:after{content:"";flex:1;height:1px;background:var(--line)}
.otp{text-align:center;font-size:1.6rem;letter-spacing:.5rem;font-weight:700}

.toast{position:fixed;left:50%;bottom:calc(90px + env(safe-area-inset-bottom));transform:translateX(-50%);background:#1b1f23;color:#fff;padding:.7rem 1.1rem;border-radius:12px;z-index:100;font-size:.9rem;max-width:90vw;transition:opacity .3s}.toast.out{opacity:0}

/* lecteur plein écran */
.reader{position:fixed;inset:0;z-index:200;background:#2a2d31;display:flex;flex-direction:column;-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.reader *{-webkit-user-select:none;user-select:none;-webkit-touch-callout:none}
.reader-bar{display:flex;align-items:center;gap:.6rem;padding:calc(.4rem + env(safe-area-inset-top)) .6rem .4rem;background:#1b1d20;color:#fff}.rb-title{flex:1;min-width:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;font-weight:600;font-size:.95rem}.rb-title small{color:#9aa3a8;font-weight:500;margin-left:.4rem}
.rb-btn{background:rgba(255,255,255,.1);color:#fff;border:0;border-radius:10px;min-width:40px;height:40px;font-size:1.3rem;line-height:1}.rb-btn:active{background:rgba(255,255,255,.22)}.rb-zoom{display:flex;gap:.3rem}
.reader-stage{flex:1;overflow:auto;display:flex;justify-content:flex-start;-webkit-overflow-scrolling:touch;padding:0;position:relative;touch-action:pan-x pan-y}
.reader-stage canvas{display:block;margin:0 auto;background:#fff;box-shadow:0 4px 24px rgba(0,0,0,.4);flex:none;pointer-events:none}
.reader-loading{position:absolute;inset:0;display:grid;place-items:center;color:#c9d1d5;background:rgba(42,45,49,.85);text-align:center;padding:1rem}.reader-loading[hidden]{display:none}
.reader-nav{display:flex;align-items:center;justify-content:center;gap:1rem;padding:.5rem .6rem calc(.5rem + env(safe-area-inset-bottom));background:#1b1d20;color:#fff}.rn-page{display:flex;align-items:center;gap:.4rem}.rn-page input{width:64px;text-align:center;padding:.4rem;background:#2a2d31;color:#fff;border:1px solid #444;border-radius:8px}
.shield{position:absolute;inset:0;z-index:5;background:#000;color:#fff;display:none;flex-direction:column;align-items:center;justify-content:center;gap:.4rem;text-align:center;padding:2rem}.shield-msg{font:700 1.2rem var(--serif)}.shield small{color:#9aa3a8}
.reader.shielded .shield{display:flex}.reader.shielded .reader-stage{visibility:hidden}
@media print{body *{display:none!important}body:after{content:"Impression non autorisée";display:block!important;font:20px sans-serif;padding:2rem}}
@media(min-width:760px){.shelf{grid-template-columns:repeat(auto-fill,minmax(160px,1fr))}.sheet{bottom:50%;transform:translateY(50%);border-radius:22px;animation:none}}