:root{--accent:#2563eb;--bg:#f4f6fb;--card:#fff;--text:#1b2433;--muted:#667085;--line:#e4e8f0;--ok:#16a34a;--warn:#d97706;--err:#dc2626;--radius:12px}
*{box-sizing:border-box}
body{margin:0;font:15px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--text);background:var(--bg)}
a{color:var(--accent)}
h1{font-size:1.6rem;margin:0 0 .2rem}h2{margin:.2rem 0 .8rem}h3{margin:.1rem 0 .8rem}h4{margin:1.2rem 0 .5rem}
code{background:#eef1f7;padding:.1em .4em;border-radius:6px;font-size:.9em;word-break:break-all}
code[data-ok]{background:#d1fae5}
.muted{color:var(--muted)}.small{font-size:.85rem}.right{text-align:right;white-space:nowrap}
/* mise en page */
body.app{display:flex;min-height:100vh}
.side{width:260px;background:#101828;color:#e5e9f2;display:flex;flex-direction:column;padding:18px 14px;position:sticky;top:0;height:100vh;overflow:auto;flex-shrink:0}
.brand{font-weight:700;font-size:1.05rem;padding:6px 10px 16px;border-bottom:1px solid #1f2a3d;margin-bottom:10px}
.brand small{display:block;font-weight:400;color:#8b98b0;font-size:.75rem}
.side nav{flex:1}
.side nav a{display:flex;align-items:center;gap:10px;color:#cfd7e6;text-decoration:none;padding:9px 10px;border-radius:8px;margin:2px 0}
.side nav a span{width:20px;text-align:center}
.side nav a:hover{background:#1a2538}
.side nav a.on{background:var(--accent);color:#fff}
.pill{background:#ef4444;color:#fff;border-radius:99px;font-size:.72rem;padding:0 7px;margin-left:auto}
.who{border-top:1px solid #1f2a3d;padding-top:12px;font-size:.9rem}
.who a{color:#fff;text-decoration:none;display:block;font-weight:600}.who small{color:#8b98b0;display:block}
.link{background:none;border:0;color:#9db4ff;padding:6px 0;cursor:pointer;font:inherit}
.main{flex:1;padding:28px;max-width:1150px;min-width:0}
body.bare{display:block}
.solo{max-width:1000px;margin:0 auto;padding:28px 16px}
.head{margin-bottom:16px}
/* composants */
.card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin:0 0 16px;box-shadow:0 1px 2px rgba(16,24,40,.04)}
.card.narrow{max-width:460px;margin:8vh auto}
.grid2{display:grid;grid-template-columns:repeat(auto-fit,minmax(320px,1fr));gap:16px}
.grid2>.card{margin:0}
.row{display:flex;gap:12px;flex-wrap:wrap}.row>label{flex:1;min-width:150px}
label{display:block;font-weight:600;font-size:.88rem;margin:0 0 12px}
label.check{font-weight:400;display:flex;gap:8px;align-items:flex-start}
input,select,textarea{display:block;width:100%;margin-top:5px;padding:9px 11px;border:1px solid #cfd6e4;border-radius:9px;font:inherit;background:#fff;color:inherit}
input[type=checkbox]{width:auto;margin:3px 0 0}input[type=color]{padding:2px;height:40px}
input:focus,select:focus,textarea:focus{outline:2px solid color-mix(in srgb,var(--accent) 35%,transparent);border-color:var(--accent)}
input.slim{display:inline-block;width:180px;margin:0}
.btn{display:inline-block;background:var(--accent);color:#fff;border:1px solid var(--accent);padding:9px 16px;border-radius:9px;font:inherit;font-weight:600;cursor:pointer;text-decoration:none}
.btn:hover{filter:brightness(1.08)}
.btn.ghost{background:#fff;color:var(--text);border-color:#cfd6e4}.btn.ghost.on{border-color:var(--accent);color:var(--accent)}
.btn.danger{background:#fff;color:var(--err);border-color:#f3b4b4}.btn.danger:hover{background:var(--err);color:#fff}
.btn.small{padding:4px 10px;font-size:.82rem}.btn.block{width:100%;text-align:center}
form.inline{display:inline-block;margin:0 2px}
table{width:100%;border-collapse:collapse}
th{text-align:left;font-size:.78rem;text-transform:uppercase;letter-spacing:.04em;color:var(--muted);padding:8px;border-bottom:1px solid var(--line)}
td{padding:9px 8px;border-bottom:1px solid #eef1f6;vertical-align:middle}
.alert{border-radius:10px;padding:11px 14px;margin:0 0 12px;background:#e8f0ff;border:1px solid #c4d6ff}
.alert.ok{background:#e7f8ee;border-color:#b7e8c9}.alert.warn{background:#fff4e0;border-color:#fbd9a0}.alert.err{background:#feeaea;border-color:#f6bcbc}
.alert small{display:block;margin-top:4px}
.creds{border:2px solid var(--accent)}
.stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:12px;margin-bottom:16px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);padding:14px}
.stat b{font-size:1.8rem;display:block;line-height:1.1}.stat span{color:var(--muted);font-size:.85rem}
.line{display:flex;justify-content:space-between;align-items:center;gap:12px;padding:10px 4px;border-bottom:1px solid #eef1f6;color:inherit;text-decoration:none}
.line:last-child{border-bottom:0}.line small{display:block;color:var(--muted)}
a.line:hover{background:#f7f9fd}.line.unread b::before{content:"● ";color:var(--accent)}
.tag{display:inline-block;background:#eef1f7;border-radius:99px;padding:0 9px;font-size:.75rem;color:#475467}.tag.red{background:#feeaea;color:var(--err)}
.links{display:flex;gap:8px;flex-wrap:wrap}
.pronote{display:flex;align-items:center;gap:16px;background:linear-gradient(120deg,var(--accent),color-mix(in srgb,var(--accent) 60%,#000));color:#fff;text-decoration:none;border-radius:var(--radius);padding:18px 22px;margin-bottom:16px;box-shadow:0 6px 18px rgba(16,24,40,.15)}
.pronote span{font-size:2rem}.pronote b{display:block;font-size:1.15rem}.pronote small{opacity:.85}
.pronote:hover{filter:brightness(1.07)}
.msgbody{white-space:normal;padding:12px 0;font-size:1rem}
.logo{max-height:70px;max-width:220px}
/* page de connexion */
.login-wrap{display:grid;grid-template-columns:1.2fr 1fr;gap:28px;align-items:start;margin-top:5vh}
.login-info h1{font-size:2.1rem}
.login-card{margin:0}
@media(max-width:860px){body.app{display:block}.side{position:static;width:auto;height:auto}.main{padding:16px}.login-wrap{grid-template-columns:1fr;margin-top:0}}
@media print{.side,.btn,form.inline{display:none!important}.main{padding:0}body{background:#fff}}