:root{
    --bg:#0b1220;
    --panel:#101a2f;
    --soft:#17233e;
    --line:rgba(255,255,255,.09);
    --text:#eef4ff;
    --muted:#9cb0d7;
    --accent:#60a5fa;
    --accent-2:#34d399;
    --warning:#f59e0b;
    --danger:#fb7185;
    --shadow:0 18px 60px rgba(0,0,0,.35);
}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Segoe UI,Arial,sans-serif;color:var(--text);background:radial-gradient(circle at top right, rgba(96,165,250,.18), transparent 24%),radial-gradient(circle at bottom left, rgba(52,211,153,.16), transparent 26%),var(--bg)}
.page-shell{min-height:100vh;display:grid;grid-template-columns:380px 1fr;gap:22px;padding:22px}
.glass{background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.025));border:1px solid var(--line);box-shadow:var(--shadow);border-radius:24px;backdrop-filter:blur(14px)}
.sidebar{padding:20px;display:flex;flex-direction:column;gap:18px}
.brand{display:flex;align-items:center;gap:14px}.brand h1{margin:0;font-size:1.35rem}.brand p{margin:4px 0 0;color:var(--muted);font-size:.92rem}.brand-icon{width:52px;height:52px;border-radius:18px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:grid;place-items:center;font-weight:800;color:#08111f}
.panel{padding:18px;border:1px solid var(--line);border-radius:22px;background:rgba(255,255,255,.02)}
label{display:block;font-size:.88rem;color:var(--muted);margin:0 0 8px}
input[type="date"],select,input[type="text"],textarea{width:100%;padding:12px 14px;border-radius:14px;border:1px solid var(--line);background:#0e1830;color:var(--text);outline:none}
.teacher-actions,.toolbar,.hero-actions,.section-head{display:flex;gap:10px;flex-wrap:wrap;align-items:center;justify-content:space-between}.toolbar{margin-top:14px}
.primary-btn,.secondary-btn,.ghost-btn,.small-btn,.choice-btn,.result-item,.icon-btn{border:none;border-radius:14px;padding:11px 14px;font-weight:700;cursor:pointer}
.primary-btn{background:linear-gradient(135deg,var(--accent),#3b82f6);color:#07111f}.secondary-btn,.ghost-btn,.small-btn,.choice-btn,.result-item,.icon-btn{background:#14213d;color:var(--text);border:1px solid var(--line)}
.small-btn{padding:8px 10px;border-radius:10px;font-size:.82rem}.small-btn.accent,.choice-btn{background:rgba(96,165,250,.16)}
.teacher-list,.history-list,.summary-list,.quick-choice-list,.search-result-list{display:flex;flex-direction:column;gap:10px;max-height:320px;overflow:auto;padding-right:4px}
.teacher-chip{display:flex;gap:12px;padding:12px;border:1px solid var(--line);border-radius:16px;background:#111d35;cursor:pointer}.teacher-chip input{margin-top:3px}.teacher-chip strong,.summary-card strong,.history-item strong{display:block}.teacher-chip small,.summary-card span,.history-item span,.history-item small,.result-item small,.choice-btn span{color:var(--muted)}
.stats-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}.stat-card{padding:14px;border-radius:18px;background:#111d35;border:1px solid var(--line)}.stat-card span{display:block;color:var(--muted);font-size:.82rem}.stat-card strong{font-size:1.25rem}
.content-area{display:flex;flex-direction:column;gap:18px}.hero{padding:22px;display:flex;justify-content:space-between;align-items:center;gap:16px}.hero h2{margin:0 0 8px}.hero p{margin:0;color:var(--muted)}
.result-stack{display:flex;flex-direction:column;gap:18px}.whatsapp-panel,.panel-block,.teacher-block{padding:18px}.message-box{min-height:260px;resize:vertical;line-height:1.45}
.summary-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.summary-card{padding:14px;border-radius:16px;border:1px solid var(--line);background:#111d35;display:flex;flex-direction:column;gap:4px}.summary-card.soft{background:#132642}
.teacher-block-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.teacher-block h3{margin:0}.teacher-block p{margin:6px 0 0;color:var(--muted)}
.table-wrap{overflow:auto}table{width:100%;border-collapse:collapse;min-width:880px}th,td{padding:12px;border-bottom:1px solid var(--line);vertical-align:top;text-align:left}th{font-size:.82rem;color:var(--muted);letter-spacing:.04em}.suggestion-cell{line-height:1.5}.selected-teacher{font-weight:700;margin-bottom:4px}
.history-item,.result-item,.choice-btn{padding:12px;border-radius:14px;text-align:left}.result-item{display:flex;flex-direction:column;gap:4px}.empty-note{padding:14px;border-radius:14px;background:#111d35;color:var(--muted);border:1px dashed var(--line)}
.modal{position:fixed;inset:0;background:rgba(6,10,18,.72);display:grid;place-items:center;padding:20px;z-index:1000}.modal.hidden{display:none}.modal-card{width:min(840px,100%);padding:18px}.modal-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}.modal-context{padding:12px 14px;margin-bottom:12px;border-radius:14px;background:#111d35;border:1px solid var(--line)}.icon-btn{width:42px;height:42px;border-radius:12px;font-size:1.3rem;line-height:1}
@media (max-width:1100px){.page-shell{grid-template-columns:1fr}.summary-grid{grid-template-columns:1fr}}
@media print{body{background:#fff;color:#000}.sidebar,.hero-actions,.toolbar,.small-btn,#copyWhatsappBtn,#copyWhatsappInline{display:none!important}.page-shell{display:block;padding:0}.glass{box-shadow:none;border:1px solid #ccc;background:#fff}.message-box{border:1px solid #ccc;color:#000}}