@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');
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@media print{body{background:#fff}.sidebar,.topbar,.main-footer,.page-intro,.lkpd-actions,.privacy-note{display:none!important}.main-area{margin:0}.page{display:none!important;padding:0}.page#page-lkpd{display:block!important}.panel{box-shadow:none;border:0;padding:0}.lkpd-panel{padding:0}.lkpd-head{margin-bottom:12px}.form-grid input,.form-grid textarea{border:1px solid #aaa}.form-grid textarea{min-height:80px}.callout{break-inside:avoid}table{font-size:9px}td,th{padding:7px}}

/* Tahap 2 — advanced physics simulation */
.advanced-panel,.graph-grid-panel,.compare-panel{margin-top:14px;padding:20px}.mode-switch{display:flex;gap:10px;flex-wrap:wrap;margin:10px 0 18px}.mode-switch label,.angle-chips label{display:inline-flex;align-items:center;gap:7px;padding:9px 13px;border:1px solid #e9e5f0;border-radius:8px;background:#fcfbfe;color:#625d73;font-size:10px;font-weight:600}.mode-switch input,.angle-chips input{accent-color:#9c5bd1}.guided-panel{padding:14px 17px;border-radius:9px;background:#f8f4ff;border:1px solid #eee4fb;color:#625277;font-size:10px;line-height:1.8;margin-bottom:17px}.guided-panel ol{margin:7px 0;padding-left:19px}.guided-panel p{margin:6px 0 0;color:#8c55bd;font-weight:700}.drag-control{max-width:560px;margin:16px 0}.drag-control small{display:block;color:#9691a2;font-size:9px;line-height:1.6;margin-top:8px}.live-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:9px;margin-top:20px}.live-grid>div{background:#f9f7fc;border:1px solid #efebf4;border-radius:8px;padding:11px}.live-grid small{display:block;font-size:8px;letter-spacing:.6px;color:#9b96a8;font-weight:700;margin-bottom:7px}.live-grid b{font:700 11px 'DM Sans';color:#57476d;white-space:nowrap}.graphs-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.graphs-grid>div{min-width:0;padding:12px;border:1px solid #f0edf4;border-radius:9px}.graphs-grid b{display:block;font-size:10px;color:#6f637e;margin-bottom:8px}.graphs-grid canvas,.compare-panel canvas{width:100%;height:auto;display:block}.angle-chips{display:flex;gap:8px;flex-wrap:wrap;margin-bottom:12px}.comparison-legend{display:flex;gap:14px;flex-wrap:wrap;color:#777;font-size:10px;padding-top:10px}.sim-speed{display:flex;align-items:center;gap:7px;margin-left:auto;color:#8d899a;font-size:9px}.sim-speed select{border:1px solid #e9e6ef;border-radius:6px;padding:7px;background:#fff;color:#6d647c;font-size:10px}
@media(max-width:850px){.live-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.graphs-grid{grid-template-columns:1fr}.sim-speed{margin-left:0}}

/* ===== Virtual Laboratory Pro · Tahap 3 ===== */
.pro-toolbar{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:20px}.pro-toolbar>div:first-child{display:grid;gap:5px}.pro-toolbar small,.pro-panel small{color:var(--muted)}.pro-fields{display:grid;grid-template-columns:repeat(3,minmax(130px,1fr));gap:12px}.pro-fields label,.teacher-panel label{display:grid;gap:6px;font-size:12px;font-weight:700;color:var(--ink)}.pro-fields input,.pro-fields select,.teacher-panel select{width:100%;padding:10px 11px;border:1px solid #dfe3ee;border-radius:10px;background:#fff;color:#202943;font:inherit}.pro-grid{display:grid;grid-template-columns:minmax(260px,.78fr) minmax(0,1.5fr);gap:18px;margin-bottom:18px}.pro-controls,.pro-view,.energy-panel,.scenario-panel,.bank-panel,.teacher-panel{padding:22px;margin-bottom:18px}.pro-range{display:grid;grid-template-columns:1fr auto;gap:7px;margin:18px 0;font-size:13px;font-weight:700;color:var(--ink)}.pro-range output{color:#8d4bd0}.pro-range input{grid-column:1/-1;width:100%;accent-color:#9b5de5}.pro-controls .pro-fields{grid-template-columns:repeat(2,minmax(0,1fr));margin:20px 0}.pro-buttons{margin:14px 0}.check-line{display:flex;align-items:center;gap:9px;color:var(--muted);font-size:13px}.check-line input{accent-color:#9b5de5}.segmented{display:flex;padding:4px;background:#f0eff8;border-radius:10px;gap:4px}.segmented button{border:0;background:transparent;padding:8px 14px;border-radius:7px;color:#59647a;font-weight:700;cursor:pointer}.segmented button.active{background:#34245c;color:#fff}.pro-view canvas{width:100%;height:auto;border-radius:12px;background:#f7f8fc}.pro-legend{display:flex;gap:18px;flex-wrap:wrap;padding:12px 2px;color:#69748c;font-size:12px}.pro-legend span{display:flex;align-items:center;gap:7px}.pro-legend i{display:inline-block;width:20px;height:4px;border-radius:4px}.legend-path{background:#9b5de5}.legend-velocity{background:#ed4775}.legend-gravity{background:#2563eb}.pro-metrics,.energy-cards,.dash-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}.pro-metrics>div,.energy-cards>div,.dash-stats>div{padding:14px;border:1px solid #e8e9f1;border-radius:12px;background:#fbfbfe;display:grid;gap:6px}.pro-metrics small,.energy-cards small,.dash-stats small{font-size:10px;letter-spacing:.07em;color:#79839a;font-weight:800}.pro-metrics b,.energy-cards b,.dash-stats b{font-size:18px;color:#30245b}.energy-cards{grid-template-columns:repeat(3,1fr)}.energy-cards span{font-size:12px;color:#8991a3}.pro-note{margin:14px 0 0;font-size:12px;line-height:1.65}.scenario-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.scenario-card{border:1px solid #e5e5f0;border-radius:13px;background:linear-gradient(145deg,#fff,#f8f6ff);padding:16px;text-align:left;display:grid;gap:8px;cursor:pointer;color:#30245b}.scenario-card b{font-size:14px}.scenario-card span{font-size:12px;color:#778097}.scenario-card:hover{border-color:#a78bfa;transform:translateY(-2px)}.experiment-bank{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:18px}.experiment-bank article{padding:15px;border:1px solid #e8e9f1;border-radius:12px}.experiment-bank small{color:#9b5de5;font-size:10px;font-weight:800;letter-spacing:.07em}.experiment-bank h3{font-size:14px;margin:9px 0 5px;color:#30245b}.experiment-bank p{font-size:12px;color:#7b8498;min-height:48px}.experiment-bank button{border:0;background:none;color:#8a4ac8;font-weight:800;font-size:12px;cursor:pointer;padding:0}.pro-table-wrap{margin-top:8px}.teacher-panel .panel-heading-row{align-items:center}.teacher-panel label{min-width:140px}.dash-stats{grid-template-columns:repeat(3,1fr);margin:15px 0}.dashboard-content{padding:2px 0}.teacher-panel .button-group{margin-top:14px}.privacy-note{font-size:11px;color:#858da0;margin:13px 0 0}
@media(max-width:900px){.pro-toolbar{align-items:flex-start;flex-direction:column;width:100%}.pro-toolbar .pro-fields{width:100%}.pro-grid{grid-template-columns:1fr}.scenario-grid,.experiment-bank{grid-template-columns:repeat(2,1fr)}}
@media(max-width:600px){.pro-fields{grid-template-columns:1fr 1fr}.pro-metrics{grid-template-columns:repeat(2,1fr)}.energy-cards,.dash-stats{grid-template-columns:1fr}.scenario-grid,.experiment-bank{grid-template-columns:1fr}.pro-controls,.pro-view,.energy-panel,.scenario-panel,.bank-panel,.teacher-panel{padding:15px}.pro-metrics b{font-size:16px}}
/* Tahap 3 Pro — 3D viewport */
#pro3dView { box-shadow: inset 0 0 0 1px rgba(125,160,255,.12); }
#pro3dView canvas { cursor: grab; }
#pro3dView canvas:active { cursor: grabbing; }
.pro-view:has(#pro3dView) .segmented button.active { box-shadow: 0 0 0 2px rgba(155,93,229,.18); }