:root{--ink:#14251e;--forest:#163c2c;--green:#1f6a48;--lime:#c9ee64;--cream:#f4f2e9;--paper:#fffef9;--muted:#718078;--line:#dfe5df;--orange:#ef8c3a;--blue:#377f94;--shadow:0 18px 55px rgba(18,48,35,.12)}
*{box-sizing:border-box}body{margin:0;font-family:Manrope,sans-serif;color:var(--ink);background:var(--cream)}button,input{font:inherit}.hidden{display:none!important}.login-shell{min-height:100vh;display:grid;grid-template-columns:1.08fr .92fr;background:var(--paper)}
.login-brand{position:relative;overflow:hidden;padding:42px 6vw;color:#fff;background:radial-gradient(circle at 75% 15%,#2c7250 0,transparent 29%),linear-gradient(145deg,#102a20,#183e2e 72%,#10271e);display:flex;flex-direction:column}.brand{display:flex;align-items:center;gap:12px;font-family:"Space Grotesk";font-weight:700;letter-spacing:.05em}.brand-mark{display:grid;place-items:center;width:42px;height:42px;background:var(--lime);color:var(--forest);border-radius:12px;font-size:23px;box-shadow:inset 0 0 0 1px #eaffb1}.hero-copy{margin:auto 0;position:relative;z-index:2}.eyebrow,.kicker{font-size:12px;font-weight:800;letter-spacing:.18em;color:var(--lime)}.hero-copy h1{font:700 clamp(54px,7vw,100px)/.84 "Space Grotesk";margin:20px 0 28px;letter-spacing:-.06em}.hero-copy h1 span{color:var(--lime)}.hero-copy p{max-width:530px;color:#d3e2d9;font-size:17px;line-height:1.7}.brand-footer{display:flex;gap:14px;color:#9fc1ae;font-size:12px;font-weight:700;letter-spacing:.12em}.circuit-art{position:absolute;width:330px;height:330px;right:-80px;bottom:55px;border:1px solid rgba(201,238,100,.2);border-radius:50%;display:grid;place-items:center}.circuit-art:before,.circuit-art:after{content:"";position:absolute;border:1px solid rgba(201,238,100,.16);border-radius:50%;inset:45px}.circuit-art:after{inset:95px}.circuit-art b{color:rgba(201,238,100,.35);font:700 48px "Space Grotesk";transform:rotate(-12deg)}.circuit-art i{position:absolute;background:var(--lime);width:9px;height:9px;border-radius:50%}.circuit-art i:nth-child(1){left:20px}.circuit-art i:nth-child(2){right:43px;top:56px}.circuit-art i:nth-child(3){bottom:15px;left:140px}
.login-panel{display:grid;place-items:center;padding:50px}.login-card{width:min(430px,100%)}.mobile-brand{display:none}.login-card h2{font:700 36px "Space Grotesk";margin:9px 0}.login-card>.muted{margin-bottom:34px}.muted{color:var(--muted)}label{display:block;font-size:13px;font-weight:700;margin:18px 0}input{display:block;width:100%;margin-top:8px;border:1px solid #d7dfda;border-radius:12px;padding:14px 16px;outline:none;background:#fafbf8}input:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(31,106,72,.1)}.primary{border:0;background:var(--forest);color:white;border-radius:12px;padding:15px 18px;width:100%;font-weight:800;display:flex;justify-content:center;gap:12px;cursor:pointer}.primary:hover{background:#21583f}.error{min-height:19px;color:#b53c37;font-size:12px}.demo-box{margin-top:25px;background:#f0f5ed;border-radius:14px;padding:14px}.demo-box strong{font-size:11px;text-transform:uppercase;letter-spacing:.12em}.demo-box button{display:block;border:0;background:none;color:var(--green);padding:8px 0 0;cursor:pointer;font-size:12px}
.app-shell{min-height:100vh;display:grid;grid-template-columns:255px 1fr}.sidebar{background:var(--forest);color:white;padding:28px 20px;position:fixed;inset:0 auto 0 0;width:255px;display:flex;flex-direction:column;z-index:10}.sidebar-brand{padding:0 7px 30px;border-bottom:1px solid rgba(255,255,255,.12)}.sidebar-brand small{display:block;font:600 8px Manrope;letter-spacing:.17em;color:#acd0bd;margin-top:2px}.sidebar nav{padding-top:25px;display:grid;gap:6px}.sidebar nav button,.logout{border:0;background:none;color:#bad0c3;text-align:left;border-radius:11px;padding:12px 14px;cursor:pointer;font-weight:650}.sidebar nav button span{display:inline-block;width:26px}.sidebar nav button.active,.sidebar nav button:hover{background:rgba(201,238,100,.14);color:var(--lime)}.sidebar-note{margin-top:auto;background:#224f3b;border-radius:14px;padding:15px;font-size:11px;color:#bbd0c4}.sidebar-note b{color:var(--lime)}.logout{margin-top:12px}.main-wrap{grid-column:2;min-width:0}.main-wrap header{height:88px;background:rgba(255,254,249,.9);backdrop-filter:blur(10px);border-bottom:1px solid var(--line);padding:0 38px;display:flex;align-items:center;justify-content:space-between;position:sticky;top:0;z-index:5}.main-wrap header p,.main-wrap header h2{margin:0}.main-wrap header p{font-size:11px;color:var(--muted)}.main-wrap header h2{font-size:18px}.header-actions{display:flex;align-items:center;gap:15px}.class-pill{background:#e6f2de;color:var(--green);padding:8px 13px;border-radius:99px;font-size:11px;font-weight:800}.avatar{width:42px;height:42px;border-radius:13px;background:var(--lime);display:grid;place-items:center;font-weight:800}.menu-btn{display:none}#content{padding:34px 38px 60px;max-width:1450px;margin:auto}.page-title{display:flex;justify-content:space-between;align-items:end;margin-bottom:25px}.page-title h1{font:700 30px "Space Grotesk";margin:0}.page-title p{margin:5px 0 0;color:var(--muted);font-size:13px}.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.stat{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:19px}.stat .top{display:flex;justify-content:space-between;color:var(--muted);font-size:11px;font-weight:700}.stat .icon{width:33px;height:33px;border-radius:10px;background:#edf5e8;display:grid;place-items:center;color:var(--green)}.stat strong{display:block;font:700 30px "Space Grotesk";margin-top:10px}.stat small{color:var(--muted)}.dashboard-grid{display:grid;grid-template-columns:1.5fr .8fr;gap:20px;margin-top:22px}.panel{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:22px}.panel-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:18px}.panel-head h3{margin:0;font:700 18px "Space Grotesk"}.text-btn{border:0;background:none;color:var(--green);font-weight:800;cursor:pointer}.project-feature{border-radius:16px;background:linear-gradient(130deg,#183c2d,#24583f);padding:23px;color:white;position:relative;overflow:hidden}.project-feature:after{content:"";width:180px;height:180px;border:35px solid rgba(201,238,100,.11);border-radius:50%;position:absolute;right:-65px;top:-50px}.project-feature .tag,.project-card .tag{display:inline-block;border-radius:99px;background:var(--lime);color:var(--forest);padding:5px 9px;font-size:9px;font-weight:800;letter-spacing:.08em}.project-feature h3{font:700 24px "Space Grotesk";margin:15px 0 7px}.progress{height:7px;border-radius:99px;background:#e3e7e1;overflow:hidden}.progress i{display:block;height:100%;background:var(--lime);border-radius:99px}.project-feature .progress{background:rgba(255,255,255,.19);margin:22px 0 8px}.feature-foot{display:flex;justify-content:space-between;font-size:11px;color:#c9dbd0}.project-feature button{margin-top:20px;width:auto;background:var(--lime);color:var(--forest);padding:11px 16px}.activity{display:grid;gap:12px}.activity-item{display:grid;grid-template-columns:38px 1fr;gap:10px;align-items:center}.activity-icon{width:36px;height:36px;border-radius:10px;background:#edf4e9;display:grid;place-items:center}.activity-item b,.activity-item small{display:block}.activity-item b{font-size:12px}.activity-item small{font-size:10px;color:var(--muted)}.section-title{font:700 20px "Space Grotesk";margin:30px 0 16px}.project-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.project-card{background:var(--paper);border:1px solid var(--line);border-radius:16px;padding:18px;cursor:pointer;transition:.2s}.project-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#c1d5c6}.project-card .number{float:right;color:#cad2cc;font:700 28px "Space Grotesk"}.project-card h3{font:700 16px "Space Grotesk";margin:18px 0 7px}.project-card p{font-size:11px;color:var(--muted);min-height:34px}.project-card .progress{margin-top:17px}.card-foot{display:flex;justify-content:space-between;font-size:9px;color:var(--muted);margin-top:7px}.filters{display:flex;gap:8px}.filter{border:1px solid var(--line);background:white;border-radius:99px;padding:8px 14px;cursor:pointer;font-size:11px;font-weight:800}.filter.active{background:var(--forest);color:white}.student-table{width:100%;border-collapse:collapse}.student-table th,.student-table td{text-align:left;padding:13px 10px;border-bottom:1px solid var(--line);font-size:11px}.student-table th{color:var(--muted);font-size:9px;letter-spacing:.08em}.status{display:inline-block;padding:5px 8px;border-radius:99px;font-size:9px;font-weight:800;background:#e8f3e2;color:var(--green)}.status.wait{background:#fff0df;color:#ad6429}.modal{position:fixed;inset:0;background:rgba(9,22,16,.7);z-index:30;display:grid;place-items:center;padding:20px}.modal-card{width:min(780px,100%);max-height:90vh;overflow:auto;background:var(--paper);border-radius:22px;padding:31px;position:relative}.modal-close{position:absolute;right:17px;top:14px;border:0;background:#edf0eb;border-radius:50%;width:34px;height:34px;cursor:pointer;font-size:22px}.modal-hero{background:var(--forest);color:white;border-radius:15px;padding:24px}.modal-hero h2{font:700 27px "Space Grotesk";margin:12px 0 5px}.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:9px;margin:20px 0}.step{background:#f0f4ed;border-radius:12px;padding:14px;font-size:10px}.step b{display:block;color:var(--green);font-size:18px;margin-bottom:6px}.code{background:#17251f;color:#d7f7c0;border-radius:12px;padding:16px;font:12px/1.6 monospace;white-space:pre-wrap}.upload-area{border:2px dashed #cbd6ce;border-radius:13px;padding:21px;text-align:center;color:var(--muted);font-size:11px;margin-top:15px}
@media(max-width:950px){.login-shell{grid-template-columns:1fr}.login-brand{display:none}.mobile-brand{display:flex;align-items:center;gap:10px;margin-bottom:50px;font-size:12px;font-weight:800}.app-shell{grid-template-columns:1fr}.sidebar{transform:translateX(-105%);transition:.25s}.sidebar.open{transform:none}.main-wrap{grid-column:1}.menu-btn{display:block;border:0;background:none;font-size:22px}.main-wrap header{padding:0 20px}.main-wrap header>div:first-of-type{margin-right:auto}.class-pill{display:none}#content{padding:24px 18px 50px}.stats{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.project-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:580px){.login-panel{padding:28px}.login-card h2{font-size:30px}.stats{grid-template-columns:1fr 1fr}.stat{padding:15px}.stat strong{font-size:24px}.project-grid{grid-template-columns:1fr}.page-title{align-items:start;gap:15px}.filters{flex-wrap:wrap}.steps{grid-template-columns:1fr 1fr}.header-actions{gap:6px}.modal-card{padding:22px 16px}.student-table th:nth-child(3),.student-table td:nth-child(3){display:none}}

/* Materi lengkap proyek */
.lesson-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:22px 0}.lesson-grid article,.simulation,.submission{border:1px solid #dce5dc;border-radius:18px;padding:20px;background:#fbfcf8}.lesson-grid h3,.submission h3{margin-top:0}.lesson-grid li,.simulation li,.wire-list div{margin:8px 0;line-height:1.55}.result-visual{min-height:150px;border-radius:16px;margin-top:16px;padding:22px;background:linear-gradient(145deg,#123d2d,#245c43);color:#fff;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center;box-shadow:inset 0 0 0 2px rgba(190,240,75,.25)}.result-visual span{font-size:12px;letter-spacing:2px;color:#c7f35a}.result-visual strong{font-size:22px;margin:10px}.result-visual small{opacity:.7}.wiring-diagram{display:grid;grid-template-columns:190px 1fr;gap:22px;align-items:center;padding:22px;border-radius:18px;background:#eef5ea;margin-bottom:22px}.uno-box{height:130px;border:4px solid #0d6f77;border-radius:14px;background:#158795;color:#fff;display:flex;align-items:center;justify-content:center;font-weight:800;box-shadow:0 8px 20px rgba(0,0,0,.12)}.wire-list div{display:flex;align-items:center;gap:10px;background:white;border-radius:10px;padding:8px 12px;border-left:4px solid #bbed45}.wire-list i{font-style:normal;width:24px;height:24px;border-radius:50%;background:#173d2e;color:#fff;display:grid;place-items:center;font-size:12px;flex:none}.code{position:relative;padding-top:50px}.code pre{white-space:pre-wrap;margin:0;font:12px/1.55 ui-monospace,SFMono-Regular,Consolas,monospace}.copy-code{position:absolute;right:12px;top:10px;border:0;border-radius:8px;padding:8px 12px;background:#c7f35a;color:#173d2e;font-weight:800;cursor:pointer}.simulation{margin-bottom:22px}.sim-link{display:inline-flex;width:auto;text-decoration:none;margin-top:8px}.submission{margin-top:22px}@media(max-width:760px){.lesson-grid,.wiring-diagram{grid-template-columns:1fr}.uno-box{height:90px}}