@import url('https://fonts.googleapis.com/css2?family=DM+Sans:wght@400;500;600;700&family=Manrope:wght@400;500;600;700;800&display=swap');
:root{--bg:#f5f6fb;--ink:#171b2e;--muted:#7b8198;--line:#e9eaf2;--purple:#6e5be8;--purple2:#8f7bff;--navy:#11162a;--card:#fff;--mint:#d9f8eb}
*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',sans-serif}.app-shell{min-height:100vh;display:grid;grid-template-columns:240px minmax(0,1fr)}.sidebar{background:var(--navy);color:#fff;padding:28px 17px;display:flex;flex-direction:column;min-height:100vh}.brand{display:flex;align-items:center;gap:10px;font:800 21px Manrope,sans-serif;letter-spacing:-.7px;padding:0 9px 27px}.brand-mark{display:grid;place-items:center;width:31px;height:31px;background:linear-gradient(135deg,#a995ff,#6353e8);border-radius:10px;font-size:20px}.simulation-pill{font-size:10px;color:#c8c4ff;background:#282541;border:1px solid #403963;border-radius:20px;padding:9px 10px;display:flex;align-items:center;gap:7px;margin:0 2px 34px}.pulse{width:6px;height:6px;background:#6ee7b7;border-radius:50%}.sidebar-label,.eyebrow{font-size:10px;letter-spacing:1.3px;font-weight:700;color:#9a9eb4}.sidebar-label{padding:0 12px 12px}.nav-item{border:0;background:transparent;color:#b4b8cb;padding:13px 14px;border-radius:12px;text-align:left;font:600 13px 'DM Sans';margin-bottom:6px;cursor:pointer}.nav-item span{display:inline-block;width:24px;font-size:17px}.nav-item.active,.nav-item:hover{background:#292745;color:#fff}.sidebar-bottom{margin-top:auto;border-top:1px solid #2c3043;padding:19px 7px 0;display:flex;align-items:center;gap:10px}.avatar{display:grid;place-items:center;width:34px;height:34px;border-radius:50%;background:#d8d1ff;color:#342b72;font-weight:700}.sidebar-bottom strong,.sidebar-bottom small{display:block}.sidebar-bottom strong{font-size:11px}.sidebar-bottom small{font-size:10px;color:#9ca2b8;margin-top:4px}.main{padding:32px clamp(22px,4vw,56px) 22px;max-width:1600px;width:100%;margin:auto}.topbar{display:flex;align-items:center;justify-content:space-between;gap:20px}.topbar h1{font:800 clamp(23px,2.3vw,32px) Manrope,sans-serif;letter-spacing:-1.2px;margin:8px 0 0}.date-chip{border:1px solid var(--line);background:white;border-radius:11px;padding:10px 13px;font-size:10px;letter-spacing:1px;font-weight:700;color:#777d94}.welcome-row{display:grid;grid-template-columns:1fr minmax(220px,290px);gap:28px;align-items:end;margin:34px 0 24px}.sparkle{font-size:12px;font-weight:700;color:var(--purple);margin-bottom:12px}.welcome-copy h2{font:700 clamp(18px,1.7vw,23px) Manrope,sans-serif;letter-spacing:-.6px;margin:0 0 9px}.welcome-copy p{font-size:13px;color:var(--muted);line-height:1.7;max-width:590px;margin:0}.progress-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:17px 18px}.progress-heading,.progress-foot{display:flex;justify-content:space-between;align-items:center}.progress-heading{font-size:11px;font-weight:700}.progress-heading span:last-child{color:var(--purple)}.progress-track{height:6px;background:#eeedf8;border-radius:10px;margin:14px 0 10px;overflow:hidden}.progress-track div{height:100%;width:0;background:linear-gradient(90deg,var(--purple),#b4a7ff);border-radius:10px;transition:width .3s}.progress-foot{font-size:10px;color:var(--muted)}.workspace{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(280px,.85fr);gap:20px;align-items:start}.panel{background:var(--card);border:1px solid var(--line);border-radius:18px;box-shadow:0 8px 25px #20254b05}.chat-panel{min-height:570px;display:flex;flex-direction:column;overflow:hidden}.panel-head{display:flex;align-items:center;gap:11px;padding:18px 21px;border-bottom:1px solid var(--line)}.assistant-icon{display:grid;place-items:center;width:38px;height:38px;border-radius:13px;background:#eeeaff;color:var(--purple);font-size:23px}.panel-head strong,.panel-head small{display:block}.panel-head strong{font-size:13px}.panel-head small{font-size:10px;color:var(--muted);margin-top:5px}.online-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:#2cc48a;margin-right:4px}.demo-tag{margin-left:auto;background:#f1efff;color:#6c5ae4;font-size:9px;letter-spacing:1px;padding:6px 8px;border-radius:6px;font-weight:700}.chat-messages{padding:22px 20px 12px;display:flex;flex-direction:column;gap:18px;flex:1;min-height:260px;max-height:410px;overflow:auto}.message{display:flex;gap:9px;align-items:flex-start;max-width:95%}.message.user-message{align-self:flex-end;flex-direction:row-reverse}.mini-avatar{flex:0 0 27px;height:27px;border-radius:9px;display:grid;place-items:center;background:#eeeaff;color:var(--purple);font-size:15px}.user-message .mini-avatar{background:#25223f;color:#fff;font-size:11px}.bubble-wrap{min-width:0}.sender{font-size:10px;color:#777d94;font-weight:700;margin:1px 0 6px}.user-message .sender{text-align:right}.bubble{font-size:12px;line-height:1.65;padding:12px 14px;border-radius:4px 13px 13px 13px;background:#f5f5fa;color:#373b50;white-space:pre-line}.user-message .bubble{background:#6e5be8;color:white;border-radius:13px 4px 13px 13px}.inline-actions{display:flex;gap:7px;flex-wrap:wrap;margin-top:9px}.inline-actions button{font:600 10px 'DM Sans';padding:7px 9px;border:1px solid #e1ddff;background:#fff;color:#6352d7;border-radius:8px;cursor:pointer}.suggestions{display:flex;flex-wrap:wrap;gap:7px;padding:0 20px 15px}.suggestion{background:#fff;border:1px solid #e5e2f8;color:#6758c8;border-radius:20px;padding:8px 11px;font:500 10px 'DM Sans';cursor:pointer}.suggestion:hover{background:#f5f2ff}.composer{display:flex;gap:9px;align-items:center;padding:12px 14px;margin:0 15px;border:1px solid #e5e5ef;border-radius:13px;background:#fcfcff}.composer input{min-width:0;flex:1;border:0;outline:0;background:transparent;font:12px 'DM Sans';color:var(--ink)}.composer input::placeholder{color:#a1a5b6}.send-button{border:0;border-radius:9px;width:32px;height:32px;background:var(--purple);color:white;font-size:21px;cursor:pointer}.privacy-note{text-align:center;color:#a1a5b6;font-size:9px;padding:12px}.plan-column{display:flex;flex-direction:column;gap:15px}.plan-panel{padding:21px 20px}.plan-title-row{display:flex;justify-content:space-between;align-items:center}.plan-title-row h3{font:800 20px Manrope;margin:7px 0 0;letter-spacing:-.5px}.calendar-icon{width:35px;height:35px;display:grid;place-items:center;background:#f1efff;color:var(--purple);border-radius:11px;font-size:19px}.plan-subtitle{font-size:11px;line-height:1.6;color:var(--muted);margin:13px 0 18px}.study-plan{display:flex;flex-direction:column;gap:10px}.empty-plan{align-items:center;text-align:center;padding:25px 12px 28px;color:var(--muted)}.empty-icon{font-size:30px;color:#9a8bf4;margin-bottom:4px}.empty-plan strong{font-size:12px;color:#3a3e53}.empty-plan span{font-size:11px;line-height:1.6;max-width:210px}.task-row{display:flex;gap:10px;align-items:flex-start;border:1px solid #eeeef5;padding:11px;border-radius:11px}.task-check{appearance:none;flex:0 0 16px;width:16px;height:16px;border:1.5px solid #c8c5e7;border-radius:5px;margin:2px 0 0;cursor:pointer}.task-check:checked{background:var(--purple);border-color:var(--purple)}.task-check:checked:after{content:'✓';display:block;color:#fff;font-size:11px;text-align:center;line-height:14px}.task-content{flex:1;min-width:0}.task-content strong{display:block;font-size:11px;line-height:1.5}.task-content small{display:block;color:var(--muted);font-size:10px;margin-top:4px}.task-row.is-done{background:#f7fcf9}.task-row.is-done .task-content strong{text-decoration:line-through;color:#8a91a3}.task-duration{white-space:nowrap;font-size:10px;color:#6c5be3;background:#f2f0ff;border-radius:6px;padding:5px 6px}.plan-footer{border-top:1px solid var(--line);padding-top:14px;margin-top:15px;display:flex;align-items:center;gap:7px;color:var(--muted);font-size:10px}.task-dot{width:7px;height:7px;border-radius:50%;background:#a99cfb}.tip-card{display:flex;gap:11px;background:#f0edff;border:1px solid #e5e0ff;border-radius:15px;padding:16px}.tip-icon{flex:0 0 29px;height:29px;border-radius:9px;background:#fff;color:var(--purple);display:grid;place-items:center}.tip-card strong{font-size:11px}.tip-card p{font-size:10px;line-height:1.65;color:#6e6b88;margin:5px 0 0}footer{text-align:center;color:#a1a5b6;font-size:10px;padding:23px 0 0}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
@media(max-width:980px){.app-shell{grid-template-columns:190px minmax(0,1fr)}.welcome-row{grid-template-columns:1fr}.progress-card{max-width:none}.workspace{grid-template-columns:1fr}.plan-column{display:grid;grid-template-columns:1fr 1fr}.chat-panel{min-height:500px}}
@media(max-width:650px){.app-shell{display:block}.sidebar{min-height:0;padding:14px 15px;display:block}.brand{padding:0 4px 12px}.simulation-pill{margin:0 0 10px;display:inline-flex}.sidebar-label,.nav-item,.sidebar-bottom{display:none}.main{padding:23px 14px}.topbar h1{font-size:24px}.date-chip{display:none}.welcome-row{margin:25px 0 18px;gap:16px}.workspace{gap:14px}.chat-panel{min-height:530px}.plan-column{display:flex}.chat-messages{padding:18px 13px}.suggestions{padding:0 13px 13px}.composer{margin:0 10px}.plan-panel{padding:18px}}