:root{--bg:#f7fafc;--panel:#fff;--text:#0d2344;--muted:#72809a;--line:#e6ebf2;--green:#18a85f;--green2:#eaf8f0;--blue:#3b6ff6;--orange:#f29b2f;--purple:#8058e8;--shadow:0 12px 32px rgba(32,55,90,.08);--radius:18px}*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",sans-serif;background:var(--bg);color:var(--text)}button,input,select,textarea{font:inherit}.hidden{display:none!important}.muted{color:var(--muted)}.small{font-size:13px}.logo{display:flex;gap:9px;align-items:center;text-decoration:none;color:var(--text);font-weight:800;font-size:27px;letter-spacing:-1.3px}.logo>span:last-child>span{color:var(--green)}.logo-mark{font-size:31px}.logo-xl{font-size:38px}.auth-shell{min-height:100vh;display:grid;grid-template-columns:1.15fr .85fr;background:radial-gradient(circle at 20% 20%,#eaf9f1,transparent 38%),radial-gradient(circle at 80% 70%,#edf3ff,transparent 35%),#f9fbfd}.auth-brand{padding:10vh 9vw;display:flex;flex-direction:column;justify-content:center}.auth-brand h1{font-size:56px;line-height:1.02;letter-spacing:-2.5px;margin:44px 0 20px;max-width:620px}.auth-brand>p{font-size:20px;line-height:1.65;max-width:650px;color:var(--muted)}.auth-features{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:28px;max-width:550px}.auth-features span{background:#fff;border:1px solid var(--line);padding:14px 16px;border-radius:14px}.auth-card{align-self:center;margin:40px 8vw 40px 0;background:#fff;border:1px solid var(--line);border-radius:28px;padding:32px;box-shadow:var(--shadow);max-width:470px;width:calc(100% - 40px)}.auth-tabs{display:grid;grid-template-columns:1fr 1fr;background:#f3f6f9;padding:5px;border-radius:13px;margin-bottom:26px}.auth-tabs button{border:0;background:transparent;padding:11px;border-radius:10px;font-weight:700;color:var(--muted);cursor:pointer}.auth-tabs button.active{background:#fff;color:var(--text);box-shadow:0 3px 12px rgba(0,0,0,.07)}.stack{display:grid;gap:16px}.stack h2{margin:0 0 8px}.stack label{display:grid;gap:7px;font-size:14px;font-weight:650}.stack input,.stack select,.stack textarea,.field{border:1px solid #dfe5ed;background:#fff;border-radius:12px;padding:12px 13px;color:var(--text);outline:none;width:100%}.stack input:focus,.stack select:focus,.stack textarea:focus,.field:focus{border-color:#8dd0ad;box-shadow:0 0 0 3px #e8f7ef}.btn{border:0;border-radius:12px;padding:12px 16px;font-weight:750;cursor:pointer}.btn.primary{background:linear-gradient(135deg,#16a45c,#0f9150);color:#fff}.btn.secondary{background:#eef3f8;color:var(--text)}.btn.danger{background:#fff0f0;color:#c53b3b}.btn.small{padding:8px 11px;font-size:13px}.app{display:grid;grid-template-columns:285px 1fr;min-height:100vh}.sidebar{background:#fff;border-right:1px solid var(--line);padding:22px 16px;position:fixed;inset:0 auto 0 0;width:285px;overflow:auto;z-index:20}.sidebar .logo{padding:2px 13px 24px}.sidebar nav{display:grid;gap:4px}.sidebar nav p{font-size:11px;color:var(--muted);letter-spacing:.06em;margin:18px 12px 5px;font-weight:800}.sidebar nav a{display:flex;gap:12px;align-items:center;text-decoration:none;color:#173255;padding:10px 13px;border-radius:11px;font-size:14px}.sidebar nav a.active{background:var(--green2);color:#087a42;font-weight:700}.sidebar nav a:hover{background:#f5f8fa}.sidebar nav b{font-size:9px;color:#078046;background:#e8f8ef;border:1px solid #bde8ce;border-radius:999px;padding:3px 6px;margin-left:auto}.plus-card{margin-top:22px;padding:17px;border-radius:15px;background:linear-gradient(135deg,#fff8ea,#fff);border:1px solid #f5ead6;position:relative;overflow:hidden}.plus-card p{font-size:12px;color:#536178;line-height:1.5;margin:6px 35px 0 0}.plus-card span{position:absolute;right:12px;bottom:9px;font-size:32px}.app main{grid-column:2}.topbar{height:76px;border-bottom:1px solid 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.stack{max-width:620px}.note-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.note-card{border:1px solid var(--line);border-radius:14px;padding:16px;background:#fff}.note-card p{white-space:pre-wrap;color:#536178;line-height:1.55}.stats-row{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:16px}.stat{background:#f8fafb;border:1px solid var(--line);border-radius:12px;padding:13px}.stat strong{font-size:20px}.stat small{display:block;color:var(--muted);margin-top:4px}.ai-answer{white-space:pre-wrap;line-height:1.7;background:#f8fafc;border:1px solid var(--line);border-radius:14px;padding:18px;margin-top:14px}.toast{position:fixed;right:24px;bottom:24px;background:#0d2344;color:#fff;padding:12px 16px;border-radius:12px;box-shadow:var(--shadow);z-index:100;transform:translateY(90px);opacity:0;transition:.25s;max-width:340px}.toast.show{transform:translateY(0);opacity:1}.mobile{display:none}body.dark{--bg:#0d1420;--panel:#131d2a;--text:#eaf0f7;--muted:#97a5b8;--line:#263345;--green2:#173526}body.dark .sidebar,body.dark .topbar,body.dark .tool-card,body.dark .auth-card,body.dark .auth-features span,body.dark .quick,body.dark .profile-pill,body.dark .icon-btn,body.dark .stack input,body.dark .stack select,body.dark .stack textarea,body.dark .field,body.dark .note-card{background:#131d2a;color:var(--text)}body.dark .hero{background:linear-gradient(120deg,#162131,#122438)}body.dark .day,body.dark .stat,body.dark .global-search{background:#101925}.empty{padding:24px;text-align:center;color:var(--muted);border:1px dashed #d4dde8;border-radius:12px}@media(max-width:1100px){.app{grid-template-columns:230px 1fr}.sidebar{width:230px}.tool-grid{grid-template-columns:repeat(2,1fr)}.schedule-week{grid-template-columns:repeat(4,1fr)}.hero-grid,.dashboard-lower{grid-template-columns:1fr}.hero-illustration{opacity:.35}.quick-grid{width:100%}.auth-brand{padding:8vh 6vw}.auth-brand h1{font-size:44px}}@media(max-width:780px){.auth-shell{grid-template-columns:1fr}.auth-brand{padding:38px 24px 10px}.auth-brand h1{font-size:38px;margin:25px 0 12px}.auth-card{margin:20px auto 40px}.app{display:block}.sidebar{transform:translateX(-100%);transition:.25s;width:270px;box-shadow:var(--shadow)}.sidebar.open{transform:none}.app main{grid-column:auto}.mobile{display:block}.topbar{padding:0 14px}.global-search{width:auto;flex:1}.top-actions #topName{display:none}.content{padding:18px 14px 40px}.hero h1{font-size:30px}.hero-illustration{display:none}.quick-grid,.tool-grid,.two-col,.form-row,.note-grid,.stats-row{grid-template-columns:1fr 1fr}.schedule-week{grid-template-columns:1fr 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