@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{--ink:#18243d;--muted:#71809b;--line:#e6ebf4;--blue:#3769e8;--blue2:#5d85f5;--bg:#f5f7fc;--white:#fff;--navy:#17284d;--green:#159b79;--shadow:0 16px 45px rgba(36,57,100,.08)}*{box-sizing:border-box}body{margin:0;background:var(--bg);color:var(--ink);font-family:'DM Sans',sans-serif}button,input,select,textarea{font:inherit}button{cursor:pointer} .hidden{display:none!important}.auth-shell{min-height:100vh;display:grid;grid-template-columns:minmax(360px, .95fr) 1.05fr;background:#fff}.auth-art{padding:48px 8%;display:flex;flex-direction:column;justify-content:space-between;color:white;background:radial-gradient(circle at 80% 25%,#577ff0 0,transparent 30%),linear-gradient(145deg,#172c59,#244eaa 65%,#4d79e8);position:relative;overflow:hidden}.auth-art:after{content:'';position:absolute;width:520px;height:520px;border:1px solid #ffffff20;border-radius:50%;right:-220px;bottom:-200px;box-shadow:0 0 0 55px #ffffff08,0 0 0 110px #ffffff06}.brand{display:flex;align-items:center;gap:11px;font:800 21px Manrope,sans-serif;letter-spacing:-.6px}.brand img{width:40px;height:40px}.brand b{font-size:10px;background:#ffffff24;padding:5px 7px;border-radius:6px;letter-spacing:1px}.art-copy{max-width:550px;position:relative;z-index:1}.eyebrow{font-size:10px;font-weight:700;letter-spacing:1.6px;color:#6481bc}.eyebrow.light{color:#c7d7ff}.art-copy h1{font:800 clamp(42px,5vw,68px)/1.08 Manrope,sans-serif;letter-spacing:-2.5px;margin:22px 0}.art-copy p{font-size:17px;line-height:1.8;color:#dbe5ff;max-width:440px}.art-pills{display:flex;gap:9px;flex-wrap:wrap;margin-top:30px}.art-pills span{border:1px solid #ffffff40;border-radius:30px;padding:9px 14px;font-size:12px}.art-foot{font-size:12px;color:#c6d5f6;position:relative;z-index:1}.auth-panel{display:grid;place-items:center;padding:36px}.auth-card{width:min(440px,100%)}.mobile-brand{display:none;color:var(--ink);margin-bottom:30px}.auth-tabs{display:flex;gap:24px;border-bottom:1px solid var(--line);margin-bottom:35px}.tab{border:0;background:none;color:#8491a8;padding:0 0 14px;font-weight:700}.tab.active{color:var(--blue);border-bottom:2px solid var(--blue)}h2,h1,h3,p{margin-top:0}.auth-form h2{font:800 28px Manrope;margin-bottom:8px}.muted{color:var(--muted);line-height:1.6}.auth-form>p{margin-bottom:26px}.auth-form label,.dialog label{display:block;font-size:12px;font-weight:700;color:#44536f;margin:18px 0}.auth-form input,.dialog input,.dialog select,.dialog textarea,.filter-row input,.filter-row select{display:block;width:100%;border:1px solid #dce3ef;background:#fbfcff;border-radius:11px;padding:14px 15px;margin-top:8px;outline:none;color:var(--ink);transition:.2s}.auth-form input:focus,.dialog input:focus,.dialog select:focus,.dialog textarea:focus{border-color:#7d9cf4;box-shadow:0 0 0 3px #3769e815}.primary{border:0;border-radius:11px;padding:14px 19px;color:#fff;font-weight:700;background:linear-gradient(100deg,var(--blue),#5482f4);box-shadow:0 8px 18px #3769e82a}.primary:hover{filter:brightness(1.04)}.primary:disabled{opacity:.6;cursor:wait}.full{width:100%;margin-top:12px}.text-button{border:0;background:none;color:var(--blue);padding:0;font-size:12px;font-weight:700}.align-right{display:block;margin-left:auto;margin-top:-5px}.check{display:flex!important;align-items:center;gap:9px}.check input{width:auto;margin:0}.tiny{font-size:11px;line-height:1.6}.center{text-align:center;margin-top:25px}.message{font-size:12px;line-height:1.5;margin-top:14px;color:#52627d}.message.error{color:#c33c51}.message.success{color:#168466}.app-shell{min-height:100vh;display:grid;grid-template-columns:255px 1fr}.sidebar{background:#fff;border-right:1px solid var(--line);padding:27px 17px;display:flex;flex-direction:column;min-height:100vh}.side-brand{padding:0 13px 38px;color:#20345d}.side-brand img{width:35px;height:35px}.side-brand span{font-size:19px}.side-label{font-size:9px;letter-spacing:1.5px;font-weight:700;color:#a0abc0;padding:12px 13px}.nav-link{border:0;background:transparent;color:#64728d;text-align:left;padding:13px;border-radius:10px;margin:2px 0;font-size:13px;font-weight:600;display:flex;gap:13px;align-items:center}.nav-link span{font-size:18px;width:20px;text-align:center}.nav-link.active{background:#edf2ff;color:var(--blue)}.nav-link:hover{background:#f5f7fc}.sidebar-bottom{margin-top:auto}.help-card{background:linear-gradient(145deg,#f0f4ff,#f8faff);border:1px solid #e5ebfb;padding:17px;border-radius:14px;margin:15px 4px 18px}.help-card strong{font-size:12px}.help-card p{font-size:11px;line-height:1.6;color:var(--muted);margin:8px 0 0}.signout{width:100%}.main-area{min-width:0}.topbar{height:78px;background:#fff;border-bottom:1px solid var(--line);display:flex;align-items:center;padding:0 38px;gap:22px}.icon-button{border:0;background:#f3f6fc;color:#586783;border-radius:9px;width:38px;height:38px;font-size:19px}.breadcrumb{font-size:12px;color:#8995a9}.breadcrumb span{padding:0 9px;color:#c2cad8}.breadcrumb strong{color:var(--ink)}.top-actions{margin-left:auto;display:flex;align-items:center;gap:15px}.role-pill{font-size:9px;letter-spacing:1px;font-weight:800;color:#5574c7;background:#edf2ff;padding:7px 10px;border-radius:20px}.role-pill.admin{color:#138467;background:#e7f7f1}.user-chip{background:white;border:1px solid var(--line);border-radius:30px;padding:9px 13px;font-size:12px;color:#53627e}.content{padding:35px 42px 55px;max-width:1500px;margin:auto}.welcome-banner{background:linear-gradient(110deg,#254b9b,#3978e9 75%,#6393f5);color:white;border-radius:22px;padding:42px 46px;min-height:250px;display:flex;justify-content:space-between;align-items:center;overflow:hidden;position:relative;box-shadow:0 15px 35px #2f62c31c}.welcome-banner h1{font:800 clamp(28px,3vw,42px) Manrope;letter-spacing:-1.3px;margin:15px 0 10px}.welcome-banner p{color:#e0eaff;max-width:560px;line-height:1.7;font-size:14px}.white-button{border:0;background:#fff;color:#2859bc;border-radius:10px;padding:12px 17px;font-size:12px;font-weight:700;margin-top:13px}.white-button span{padding-left:15px}.banner-orbit{width:190px;height:190px;border:1px solid #ffffff40;border-radius:50%;display:grid;place-items:center;position:relative;margin-right:35px;flex-shrink:0}.banner-orbit:before,.banner-orbit:after{content:'';position:absolute;border:1px solid #ffffff35;border-radius:50%;inset:17px}.banner-orbit:after{inset:37px}.orbit-core{width:80px;height:80px;border-radius:23px;background:#ffffff20;display:grid;place-items:center;font:800 32px Manrope;backdrop-filter:blur(4px)}.orbit-core span{font-size:13px;position:absolute;margin:0 0 0 35px;color:#d5e5ff}.banner-orbit i{position:absolute;width:8px;height:8px;border-radius:50%;background:#b9d4ff}.banner-orbit i:nth-of-type(1){top:16px;right:38px}.banner-orbit i:nth-of-type(2){bottom:28px;left:10px}.banner-orbit i:nth-of-type(3){right:8px;bottom:54px}.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px;margin:22px 0 38px}.stat-card{background:#fff;border:1px solid var(--line);border-radius:16px;padding:20px;display:grid;grid-template-columns:40px 1fr;column-gap:12px;align-items:center;box-shadow:0 6px 20px #24396408}.stat-icon,.quick-icon{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-size:18px;grid-row:span 2}.lilac{background:#f0edff;color:#7662d7}.mint{background:#e6f8f1;color:#219b78}.peach{background:#fff2e9;color:#dc8c50}.stat-label{font-size:11px;color:var(--muted)}.stat-card strong{font:800 22px Manrope;margin-top:2px}.stat-card small{grid-column:2;color:#97a2b6;font-size:10px}.section-heading{display:flex;align-items:end;justify-content:space-between;margin-bottom:17px}.section-heading h2,.page-title-row h1{font:800 24px Manrope;margin:7px 0 0;letter-spacing:-.5px}.quick-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:17px}.quick-card{position:relative;text-align:left;border:1px solid var(--line);border-radius:16px;background:#fff;padding:22px;display:flex;flex-direction:column;gap:10px;box-shadow:0 6px 20px #24396408}.quick-card:hover{transform:translateY(-2px);box-shadow:var(--shadow)}.quick-icon{grid-row:auto}.quick-icon.blue{background:#eaf1ff;color:#3d6fe3}.quick-icon.violet{background:#f1edff;color:#7963d9}.quick-icon.green{background:#e7f8f0;color:#159b79}.quick-card strong{font-size:14px}.quick-card small{font-size:11px;color:var(--muted)}.arrow{position:absolute;right:20px;top:23px;color:#98a6c0}.notice{display:flex;gap:14px;background:#f0f5ff;border:1px solid #e1eafe;padding:17px 20px;border-radius:13px;margin-top:24px}.notice>span{color:#5078dc;font-size:20px}.notice strong{font-size:12px}.notice p{font-size:11px;color:#73819a;margin:5px 0 0;line-height:1.5}.page-title-row{display:flex;align-items:center;justify-content:space-between;margin-bottom:25px}.page-title-row p{margin:8px 0 0;font-size:13px}.filter-row{display:flex;gap:12px;margin-bottom:18px}.filter-row input{max-width:420px;margin:0}.filter-row select{max-width:220px;margin:0}.materials-grid{display:grid;gap:12px}.material-card{background:white;border:1px solid var(--line);border-radius:14px;padding:17px;display:flex;align-items:center;gap:16px}.file-icon{width:44px;height:48px;border-radius:10px;background:#fff0f0;color:#d65d69;display:grid;place-items:center;font-size:10px;font-weight:800}.material-meta{flex:1;min-width:0}.material-meta span{font-size:10px;color:#6982bd}.material-meta h3{font:700 14px Manrope;margin:5px 0}.material-meta p{font-size:11px;color:var(--muted);margin:0}.open-file{font-size:11px;color:var(--blue);text-decoration:none;font-weight:700}.curriculum-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.curriculum-card,.account-card{background:#fff;border:1px solid var(--line);border-radius:15px;padding:22px}.curriculum-card>span{color:#6d88d1;font-size:10px;font-weight:800}.curriculum-card h3{font:700 16px Manrope;margin:14px 0 6px}.curriculum-card p{font-size:11px;color:var(--muted);margin:0}.account-card{display:flex;align-items:center;gap:18px;max-width:600px}.avatar{width:54px;height:54px;background:#eaf0ff;color:#426bd2;border-radius:17px;display:grid;place-items:center;font:800 22px Manrope}.account-card h2{font:700 18px Manrope;margin:0 0 5px}.account-card p{font-size:12px;color:var(--muted);margin:0 0 10px}.empty-state{background:white;border:1px dashed #d8e0ee;border-radius:16px;padding:45px;text-align:center;color:var(--muted)}.empty-state h2{color:var(--ink);font:700 19px Manrope;margin:10px 0}.empty-state p{font-size:12px}.empty-symbol{font-size:34px;color:#8ca4e5}.loading{padding:30px;text-align:center;color:var(--muted);font-size:12px}.dialog{border:0;border-radius:19px;padding:27px;width:min(570px,calc(100% - 28px));box-shadow:0 30px 90px #17284d45}.dialog::backdrop{background:#14213dcc;backdrop-filter:blur(4px)}.dialog-head{display:flex;align-items:center;justify-content:space-between}.dialog-head h2{font:800 22px Manrope;margin:7px 0}.dialog>form>p{font-size:12px}.dialog label{margin:15px 0}.dialog textarea{resize:vertical}.form-row{display:grid;grid-template-columns:1fr 1fr;gap:12px}.upload-progress{height:5px;background:#e8edf7;border-radius:8px;overflow:hidden}.upload-progress div{height:100%;width:30%;background:var(--blue)}.toast{position:fixed;right:22px;bottom:22px;z-index:20;background:#1c2d50;color:white;padding:13px 18px;border-radius:10px;font-size:12px;opacity:0;transform:translateY(10px);pointer-events:none;transition:.2s;max-width:min(420px,calc(100vw - 44px))}.toast.show{opacity:1;transform:none}.toast.error{background:#9f3347}.toast.success{background:#167b63}
@media(max-width:900px){.auth-shell{grid-template-columns:1fr}.auth-art{display:none}.mobile-brand{display:flex}.auth-panel{padding:25px}.app-shell{grid-template-columns:1fr}.sidebar{position:fixed;z-index:10;left:0;top:0;width:260px;transform:translateX(-105%);transition:.2s;box-shadow:var(--shadow)}.sidebar.open{transform:none}.topbar{padding:0 18px}.content{padding:24px 18px}.banner-orbit{width:130px;height:130px;margin-right:0}.stats-grid{gap:10px}.stat-card{padding:14px}.quick-grid{gap:10px}}
@media(max-width:600px){.topbar{height:65px;gap:12px}.breadcrumb{font-size:10px}.role-pill{display:none}.user-chip{font-size:10px;padding:8px}.welcome-banner{padding:27px 23px;min-height:230px}.welcome-banner h1{font-size:29px}.welcome-banner p{font-size:12px;max-width:95%}.banner-orbit{display:none}.stats-grid{grid-template-columns:1fr 1fr}.stat-card:last-child{grid-column:span 2}.quick-grid,.curriculum-grid{grid-template-columns:1fr}.quick-card{padding:18px}.page-title-row{align-items:flex-start;gap:10px;flex-direction:column}.filter-row{flex-direction:column}.filter-row input,.filter-row select{max-width:none}.material-card{align-items:flex-start;flex-wrap:wrap}.material-meta{min-width:calc(100% - 65px)}.open-file{margin-left:60px}.form-row{grid-template-columns:1fr}.dialog{padding:21px}.auth-panel{padding:20px}.auth-card{max-width:420px}}

/* Google OAuth buttons */
.auth-divider{display:flex;align-items:center;gap:12px;margin:17px 0 5px;color:#9aa6ba;font-size:10px;font-weight:700;letter-spacing:1px}
.auth-divider:before,.auth-divider:after{content:"";height:1px;background:var(--line);flex:1}
.google-button{display:flex;align-items:center;justify-content:center;gap:12px;border:1px solid #dce3ef;border-radius:11px;background:#fff;color:#26334d;padding:12px 16px;font-size:13px;font-weight:700;transition:.2s}
.google-button:hover{background:#f8faff;border-color:#b9c8e4;box-shadow:0 5px 15px rgba(36,57,100,.07)}
.google-button svg{width:18px;height:18px;flex:none}