/* Shared visual system for every campus screen. */
:root{--blue:#0874f9;--navy:#092951;--muted:#60718a;--line:#e4ebf4;--surface:#fff;--shadow:0 8px 32px #14396706}
body{background:#f5f8fd;color:#172d50;font-family:'Segoe UI',Arial,sans-serif}
h1,h2,h3,h4{color:#102950}h1{font-size:clamp(1.8rem,2.7vw,2.4rem);letter-spacing:-.045em}h2{font-size:1.45rem}h3{font-size:1.15rem}
.sidebar{width:240px;padding:28px 16px;background:#fff;background-image:none;border-right:1px solid var(--line);color:#314569}
.sidebar .brand{color:#102950;padding:0 10px;font-size:1.4rem;display:flex;align-items:center;gap:3px;white-space:nowrap}.brand .edu-icon{color:#0874f9;width:30px;height:30px}.school{color:#71819a;font-size:.8rem;margin:10px 10px 34px}.nav-label{color:#8493ab;font-size:.7rem;letter-spacing:.12em}.nav{font-size:.92rem;padding:14px 16px;display:flex;align-items:center;gap:7px;margin:7px 0;border-radius:11px}.nav .edu-icon{width:22px;height:22px;margin:0 7px 0 0}.nav:hover{background:#edf5ff;color:#0874f9}.nav.active{background:#0874f9;color:#fff;border-color:#0874f9;box-shadow:0 5px 12px #0874f920}.sidebar-bottom{color:#71819a;font-size:.8rem;padding-left:14px}.dot{background:#22bd87}
.workspace{margin-left:240px}header{min-height:82px;padding:16px 32px;background:#ffffffed;border-bottom:1px solid var(--line);gap:16px}header>span{font-size:.88rem;color:#62758e}.header-tools{gap:22px}.profile{font-size:.88rem}.profile small{font-size:.75rem}.avatar{background:#ebf4ff;color:#0874f9;border:1px solid #dbeaff}.reading-label{font-size:.75rem}.reading-tools button{min-width:36px;min-height:36px;padding:6px;font-size:.8rem;border-radius:8px;background:#f7f9fc;border-color:#e4ebf4}.reading-tools button[aria-pressed=true]{background:#edf5ff;border-color:#b8d9ff;color:#075ac5}
.content{max-width:1600px;padding:30px 32px 48px}.content>.eyebrow{color:#0874f9}.content>h1{margin:8px 0 10px}.content>h1+.muted{margin-bottom:28px}.eyebrow{font-size:.72rem;letter-spacing:.08em;color:#637b9b}.page-title{margin-bottom:26px}.page-title h1{margin-top:8px}.page-title .muted{margin-top:8px}.badge{border-color:#e0ebfa;background:#f0f6ff;color:#47678d;padding:7px 11px;font-size:.8rem;border-radius:8px}
.panel{background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);border-radius:16px;padding:26px;margin-bottom:24px}.panel>h2{font-size:1.18rem;margin-bottom:22px}.panel>h2:before{content:'';display:inline-block;width:4px;height:18px;background:#0874f9;border-radius:4px;margin-right:10px;vertical-align:-3px}.section-heading h2{font-size:1.3rem}.back{color:#52739b;font-size:.88rem}.back:hover{color:#0874f9}
.primary,.secondary,button{font-size:.9rem;border-radius:9px;min-height:44px}.primary{background:#0874f9;box-shadow:0 4px 10px #0874f91a}.primary:hover{background:#0562da}.secondary{background:#f0f6ff;border:1px solid #dceaff;color:#1167cc}.secondary:hover{background:#e4f0ff}.quiet{color:#607491}.danger{background:#fff3f4;color:#b63c55;border-color:#ffdee5}.full{width:100%}
.dashboard-hero{grid-template-columns:minmax(0,1.9fr) minmax(260px,1fr);gap:18px}.dashboard-hero .welcome{background:radial-gradient(ellipse at 95% 100%,#1c78cb66,transparent 60%),linear-gradient(115deg,#061d43,#07437f);min-height:224px;border-radius:18px;padding:30px 34px;isolation:isolate}.welcome:before{width:150px;height:150px;inset:-70px 80px auto auto;border:1px solid #ffffff16;border-radius:50%;background:none;box-shadow:0 0 0 35px #ffffff04,0 0 0 70px #ffffff03;z-index:-1}.welcome h1{color:#fff;font-size:clamp(1.9rem,3vw,2.8rem)}.welcome p{font-size:.94rem;line-height:1.6}.hero-link{font-size:.86rem;background:#ffffff12;padding:9px 14px;border:1px solid #ffffff22;border-radius:8px;margin-top:18px}.robot-art{color:#a5dcff;padding:10px 0 10px 20px;transform:rotate(-7deg)}.robot-art .edu-icon{width:116px;height:116px;stroke-width:1.2;filter:drop-shadow(0 10px 10px #00153366)}.dashboard-stats .panel{border-radius:16px;padding:20px;gap:16px}.dashboard-stats strong{font-size:.9rem}.dashboard-stats p{font-size:.85rem;margin:6px 0}.stat-icon{background:linear-gradient(135deg,#ffd54b,#ffad08);border-radius:12px;font-size:28px}.stat-icon.teal{background:#e0f9f4}.learning-shortcuts{gap:16px}.learning-shortcuts .panel{transition:border-color .15s,transform .15s}.learning-shortcuts .panel:hover{border-color:#a6d1ff;transform:translateY(-2px)}.learning-shortcuts h3{font-size:1rem}.learning-shortcuts p{font-size:.8rem;line-height:1.55}.learning-shortcuts .panel>span{padding:11px;font-size:22px}.learning-shortcuts .panel:nth-child(2)>span{background:#e8faf7;color:#129782}.learning-shortcuts .panel:nth-child(3)>span{background:#fff3dd;color:#be7a08}
.course-grid{grid-template-columns:repeat(auto-fit,minmax(min(100%,265px),1fr));gap:20px}.course-cover{min-height:110px;height:110px;display:block;background:linear-gradient(120deg,#86baff,#a9d1ff);padding:18px}.cover-1{background:linear-gradient(120deg,#ffd16b,#ffe1a0)}.cover-2{background:linear-gradient(120deg,#83dfdc,#b1efeb)}.cover-3{background:linear-gradient(120deg,#ffb285,#ffcfb0)}.cover-symbol{top:28px;right:26px;color:#0b3c6e;opacity:.9}.cover-symbol .edu-icon{width:54px;height:54px}.cover-label{font-size:.65rem;color:#184776;max-width:60%;display:block;line-height:1.6}.course-cover:after{width:130px;height:130px;top:-35px;right:-30px;border-color:#ffffff70;box-shadow:0 0 0 25px #ffffff16}.course-info{padding:22px}.course-info h3{font-size:1.08rem;margin:10px 0}.course-info p{font-size:.85rem;margin-bottom:18px}.course-footer{padding-top:16px}.course-footer>span{font-size:.75rem}.course-footer .primary{font-size:.84rem;min-height:40px;padding:9px 14px}.participants-link{font-size:.8rem;border-top:1px solid #edf2f9;padding-top:14px}.grade-card .grade-icon{display:inline-grid;place-items:center;width:65px;height:65px;background:#edf5ff;border-radius:16px}.grade-card h2{margin-top:20px}.grade-courses{border-top:1px solid var(--line);padding-top:18px;font-size:.9rem}
.tabs{background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px;gap:6px;box-shadow:var(--shadow);margin:24px 0}.tabs a{font-size:.88rem;min-height:42px;padding:10px 20px}.tabs a:hover{background:#edf5ff;color:#0874f9}.tabs .selected,.tabs .selected:hover{background:#0874f9;color:#fff;box-shadow:0 3px 9px #0874f91a}.table-wrap{border-color:#e6edf6;border-radius:12px}table{font-size:.92rem}th{background:#f4f8fd;color:#526e91;font-size:.76rem;padding:16px 18px;letter-spacing:.025em}td{padding:18px;border-color:#edf2f8}tbody tr:nth-child(even){background:#fbfcff}tbody tr:hover{background:#f3f8ff}.unit-number{width:42px;min-height:42px;background:#edf5ff;color:#0874f9;font-size:.9rem}.participant-name strong{font-weight:600;color:#1a548f}.participant-filter{padding:18px;background:#f7faff;border:1px solid #e8eff8;border-radius:12px;margin-bottom:22px}.participant-filter label{font-size:.85rem}.participant-filter input{background:#fff}.participant-filter .secondary{background:#fff}.topic-grid{gap:14px}.topic-link{border-color:#e5edf8;background:#fbfdff;border-radius:12px;position:relative;padding:18px 20px;border-left:3px solid #b9d9ff}.topic-link strong{font-size:.95rem}.topic-link span{color:#0874f9}.topic-link small{font-size:.75rem}
.unit-layout{grid-template-columns:240px minmax(0,1fr);gap:24px}.category-nav{border-color:var(--line);box-shadow:var(--shadow);padding:12px}.category-nav .nav-label{font-size:.68rem;letter-spacing:.09em;color:#8193ac}.category-nav a{font-size:.86rem;color:#506986;border-radius:9px;padding:12px}.category-nav a:hover{background:#f1f7ff}.category-nav .selected{background:#edf5ff;border-color:#dceaff;color:#0874f9;box-shadow:inset 3px 0 #0874f9}.material{border-color:#e9eff7;padding-top:24px}.material h3{font-size:1.2rem}.material-body{font-size:1rem;line-height:1.8}.meta,.help-text,.file-name{font-size:.8rem;color:#687e9a}.work-box{background:#f6faff;border-color:#dceafb;border-radius:14px}.work-box h4{color:#174375;font-size:1rem}.feedback{border-left-color:#0874f9;background:#edf6ff;border-radius:0 10px 10px 0}.review-stats .badge{background:#fff;padding:11px 16px}.review-card .section-heading{border-bottom:1px solid var(--line);padding-bottom:18px}.grading-form{border-color:var(--line)}
label{font-size:.86rem;color:#49617f}input,select,textarea{font-size:.95rem;border-color:#d7e1ee;border-radius:9px;background:#fcfdff;min-height:46px;padding:12px 14px}input:hover,select:hover,textarea:hover{border-color:#abc7e9}input:focus,select:focus,textarea:focus{background:#fff;border-color:#0874f9;outline:3px solid #0874f91c}input::placeholder,textarea::placeholder{color:#8192aa}.admin-grid{gap:20px}.admin-grid .panel{border-top:3px solid #84baff}.assignment{border-color:var(--line)}.storage-status{background:#f8fbff;padding:12px 20px;border-style:dashed;box-shadow:none}.storage-status summary{font-size:.85rem;color:#627a99}.empty{background:linear-gradient(180deg,#fff,#f9fcff);border-radius:12px}.empty h3{font-size:1.1rem}.empty p{font-size:.92rem}.alert{border-radius:12px;font-size:.92rem}footer{background:#fff;font-size:.78rem;color:#8192aa;border-color:var(--line)}
.login{background:#f5f8fd;gap:0}.login-story{background:radial-gradient(ellipse at 0 100%,#1767ab66,transparent 65%),linear-gradient(145deg,#041d42,#084681);padding:60px clamp(30px,6vw,100px)}.login-story h1{color:#fff}.login-story>.brand{color:#fff}.login-story .brand .edu-icon{color:#a9d8ff}.login-story>.eyebrow{color:#b5d7ff}.login-story p{color:#d6e8ff}.login-form{background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:0 24px 80px #0c2e6010;margin:40px auto;align-self:center;max-width:490px;width:calc(100% - 64px);padding:38px}.login-form h2{color:#102950;font-size:1.9rem}.login-form>.reading-tools{margin-bottom:30px}.demo{font-size:.8rem;border-color:var(--line)}
@media(min-width:1600px){.course-cover{min-height:120px;height:120px}}
@media(max-width:1200px){.sidebar{width:220px}.workspace{margin-left:220px}.content{padding:28px}header{padding:18px 28px}.dashboard-hero{grid-template-columns:1fr}.dashboard-stats{grid-template-columns:1fr 1fr}.admin-grid{grid-template-columns:1fr}.unit-layout{grid-template-columns:215px minmax(0,1fr)}.learning-shortcuts{grid-template-columns:1fr}}
@media(max-width:900px){.sidebar{position:relative;width:100%;padding:20px 22px;display:block}.sidebar .brand{font-size:1.3rem}.school{margin:5px 10px 12px}.sidebar .nav{display:inline-flex;padding:10px 13px;margin:7px 3px 0 0;font-size:.86rem}.workspace{margin-left:0}.unit-layout{grid-template-columns:1fr}.category-nav{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}.category-nav a{white-space:normal}.login-form{width:calc(100% - 32px);padding:28px}.login-story{padding:40px 28px}}
@media(max-width:600px){.sidebar{padding:18px 14px}.sidebar .nav{font-size:.82rem;padding:9px 10px}.sidebar .nav .edu-icon{width:18px;height:18px;margin-right:3px}.content{padding:24px 16px 36px}header{padding:16px;gap:12px}.header-tools{gap:12px}.profile{gap:8px;font-size:.8rem}.profile .avatar{width:36px;height:36px}.profile .quiet{padding:8px}.dashboard-stats{grid-template-columns:1fr}.dashboard-hero .welcome{padding:26px;min-height:210px}.robot-art{display:none}.learning-shortcuts .panel{padding:18px}.panel{padding:20px 16px;border-radius:14px}.course-info{padding:20px}.section-heading{gap:12px}.category-nav{grid-template-columns:1fr}.tabs a{font-size:.84rem}.table-wrap{max-width:100%}th,td{padding:14px 12px}.participant-filter{padding:14px;gap:10px}.participant-filter label{min-width:0}.participant-filter .primary,.participant-filter .secondary{flex:1}.review-stats{gap:8px}.review-stats .badge{font-size:.75rem}.login{grid-template-columns:1fr}.login-story{padding:30px 26px}.login-story>.brand{margin-bottom:30px}.login-story h1{font-size:2.3rem}.login-form{margin:24px auto;width:calc(100% - 32px);padding:26px}.learning-shortcuts b{flex-shrink:0}.topic-grid{grid-template-columns:1fr}}
@media(prefers-reduced-motion:reduce){.learning-shortcuts .panel:hover{transform:none}}