/* Student Platform — self-contained visual system (works without a Node server) */
:root{color-scheme:light;--page:#f5f7fd;--surface:#fff;--surface-soft:#f3f6ff;--ink:#172349;--ink-soft:#56627b;--line:#e1e8f4;--primary:#3157dc;--primary-deep:#223ea9;--turquoise:#0da6a4;--gold:#f4ad56;--shadow:0 15px 46px rgba(30,54,104,.07);--radius:22px;--font:'Cairo','Tajawal',Tahoma,Arial,sans-serif}
[data-theme=dark]{color-scheme:dark;--page:#0a1429;--surface:#142441;--surface-soft:#1a2d50;--ink:#eff5ff;--ink-soft:#b3c1d8;--line:#2c4166;--primary:#7995ff;--primary-deep:#4c6de9;--turquoise:#35d4c4;--shadow:0 15px 46px rgba(0,0,0,.18)}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--page);color:var(--ink);font-family:var(--font);font-size:14px;line-height:1.85;min-height:100vh;display:flex;flex-direction:column}body::before{content:'';position:absolute;top:0;left:0;right:0;height:600px;background:radial-gradient(ellipse at 85% 2%,rgba(81,146,246,.13),transparent 62%);pointer-events:none;z-index:-1}
a{color:var(--primary);text-decoration:none;transition:color .18s ease}a:hover{color:var(--turquoise)}img{max-width:100%;height:auto}h1,h2,h3,h4,p{margin-top:0}h1{font-size:clamp(1.8rem,3vw,2.9rem);line-height:1.4;letter-spacing:-.045em}h2{font-size:1.42rem;line-height:1.5;letter-spacing:-.03em}h3{font-size:1.05rem;line-height:1.65}p{line-height:1.95}strong{font-weight:800}.shell{width:min(1240px,calc(100% - 44px));margin-inline:auto}.main-content{padding-top:36px;padding-bottom:70px;flex:1;min-height:60vh}.muted{color:var(--ink-soft)}.eyebrow{color:var(--primary);font-size:.81rem;font-weight:900;letter-spacing:.01em;display:inline-flex;align-items:center;gap:8px}.eyebrow::before{content:'';display:block;width:17px;height:3px;background:var(--turquoise);border-radius:10px}.section-heading{display:flex;justify-content:space-between;gap:18px;align-items:end;margin:50px 0 21px}.section-heading h2{margin:4px 0}.section-heading p{margin:0;color:var(--ink-soft)}.section-heading a{font-weight:800}.skip-link{position:absolute;z-index:999;top:-100px;right:20px;background:white;padding:12px}.skip-link:focus{top:12px}
.site-header{position:sticky;top:0;z-index:90;background:color-mix(in srgb,var(--surface) 94%,transparent);backdrop-filter:blur(16px);border-bottom:1px solid var(--line);box-shadow:0 5px 22px rgba(12,34,76,.025)}.header-inner{min-height:82px;display:flex;align-items:center;gap:26px}.brand{display:flex;align-items:center;gap:12px;color:var(--ink);flex-shrink:0}.brand:hover{color:var(--ink)}.brand img{border-radius:14px;box-shadow:0 5px 13px rgba(49,87,220,.19)}.brand-copy{display:flex;flex-direction:column;line-height:1.45}.brand-copy strong{font-size:1.1rem}.brand-copy small{font-size:.65rem;color:var(--ink-soft);font-weight:700}.main-nav{display:flex;align-items:center;gap:7px;margin-inline-start:12px;flex:1}.main-nav a{color:var(--ink-soft);font-weight:800;padding:10px 14px;border-radius:12px;white-space:nowrap}.main-nav a:hover,.main-nav a.active{color:var(--primary);background:var(--surface-soft)}.header-actions{display:flex;gap:9px;align-items:center;margin-inline-start:auto}.icon-button{height:42px;min-width:42px;display:grid;place-items:center;background:var(--surface-soft);border:1px solid var(--line);border-radius:13px;color:var(--ink);cursor:pointer;font-size:1.2rem}.icon-button:hover{color:var(--primary);border-color:var(--primary)}.mobile-nav-toggle{display:none}.theme-icon{font-size:1.5rem;line-height:1}.account-chip{display:flex;align-items:center;gap:9px;padding:4px 7px 4px 13px;border:1px solid var(--line);border-radius:30px;color:var(--ink);font-size:.85rem;font-weight:800;max-width:180px}.account-name{overflow:hidden;white-space:nowrap;text-overflow:ellipsis}.avatar-mini{background:linear-gradient(135deg,#d5e5ff,#a2ebe5);color:#2345a2;display:grid;place-items:center;width:34px;height:34px;border-radius:50%;flex-shrink:0;font-weight:900}.logout-form{margin:0}.logout-form button{white-space:nowrap}
.btn,button[type=submit]:not(.icon-button),button:not([type]):not(.icon-button),input[type=submit]{display:inline-flex;justify-content:center;align-items:center;gap:9px;border:1px solid transparent;border-radius:12px;background:var(--primary);color:#fff;padding:11px 21px;font-size:.89rem;font-weight:900;line-height:1.6;cursor:pointer;font-family:var(--font);transition:transform .18s,box-shadow .18s,background .18s;white-space:normal;text-align:center;width:auto}button:hover,.btn:hover{transform:translateY(-1px)}.btn-primary:hover,button[type=submit]:hover{background:var(--primary-deep);color:#fff;box-shadow:0 8px 19px rgba(49,87,220,.19)}.btn-outline{background:transparent!important;color:var(--ink)!important;border:1px solid var(--line)!important}.btn-outline:hover{border-color:var(--primary)!important;color:var(--primary)!important}.btn-text{background:transparent;color:var(--ink)}.btn-text:hover{background:var(--surface-soft);color:var(--primary)}.btn-sm{font-size:.81rem;padding:9px 15px;min-height:39px}.btn-lg{font-size:1rem;padding:14px 26px;border-radius:15px}.btn-white{background:white;color:#2441ac}.btn-white:hover{color:#123898;background:#eaf3ff}.button-danger,button.button-danger{background:#fff1f2!important;color:#bc3651!important;border-color:#ffd6dc!important}.button-danger:hover{background:#ffe7eb!important}.btn-secondary{background:var(--surface-soft);color:var(--primary);border-color:var(--line)}.btn-secondary:hover{color:var(--primary);background:var(--line)}.link-arrow{font-weight:900;display:inline-flex;gap:7px;align-items:center}.link-arrow::after{content:'←';transition:transform .2s}.link-arrow:hover::after{transform:translateX(-5px)}
.panel,.card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:var(--radius);padding:25px}.panel{margin:20px 0}.panel h2{margin-bottom:17px}.card{margin:0;transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease}.card:hover{transform:translateY(-5px);box-shadow:0 19px 46px rgba(32,69,138,.12);border-color:#bfd3fa}.grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(230px,1fr));gap:18px}.grid.two{grid-template-columns:repeat(2,minmax(0,1fr))}.grid.three{grid-template-columns:repeat(3,minmax(0,1fr))}.grid.four{grid-template-columns:repeat(4,minmax(0,1fr))}.page-header{display:flex;align-items:center;justify-content:space-between;gap:15px;flex-wrap:wrap;margin-bottom:22px}.page-header h1{margin:0}.page-description{color:var(--ink-soft);max-width:620px;margin:8px 0 0}.hero{padding:56px 64px;border-radius:34px;margin:0;background:linear-gradient(112deg,#eff6ff,#e4f3ff 59%,#dff9f6);border:1px solid #dceafb;box-shadow:0 25px 60px rgba(29,85,156,.07)}[data-theme=dark] .hero{background:linear-gradient(130deg,#152950,#1f3b5a)}.hero h1{font-size:clamp(2.2rem,3.7vw,3.9rem);max-width:630px}.hero p{font-size:1rem;color:#465979;max-width:540px}[data-theme=dark] .hero p{color:#c3d2e5}.hero-main{display:grid;grid-template-columns:1fr .95fr;gap:26px;align-items:center;min-height:405px}.hero-main .hero-img{width:100%;max-height:445px;object-fit:contain;filter:drop-shadow(0 22px 25px rgba(31,77,159,.08));animation:floatSlow 7s ease-in-out infinite}.hero-cta{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}.hero .search-form{margin-top:27px}.hero-kicker{display:inline-flex;align-items:center;gap:9px;background:#fff;border-radius:22px;color:#24519d;font-size:.8rem;padding:7px 15px;font-weight:900;margin-bottom:20px}.hero-kicker .dot{width:8px;height:8px;background:#15bba0;border-radius:50%}.hero-highlights{display:flex;gap:25px;align-items:center;flex-wrap:wrap;margin-top:23px;color:#536681;font-weight:800;font-size:.77rem}.hero-highlights span::before{content:'✓';display:inline-grid;place-items:center;color:#078b80;background:#d0faf0;width:23px;height:23px;border-radius:50%;margin-left:8px}
.search-form{display:flex;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:17px;box-shadow:0 12px 24px rgba(42,70,119,.07);padding:7px;gap:10px;max-width:610px}.search-form input{border:0!important;background:transparent!important;box-shadow:none!important;min-height:48px;flex:1;width:100%;outline:0!important}.search-form .search-icon{color:var(--primary);padding-inline:12px;font-size:1.4rem}.search-form button{border-radius:12px;padding:13px 24px}.search-form:focus-within{border-color:#8aa5f7;box-shadow:0 0 0 4px rgba(47,93,221,.1)}
.category-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.category-card{display:flex;gap:15px;align-items:center;padding:19px;border-radius:20px;background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);color:var(--ink);min-width:0;transition:.2s}.category-card:hover{transform:translateY(-4px);border-color:#a7bdf7;color:var(--primary)}.category-icon{width:60px;height:60px;display:grid;place-items:center;border-radius:17px;background:#eaf0ff;color:var(--primary);font-size:1.9rem;flex-shrink:0}.category-card:nth-child(4n+2) .category-icon{background:#e2faf1;color:#0d988b}.category-card:nth-child(4n+3) .category-icon{background:#fff0e3;color:#de8b3c}.category-card:nth-child(4n) .category-icon{background:#f1eaff;color:#8e61d0}.category-card strong{display:block;font-size:.9rem}.category-card small{font-size:.73rem;color:var(--ink-soft)}
.file-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}.file-card{padding:0;overflow:hidden;display:flex;flex-direction:column;color:var(--ink)}.file-cover{position:relative;aspect-ratio:2.1/1;display:block;background:#eaf1fc;overflow:hidden}.file-cover img{display:block;width:100%;height:100%;object-fit:cover;transition:transform .36s}.file-card:hover .file-cover img{transform:scale(1.05)}.file-tag{position:absolute;right:13px;top:13px;display:inline-flex;border-radius:18px;background:rgba(255,255,255,.94);color:#264c9e;font-size:.67rem;padding:4px 11px;font-weight:800;box-shadow:0 3px 12px rgba(0,0,0,.06)}.file-body{padding:20px;display:flex;flex-direction:column;gap:8px;flex:1}.file-body h3{margin:0;font-size:1rem}.file-body p{margin:0;color:var(--ink-soft);font-size:.82rem;flex:1}.file-meta{display:flex;align-items:center;justify-content:space-between;gap:8px;font-size:.72rem;color:var(--ink-soft);margin-top:11px;padding-top:12px;border-top:1px solid var(--line)}.file-meta a{font-size:.8rem;font-weight:900}.file-detail{display:grid;grid-template-columns:1.25fr .75fr;gap:24px;align-items:start}.detail-cover{width:100%;border-radius:19px;aspect-ratio:1.8/1;object-fit:cover;background:var(--surface-soft);margin-bottom:20px}.similar-grid .file-cover{aspect-ratio:1.95/1}
.feature-banner{background:linear-gradient(112deg,#233fa0,#315ddd 65%,#168d9c);border-radius:28px;color:#fff;padding:39px 46px;display:grid;grid-template-columns:1fr 250px;gap:25px;align-items:center;overflow:hidden;position:relative;margin-top:53px}.feature-banner::before{content:'';position:absolute;inset:auto -60px -150px auto;width:350px;height:350px;border-radius:50%;background:rgba(255,255,255,.06)}.feature-banner h2{font-size:1.68rem}.feature-banner p{color:#dbe9ff;max-width:510px}.feature-banner img{width:100%;max-height:180px;object-fit:contain}.feature-points{display:flex;gap:13px;flex-wrap:wrap;margin-top:14px}.feature-points span{border:1px solid rgba(255,255,255,.25);border-radius:28px;padding:6px 11px;color:#eaf5ff;font-size:.74rem}
.catalog-hero{background:#153a7e url('../illustrations/library-scene.svg') left center / auto 100% no-repeat;color:#fff;border-radius:26px;padding:52px 46px;margin-bottom:25px;position:relative;overflow:hidden}.catalog-hero::before{content:'';position:absolute;inset:0;background:linear-gradient(270deg,#183675 8%,rgba(24,54,117,.92) 48%,rgba(24,54,117,.2) 100%)}.catalog-hero>*{position:relative;z-index:1}.catalog-hero h1{margin:10px 0}.catalog-hero p{color:#cbdffa}.filter-card{display:grid;grid-template-columns:2.3fr 1fr 1fr auto;gap:12px;align-items:end;margin:0 0 22px}.filter-card label{display:flex;flex-direction:column;gap:5px;font-weight:800;font-size:.78rem;color:var(--ink-soft)}.filter-card button{height:48px}.result-count{font-weight:800;color:var(--ink-soft);margin-bottom:13px}.empty-state{text-align:center;padding:35px 20px}.empty-state img{width:150px;display:block;margin:0 auto 12px}.empty-state h3{margin-bottom:5px}
input,select,textarea{font:inherit;font-family:var(--font);width:100%;padding:12px 15px;border:1px solid var(--line);border-radius:12px;min-height:46px;background:var(--surface);color:var(--ink);outline:0;transition:border-color .2s,box-shadow .2s}input:focus,select:focus,textarea:focus{border-color:#83a4fa;box-shadow:0 0 0 4px rgba(49,87,220,.1)}input::placeholder,textarea::placeholder{color:#8795af}textarea{min-height:115px;resize:vertical}input[type=file]{padding:10px;cursor:pointer}input[type=checkbox],input[type=radio]{width:18px;min-height:18px;height:18px;vertical-align:middle;accent-color:var(--primary);box-shadow:none}.stack{display:grid;gap:15px}.stack label{font-weight:800;font-size:.82rem;display:grid;gap:7px}.stack label:has(input[type=checkbox]){display:flex;align-items:center;gap:7px}.stack button{justify-self:start}.stack:not(form){max-width:none}.inline-form{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.inline-form input{flex:1}.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}.form-help{color:var(--ink-soft);font-size:.73rem}.auth-page{display:grid;grid-template-columns:1fr 1fr;gap:0;min-height:560px;max-width:1020px;margin:36px auto 60px;background:var(--surface);border:1px solid var(--line);border-radius:29px;overflow:hidden;box-shadow:var(--shadow)}.auth-form-wrap{padding:53px clamp(25px,4vw,62px);display:flex;flex-direction:column;justify-content:center}.auth-form-wrap h1{font-size:2rem;margin:10px 0 8px}.auth-form-wrap p{color:var(--ink-soft)}.auth-form-wrap form{margin-top:18px}.auth-form-wrap form button{width:100%;min-height:49px}.auth-art{background:linear-gradient(160deg,#e6f1ff,#d4eafe);padding:34px;display:flex;flex-direction:column;justify-content:center;align-items:center;text-align:center}.auth-art img{max-height:350px}.auth-art h2{font-size:1.55rem;color:#244389}.auth-art p{color:#526e9c}.password-input{display:flex;position:relative}.password-input input{padding-left:54px}.password-input button{position:absolute;inset-inline-end:7px;top:5px;font-size:.8rem;padding:7px!important;background:transparent!important;color:var(--ink-soft)!important;border:0!important}.auth-links{display:flex;justify-content:space-between;flex-wrap:wrap;gap:8px;margin-top:16px;font-weight:800;font-size:.8rem}
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:17px}.stat-card{position:relative;padding:23px;border:1px solid var(--line);background:var(--surface);border-radius:20px;box-shadow:var(--shadow);overflow:hidden}.stat-card::after{content:'';width:80px;height:80px;background:var(--surface-soft);border-radius:24px;position:absolute;top:-25px;left:-23px;transform:rotate(20deg)}.stat-card strong{font-size:1.7rem;color:var(--primary);display:block;line-height:1.6}.stat-card p{font-size:.84rem;color:var(--ink-soft);margin:5px 0}.dashboard-hero{border-radius:27px;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:30px 36px;background:linear-gradient(115deg,#e8f0ff,#f1f8fc);border:1px solid #dce6fa;margin-bottom:22px}.dashboard-hero h1{font-size:2rem;margin:5px 0}.dashboard-hero p{color:#61718d;margin:0}.dashboard-hero img{width:185px;max-height:140px;object-fit:contain}.workspace{display:grid;grid-template-columns:242px minmax(0,1fr);gap:25px;padding-top:28px;padding-bottom:60px;flex:1}.workspace-sidebar{position:sticky;top:111px;height:max-content;background:var(--surface);border:1px solid var(--line);border-radius:23px;padding:23px 13px;box-shadow:var(--shadow)}.sidebar-label{font-size:.8rem;color:var(--ink-soft);font-weight:900;padding:0 13px 13px}.side-link{display:flex;align-items:center;gap:10px;padding:11px 14px;border-radius:12px;color:var(--ink-soft);font-weight:800;margin:3px 0}.side-link span{font-size:1.2rem;min-width:25px;color:#7990bf}.side-link:hover,.side-link.active{color:var(--primary);background:var(--surface-soft)}.side-link.active span{color:var(--primary)}.sidebar-help{background:linear-gradient(140deg,#3456d8,#2c87a5);border-radius:17px;padding:19px;color:white;margin:24px 2px 0}.sidebar-help strong{font-size:.87rem}.sidebar-help p{color:#e6eeff;font-size:.72rem}.sidebar-help a{color:#fff;font-size:.8rem;font-weight:900}.workspace-content{min-width:0}.workspace-content>.panel:first-child{margin-top:0}.workspace-content .panel{margin:18px 0}
.table-scroll{overflow-x:auto}.table-scroll table{min-width:560px}table{border-collapse:separate;border-spacing:0;width:100%;font-size:.84rem}th,td{padding:13px 14px;text-align:right;vertical-align:middle;border-bottom:1px solid var(--line)}th{background:var(--surface-soft);color:var(--ink-soft);font-weight:900;white-space:nowrap}tr:last-child td{border-bottom:0}tbody tr:hover{background:color-mix(in srgb,var(--surface-soft) 60%,transparent)}td a{font-weight:800}.pill{display:inline-flex;align-items:center;gap:5px;background:#e7f6f0;color:#178b78;border-radius:40px;padding:5px 12px;font-size:.72rem;font-weight:900;white-space:nowrap}.pill[data-status*=PENDING],.pill[data-status*=AWAITING],.pill[data-status*=REVIEW]{background:#fff2dc;color:#9d6714}.pill[data-status*=REJECTED],.pill[data-status*=CANCELLED],.pill[data-status*=SUSPENDED]{background:#ffedf1;color:#ba4866}.pill[data-status*=IN_PROGRESS],.pill[data-status*=ASSIGNED],.pill[data-status*=NEW]{background:#eaf0ff;color:#365ac4}.actions{display:flex;gap:11px;flex-wrap:wrap;align-items:center}.actions>*{flex:0 1 auto}.long-text{white-space:pre-wrap;overflow-wrap:anywhere}.message,.comment{border:1px solid var(--line);padding:16px;border-radius:16px;margin:10px 0;background:var(--surface-soft)}.messages{max-height:470px;overflow:auto;padding:6px}.messages .message{max-width:86%}.messages .message strong{display:inline-block;margin-left:5px}.comment p,.message p{margin-bottom:0}.timeline{border-right:2px solid var(--line);padding-right:21px}.timeline-item{position:relative;padding:3px 9px 17px}.timeline-item::before{content:'';position:absolute;right:-28px;top:9px;width:12px;height:12px;background:var(--primary);border:3px solid var(--surface);border-radius:50%;box-shadow:0 0 0 2px var(--line)}.request-layout{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(290px,.65fr);gap:21px;align-items:start}.request-layout .panel{margin:0 0 17px}.request-details-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:13px}.request-details-grid>div{border-radius:13px;background:var(--surface-soft);padding:12px}.request-details-grid span{font-size:.74rem;color:var(--ink-soft);display:block}.request-details-grid strong{font-size:.87rem}.request-actions{display:flex;gap:9px;flex-wrap:wrap}
.flash-message,.form-alert,.error{border-radius:14px;padding:14px 18px;margin:14px 0 20px}.flash-message{display:flex;gap:11px;align-items:center;background:#e9fbf3;color:#18715e;border:1px solid #b7ead4;font-weight:800}.flash-message button{margin-inline-start:auto;border:0!important;background:transparent!important;color:#18715e!important;font-size:1.3rem!important;padding:0 6px!important}.form-alert,.error{background:#fff1f1;border:1px solid #f9d4d7;color:#9c3346}.form-alert ul{margin:6px 16px 0}.site-footer{background:var(--surface);border-top:1px solid var(--line);margin-top:auto}.footer-grid{padding:34px 0;display:flex;gap:25px;align-items:center;justify-content:space-between;flex-wrap:wrap}.footer-brand{display:flex;align-items:center;gap:11px}.footer-brand strong{font-size:1rem}.footer-brand p{font-size:.75rem;color:var(--ink-soft);margin:0}.footer-links{display:flex;gap:20px;flex-wrap:wrap}.footer-links a{font-weight:800;font-size:.79rem}.footer-grid>small{font-size:.72rem;color:var(--ink-soft)}
.promo-strip{padding:28px;border:1px solid var(--line);background:var(--surface);border-radius:20px;display:flex;gap:24px;justify-content:space-between;align-items:center;margin:32px 0}.promo-strip>div{flex:1}.promo-strip h3{margin:0}.promo-strip p{font-size:.8rem;color:var(--ink-soft);margin:4px 0 0}.count-chip{border-radius:50px;background:var(--surface-soft);padding:5px 12px;font-weight:800;font-size:.75rem;color:var(--primary)}.upload-box{padding:21px;background:var(--surface-soft);border:1px dashed #aabde7;border-radius:15px;display:grid;gap:10px}.upload-box input{border:0;padding:2px;background:transparent}.form-toolbar{display:flex;gap:10px;flex-wrap:wrap;align-items:center}.reveal{animation:riseIn .5s both}.footer-legal{font-size:.73rem}.notice-list{display:grid;gap:12px}.notice-item{display:flex;gap:15px;align-items:start}.notice-dot{width:12px;height:12px;background:var(--primary);border-radius:50%;flex-shrink:0;margin-top:11px}
@keyframes floatSlow{0%,100%{transform:translateY(0)}50%{transform:translateY(-11px)}}@keyframes riseIn{from{opacity:.5;transform:translateY(12px)}to{opacity:1;transform:translateY(0)}}
@media(max-width:1150px){.main-nav{gap:1px}.main-nav a{padding:9px}.header-inner{gap:14px}.workspace{grid-template-columns:215px minmax(0,1fr)}.category-grid{grid-template-columns:repeat(3,minmax(0,1fr))}}
@media(max-width:900px){.file-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero{padding:32px}.category-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.hero-main{grid-template-columns:1fr .8fr}.hero-main .hero-img{max-height:340px}.account-name{display:none}.workspace{display:block}.workspace-sidebar{position:static;display:flex;overflow-x:auto;gap:5px;padding:10px;margin-bottom:22px}.workspace-sidebar .sidebar-label,.workspace-sidebar .sidebar-help{display:none}.side-link{white-space:nowrap}.filter-card{grid-template-columns:1.4fr 1fr}.request-layout{grid-template-columns:1fr}.header-inner{flex-wrap:wrap;padding:10px 0}.mobile-nav-toggle{display:grid;order:2;margin-inline-start:auto}.header-actions{order:1}.main-nav{display:none;order:3;width:100%;flex:0 0 100%;flex-direction:column;align-items:stretch;padding:10px 0}.main-nav.open{display:flex}.main-nav a{padding:11px}.header-actions .account-chip{display:none}}
@media(max-width:640px){.shell{width:min(100% - 28px,1240px)}.main-content{padding-top:20px}.header-inner{min-height:68px}.brand-copy small{display:none}.brand-copy strong{font-size:.95rem}.brand img{width:38px;height:38px}.header-actions{gap:5px}.header-actions .logout-form{display:none}.header-actions .join-btn{display:none}.icon-button{min-width:37px;height:37px}.hero{padding:24px;border-radius:23px}.hero-main{grid-template-columns:1fr;gap:8px}.hero-main .hero-img{width:90%;max-height:280px;justify-self:center;order:-1}.hero h1{font-size:2rem}.hero .search-form button{padding:10px 14px}.hero-highlights{gap:10px}.hero-cta .btn{flex:1}.category-grid,.file-grid,.grid.two,.grid.three,.grid.four,.form-row,.auth-page,.file-detail{grid-template-columns:1fr}.category-card{padding:13px}.category-icon{width:54px;height:54px}.section-heading{margin:34px 0 17px}.feature-banner{grid-template-columns:1fr;padding:28px}.feature-banner img{display:none}.catalog-hero{padding:36px 22px;background-size:auto 100%}.filter-card{grid-template-columns:1fr}.filter-card button{width:100%}.panel,.card{padding:19px;border-radius:18px}.file-card{padding:0}.file-body{padding:18px}.auth-page{margin:20px auto 36px}.auth-art{display:none}.auth-form-wrap{padding:29px 23px}.stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}.stat-card{padding:15px}.stat-card strong{font-size:1.3rem}.dashboard-hero{padding:20px}.dashboard-hero img{display:none}.footer-grid{padding:28px 0}.request-details-grid{grid-template-columns:1fr}.promo-strip{flex-wrap:wrap}.actions>*{flex:1}.table-scroll{margin:0 -6px}th,td{padding:10px 11px}}
.password-input{display:block!important;position:relative}.password-input input{padding-inline-end:78px!important}.password-input .password-reveal{position:absolute!important;inset-inline-end:8px!important;top:50%!important;transform:translateY(-50%)!important;width:auto!important;min-width:58px!important;min-height:34px!important;height:34px!important;padding:4px 9px!important;background:var(--surface-soft)!important;color:var(--primary)!important;border:1px solid var(--line)!important;border-radius:9px!important;font-size:.72rem!important;font-weight:800!important;line-height:1!important;z-index:2}.password-input .password-reveal:hover,.password-input .password-reveal:focus-visible{border-color:var(--primary)!important;background:color-mix(in srgb,var(--primary) 9%,var(--surface))!important}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{animation:none!important;scroll-behavior:auto!important;transition:none!important}}

/* Request detail navigation and conversation enhancements */
.request-nav{display:flex;flex-wrap:wrap;gap:8px;margin:19px 0 25px;padding:8px;background:var(--surface);border:1px solid var(--line);border-radius:15px;box-shadow:var(--shadow)}
.request-nav a{font-size:.77rem;font-weight:900;color:var(--ink-soft);padding:8px 13px;border-radius:10px}.request-nav a:hover{background:var(--surface-soft);color:var(--primary)}
#request-overview,#request-agreement,#request-files,#request-chat,#request-deliveries,#request-history,#request-comments{scroll-margin-top:105px}
.messages .message[data-own-message=true]{margin-right:auto;background:#eaf0ff;border-color:#cadafc}[data-theme=dark] .messages .message[data-own-message=true]{background:#213660}
@media(max-width:650px){.request-nav{overflow-x:auto;flex-wrap:nowrap}.request-nav a{white-space:nowrap}}

/* Academic services landing page */
.main-content:has(.academic-hero){width:100%;max-width:none;padding:0 0 80px}.main-content:has(.academic-hero)>section{width:min(1240px,calc(100% - 44px));margin-inline:auto}.academic-hero{width:100%!important;max-width:none!important;min-height:670px;display:grid;grid-template-columns:minmax(0,1.02fr) minmax(420px,.98fr);align-items:center;gap:48px;padding:80px max(5vw,calc((100vw - 1240px)/2));overflow:hidden;position:relative;background:linear-gradient(125deg,#071b42 0%,#123b76 56%,#087f83 130%);color:#fff}.academic-hero::before{content:'';position:absolute;inset:0;background:radial-gradient(circle at 12% 12%,rgba(32,208,185,.18),transparent 26%),linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:auto,52px 52px,52px 52px}.academic-hero__content,.academic-hero__visual{position:relative;z-index:1}.hero-badge{display:inline-flex;align-items:center;gap:9px;border:1px solid rgba(255,255,255,.2);background:rgba(255,255,255,.09);backdrop-filter:blur(10px);padding:8px 15px;border-radius:30px;font-size:.78rem;font-weight:800}.hero-badge>span{width:8px;height:8px;border-radius:50%;background:#42dbc4;box-shadow:0 0 0 5px rgba(66,219,196,.13)}.academic-hero h1{font-size:clamp(2.7rem,5vw,5rem);line-height:1.23;margin:24px 0 20px;max-width:690px;letter-spacing:-.055em}.academic-hero h1 em{font-style:normal;color:#64e2cc;display:block}.academic-hero__content>p{font-size:clamp(.97rem,1.3vw,1.1rem);color:#d5e4f5;max-width:675px;line-height:2.1}.academic-hero__actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:29px}.btn-whatsapp{background:#19a974!important;color:#fff!important;border-color:#19a974!important}.btn-whatsapp:hover{background:#12865d!important;color:#fff!important;box-shadow:0 10px 26px rgba(13,148,101,.25)}.btn-whatsapp svg{width:18px;height:18px;fill:currentColor}.nav-whatsapp{white-space:nowrap}.hero-trust{display:flex;flex-wrap:wrap;gap:21px;margin-top:30px;color:#c8d9ed;font-size:.77rem;font-weight:700}.hero-trust span::before{content:'✓';color:#64e2cc;margin-left:7px}.academic-hero__visual{min-height:510px;display:grid;place-items:center}.academic-hero__visual::before{content:'';position:absolute;width:82%;aspect-ratio:1;border-radius:50%;background:radial-gradient(circle,rgba(86,225,206,.19),rgba(38,111,168,.08) 55%,transparent 71%)}.academic-hero__visual img{width:100%;max-height:510px;object-fit:contain;filter:drop-shadow(0 28px 36px rgba(0,0,0,.2));animation:floatSlow 7s ease-in-out infinite;position:relative}.visual-orbit{position:absolute;border:1px solid rgba(126,232,218,.2);border-radius:50%}.orbit-one{width:92%;aspect-ratio:1}.orbit-two{width:68%;aspect-ratio:1}.floating-note{position:absolute;display:flex;align-items:center;gap:10px;background:rgba(255,255,255,.94);color:#102b51;border:1px solid rgba(255,255,255,.65);box-shadow:0 18px 38px rgba(0,0,0,.16);border-radius:15px;padding:11px 16px;font-size:.75rem;font-weight:800}.floating-note strong{font-size:1.2rem;color:#087f83}.note-top{top:16%;right:0}.note-bottom{bottom:15%;left:0}.status-dot{width:10px;height:10px;background:#20c997;border-radius:50%;box-shadow:0 0 0 5px rgba(32,201,151,.13)}
.landing-section{padding-top:90px;scroll-margin-top:88px}.landing-heading{margin-bottom:35px;max-width:710px}.landing-heading.centered{text-align:center;margin-inline:auto}.landing-heading.centered .eyebrow{justify-content:center}.landing-heading h2{font-size:clamp(1.8rem,3vw,2.65rem);margin:8px 0 10px}.landing-heading p{color:var(--ink-soft);font-size:.95rem;margin:0}.services-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:19px}.service-card{background:var(--surface);border:1px solid var(--line);border-radius:22px;padding:27px;display:flex;flex-direction:column;min-height:315px;box-shadow:0 10px 35px rgba(25,53,103,.055);transition:transform .25s,box-shadow .25s,border-color .25s}.service-card:hover{transform:translateY(-7px);border-color:#9fc6e9;box-shadow:0 24px 48px rgba(18,63,116,.11)}.service-icon{width:55px;height:55px;display:grid;place-items:center;border-radius:16px;background:linear-gradient(145deg,#e9f2ff,#e1fbf6);color:#1556a5;margin-bottom:18px}.service-icon svg,.contact-cta__icon svg{width:28px;height:28px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}.service-card h3{margin:0 0 8px;font-size:1.04rem}.service-card p{color:var(--ink-soft);font-size:.82rem;line-height:2;flex:1}.service-link{font-weight:900;font-size:.8rem;color:#087f83;display:inline-flex;gap:7px;align-items:center;margin-top:8px}.service-link:hover{gap:11px}.service-link--disabled{color:var(--ink-soft);opacity:.7;cursor:not-allowed}.services-note{text-align:center;color:var(--ink-soft);font-size:.74rem;margin:20px 0 0}.why-section{margin-top:90px!important;padding:75px 64px!important;border-radius:32px;background:linear-gradient(135deg,#eef5ff,#f5fbfc);border:1px solid #deebf7}[data-theme=dark] .why-section{background:linear-gradient(135deg,#102448,#14334a)}.benefits-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.benefit-card{position:relative;background:var(--surface);border:1px solid var(--line);border-radius:19px;padding:24px;overflow:hidden}.benefit-number{position:absolute;left:16px;top:10px;color:var(--line);font-size:2.2rem;font-weight:900}.benefit-icon{width:42px;height:42px;display:grid;place-items:center;border-radius:13px;background:#e5f8f4;color:#078b80;font-size:1.2rem;margin-bottom:18px}.benefit-card h3{margin:0 0 6px}.benefit-card p{color:var(--ink-soft);font-size:.79rem;margin:0}.process-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;position:relative}.process-grid::before{content:'';position:absolute;top:35px;right:15%;left:15%;height:2px;background:linear-gradient(90deg,#1fb8a3,#4672db);opacity:.25}.process-step{position:relative;text-align:center;padding:0 22px}.step-number{position:relative;z-index:1;width:70px;height:70px;margin:0 auto 18px;display:grid;place-items:center;border-radius:50%;background:var(--surface);border:2px solid #7dd9cb;color:#116c70;font-size:1.05rem;font-weight:900;box-shadow:0 8px 24px rgba(17,108,112,.12)}.process-step:nth-child(2) .step-number{border-color:#7195ed;color:#3157dc}.process-step h3{margin-bottom:5px}.process-step p{color:var(--ink-soft);font-size:.82rem}.library-showcase{margin-top:100px!important;background:linear-gradient(120deg,#163f80,#176b8a);border-radius:30px;padding:52px 58px;display:grid;grid-template-columns:1fr 360px;gap:30px;align-items:center;color:#fff;overflow:hidden}.library-showcase h2{font-size:2rem;margin:17px 0 9px}.library-showcase p{color:#d8e9f8;max-width:600px}.library-showcase img{max-height:230px;width:100%;object-fit:contain}.hero-badge.light{background:rgba(255,255,255,.1)}.contact-cta{margin-top:100px!important;padding:45px 52px;background:linear-gradient(125deg,#071c43,#123f72 65%,#087a7c);border-radius:28px;display:grid;grid-template-columns:auto 1fr auto;gap:25px;align-items:center;color:#fff;overflow:hidden;position:relative}.contact-cta::after{content:'';position:absolute;width:280px;height:280px;border-radius:50%;background:rgba(65,219,196,.08);left:-100px;bottom:-170px}.contact-cta__icon{width:68px;height:68px;display:grid;place-items:center;border-radius:20px;background:rgba(255,255,255,.1);color:#64e2cc}.contact-cta>div>span{font-size:.75rem;color:#6de2cf;font-weight:800}.contact-cta h2{font-size:1.65rem;margin:3px 0}.contact-cta p{color:#d5e4f5;margin:0;max-width:760px;font-size:.85rem}.reveal-on-scroll{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}.reveal-on-scroll.is-visible{opacity:1;transform:none}
@media(max-width:1050px){.academic-hero{grid-template-columns:1fr .75fr;padding-block:65px;min-height:600px}.services-grid{grid-template-columns:repeat(2,1fr)}.benefits-grid{grid-template-columns:repeat(2,1fr)}.main-nav a{padding-inline:7px;font-size:.78rem}.nav-whatsapp span{display:none}.nav-whatsapp{padding-inline:11px}}
@media(max-width:800px){.academic-hero{grid-template-columns:1fr;padding-top:55px}.academic-hero__visual{min-height:330px;order:-1}.academic-hero__visual img{max-height:360px}.academic-hero h1{font-size:2.7rem}.why-section{padding:48px 30px!important}.library-showcase{grid-template-columns:1fr 220px;padding:38px}.contact-cta{grid-template-columns:auto 1fr}.contact-cta .btn{grid-column:1/-1;justify-self:start}}
@media(max-width:640px){.main-content:has(.academic-hero)>section{width:min(100% - 28px,1240px)}.academic-hero{width:100%!important;padding:38px 20px 48px;min-height:auto}.academic-hero__visual{min-height:250px}.academic-hero__visual img{max-height:270px}.floating-note{padding:8px 11px}.note-top{top:5%}.note-bottom{bottom:7%}.academic-hero h1{font-size:2.35rem}.academic-hero__content>p{font-size:.9rem}.academic-hero__actions .btn{width:100%}.hero-trust{gap:10px 15px}.landing-section{padding-top:65px}.services-grid,.benefits-grid,.process-grid{grid-template-columns:1fr}.service-card{min-height:0;padding:22px}.why-section{margin-top:65px!important;padding:38px 20px!important}.process-grid{gap:14px}.process-grid::before{display:none}.process-step{display:flex;text-align:right;gap:16px;padding:12px}.step-number{width:55px;height:55px;margin:0;flex:0 0 55px}.library-showcase{margin-top:70px!important;grid-template-columns:1fr;padding:31px 24px}.library-showcase img{display:none}.contact-cta{margin-top:70px!important;grid-template-columns:1fr;padding:30px 24px}.contact-cta__icon{width:55px;height:55px}.contact-cta .btn{width:100%}.nav-whatsapp{display:none}}

/* Premium login experience */
.main-content:has(.login-experience){width:100%;max-width:none;padding:0;display:flex}.login-experience{width:100%;min-height:calc(100vh - 83px);display:grid;grid-template-columns:minmax(440px,.78fr) minmax(520px,1.22fr);background:var(--surface)}.login-panel{width:min(510px,calc(100% - 60px));margin:auto;padding:45px 0}.login-brand{display:inline-flex;align-items:center;gap:12px;color:var(--ink);margin-bottom:56px}.login-brand:hover{color:var(--ink)}.login-brand img{border-radius:14px;box-shadow:0 8px 20px rgba(49,87,220,.18)}.login-brand span{display:flex;flex-direction:column;line-height:1.45}.login-brand strong{font-size:1rem}.login-brand small{font-size:.67rem;color:var(--ink-soft);font-weight:700}.login-heading h1{font-size:clamp(2rem,3vw,2.7rem);margin:8px 0 8px}.login-heading p{color:var(--ink-soft);margin:0;max-width:460px}.login-form{margin-top:30px}.login-form>label,.password-label label{display:block;font-weight:900;font-size:.8rem;margin:0 0 7px}.password-label{display:flex;justify-content:space-between;align-items:center;margin-top:18px}.password-label a{font-size:.73rem;font-weight:800}.login-input{height:55px;display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:14px;background:var(--surface);padding:0 14px;transition:border-color .2s,box-shadow .2s}.login-input:focus-within{border-color:#7296ef;box-shadow:0 0 0 4px rgba(49,87,220,.09)}.login-input.has-error{border-color:#e36b7d}.login-input>svg{width:21px;height:21px;fill:none;stroke:#7b8ca9;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0}.login-input input{border:0!important;box-shadow:none!important;background:transparent!important;padding:0!important;min-height:0;height:100%;flex:1}.password-reveal{border:0!important;background:transparent!important;color:var(--primary)!important;padding:5px!important;font-size:.72rem!important;min-width:auto!important}.field-error{display:block;color:#b94157;margin-top:5px;font-weight:700}.remember-row{display:flex!important;align-items:center;gap:8px;margin:17px 0!important;color:var(--ink-soft);font-size:.75rem!important;cursor:pointer}.remember-row input{width:17px;height:17px;min-height:17px}.login-submit{width:100%!important;min-height:53px;justify-content:space-between!important;border-radius:14px!important;padding-inline:22px!important;font-size:.92rem!important;background:linear-gradient(105deg,#254fc8,#167d99)!important;box-shadow:0 13px 27px rgba(37,79,200,.18)}.login-submit:hover{box-shadow:0 17px 32px rgba(37,79,200,.26)!important}.login-divider{display:flex;align-items:center;gap:13px;color:var(--ink-soft);font-size:.7rem;margin:24px 0 14px}.login-divider::before,.login-divider::after{content:'';height:1px;background:var(--line);flex:1}.create-account-link{min-height:49px;display:flex;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:13px;color:var(--ink);font-size:.8rem;font-weight:900}.create-account-link:hover{border-color:#8ba8ed;background:var(--surface-soft);color:var(--primary)}.login-help{text-align:center;color:var(--ink-soft);font-size:.7rem;margin:20px 0 0}.login-help a{font-weight:800}.login-showcase{position:relative;overflow:hidden;padding:70px clamp(45px,6vw,95px);background:linear-gradient(140deg,#071c43,#123d76 54%,#087a7d);color:#fff;display:flex;flex-direction:column;justify-content:center}.login-showcase::before{content:'';position:absolute;inset:0;background:linear-gradient(rgba(255,255,255,.025) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.025) 1px,transparent 1px);background-size:48px 48px}.login-glow{position:absolute;width:520px;height:520px;border-radius:50%;background:rgba(42,222,194,.12);filter:blur(12px);left:-170px;bottom:-230px}.login-showcase>*:not(.login-glow){position:relative;z-index:1}.showcase-badge{align-self:flex-start;display:flex;align-items:center;gap:8px;border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.08);border-radius:25px;padding:7px 13px;font-size:.72rem;font-weight:800}.showcase-badge i{width:8px;height:8px;border-radius:50%;background:#5ce2ce;box-shadow:0 0 0 4px rgba(92,226,206,.13)}.showcase-copy{max-width:640px;margin:30px 0 0}.showcase-copy h2{font-size:clamp(2rem,3.2vw,3.4rem);line-height:1.45;margin-bottom:13px}.showcase-copy p{color:#cbdced;font-size:.9rem;max-width:570px}.showcase-visual{height:310px;position:relative;display:grid;place-items:center;margin:5px 0}.showcase-visual>img{height:100%;width:100%;object-fit:contain;filter:drop-shadow(0 25px 30px rgba(0,0,0,.18));animation:floatSlow 7s ease-in-out infinite}.showcase-card{position:absolute;background:rgba(255,255,255,.94);color:#17315a;border-radius:14px;padding:10px 14px;display:flex;align-items:center;gap:10px;box-shadow:0 16px 35px rgba(0,0,0,.15)}.showcase-card>span{width:30px;height:30px;display:grid;place-items:center;border-radius:10px;background:#dff8f1;color:#0a8b77;font-weight:900}.showcase-card div{display:flex;flex-direction:column}.showcase-card strong{font-size:.75rem}.showcase-card small{font-size:.62rem;color:#6b7890}.card-one{right:1%;top:22%}.card-two{left:2%;bottom:15%}.showcase-points{display:flex;gap:23px;flex-wrap:wrap;color:#cbdced;font-size:.72rem;font-weight:700}.showcase-points span::before{content:'✓';color:#5ce2ce;margin-left:6px}
@media(max-width:1000px){.login-experience{grid-template-columns:minmax(390px,.9fr) minmax(400px,1.1fr)}.login-showcase{padding-inline:40px}.showcase-copy h2{font-size:2.2rem}.showcase-visual{height:270px}.login-brand{margin-bottom:38px}}
@media(max-width:760px){.main-content:has(.login-experience){padding:0}.login-experience{display:block;min-height:auto;background:linear-gradient(145deg,#eef5ff,#f4fbfa)}[data-theme=dark] .login-experience{background:var(--page)}.login-panel{width:min(100% - 28px,520px);margin:25px auto;padding:27px 24px;background:var(--surface);border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow)}.login-brand{margin-bottom:30px}.login-showcase{display:none}.login-heading h1{font-size:1.85rem}.login-heading p{font-size:.8rem}.login-form{margin-top:23px}}

/* Student workspace, private chat and task views */
.student-hero{padding:34px;background:linear-gradient(125deg,#102c67,#156f88);color:#fff;border-radius:28px;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:0 18px 45px rgba(18,56,112,.18)}.student-hero h1{margin:6px 0}.student-hero p{margin:0;color:#d8e9f5}.student-hero .eyebrow{color:#74ead7}.student-nav{display:flex;gap:8px;padding:8px;margin:20px 0;background:var(--surface);border:1px solid var(--line);border-radius:16px;overflow-x:auto}.student-nav a{padding:9px 15px;border-radius:10px;color:var(--ink-soft);font-weight:800;white-space:nowrap}.student-nav a.active,.student-nav a:hover{background:var(--surface-soft);color:var(--primary)}
.stats-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin:20px 0}.stat-card{background:var(--surface);border:1px solid var(--line);border-radius:18px;padding:20px;color:var(--ink);box-shadow:0 8px 26px rgba(25,53,103,.04);transition:.2s}.stat-card:hover{transform:translateY(-3px);border-color:#9eb6ee}.stat-card span,.stat-card small{display:block;color:var(--ink-soft)}.stat-card strong{display:block;font-size:2rem;color:var(--primary);line-height:1.4}.dashboard-grid{display:grid;grid-template-columns:minmax(0,1.7fr) minmax(270px,.8fr);gap:20px}.panel-heading,.page-heading{display:flex;justify-content:space-between;gap:18px;align-items:center}.page-heading{margin:14px 0 22px}.page-heading h1,.panel-heading h2{margin:2px 0}.request-row,.file-row{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 4px;border-bottom:1px solid var(--line);color:var(--ink)}.request-row:last-child,.file-row:last-child{border:0}.request-row div,.file-row div{display:flex;flex-direction:column;min-width:0}.request-row small,.file-row small{color:var(--ink-soft)}.status-pill{padding:5px 11px;border-radius:20px;background:#e7f0ff;color:#3157b8;font-size:.7rem;font-weight:900;white-space:nowrap}.notice-item{padding:12px 0;border-bottom:1px solid var(--line)}.notice-item p{font-size:.75rem;color:var(--ink-soft);margin:2px 0}.empty-state{text-align:center;padding:45px 15px;color:var(--ink-soft)}.empty-state.compact{padding:20px}.back-link{display:inline-flex;align-items:center;gap:7px;margin-bottom:14px;font-weight:900;color:var(--ink-soft)}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}.field{display:flex;flex-direction:column;gap:7px}.field>span,.field legend{font-weight:900}.field small{color:var(--ink-soft)}.span-2{grid-column:1/-1}.form-actions{display:flex;justify-content:flex-end;gap:10px}.check-row{display:block;padding:6px}.upload-zone{display:flex;justify-content:space-between;align-items:center;border:2px dashed #9db2db}.upload-zone label{flex:1;display:flex;flex-direction:column}.upload-zone input{margin-top:8px}
.chat-shell{height:min(760px,calc(100vh - 150px));min-height:520px;border:1px solid var(--line);border-radius:24px;background:#e9eef1;display:flex;flex-direction:column;overflow:hidden;box-shadow:var(--shadow)}[data-theme=dark] .chat-shell{background:#101d32}.chat-header{display:flex;align-items:center;gap:13px;padding:14px 18px;background:var(--surface);border-bottom:1px solid var(--line)}.chat-header h1{font-size:1rem;margin:0}.chat-header p{font-size:.7rem;color:var(--ink-soft);margin:0}.chat-header .btn{margin-inline-start:auto}.chat-avatar{width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:linear-gradient(135deg,#3157dc,#0da6a4);color:#fff;font-weight:900}.chat-feed{flex:1;overflow-y:auto;padding:22px;display:flex;flex-direction:column;gap:8px;background-image:radial-gradient(rgba(23,50,121,.06) 1px,transparent 1px);background-size:20px 20px}.chat-bubble{width:fit-content;max-width:min(78%,650px);padding:8px 12px;border-radius:15px;background:var(--surface);box-shadow:0 2px 5px rgba(0,0,0,.06);overflow-wrap:anywhere}.chat-bubble.mine{align-self:flex-start;background:#d9fdd3;border-bottom-left-radius:4px;color:#173224}[data-theme=dark] .chat-bubble.mine{background:#175b50;color:#fff}.chat-bubble.theirs{align-self:flex-end;border-bottom-right-radius:4px}.chat-bubble small{display:block;font-size:.65rem;font-weight:900;color:var(--primary)}.chat-bubble p{margin:2px 0;line-height:1.8;white-space:pre-wrap}.chat-bubble time{display:block;text-align:left;color:#708078;font-size:.6rem}.chat-file{display:flex;gap:8px;padding:8px;border-radius:9px;background:rgba(255,255,255,.55);font-size:.72rem}.chat-file span{color:var(--ink-soft)}.chat-composer{display:flex;align-items:flex-end;gap:8px;padding:10px;background:var(--surface);position:relative}.chat-composer textarea{min-height:44px;max-height:130px;resize:none;flex:1;border-radius:22px}.attach-button{width:44px;height:44px;display:grid;place-items:center;border-radius:50%;background:var(--surface-soft);cursor:pointer;font-size:1.4rem}.attach-button input{display:none}.send-button{border-radius:22px!important;min-height:44px!important}.upload-progress{position:absolute;right:12px;left:12px;bottom:2px;height:3px;background:var(--line)}.upload-progress span{display:block;height:100%;width:0;background:var(--turquoise)}
@media(max-width:900px){.stats-grid{grid-template-columns:repeat(2,1fr)}.dashboard-grid{grid-template-columns:1fr}.student-hero{align-items:flex-start}.header-actions .account-name,.header-actions .logout-form{display:none}}
@media(max-width:640px){.shell{width:min(100% - 24px,1240px)}.main-content{padding-top:20px}.student-hero{padding:24px;display:block}.student-hero .btn{margin-top:16px;width:100%}.stats-grid{gap:9px}.stat-card{padding:14px}.stat-card:last-child{grid-column:1/-1}.page-heading{align-items:flex-start}.form-grid{grid-template-columns:1fr}.span-2{grid-column:auto}.panel{padding:18px}.chat-shell{height:calc(100dvh - 135px);min-height:500px;border-radius:18px}.chat-feed{padding:12px}.chat-bubble{max-width:88%}.chat-composer{padding:8px}.nav-whatsapp{display:inline-flex!important;padding:8px 10px!important}.nav-whatsapp span{display:inline!important;font-size:.65rem}.theme-switch{display:none}.brand-copy small{display:none}.header-inner{gap:8px}.header-actions{gap:5px}.upload-zone{display:block}.upload-zone button{margin-top:12px;width:100%}}
.upload-item{display:grid;grid-template-columns:minmax(100px,1fr) minmax(100px,220px) 45px;gap:10px;align-items:center;margin:8px 0;font-size:.72rem}.upload-item progress{width:100%;accent-color:var(--turquoise)}