:root{--ink:#243746;--muted:#7b8494;--cream:#F8F5EF;--paper:#fffefa;--violet:#B9603F;--coral:#B9603F;--mint:#b9f1dc;--line:#e9e8e2;--font-sans:'Avenir Next',Avenir,Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',sans-serif;--font-serif:'Iowan Old Style',Georgia,'Times New Roman',serif}
*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:88px}
body{margin:0;background:var(--cream);color:var(--ink);font-family:var(--font-sans);font-size:14px;-webkit-font-smoothing:antialiased}
button,input{font:inherit}button{cursor:pointer}a{color:inherit;text-decoration:none}.section-shell{width:min(1200px,calc(100% - 80px));margin:0 auto}
.demo-ribbon{height:29px;display:flex;justify-content:center;align-items:center;gap:9px;background:#E8F2FA;color:#B9603F;font-size:9px;font-weight:700;letter-spacing:1.3px}.pulse-dot{width:6px;height:6px;border-radius:50%;background:#B9603F;box-shadow:0 0 0 4px #B9603F20;animation:pulse 2s ease-in-out infinite}.ribbon-divider{opacity:.45}
.site-header{height:78px;padding:0 max(40px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;background:var(--cream);position:relative;z-index:10;border-bottom:1px solid #e7e6df}.brand{display:flex;align-items:center;gap:10px;min-width:170px}.brand-mark{position:relative;width:37px;height:37px;display:grid;place-items:center;border-radius:12px;background:var(--ink);color:white;font-family:var(--font-serif);font-size:21px;font-style:italic;box-shadow:0 5px 12px #2437461c}.brand-mark i{position:absolute;width:7px;height:7px;border-radius:50%;background:var(--coral);right:-2px;top:1px;border:1.5px solid var(--cream)}.brand-copy{display:flex;flex-direction:column;gap:2px;letter-spacing:1.2px}.brand-copy strong{font-size:11px;font-weight:700}.brand-copy small{font-size:8px;letter-spacing:1.7px;color:#8a91a0}.main-nav{display:flex;align-items:center;gap:35px;margin-left:auto;margin-right:38px}.main-nav a,.nav-link{font-size:12px;font-weight:500;color:#606b7b;transition:color .2s}.main-nav a:hover,.nav-link:hover{color:var(--violet)}.nav-link{border:0;background:none;padding:0}.button{display:inline-flex;align-items:center;justify-content:center;gap:12px;border:0;border-radius:9px;font-weight:600;transition:transform .2s,box-shadow .2s,background .2s}.button:hover{transform:translateY(-2px)}.button-small{height:40px;padding:0 17px;font-size:11px}.button-dark{background:var(--ink);color:white;box-shadow:0 8px 20px #2437461f}.button-dark:hover{background:#385466;box-shadow:0 10px 22px #2437462a}.button-icon{font-size:14px;color:#E0A51A}.menu-toggle{display:none;background:none;border:0;padding:8px}.menu-toggle span{display:block;width:20px;height:1px;background:var(--ink);margin:5px}
.hero{min-height:558px;display:grid;grid-template-columns:1.03fr .97fr;align-items:center;position:relative;padding-top:35px;padding-bottom:65px}.hero-copy{position:relative;z-index:2;padding:8px 0 0 16px;animation:rise-in .8s both}.eyebrow{display:flex;align-items:center;gap:9px;color:#777e8c;font-size:9px;font-weight:700;letter-spacing:1.8px}.eyebrow-line{width:20px;height:1px;background:var(--coral)}h1,h2,p{margin-top:0}.hero h1{font-size:clamp(46px,5.8vw,76px);line-height:.99;letter-spacing:-4px;margin:22px 0 20px;font-weight:500}.highlight-word{font-family:var(--font-serif);font-style:italic;font-weight:500;color:var(--violet);letter-spacing:-3px}.hero-description{max-width:435px;color:#6d7789;line-height:1.85;font-size:14px;margin-bottom:27px}.hero-actions{display:flex;align-items:center;gap:24px}.button-primary{height:48px;padding:0 21px;background:var(--violet);color:white;font-size:12px;box-shadow:0 10px 22px #B9603F3d}.button-primary:hover{background:#9D4D34;box-shadow:0 12px 26px #B9603F51}.button-primary span{font-size:17px;font-weight:400}.text-button{background:none;border:0;color:#525f73;font-size:11px;font-weight:600;display:flex;align-items:center;gap:9px;padding:10px}.text-button:hover{color:var(--violet)}.play-icon{display:grid;place-items:center;border:1px solid #d8d7d1;width:25px;height:25px;border-radius:50%;font-size:11px;color:var(--violet);transition:all .2s}.text-button:hover .play-icon{background:#E8F2FA;border-color:#E0A51A}.hero-proof{display:flex;align-items:center;gap:12px;margin-top:54px}.avatar-stack{display:flex;padding-left:3px}.avatar-stack span{width:26px;height:26px;border-radius:50%;border:2px solid var(--cream);margin-left:-5px;background:#efb5a7;color:#6b3f39;display:grid;place-items:center;font-size:8px;font-weight:700}.avatar-stack span:nth-child(2){background:#c4d4f5;color:#3b527e}.avatar-stack span:nth-child(3){background:#f7d788;color:#675120}.avatar-stack span:nth-child(4){background:var(--ink);color:#fff;font-size:9px}.hero-proof>div:nth-child(2),.hero-stat{display:flex;flex-direction:column;gap:3px}.hero-proof strong{font-size:10px}.hero-proof small{font-size:9px;color:#858d99}.proof-divider{height:28px;width:1px;background:#ddddd6;margin-left:8px;margin-right:4px}.hero-stat strong{font-family:var(--font-serif);font-size:17px;font-weight:500;color:var(--violet)}.hero-stat small{font-size:8px;color:#858d99}
.hero-visual{height:438px;position:relative;display:grid;place-items:center;animation:fade-in 1s .15s both}.visual-halo{position:absolute;border-radius:50%;filter:blur(1px)}.halo-one{width:350px;height:350px;background:radial-gradient(circle,#E8F2FA 0,#E8F2FA78 48%,#E8F2FA00 73%);animation:halo 7s ease-in-out infinite}.halo-two{width:254px;height:254px;background:#f4d7cd80;filter:blur(35px);transform:translate(98px,55px);animation:halo-two 9s ease-in-out infinite}.orbit{position:absolute;border:1px solid #D7A39440;border-radius:50%;transform:rotate(-23deg)}.orbit-one{width:400px;height:235px;animation:orbit-breathe 8s ease-in-out infinite}.orbit-two{width:345px;height:280px;border-color:#E0A51A40;transform:rotate(36deg)}.paper-main{width:265px;height:322px;position:relative;z-index:2;border-radius:8px 8px 15px 8px;background:linear-gradient(145deg,#fffefa 5%,#F8F5EF 100%);padding:26px 27px;box-shadow:0 28px 55px #44416d20,0 4px 12px #5654770e;transform:rotate(-5deg);animation:float-paper 6s ease-in-out infinite}.paper-main:before{content:'';position:absolute;inset:0;border:1px solid #fff;border-radius:inherit;pointer-events:none}.paper-top,.paper-bottom{display:flex;align-items:center;justify-content:space-between}.paper-kicker{font-size:8px;font-weight:700;letter-spacing:1.7px;color:#777c8b}.paper-kicker span{color:var(--coral);margin-left:3px}.paper-menu{font-size:14px;letter-spacing:1px;color:#a7abb4}.paper-title{font-size:40px;line-height:.97;letter-spacing:-1.5px;font-weight:500;margin-top:41px}.paper-title em{font-family:var(--font-serif);font-weight:500;color:var(--violet)}.paper-rule{width:44px;height:2px;background:var(--coral);margin-top:20px}.paper-lines{display:flex;flex-direction:column;gap:8px;margin-top:18px}.paper-lines i{height:3px;background:#e8e7ee;border-radius:5px;width:92%}.paper-lines i:nth-child(2){width:76%}.paper-lines i:nth-child(3){width:58%}.paper-bottom{position:absolute;left:27px;right:27px;bottom:23px}.paper-tag{font-size:7px;font-weight:700;letter-spacing:1.3px;color:#797f8d}.paper-arrow{width:24px;height:24px;display:grid;place-items:center;border-radius:50%;background:#F4E7E0;color:var(--violet);font-size:14px}.paper-stamp{position:absolute;right:22px;top:111px;width:34px;height:34px;display:grid;place-items:center;border:1px solid #F0DCCF;border-radius:50%;font-family:var(--font-serif);font-style:italic;color:#B9603F;font-size:17px;transform:rotate(8deg)}.floating-note{position:absolute;z-index:3;display:flex;align-items:center;gap:9px;background:#fffefa;border:1px solid #ffffff;box-shadow:0 13px 35px #303c5920;border-radius:11px;padding:10px 12px;animation:float-note 5s ease-in-out infinite}.floating-note strong,.floating-note small{display:block;white-space:nowrap}.floating-note strong{font-size:9px}.floating-note small{font-size:8px;color:#8a91a0;margin-top:3px}.note-left{left:0;top:110px}.note-right{right:-2px;bottom:82px;animation-delay:-2s}.note-icon{width:29px;height:29px;display:grid;place-items:center;border-radius:8px;font-size:16px;font-weight:600}.note-icon.violet{background:#F6E8E1;color:#B9603F}.note-icon.coral{background:#fff0ea;color:#ee795f}.note-check,.note-plus{margin-left:5px;color:#68b691;font-size:12px}.note-plus{color:#a1a5b0}.floating-label{position:absolute;z-index:3;font-size:8px;font-weight:700;letter-spacing:.3px;color:#727a8a;background:#ffffffd9;padding:9px 12px;border-radius:20px;box-shadow:0 6px 18px #303c5910}.label-top{top:38px;right:43px}.mini-spark{color:var(--coral);margin-right:5px}.label-bottom{bottom:31px;left:37px}.live-ring{display:inline-block;width:7px;height:7px;border-radius:50%;background:#75c6a4;margin-right:6px;box-shadow:0 0 0 3px #75c6a428}.visual-spark{position:absolute;color:#E0A51A;font-size:16px;animation:twinkle 2.5s ease-in-out infinite}.spark-a{top:115px;right:64px}.spark-b{bottom:90px;left:54px;color:#E0A51A;animation-delay:1s}.hero-scroll{position:absolute;bottom:13px;left:16px;display:flex;align-items:center;gap:9px;color:#9ca1ab;font-size:7px;letter-spacing:1.4px}.scroll-line{height:25px;width:1px;background:linear-gradient(var(--coral),#f4cfc4)}
.trust-strip{background:#eeede7;border-top:1px solid #e6e5dd;border-bottom:1px solid #e6e5dd}.trust-inner{max-width:1080px;margin:auto;min-height:66px;display:flex;align-items:center;justify-content:space-between;gap:18px;padding:0 30px}.trust-inner span{font-size:8px;letter-spacing:1.35px;font-weight:700;color:#878d96;white-space:nowrap}.trust-inner i{width:4px;height:4px;background:#c8c6bf;border-radius:50%}
.departments-section{padding-top:104px;padding-bottom:97px}.section-heading{display:flex;justify-content:space-between;align-items:flex-end;margin-bottom:37px}.section-heading h2,.library-top h2{font-size:43px;font-weight:500;letter-spacing:-2px;margin:13px 0 0}.serif-accent{font-family:var(--font-serif);font-style:italic;color:var(--violet);font-weight:500;letter-spacing:-1px}.eyebrow-light{color:#858c97}.section-heading>p{max-width:337px;line-height:1.8;color:#7b8492;font-size:12px;margin:0 8px 3px 25px}.department-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.department-card{height:208px;position:relative;overflow:hidden;text-align:left;border:1px solid #ecebe5;border-radius:11px;padding:21px 22px;background:#fffefa;transition:transform .25s,box-shadow .25s,border-color .25s;color:var(--ink)}.department-card:hover{transform:translateY(-5px);box-shadow:0 16px 32px #24314b12;border-color:#F0DCCF}.dept-number{display:block;font-size:7px;letter-spacing:1.25px;color:#9399a4;font-weight:700}.dept-icon{position:absolute;right:22px;top:21px;width:36px;height:36px;display:grid;place-items:center;border-radius:11px;font-size:15px;font-weight:600;transition:transform .4s}.department-card:hover .dept-icon{transform:rotate(-9deg) scale(1.06)}.icon-cs{background:#F6E8E1;color:#B9603F}.icon-ece{background:#fff0e9;color:#eb806a;font-size:23px}.icon-mech{background:#e7f6ee;color:#48a882;font-size:20px}.icon-civil{background:#edf3ff;color:#6e8cc9;font-size:21px}.icon-commerce{background:#fff4db;color:#c39235;font-size:18px}.icon-math{background:#fceaf3;color:#c96a98;font-family:var(--font-serif);font-size:21px}.department-card>strong{display:block;font-size:22px;font-weight:500;line-height:1.13;letter-spacing:-.7px;margin-top:32px}.dept-footer{position:absolute;left:22px;right:22px;bottom:17px;display:flex;justify-content:space-between;align-items:center;border-top:1px solid #f0efea;padding-top:12px}.dept-footer small{font-size:8px;color:#8e95a0}.dept-footer b{font-size:13px;color:#B9603F;font-weight:400}.card-ece{background:#fffdfa}.card-civil{background:#fffdfa}.departments-note{display:flex;align-items:center;gap:8px;margin-top:22px;font-size:9px;color:#9197a2}.note-star{color:var(--coral);font-size:13px}
.library-section{background:#eeede7;padding:91px 0 98px;border-top:1px solid #e5e4dd}.library-top{display:flex;justify-content:space-between;align-items:flex-end}.library-top h2{margin-bottom:0}.library-search{width:300px;height:43px;background:#fffefa;border:1px solid #e6e4dc;border-radius:8px;display:flex;align-items:center;gap:10px;padding:0 12px}.search-icon{font-size:24px;color:#8f8ba7;line-height:1;transform:rotate(-15deg)}.library-search input{width:100%;border:0;background:transparent;outline:0;font-size:10px;color:var(--ink)}.library-search input::placeholder{color:#a1a5ae}.library-search:focus-within{border-color:#D7A394;box-shadow:0 0 0 3px #B9603F16}.library-search kbd{font-size:8px;white-space:nowrap;color:#a3a6ae;border:1px solid #e7e6df;border-radius:4px;padding:3px 5px}.filter-row{display:flex;gap:7px;margin:32px 0 17px;overflow:auto;padding-bottom:3px}.filter-chip{display:flex;align-items:center;gap:8px;border:1px solid #e4e2dc;border-radius:20px;background:transparent;padding:8px 13px;color:#798191;font-size:9px;white-space:nowrap;transition:all .2s}.filter-chip:hover{border-color:#E0A51A;color:var(--violet)}.filter-chip.is-active{background:var(--ink);color:white;border-color:var(--ink)}.filter-chip span{border-radius:10px;padding:2px 5px;background:#ffffff24;font-size:7px}.notes-list{border-top:1px solid #ddddd7}.note-row{min-height:99px;display:grid;grid-template-columns:46px minmax(230px,1fr) 135px 35px;align-items:center;gap:16px;border-bottom:1px solid #ddddd7;padding:14px 12px 14px 3px;transition:background .2s}.note-row:hover{background:#f6f5f0}.file-type{width:38px;height:43px;border-radius:6px;display:grid;place-items:center;font-size:8px;font-weight:700;letter-spacing:.5px;position:relative}.file-type:after{content:'';position:absolute;right:0;top:0;border-style:solid;border-width:0 0 9px 9px;border-color:transparent transparent #eeede7 transparent}.file-purple{background:#F3DED5;color:#B9603F}.file-coral{background:#ffe8e1;color:#dd795f}.file-blue{background:#e0ebfc;color:#6586c4}.file-green{background:#e0f2e6;color:#539872}.file-yellow{background:#f8edcc;color:#b49340}.file-pink{background:#f7e1ed;color:#bd6992}.note-info .note-dept{font-size:7px;font-weight:700;letter-spacing:1.2px;color:#898f9b}.note-dept i{font-style:normal;color:var(--coral);margin:0 4px}.note-info h3{font-size:14px;font-weight:600;margin:6px 0 4px;letter-spacing:-.2px}.note-info p{font-size:9px;color:#8b929e;margin:0}.note-meta{display:flex;flex-direction:column;gap:5px;color:#9299a4;font-size:8px}.note-meta small{color:#b0b4bb;font-size:8px}.download-button{width:32px;height:32px;border:1px solid #dfddd7;border-radius:50%;background:transparent;color:#B9603F;font-size:14px;transition:all .2s}.download-button:hover{background:var(--violet);border-color:var(--violet);color:white;transform:translate(2px,-2px)}.library-demo-note{margin-top:19px;text-align:right;color:#9b9ea4;font-size:8px}.library-demo-note span{color:#B9603F;font-weight:700;letter-spacing:1px;margin-right:8px}.empty-state{text-align:center;padding:60px 20px;color:#9197a2}.empty-state>span{display:block;font-size:30px;color:#B9603F;margin-bottom:9px}.empty-state strong{display:block;color:var(--ink);font-size:14px}.empty-state p{font-size:10px}.empty-state button{border:0;background:none;color:var(--violet);font-size:10px;text-decoration:underline}
.closing-section{position:relative;overflow:hidden;background:#243746;color:white;padding:91px 0 78px;text-align:center}.closing-section:before,.closing-section:after{content:'';position:absolute;width:360px;height:360px;border:1px solid #ffffff0d;border-radius:50%;top:-153px;left:-127px}.closing-section:after{width:500px;height:500px;top:-230px;left:-197px}.closing-orb{position:absolute;width:330px;height:330px;border-radius:50%;background:#B9603F26;filter:blur(65px);right:-80px;bottom:-175px;animation:halo 8s ease-in-out infinite}.closing-inner{position:relative;z-index:1}.closing-star{color:var(--coral);font-size:18px;margin-bottom:19px;animation:twinkle 3s infinite}.closing-section .eyebrow{justify-content:center;color:#b5bcc7}.closing-section .eyebrow-line{background:var(--coral)}.closing-section h2{font-size:48px;line-height:1.05;letter-spacing:-2.5px;font-weight:500;margin:18px 0}.closing-section .serif-accent{color:#E0A51A}.closing-section p{color:#bdc4cf;font-size:11px;margin-bottom:21px}.button-light{height:43px;padding:0 18px;font-size:10px}.closing-footnote{margin-top:33px;color:#8390a2;font-size:8px;letter-spacing:.3px}.site-footer{height:80px;padding:0 max(40px,calc((100vw - 1200px)/2));display:flex;align-items:center;justify-content:space-between;background:#243746;color:white}.footer-brand .brand-mark{width:30px;height:30px;font-size:17px;background:#26334c}.footer-brand .brand-mark i{border-color:#243746;width:6px;height:6px}.footer-brand .brand-copy strong{font-size:9px}.footer-brand .brand-copy small{font-size:7px}.footer-center{color:#929baa;font-size:9px}.footer-right{display:flex;gap:12px;color:#b7bfcc;font-size:7px;letter-spacing:1px}.footer-right span{color:#778397}
.modal-backdrop{position:fixed;inset:0;z-index:30;background:#243746d6;display:grid;place-items:center;padding:20px;backdrop-filter:blur(8px);animation:fade-in .2s both}.modal-backdrop[hidden]{display:none}.modal-card{position:relative;width:min(100%,440px);max-height:min(92vh,780px);overflow-y:auto;background:#fffefa;border-radius:16px;padding:38px 40px 29px;box-shadow:0 28px 80px #172b3965;animation:modal-in .3s cubic-bezier(.2,.75,.25,1) both}.modal-close{position:absolute;right:19px;top:15px;border:0;background:#f1f0eb;color:#727989;border-radius:50%;width:29px;height:29px;font-size:19px;line-height:1}.modal-close:hover{background:#E8F2FA;color:var(--violet)}.modal-mark{width:35px;height:35px;background:var(--ink);color:white;border-radius:11px;display:grid;place-items:center;font-family:var(--font-serif);font-style:italic;font-size:19px;margin-bottom:23px}.modal-card h2{font-size:32px;font-weight:500;letter-spacing:-1.5px;line-height:1.08;margin:12px 0}.modal-copy{font-size:10px;line-height:1.7;color:#858c98;margin-bottom:23px}.checkin-card form{display:flex;flex-direction:column}.checkin-card label{font-size:9px;font-weight:700;color:#626d7d;margin:0 0 7px}.checkin-card input{height:43px;border:1px solid #e2e1dc;border-radius:7px;background:#fff;padding:0 12px;color:var(--ink);font-size:11px;outline:none;margin-bottom:16px}.checkin-card input:focus{border-color:#D7A394;box-shadow:0 0 0 3px #B9603F1a}.checkin-card input::placeholder{color:#afb2ba}.form-submit{width:100%;margin-top:2px}.privacy-note{display:flex;gap:7px;color:#9a9eaa;font-size:8px;line-height:1.6;margin:16px 0 0}.privacy-note span{color:#B9603F}.admin-card{width:min(100%,750px);padding:35px 38px 27px}.admin-header{display:flex;align-items:center;justify-content:space-between}.admin-header h2{margin-bottom:0}.demo-badge{font-size:7px;font-weight:700;letter-spacing:1.2px;color:#927c26;background:#faf1d6;border-radius:10px;padding:7px 10px}.admin-description{color:#858c98;font-size:10px;margin:12px 0 20px}.admin-summary{height:72px;display:flex;align-items:center;gap:13px;padding:12px 15px;background:#E8F2FA;border-radius:8px;margin-bottom:20px}.summary-icon{width:32px;height:32px;border-radius:9px;background:#fff;color:#B9603F;display:grid;place-items:center}.admin-summary>div{display:flex;flex-direction:column;gap:2px}.admin-summary strong{font-family:var(--font-serif);font-weight:500;font-size:21px;color:#243746}.admin-summary small{color:#828492;font-size:8px}.summary-side{margin-left:auto;padding-left:17px;border-left:1px solid #d9d5f0;min-width:92px}.summary-side strong{font-size:18px}.table-wrap{overflow-x:auto}table{border-collapse:collapse;width:100%;white-space:nowrap;text-align:left}th{padding:10px 8px;border-bottom:1px solid #e7e6df;color:#a1a5ad;font-size:7px;letter-spacing:1.1px}td{padding:12px 8px;border-bottom:1px solid #efeee9;color:#727b89;font-size:9px}td:first-child{color:#39465a;font-weight:600}.student-avatar{display:inline-grid;place-items:center;width:25px;height:25px;vertical-align:middle;border-radius:50%;background:#F3DED5;color:#B9603F;font-size:7px;margin-right:7px}.avatar-peach{background:#ffe5da;color:#c8715d}.avatar-lilac{background:#efe2f5;color:#996fb0}.login-count{display:inline-grid;place-items:center;min-width:24px;height:22px;border-radius:7px;background:#E8F2FA;color:#B9603F;font-weight:700;padding:0 5px}.admin-footnote{font-size:8px;line-height:1.6;color:#9a9eaa;margin:16px 0 0}.toast{position:fixed;z-index:50;left:50%;bottom:24px;transform:translate(-50%,16px);background:#18253c;color:white;padding:12px 17px;border-radius:8px;font-size:10px;box-shadow:0 8px 24px #24374640;opacity:0;pointer-events:none;transition:all .25s;max-width:min(90vw,470px);text-align:center}.toast.is-visible{opacity:1;transform:translate(-50%,0)}.no-scroll{overflow:hidden}
.note-row[hidden]{display:none}
@keyframes pulse{0%,100%{box-shadow:0 0 0 3px #B9603F20}50%{box-shadow:0 0 0 6px #B9603F0c}}@keyframes rise-in{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}@keyframes fade-in{from{opacity:0}to{opacity:1}}@keyframes modal-in{from{opacity:0;transform:translateY(12px) scale(.985)}to{opacity:1;transform:translateY(0) scale(1)}}@keyframes float-paper{0%,100%{transform:rotate(-5deg) translateY(0)}50%{transform:rotate(-3.5deg) translateY(-9px)}}@keyframes float-note{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}@keyframes halo{0%,100%{transform:scale(1);opacity:.85}50%{transform:scale(1.07);opacity:1}}@keyframes halo-two{0%,100%{transform:translate(98px,55px)}50%{transform:translate(75px,35px)}}@keyframes orbit-breathe{0%,100%{transform:rotate(-23deg) scale(1)}50%{transform:rotate(-19deg) scale(1.04)}}@keyframes twinkle{0%,100%{opacity:.45;transform:scale(.88) rotate(0)}50%{opacity:1;transform:scale(1.08) rotate(15deg)}}
@media(max-width:900px){.section-shell{width:min(100% - 48px,700px)}.site-header{padding:0 24px}.main-nav{gap:20px;margin-right:22px}.hero{grid-template-columns:1fr 1fr;min-height:520px}.hero-copy{padding-left:0}.hero h1{font-size:58px}.hero-visual{transform:scale(.86);margin:0 -25px}.note-left{left:-14px}.note-right{right:-20px}.trust-inner{padding:0 24px}.trust-inner span{font-size:7px;letter-spacing:.9px}.department-card{padding:18px}.department-card>strong{font-size:19px}.dept-footer{left:18px;right:18px}.dept-footer small{font-size:7px}.site-footer{padding:0 24px}}
@media(max-width:650px){html{scroll-padding-top:68px}.demo-ribbon{font-size:8px;letter-spacing:1px}.site-header{height:66px;padding:0 19px}.brand{min-width:auto}.brand-mark{width:33px;height:33px}.brand-copy strong{font-size:10px}.brand-copy small{font-size:7px}.site-header>.button{margin-left:auto;margin-right:10px}.button-small{height:36px;padding:0 12px;font-size:9px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:65px;left:0;right:0;margin:0;padding:16px 20px 20px;background:var(--cream);border-bottom:1px solid var(--line);box-shadow:0 14px 20px #24374610;flex-direction:column;align-items:flex-start;gap:17px}.main-nav.is-open{display:flex}.main-nav a,.nav-link{font-size:12px}.section-shell{width:calc(100% - 38px)}.hero{display:flex;flex-direction:column;align-items:stretch;padding-top:50px;padding-bottom:54px;min-height:auto}.hero-copy{padding:0}.hero h1{font-size:56px;letter-spacing:-3px;margin:19px 0 17px}.highlight-word{letter-spacing:-2px}.hero-description{font-size:12px;max-width:390px;line-height:1.8}.hero-actions{gap:9px;flex-wrap:wrap}.button-primary{height:44px;padding:0 16px;font-size:10px}.text-button{font-size:10px;padding:7px}.hero-proof{margin-top:29px}.hero-visual{height:330px;transform:scale(.82);transform-origin:top center;margin:-2px -35px -25px}.paper-main{width:235px;height:285px;padding:22px}.paper-title{font-size:35px;margin-top:33px}.paper-bottom{left:22px;right:22px;bottom:19px}.paper-stamp{top:100px;right:18px}.floating-note{padding:8px 9px;gap:7px}.note-left{left:0;top:80px}.note-right{right:0;bottom:60px}.floating-label{font-size:7px}.label-top{right:30px;top:22px}.label-bottom{left:35px;bottom:18px}.hero-scroll{display:none}.trust-inner{overflow:hidden;justify-content:flex-start;padding:0 19px;gap:14px;min-height:58px}.trust-inner span{font-size:7px}.trust-inner span:nth-of-type(n+3),.trust-inner i:nth-of-type(n+2){display:none}.departments-section{padding-top:66px;padding-bottom:65px}.section-heading{display:block;margin-bottom:24px}.section-heading h2,.library-top h2{font-size:36px;letter-spacing:-1.6px}.section-heading>p{font-size:10px;max-width:340px;margin:12px 0 0}.department-grid{grid-template-columns:repeat(2,1fr);gap:9px}.department-card{height:175px;padding:15px}.dept-number{font-size:6px;letter-spacing:.8px}.dept-icon{width:30px;height:30px;right:14px;top:14px;border-radius:9px;font-size:13px}.department-card>strong{font-size:17px;margin-top:29px}.dept-footer{left:15px;right:15px;bottom:13px;padding-top:9px}.dept-footer small{font-size:6px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:calc(100% - 15px)}.dept-footer b{font-size:11px}.departments-note{font-size:8px;line-height:1.5;align-items:flex-start}.library-section{padding:64px 0 67px}.library-top{display:block}.library-top h2{margin-bottom:19px}.library-search{width:100%;height:41px}.filter-row{margin:17px 0 12px;gap:6px}.filter-chip{font-size:8px;padding:7px 10px}.note-row{grid-template-columns:38px minmax(0,1fr) 31px;gap:10px;min-height:84px;padding:12px 2px}.file-type{width:33px;height:38px;font-size:7px}.note-info .note-dept{font-size:6px;letter-spacing:.8px}.note-info h3{font-size:11px;margin:5px 0 3px}.note-info p{font-size:8px;line-height:1.4}.note-meta{display:none}.download-button{width:29px;height:29px;font-size:12px}.library-demo-note{text-align:left;line-height:1.6;font-size:7px}.closing-section{padding:68px 0 56px}.closing-section h2{font-size:40px;letter-spacing:-2px}.closing-section p{max-width:270px;margin:0 auto 19px;font-size:10px;line-height:1.6}.site-footer{height:auto;min-height:90px;padding:17px 19px;display:grid;grid-template-columns:1fr auto;row-gap:11px}.footer-center{grid-column:1/-1;grid-row:2;font-size:8px}.footer-right{font-size:6px;gap:7px}.footer-brand .brand-mark{width:27px;height:27px}.footer-brand .brand-copy strong{font-size:8px}.footer-brand .brand-copy small{font-size:6px}.modal-card{padding:32px 25px 24px}.modal-card h2{font-size:28px}.admin-card{padding:30px 19px 21px}.admin-header{align-items:flex-start;gap:6px}.admin-header h2{font-size:25px}.demo-badge{margin-top:18px;font-size:6px}.admin-description{font-size:9px}.table-wrap{margin:0 -8px}th{font-size:6px;padding:9px 6px}td{font-size:8px;padding:11px 6px}.student-avatar{width:22px;height:22px;margin-right:4px}.login-count{height:20px;min-width:21px}.toast{bottom:15px;font-size:9px}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}}

/* Nrupathunga University demo branding */
.brand-mark.brand-logo{flex:0 0 47px;width:47px;height:47px;padding:2px;border-radius:9px;background:#fff;box-shadow:0 3px 10px #24374616;overflow:hidden}
.brand-logo img{display:block;width:100%;height:100%;object-fit:contain;border-radius:7px}
.modal-logo{width:49px;height:49px;padding:2px;background:#fff;border:1px solid var(--line);overflow:hidden}
.modal-logo img{display:block;width:100%;height:100%;object-fit:contain;border-radius:7px}
.site-footer .footer-center a{color:#E0A51A;font-weight:600;border-bottom:1px solid #E0A51A70;padding-bottom:2px}
.site-footer .footer-center a:hover{color:#F0C253;border-color:#F0C253}
.trust-strip,.library-section{background:#E8F2FA}
.card-cs .icon-cs{background:#E8F2FA;color:#47677A}
.card-ece .icon-ece{background:#F6E8E1;color:#B9603F}
.card-mech .icon-mech{background:#FBF1D7;color:#A87508}
.card-civil .icon-civil{background:#E8F2FA;color:#47677A}
.card-commerce .icon-commerce{background:#FBF1D7;color:#A87508}
.card-math .icon-math{background:#F6E8E1;color:#B9603F}
.file-purple,.file-pink{background:#F3DED5;color:#B9603F}
.file-coral,.file-yellow{background:#FBF1D7;color:#A87508}
.file-blue,.file-green{background:#E8F2FA;color:#47677A}
.admin-summary{background:#E8F2FA}
.summary-icon{color:#B9603F}
.login-count{background:#F6E8E1;color:#B9603F}
@media(max-width:650px){.brand-mark.brand-logo{flex-basis:39px;width:39px;height:39px}.footer-brand .brand-mark.brand-logo{flex-basis:34px;width:34px;height:34px}}
@media(max-width:650px){.brand-copy small{font-size:6px;letter-spacing:.65px}}

/* AI tutor, private staff view, and connection forms */
.ai-section{position:relative;overflow:hidden;padding:92px 0;background:#F8F5EF}
.ai-shell{display:grid;grid-template-columns:minmax(230px,.78fr) minmax(0,1.22fr);align-items:center;gap:58px}
.ai-copy h2{margin:19px 0 16px;color:#243746;font-size:clamp(38px,5vw,56px);line-height:1.04;letter-spacing:-2.4px;font-weight:500}
.ai-copy>p{max-width:400px;color:#75808d;font-size:12px;line-height:1.8}
.ai-status{display:inline-flex;align-items:center;gap:8px;margin:7px 0 12px;padding:8px 11px;border:1px solid #e5e2db;border-radius:20px;color:#596878;background:#fffefa;font-size:9px;font-weight:700}
.status-dot{width:7px;height:7px;border-radius:50%;background:#E0A51A;box-shadow:0 0 0 4px #E0A51A20}
.ai-privacy-note{font-size:9px!important;line-height:1.65!important}
.ai-panel{overflow:hidden;border:1px solid #e8e4dc;border-radius:16px;background:#fffefa;box-shadow:0 22px 55px #24374612}
.ai-panel-top{display:flex;align-items:center;gap:10px;padding:16px 19px;border-bottom:1px solid #ece9e1}
.ai-orb{display:grid;place-items:center;width:34px;height:34px;border-radius:11px;background:#F6E8E1;color:#B9603F;font-size:17px}
.ai-panel-top>div{display:flex;flex-direction:column;gap:4px}.ai-panel-top strong{color:#243746;font-size:8px;letter-spacing:.9px}.ai-panel-top small{color:#9299a4;font-size:8px}
.ai-panel-badge{margin-left:auto;padding:6px 8px;border-radius:7px;background:#E8F2FA;color:#47677A;font-size:7px;font-weight:700;letter-spacing:.7px}
.ai-messages{display:flex;flex-direction:column;gap:11px;min-height:190px;max-height:330px;overflow:auto;padding:17px 19px;scroll-behavior:smooth}
.ai-message{width:fit-content;max-width:92%;padding:11px 13px;border:1px solid #ece9e1;border-radius:4px 12px 12px 12px;background:#F8F5EF;animation:topic-pop .25s ease-out both}
.ai-message-user{align-self:flex-end;border-color:#f0ddd4;border-radius:12px 4px 12px 12px;background:#F6E8E1}
.ai-message-label{display:block;margin-bottom:5px;color:#A87508;font-size:7px;font-weight:700;letter-spacing:1px}
.ai-message p{margin:0;color:#536171;font-size:10px;line-height:1.7;white-space:pre-wrap;overflow-wrap:anywhere}
.ai-message-note{display:block;margin-top:7px;color:#9299a4;font-size:7px}
.ai-form{padding:0 19px 17px}
.ai-form>label,.ai-material-label{display:block;margin:0 0 7px;color:#626d7d;font-size:8px;font-weight:700}
.ai-composer{display:flex;align-items:stretch;gap:8px}
.ai-composer textarea,.ai-material{width:100%;resize:vertical;min-height:51px;padding:11px 12px;border:1px solid #e2e1dc;border-radius:8px;background:#fff;color:#243746;font:inherit;font-size:10px;line-height:1.5;outline:none}
.ai-composer textarea:focus,.ai-material:focus{border-color:#D7A394;box-shadow:0 0 0 3px #B9603F1a}
.ai-composer textarea::placeholder,.ai-material::placeholder{color:#afb2ba}
.ai-send{align-self:stretch;min-width:76px;padding:0 12px;font-size:9px}
.ai-form-foot{display:flex;justify-content:space-between;gap:10px;margin:7px 0 14px;color:#9299a4;font-size:7px;line-height:1.5}
.ai-material{min-height:67px}
.ai-material-foot{margin-bottom:0}
.ai-send:disabled,.form-submit:disabled,.admin-access-row button:disabled{opacity:.55;cursor:wait;transform:none}
.consent-label{display:flex!important;align-items:flex-start;gap:9px;margin:0 0 15px!important;color:#727b89!important;font-size:8px!important;font-weight:500!important;line-height:1.6}
.checkin-card .consent-label input{flex:0 0 auto;width:15px;height:15px;margin:1px 0 0;accent-color:#B9603F}
.admin-access-form label{display:block;margin:0 0 7px;color:#626d7d;font-size:9px;font-weight:700}
.admin-access-row{display:flex;gap:8px}
.admin-access-row input{flex:1;min-width:0;height:42px;padding:0 12px;border:1px solid #e2e1dc;border-radius:7px;background:white;color:#243746;font-size:10px;outline:none}
.admin-access-row input:focus{border-color:#D7A394;box-shadow:0 0 0 3px #B9603F1a}
.admin-access-row button{flex:0 0 auto;height:42px;padding:0 14px;font-size:8px}
.admin-status{min-height:16px;margin:10px 0 15px;color:#9299a4;font-size:8px}
@media(max-width:850px){.ai-shell{grid-template-columns:1fr;gap:28px}.ai-copy{max-width:600px}.ai-section{padding:72px 0}}
@media(max-width:650px){.ai-section{padding:62px 0}.ai-shell{gap:20px}.ai-copy h2{font-size:39px;letter-spacing:-1.8px}.ai-copy>p{font-size:10px}.ai-panel-top{padding:13px}.ai-messages{padding:13px;min-height:155px}.ai-form{padding:0 13px 14px}.ai-composer{gap:6px}.ai-send{min-width:64px;padding:0 8px}.ai-form-foot{font-size:6px}.admin-access-row{flex-direction:column}.admin-access-row button{width:100%}}

/* Student study dashboard */
.study-dashboard{padding:88px 0 90px;background:#fffefa;border-top:1px solid #efede7;border-bottom:1px solid #efede7}
.study-dashboard-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:35px;margin-bottom:28px}
.study-dashboard-heading h2{margin:15px 0 0;color:#243746;font-size:44px;line-height:1.03;letter-spacing:-2px;font-weight:500}
.study-dashboard-heading>p{max-width:340px;margin:0 0 4px;color:#7d8792;font-size:10px;line-height:1.7}
.study-overview-grid{display:grid;grid-template-columns:.95fr 1.2fr 1fr;gap:13px}
.study-personal-grid{display:grid;grid-template-columns:1.15fr .9fr 1fr;gap:13px;margin-top:13px}
.study-card{position:relative;min-width:0;border:1px solid #e9e6df;border-radius:12px;background:#fff;padding:19px 19px 17px;box-shadow:0 7px 22px #24374608}
.study-card-kicker{display:block;color:#A87508;font-size:7px;font-weight:700;letter-spacing:1.15px}
.study-card h3{margin:9px 0;color:#243746;font-family:var(--font-serif);font-size:19px;line-height:1.2;font-weight:500;letter-spacing:-.2px}
.study-card>p{margin:0 0 12px;color:#7d8792;font-size:9px;line-height:1.6}
.study-card>small{display:block;margin-top:11px;color:#9ba1aa;font-size:7px;line-height:1.55}
.exam-card{background:linear-gradient(145deg,#F8F5EF,#fffefa 72%)}
.exam-card h3{min-height:46px;margin:12px 0 14px;font-size:20px}
.exam-card>label{display:block;margin-bottom:6px;color:#6f7a88;font-size:8px;font-weight:700}
.exam-date-row{display:flex;align-items:center;gap:6px}
.exam-date-row input{min-width:0;flex:1;height:35px;padding:0 8px;border:1px solid #e6e2da;border-radius:7px;background:#fff;color:#536171;font-size:9px}
.exam-date-row button{height:35px;padding:0 9px;border:1px solid #e6e2da;border-radius:7px;background:transparent;color:#858c98;font-size:8px}
.exam-date-row button:hover{border-color:#B9603F;color:#B9603F}
.daily-plan-card{background:#E8F2FA}
.daily-plan-card>p{margin-bottom:10px}
.daily-plan-list{display:flex;flex-direction:column;gap:8px;margin:0;padding:0;list-style:none}
.daily-plan-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:8px;padding:8px 9px;border:1px solid #d8e5ed;border-radius:8px;background:#ffffffa8}
.daily-plan-item label{display:flex;align-items:flex-start;gap:7px;color:#596878;font-size:8px;line-height:1.45;cursor:pointer}
.daily-plan-item input{flex:0 0 auto;width:13px;height:13px;margin:0;accent-color:#B9603F}
.daily-plan-item input:checked+span{text-decoration:line-through;color:#9299a4}
.daily-plan-action{border:0;background:transparent;color:#B9603F;font-size:7px;font-weight:700;white-space:nowrap}
.daily-plan-action:hover{text-decoration:underline}
.continue-card{background:#243746;color:#fff}
.continue-card .study-card-kicker{color:#E0A51A}
.continue-card h3{max-width:220px;margin:10px 0 5px;color:white;font-size:20px}
.continue-card p{min-height:29px;margin:0 0 12px;color:#c0c8d1;font-size:8px;line-height:1.55}
.continue-topic-mark{position:absolute;top:14px;right:16px;display:grid;place-items:center;width:29px;height:29px;border:1px solid #ffffff30;border-radius:9px;color:#E0A51A}
.continue-button{height:34px;padding:0 12px;font-size:8px}
.continue-button:hover{background:#B9603F}
.study-card-heading{display:flex;justify-content:space-between;align-items:center;gap:8px}
.study-card-heading h3{margin-bottom:12px}
.local-only-pill{padding:5px 7px;border-radius:20px;background:#F8F5EF;color:#8b929e;font-size:6px;font-weight:700;letter-spacing:.6px;white-space:nowrap}
.subject-progress-list{display:grid;grid-template-columns:1fr 1fr;gap:10px 14px}
.subject-progress-item{min-width:0}
.subject-progress-top{display:flex;justify-content:space-between;gap:5px;margin-bottom:5px;color:#687583;font-size:8px}
.subject-progress-top span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.subject-progress-top small{color:#a0a5ae;font-size:6px;white-space:nowrap}
.subject-progress-track{height:5px;overflow:hidden;border-radius:5px;background:#E8F2FA}
.subject-progress-track span{display:block;height:100%;border-radius:5px;background:linear-gradient(90deg,#B9603F,#E0A51A);transition:width .35s ease}
.saved-topics-list,.revision-list{display:flex;flex-direction:column;gap:7px;max-height:175px;overflow:auto}
.saved-topic-item,.revision-item{display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:center;gap:3px 7px;padding:8px 9px;border:1px solid #efede7;border-radius:8px;background:#fffefa}
.saved-topic-open,.revision-open{grid-column:1;grid-row:1;border:0;background:none;padding:0;color:#536171;text-align:left;font-size:8px;font-weight:700;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.saved-topic-item small,.revision-item small{grid-column:1;grid-row:2;color:#9ba1aa;font-size:7px}
.saved-topic-remove{grid-column:2;grid-row:1/3;width:23px;height:23px;border:0;border-radius:50%;background:#F8F5EF;color:#8d929b;font-size:15px}
.saved-topic-open:hover,.revision-open:hover{color:#B9603F}
.revision-item.is-due{border-color:#E5C985;background:#FBF1D7}
.revision-item.is-due small{color:#946c15}
.study-empty-copy{margin:0;padding:11px 2px;color:#9ba1aa;font-size:8px;line-height:1.6}
.reminder-optin{display:flex;align-items:flex-start;gap:8px;margin:10px 0 8px;color:#626d7d;font-size:8px;line-height:1.5;cursor:pointer}
.reminder-optin input{flex:0 0 auto;width:14px;height:14px;margin:0;accent-color:#B9603F}
.revision-card .reminder-explainer{margin:0 0 10px;font-size:7px}
.note-row{grid-template-columns:46px minmax(230px,1fr) 135px 34px 34px}
.save-note-button{width:30px;height:30px;border:1px solid #e6e2da;border-radius:50%;background:transparent;color:#A87508;font-size:16px;line-height:1;transition:all .2s}
.save-note-button:hover,.save-note-button[aria-pressed="true"]{border-color:#E0A51A;background:#FBF1D7;color:#A87508}
.reader-actions{display:flex;align-items:center;gap:8px;margin-top:16px}
.reader-action-button{height:34px;padding:0 12px;border:1px solid #e4e2dc;border-radius:7px;background:#fff;color:#667382;font-size:8px;font-weight:700}
.reader-action-button:hover,.reader-action-button[aria-pressed="true"]{border-color:#D7A394;background:#F6E8E1;color:#9D4D34}
.reader-reviewed-button{border-color:#243746;background:#243746;color:white}
.reader-reviewed-button:hover{border-color:#B9603F;background:#B9603F;color:white}
.ai-follow-ups{display:flex;flex-wrap:wrap;gap:6px;margin-top:10px}
.ai-follow-ups button{padding:6px 8px;border:1px solid #e7e2d9;border-radius:20px;background:#fffefa;color:#697684;font-size:7px;transition:all .2s}
.ai-follow-ups button:hover{border-color:#D7A394;background:#F6E8E1;color:#9D4D34}
@media(max-width:980px){.study-overview-grid{grid-template-columns:1fr 1.15fr}.continue-card{grid-column:1/-1}.study-personal-grid{grid-template-columns:1fr 1fr}.progress-card{grid-column:1/-1}}
@media(max-width:650px){.study-dashboard{padding:62px 0}.study-dashboard-heading{display:block;margin-bottom:21px}.study-dashboard-heading h2{font-size:36px;letter-spacing:-1.5px}.study-dashboard-heading>p{margin-top:12px;font-size:9px}.study-overview-grid,.study-personal-grid{grid-template-columns:1fr;gap:9px;margin-top:0}.study-personal-grid{margin-top:9px}.continue-card,.progress-card{grid-column:auto}.study-card{padding:16px}.study-card h3{font-size:18px}.exam-card h3{min-height:0}.subject-progress-list{grid-template-columns:1fr 1fr;gap:9px}.daily-plan-item{grid-template-columns:minmax(0,1fr) auto}.study-card>small{font-size:7px}.note-row{grid-template-columns:38px minmax(0,1fr) 28px 28px;gap:6px;padding-right:2px}.save-note-button{width:27px;height:27px;font-size:14px}.download-button{width:27px;height:27px;font-size:11px}.reader-actions{flex-wrap:wrap}.reader-action-button{font-size:7px;padding:0 9px}}

/* Animated topic preview */
.hero-visual{overflow:visible}
.study-window{position:relative;z-index:2;width:min(100%,420px);padding:15px 17px 10px;border:1px solid #ffffff;border-radius:16px;background:#fffefa;box-shadow:0 28px 55px #24374620,0 3px 10px #2437460a;transform:rotate(-1.2deg);animation:study-float 7s ease-in-out infinite}
.study-window-top{display:flex;align-items:center;gap:9px;padding:0 2px 12px;border-bottom:1px solid #ecebe5}
.window-logo,.reader-logo{display:grid;place-items:center;flex:0 0 auto;width:35px;height:35px;overflow:hidden;border:1px solid #ecebe5;border-radius:8px;background:white;padding:1px}
.window-logo img,.reader-logo img{width:100%;height:100%;object-fit:contain}
.window-brand,.reader-brand{display:flex;flex-direction:column;gap:3px;min-width:0}
.window-brand strong,.reader-brand strong{font-size:8px;letter-spacing:.8px;color:#243746}
.window-brand small,.reader-brand small{font-size:7px;letter-spacing:1px;color:#9299a4}
.sample-pill,.reader-sample-badge{margin-left:auto;padding:6px 8px;border-radius:20px;background:#FBF1D7;color:#946c15;font-size:6px;font-weight:700;letter-spacing:1px;white-space:nowrap}
.subject-tabs{display:flex;gap:5px;padding:12px 0 10px;border-bottom:1px solid #ecebe5}
.subject-tab{display:flex;align-items:center;justify-content:center;gap:6px;flex:1;min-width:0;padding:8px 5px;border:1px solid transparent;border-radius:7px;background:transparent;color:#777e8c;font-size:8px;font-weight:600;white-space:nowrap;transition:all .22s}
.subject-tab span{display:grid;place-items:center;width:19px;height:19px;border-radius:6px;background:#E8F2FA;color:#47677A;font-size:8px;font-weight:700}
.subject-tab:hover{background:#F8F5EF;color:#243746}
.subject-tab.is-active{background:#F6E8E1;color:#9D4D34}
.subject-tab.is-active span{background:#B9603F;color:#fff}
.topic-preview{padding:15px 2px 1px}
.topic-kicker{display:block;font-size:7px;font-weight:700;letter-spacing:1.2px;color:#9299a4}
.topic-kicker i,.reader-page-kicker i{font-style:normal;color:#E0A51A;margin:0 3px}
.topic-heading h2{font-size:23px;line-height:1.1;letter-spacing:-.7px;color:#243746;margin:7px 0 5px;font-weight:600}
.topic-heading p{margin:0;color:#858c98;font-size:9px;line-height:1.55;max-width:330px}
.topic-diagram-wrap{height:137px;margin:12px 0 10px;display:grid;place-items:center;overflow:hidden;border:1px solid #edf0ef;border-radius:10px;background:linear-gradient(135deg,#F8F5EF 0%,#E8F2FA 100%);position:relative}
.topic-diagram-wrap:before{content:'';position:absolute;inset:0;background-image:radial-gradient(#24374612 .7px,transparent .7px);background-size:12px 12px;opacity:.55;pointer-events:none}
.topic-diagram{position:relative;z-index:1;width:100%;height:100%;display:grid;place-items:center;animation:topic-pop .45s cubic-bezier(.2,.75,.25,1) both}
.topic-diagram[hidden]{display:none}
.topic-diagram svg{width:100%;height:100px;overflow:visible}
.bond-line{stroke:#AFC5D2;stroke-width:4;stroke-linecap:round;stroke-dasharray:50;animation:draw-bond 1.1s ease-out both}
.atom-main{fill:#B9603F;stroke:#fff;stroke-width:4}.atom-side{fill:#E0A51A;stroke:#fff;stroke-width:3}.atom-label{fill:#243746;font-size:13px;font-family:var(--font-sans);font-weight:700}.atom-label-light{fill:white}
.diagram-caption{position:absolute;bottom:8px;left:0;right:0;display:flex;justify-content:center;align-items:center;gap:7px}.diagram-caption strong{font-size:10px;color:#243746}.diagram-caption span{font-size:6px;letter-spacing:1px;font-weight:700;color:#8a91a0}
.topic-diagram[data-topic-diagram="mathematics"]{grid-template-columns:1fr 1fr;padding:6px 16px 2px;gap:2px}
.equation-card{display:flex;flex-direction:column;gap:9px;align-items:flex-start}.equation-card span{font-size:6px;letter-spacing:1px;font-weight:700;color:#9299a4}.equation-card strong{font-family:var(--font-serif);font-size:17px;color:#243746;font-weight:500;white-space:nowrap}.equation-card small{font-size:7px;color:#858c98}.equation-card i{color:#B9603F;font-style:normal}
.graph-axis{stroke:#AFC5D2;stroke-width:1.5;stroke-linecap:round}.graph-curve{fill:none;stroke:#B9603F;stroke-width:3;stroke-linecap:round;stroke-dasharray:360;animation:draw-curve 1.2s ease-out both}.graph-point{fill:#E0A51A;stroke:#fff;stroke-width:2}.graph-label{fill:#8A91A0;font-size:8px;font-family:var(--font-sans);font-weight:700}
.wave-axis{stroke:#AFC5D2;stroke-width:1}.wave-path{fill:none;stroke:#B9603F;stroke-width:3;stroke-linecap:round;stroke-dasharray:500;animation:draw-curve 1.4s ease-out both}.wave-two{stroke:#E0A51A;stroke-width:1.6;stroke-dasharray:5 5;animation-delay:.15s}.wave-dot{fill:#243746;stroke:#fff;stroke-width:2}
.topic-bottom-row{display:flex;align-items:center;justify-content:space-between;gap:10px;border-top:1px solid #ecebe5;padding-top:10px}.topic-bottom-row>span{display:flex;flex-direction:column;gap:3px;min-width:0}.topic-bottom-row small{font-size:6px;letter-spacing:.9px;color:#9a9eaa;font-weight:700}.topic-bottom-row strong{max-width:240px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#566271;font-size:8px;font-weight:600}.topic-open-button{display:flex;align-items:center;gap:6px;border:0;background:#243746;color:white;border-radius:6px;padding:8px 10px;font-size:7px;font-weight:700;white-space:nowrap;transition:all .2s}.topic-open-button:hover{background:#B9603F;transform:translateY(-1px)}.topic-open-button span{font-size:12px;font-weight:400}
.study-window-footer{display:flex;align-items:center;gap:7px;padding:10px 2px 0;color:#9299a4;font-size:6px;font-weight:700;letter-spacing:1px}
.study-float{position:absolute;z-index:4;display:flex;align-items:center;gap:8px;padding:9px 11px;border:1px solid white;border-radius:9px;background:#fffefa;box-shadow:0 10px 25px #2437461b;animation:float-note 5s ease-in-out infinite}
.study-float>span:first-child{width:23px;height:23px;display:grid;place-items:center;border-radius:7px;background:#FBF1D7;color:#A87508;font-size:12px}
.study-float strong,.study-float small{display:block;white-space:nowrap}.study-float strong{font-size:7px;letter-spacing:.45px;color:#243746}.study-float small{font-size:7px;color:#9299a4;margin-top:3px}.float-top{right:-26px;top:47px}.float-bottom{left:-25px;bottom:49px;animation-delay:-2.3s}.study-float .float-page{background:#F6E8E1;color:#B9603F;font-family:var(--font-serif);font-size:10px;font-weight:700}
.topic-preview.is-animating .topic-heading{animation:topic-pop .3s ease-out both}
.note-preview-backdrop{padding:20px}
.note-reader-card{position:relative;width:min(100%,880px);max-height:min(92vh,850px);overflow:auto;background:#fffefa;border-radius:16px;padding:22px 27px 24px;box-shadow:0 28px 80px #172b3959;animation:modal-in .3s cubic-bezier(.2,.75,.25,1) both}
.reader-topbar{display:flex;align-items:center;gap:10px;padding:0 25px 15px 0;border-bottom:1px solid #e9e8e2}
.reader-logo{width:38px;height:38px}.reader-brand strong{font-size:9px;letter-spacing:1px}.reader-brand small{font-size:7px}.reader-sample-badge{font-size:7px}
.reader-progress{height:3px;background:#E8F2FA;margin:0 0 22px}.reader-progress span{display:block;width:33%;height:100%;background:#B9603F;border-radius:0 3px 3px 0}
.reader-layout{display:grid;grid-template-columns:160px minmax(0,1fr);gap:26px;min-height:440px}
.reader-sidebar{padding:9px 18px 0 0;border-right:1px solid #e9e8e2}
.reader-sidebar-kicker{display:block;margin-bottom:13px;color:#9299a4;font-size:7px;font-weight:700;letter-spacing:1.1px}
.reader-sidebar>strong{display:block;margin-bottom:18px;color:#243746;font-size:9px;letter-spacing:.8px}
.reader-outline-step{display:flex;align-items:center;gap:8px;padding:9px 0;color:#9299a4;font-size:8px;border-top:1px solid #f0efea}
.reader-outline-step i{font-style:normal;color:#b1b5bd;font-family:var(--font-serif);font-size:12px}
.reader-outline-step.is-current{color:#243746;font-weight:700}.reader-outline-step.is-current i{color:#B9603F}
.reader-sidebar-note{margin-top:35px;border-radius:8px;background:#E8F2FA;padding:11px;color:#75808d;font-size:8px;line-height:1.6}
.reader-page{padding:8px 9px 0 0;max-width:590px}
.reader-page-kicker{font-size:7px;font-weight:700;letter-spacing:1.2px;color:#9299a4}
.reader-page h2{margin:10px 0 8px;color:#243746;font-size:32px;letter-spacing:-1.3px;font-weight:600}
.reader-intro{max-width:540px;margin:0 0 17px;color:#727b89;font-size:10px;line-height:1.75}
.reader-diagram{display:grid;place-items:center;min-height:155px;margin-bottom:17px;padding:10px;border:1px solid #e8edf0;border-radius:11px;background:linear-gradient(135deg,#F8F5EF,#E8F2FA);overflow:hidden}
.reader-topic-diagram{width:min(100%,390px);height:138px;border:0;border-radius:0;background:transparent}
.reader-topic-diagram:before{display:none}.reader-topic-diagram svg{height:122px}
.reader-generic-diagram{width:100%;min-height:128px;display:flex;flex-direction:column;justify-content:center;align-items:center;gap:10px;border-radius:8px;background:radial-gradient(circle at 50% 10%,#F6E8E1,transparent 55%)}
.reader-generic-diagram span{color:#A87508;font-size:7px;font-weight:700;letter-spacing:1.2px}.reader-generic-diagram strong{font-family:var(--font-serif);font-size:22px;font-weight:500;color:#243746;text-align:center}
.reader-core{border-left:2px solid #B9603F;padding:2px 0 2px 11px;margin:0 0 15px}.reader-core span,.reader-revision span{display:block;color:#A87508;font-size:7px;font-weight:700;letter-spacing:1.1px;margin-bottom:5px}.reader-core p{margin:0;color:#536171;font-size:9px;line-height:1.7}
.reader-revision{padding:11px 13px;border-radius:8px;background:#F8F5EF}.reader-revision strong{display:block;color:#536171;font-size:9px;line-height:1.7;font-weight:500}
.reader-page-footer{display:flex;justify-content:space-between;gap:10px;margin-top:20px;padding-top:10px;border-top:1px solid #e9e8e2;color:#9a9eaa;font-size:6px;font-weight:700;letter-spacing:.8px}
@keyframes study-float{0%,100%{transform:rotate(-1.2deg) translateY(0)}50%{transform:rotate(-.2deg) translateY(-7px)}}
@keyframes topic-pop{from{opacity:0;transform:translateY(8px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
@keyframes draw-bond{from{stroke-dashoffset:50;opacity:.3}to{stroke-dashoffset:0;opacity:1}}
@keyframes draw-curve{from{stroke-dashoffset:360;opacity:.25}to{stroke-dashoffset:0;opacity:1}}
@media(max-width:900px){.study-window{width:min(100%,390px)}.float-top{right:-19px}.float-bottom{left:-18px}}
@media(max-width:650px){.hero-visual{height:340px;transform:scale(.84);transform-origin:top center;margin:-4px -28px -10px}.study-window{width:408px;max-width:100%;padding:13px 14px 9px;transform:none}.study-window-top{padding-bottom:10px}.window-logo{width:31px;height:31px}.window-brand strong{font-size:7px}.window-brand small{font-size:6px}.sample-pill{font-size:5px;padding:5px 7px}.subject-tabs{padding:9px 0 8px;gap:3px}.subject-tab{font-size:7px;padding:6px 3px;gap:4px}.subject-tab span{width:17px;height:17px;font-size:7px}.topic-preview{padding-top:11px}.topic-heading h2{font-size:20px;margin:6px 0 4px}.topic-heading p{font-size:8px}.topic-diagram-wrap{height:120px;margin:9px 0 8px}.topic-diagram svg{height:88px}.topic-diagram[data-topic-diagram="mathematics"]{padding:3px 9px}.equation-card{gap:6px}.equation-card strong{font-size:14px}.equation-card small{font-size:6px}.topic-bottom-row{padding-top:8px}.topic-bottom-row strong{font-size:7px;max-width:170px}.topic-open-button{padding:7px 8px;font-size:6px}.study-window-footer{padding-top:8px;font-size:5px}.study-float{padding:7px 8px;gap:6px}.study-float>span:first-child{width:19px;height:19px;font-size:10px}.study-float strong{font-size:6px}.study-float small{font-size:6px}.float-top{top:12px;right:-5px}.float-bottom{bottom:3px;left:-2px}.note-reader-card{padding:17px 15px 17px;border-radius:12px}.reader-topbar{padding-right:24px;padding-bottom:11px}.reader-logo{width:32px;height:32px}.reader-brand strong{font-size:7px}.reader-brand small{font-size:6px}.reader-sample-badge{font-size:5px;padding:5px 6px}.reader-progress{margin-bottom:13px}.reader-layout{grid-template-columns:1fr;min-height:0}.reader-sidebar{display:none}.reader-page{padding:3px 0 0}.reader-page h2{font-size:26px}.reader-intro{font-size:9px}.reader-diagram{min-height:135px}.reader-topic-diagram{height:120px}.reader-topic-diagram svg{height:110px}.reader-page-footer{font-size:5px}}