:root{--ink:#14251f;--muted:#6e7d76;--forest:#12372a;--green:#1f684a;--lime:#c9f36a;--orange:#ed8b45;--paper:#f6f8f4;--line:#e1e8e0;--white:#fff;--danger:#b42318;--shadow:0 18px 48px rgba(22,57,40,.08);font-synthesis:none}
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small{font-size:12px;color:#c4d9cb}.header-pill{display:flex;align-items:center;gap:9px;border:1px solid rgba(255,255,255,.22);padding:7px 12px;border-radius:999px;font-size:12px;color:#ecf8ef}.status-dot{height:7px;width:7px;border-radius:50%;background:var(--lime);box-shadow:0 0 0 4px rgba(201,243,106,.12)}.home-main{padding-top:40px;padding-bottom:64px}.hero{position:relative;overflow:hidden;min-height:345px;background:var(--forest);border-radius:28px;color:#fff;display:grid;grid-template-columns:1.12fr .88fr;padding:42px 48px;isolation:isolate}.hero:after{content:"";position:absolute;width:420px;height:420px;border-radius:50%;background:linear-gradient(135deg,rgba(201,243,106,.1),rgba(201,243,106,0));right:-150px;top:-220px;z-index:-1}.hero-copy{position:relative;z-index:2;align-self:center}.eyebrow{display:flex;align-items:center;gap:10px;color:var(--lime);font:500 11px Kanit,sans-serif;letter-spacing:1.7px}.eyebrow-line{width:27px;height:2px;background:var(--lime)}h1,h2,h3,p{margin-top:0}h1{font:600 clamp(32px,4vw,48px)/1.2 Kanit,sans-serif;letter-spacing:-.7px;margin:18px 0 14px}h1 span{color:var(--lime)}.hero-desc{max-width:490px;color:#d1e0d6;line-height:1.85;font-size:15px;margin-bottom:21px}.hero-note{display:flex;align-items:center;gap:10px;font-size:13px;color:#eff9f0}.note-icon{width:25px;height:25px;display:grid;place-items:center;border-radius:8px;background:rgba(201,243,106,.15);color:var(--lime);font-size:17px}.hero-art{position:relative;min-height:255px}.art-grid{position:absolute;inset:0;opacity:.28;background-image:linear-gradient(rgba(255,255,255,.14) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.14) 1px,transparent 1px);background-size:24px 24px;mask-image:linear-gradient(90deg,transparent,#000 25%,#000)}.art-orbit{position:absolute;border:1px solid rgba(201,243,106,.27);border-radius:50%;transform:rotate(-22deg)}.orbit-one{width:300px;height:165px;right:4px;top:49px}.orbit-two{width:250px;height:125px;right:20px;top:67px;transform:rotate(30deg)}.art-card{position:absolute;border-radius:17px;box-shadow:0 25px 55px rgba(0,0,0,.25)}.card-back{width:183px;height:217px;right:29px;top:7px;background:#e7eee1;color:var(--forest);padding:17px;transform:rotate(9deg)}.art-mini{font:600 9px Kanit,sans-serif;letter-spacing:1px}.art-scribble{height:85px;margin:15px 0 12px;background:linear-gradient(140deg,transparent 41%,#9bb777 42% 45%,transparent 46%),linear-gradient(40deg,transparent 40%,#d1e0b8 41% 47%,transparent 48%);border:1px dashed #9aaf8b;border-radius:8px}.art-lines{display:flex;flex-direction:column;gap:6px}.art-lines i{height:4px;background:#c8d5c6;border-radius:8px}.art-lines i:nth-child(1){width:88%}.art-lines i:nth-child(2){width:62%}.art-lines i:nth-child(3){width:74%}.card-front{width:190px;height:222px;right:115px;top:34px;background:#fff;color:var(--forest);padding:15px;transform:rotate(-5deg)}.art-card-top{display:flex;justify-content:space-between;align-items:center;font:600 9px Kanit,sans-serif;letter-spacing:1px}.art-star{color:#e48d49;font-size:18px}.art-cube{position:relative;height:93px;width:102px;margin:9px auto 10px}.art-cube:before,.art-cube:after,.art-cube i,.art-cube b,.art-cube em{content:"";position:absolute;display:block}.art-cube:before{width:50px;height:50px;left:27px;top:3px;transform:rotate(30deg) skewY(30deg) scaleY(.866);background:#c8f06d;border:2px solid #406745}.art-cube:after{width:48px;height:43px;left:4px;top:39px;transform:skewY(30deg);background:#eaa26e;border:2px solid #406745}.art-cube i{width:48px;height:43px;right:1px;top:39px;transform:skewY(-30deg);background:#8acba2;border:2px solid #406745}.art-cube b{width:0;height:0;border-left:26px solid transparent;border-right:26px solid 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40px;display:grid;place-items:center;border-radius:12px;background:#eff5e9;color:var(--green);font-size:23px}.meta-item div{min-width:0}.meta-item small{display:block;color:var(--muted);font-size:12px;margin-bottom:2px}.meta-item strong{display:block;font-size:14px;font-weight:700}.assignments-section{margin-bottom:43px}.section-heading{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}.section-eyebrow{color:#65826e;margin-bottom:8px}.section-heading h2{font:600 clamp(23px,3vw,31px)/1.3 Kanit,sans-serif;margin-bottom:5px;letter-spacing:-.3px}.section-heading p{color:var(--muted);font-size:14px;margin-bottom:0}.completion-mark{width:66px;height:66px;border-radius:18px;background:#e9f2df;display:flex;flex-direction:column;align-items:center;justify-content:center;flex:0 0 66px;color:var(--forest)}.completion-mark span{font:700 22px Kanit,sans-serif;line-height:1}.completion-mark small{font-size:10px;margin-top:3px}.lesson-groups{display:grid;gap:18px}.unit-block{background:#fff;border:1px solid var(--line);border-radius:19px;overflow:hidden}.unit-header{display:flex;align-items:center;gap:13px;padding:17px 20px;background:#fbfcf9;border-bottom:1px solid #edf1eb}.unit-num{width:36px;height:36px;display:grid;place-items:center;border-radius:11px;background:var(--forest);color:var(--lime);font:600 12px Kanit,sans-serif;flex:0 0 36px}.unit-header h3{font:500 16px Kanit,sans-serif;margin:0 0 2px}.unit-header p{font-size:12px;color:var(--muted);margin:0}.unit-lessons{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 22px;padding:5px 20px}.lesson-link{display:grid;grid-template-columns:44px minmax(0,1fr) 34px;gap:12px;align-items:center;padding:17px 0;border-bottom:1px solid #edf1eb;min-width:0;transition:transform .15s ease,color .15s ease}.lesson-link:nth-last-child(-n+2){border-bottom:0}.lesson-number{width:43px;height:43px;border:1px solid #dce7d8;border-radius:13px;display:grid;place-items:center;background:#f4f8f0;color:var(--green);font:600 15px Kanit,sans-serif}.lesson-info{min-width:0}.lesson-info strong{font-size:14px;line-height:1.45;display:block;overflow-wrap:anywhere}.lesson-info small{display:block;font-size:11px;color:#849289;margin-top:3px}.lesson-arrow{width:32px;height:32px;display:grid;place-items:center;border:1px solid var(--line);border-radius:10px;color:#587461;font-size:19px;transition:all .15s ease}.lesson-link:hover .lesson-arrow,.lesson-link:focus-visible .lesson-arrow{background:var(--lime);border-color:var(--lime);color:var(--forest);transform:translateX(2px)}.lesson-link:focus-visible,.primary-button:focus-visible,.secondary-button:focus-visible{outline:3px solid #e5ad68;outline-offset:3px}.privacy-strip{display:flex;align-items:flex-start;gap:15px;padding:20px 23px;background:#eaf3e5;border:1px solid #dcead3;border-radius:17px}.privacy-icon{display:grid;place-items:center;width:31px;height:31px;border-radius:50%;background:var(--green);color:#fff;flex:0 0 31px;font-weight:700}.privacy-strip strong{font:500 15px Kanit,sans-serif}.privacy-strip p{font-size:13px;color:#566a5d;margin:4px 0 0;line-height:1.7}.site-footer{background:#102f24;color:#d7e7db}.footer-inner{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:20px 0;font-size:11px}.loading-state{padding:30px;text-align:center;color:var(--muted)}
/* Submission page */
.submission-main{padding-top:26px;padding-bottom:60px}.breadcrumb{display:flex;gap:9px;align-items:center;color:#7a8b80;font-size:12px;margin:0 0 22px}.breadcrumb a{color:#2f6e4b}.breadcrumb span:last-child{color:#52655a}.submission-head{background:var(--forest);color:#fff;border-radius:23px;padding:27px 32px;display:flex;align-items:center;gap:20px;justify-content:space-between;position:relative;overflow:hidden}.submission-head:after{content:"";position:absolute;right:-75px;top:-105px;width:250px;height:250px;border:1px solid rgba(201,243,106,.23);border-radius:50%;box-shadow:0 0 0 22px rgba(201,243,106,.04),0 0 0 48px rgba(201,243,106,.025)}.submission-heading{position:relative;z-index:1}.chapter-label{font:500 11px Kanit,sans-serif;letter-spacing:1.5px;color:var(--lime);margin-bottom:5px}.submission-head h1{font:600 clamp(23px,3vw,31px)/1.35 Kanit,sans-serif;margin:0 0 7px}.submission-head p{color:#d2e2d7;font-size:13px;margin:0}.chapter-badge{position:relative;z-index:1;width:73px;height:73px;flex:0 0 73px;border:1px solid rgba(201,243,106,.6);border-radius:21px;display:flex;flex-direction:column;align-items:center;justify-content:center;color:var(--lime);background:rgba(255,255,255,.04)}.chapter-badge strong{font:700 27px Kanit,sans-serif;line-height:1}.chapter-badge small{font:500 9px Kanit,sans-serif;letter-spacing:1px;margin-top:4px}.submission-layout{display:grid;grid-template-columns:minmax(0,1fr) 285px;gap:22px;align-items:start;margin-top:23px}.form-card,.side-card{border:1px solid var(--line);background:#fff;border-radius:20px;box-shadow:0 8px 25px rgba(23,54,39,.03)}.form-card{padding:27px}.form-section-title{display:flex;align-items:center;gap:11px;border-bottom:1px solid #edf1eb;padding-bottom:15px;margin-bottom:21px}.section-step{width:30px;height:30px;display:grid;place-items:center;border-radius:9px;background:#eaf3e4;color:var(--green);font:600 13px Kanit,sans-serif}.form-section-title h2{font:500 17px Kanit,sans-serif;margin:0 0 2px}.form-section-title p{font-size:12px;color:var(--muted);margin:0}.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:17px}.field{display:flex;flex-direction:column;gap:6px;min-width:0}.field.full{grid-column:1/-1}.field label,.field-label{font-size:13px;font-weight:700;color:#31473a}.required{color:#cf6638}.field input:not([type=file]),.field select{width:100%;min-width:0;border:1px solid #dce5db;border-radius:11px;padding:11px 12px;background:#fcfdfb;color:var(--ink);outline:none;transition:border-color .15s,box-shadow .15s}.field input:focus,.field select:focus{border-color:#6e9b76;box-shadow:0 0 0 3px rgba(56,120,77,.11)}.field input::placeholder{color:#a1ada4}.field-hint{font-size:11px;color:#85938a;line-height:1.5}.upload-section{margin-top:31px}.upload-zone{position:relative;border:1.5px dashed #b9cdb8;background:#f9fbf7;border-radius:15px;padding:25px 18px;text-align:center;transition:background .15s,border-color .15s}.upload-zone.dragover{border-color:var(--green);background:#eff8e9}.upload-icon{width:47px;height:47px;margin:0 auto 10px;display:grid;place-items:center;background:#e9f4e4;border-radius:14px;color:var(--green);font-size:24px}.upload-zone h3{font:500 15px Kanit,sans-serif;margin:0 0 4px}.upload-zone p{font-size:12px;color:#7b8b80;margin:0 0 13px}.file-input{position:absolute!important;width:1px!important;height:1px!important;opacity:0!important;overflow:hidden!important}.secondary-button{display:inline-flex;align-items:center;justify-content:center;border:1px solid #c9d8c6;background:#fff;border-radius:10px;padding:8px 14px;color:#24563b;cursor:pointer;font-size:13px;font-weight:700}.secondary-button:hover{background:#f2f8ed}.file-list{display:grid;gap:8px;margin-top:12px}.file-row{display:flex;align-items:center;gap:10px;padding:11px 12px;background:#f5f8f3;border:1px solid #e5ede1;border-radius:11px;text-align:left}.file-symbol{width:35px;height:35px;flex:0 0 35px;display:grid;place-items:center;background:#e3eddb;color:#2f6945;border-radius:9px;font:600 10px Kanit,sans-serif;text-transform:uppercase}.file-meta{flex:1;min-width:0}.file-meta strong{display:block;font-size:12px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta small{display:block;color:#849087;font-size:11px}.remove-file{border:0;background:transparent;color:#9c5a4b;cursor:pointer;font-size:18px;padding:4px 8px;border-radius:7px}.remove-file:hover{background:#f8e7e2}.upload-rules{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 12px;margin-top:13px}.rule{display:flex;gap:7px;color:#6d7c71;font-size:11px;align-items:flex-start}.rule:before{content:"✓";color:#3b8556;font-weight:700}.security-check{border-top:1px solid #edf1eb;margin-top:24px;padding-top:19px}.security-check .field-hint{margin-top:7px}.turnstile-holder{min-height:65px;margin-top:10px;display:flex;align-items:center}.turnstile-message{font-size:12px;color:#92612e}.form-actions{display:flex;align-items:center;justify-content:space-between;gap:15px;padding-top:23px;margin-top:22px;border-top:1px solid #edf1eb}.form-disclaimer{font-size:11px;color:#859087;max-width:280px;line-height:1.6}.primary-button{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:12px 20px;border:0;border-radius:11px;background:var(--green);color:#fff;font-weight:700;cursor:pointer;min-height:46px;transition:transform .15s,background .15s;box-shadow:0 7px 16px rgba(31,104,74,.16)}.primary-button:hover{background:#18583e;transform:translateY(-1px)}.primary-button:disabled{opacity:.55;cursor:not-allowed;transform:none}.button-arrow{font-size:18px}.message-box{display:none;margin-top:17px;padding:13px 15px;border-radius:11px;font-size:13px}.message-box.show{display:block}.message-box.error{background:#fff1ed;border:1px solid #f1c8bc;color:#9d392c}.message-box.success{background:#edf8e8;border:1px solid #cfe5c5;color:#255d38}.side-column{display:grid;gap:16px}.side-card{padding:20px}.side-card h3{font:500 15px Kanit,sans-serif;margin:0 0 13px}.side-card p{font-size:12px;color:#748278;line-height:1.7;margin:0}.check-list{list-style:none;margin:0;padding:0;display:grid;gap:12px}.check-list li{display:grid;grid-template-columns:23px minmax(0,1fr);gap:9px;align-items:start;font-size:12px;color:#516358;line-height:1.55}.check-icon{width:22px;height:22px;display:grid;place-items:center;border-radius:7px;background:#edf5e8;color:#36764c;font-size:12px}.filetype-cloud{display:flex;flex-wrap:wrap;gap:6px;margin-top:12px}.type-chip{font:500 10px Kanit,sans-serif;padding:5px 8px;border:1px solid #e0e9dc;background:#f7faf5;color:#54705d;border-radius:7px}.side-warning{background:#fff8ed;border-color:#f0e0be}.side-warning h3{color:#8b5e1d}.side-warning p{color:#886e47}.back-link{display:inline-flex;align-items:center;gap:6px;color:#3b704d;font-weight:700;font-size:13px;margin-top:20px}.back-link:hover{text-decoration:underline}.success-panel{display:none;text-align:center;padding:35px 25px}.success-panel.show{display:block}.success-symbol{width:64px;height:64px;display:grid;place-items:center;border-radius:50%;background:#e5f5db;color:#267044;font-size:31px;margin:0 auto 15px}.success-panel h2{font:600 24px Kanit,sans-serif;margin:0 0 8px}.success-panel p{color:#637468;font-size:14px;line-height:1.8}.receipt{display:inline-flex;flex-direction:column;gap:3px;margin:8px 0 22px;padding:12px 20px;border:1px solid #dcebd6;background:#f6fbf2;border-radius:12px}.receipt small{font-size:10px;color:#7a8c7d}.receipt strong{font:600 18px Kanit,sans-serif;color:#245a38;letter-spacing:.8px}.success-panel .primary-button{margin-inline:auto}.honeypot{position:absolute!important;left:-10000px!important;width:1px!important;height:1px!important;overflow:hidden!important}.site-footer{margin-top:0}
@media(max-width:850px){.hero{padding:33px 32px;grid-template-columns:1.1fr .9fr}.hero-art{transform:scale(.9);transform-origin:center right;margin-right:-18px}.meta-item{padding:17px 16px}.meta-item strong{font-size:13px}.submission-layout{grid-template-columns:minmax(0,1fr) 235px;gap:15px}.form-card{padding:22px}.side-card{padding:17px}}
@media(max-width:680px){.container,.header-inner{width:min(100% - 28px,540px)}.header-inner{min-height:68px}.brand-mark{width:39px;height:39px}.header-pill{font-size:10px;padding:6px 9px}.home-main{padding-top:20px;padding-bottom:42px}.hero{display:block;min-height:auto;padding:28px 23px 235px;border-radius:22px}.hero-desc{font-size:14px}.hero-art{position:absolute;height:230px;bottom:0;right:4px;width:100%;transform:scale(.78);transform-origin:bottom right;margin:0}.card-front{right:126px;top:16px}.card-back{right:42px;top:-10px}.float-two{left:50px;bottom:20px}.course-meta{grid-template-columns:1fr;margin:15px 0 37px;border-radius:15px}.meta-item{padding:12px 15px}.meta-item+.meta-item{border-left:0;border-top:1px solid var(--line)}.meta-icon{height:35px;width:35px;flex-basis:35px}.meta-item strong{font-size:13px}.section-heading{align-items:center}.completion-mark{height:56px;width:56px;flex-basis:56px;border-radius:15px}.section-heading p{font-size:12px}.unit-header{padding:14px}.unit-lessons{grid-template-columns:1fr;padding:4px 15px}.lesson-link,.lesson-link:nth-last-child(-n+2){border-bottom:1px solid #edf1eb;padding:13px 0}.lesson-link:last-child{border-bottom:0}.lesson-number{height:39px;width:39px}.lesson-link{grid-template-columns:40px minmax(0,1fr) 31px;gap:9px}.lesson-info strong{font-size:13px}.privacy-strip{padding:17px;gap:11px}.privacy-strip p{font-size:12px}.footer-inner{align-items:flex-start;flex-direction:column;gap:5px}.submission-main{padding-top:16px;padding-bottom:40px}.breadcrumb{margin-bottom:15px}.submission-head{padding:22px;border-radius:18px}.chapter-badge{width:60px;height:60px;flex-basis:60px;border-radius:16px}.chapter-badge strong{font-size:23px}.submission-head p{font-size:12px}.submission-layout{grid-template-columns:1fr;margin-top:15px}.form-card{padding:19px 16px;border-radius:17px}.side-column{grid-template-columns:1fr}.form-grid{gap:14px}.form-section-title h2{font-size:16px}.upload-zone{padding:22px 12px}.upload-rules{grid-template-columns:1fr}.form-actions{align-items:stretch;flex-direction:column-reverse}.form-disclaimer{max-width:none}.primary-button{width:100%}}
@media(max-width:390px){.header-pill{max-width:120px;line-height:1.3}.hero{padding-inline:19px}.submission-head{padding:18px}.chapter-badge{width:53px;height:53px;flex-basis:53px}.form-grid{grid-template-columns:1fr}.field.full{grid-column:auto}.section-heading h2{font-size:22px}}