:root{font-family:Inter,"Segoe UI",Arial,sans-serif;color:#18323d;background:#f4f6f8;font-synthesis:none;--teal:#087d79;--line:#e3e9ec;--muted:#74828b}*{box-sizing:border-box}body{margin:0}button,input,select{font:inherit}button{cursor:pointer;background:#fff;border:1px solid var(--line);color:inherit;border-radius:7px;padding:9px 12px;font-size:14px;min-height:38px;transition:background .15s,border-color .15s}button:hover{background:#f0f6f5;border-color:#a8c8c5}button:disabled{opacity:.36;cursor:default}button:focus-visible,input:focus-visible,select:focus-visible,summary:focus-visible,canvas:focus-visible{outline:3px solid #1bafa1;outline-offset:3px}.primary{background:var(--teal);color:#fff;border-color:var(--teal)}.primary:hover{background:#07645f;color:#fff}.topbar{min-height:83px;display:flex;align-items:center;justify-content:space-between;padding:16px 26px;background:#fff;border-bottom:1px solid var(--line);gap:20px}.brand{display:flex;gap:12px;align-items:center}.brand svg{width:44px;height:44px;fill:none;stroke:var(--teal);stroke-width:1.5}.brand h1{font-size:24px;letter-spacing:-.9px;margin:0;font-weight:650}.brand span{font-size:12px;color:var(--muted)}.header-actions{display:flex;align-items:center;gap:8px}.header-actions #saveStatus{font-size:12px;color:var(--muted);margin-right:16px;max-width:150px}.divider{height:25px;width:1px;background:var(--line);margin:0 8px}.studio{display:grid;grid-template-columns:211px minmax(300px,1fr) 235px;min-height:690px;height:calc(100dvh - 125px);max-height:1400px}.panel{background:#fff;padding:24px 18px;overflow:auto}.tools-panel{border-right:1px solid var(--line)}.settings-panel{border-left:1px solid var(--line)}.panel-title{font-size:11px;font-weight:700;letter-spacing:1.6px;margin-bottom:17px;display:flex;justify-content:space-between;align-items:center;color:#607680}.panel-title>span{color:#a2b0b6;letter-spacing:0}.tool-list{display:grid;gap:5px}.tool-list button{border:1px solid transparent;background:transparent;display:flex;gap:11px;align-items:center;text-align:left;padding:9px 8px;font-size:14px}.tool-list i{font-style:normal;font-family:Arial;font-size:24px;width:24px;text-align:center;line-height:22px}.tool-list kbd{margin-left:auto;color:#94a1a6;font-size:10px}.tool-list .active{background:#e4f3ef;color:#006861;border-color:#d3e9e3}.tool-options{border-block:1px solid var(--line);padding:17px 0;margin:19px 0}.check-row{display:flex;align-items:center;gap:9px;font-size:14px;margin:10px 0 18px}.check-row input{accent-color:var(--teal);width:16px;height:16px;margin:0}.field-label{font-size:14px;font-weight:500;display:flex;justify-content:space-between;align-items:center;gap:8px;margin:14px 0 10px}.field-label output,.field-label span{font-size:12px;color:var(--muted)}input[type=range]{width:100%;accent-color:var(--teal);height:16px;cursor:pointer}.stroke-preview{height:28px;display:flex;align-items:center;justify-content:center;margin-top:4px;overflow:hidden}.stroke-preview span{width:80%;height:3px;background:#111;border-radius:100px}.color-section .panel-title{margin-bottom:8px}#colorDot{width:16px;height:16px;border-radius:50%;background:#20b7a8}#colorWheel{display:block;width:154px;height:154px;margin:0 auto;touch-action:none;border-radius:50%;cursor:crosshair}.color-readout{display:flex;align-items:center;gap:10px;border:1px solid var(--line);border-radius:7px;padding:5px 8px;margin-top:8px}input[type=color]{width:25px;height:25px;padding:0;border:0;cursor:pointer;background:none}.color-readout input[type=text],#hexColor{width:110px;border:0;font-size:12px;letter-spacing:1px;color:#42606b}.swatches{display:flex;gap:7px;margin-top:12px}.swatches button{min-height:22px;width:22px;height:22px;border-radius:50%;padding:0;border:2px solid white;box-shadow:0 0 0 1px #e4e7e8}.workspace{min-width:0;display:flex;flex-direction:column;padding:17px 25px 10px;overflow:hidden;background:radial-gradient(#d7e0e4 .75px,transparent .75px) 0 0/14px 14px}.workspace-top{display:flex;align-items:center;justify-content:space-between;font-size:13px;min-height:38px;gap:5px}.workspace-top strong{font-weight:600}.muted{color:var(--muted)}.small-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--teal);margin-right:5px}.quiet{background:transparent;border-color:transparent;font-size:12px;padding:6px}.viewport{position:relative;flex:1;min-height:300px;overflow:hidden;display:flex;align-items:center;justify-content:center}#canvasHolder{width:600px;height:600px;flex:none;transform-origin:center;box-shadow:0 10px 35px #253b4b0a;background:white;border-radius:4px}#drawingCanvas{width:100%;height:100%;display:block;touch-action:none;cursor:crosshair;border-radius:4px}.canvas-note{position:absolute;bottom:13px;left:15px;right:15px;text-align:center;pointer-events:none;font-size:12px;color:#7b8e97}.workspace-bottom{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:57px}.workspace-bottom>span{font-size:12px;color:#75858d;max-width:230px}.zoom-control{display:flex;align-items:center;background:#fff;padding:3px;border-radius:9px;box-shadow:0 2px 8px #102b3508}.zoom-control button{border:0;padding:6px 9px;min-height:31px;font-size:12px}.zoom-control output{font-size:12px;min-width:44px;text-align:center}.zoom-control button[aria-pressed=true]{background:#dcefeb}.number-field{display:flex;gap:6px}.number-field input,select{border:1px solid var(--line);border-radius:7px;background:#f9fbfc;min-width:0;width:100%;padding:9px 12px;font-size:14px;color:#173a48}.number-field button{padding-inline:11px}.helper{font-size:12px;color:#809098;line-height:1.6;margin:8px 0 18px}.ring-list{display:grid;gap:6px;margin:22px 0}.ring-list button{display:flex;justify-content:space-between;align-items:center;border-color:transparent;background:#f6f8f9;padding:11px 12px;text-align:left}.ring-list button.active{background:#e5f3ef;border-color:#b5d8ce;color:#076a61}.ring-list .ring-meta{font-size:12px;opacity:.65}.ring-icon{font-size:18px;vertical-align:middle;margin-right:9px}.section-settings{border-top:1px solid var(--line);padding-top:21px}.section-presets{display:flex;flex-wrap:wrap;gap:5px;margin:10px 0}.section-presets button{min-height:31px;padding:5px 8px;font-size:12px;flex:1}.section-presets button.active{background:#163e47;color:#fff;border-color:#163e47}.edit-actions{display:grid;gap:7px;border-top:1px solid var(--line);padding-top:18px;margin-top:19px}.edit-actions button{font-size:12px}.danger{color:#ac514b}.help{margin-top:23px;font-size:12px;color:#6c8088;line-height:1.7}.help summary{cursor:pointer;color:#284e59;font-size:14px}footer{min-height:42px;display:flex;align-items:center;justify-content:space-between;gap:16px;font-size:11px;color:#8b99a1;padding:10px 25px;border-top:1px solid var(--line);background:#fff}#toast{position:fixed;bottom:64px;left:50%;transform:translateX(-50%);padding:12px 20px;background:#173942;color:#fff;border-radius:9px;font-size:14px;z-index:30;max-width:90vw;box-shadow:0 8px 35px #0002;opacity:0;pointer-events:none;transition:opacity .2s}#toast.visible{opacity:1}dialog{border:1px solid var(--line);border-radius:15px;padding:30px;width:420px;max-width:calc(100vw - 30px);color:#18323d;box-shadow:0 20px 100px #17394220}dialog::backdrop{background:#0b263955;backdrop-filter:blur(3px)}dialog h2{font-size:26px;letter-spacing:-.7px;margin:8px 0 10px}dialog p{font-size:14px;color:#6e808a;line-height:1.7}.eyebrow{font-size:10px;letter-spacing:1.6px;color:var(--teal);font-weight:700}.dialog-heading{margin-bottom:25px}.dialog-actions{display:flex;justify-content:flex-end;gap:8px;margin-top:26px}dialog .check-row{margin-top:23px}#busy{position:fixed;inset:0;background:#ffffffcc;z-index:40;display:flex;gap:12px;justify-content:center;align-items:center;font-size:16px}.spinner{width:22px;height:22px;border:2px solid #a3d5cc;border-top-color:var(--teal);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}[hidden]{display:none!important}.wide{width:100%;margin-bottom:12px}
@media(min-width:1600px){.studio{grid-template-columns:238px minmax(300px,1fr) 265px}.panel{padding:28px 24px}.tool-list button{padding-block:11px}}
@media(max-width:1100px){.topbar{padding:14px 17px}.brand span{display:none}.header-actions #saveStatus{display:none}.studio{grid-template-columns:185px minmax(240px,1fr) 207px}.panel{padding:19px 12px}.workspace{padding-inline:12px}.tool-list button{font-size:12px;gap:7px}.tool-list kbd{display:none}.workspace-bottom{flex-wrap:wrap;justify-content:center;gap:4px;padding:8px 0}.workspace-bottom>span{max-width:none}.canvas-note{font-size:11px}}
@media(max-width:760px){.topbar{align-items:flex-start;flex-wrap:wrap;gap:12px}.brand h1{font-size:22px}.brand svg{width:36px;height:36px}.header-actions{width:100%;gap:7px}.header-actions button{flex:1;padding-inline:8px}.divider{display:none}.studio{height:auto;max-height:none;min-height:0;grid-template-columns:1fr}.tools-panel{display:flex;flex-wrap:wrap;gap:13px;overflow:visible;padding:12px;border-bottom:1px solid var(--line)}.tools-panel>.panel-title{display:none}.tool-list{display:flex;overflow-x:auto;flex:none;width:100%;gap:5px;padding-bottom:4px}.tool-list button{flex-direction:column;gap:5px;min-width:72px;font-size:11px;text-align:center}.tool-list i{font-size:22px}.tool-options{border:0;padding:0;margin:0;flex:1;min-width:140px}.tool-options .check-row{margin:4px 0 8px}.field-label{margin-top:6px}.color-section{display:grid;grid-template-columns:75px 1fr;gap:6px 10px;flex:1;min-width:180px}.color-section .panel-title,.color-section .field-label,.color-section>input,.swatches{display:none}#colorWheel{width:75px;height:75px;grid-row:1/3}.color-readout{margin:10px 0;height:39px;max-width:145px}.workspace{height:min(110vw,650px);min-height:420px;padding:8px 10px}.canvas-note{display:none}.workspace-top{font-size:12px}.workspace-bottom>span{display:none}.workspace-bottom{min-height:42px}.settings-panel{border-top:1px solid var(--line);padding:20px;display:grid;grid-template-columns:1fr 1fr;gap:8px 20px;overflow:visible}.settings-panel>.panel-title{grid-column:1/-1}.settings-panel>.field-label{grid-column:1}.settings-panel>.number-field{grid-column:1}.settings-panel>.helper{grid-column:1}.ring-list{grid-column:2;grid-row:2/6;margin:0}.section-settings{grid-column:1/-1}.edit-actions{grid-column:1/-1;display:flex;flex-wrap:wrap;margin-top:0}.help{grid-column:1/-1;margin-top:7px}footer{flex-direction:column;text-align:center;gap:4px;font-size:10px;padding:12px}#toast{bottom:18px}}

.panel{min-width:0}@media(max-width:760px){.studio{grid-template-columns:minmax(0,1fr)}.settings-panel{grid-template-columns:minmax(0,1fr) minmax(0,1fr)}.number-field{min-width:0}.tool-list{min-width:0}}

@media(max-width:760px){.color-section{min-width:225px}.color-readout{min-width:0}.color-readout input[type=color]{flex-shrink:0}.color-readout #hexColor{min-width:0;flex:1}}

.viewport{touch-action:none;overscroll-behavior:contain}#canvasHolder{will-change:transform}.nav-hint{font-size:12px;text-align:right}@media(max-width:760px){.tool-list{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));overflow:visible}.tool-list button{min-width:0}.nav-hint{font-size:10px}}

.brand .designer-credit{display:block;font-size:12px;color:#627882;margin-top:3px}
.repeat-setting{padding:10px;background:#eaf5f2;border:1px solid #c9e2dc;border-radius:9px;margin-bottom:17px}
.switch-row{display:flex;gap:9px;align-items:center;font-size:13px;font-weight:650;line-height:1.4;cursor:pointer}
.switch-row input{appearance:none;width:34px;height:20px;flex:none;border-radius:20px;background:#a3adb4;position:relative;cursor:pointer;margin:0;transition:background .15s}
.switch-row input:checked{background:#087d79}.switch-row input:before{content:'';position:absolute;width:14px;height:14px;background:white;border-radius:50%;top:3px;left:3px;transition:transform .15s}.switch-row input:checked:before{transform:translateX(14px)}
.repeat-setting p{font-size:11px;line-height:1.6;color:#466b68;margin:9px 0 0}
.background-setting{border-top:1px solid var(--line);padding-top:7px}.background-readout{display:flex;gap:12px;align-items:center;border:1px solid var(--line);border-radius:7px;padding:7px 10px}.background-readout input{width:30px;height:28px}.background-readout output{font-size:12px;color:#48616c;letter-spacing:1px}.background-setting .helper{margin-bottom:4px}
.palette-bar{display:flex;align-items:center;justify-content:center;flex-wrap:wrap;gap:12px 20px;flex:none;border:1px solid #dee7e8;background:#ffffffed;border-radius:12px;padding:10px 14px;position:relative;z-index:2}
.palette-picker{position:relative;min-width:218px}.palette-label{display:block;font-size:9px;letter-spacing:1.3px;color:#627982;font-weight:700;margin-bottom:4px}
#paletteButton{width:100%;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:12px;min-height:30px;padding:4px 8px;border:0;background:#f1f6f6}#paletteButton:after{content:'⌄';font-size:16px;color:#567780}
.palette-preview{display:flex;gap:2px}.palette-preview i{display:block;width:12px;height:14px;border-radius:2px;box-shadow:inset 0 0 0 1px #00000010}
.palette-menu{position:absolute;bottom:calc(100% + 10px);left:0;width:290px;max-width:calc(100vw - 48px);max-height:340px;overflow:auto;padding:6px;background:#fff;border:1px solid #b5cfca;box-shadow:0 10px 40px #1739422b;border-radius:10px}
.palette-option{display:flex;justify-content:space-between;align-items:center;gap:14px;padding:11px 9px;font-size:13px;cursor:pointer;border-radius:6px}.palette-option[aria-selected=true]{background:#e5f3ef;color:#006861}.palette-option:focus{outline:2px solid #087d79;outline-offset:-2px;background:#edf7f4}.palette-option:hover{background:#f1f6f6}
.palette-swatches{display:flex;align-items:center;gap:7px;flex-wrap:wrap;justify-content:center}.palette-swatches button{padding:0;min-height:32px;width:32px;height:32px;border:3px solid white;border-radius:50%;box-shadow:0 0 0 1px #cbd6db}.palette-swatches button[aria-pressed=true]{box-shadow:0 0 0 2px #183e4b;transform:scale(1.08)}
#studentFields{padding:0;border:0;margin:0}#studentFields input{width:100%;border:1px solid #cfdbdf;background:#f9fbfc;border-radius:7px;padding:10px 12px;font-size:15px;color:#173a48}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip-path:inset(50%);white-space:nowrap;border:0}
@media(max-width:1100px){.palette-bar{gap:8px;padding:9px}.palette-picker{min-width:208px}.palette-swatches button{width:29px;height:29px;min-height:29px}}
@media(max-width:760px){.workspace{height:min(calc(110vw + 110px),760px);min-height:530px}.palette-bar{gap:10px;padding:10px}.palette-picker{min-width:220px}.palette-swatches button{width:34px;height:34px;min-height:34px}.palette-menu{max-height:320px}.background-setting{grid-column:1/-1}.repeat-setting{max-width:290px}.settings-panel>.check-row{grid-column:1/-1}.designer-credit{white-space:nowrap}}