:root{color-scheme:dark;--bg:#08151d;--pane:#0d1d26;--pane2:#122631;--pane3:#172e39;--mint:#55e5ca;--mint2:#a1f3e4;--text:#e6f0f2;--muted:#91a9b4;--line:#25404b;--red:#ff9e98;--amber:#f4c483;--radius:16px;font-family:Inter,-apple-system,BlinkMacSystemFont,"SF Pro Display","PingFang SC","Microsoft YaHei",sans-serif;-webkit-font-smoothing:antialiased;font-size:14px}
*{box-sizing:border-box}html,body{margin:0;min-height:100%;background:var(--bg);color:var(--text)}body{overscroll-behavior:none}button,input{font:inherit}button{cursor:pointer;touch-action:manipulation}button:disabled{opacity:.38;cursor:not-allowed}button:focus-visible,input:focus-visible{outline:2px solid var(--mint);outline-offset:2px}button:not(.tool){border:1px solid transparent;border-radius:10px;font-weight:650}a{color:var(--mint)}h1,h2,h3,p{margin-top:0}.app{min-height:100dvh;display:flex;flex-direction:column}.app[hidden],.gate[hidden],.modal-bg[hidden],[hidden]{display:none!important}
.topbar{height:76px;display:flex;align-items:center;justify-content:space-between;padding:0 clamp(16px,3vw,38px);border-bottom:1px solid var(--line);background:#0a1922}.top-brand{display:flex;align-items:center;gap:12px}.brand-mark,.brand-emblem{font-family:Georgia,serif;display:grid;place-items:center;color:var(--mint);border:1.5px solid #31796e;background:#102c30}.brand-mark{width:40px;height:40px;border-radius:11px;font-size:34px}.top-brand strong{display:block;letter-spacing:.12em;font-size:15px}.top-brand small{color:var(--muted);display:block;font-size:11px;margin-top:4px;letter-spacing:.045em}.status-stack{text-align:right;display:flex;align-items:center;gap:12px}.status-stack #app-version{font:700 10px ui-monospace,monospace;letter-spacing:.08em;color:#7c96a2}.conn{border:1px solid var(--line);font-size:11px;letter-spacing:.04em;color:var(--muted);padding:6px 9px;border-radius:30px}.conn.online{border-color:#27756b;color:var(--mint)}.conn.offline{border-color:#5b5e57;color:#e0c8a9}
.filebar{display:flex;align-items:center;gap:14px;padding:15px clamp(16px,3vw,38px);min-height:84px;border-bottom:1px solid var(--line)}.primary{background:var(--mint);color:#08201d;padding:12px 17px;white-space:nowrap}.primary:hover{background:var(--mint2)}.primary .symbol{font-size:19px;margin-right:8px;vertical-align:-1px}.file-meta{min-width:0;flex:1;display:flex;flex-direction:column;gap:5px}.file-meta strong{font-size:13px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.file-meta span{color:var(--muted);font-size:11px;line-height:1.2}.icon-button{color:var(--muted);border:1px solid var(--line)!important;background:var(--pane);font-size:20px;min-width:42px;height:42px}.icon-button:hover{color:var(--text)}
.main{display:grid;grid-template-columns:minmax(0,1fr) 344px;gap:16px;padding:18px clamp(16px,3vw,38px);flex:1;min-height:0;max-width:1800px;width:100%;margin:0 auto}.drawing-panel{border:1px solid var(--line);border-radius:var(--radius);background:#0b1922;display:flex;flex-direction:column;min-width:0;height:calc(100dvh - 196px);min-height:480px;overflow:hidden}.canvas-topline,.canvas-footer{height:46px;flex-shrink:0;display:flex;align-items:center;justify-content:space-between;padding:0 17px;background:var(--pane);gap:10px}.canvas-topline{border-bottom:1px solid var(--line)}.canvas-footer{border-top:1px solid var(--line)}.paper-id{font-size:11px;color:#c7d9de;display:flex;align-items:center;gap:8px;min-width:0}.paper-id span:last-child{overflow:hidden;text-overflow:ellipsis;white-space:nowrap}.live-dot{width:7px;height:7px;background:var(--mint);border-radius:50%;box-shadow:0 0 10px #36daba55;flex-shrink:0}.zoom-tools,.page-nav{display:flex;align-items:center;gap:10px}.zoom-tools button,.page-nav button{background:#17313c;color:var(--text);height:30px;min-width:32px;border:1px solid var(--line);border-radius:8px;font-size:20px;line-height:1}.zoom-tools span,.page-nav span{color:var(--muted);font:600 11px ui-monospace,monospace;min-width:46px;text-align:center}.page-nav span{min-width:56px}.canvas-footer #scale-caption{color:var(--muted);font-size:10.5px;line-height:1.25;text-align:right}
.viewer{position:relative;flex:1;min-height:0;overflow:hidden;touch-action:none;user-select:none;background-color:#0b1922;background-image:radial-gradient(#2a424e 0.7px, transparent 0.7px);background-size:18px 18px;cursor:grab}.viewer.measuring{cursor:crosshair}.viewer:active{cursor:grabbing}.page-wrap{position:absolute;top:0;left:0;transform-origin:top left;will-change:transform;box-shadow:0 6px 38px #01070baa;background:white}.page-wrap canvas{display:block}.page-wrap svg{position:absolute;inset:0;width:100%;height:100%;overflow:visible;pointer-events:none}.floating-help{position:absolute;bottom:18px;left:50%;transform:translateX(-50%);border:1px solid #4a8378;color:#e0fcf4;background:#103c39ed;backdrop-filter:blur(8px);border-radius:99px;padding:10px 15px;text-align:center;font-size:11px;white-space:nowrap;max-width:calc(100% - 16px);overflow:hidden;text-overflow:ellipsis;pointer-events:none}
.empty-screen{position:absolute;inset:0;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;padding:25px}.empty-art{height:110px;width:150px;position:relative;display:grid;place-items:center;margin-bottom:4px}.empty-art span{color:var(--mint);font-size:102px;font-family:Georgia,serif;font-weight:200;line-height:1}.empty-art>div{position:absolute;border:1px dashed #5b9a9c;width:90px;height:90px;transform:rotate(45deg);opacity:.6}.empty-screen h2{font-weight:700;letter-spacing:.025em;font-size:20px;margin:22px 0 10px}.empty-screen p{color:var(--muted);line-height:1.8;font-size:12px;margin-bottom:24px}.subtle-btn{background:#17343b;color:var(--mint);border-color:#2f6769!important;padding:12px 16px}
.sidebar{min-width:0;max-height:calc(100dvh - 196px);overflow-y:auto;scrollbar-width:thin;scrollbar-color:#274550 transparent;padding:5px 2px 28px}.section-head,.records-title{display:flex;align-items:center;justify-content:space-between;gap:8px;margin-bottom:16px}.section-head h2{font-size:18px;margin:6px 0 0}.section-head h3,.records-title h3{margin:0;font-size:13px}.eyebrow{color:var(--mint);font:700 10px ui-monospace,SFMono-Regular,monospace;letter-spacing:.18em}.secondary{background:var(--pane2);color:#d7e8e9;border:1px solid var(--line)!important;padding:10px 12px}.small{font-size:11px;padding:7px 12px}.tools-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:14px}.tool{border:1px solid #28444e;background:#0f212b;color:#b9ced4;border-radius:12px;min-height:83px;padding:10px 6px;display:flex;align-items:center;justify-content:center;gap:9px;flex-direction:column;font-size:11px;font-weight:650}.tool:hover{border-color:#4e7d7c}.tool.active{background:#123c3a;border-color:#4bd9bc;color:var(--mint2);box-shadow:inset 0 0 0 1px #4bd9bc22}.tool-icon{font-family:Georgia,serif;font-size:27px;line-height:1;font-weight:400}
.measure-card{padding:18px;background:linear-gradient(145deg,#16323b,#102832);border:1px solid #2c555a;border-radius:15px;margin-bottom:22px}.measure-kicker{color:#a8c2c9;font-size:11px;display:flex;justify-content:space-between;gap:8px}.measure-kicker span{color:var(--mint)}.measure-number{font:600 clamp(29px,3vw,42px) ui-monospace,SFMono-Regular,Menlo,monospace;letter-spacing:-.06em;margin:13px 0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.measure-number small{font-size:15px;letter-spacing:0;color:var(--mint)}.measure-explain{font-size:12px;color:#c4d7dd;line-height:1.65;min-height:38px}.hint{font-size:11px;color:#80abb1;margin-top:14px;padding-top:11px;border-top:1px solid #305157;line-height:1.45}.compact{margin-bottom:9px}.chip{font:11px ui-monospace,monospace;color:#92b4b9;background:#173038;padding:6px 9px;border-radius:7px}.diagnostics{border:1px solid var(--line);border-radius:11px;padding:12px;background:#0c1e27;margin-bottom:22px;font-size:11px;line-height:1.65;color:#9eb6be}.diagnostics p{margin:0 0 5px}.diagnostics p:last-child{margin-bottom:0}.diagnostics .warn{color:var(--amber)}.diagnostics .error{color:var(--red)}.records-title{margin-bottom:11px}.records-title span{font-size:11px;color:var(--muted)}.records{display:flex;flex-direction:column;gap:7px}.record-empty{border:1px dashed #31515c;color:#819da6;border-radius:10px;text-align:center;padding:18px 6px;font-size:11px}.record{display:flex;justify-content:space-between;align-items:center;background:var(--pane);border:1px solid var(--line);border-radius:10px;padding:10px 11px;gap:10px}.record strong{font-size:11px}.record .record-sub{font-size:10px;color:var(--muted);margin-top:5px}.record .record-val{color:var(--mint);font:700 13px ui-monospace,monospace;white-space:nowrap}.privacy{font-size:10px;line-height:1.7;color:#6e8b95;text-align:center;margin-top:22px}.privacy #offline-ready{color:#a6c7c5}
.gate{position:fixed;inset:0;z-index:100;background:radial-gradient(ellipse at 50% 25%,#174341 0%,#08151d 54%);display:grid;place-items:center;padding:22px;overflow:auto}.gate-card{width:min(440px,100%);border:1px solid #315358;background:linear-gradient(165deg,#112831f5,#0b1b24f7);border-radius:22px;box-shadow:0 28px 110px #0008;padding:clamp(25px,5vw,42px)}.brand-emblem{width:62px;height:62px;border-radius:16px;font-size:51px;margin-bottom:28px}.gate h1{font-size:31px;letter-spacing:.025em;margin:10px 0 12px}.muted{color:var(--muted);font-size:12px;line-height:1.9}.gate label,.modal label{display:block;font-size:11px;font-weight:650;margin:22px 0 9px;color:#c3d7dc}.gate input,.modal input{width:100%;background:#08171e;border:1px solid #34545d;color:#edf8fa;border-radius:10px;padding:15px;outline:0;letter-spacing:.04em}.gate input:focus,.modal input:focus{border-color:var(--mint)}.gate .large{width:100%;margin-top:14px;padding:15px;display:flex;justify-content:space-between}.notice{font-size:11px;color:#c7d5c8;line-height:1.7;border:1px solid #304c4d;background:#0d282c;border-radius:8px;padding:11px;margin-top:20px}.notice.error{color:var(--red);border-color:#784b4b;background:#342123}.gate-foot{font-size:10px;color:#76949e;line-height:1.65;margin-top:26px}.modal-bg{position:fixed;z-index:90;inset:0;background:#020b0bcc;display:grid;place-items:center;padding:20px}.modal{background:#11232e;border:1px solid #355c63;padding:25px;border-radius:18px;width:min(420px,100%)}.modal h2{font-size:19px;margin:9px 0 14px}.modal p{font-size:12px;line-height:1.7;color:var(--muted)}.modal-actions{display:flex;gap:9px;justify-content:flex-end;margin-top:20px}.toast{position:fixed;bottom:calc(23px + env(safe-area-inset-bottom));left:50%;transform:translateX(-50%);background:#163536;border:1px solid #3b8a7b;box-shadow:0 9px 30px #000a;color:#d6faf2;padding:11px 16px;border-radius:9px;max-width:90%;min-width:190px;text-align:center;font-size:12px;line-height:1.5;z-index:110;pointer-events:none}
@media(max-width:1000px){.main{grid-template-columns:minmax(0,1fr) 290px;gap:11px;padding:12px 16px}.drawing-panel,.sidebar{height:calc(100dvh - 176px);max-height:calc(100dvh - 176px)}.filebar{min-height:78px}.tools-grid{grid-template-columns:repeat(2,1fr)}.tool{min-height:70px;gap:6px}}
@media(max-width:720px){.topbar{height:60px;padding:0 15px}.brand-mark{width:34px;height:34px;font-size:29px}.top-brand strong{font-size:12px}.top-brand small{font-size:9.5px}.status-stack #app-version{display:none}.conn{font-size:10px}.filebar{min-height:70px;padding:9px 12px;gap:10px}.filebar .primary{font-size:11px;padding:10px;min-height:43px}.filebar .primary .symbol{font-size:15px;margin-right:3px}.file-meta strong{font-size:11px}.file-meta span{font-size:9px}.icon-button{min-width:36px;height:40px}.main{display:flex;flex-direction:column;gap:12px;padding:10px 10px 60px}.drawing-panel{width:100%;height:clamp(335px,51dvh,590px);min-height:335px;max-height:initial;flex-shrink:0}.sidebar{height:auto;max-height:none;padding:4px 1px}.canvas-topline,.canvas-footer{height:40px;padding:0 10px}.canvas-footer #scale-caption{font-size:9px}.zoom-tools{gap:5px}.zoom-tools span{font-size:10px}.tools-grid{grid-template-columns:repeat(3,1fr)}.tool{min-height:65px;font-size:11px}.tool-icon{font-size:24px}.measure-number{font-size:36px}.section-head h2{font-size:17px}.floating-help{font-size:10px}}
@media(max-width:360px){.filebar{gap:7px}.file-meta span{display:none}.filebar .primary{font-size:10px;padding:8px}.tools-grid{gap:6px}.tool{font-size:10px}.canvas-footer #scale-caption{max-width:190px}}

/* Beta 0.3: high-resolution page tiles and precise cursor overlay. */
.tile-canvas{position:absolute;top:0;left:0;z-index:1;pointer-events:none;transform-origin:0 0;display:block}
.page-wrap{z-index:2;background:transparent;box-shadow:none}
.page-wrap svg{touch-action:none;pointer-events:none}
.aim-cursor,.aim-snap,.aim-label{position:absolute;top:0;left:0;pointer-events:none;z-index:16;will-change:transform}
.aim-cursor{width:19px;height:24px;filter:drop-shadow(0 1px 2px #0008)}
.aim-cursor svg{position:absolute;left:0;top:0}
.aim-snap{width:20px;height:20px;margin:-10px 0 0 -10px;border:1px solid #10a990;border-radius:50%;background:#24d7b12b;box-shadow:0 0 0 2px #fff8,0 0 11px #19d8b088}
.aim-snap span{position:absolute;left:8px;top:8px;width:2px;height:2px;background:#087a68}
.aim-label{background:#14413aeb;color:#c8fff0;padding:3px 7px;border:1px solid #3ca992;border-radius:6px;font-size:10px;white-space:nowrap;z-index:17}
.precision-pad{position:absolute;bottom:13px;right:11px;z-index:25;width:122px;padding:7px;background:#0a2029f2;border:1px solid #478178;border-radius:16px;box-shadow:0 7px 24px #0009;backdrop-filter:blur(7px);-webkit-backdrop-filter:blur(7px);user-select:none;touch-action:none}
.precision-pad[data-side=left]{right:auto;left:11px}
.pad-top{display:flex;align-items:center;justify-content:space-between;color:#b9e6df;font-size:10px;letter-spacing:.035em;margin-bottom:3px}
.pad-top button{border:1px solid #40696b;background:#203c43;color:#c0f4e7;border-radius:7px;padding:1px 9px;min-height:23px;font-size:15px}
.joystick{position:relative;width:88px;height:88px;margin:3px auto 6px;border-radius:50%;background:radial-gradient(circle,#123e42,#112831 65%,#0a1c27);border:1px solid #43817d;touch-action:none;display:grid;place-items:center;overflow:hidden}
.joystick-ring{position:absolute;border:1px dashed #3d7273;border-radius:50%;inset:13px;pointer-events:none}
.joystick:after{content:'+';font:18px monospace;color:#457c80;pointer-events:none}
.joystick-thumb{position:absolute;width:30px;height:30px;border-radius:50%;border:2px solid #9cefe0;background:#2d9e92ac;box-shadow:0 2px 9px #0009;pointer-events:none;z-index:2;will-change:transform}
.pad-actions{display:grid;grid-template-columns:1fr 1fr;gap:5px}
.pad-actions button{height:33px;min-height:33px;font-size:11px;padding:3px;white-space:nowrap;border:1px solid #406770;color:#d0f0e9;background:#214049;border-radius:8px;font-weight:700}
.pad-actions .pick-button{background:#5ee9c8;color:#092b2a;border-color:#5ee9c8}
.update-button{background:#163138;border:1px solid #365b5c!important;color:#b7e9dc;padding:8px 10px;min-height:34px;font-size:11px;white-space:nowrap;border-radius:8px}
#details-toggle{display:none}
#close-details{display:none}

/* Optimized phone workspace: toolbar becomes a single scrollable strip. */
@media(max-width:720px){
 html,body{height:100%;overflow:hidden}
 body{overscroll-behavior:none}
 .app{height:100dvh;min-height:0;overflow:hidden}
 .topbar{height:calc(44px + env(safe-area-inset-top));min-height:calc(44px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 9px 0;flex-shrink:0}
 .top-brand{gap:7px}.brand-mark{height:27px;width:27px;font-size:22px;border-radius:8px}
 .top-brand strong{font-size:10.5px;letter-spacing:.05em}.top-brand small{display:none}
 .status-stack{gap:5px}.conn{font-size:9px;padding:5px 6px}.update-button{font-size:10px;min-height:29px;padding:5px 7px}
 #details-toggle{display:inline-block}
 .filebar{min-height:45px;height:45px;flex-shrink:0;padding:4px 8px;gap:7px}
 .filebar .primary{padding:6px 9px;font-size:10px;height:35px;min-height:35px}
 .filebar .primary .symbol{font-size:13px}.file-meta strong{font-size:10px}
 .file-meta span{display:none}.icon-button{height:35px;min-width:35px}
 .main{flex:1;display:flex;min-height:0;position:relative;padding:0;gap:0;width:100%;max-width:none;overflow:hidden}
 .drawing-panel{border:0;border-radius:0;margin:0;width:100%;height:100%;min-height:0;max-height:none;min-width:0;flex:1}
 .canvas-topline{height:35px;min-height:35px;padding:0 9px}
 .canvas-footer{height:27px;min-height:27px;padding:0 9px;margin-bottom:calc(63px + env(safe-area-inset-bottom))}
 .canvas-footer #scale-caption{font-size:9px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
 .viewer{flex:1;min-height:0}
 .zoom-tools{gap:4px}.zoom-tools button{min-width:29px;height:28px;font-size:19px}
 .zoom-tools span{min-width:45px;font-size:10px}
 .floating-help{bottom:69px;max-width:calc(100% - 140px);left:9px;transform:none;border-radius:9px;text-align:left;white-space:normal;padding:6px 8px;font-size:10px}
 .sidebar{position:absolute;left:0;right:0;bottom:0;z-index:31;width:100%;height:calc(63px + env(safe-area-inset-bottom));min-height:0;max-height:calc(63px + env(safe-area-inset-bottom));padding:4px 6px calc(3px + env(safe-area-inset-bottom));overflow:visible;pointer-events:none;background:linear-gradient(0deg,#08161dfc,#0a1b25ed);border-top:1px solid #37565b}
 .sidebar .tools-grid{display:flex;overflow-x:auto;overflow-y:hidden;gap:5px;max-height:52px;margin:0;padding:0 2px 2px;scrollbar-width:none;pointer-events:auto;touch-action:pan-x}
 .sidebar .tools-grid::-webkit-scrollbar{display:none}
 .sidebar .tool{flex:0 0 74px;min-height:49px;max-height:49px;border-radius:9px;padding:3px 4px;gap:2px;font-size:10px}
 .sidebar .tool-icon{font-size:17px;line-height:1}
 .sidebar:not(.details-open)>.section-head,.sidebar:not(.details-open)>.diagnostics,.sidebar:not(.details-open)>.records-title,.sidebar:not(.details-open)>.records,.sidebar:not(.details-open)>.privacy{display:none}
 .sidebar:not(.details-open) .measure-card{position:absolute;bottom:calc(71px + env(safe-area-inset-bottom));left:8px;max-width:calc(100% - 150px);width:auto;margin:0;padding:6px 9px;pointer-events:none;background:#0b252be8;border:1px solid #2b736e;border-radius:9px;box-shadow:0 4px 11px #0004}
 .sidebar:not(.details-open) .measure-kicker{display:none}
 .sidebar:not(.details-open) .measure-number{margin:0;font-size:17px;line-height:1.1}
 .sidebar:not(.details-open) .measure-number small{font-size:10px}
 .sidebar:not(.details-open) .measure-explain,.sidebar:not(.details-open) .hint{display:none}
 .sidebar.details-open{height:min(66dvh,570px);max-height:min(66dvh,570px);overflow-y:auto;padding:12px 12px calc(14px + env(safe-area-inset-bottom));display:block;pointer-events:auto;border-top:1px solid #4c8e80;box-shadow:0 -15px 40px #000a}
 .sidebar.details-open>.section-head{display:flex; margin-bottom:12px}
 .sidebar.details-open #close-details{display:inline-block}
 .sidebar.details-open .tools-grid{margin-bottom:12px}
 .sidebar.details-open .measure-card{position:static;max-width:none;padding:11px;margin-bottom:10px}
 .sidebar.details-open .measure-number{font-size:30px;margin:9px 0}
 .sidebar.details-open .diagnostics{max-height:125px;overflow:auto}
 .sidebar.details-open .privacy{margin-top:13px}
 .precision-pad{bottom:17px;right:9px;width:116px}
 .precision-pad[data-side=left]{left:9px;right:auto}
 .joystick{width:82px;height:82px}
 .empty-screen{padding:12px}.empty-art{height:82px}.empty-art span{font-size:75px}
 .empty-screen h2{font-size:17px;margin:5px 0}.empty-screen p{font-size:11px}
 .gate{overflow:auto}
}
@media(max-width:360px){
 .top-brand strong{font-size:9.5px}
 .status-stack{gap:3px}
 .filebar .primary{font-size:9px}
 .sidebar .tool{flex-basis:68px}
}

@media(max-width:720px){.sidebar[data-pad=left]:not(.details-open) .measure-card{left:auto;right:8px}}

/* Beta 0.4: approved mobile-first precision control layout. */
.pad-core{display:grid;grid-template-columns:28px minmax(0,1fr) 28px;grid-template-rows:30px 88px 30px;align-items:center;justify-items:center;gap:0}
.precision-pad{width:159px;padding:7px 8px;}
.pad-core .joystick{grid-column:2;grid-row:2;width:82px;height:82px;margin:0}
.nudge{background:#1c414a;border:1px solid #41776f!important;color:#c9ffed;border-radius:8px!important;width:28px;height:28px;line-height:1;font-size:18px;padding:0;display:grid;place-items:center;touch-action:none;user-select:none;-webkit-user-select:none}
.nudge:active{background:#3b9b8c;color:#fff}
.nudge.up{grid-column:2;grid-row:1}.nudge.left{grid-column:1;grid-row:2}.nudge.right{grid-column:3;grid-row:2}.nudge.down{grid-column:2;grid-row:3}
.pad-actions{display:flex;align-items:center;gap:5px;margin-top:4px}
.pad-actions #aim-speed{min-width:53px;flex-shrink:0}
.pad-actions span{font-size:9px;line-height:1.2;color:#a2c8c6}
.pick-float{position:absolute;bottom:15px;left:11px;z-index:24;display:flex;flex-direction:column;align-items:flex-start;gap:7px;max-width:calc(100% - 178px);pointer-events:auto}
.viewer[data-pad=left] .pick-float{left:auto;right:11px;align-items:flex-end}
.aim-status,.live-value{border:1px solid #4b8a7e;background:#112d33f4;color:#e3fff5;border-radius:9px;padding:6px 9px;max-width:100%;font-size:10px;line-height:1.3;box-shadow:0 3px 11px #0011;white-space:normal}
.aim-status{color:#c1e7dd}
.live-value{font-weight:750;font-family:ui-monospace,Menlo,monospace;font-size:16px;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.pick-buttons{display:flex;gap:6px;align-items:center}
.pick-buttons #aim-clear{padding:7px 8px;min-height:40px;border:1px solid #5a7b80!important;background:#17343c;color:#e3f7f5;border-radius:9px}
.pick-buttons .pick-button{min-height:42px;min-width:82px;padding:8px 9px;background:var(--mint);border:1px solid var(--mint)!important;color:#092c28;border-radius:11px;font-size:12px;font-weight:750}
.pick-buttons .pick-button:disabled{background:#29484e;color:#98b0b2;border-color:#41616a!important;opacity:1}
@media (max-width:720px){
 .topbar{height:calc(42px + env(safe-area-inset-top));min-height:calc(42px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 9px 0}
 .filebar{height:43px;min-height:43px}
 .main{padding:0;gap:0}
 .drawing-panel{position:relative;min-height:0;max-height:100%;height:100%;overflow:hidden}
 .viewer{flex:1;min-height:0;isolation:isolate}
 .canvas-topline{position:absolute;z-index:12;top:6px;left:8px;right:8px;width:auto;min-height:35px;height:35px;background:#0d2730ed;border:1px solid #2a5a60;border-radius:10px;padding:0 7px;box-shadow:0 3px 10px #0018;pointer-events:none}
 .canvas-topline .zoom-tools{pointer-events:auto}
 .canvas-footer{position:absolute;left:9px;right:9px;bottom:calc(70px + env(safe-area-inset-bottom));height:27px;min-height:27px;padding:0 8px;margin:0;z-index:13;background:#0d2630e6;border-radius:9px;border:1px solid #30535a;gap:5px}
 .canvas-footer #scale-caption{font-size:9px;max-width:50%;overflow:hidden;text-overflow:ellipsis}
 .floating-help{top:47px;bottom:auto;left:9px;max-width:calc(100% - 20px);width:max-content;z-index:13;white-space:normal;padding:5px 8px}
 .sidebar{position:absolute;bottom:0;left:0;right:0;height:calc(66px + env(safe-area-inset-bottom));max-height:calc(66px + env(safe-area-inset-bottom));padding:5px 6px calc(5px + env(safe-area-inset-bottom));z-index:35}
 .sidebar .tools-grid{max-height:54px;align-items:center}
 .sidebar .tool{min-height:52px;max-height:52px;flex-basis:72px;font-size:10px}
 .sidebar:not(.details-open) .measure-card{bottom:calc(112px + env(safe-area-inset-bottom));max-width:calc(100% - 174px)}
 .sidebar:not(.details-open) .measure-number{font-size:15px}
 .sidebar.details-open{height:min(68dvh,560px);max-height:min(68dvh,560px)}
 .precision-pad{bottom:calc(103px + env(safe-area-inset-bottom));right:9px;width:153px;padding:5px 7px;border-radius:16px}
 .precision-pad[data-side=left]{left:9px;right:auto}
 .pad-core{grid-template-columns:25px minmax(0,1fr) 25px;grid-template-rows:27px 80px 27px}
 .pad-core .joystick{width:77px;height:77px}
 .nudge{width:26px;height:26px}
 .pad-top{margin-bottom:1px}
 .pick-float{bottom:calc(109px + env(safe-area-inset-bottom));left:9px;max-width:calc(100% - 176px)}
 .viewer[data-pad=left] .pick-float{right:9px}
 .aim-status{font-size:9px}
 .live-value{font-size:15px}
 .empty-screen{padding:15px 10px 88px}
}
@media (max-width:360px){
 .precision-pad{transform:scale(.9);transform-origin:bottom right;right:6px}
 .precision-pad[data-side=left]{transform-origin:bottom left;left:6px}
 .pick-float{max-width:calc(100% - 151px)}
 .pick-buttons .pick-button{min-width:70px}
 .pick-buttons #aim-clear{padding:7px 6px}
}
@media (max-height:620px) and (max-width:720px){
 .precision-pad{transform:scale(.85);transform-origin:bottom right}
 .precision-pad[data-side=left]{transform-origin:bottom left}
 .aim-status{display:none}
}
/* The compact workspace already has a dedicated floating result/confirm panel.
   Never render the old measurement summary on top of the controls. */
@media (max-width:720px){
 .sidebar:not(.details-open) .measure-card{display:none!important}
 .pick-float .aim-status{max-width:165px}
 .pick-float .live-value{max-width:165px}
}

/* Beta 0.5.1: preserve the verified Beta 0.4 toolbar/panels. Remove only wheel,
   overlay a fixed fine reticle and use an independent SCREEN-PIXEL CAD layer. */
.dimension-overlay{position:absolute;inset:0;width:100%;height:100%;z-index:15;pointer-events:none;overflow:hidden;isolation:isolate}
.aim-crosshair{position:absolute;z-index:19;top:50%;left:50%;width:72px;height:72px;transform:translate(-50%,-50%);pointer-events:none;filter:drop-shadow(0 1px 2px #fff9)}
.aim-crosshair svg{width:72px;height:72px;overflow:visible}
.crosshair-hair{stroke:#0b6972;stroke-width:1.1;fill:none;stroke-linecap:round}
.crosshair-ring{stroke:#0b6972;stroke-width:1.1;fill:#fff9}
.crosshair-center{fill:#095962;stroke:#fff;stroke-width:.6}
.aim-crosshair[data-mode=snap] .crosshair-hair,.aim-crosshair[data-mode=snap] .crosshair-ring{stroke:#089d77}
.aim-crosshair[data-mode=free] .crosshair-hair,.aim-crosshair[data-mode=free] .crosshair-ring{stroke:#ba7817}
/* Pick controls retain the Beta 0.4 visual style, but occupy one compact strip
   where the wheel used to be. Bottom toolbar, header, footer stay unchanged. */
.pick-float,.viewer[data-pad=left] .pick-float{left:9px;right:9px;align-items:center;bottom:16px;width:auto;max-width:none;display:grid;grid-template-columns:minmax(0,1fr) auto;grid-template-rows:auto auto;gap:3px 10px;border:1px solid #38656b;border-radius:11px;background:#0b232be9;padding:6px 8px;box-shadow:0 4px 18px #0018;z-index:22}
.pick-float .aim-status{grid-column:1;grid-row:1;background:transparent;border:0;box-shadow:none;padding:0;font-size:10px;max-width:none}
.pick-float .live-value{grid-column:1;grid-row:2;background:transparent;border:0;box-shadow:none;padding:0;font-size:15px;max-width:none}
.pick-float .pick-buttons{grid-column:2;grid-row:1/span 2}
.record .record-remove{background:#244047;color:#d6f1eb;border:1px solid #486b71!important;border-radius:7px;padding:5px 7px;font-size:11px;flex-shrink:0}
.record .record-remove:focus-visible{outline:2px solid var(--mint)}
@media(max-width:720px){
 .pick-float,.viewer[data-pad=left] .pick-float{left:8px;right:8px;bottom:calc(110px + env(safe-area-inset-bottom));max-width:none;width:auto;padding:5px 7px;gap:2px 7px}
 .pick-float .aim-status{font-size:9px;white-space:normal;max-width:none;line-height:1.25}
 .pick-float .live-value{font-size:13px;max-width:none;white-space:nowrap}
 .pick-float .pick-buttons .pick-button{min-height:38px;min-width:80px;padding:7px}
 .pick-float .pick-buttons #aim-clear{min-height:38px}
 .detail-actions{display:flex;gap:4px}
 .detail-actions .small{padding:6px 7px;font-size:10px}
}
@media(max-width:350px){.pick-float{gap:2px 4px}.pick-float .pick-buttons{gap:3px}.pick-float .pick-buttons .pick-button{min-width:68px}.pick-float .pick-buttons #aim-clear{padding:6px 5px}.pick-float .live-value{font-size:11px}}
/* Avoid a floating snap tooltip covering pinned CAD dimension text.
   The same snap type remains visible in the compact bottom status strip. */
/* show snap candidate label: perpendicular, endpoint or edge */

/* Beta 0.5.1 Production: render the same Beta 0.4 mobile layout on a
   desktop window (centered portrait frame). This affects layout ONLY;
   no mock drawing is shipped to the real application. */
@media (min-width: 721px) {
.topbar{height:60px;padding:0 15px}.brand-mark{width:34px;height:34px;font-size:29px}.top-brand strong{font-size:12px}.top-brand small{font-size:9.5px}.status-stack #app-version{display:none}.conn{font-size:10px}.filebar{min-height:70px;padding:9px 12px;gap:10px}.filebar .primary{font-size:11px;padding:10px;min-height:43px}.filebar .primary .symbol{font-size:15px;margin-right:3px}.file-meta strong{font-size:11px}.file-meta span{font-size:9px}.icon-button{min-width:36px;height:40px}.main{display:flex;flex-direction:column;gap:12px;padding:10px 10px 60px}.drawing-panel{width:100%;height:clamp(335px,51dvh,590px);min-height:335px;max-height:initial;flex-shrink:0}.sidebar{height:auto;max-height:none;padding:4px 1px}.canvas-topline,.canvas-footer{height:40px;padding:0 10px}.canvas-footer #scale-caption{font-size:9px}.zoom-tools{gap:5px}.zoom-tools span{font-size:10px}.tools-grid{grid-template-columns:repeat(3,1fr)}.tool{min-height:65px;font-size:11px}.tool-icon{font-size:24px}.measure-number{font-size:36px}.section-head h2{font-size:17px}.floating-help{font-size:10px}

 html,body{height:100%;overflow:hidden}
 body{overscroll-behavior:none}
 .app{height:100dvh;min-height:0;overflow:hidden}
 .topbar{height:calc(44px + env(safe-area-inset-top));min-height:calc(44px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 9px 0;flex-shrink:0}
 .top-brand{gap:7px}.brand-mark{height:27px;width:27px;font-size:22px;border-radius:8px}
 .top-brand strong{font-size:10.5px;letter-spacing:.05em}.top-brand small{display:none}
 .status-stack{gap:5px}.conn{font-size:9px;padding:5px 6px}.update-button{font-size:10px;min-height:29px;padding:5px 7px}
 #details-toggle{display:inline-block}
 .filebar{min-height:45px;height:45px;flex-shrink:0;padding:4px 8px;gap:7px}
 .filebar .primary{padding:6px 9px;font-size:10px;height:35px;min-height:35px}
 .filebar .primary .symbol{font-size:13px}.file-meta strong{font-size:10px}
 .file-meta span{display:none}.icon-button{height:35px;min-width:35px}
 .main{flex:1;display:flex;min-height:0;position:relative;padding:0;gap:0;width:100%;max-width:none;overflow:hidden}
 .drawing-panel{border:0;border-radius:0;margin:0;width:100%;height:100%;min-height:0;max-height:none;min-width:0;flex:1}
 .canvas-topline{height:35px;min-height:35px;padding:0 9px}
 .canvas-footer{height:27px;min-height:27px;padding:0 9px;margin-bottom:calc(63px + env(safe-area-inset-bottom))}
 .canvas-footer #scale-caption{font-size:9px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
 .viewer{flex:1;min-height:0}
 .zoom-tools{gap:4px}.zoom-tools button{min-width:29px;height:28px;font-size:19px}
 .zoom-tools span{min-width:45px;font-size:10px}
 .floating-help{bottom:69px;max-width:calc(100% - 140px);left:9px;transform:none;border-radius:9px;text-align:left;white-space:normal;padding:6px 8px;font-size:10px}
 .sidebar{position:absolute;left:0;right:0;bottom:0;z-index:31;width:100%;height:calc(63px + env(safe-area-inset-bottom));min-height:0;max-height:calc(63px + env(safe-area-inset-bottom));padding:4px 6px calc(3px + env(safe-area-inset-bottom));overflow:visible;pointer-events:none;background:linear-gradient(0deg,#08161dfc,#0a1b25ed);border-top:1px solid #37565b}
 .sidebar .tools-grid{display:flex;overflow-x:auto;overflow-y:hidden;gap:5px;max-height:52px;margin:0;padding:0 2px 2px;scrollbar-width:none;pointer-events:auto;touch-action:pan-x}
 .sidebar .tools-grid::-webkit-scrollbar{display:none}
 .sidebar .tool{flex:0 0 74px;min-height:49px;max-height:49px;border-radius:9px;padding:3px 4px;gap:2px;font-size:10px}
 .sidebar .tool-icon{font-size:17px;line-height:1}
 .sidebar:not(.details-open)>.section-head,.sidebar:not(.details-open)>.diagnostics,.sidebar:not(.details-open)>.records-title,.sidebar:not(.details-open)>.records,.sidebar:not(.details-open)>.privacy{display:none}
 .sidebar:not(.details-open) .measure-card{position:absolute;bottom:calc(71px + env(safe-area-inset-bottom));left:8px;max-width:calc(100% - 150px);width:auto;margin:0;padding:6px 9px;pointer-events:none;background:#0b252be8;border:1px solid #2b736e;border-radius:9px;box-shadow:0 4px 11px #0004}
 .sidebar:not(.details-open) .measure-kicker{display:none}
 .sidebar:not(.details-open) .measure-number{margin:0;font-size:17px;line-height:1.1}
 .sidebar:not(.details-open) .measure-number small{font-size:10px}
 .sidebar:not(.details-open) .measure-explain,.sidebar:not(.details-open) .hint{display:none}
 .sidebar.details-open{height:min(66dvh,570px);max-height:min(66dvh,570px);overflow-y:auto;padding:12px 12px calc(14px + env(safe-area-inset-bottom));display:block;pointer-events:auto;border-top:1px solid #4c8e80;box-shadow:0 -15px 40px #000a}
 .sidebar.details-open>.section-head{display:flex; margin-bottom:12px}
 .sidebar.details-open #close-details{display:inline-block}
 .sidebar.details-open .tools-grid{margin-bottom:12px}
 .sidebar.details-open .measure-card{position:static;max-width:none;padding:11px;margin-bottom:10px}
 .sidebar.details-open .measure-number{font-size:30px;margin:9px 0}
 .sidebar.details-open .diagnostics{max-height:125px;overflow:auto}
 .sidebar.details-open .privacy{margin-top:13px}
 .precision-pad{bottom:17px;right:9px;width:116px}
 .precision-pad[data-side=left]{left:9px;right:auto}
 .joystick{width:82px;height:82px}
 .empty-screen{padding:12px}.empty-art{height:82px}.empty-art span{font-size:75px}
 .empty-screen h2{font-size:17px;margin:5px 0}.empty-screen p{font-size:11px}
 .gate{overflow:auto}

.sidebar[data-pad=left]:not(.details-open) .measure-card{left:auto;right:8px}

 .topbar{height:calc(42px + env(safe-area-inset-top));min-height:calc(42px + env(safe-area-inset-top));padding:env(safe-area-inset-top) 9px 0}
 .filebar{height:43px;min-height:43px}
 .main{padding:0;gap:0}
 .drawing-panel{position:relative;min-height:0;max-height:100%;height:100%;overflow:hidden}
 .viewer{flex:1;min-height:0;isolation:isolate}
 .canvas-topline{position:absolute;z-index:12;top:6px;left:8px;right:8px;width:auto;min-height:35px;height:35px;background:#0d2730ed;border:1px solid #2a5a60;border-radius:10px;padding:0 7px;box-shadow:0 3px 10px #0018;pointer-events:none}
 .canvas-topline .zoom-tools{pointer-events:auto}
 .canvas-footer{position:absolute;left:9px;right:9px;bottom:calc(70px + env(safe-area-inset-bottom));height:27px;min-height:27px;padding:0 8px;margin:0;z-index:13;background:#0d2630e6;border-radius:9px;border:1px solid #30535a;gap:5px}
 .canvas-footer #scale-caption{font-size:9px;max-width:50%;overflow:hidden;text-overflow:ellipsis}
 .floating-help{top:47px;bottom:auto;left:9px;max-width:calc(100% - 20px);width:max-content;z-index:13;white-space:normal;padding:5px 8px}
 .sidebar{position:absolute;bottom:0;left:0;right:0;height:calc(66px + env(safe-area-inset-bottom));max-height:calc(66px + env(safe-area-inset-bottom));padding:5px 6px calc(5px + env(safe-area-inset-bottom));z-index:35}
 .sidebar .tools-grid{max-height:54px;align-items:center}
 .sidebar .tool{min-height:52px;max-height:52px;flex-basis:72px;font-size:10px}
 .sidebar:not(.details-open) .measure-card{bottom:calc(112px + env(safe-area-inset-bottom));max-width:calc(100% - 174px)}
 .sidebar:not(.details-open) .measure-number{font-size:15px}
 .sidebar.details-open{height:min(68dvh,560px);max-height:min(68dvh,560px)}
 .precision-pad{bottom:calc(103px + env(safe-area-inset-bottom));right:9px;width:153px;padding:5px 7px;border-radius:16px}
 .precision-pad[data-side=left]{left:9px;right:auto}
 .pad-core{grid-template-columns:25px minmax(0,1fr) 25px;grid-template-rows:27px 80px 27px}
 .pad-core .joystick{width:77px;height:77px}
 .nudge{width:26px;height:26px}
 .pad-top{margin-bottom:1px}
 .pick-float{bottom:calc(109px + env(safe-area-inset-bottom));left:9px;max-width:calc(100% - 176px)}
 .viewer[data-pad=left] .pick-float{right:9px}
 .aim-status{font-size:9px}
 .live-value{font-size:15px}
 .empty-screen{padding:15px 10px 88px}


 .sidebar:not(.details-open) .measure-card{display:none!important}
 .pick-float .aim-status{max-width:165px}
 .pick-float .live-value{max-width:165px}


 .pick-float,.viewer[data-pad=left] .pick-float{left:8px;right:8px;bottom:calc(110px + env(safe-area-inset-bottom));max-width:none;width:auto;padding:5px 7px;gap:2px 7px}
 .pick-float .aim-status{font-size:9px;white-space:normal;max-width:none;line-height:1.25}
 .pick-float .live-value{font-size:13px;max-width:none;white-space:nowrap}
 .pick-float .pick-buttons .pick-button{min-height:38px;min-width:80px;padding:7px}
 .pick-float .pick-buttons #aim-clear{min-height:38px}
 .detail-actions{display:flex;gap:4px}
 .detail-actions .small{padding:6px 7px;font-size:10px}

 body { min-height:100dvh; display:flex;justify-content:center;align-items:center;overflow:hidden;background:#041219;}
 .app { flex:0 0 auto; width:430px;max-width:430px;height:min(960px,100dvh);min-height:0; margin:0 auto; overflow:hidden;border:1px solid #284f53;border-radius:16px;box-shadow:0 20px 70px #000b;}
 .gate{width:100vw;}
}

/* Beta 0.5.2: no new layout; enforce correct iPhone Air / 15 Pro
   viewport and safe-area behavior without increasing header/footer chrome. */
html,body{width:100%;max-width:100%;overflow-x:hidden;-webkit-text-size-adjust:100%;text-size-adjust:100%}
.app,.topbar,.filebar,.main,.drawing-panel,.sidebar{min-width:0;box-sizing:border-box}
.topbar,.filebar{max-width:100%}
.top-brand{min-width:0;overflow:hidden;flex:1 1 auto}
.top-brand>div{min-width:0;flex:1 1 auto;overflow:hidden}
.top-brand strong{display:block;max-width:100%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.status-stack{flex:0 0 auto;min-width:0}
.file-meta{flex:1 1 0;min-width:22px;overflow:hidden}
.open-short{display:none}
.clear-file{min-width:42px;height:42px;font-size:12px;padding:0 6px;background:#172e39;color:#d3ece8;border-color:#335961!important}
.clear-file:disabled{color:#748891;opacity:.55}
.aim-crosshair{filter:none}
.crosshair-hair{stroke:#0a8582;stroke-width:.95;stroke-linecap:butt;shape-rendering:geometricPrecision}
.aim-crosshair[data-mode=snap] .crosshair-hair{stroke:#008e72}
.aim-crosshair[data-mode=free] .crosshair-hair{stroke:#af7012}
/* Squares rather than round circles: keep the target a plain fine cross. */
.aim-snap{width:17px;height:17px;margin:-8.5px 0 0 -8.5px;border:1px solid #089d77;border-radius:0;background:transparent;box-shadow:0 0 0 1px #fff7;transform:rotate(0deg)}
.aim-snap span{display:none}
@media(max-width:720px){
 html,body{height:100%;overflow:hidden}
 .app{position:fixed;inset:0;width:100%;max-width:100%;height:auto;min-height:0;max-height:none;margin:0;overflow:hidden;display:flex;flex-direction:column}
 .topbar{flex:0 0 auto;width:100%;padding:env(safe-area-inset-top) max(7px,env(safe-area-inset-right)) 0 max(7px,env(safe-area-inset-left));gap:5px;overflow:hidden}
 .top-brand{flex:1 1 80px;gap:5px}
 .brand-mark{flex:0 0 26px}
 .top-brand strong{font-size:10px;letter-spacing:.025em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
 .status-stack{gap:4px;flex:0 0 auto}
 .conn{font-size:9px;padding:4px 5px;white-space:nowrap}
 .update-button{font-size:10px;padding:5px 6px;white-space:nowrap}
 .filebar{width:100%;flex:0 0 43px;padding:4px 7px;gap:5px;overflow:hidden}
 .filebar .primary{flex:0 0 auto;height:34px;min-height:34px;padding:5px 7px;font-size:10px;white-space:nowrap}
 .filebar .primary .symbol{margin-right:2px}
 .file-meta strong{display:block;font-size:10px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
 .icon-button{min-width:33px;width:33px;height:34px;flex:0 0 33px;font-size:18px;padding:0}
 .clear-file{min-width:37px;width:37px;height:34px;flex:0 0 37px;font-size:11px;padding:0}
 .main{flex:1 1 auto;min-height:0;height:auto;width:100%;max-width:100%;overflow:hidden;padding:0}
 .drawing-panel{height:100%;max-height:100%;min-width:0;flex:1 1 auto}
 .viewer{flex:1 1 auto;min-height:0;width:100%}
 .sidebar{padding-left:max(6px,env(safe-area-inset-left));padding-right:max(6px,env(safe-area-inset-right))}
 .canvas-topline{max-width:calc(100% - 16px);overflow:hidden;gap:4px}
 .paper-id{flex:1 1 auto;min-width:0;white-space:nowrap}
 .zoom-tools{flex:0 0 auto}
 .canvas-footer{max-width:calc(100% - 18px)}
 .empty-screen{width:100%}
 .pick-float,.viewer[data-pad=left] .pick-float{max-width:calc(100% - 16px)}
 .aim-crosshair,.aim-crosshair svg{width:72px;height:72px}
}
@media(max-width:390px){
 .open-long{display:none}.open-short{display:inline}
 .status-stack{gap:3px}
 .filebar .primary{font-size:10px}
}
@media(max-width:345px){
 .top-brand strong{font-size:9px;max-width:46px}
 .status-stack .conn{font-size:8px;padding:4px}
 .update-button{font-size:9px;padding:4px 5px}
 .filebar .primary{padding:4px 6px}
 .icon-button{min-width:31px;flex-basis:31px;width:31px}
 .clear-file{min-width:33px;flex-basis:33px;width:33px;font-size:10px}
}
/* Desktop preview still uses centered portrait frame from Beta 0.5.1. */
@media(min-width:721px){.app{max-width:430px}.filebar{gap:6px}.clear-file{flex:0 0 auto}}
@media(max-width:720px){
 /* Five essential tools remain fully visible on both narrow iPhones. */
 .sidebar .tools-grid{gap:4px;overflow-x:hidden;padding:0 1px 2px}
 .sidebar .tool{flex:1 1 0;min-width:0;max-width:none;font-size:9.5px;padding:3px 1px}
}

/* Beta 0.5.3: One adaptive phone workspace, rather than stacked device widths.
   A mobile Safari session requesting the desktop site can report a 980px CSS
   viewport, so detect touch as well as CSS width. Never shift the drawing off
   screen or reserve an unaccounted footer beyond the visual viewport. */
@media (max-width:720px), (any-pointer:coarse){
 html,body{margin:0!important;padding:0!important;width:100%!important;min-width:0!important;max-width:100%!important;height:100%!important;overflow:hidden!important;position:relative!important;overscroll-behavior:none}
 body{display:block!important;align-items:initial!important;justify-content:initial!important;min-height:0!important}
 .app{position:fixed!important;inset:0 auto auto 0!important;display:flex!important;flex-direction:column!important;box-sizing:border-box!important;width:100%!important;min-width:0!important;max-width:100%!important;height:var(--avm-vh,100dvh)!important;min-height:0!important;max-height:none!important;margin:0!important;border:0!important;border-radius:0!important;box-shadow:none!important;overflow:hidden!important;transform:none!important}
 .topbar{display:flex!important;flex:0 0 auto!important;position:relative!important;height:calc(44px + env(safe-area-inset-top))!important;min-height:calc(44px + env(safe-area-inset-top))!important;max-height:none!important;margin:0!important;padding:env(safe-area-inset-top) max(7px,env(safe-area-inset-right)) 0 max(7px,env(safe-area-inset-left))!important;gap:4px!important;width:100%!important;min-width:0!important;box-sizing:border-box!important;overflow:hidden!important;align-items:center!important;justify-content:space-between!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
 .top-brand{min-width:0!important;flex:1 1 72px!important;display:flex!important;gap:5px!important;align-items:center!important;overflow:hidden!important}
 .brand-mark{flex:0 0 26px!important;width:26px!important;height:26px!important;font-size:22px!important;border-radius:7px!important}
 .top-brand>div{flex:1 1 0!important;min-width:0!important;overflow:hidden!important}
 .top-brand strong{display:block!important;max-width:100%!important;font-size:clamp(9px,2.65vw,12px)!important;letter-spacing:.01em!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important;filter:none!important;text-shadow:none!important}
 .top-brand small,.status-stack #app-version{display:none!important}
 .status-stack{flex:0 0 auto!important;display:flex!important;align-items:center!important;min-width:0!important;gap:clamp(2px,.75vw,5px)!important}
 .conn{font-size:clamp(8px,2.2vw,10px)!important;padding:5px clamp(3px,.8vw,6px)!important;white-space:nowrap!important;line-height:1.1!important}
 .update-button{display:inline-flex!important;align-items:center!important;justify-content:center!important;min-height:30px!important;padding:5px clamp(4px,1vw,7px)!important;font-size:clamp(9px,2.4vw,11px)!important;line-height:1.1!important;white-space:nowrap!important;filter:none!important;text-shadow:none!important;backdrop-filter:none!important;-webkit-backdrop-filter:none!important}
 #details-toggle{display:inline-flex!important}
 .filebar{flex:0 0 44px!important;min-height:44px!important;height:44px!important;max-width:100%!important;margin:0!important;padding:4px max(6px,env(safe-area-inset-right)) 4px max(6px,env(safe-area-inset-left))!important;display:flex!important;gap:5px!important;align-items:center!important;overflow:hidden!important}
 .filebar .primary{flex:0 0 auto!important;min-height:35px!important;height:35px!important;max-width:42%!important;padding:5px clamp(5px,1.4vw,10px)!important;font-size:clamp(9px,2.5vw,11px)!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important}
 .filebar .primary .symbol{font-size:13px!important;margin-right:2px!important}
 .file-meta{flex:1 1 0!important;min-width:0!important;max-width:none!important;display:block!important;overflow:hidden!important}
 .file-meta strong{display:block!important;min-width:0!important;max-width:100%!important;white-space:nowrap!important;overflow:hidden!important;text-overflow:ellipsis!important;font-size:clamp(9px,2.5vw,11px)!important}
 .file-meta span{display:none!important}
 .icon-button,.clear-file{flex:0 0 34px!important;min-width:34px!important;width:34px!important;max-width:34px!important;height:35px!important;padding:0!important;border-radius:8px!important;line-height:1!important}
 .clear-file{font-size:11px!important}
 .main{flex:1 1 0!important;min-height:0!important;max-height:none!important;width:100%!important;max-width:100%!important;min-width:0!important;display:flex!important;position:relative!important;gap:0!important;margin:0!important;padding:0!important;overflow:hidden!important;box-sizing:border-box!important}
 .drawing-panel{display:flex!important;flex-direction:column!important;flex:1 1 0!important;position:relative!important;min-width:0!important;width:100%!important;height:100%!important;min-height:0!important;max-height:none!important;margin:0!important;padding:0!important;border:0!important;border-radius:0!important;overflow:hidden!important}
 .viewer{display:block!important;position:relative!important;flex:1 1 0!important;min-width:0!important;width:100%!important;min-height:0!important;max-height:none!important;overflow:hidden!important;isolation:isolate!important}
 .canvas-topline{position:absolute!important;top:5px!important;left:7px!important;right:7px!important;width:auto!important;max-width:none!important;min-width:0!important;z-index:12!important;height:35px!important;min-height:35px!important;margin:0!important;padding:0 7px!important;gap:4px!important;background:#0d2730f0!important;border:1px solid #2a5a60!important;border-radius:9px!important;pointer-events:none!important}
 .canvas-topline .zoom-tools{pointer-events:auto!important;flex:0 0 auto!important;gap:3px!important}
 .paper-id{flex:1 1 0!important;min-width:0!important;overflow:hidden!important;white-space:nowrap!important;font-size:10px!important}
 .paper-id #paper-status{max-width:100%!important;white-space:nowrap!important;text-overflow:ellipsis!important;overflow:hidden!important}
 .zoom-tools button{height:28px!important;min-width:29px!important;padding:0!important}
 .zoom-tools span{min-width:43px!important;font-size:10px!important}
 .sidebar{position:absolute!important;z-index:35!important;left:0!important;right:0!important;bottom:0!important;width:100%!important;height:calc(62px + env(safe-area-inset-bottom))!important;max-height:calc(62px + env(safe-area-inset-bottom))!important;min-height:0!important;display:block!important;margin:0!important;padding:4px max(5px,env(safe-area-inset-right)) calc(4px + env(safe-area-inset-bottom)) max(5px,env(safe-area-inset-left))!important;overflow:visible!important;pointer-events:none!important;box-sizing:border-box!important}
 .sidebar .tools-grid{display:flex!important;align-items:center!important;gap:3px!important;width:100%!important;max-width:none!important;max-height:53px!important;margin:0!important;padding:0!important;overflow-x:hidden!important;overflow-y:hidden!important;pointer-events:auto!important}
 .sidebar .tool{display:flex!important;flex:1 1 0!important;min-width:0!important;max-width:none!important;min-height:51px!important;max-height:51px!important;gap:2px!important;padding:3px 0!important;font-size:clamp(9px,2.4vw,11px)!important;border-radius:9px!important;line-height:1.2!important;white-space:nowrap!important}
 .sidebar .tool-icon{font-size:17px!important;line-height:1!important}
 .sidebar:not(.details-open)>.section-head,.sidebar:not(.details-open)>.diagnostics,.sidebar:not(.details-open)>.records-title,.sidebar:not(.details-open)>.records,.sidebar:not(.details-open)>.privacy,.sidebar:not(.details-open) .measure-card{display:none!important}
 .sidebar.details-open{height:min(68dvh,560px)!important;max-height:min(68dvh,560px)!important;overflow-y:auto!important;padding:10px 11px calc(14px + env(safe-area-inset-bottom))!important;pointer-events:auto!important;box-shadow:0 -12px 25px #0009!important}
 .sidebar.details-open>.section-head,.sidebar.details-open .measure-card{display:flex!important}
 .sidebar.details-open .measure-card{display:block!important;position:static!important;margin-bottom:10px!important}
 .sidebar.details-open .tools-grid{margin-bottom:12px!important}
 .sidebar.details-open #close-details{display:inline-block!important}
 .canvas-footer{position:absolute!important;z-index:13!important;left:8px!important;right:8px!important;bottom:calc(68px + env(safe-area-inset-bottom))!important;display:flex!important;align-items:center!important;gap:5px!important;width:auto!important;max-width:none!important;height:27px!important;min-height:27px!important;margin:0!important;padding:0 7px!important;border:1px solid #30535a!important;border-radius:8px!important;background:#0d2630ee!important;box-sizing:border-box!important}
 .canvas-footer #scale-caption{flex:1 1 0!important;min-width:0!important;max-width:none!important;font-size:9px!important;overflow:hidden!important;text-overflow:ellipsis!important;white-space:nowrap!important}
 .page-nav{flex:0 0 auto!important;gap:3px!important}
 .page-nav button{min-width:26px!important;height:25px!important}
 .page-nav span{min-width:45px!important;font-size:10px!important}
 .floating-help{position:absolute!important;z-index:13!important;top:45px!important;bottom:auto!important;left:8px!important;right:auto!important;max-width:calc(100% - 16px)!important;width:max-content!important;margin:0!important;padding:5px 8px!important;transform:none!important;border-radius:7px!important;font-size:10px!important;white-space:normal!important;overflow:hidden!important}
 .pick-float,.viewer[data-pad=left] .pick-float{position:absolute!important;z-index:22!important;left:8px!important;right:8px!important;bottom:calc(106px + env(safe-area-inset-bottom))!important;display:grid!important;grid-template-columns:minmax(0,1fr) auto!important;grid-template-rows:auto auto!important;align-items:center!important;width:auto!important;max-width:none!important;margin:0!important;padding:5px 7px!important;gap:2px 6px!important;border-radius:9px!important;pointer-events:auto!important}
 .pick-float .aim-status{grid-column:1!important;grid-row:1!important;padding:0!important;max-width:none!important;font-size:10px!important;line-height:1.1!important;white-space:normal!important}
 .pick-float .live-value{grid-column:1!important;grid-row:2!important;max-width:none!important;font-size:13px!important;line-height:1.2!important}
 .pick-float .pick-buttons{grid-column:2!important;grid-row:1/span 2!important;gap:4px!important}
 .pick-float .pick-buttons .pick-button{min-width:73px!important;min-height:36px!important;padding:5px 6px!important;font-size:12px!important}
 .pick-float .pick-buttons #aim-clear{min-height:36px!important;padding:5px 6px!important;font-size:11px!important}
 .empty-screen{padding:12px 12px calc(82px + env(safe-area-inset-bottom))!important}
 .empty-art{height:72px!important;margin:0!important}.empty-art span{font-size:66px!important}
 .empty-screen h2{font-size:clamp(16px,4.5vw,19px)!important;margin:8px 0!important}
 .empty-screen p{font-size:11px!important;margin-bottom:14px!important}
 .aim-crosshair,.aim-crosshair svg{width:72px!important;height:72px!important;filter:none!important}
 .gate{width:100%!important;max-width:100%!important;box-sizing:border-box!important;padding:calc(14px + env(safe-area-inset-top)) 15px calc(14px + env(safe-area-inset-bottom))!important}
}
@media (max-width:350px),((any-pointer:coarse) and (max-width:380px)){
 .top-brand strong{font-size:9px!important;letter-spacing:0!important}
 .status-stack{gap:2px!important}
 .conn{font-size:8px!important;padding:4px 3px!important}
 .update-button{font-size:9px!important;padding:5px 4px!important}
 .filebar .primary{max-width:38%!important;padding:5px 6px!important}
 .open-long{display:none!important}.open-short{display:inline!important}
}
@media (orientation:landscape) and (max-height:570px) and (any-pointer:coarse){
 .topbar{height:calc(35px + env(safe-area-inset-top))!important;min-height:calc(35px + env(safe-area-inset-top))!important}
 .filebar{height:37px!important;min-height:37px!important;flex-basis:37px!important}
 .sidebar{height:calc(53px + env(safe-area-inset-bottom))!important;max-height:calc(53px + env(safe-area-inset-bottom))!important}
 .sidebar .tools-grid{max-height:46px!important}
 .sidebar .tool{min-height:44px!important;max-height:44px!important}
 .canvas-footer{bottom:calc(59px + env(safe-area-inset-bottom))!important}
 .pick-float,.viewer[data-pad=left] .pick-float{bottom:calc(90px + env(safe-area-inset-bottom))!important}
 .empty-art{display:none!important}
}

/* Beta 0.5.4 authorization layer; does not alter the approved tool layout. */
.authorization-block,.authorization-check{position:fixed;inset:0;z-index:900;display:flex;align-items:center;justify-content:center;overflow:auto;padding:18px;padding-top:calc(18px + env(safe-area-inset-top));padding-bottom:calc(18px + env(safe-area-inset-bottom));background:#041014f2}
.authorization-dialog{background:#142d35;color:#f2faf8;border:1px solid #47737b;border-radius:18px;box-shadow:0 20px 65px #0009;padding:32px 22px;width:min(380px,100%);text-align:center;font-size:19px;font-weight:700;line-height:1.6}
.authorization-check-inner{width:min(380px,100%);border-radius:14px;border:1px solid #315b62;background:#102832;padding:25px;text-align:center;font-size:15px;color:#edf9f7}
.authorization-check-inner p{margin-bottom:16px}