:root{--bg: #1e1e2f;--panel: #2a2a3d;--accent: #5eead4;--danger: #ff4d4d;--text: #f5f5f5;--muted: #b0b0b0}*{box-sizing:border-box}html,body{margin:0;height:100%;font-family:Segoe UI,sans-serif;color:var(--text);background:var(--bg)}.app{display:grid;grid-template-areas:"header header" "sidebar viewer" "footer footer";grid-template-columns:320px 1fr;grid-template-rows:auto 1fr auto;min-height:100vh;gap:12px;padding:12px}.app--landing{display:flex;flex-direction:column;align-items:center;justify-content:center;gap:48px;padding:72px 16px}.landing{display:flex;flex-direction:column;align-items:center;text-align:center;gap:32px;max-width:720px}.landing__hero{display:flex;flex-direction:column;gap:12px}.landing__badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 14px;border-radius:999px;background:#5eead41f;color:var(--accent);font-weight:600;letter-spacing:.04em;text-transform:uppercase;font-size:.75rem}.landing__title{margin:0;font-size:clamp(2rem,5vw,3rem)}.landing__description{margin:0;color:var(--muted);font-size:1rem;line-height:1.6}.landing__dropzone{position:relative;display:flex;flex-direction:column;align-items:center;gap:18px;width:min(520px,90vw);padding:36px;border-radius:28px;border:1px dashed rgba(94,234,212,.3);background:#1a1a28bf;box-shadow:0 24px 48px #05051173;cursor:pointer;transition:border-color .2s ease,transform .2s ease,background .2s ease;outline:none}.landing__dropzone:hover{transform:translateY(-2px);border-color:#5eead499;background:#202034d9}.landing__dropzone:focus-visible{box-shadow:0 0 0 3px #5eead459}.landing__dropzone--active{border-color:var(--accent);background:#1a292dd9}.landing__icon{display:grid;place-items:center;width:84px;height:84px;border-radius:24px;background:#5eead426;font-size:2.8rem}.landing__text{display:flex;flex-direction:column;gap:6px}.landing__headline{font-size:1.35rem;font-weight:600}.landing__subheadline{color:var(--muted);font-size:.95rem}.landing__cta{padding:10px 20px;border-radius:999px;border:none;font-weight:600;background:var(--accent);color:#041818;cursor:pointer;transition:transform .2s ease,box-shadow .2s ease}.landing__cta:hover{transform:translateY(-1px);box-shadow:0 12px 22px #5eead459}.landing__hint{font-size:.85rem;color:var(--muted)}.landing__footer{width:min(720px,100%);align-self:center}@media (max-width: 720px){.landing__dropzone{padding:28px 20px}.landing__icon{width:68px;height:68px;font-size:2.2rem}}header.header{grid-area:header;display:grid;gap:16px;padding:16px;background:linear-gradient(135deg,#24243af2,#212130f2);border-radius:20px;border:1px solid rgba(94,234,212,.1);box-shadow:0 18px 34px #05051173;grid-template-columns:minmax(0,1fr)}header .logo{font-weight:700;font-size:1.3rem;color:var(--accent)}.header__left{display:flex;align-items:center;justify-content:flex-start}.toolbar{display:flex;flex-wrap:wrap;align-items:center;gap:12px}.toolbar__group{display:inline-flex;align-items:center;gap:8px;padding:10px 12px;border-radius:14px;border:1px solid rgba(94,234,212,.12);background:#1a1a28b3;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.toolbar__badge{display:inline-flex;align-items:center;justify-content:center;padding:6px 10px;border-radius:999px;background:#5eead41a;color:var(--accent);font-size:.85rem;font-weight:600}.btn{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;border:1px solid rgba(94,234,212,.2);background:#2b2b40e6;color:var(--text);font-weight:600;letter-spacing:.01em;cursor:pointer;transition:transform .2s ease,border-color .2s ease,background .2s ease}.btn:hover:not(:disabled){transform:translateY(-1px);border-color:var(--accent);background:#343450f2}.btn:disabled{opacity:.5;cursor:not-allowed;transform:none}.btn__icon{font-size:1rem}.btn__label{font-size:.85rem}.btn--icon{padding-inline:14px}.btn--danger{border-color:#ff4d4d66;background:#ff4d4d26;color:#ffe5e5}.btn--danger:hover:not(:disabled){border-color:#ff4d4d99;background:#ff4d4d40}.language-selector{display:flex;flex-direction:column;gap:6px;align-self:flex-start}.language-selector__label{font-size:.75rem;color:var(--muted);letter-spacing:.04em;text-transform:uppercase}.language-selector select{background:#1d1d2ee6;color:var(--text);border-radius:12px;border:1px solid rgba(94,234,212,.15);padding:10px 14px;font-weight:600;transition:border-color .2s ease,box-shadow .2s ease}.language-selector select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #5eead440}@media (min-width: 960px){header.header{grid-template-columns:auto 1fr auto;align-items:center}.header__left{flex-wrap:nowrap}.language-selector{align-self:center}}.sidebar-upload{display:flex;flex-direction:column;gap:16px;padding:18px;margin-bottom:16px;border-radius:16px;border:1px dashed rgba(94,234,212,.2);background:#202030d9;box-shadow:0 12px 24px #05051159;cursor:pointer;transition:border-color .2s ease,background .2s ease,transform .2s ease;outline:none}.sidebar-upload:hover{transform:translateY(-2px);border-color:#5eead473;background:#28283ee6}.sidebar-upload:focus-visible{box-shadow:0 0 0 3px #5eead459}.sidebar-upload--active{border-color:var(--accent);background:#1a292dd9}.sidebar-upload__header{display:flex;align-items:center;justify-content:space-between;gap:12px}.sidebar-upload__badge{display:inline-flex;align-items:center;justify-content:center;padding:4px 12px;border-radius:999px;background:#5eead426;color:var(--accent);font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase}.sidebar-upload__cta{display:inline-flex;align-items:center;justify-content:center;padding:8px 14px;border-radius:999px;font-weight:600;background:var(--accent);color:#041818;transition:transform .2s ease,box-shadow .2s ease}.sidebar-upload:hover .sidebar-upload__cta{transform:translateY(-1px);box-shadow:0 12px 20px #5eead44d}.sidebar-upload__body{display:flex;gap:12px;align-items:center}.sidebar-upload__icon{display:grid;place-items:center;width:52px;height:52px;border-radius:14px;background:#5eead42e;font-size:1.8rem}.sidebar-upload__copy{display:flex;flex-direction:column;gap:6px}.sidebar-upload__title{font-weight:600;font-size:1rem}.sidebar-upload__subtitle{font-size:.85rem;color:var(--muted);line-height:1.4}.sidebar-upload__hint{font-size:.75rem;color:var(--muted)}.sidebar{grid-area:sidebar;background:var(--panel);border-radius:12px;padding:12px;overflow:auto}.sidebar h4{margin-top:0;color:var(--accent)}.sidebar .sidebar-actions{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:8px}.sidebar .json-editor{width:100%;min-height:220px;border-radius:8px;border:1px solid #444;background:#1d1d2a;color:var(--text);padding:10px;font-family:Fira Code,monospace;font-size:.85rem;resize:vertical}.sidebar .json-editor:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #5eead426}.sidebar .json-toolbar{margin-top:8px;display:flex;flex-wrap:wrap;gap:8px}.sidebar .sidebar-hint{display:block;margin-top:8px;font-size:.75rem;color:var(--muted);line-height:1.4}.sidebar .templates{margin-top:16px;padding-top:12px;border-top:1px solid #3a3a4f;display:flex;flex-direction:column;gap:10px}.sidebar .templates h5{margin:0;font-size:1rem;color:var(--text)}.sidebar .templates__save{display:flex;flex-wrap:wrap;gap:8px}.sidebar .templates__save input{flex:1;min-width:0;background:#1d1d2a;color:var(--text);border-radius:8px;border:1px solid #444;padding:6px 10px}.sidebar .templates__save input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #5eead426}.sidebar .templates__select label{display:block;font-size:.75rem;color:var(--muted);margin-bottom:4px}.sidebar .templates__controls{display:flex;flex-wrap:wrap;gap:6px}.sidebar .templates__controls select{flex:1;min-width:0;background:#1d1d2a;color:var(--text);border-radius:8px;border:1px solid #444;padding:6px 10px}.sidebar .templates__controls select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 2px #5eead426}.sidebar .templates__empty{margin:0;font-size:.8rem;color:var(--muted)}.templates__delete{border-color:var(--danger);color:var(--danger);background:transparent}.templates__delete:hover{background:#ff4d4d26;border-color:var(--danger)}.viewer{grid-area:viewer;background:var(--panel);border-radius:12px;overflow:auto;display:flex;justify-content:center;align-items:flex-start;padding:12px}.footer{grid-area:footer;background:var(--panel);border-radius:12px;padding:12px 16px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;font-size:.9rem}.footer__brand{display:flex;align-items:center;gap:12px}.footer__logo{width:40px;height:40px}.footer__brand-text{display:flex;flex-direction:column;gap:4px}.footer__app-name{font-weight:600;color:var(--accent)}.footer__version{font-size:.8rem;color:var(--muted)}.footer__details{display:flex;flex-direction:column;gap:4px;text-align:right;color:var(--muted)}.canvas-container{position:relative}#pdfCanvas,#overlayCanvas{display:block}#overlayCanvas{position:absolute;inset:0;pointer-events:none;z-index:1}.annotations-layer{position:absolute;inset:0;z-index:15;pointer-events:none}.hitbox{position:absolute;inset:0;cursor:crosshair;z-index:5}.annotation{position:absolute;pointer-events:auto;cursor:grab;background:#ffffff26;padding:2px 4px;border-radius:4px;white-space:nowrap;transition:.2s;font-family:"Helvetica, Arial, sans-serif";font-weight:400;letter-spacing:0;line-height:1;-webkit-user-select:none;user-select:none}.annotation:hover{background:#5eead440;border:1px dashed var(--accent)}.annotation.dragging{cursor:grabbing}.annotation-editor{position:absolute;z-index:20;background:linear-gradient(180deg,#222234f5,#181828f5);padding:14px;border:1px solid rgba(94,234,212,.25);border-radius:8px;display:flex;flex-direction:column;gap:8px;min-width:260px;box-shadow:0 14px 30px #00000047;-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px)}.annotation-editor input[type=text],.annotation-editor input[type=number],.annotation-editor select{border-radius:4px;border:1px solid rgba(94,234,212,.25);padding:6px;background:#1e1e2fe6;color:var(--text);font-size:.9rem}.annotation-editor input[type=number],.annotation-editor select{width:100%}.annotation-editor input[type=color]{width:44px;height:36px;border:1px solid rgba(94,234,212,.35);border-radius:6px;padding:0;background:transparent;cursor:pointer}.annotation-editor button{cursor:pointer;border:none;border-radius:6px;padding:6px 10px;font-size:.9rem;background:var(--accent);color:#0b1f1f;transition:transform .1s ease}.annotation-editor button:hover{transform:translateY(-1px)}.annotation-editor.editing{border-color:#5eead4a6;box-shadow:0 18px 36px #00000059,0 0 0 1px #5eead440}.annotation-editor.editing:before{content:"";position:absolute;inset:0;border-radius:8px;padding:1px;background:linear-gradient(135deg,rgba(94,234,212,.45),transparent 70%);-webkit-mask:linear-gradient(#000 0 0) content-box,linear-gradient(#000 0 0);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none}.annotation-editor .field{display:flex;flex-direction:column;gap:4px}.annotation-editor .field-small{max-width:120px}.annotation-editor .field-label{font-size:.7rem;font-weight:600;text-transform:uppercase;letter-spacing:.05em;color:var(--accent)}.annotation-editor .color-section{display:flex;flex-direction:column;gap:6px}.annotation-editor .color-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}.annotation-editor .color-inputs{display:flex;flex-wrap:wrap;gap:6px;min-width:200px}.annotation-editor .color-inputs input[type=text]{flex:1 1 120px;font-family:JetBrains Mono,Fira Code,monospace}.annotation-editor .color-hint{font-size:.7rem;color:var(--muted);line-height:1.3}.annotation-editor .editor-badge{align-self:flex-start;font-size:.7rem;font-weight:600;letter-spacing:.08em;text-transform:uppercase;background:#5eead433;color:var(--accent);border-radius:999px;padding:4px 10px}.annotation-editor.editing .editor-badge{background:var(--accent);color:#061111;box-shadow:0 4px 12px #5eead459}.annotation-editor .color-hint code{background:#5eead41a;padding:0 4px;border-radius:4px}.annotation-editor .editor-actions{display:flex;gap:6px;justify-content:flex-start}.annotation-editor .editor-actions .action-primary{margin-left:auto}.btn-delete{background:var(--danger);color:#fff;padding:6px 10px;border-radius:6px;cursor:pointer;border:none;font-size:.9rem}.btn-delete:hover{opacity:.8}.empty{display:flex;justify-content:center;align-items:center}.empty-text{color:var(--muted);font-size:1rem;text-align:center;max-width:400px}