:root{--font-base: 18px;--bg-color: #f8fafc;--text-color: #0f172a;--card-bg: #ffffff;--border-color: #475569;--focus-ring: #005fcc;--primary-btn: #0f172a;--primary-btn-text: #ffffff;--secondary-btn: #f1f5f9;--secondary-btn-text: #0f172a;--caption-bg: #f0f9ff;--caption-text: #0c4a6e;--caption-border: #0284c7}body.high-contrast{--bg-color: #000000;--text-color: #ffffff;--card-bg: #121212;--border-color: #ffff00;--focus-ring: #00ffff;--primary-btn: #ffff00;--primary-btn-text: #000000;--secondary-btn: #000000;--secondary-btn-text: #ffffff;--caption-bg: #1e293b;--caption-text: #ffff00;--caption-border: #ffff00}body.font-large{--font-base: 22px}body.font-xlarge{--font-base: 26px}*,*:before,*:after{box-sizing:border-box}body{font-family:system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Oxygen,Ubuntu,Cantarell,sans-serif;font-size:var(--font-base);line-height:1.6;background-color:var(--bg-color);color:var(--text-color);margin:0;padding:0;min-height:100vh}.skip-link{position:absolute;top:-100px;left:12px;background:var(--focus-ring);color:#fff;padding:12px 18px;font-size:1.125rem;font-weight:700;text-decoration:underline;z-index:10000;border-radius:4px}.skip-link:focus{top:12px;outline:3px solid #ffffff;outline-offset:2px}:focus-visible{outline:3px solid var(--focus-ring);outline-offset:3px}.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}button,input,select,textarea,a.nav-link{font-size:1rem;min-height:44px;min-width:44px;padding:10px 16px;border-radius:6px;font-family:inherit}button{cursor:pointer;display:inline-flex;align-items:center;justify-content:center;gap:.5rem;touch-action:manipulation}.app-header{border-bottom:2px solid var(--border-color);background:var(--card-bg);padding:1rem}.header-inner{max-width:1100px;margin:0 auto;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem}.header-inner h1{margin:0;font-size:1.6rem}.nav-toolbar{display:flex;align-items:center;flex-wrap:wrap;gap:.75rem}main{max-width:1100px;margin:1.5rem auto;padding:0 1rem}.card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:8px;padding:1.5rem;margin-bottom:1.5rem}.btn-primary{background:var(--primary-btn);color:var(--primary-btn-text);font-weight:700;border:2px solid var(--border-color)}.btn-secondary{background:var(--secondary-btn);color:var(--secondary-btn-text);font-weight:600;border:2px solid var(--border-color)}.recording-active{background-color:#dc2626!important;color:#fff!important;border-color:#b91c1c!important;animation:pulse-rec 1.2s infinite}@keyframes pulse-rec{0%{transform:scale(1);box-shadow:0 0 #dc2626b3}70%{transform:scale(1.03);box-shadow:0 0 0 10px #dc262600}to{transform:scale(1);box-shadow:0 0 #dc262600}}.btn-danger{background:#991b1b;color:#fff;font-weight:600;border:2px solid #7f1d1d}.nav-link{color:var(--text-color);text-decoration:underline;font-weight:600;display:inline-flex;align-items:center}.form-group{margin-bottom:1.25rem;display:flex;flex-direction:column;gap:.35rem}.form-group label{font-weight:700}.form-group input,.form-group select,.form-group textarea{border:2px solid var(--border-color);background:var(--card-bg);color:var(--text-color)}.button-row{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1rem}.planner-toolbar{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:1rem;margin-bottom:1.25rem}.planner-toolbar h2{margin:0}.date-selector{display:flex;align-items:center;gap:.5rem}.controls-card{background:var(--card-bg);border:2px solid var(--border-color);border-radius:8px;padding:1rem;margin-bottom:1.25rem;display:flex;flex-wrap:wrap;gap:.75rem;align-items:center}.caption-box{background:var(--caption-bg);color:var(--caption-text);border:2px solid var(--caption-border);padding:.85rem 1.25rem;border-radius:6px;margin-bottom:1.25rem;font-weight:600}.caption-box p{margin:0}.activity-linear-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:1rem}.activity-linear-item{background:var(--card-bg);border:2px solid var(--border-color);border-radius:8px;padding:1.25rem;transition:transform .1s ease}.activity-linear-item.done-item{border-left:8px solid #16a34a;background-color:var(--secondary-btn)}.activity-linear-item p.sentence-text{font-size:1.15rem;font-weight:600;margin:0 0 1rem}.item-actions{display:flex;flex-wrap:wrap;gap:.5rem}.focus-modal{position:fixed;top:0;right:0;bottom:0;left:0;background:var(--bg-color);color:var(--text-color);display:flex;flex-direction:column;justify-content:center;align-items:center;padding:2rem;z-index:9999;border:4px solid var(--focus-ring)}.focus-card-body{max-width:900px;width:100%;text-align:center;background:var(--card-bg);border:3px solid var(--border-color);border-radius:12px;padding:2.5rem}.focus-sentence-text{font-size:2rem;font-weight:800;line-height:1.4;margin-bottom:2.5rem}.focus-action-buttons{display:flex;justify-content:center;flex-wrap:wrap;gap:1rem}dialog{border:3px solid var(--border-color);border-radius:8px;background:var(--card-bg);color:var(--text-color);padding:2rem;max-width:550px;width:90vw}dialog::backdrop{background:#000000b3}kbd{display:inline-block;padding:2px 6px;font-size:.85em;font-family:monospace;background-color:var(--secondary-btn);color:var(--text-color);border:1px solid var(--border-color);border-radius:4px}table{width:100%;border-collapse:collapse;margin:1.5rem 0}th,td{border:2px solid var(--border-color);padding:12px;text-align:left}th{background-color:var(--secondary-btn);color:var(--secondary-btn-text);font-weight:700}