*,*:before,*:after{box-sizing:border-box;margin:0;padding:0}:root{--color-bg: #f5f7fa;--color-surface: #ffffff;--color-border: #d1d5db;--color-primary: #2563eb;--color-primary-hover: #1d4ed8;--color-danger: #dc2626;--color-warning: #d97706;--color-success: #16a34a;--color-text: #111827;--color-muted: #6b7280;--radius: 8px;--shadow: 0 1px 3px rgba(0, 0, 0, .1), 0 1px 2px rgba(0, 0, 0, .06);--font: "Inter", system-ui, -apple-system, sans-serif}html{font-family:var(--font);color:var(--color-text);background:var(--color-bg)}body{min-height:100vh}.app{display:flex;flex-direction:column;min-height:100vh}.container{max-width:720px;margin:0 auto;padding:0 1rem;width:100%}main.container{padding-top:2rem;padding-bottom:4rem}.header{background:var(--color-surface);border-bottom:1px solid var(--color-border)}.header-inner{display:flex;align-items:center;justify-content:space-between;height:56px}.header-brand{display:flex;align-items:center;gap:.5rem}.header-logo{font-size:1.25rem}.header-title{font-weight:700;font-size:1.1rem}.card{background:var(--color-surface);border:1px solid var(--color-border);border-radius:var(--radius);padding:1.75rem;box-shadow:var(--shadow);margin-top:1.5rem}.card h2{font-size:1.25rem;font-weight:700;margin-bottom:1.25rem}.import-form{display:flex;flex-direction:column;gap:1rem}.import-form label{display:flex;flex-direction:column;gap:.35rem;font-size:.875rem;font-weight:500}.import-form select,.import-form input[type=file]{padding:.5rem .75rem;border:1px solid var(--color-border);border-radius:var(--radius);font-size:.95rem;background:var(--color-bg)}.import-form select:focus,.import-form input:focus{outline:2px solid var(--color-primary);border-color:transparent}.btn{display:inline-flex;align-items:center;justify-content:center;padding:.55rem 1.25rem;border-radius:var(--radius);font-size:.9rem;font-weight:600;cursor:pointer;border:1px solid var(--color-border);background:var(--color-surface);color:var(--color-text);transition:background .15s,border-color .15s}.btn:hover{background:var(--color-bg);border-color:#9ca3af}.btn:disabled{opacity:.5;cursor:not-allowed}.btn-primary{background:var(--color-primary);color:#fff;border-color:var(--color-primary)}.btn-primary:hover{background:var(--color-primary-hover);border-color:var(--color-primary-hover)}.btn-secondary{background:transparent;color:var(--color-muted)}.progress-bar{height:8px;background:var(--color-bg);border-radius:99px;border:1px solid var(--color-border);overflow:hidden;margin:1rem 0}.progress-fill{height:100%;background:var(--color-primary);transition:width .3s ease;border-radius:99px}.spinner{width:32px;height:32px;margin:1rem auto;border:3px solid var(--color-border);border-top-color:var(--color-primary);border-radius:50%;animation:spin .8s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-msg{color:var(--color-danger);font-size:.875rem}.status-msg{color:var(--color-muted);font-size:.9rem}.hint{font-size:.8rem;color:var(--color-muted)}.disclaimer{font-size:.8rem;color:var(--color-muted);margin-top:1rem;padding:.75rem;background:#fefce8;border:1px solid #fde68a;border-radius:var(--radius)}.error-card h2{color:var(--color-danger)}.results-card h2{font-size:1.35rem}.meta{font-size:.85rem;color:var(--color-muted);margin-bottom:1.5rem}.pit-section{margin-bottom:1.5rem}.pit-section h3{font-size:1rem;font-weight:600;margin-bottom:.75rem;padding-bottom:.4rem;border-bottom:1px solid var(--color-border)}.pit-table{width:100%;border-collapse:collapse;font-size:.9rem}.pit-table td{padding:.45rem .35rem;border-bottom:1px solid #f3f4f6}.pit-table td:first-child{color:var(--color-muted);width:4rem}.pit-table td.value{text-align:right;font-variant-numeric:tabular-nums;font-weight:600}.pit-table td.highlight{color:var(--color-success)}.pit-table td.warn{color:var(--color-warning)}.actions{display:flex;flex-wrap:wrap;gap:.75rem;margin-top:1.5rem}