:root{--bg: #fafafa;--card-bg: #ffffff;--text: #1a1a1a;--text-muted: #6b6b6b;--border: #e0e0e0;--accent: #1a1a1a;--success: #2d2d2d;--warning: #4a4a4a;--radius: 12px;--radius-sm: 8px;color-scheme:light;font-family:Inter,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}body{margin:0;font-family:inherit;background:var(--bg);color:var(--text);min-height:100vh}*{box-sizing:border-box}.container{max-width:1100px;margin:0 auto;padding:48px 24px 80px}header{text-align:center;margin-bottom:32px}h1{margin:0;font-size:2.5rem;letter-spacing:.04em;font-weight:600}.subtitle{margin:12px 0 0;color:var(--text-muted);font-size:1rem}.mode-switch{display:inline-flex;background:var(--card-bg);border:1px solid var(--border);border-radius:999px;padding:4px}.mode-button{border:none;background:transparent;color:var(--text-muted);font-size:.95rem;padding:10px 22px;border-radius:999px;cursor:pointer;transition:all .2s ease}.mode-button.active{background:var(--accent);color:#fff;font-weight:600}.mode-button:hover:not(.active){color:var(--text)}.mode-section{margin-top:32px;opacity:0;transform:translateY(10px);transition:all .25s ease}.mode-section.show{opacity:1;transform:translateY(0)}.card{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:28px;box-shadow:0 6px 18px #1218200f}.card-title{font-size:1.15rem;font-weight:600;margin-bottom:18px;color:var(--text-muted)}.input-group{display:grid;grid-template-columns:repeat(auto-fit,minmax(190px,1fr));gap:18px;align-items:end}.field{display:flex;flex-direction:column}.field label{font-size:.85rem;color:var(--text-muted);margin-bottom:8px;letter-spacing:.02em}.field input,.field select{background:var(--card-bg);border:1px solid var(--border);border-radius:var(--radius-sm);padding:12px 14px;color:var(--text);font-size:.95rem;transition:border .2s ease,box-shadow .2s ease}.field input:focus,.field select:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px #0000000a}.btn{background:var(--accent);color:#fff;border:none;border-radius:var(--radius-sm);padding:14px 20px;font-size:.95rem;font-weight:600;cursor:pointer;transition:transform .15s ease,box-shadow .15s ease;display:inline-flex;justify-content:center;align-items:center;min-width:160px}.btn:hover{transform:translateY(-2px);box-shadow:0 8px 20px #1a1a1a1f}.btn:disabled{opacity:.7;cursor:wait;transform:none;box-shadow:none}.btn-spinner{width:15px;height:15px;border:2px solid rgba(4,17,36,.3);border-top-color:#041124cc;border-radius:50%;animation:spin .7s linear infinite}@keyframes spin{to{transform:rotate(360deg)}}.error-message,.forward-error{background:#fff6f6;border:1px solid #f5c2c2;color:#991b1b;border-radius:var(--radius-sm);padding:12px 16px;margin-bottom:18px;font-size:.9rem}.error-message.show,.forward-error.show{display:block}.advanced-toggle{margin-top:22px;font-size:.88rem;color:var(--text-muted);display:inline-flex;align-items:center;gap:8px;cursor:pointer;-webkit-user-select:none;user-select:none}.chevron{transition:transform .2s ease}.chevron.rotated{transform:rotate(180deg)}.advanced-options{max-height:0;overflow:hidden;transition:max-height .25s ease}.advanced-options.show{max-height:500px;margin-top:18px}.help-text{font-size:.78rem;color:var(--text-muted);margin-top:6px}.results{display:grid;gap:24px}.model-stats{display:grid;grid-template-columns:repeat(auto-fit,minmax(150px,1fr));gap:18px}.stat{background:var(--card-bg);border-radius:14px;padding:16px;border:1px solid var(--border)}.stat-value{font-size:1.1rem;font-weight:600;color:var(--text)}.stat-label{margin-top:4px;font-size:.8rem;color:var(--text-muted)}.candidate{background:var(--card-bg);border:1px solid var(--border);border-radius:16px;padding:20px;margin-bottom:16px;transition:transform .2s ease,border .2s ease}.candidate:hover{transform:translateY(-3px);border-color:#0000000f}.candidate-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:10px}.candidate-rank{font-weight:600;font-size:1rem;color:var(--text)}.candidate-badges{display:flex;flex-wrap:wrap;gap:6px}.badge{display:inline-flex;align-items:center;justify-content:center;padding:4px 10px;border-radius:999px;font-size:.75rem;font-weight:600}.badge-valid{background:#66ddaa1f;color:#14532d}.badge-invalid{background:#ff9e8014;color:#7a2e1d}.badge-series{background:transparent;color:var(--text-muted);border:1px solid var(--border);padding:4px 10px}.candidate-prediction{font-size:1.5rem;font-weight:600;margin-bottom:6px;color:var(--text)}.candidate-error{color:#7ea2d6;font-size:.85rem;margin-bottom:14px}.composition-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(110px,1fr));gap:10px;margin-top:16px}.comp-item{background:var(--bg);border-radius:12px;padding:10px 12px;border:1px solid var(--border)}.comp-element{font-size:.8rem;color:var(--text-muted);text-transform:uppercase}.comp-value{font-size:1rem;font-weight:600;color:var(--text);margin-top:4px}.violations{margin-top:16px;background:#fff7ed;border:1px solid #ffe8cc;border-radius:12px;padding:12px 16px;color:#7a2e1d;font-size:.85rem}.violations-title{font-weight:600;margin-bottom:6px}.forward-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(200px,1fr));gap:18px;margin-bottom:20px}.section-heading{font-size:.95rem;font-weight:600;color:var(--text-muted);margin:22px 0 14px}.forward-result-card{background:var(--card-bg);border:1px solid var(--border);border-radius:18px;padding:24px;opacity:0;transform:translateY(12px);transition:all .25s ease}.forward-result-card.show{opacity:1;transform:translateY(0)}.forward-prediction-value{font-size:1.8rem;font-weight:600;color:var(--text);margin-bottom:12px}.forward-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px}.forward-summary{display:grid;grid-template-columns:repeat(auto-fit,minmax(160px,1fr));gap:12px;background:#f0f2f5;border-radius:14px;border:1px solid var(--border);padding:14px;margin-bottom:18px}.forward-summary-item{font-size:.82rem;color:var(--text)}.forward-summary-item strong{display:block;font-size:.78rem;text-transform:uppercase;letter-spacing:.05em;margin-bottom:4px;color:var(--text)}.empty-state{text-align:center;padding:16px;color:#7c97c1;font-size:.9rem}footer{text-align:center;color:#6f89b2;font-size:.78rem;margin-top:40px}@media (max-width: 720px){.container{padding:32px 18px 56px}h1{font-size:2rem}.card{padding:20px}.btn{width:100%;min-width:0}}