:root{font-family:Noto Sans JP,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif;color:#1f2937;background-color:#f8fafc;line-height:1.5}*{box-sizing:border-box}body{margin:0;min-height:100vh}a{color:inherit}button{font:inherit}#root{min-height:100vh}.app-shell{display:flex;flex-direction:column;min-height:100vh;padding:1.5rem;gap:1.25rem}.card{background:#fff;border-radius:16px;box-shadow:0 8px 24px #0f172a14;padding:1.25rem}.section-title{display:flex;align-items:center;gap:.5rem;margin:0 0 .75rem}.section-title small{color:#6b7280;font-weight:500}.input-grid{display:grid;gap:.75rem}.text-input,.select-input{width:100%;padding:.9rem 1rem;border-radius:12px;border:1px solid #e5e7eb;background:#fff;font-size:1rem}.text-input:focus,.select-input:focus{outline:3px solid #dbeafe;border-color:#60a5fa}.primary-button,.secondary-button,.ghost-button{padding:.9rem 1.05rem;border-radius:12px;border:none;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease,background .16s ease;font-weight:700}.primary-button{background:linear-gradient(135deg,#2563eb,#3b82f6);color:#fff;box-shadow:0 10px 18px #2563eb33}.primary-button:hover{transform:translateY(-1px)}.primary-button:disabled,.secondary-button:disabled,.ghost-button:disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}.secondary-button{background:#fff;color:#1f2937;border:1px solid #e5e7eb}.ghost-button{background:transparent;border:1px dashed #cbd5e1;color:#1f2937}.status-pill{display:inline-flex;align-items:center;gap:.4rem;padding:.4rem .75rem;background:#e0f2fe;color:#0ea5e9;border-radius:9999px;font-weight:700;font-size:.95rem}.status-pill.idle{background:#f3f4f6;color:#4b5563}.status-pill.buzzing{background:#fef9c3;color:#ca8a04}.status-pill.showing_result{background:#dcfce7;color:#16a34a}.list{list-style:none;padding:0;margin:0;display:grid;gap:.6rem}.player-row,.rank-row{display:flex;align-items:center;justify-content:space-between;gap:.75rem;padding:.7rem .9rem;background:#f8fafc;border-radius:12px}.rank-row.self,.player-row.self{border:1px solid #3b82f6;box-shadow:0 4px 12px #3b82f614}.rank-badge,.player-badge{min-width:2.6rem;height:2.6rem;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;font-weight:800;color:#1f2937;background:#fff;border:1px solid #e5e7eb}.rank-badge.first{background:linear-gradient(135deg,#facc15,#f59e0b);color:#1f2937}.host-label{font-size:.85rem;color:#0ea5e9;font-weight:700}.buzzer-button{width:100%;min-height:220px;border-radius:24px;border:none;background:radial-gradient(circle at 20% 20%,#fda4af,#ef4444 55%,#991b1b);color:#fff;font-size:1.7rem;font-weight:800;letter-spacing:.02em;box-shadow:0 18px 40px #ef444459;cursor:pointer;transition:transform .12s ease,box-shadow .12s ease}.buzzer-button:active:not(:disabled){transform:translateY(4px);box-shadow:0 14px 24px #ef444440}.buzzer-button:disabled{opacity:.55;cursor:not-allowed;box-shadow:none}.winner-burst{animation:pulse-bg .9s ease-in-out infinite alternate}@keyframes pulse-bg{0%{box-shadow:0 0 #3b82f633;background-color:#ecfeff}to{box-shadow:0 0 0 14px #3b82f605;background-color:#dbeafe}}@media (min-width: 840px){.two-column{display:grid;grid-template-columns:1.1fr .9fr;gap:1rem;align-items:start}}@media (max-width: 520px){.app-shell{padding:1rem}.buzzer-button{min-height:180px;font-size:1.5rem}}