.app-detail-main { flex: 1; padding: 116px 24px 104px; }
.app-detail-container { width: min(100%, 760px); margin: 0 auto; }
.app-detail-heading { margin-bottom: 24px; display: flex; align-items: center; gap: 10px; }
.app-detail-title { min-width: 0; }
.app-detail-title h1 { font-size: 1.35rem; font-weight: 650; }
.app-detail-back { width: 34px; height: 34px; flex: 0 0 auto; display: inline-flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text-secondary); background: var(--surface); }
.app-detail-back:hover { border-color: var(--primary); color: var(--primary); background: var(--primary-soft); }
.app-detail-back:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
.app-detail-back svg { width: 18px; height: 18px; }
.tool-card { min-height: 540px; display: flex; flex-direction: column; border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; background: var(--surface); }
.tool-body { min-height: 0; flex: 1; padding: 28px; display: flex; flex-direction: column; justify-content: center; }
.tool-body > * { width: 100%; }
.tool-btn { min-height: 40px; padding: 0 18px; border: 1px solid transparent; border-radius: var(--radius-sm); font: inherit; font-size: 0.85rem; font-weight: 600; cursor: pointer; }
.tool-btn-primary { border-color: var(--primary); color: var(--on-primary); background: var(--primary); }
.tool-btn-primary:hover { background: var(--primary-dark); }
.tool-btn-secondary { border-color: var(--border); color: var(--text); background: var(--bg-secondary); }
.tool-btn-secondary:hover { background: var(--bg-tertiary); }

@media (max-width: 768px) {
    .app-detail-main { padding: 88px 12px calc(96px + env(safe-area-inset-bottom)); }
    .app-detail-heading { margin-bottom: 16px; }
    .app-detail-title h1 { font-size: 1.1rem; }
    .tool-card { min-height: 520px; }
    .tool-body { padding: 20px 14px; }
}

.schulte-grid-wrapper { position: relative; max-width: 280px; margin: 0 auto; }
.schulte-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 8px; max-width: 280px; margin: 0 auto; }
.schulte-cell { aspect-ratio: 1; display: flex; align-items: center; justify-content: center; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--text); background: var(--bg-secondary); font-size: 1.25rem; font-weight: 600; cursor: pointer; user-select: none; transition: color var(--transition), background-color var(--transition), border-color var(--transition), transform var(--transition); }
.schulte-cell:hover { background: var(--bg-tertiary); }
.schulte-cell.correct { border-color: var(--success); color: var(--success); background: color-mix(in srgb, var(--success) 16%, transparent); transform: scale(0.95); }
.schulte-cell.wrong { border-color: var(--danger); color: var(--danger); background: color-mix(in srgb, var(--danger) 16%, transparent); animation: schulteShake 0.3s ease; }
.schulte-overlay { position: absolute; inset: 0; z-index: 10; display: flex; align-items: center; justify-content: center; border-radius: var(--radius-sm); color: white; background: rgba(15, 23, 42, 0.62); font-size: 1rem; font-weight: 600; cursor: pointer; -webkit-backdrop-filter: blur(8px); backdrop-filter: blur(8px); transition: opacity var(--transition); }
.schulte-overlay.hidden { opacity: 0; pointer-events: none; }
.schulte-info { display: flex; justify-content: center; gap: 24px; margin-bottom: 20px; }
.schulte-stat { text-align: center; }
.schulte-stat-value { color: var(--text); font-size: 1.5rem; font-weight: 700; }
.schulte-stat-label { color: var(--text-muted); font-size: 0.8rem; }
.schulte-controls { display: flex; justify-content: center; margin-top: 20px; }

@keyframes schulteShake { 0%, 100% { transform: translateX(0); } 25% { transform: translateX(-4px); } 75% { transform: translateX(4px); } }

@media (prefers-reduced-motion: reduce) {
    .schulte-cell { animation: none; transition: none; }
}