.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; }
}

.memory-game { max-width: 520px; margin: 0 auto; }
.memory-stats { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-bottom: 16px; }
.memory-stat { min-width: 0; text-align: center; }
.memory-stat strong { display: block; color: var(--text); font-size: 1.25rem; font-weight: 700; line-height: 1.25; font-variant-numeric: tabular-nums; }
.memory-stat span { display: block; margin-top: 2px; color: var(--text-muted); font-size: 0.76rem; }
.memory-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 8px; }
.memory-difficulty { display: inline-flex; padding: 3px; border: 1px solid var(--border); border-radius: var(--radius-sm); background: var(--bg-secondary); }
.memory-difficulty button { min-width: 64px; height: 32px; padding: 0 10px; border: none; border-radius: 4px; color: var(--text-secondary); background: transparent; font: inherit; font-size: 0.78rem; cursor: pointer; }
.memory-difficulty button[aria-pressed="true"] { color: var(--primary-dark); background: var(--surface); box-shadow: var(--shadow-sm); }
[data-theme="dark"] .memory-difficulty button[aria-pressed="true"] { color: var(--primary); }
.memory-difficulty button:focus-visible { outline: 2px solid var(--primary); outline-offset: 1px; }
.memory-restart { display: inline-flex; align-items: center; gap: 7px; white-space: nowrap; }
.memory-restart svg { width: 16px; height: 16px; }
.memory-status { min-height: 1.4em; margin: 6px 0 10px; color: var(--text-secondary); font-size: 0.8rem; text-align: center; }
.memory-board { width: min(100%, 460px); aspect-ratio: 1; display: grid; grid-template-columns: repeat(var(--memory-size), minmax(0, 1fr)); grid-template-rows: repeat(var(--memory-size), minmax(0, 1fr)); gap: clamp(4px, 1.5%, 8px); margin: 0 auto; }
.memory-card { position: relative; min-width: 0; min-height: 0; padding: 0; border: 1px solid var(--border); border-radius: var(--radius-sm); color: var(--primary-dark); background: var(--bg-secondary); cursor: pointer; overflow: hidden; }
.memory-card:hover:not(.is-flipped) { border-color: var(--border-strong); background: var(--bg-tertiary); }
.memory-card:focus-visible { z-index: 1; outline: 2px solid var(--primary); outline-offset: 2px; }
.memory-card-back, .memory-card-face { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; transition: opacity var(--transition), transform var(--transition); }
.memory-card-back::before { content: '?'; color: var(--text-muted); font-size: clamp(0.8rem, 3vw, 1.2rem); font-weight: 650; }
.memory-card-face { opacity: 0; transform: scale(0.72); color: var(--primary-dark); background: var(--surface); }
.memory-card-face svg { width: 42%; height: 42%; }
.memory-card.is-flipped .memory-card-back { opacity: 0; transform: scale(0.72); }
.memory-card.is-flipped .memory-card-face { opacity: 1; transform: scale(1); }
.memory-card.is-matched { border-color: color-mix(in srgb, var(--success) 55%, var(--border)); }
.memory-card.is-matched .memory-card-face { color: var(--success); background: color-mix(in srgb, var(--success) 10%, var(--surface)); }
[data-theme="dark"] .memory-card-face { color: var(--primary); }

@media (max-width: 520px) {
    .memory-toolbar { align-items: stretch; flex-direction: column; }
    .memory-difficulty { align-self: center; }
    .memory-restart { align-self: center; }
    .memory-board { width: min(100%, 380px); }
}

@media (prefers-reduced-motion: reduce) {
    .memory-card-back, .memory-card-face { transition: none; }
}