/* ============================================
   Keyboard Shortcuts Styles - Cyberpunk Fairy
   Help overlay and trigger button
   ============================================ */

/* Floating Trigger Button — Aurora-native (v4) */
.keyboard-shortcuts-trigger {
    position: fixed;
    bottom: var(--alva-dock-offset-y, 24px);
    left: var(--alva-dock-offset-x, 24px);
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--surface);
    color: var(--primary-strong);
    border: 1px solid var(--border);
    box-shadow: 0 2px 6px rgb(0, 0, 0, 0.08); /* design-spec: singular kbd key subtle lift */
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    transition: border-color var(--t-fast, 0.15s) var(--ease-out, ease-out),
                box-shadow var(--t-fast, 0.15s) var(--ease-out, ease-out),
                color var(--t-fast, 0.15s) var(--ease-out, ease-out);
    z-index: calc(var(--alva-z) - 10);
}
.keyboard-shortcuts-trigger:hover,
.keyboard-shortcuts-trigger:focus-visible {
    color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-tint), 0 2px 8px rgb(0, 0, 0, 0.1); /* design-spec: kbd focus ring composite */
    outline: none;
}

/* Collision-avoidance: when Alva-Dock occupies the same corner, stack the
   keyboard trigger above Alva with a vertical offset. Uses :has() which is
   supported in all evergreen browsers (Safari 15.4+, Chrome 105+, FF 121+). */
body:has(.fa-alva-dock--pos-bottom-left) .keyboard-shortcuts-trigger {
    bottom: calc(var(--alva-dock-offset-y, 24px) + 96px);
}

/* Modal */
.keyboard-shortcuts-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgb(0, 0, 0, 0); /* design-spec: transparent reset for keyboard overlay start state */
    display: none;
    align-items: center;
    justify-content: center;
    padding: 24px;
    z-index: var(--z-overlay);
    transition: background 0.2s ease;
}

.keyboard-shortcuts-modal.keyboard-shortcuts-open {
    display: flex;
    background: rgb(15, 23, 42, 0.8);
    backdrop-filter: blur(8px);
}

/* Container - Cyberpunk Fairy */
.keyboard-shortcuts-container {
    background: var(--surface);
    border-radius: var(--r-xl);
    box-shadow: 0 20px 60px rgb(0, 0, 0, 0.4), 0 0 40px var(--primary-glow); /* design-spec: keyboard shortcuts overlay premium shadow with glow */
    border: 2px solid var(--primary);
    width: 900px;
    max-width: 90vw;
    max-height: 85vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: slideInUp 0.2s ease;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Header */
.keyboard-shortcuts-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 24px 32px;
    border-bottom: 1px solid var(--border);
}

.keyboard-shortcuts-header h2 {
    margin: 0;
    font-size: 24px;
    font-weight: 600;
    color: var(--fg);
    display: flex;
    align-items: center;
    gap: 12px;
}

.modal-close {
    background: none;
    border: none;
    width: 32px;
    height: 32px;
    border-radius: var(--r-sm);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--fg-3);
    transition: all 0.2s ease;
}

.modal-close:hover {
    background: var(--bg);
    color: var(--fg);
}

.modal-close i {
    font-size: 24px;
}

/* Content */
.keyboard-shortcuts-content {
    flex: 1;
    overflow-y: auto;
    padding: 32px;
}

/* Grid */
.keyboard-shortcuts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 32px;
}

/* Category */
.keyboard-shortcuts-category h4 {
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--fg-3);
    margin: 0 0 16px;
}

.keyboard-shortcuts-category dl {
    margin: 0;
}

/* Item */
.keyboard-shortcuts-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid var(--border);
}

.keyboard-shortcuts-item:last-child {
    border-bottom: none;
}

.keyboard-shortcuts-item dt {
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: normal;
}

.keyboard-shortcuts-item dd {
    margin: 0;
    color: var(--fg-2);
    font-size: 14px;
    text-align: right;
}

/* Keyboard Key */
kbd {
    background: linear-gradient(to bottom, var(--surface), var(--bg));
    border: 1px solid var(--border);
    border-radius: var(--r-sm);
    box-shadow: 0 2px 0 rgb(0, 0, 0, 0.1); /* design-spec: keycap underside press effect */
    padding: 4px 8px;
    font-size: 12px;
    font-weight: 600;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", monospace;
    color: var(--fg);
    display: inline-block;
    min-width: 24px;
    text-align: center;
}

.keyboard-shortcuts-item .then {
    font-size: 11px;
    color: var(--fg-3);
    font-style: italic;
}

/* Footer */
.keyboard-shortcuts-footer {
    padding: 16px 32px;
    border-top: 1px solid var(--border);
    background: var(--bg);
}

.keyboard-shortcuts-footer p {
    margin: 0;
    font-size: 13px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.keyboard-shortcuts-footer i {
    color: var(--warning);
}

/* Scrollbar */
.keyboard-shortcuts-content::-webkit-scrollbar {
    width: 8px;
}

.keyboard-shortcuts-content::-webkit-scrollbar-track {
    background: transparent;
}

.keyboard-shortcuts-content::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: var(--r-sm);
}

.keyboard-shortcuts-content::-webkit-scrollbar-thumb:hover {
    background: var(--fg-3);
}

/* Responsive */
@media (max-width: 767.98px) {
    .keyboard-shortcuts-grid {
        grid-template-columns: 1fr;
        gap: 24px;
    }

    .keyboard-shortcuts-trigger {
        bottom: 16px;
        left: 16px;
    }

    .keyboard-shortcuts-item {
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
    }

    .keyboard-shortcuts-item dd {
        text-align: left;
    }
}

@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}