/* ════════════════════════════════════════════════
   Keyboard Shortcuts Help Modal
   ════════════════════════════════════════════════ */

/* Overlay */
.kbhelp-overlay {
    position: fixed;
    inset: 0;
    z-index: 10000;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(6px);
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    transition: opacity 0.2s ease;
}
.kbhelp-overlay.kbhelp-visible {
    opacity: 1;
}

/* Modal */
.kbhelp-modal {
    background: #12122a;
    border: 1px solid rgba(139, 92, 246, 0.2);
    border-radius: 20px;
    width: 90%;
    max-width: 560px;
    max-height: 80vh;
    display: flex;
    flex-direction: column;
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.6), 0 0 0 1px rgba(139, 92, 246, 0.1);
    transform: scale(0.95) translateY(10px);
    transition: transform 0.2s ease;
}
.kbhelp-visible .kbhelp-modal {
    transform: scale(1) translateY(0);
}

/* Header */
.kbhelp-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 24px 16px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.kbhelp-title {
    font-size: 18px;
    font-weight: 700;
    color: #f1f1f1;
    margin: 0;
}
.kbhelp-close {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.04);
    color: #888;
    font-size: 18px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.15s;
}
.kbhelp-close:hover {
    background: rgba(255, 255, 255, 0.08);
    color: #fff;
}

/* Body */
.kbhelp-body {
    padding: 16px 24px;
    overflow-y: auto;
    flex: 1;
    scrollbar-width: thin;
    scrollbar-color: rgba(139, 92, 246, 0.3) transparent;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
}
@media (max-width: 500px) {
    .kbhelp-body { grid-template-columns: 1fr; }
}

/* Section */
.kbhelp-section {
    display: flex;
    flex-direction: column;
    gap: 8px;
}
.kbhelp-section-title {
    font-size: 12px;
    font-weight: 700;
    color: #a78bfa;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin: 0 0 4px;
}

/* Shortcut rows */
.kbhelp-list {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.kbhelp-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    padding: 5px 0;
}
.kbhelp-keys {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-shrink: 0;
}
.kbhelp-kbd {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 24px;
    height: 24px;
    padding: 0 7px;
    border-radius: 6px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    background: rgba(255, 255, 255, 0.06);
    color: #e2e8f0;
    font-size: 11px;
    font-weight: 600;
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    white-space: nowrap;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
}
.kbhelp-plus {
    font-size: 10px;
    color: #555;
    margin: 0 1px;
}
.kbhelp-desc {
    font-size: 12px;
    color: #999;
    text-align: right;
    line-height: 1.3;
}

/* Footer */
.kbhelp-footer {
    padding: 12px 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    font-size: 12px;
    color: #555;
}
.kbhelp-footer .kbhelp-kbd {
    font-size: 10px;
    height: 20px;
    min-width: 20px;
    padding: 0 5px;
}

/* ── Light mode ── */
html.light-mode .kbhelp-overlay {
    background: rgba(0, 0, 0, 0.3);
}
html.light-mode .kbhelp-modal {
    background: #fff;
    border-color: rgba(109, 40, 217, 0.15);
    box-shadow: 0 24px 64px rgba(0, 0, 0, 0.15), 0 0 0 1px rgba(109, 40, 217, 0.08);
}
html.light-mode .kbhelp-title { color: #1e1b4b; }
html.light-mode .kbhelp-header { border-bottom-color: rgba(0, 0, 0, 0.06); }
html.light-mode .kbhelp-close {
    border-color: rgba(0, 0, 0, 0.08);
    background: rgba(0, 0, 0, 0.03);
    color: #9ca3af;
}
html.light-mode .kbhelp-close:hover {
    background: rgba(0, 0, 0, 0.06);
    color: #374151;
}
html.light-mode .kbhelp-section-title { color: #7c3aed; }
html.light-mode .kbhelp-kbd {
    border-color: rgba(0, 0, 0, 0.12);
    background: rgba(0, 0, 0, 0.04);
    color: #374151;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.06);
}
html.light-mode .kbhelp-desc { color: #6b7280; }
html.light-mode .kbhelp-footer { border-top-color: rgba(0, 0, 0, 0.06); color: #9ca3af; }