/* Settings Toolbar Button */
.settings-button {
    flex: none;
    align-self: center;
    width: auto;
    min-width: 54px;
    height: 38px;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 1px;
    padding: 2px 8px;
    border: 1px solid transparent;
    border-radius: 4px;
    background: transparent;
    color: #557487;
    font-size: 9px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.settings-button:hover,
.settings-button:focus-visible,
.settings-button.selected {
    outline: none;
    border-color: #cbe4f0;
    background: #edf8fc;
    color: #1576a8;
}

.settings-icon {
    font-family: "Segoe UI Symbol", "Segoe UI", sans-serif;
    font-size: 16px;
    line-height: 18px;
    color: #248dbd;
}

/* Modal Window Backdrop */
.modal-backdrop {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(18, 32, 45, 0.48);
    backdrop-filter: blur(2.5px);
    -webkit-backdrop-filter: blur(2.5px);
    animation: fadeInModal 0.15s ease-out;
}

.modal-backdrop[hidden] {
    display: none !important;
}

@keyframes fadeInModal {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Modal Window Container */
.modal-window {
    width: min(640px, calc(100vw - 32px));
    height: min(700px, calc(100vh - 48px));
    display: flex;
    flex-direction: column;
    background: #ffffff;
    border: 1px solid #b8d2e2;
    border-radius: 8px;
    box-shadow: 0 20px 48px rgba(15, 34, 51, 0.28), 0 4px 12px rgba(0, 0, 0, 0.08);
    overflow: hidden;
    animation: scaleInModal 0.15s ease-out;
}

@keyframes scaleInModal {
    from {
        transform: scale(0.97);
        opacity: 0.8;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

/* Modal Header */
.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 16px;
    background: #f2f6f9;
    border-bottom: 1px solid #d9e5ec;
    color: #334d5c;
    user-select: none;
}

.modal-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 700;
    color: #254050;
}

.modal-title-icon {
    font-size: 15px;
    color: #1e83b4;
}

.modal-close {
    border: 0;
    background: transparent;
    color: #7b94a3;
    font-size: 20px;
    line-height: 1;
    cursor: pointer;
    padding: 2px 6px;
    border-radius: 4px;
    transition: all 0.12s ease;
}

.modal-close:hover,
.modal-close:focus-visible {
    color: #bf2a2a;
    background: #faebeb;
    outline: none;
}

/* Modal Body: Sidebar + Main Content */
.modal-body {
    display: flex;
    flex: 1;
    min-height: 0;
    background: #ffffff;
}

/* Sidebar Categories */
.modal-sidebar {
    width: 175px;
    flex-shrink: 0;
    background: #f8fafc;
    border-right: 1px solid #dbe6ec;
    padding: 12px 8px;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.category-item {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 8px 12px;
    border: 1px solid transparent;
    border-radius: 5px;
    background: transparent;
    color: #4b6777;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    text-align: left;
    transition: all 0.12s ease;
}

.category-item:hover {
    background: #edf4f8;
    color: #186f99;
}

.category-item.is-active {
    background: #e2eef5;
    border-color: #b3d4e6;
    color: #0e638f;
    font-weight: 700;
}

.category-icon {
    font-size: 13px;
    line-height: 1;
    opacity: 0.85;
}

/* Content Area */
.modal-content {
    flex: 1;
    padding: 18px 24px;
    overflow-y: auto;
    background: #ffffff;
}

.settings-section[hidden] {
    display: none !important;
}

.section-title {
    margin: 0 0 14px;
    font-size: 13px;
    font-weight: 700;
    color: #243e4e;
    border-bottom: 1px solid #eef3f6;
    padding-bottom: 8px;
}

.settings-group {
    display: flex;
    flex-direction: column;
}

.setting-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 10px 0;
    border-bottom: 1px solid #f0f4f7;
}

.setting-row:last-child {
    border-bottom: none;
}

.setting-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.setting-label {
    font-size: 11px;
    font-weight: 600;
    color: #2a4555;
}

.setting-desc {
    font-size: 9.5px;
    color: #7b92a0;
}

.setting-control {
    flex-shrink: 0;
}

.setting-badge {
    display: inline-block;
    padding: 3px 8px;
    border: 1px solid #d4e4ed;
    border-radius: 4px;
    background: #f4f8fb;
    color: #1d698e;
    font-family: Consolas, monospace;
    font-size: 10px;
    font-weight: 700;
}

.settings-select {
    padding: 4px 8px;
    border: 1px solid #c2dae8;
    border-radius: 4px;
    background: #f7fafc;
    color: #1b6388;
    font-family: inherit;
    font-size: 10px;
    font-weight: 700;
    cursor: pointer;
    outline: none;
    transition: all 0.15s ease;
}

.settings-select:hover,
.settings-select:focus-visible {
    border-color: #218cb8;
    background: #ffffff;
    color: #0f5578;
}

/* Modal Footer */
.modal-footer {
    display: flex;
    justify-content: flex-end;
    padding: 10px 16px;
    background: #f5f8fa;
    border-top: 1px solid #dbe6ec;
}

.modal-btn {
    padding: 5px 18px;
    border-radius: 4px;
    font-size: 11px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
}

.modal-btn-primary {
    background: #1e83b4;
    border: 1px solid #166e99;
    color: #ffffff;
}

.modal-btn-primary:hover,
.modal-btn-primary:focus-visible {
    background: #17719c;
    border-color: #12597d;
    outline: none;
}

.shortcut-row { padding: 6px 0; }
.shortcut-input {
    width: 44px;
    padding: 4px;
    border: 1px solid #c2dae8;
    border-radius: 4px;
    background: #f7fafc;
    color: #1b6388;
    text-align: center;
    font: 700 11px Consolas, monospace;
    cursor: pointer;
}
.shortcut-input:focus { outline: 2px solid #55a6c9; background: #fff; }
.shortcut-message { min-height: 16px; margin: 8px 0; font-size: 10px; color: #2d718e; }
.shortcut-reset { border: 1px solid #c2dae8; background: #f7fafc; color: #1b6388; }