/* Grid Buttons (373-416) */
.layout-grid,
.tf-grid {
    display: grid;
    gap: 6px;
}

.tf-grid {
    grid-template-columns: repeat(3, 1fr);
}

.layout-grid {
    grid-template-columns: repeat(2, 1fr);
}

.grid-btn,
.tf-btn,
.layout-btn {
    padding: 8px;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 6px;
    text-align: center;
    cursor: pointer;
    font-size: 11px;
    font-weight: 600;
    transition: all 0.2s;
}

.grid-btn:hover,
.tf-btn:hover,
.layout-btn:hover {
    border-color: var(--accent) !important;
    color: var(--accent);
}

.grid-btn.active,
.tf-btn.active,
.layout-btn.active {
    background: rgba(52, 120, 255, 0.15) !important;
    color: #fff;
    border-color: var(--accent) !important;
}

/* Buttons (418-454) */
.btn {
    width: 100%;
    padding: 12px;
    border-radius: 10px;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 12px;
}

.btn:hover {
    transform: translateY(-1px);
    border-color: var(--accent) !important;
    box-shadow: 0 4px 12px var(--shadow);
}

.btn.buy {
    background: var(--success);
    color: white;
    border: none;
}

.btn.sell {
    background: var(--danger);
    color: white;
    border: none;
}

.btn.accent {
    background: rgba(52, 120, 255, 0.15) !important;
    color: white;
    border: none;
}

/* Checkboxes & Toggles (593-700) */
.check-container {
    display: block;
    position: relative;
    padding-left: 28px;
    margin-bottom: 8px;
    cursor: pointer;
    font-size: 12px;
    user-select: none;
    line-height: 18px;
}

.check-container input {
    position: absolute;
    opacity: 0;
    cursor: pointer;
    height: 0;
    width: 0;
    appearance: none;
    -webkit-appearance: none;
}

.checkmark {
    position: absolute;
    top: 0;
    left: 0;
    height: 18px;
    width: 18px;
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    border-radius: 4px;
    box-sizing: border-box;
    transition: all 0.2s;
}

.check-container:hover input~.checkmark {
    background-color: var(--surface);
    border-color: var(--accent) !important;
}

.check-container input:checked~.checkmark {
    background-color: var(--accent);
    border-color: var(--accent) !important;
}

.checkmark:after {
    content: "";
    position: absolute;
    display: none;
    left: 6px;
    top: 2px;
    width: 5px;
    height: 10px;
    border: solid white;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
}

.check-container input:checked~.checkmark:after {
    display: block;
}

.switch-toggle {
    position: relative;
    display: inline-block;
    width: 34px;
    height: 18px;
}

.switch-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.switch-slider {
    position: absolute;
    cursor: pointer;
    inset: 0;
    background-color: var(--input-bg);
    border: 1px solid var(--border);
    transition: .3s;
    border-radius: 18px;
}

.switch-slider:before {
    position: absolute;
    content: "";
    height: 12px;
    width: 12px;
    left: 2px;
    bottom: 2px;
    background-color: var(--text-dim);
    transition: .3s;
    border-radius: 50%;
}

input:checked+.switch-slider {
    background-color: rgba(52, 120, 255, 0.2);
    border-color: var(--accent) !important;
}

input:checked+.switch-slider:before {
    transform: translateX(16px);
    background-color: var(--accent);
}

/* Multi-Check (992-1053) */
.multi-check-label {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    font-size: 10px;
    font-weight: 600;
    padding: 8px 4px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    text-align: center;
}

.multi-check-label:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--text-dim);
}

.multi-check-label input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    width: 0;
    height: 0;
    margin: 0;
}

.multi-check-label:has(input:checked) {
    background: rgba(52, 120, 255, 0.15) !important;
    border-color: var(--accent) !important;
    color: white !important;
    box-shadow: 0 0 12px rgba(52, 120, 255, 0.2);
}

/* --- Light Mode Optimization (v3.7.1) --- */
[data-theme="light"] .multi-check-label:has(input:checked) {
    background: rgba(9, 105, 218, 0.1) !important;
    color: var(--accent) !important;
    font-weight: 800;
}

/* --- Light Mode Optimization (v3.7.1) --- */
[data-theme="light"] .multi-check-label:has(input:checked) {
    background: rgba(9, 105, 218, 0.1) !important;
    color: var(--accent) !important;
    font-weight: 800;
}

.multi-check-label:has(input:checked)::after {
    content: "check";
    font-family: 'Material Symbols Rounded';
    font-size: 11px;
    position: absolute;
    top: -6px;
    right: -6px;
    background: var(--accent) !important;
    color: white !important;
    border-radius: 50%;
    width: 18px;
    height: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.5);
    font-weight: 800;
}

/* Shortcuts (1621-1658) */
.shortcut-config-card-v2 {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 12px !important;
}

.shortcut-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 6px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.02);
}

.shortcut-row label {
    font-size: 11px;
    color: var(--text-dim);
}

.shortcut-row input {
    width: 80px !important;
    padding: 4px 8px !important;
    height: 24px !important;
    font-size: 10px !important;
    text-align: right;
    background: rgba(0, 0, 0, 0.2) !important;
    border: 1px solid var(--border) !important;
    border-radius: 4px !important;
}

.shortcut-row input:focus {
    border-color: var(--accent) !important;
}

/* ===== Theme Drawer ===== */
.theme-presets { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.theme-btn { display: flex; align-items: center; gap: 8px; padding: 8px 10px; border-radius: 6px;
             background: var(--surface); border: 1px solid var(--border); color: var(--text); cursor: pointer;
             font-size: 12px; transition: all 0.2s; }
.theme-btn:hover, .theme-btn.active { border-color: var(--accent); box-shadow: 0 0 0 1px var(--accent); }
.theme-preview { width: 18px; height: 18px; border-radius: 4px; display: inline-block; flex-shrink: 0; }
.dark-preview      { background: linear-gradient(135deg, #0d1117 50%, #26a69a 50%); }
.light-preview     { background: linear-gradient(135deg, #ffffff 50%, #26a69a 50%); border: 1px solid #ccc; }
.theme-custom-section { margin-top: 10px; font-size: 12px; color: var(--text); }
.theme-custom-section summary { cursor: pointer; padding: 6px 0; font-weight: 600; color: var(--text-dim); }
.theme-custom-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; }
.theme-custom-card { margin-top: 8px; display: flex; flex-direction: column; gap: 8px; }
.theme-custom-field { display: flex; align-items: center; justify-content: space-between; gap: 6px; min-height: 30px; padding: 0 2px; font-size: 11px; color: var(--text-dim); }
.theme-custom-field--full { grid-column: 1 / -1; align-items: flex-start; flex-direction: column; gap: 4px; }
.theme-toggle-field.theme-custom-field--full { display: flex; width: 100%; flex-direction: row; align-items: center; justify-content: flex-start; gap: 6px; white-space: nowrap; }
.theme-custom-label { font-size: 11px; color: var(--text-dim); }
.theme-custom-input { width: 100%; padding: 4px 8px; background: var(--input-bg); border: 1px solid var(--border); border-radius: 4px; color: var(--text); font-size: 11px; }
.theme-toggle-field input { margin-right: 6px; }
.theme-custom-grid input[type="color"] { width: 28px; height: 22px; border: 1px solid var(--border); border-radius: 4px; cursor: pointer; background: transparent; padding: 0; }
.theme-custom-divider { border-top: 1px solid var(--border); margin: 2px 0; }
.theme-custom-note { font-size: 10px; color: var(--text-dim); margin: 2px 0; }
.theme-custom-actions { display: flex; gap: 6px; margin-top: 4px; }
.theme-custom-action { flex: 1; font-size: 10px; height: 30px; padding: 0; }
.theme-custom-action--primary { background: var(--accent); color: #fff; border-color: var(--accent); }
.theme-custom-grid .theme-custom-field > span:first-child { white-space: nowrap; }
.theme-delete-btn { transition: opacity 0.2s; opacity: 0.6; }
.theme-delete-btn:hover { opacity: 1; }
.theme-custom-item:last-child { border-bottom: none !important; }