:root {
    --vc-accent-color: #d4a017; /* Vàng đồng highlight */
    --vc-bg-form: transparent;
    --vc-text-main: #1a1a1a;  /* Chữ đen đậm cho Light Mode */
    --vc-text-muted: #444;     /* Nhãn xám đậm cho Light Mode */
    --vc-border-color: #999;   /* Viền xám cho Light Mode */
    --vc-input-bg: transparent;
    --vc-result-bg: #e8f5e9;   /* Xanh nhạt dịu cho Văn Khấn Light Mode */
    --vc-mota-bg: #f5f5f5;     /* Xám nhạt cho Mô Tả Light Mode */
    --vc-input-height: 42px;
}

/* Chỉ áp dụng Dark Mode khi theme có class cụ thể ở body hoặc html */
body.dark, body.dark-mode, [data-theme='dark'], html.dark {
    --vc-text-main: #e0e0e0;
    --vc-text-muted: #aaa;
    --vc-border-color: #444;
    --vc-result-bg: #1b261b;   /* Xanh đen rất tối cho Văn Khấn Dark Mode */
    --vc-mota-bg: #222222;     /* Xám đen cho Mô Tả Dark Mode */
}

#vancung-form h3 {
    color: var(--vc-accent-color);
    text-transform: uppercase;
    font-size: 1.1rem;
    margin-top: 25px;
    margin-bottom: 15px;
    border-left: 3px solid var(--vc-accent-color);
    padding-left: 10px;
}

#vancung-form label {
    color: var(--vc-text-muted);
    font-size: 0.9rem;
    font-weight: 500;
}

#vancung-form input[type="text"],
#vancung-form input[type="number"],
#vancung-form select,
.vancung-controls select,
.vancung-controls button.button {
    height: var(--vc-input-height);
    line-height: var(--vc-input-height);
    background-color: var(--vc-input-bg) !important;
    color: var(--vc-text-main) !important;
    border: 1px solid var(--vc-border-color) !important;
    border-radius: 0 !important;
    padding: 0 12px !important;
    width: 100% !important;
    box-sizing: border-box;
    outline: none;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
}

#vancung-form input:focus,
#vancung-form select:focus {
    border-color: var(--vc-accent-color) !important;
}

/* Tăng độ đậm cho nút Hôm nay và các nhãn */
.vc-today-btn {
    font-weight: bold !important;
}

#vancung-form input::placeholder {
    color: #888;
}

.hvd-flex-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-start;
    gap: 12px;
}

.hvd-flex-row .item {
    flex: 1 1 20%;
    min-width: 150px;
    display: flex;
    flex-direction: column;
}

@media (min-width: 1024px) {
    .hvd-flex-row {
        flex-wrap: nowrap;
    }
    .hvd-flex-row .item {
        min-width: auto;
    }
}

@media (max-width: 768px) {
    .hvd-flex-row .item {
        flex: 1 1 48%;
        min-width: auto;
    }
    #vancung-form .hvd-flex-row .item:last-child {
        flex: 1 1 100%;
    }
}

.vc-selection-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
    margin-top: 15px;
}

.vc-select-group {
    flex: 1 1 48%;
    display: flex;
    flex-direction: column;
}

@media (max-width: 768px) {
    .vc-select-group {
        flex: 1 1 100%;
    }
}

.vc-toogleType .toggle-switch {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: sans-serif;
    height: var(--vc-input-height);
}

.vc-toogleType .switch {
}

.vc-toogleType #vancung_type_date,
.vc-toogleType #vancung_type_cung {
    display: none;
}

.vc-toogleType .slider {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 22px;
    background-color: var(--vc-border-color);
    transition: .4s;
    cursor: pointer;
    border-radius: 22px;
}

.vc-toogleType .slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 3px;
    bottom: 3px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.vc-toogleType input:checked + .slider {
    background-color: var(--vc-accent-color);
}

.vc-toogleType input:checked + .slider:before {
    transform: translateX(22px);
}

.vc-toggle-label {
    font-size: 0.9rem;
    color: var(--vc-text-main);
    font-weight: 500;
    min-width: 80px;
    white-space: nowrap;
}

.vc-toggle-label.am-lich {
    color: var(--vc-accent-color);
}

.vancung-content {
    background: var(--vc-result-bg);
    color: var(--vc-text-main);
    padding: 25px;
    border: 1px solid var(--vc-border-color);
    border-radius: 0;
    margin-top: 20px;
    line-height: 1.8;
}

.vancung-submit {
    background-color: var(--vc-accent-color) !important;
    color: #fff !important;
    border: none !important;
    padding: 12px 30px !important;
    font-weight: bold !important;
    text-transform: uppercase !important;
    cursor: pointer;
    transition: opacity 0.3s;
    height: auto !important;
    margin-top: 20px;
}

.vancung-submit:hover {
    opacity: 0.9;
}

.vancung-submit.loading {
    position: relative;
    color: transparent !important;
    pointer-events: none;
}

.vancung-submit.loading::after {
    content: "";
    position: absolute;
    width: 20px;
    height: 20px;
    top: 50%;
    left: 50%;
    margin-top: -10px;
    margin-left: -10px;
    border: 2px solid rgba(255,255,255,0.3);
    border-radius: 50%;
    border-top-color: #fff;
    animation: vc-spin 0.6s linear infinite;
}

@keyframes vc-spin {
    to { transform: rotate(360deg); }
}

.vancung-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0;
    background: var(--vc-mota-bg);
    border: 1px solid var(--vc-border-color);
    margin-top: 20px;
    border-radius: 0 !important;
    box-shadow: none !important;
}

.vancung-controls .col {
    flex: 1 1 50%;
    display: flex;
    gap: 15px;
    align-items: center;
    padding: 10px 15px;
    box-sizing: border-box;
}

@media (max-width: 991px) {
    .vancung-controls .col {
        flex: 1 1 100%;
        border-bottom: 1px solid var(--vc-border-color);
    }
    .vancung-controls .col:last-child {
        border-bottom: none;
    }
}

.vancung-controls .item {
    display: flex;
    align-items: center;
    gap: 5px;
    flex: 1;
}

.vancung-controls button.button {
    padding: 0 15px !important;
    width: auto;
    white-space: nowrap;
    cursor: pointer;
    background: var(--vc-input-bg) !important; /* Trong suốt */
}

.vancung-controls button.button:disabled,
.vancung-controls button.button.disabled {
    opacity: 0.4;
    cursor: not-allowed;
    border-color: var(--vc-border-color) !important;
    color: var(--vc-text-muted) !important;
}

.vancung-controls button.button:hover {
    border-color: var(--vc-accent-color) !important;
    color: var(--vc-accent-color) !important;
}

.vancung-font-size {
    width: 35px !important;
    flex: 0 0 35px !important;
}

.vancung-font-family {
    min-width: 120px;
    flex: 1;
}

.hvd-var-vancung {
    color: var(--vc-accent-color);
    font-weight: bold;
}

/* Popup & Slide "Hướng dẫn" */
.vancung-popup-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.7);
    z-index: 9998;
}

.vancung-popup-content {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--vc-mota-bg) !important;
    color: var(--vc-text-main) !important;
    padding: 30px 20px 20px;
    border-radius: 8px;
    max-width: 700px;
    width: 90%;
    z-index: 9999;
    box-shadow: 0 0 20px rgba(0, 0, 0, 0.5);
    max-height: 80vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.vancung-slide-content {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--vc-mota-bg) !important;
    color: var(--vc-text-main) !important;
    padding: 40px 20px 20px;
    box-shadow: 0 -5px 20px rgba(0, 0, 0, 0.3);
    z-index: 9999;
    max-height: 85vh;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    border-radius: 20px 20px 0 0 !important;
}

.vancung-popup-close, .vancung-slide-close {
    position: absolute !important;
    top: 10px;
    left: 50%;
    transform: translateX(-50%);
    background: var(--vc-accent-color) !important;
    color: #fff !important;
    border: none !important;
    padding: 5px 20px !important;
    cursor: pointer;
    font-size: 0.8rem;
    border-radius: 20px !important;
}

.vancung-slide-close {
    top: 0;
    border-radius: 0 0 10px 10px !important;
}

.vancung-mota-box {
    background: var(--vc-mota-bg);
    color: var(--vc-text-main);
    border: 1px solid var(--vc-border-color);
    padding: 15px;
    margin-top: 15px;
}

/* Loading */
.vc-loading-container {
    background-color: var(--vc-mota-bg);
    color: var(--vc-text-main);
    border-color: var(--vc-border-color);
}

.vc-today-btn {
    background: var(--vc-accent-color) !important;
    color: #fff !important;
    font-size: 0.75rem !important;
    padding: 4px 10px !important;
    line-height: 1 !important;
    height: auto !important;
}