body {
    background: #f5f5f5;
    min-height: 100vh;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    padding: 0;
    margin: 0;
}

/* Custom Badge Colors */
.bg-purple {
    background-color: #9b59b6 !important;
    color: white !important;
}

.bg-royalblue {
    background-color: #4169e1 !important;
    color: white !important;
}

.bg-orange {
    background-color: #ff8c00 !important;
    color: white !important;
}

/* Mobile First - Base styles */
.container-fluid {
    padding: 10px !important;
}

header h1 {
    font-size: 1.5rem !important;
}

header p {
    font-size: 0.9rem !important;
}

/* Tabs - Mobile */
.nav-pills {
    flex-wrap: nowrap;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.nav-pills .nav-link {
    background: white;
    color: #333;
    font-weight: 600;
    margin: 0 5px;
    border-radius: 10px;
    transition: all 0.3s;
    border: 2px solid #e0e0e0;
    white-space: nowrap;
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
}

.nav-pills .nav-link:hover {
    background: #f8f9fa;
    border-color: #667eea;
    transform: translateY(-2px);
}

.nav-pills .nav-link.active {
    background: #667eea;
    color: white;
    border-color: #667eea;
    box-shadow: 0 3px 10px rgba(102, 126, 234, 0.3);
}

/* Cards - Mobile */
.card {
    border: none;
    border-radius: 10px;
    margin-bottom: 15px;
}

.card-header {
    border-radius: 10px 10px 0 0 !important;
    padding: 0.75rem 1rem;
    font-size: 1rem;
}

.card-header h2,
.card-header h3 {
    font-size: 1.1rem;
    margin: 0;
}

.card-body {
    padding: 0.75rem;
}

/* Number cards - Mobile optimized */
.number-card {
    transition: transform 0.2s, box-shadow 0.2s;
    border: none;
    margin-bottom: 10px;
}

.number-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(102, 126, 234, 0.2) !important;
}

.number-label {
    font-size: 0.8rem;
    color: #666;
    font-weight: 600;
}

.number-value {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.number-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 50px;
    height: 50px;
    font-size: 1.5rem;
    font-weight: bold;
    color: white;
    background: #667eea;
    border-radius: 50%;
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.number-meaning {
    font-size: 0.75rem;
    color: #666;
    line-height: 1.3;
}

.btn-primary {
    background: #667eea;
    border: none;
    font-weight: 600;
    font-size: 0.95rem;
    padding: 0.6rem 1rem;
}

.btn-primary:hover {
    background: #5568d3;
    transform: translateY(-1px);
    box-shadow: 0 2px 8px rgba(102, 126, 234, 0.3);
}

.card {
    border: none;
    border-radius: 15px;
}

.card-header {
    border-radius: 15px 15px 0 0 !important;
    padding: 1rem 1.5rem;
}

/* Form controls - Mobile */
.form-control,
.form-control-lg {
    font-size: 0.95rem;
    padding: 0.6rem 0.75rem;
}

.form-label {
    font-size: 0.9rem;
    margin-bottom: 0.3rem;
}

/* Table - Mobile responsive */
.table {
    font-size: 0.85rem;
}

.table th,
.table td {
    padding: 0.5rem;
    vertical-align: middle;
}

.table thead th {
    font-size: 0.8rem;
}

.badge {
    font-size: 0.8rem;
    padding: 0.3rem 0.5rem;
}

.hint-text {
    font-size: 0.7rem;
    color: #666;
    margin-top: 0.25rem;
    font-style: italic;
    line-height: 1.2;
}

.help-icon {
    cursor: help;
    margin-right: 3px;
    font-size: 0.8rem;
    opacity: 0.8;
    transition: opacity 0.2s;
    color: #0d6efd;
}

.help-icon:hover {
    opacity: 1;
}

/* Bootstrap tooltip text alignment */
.tooltip-inner {
    text-align: left !important;
    max-width: 300px;
}

/* Cột chi tiết số chủ đạo */
.detail-column {
    max-width: 400px;
    font-size: 0.85rem;
    background-color: #f8f9fa;
    display: none; /* Mặc định ẩn */
}

.detail-column strong {
    /* color: #0d6efd; */
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.85rem;
}

#basicInfo {
    background: #e3f2fd;
    border: none;
    font-weight: 600;
}

/* Biểu đồ kim tự tháp - Mobile */
.pyramid-cell {
    background: white;
    padding: 10px;
    border-radius: 8px;
    text-align: center;
    border: 2px solid #e0e0e0;
    transition: all 0.2s;
}

.pyramid-cell:hover {
    transform: translateY(-2px);
    box-shadow: 0 3px 10px rgba(0,0,0,0.1);
    border-color: #667eea;
}

.pyramid-number {
    font-size: 1.2rem;
    font-weight: bold;
    color: #667eea;
    margin-bottom: 5px;
}

.pyramid-dots {
    font-size: 1rem;
    color: #764ba2;
    margin: 5px 0;
    min-height: 20px;
}

.pyramid-meaning {
    font-size: 0.7rem;
    color: #666;
    margin-top: 3px;
}

/* Formula box */
.formula-box {
    background: #f8f9fa;
    border-left: 4px solid #667eea;
    padding: 12px;
    border-radius: 8px;
    height: 100%;
}

.formula-box h6 {
    margin-bottom: 8px;
    font-weight: bold;
}

.formula-box p {
    font-size: 0.85rem;
    line-height: 1.4;
}

.formula-box small {
    color: #666;
}

/* Desktop - Larger screens */
@media (min-width: 768px) {
    .container-fluid {
        padding: 20px !important;
    }

    header h1 {
        font-size: 2.5rem !important;
    }

    header p {
        font-size: 1.2rem !important;
    }

    .nav-pills .nav-link {
        font-size: 1rem;
        padding: 0.6rem 1.5rem;
    }

    .card-header h2,
    .card-header h3 {
        font-size: 1.5rem;
    }

    .card-body {
        padding: 1.5rem;
    }

    .number-badge {
        width: 60px;
        height: 60px;
        font-size: 2rem;
    }

    .number-label {
        font-size: 0.9rem;
    }

    .number-meaning {
        font-size: 0.85rem;
    }

    .pyramid-cell {
        padding: 15px;
    }

    .pyramid-number {
        font-size: 1.5rem;
    }

    .pyramid-dots {
        font-size: 1.3rem;
    }

    .pyramid-meaning {
        font-size: 0.75rem;
    }

    .table {
        font-size: 0.95rem;
    }

    .table th,
    .table td {
        padding: 0.75rem;
    }
}

@media (min-width: 992px) {
    header h1 {
        font-size: 3rem !important;
    }
}

/* Accordion Styles */
.accordion-button {
    font-weight: 600;
    font-size: 1rem;
    background-color: #f8f9fa;
}

.accordion-button:not(.collapsed) {
    background-color: #667eea;
    color: white;
}

.accordion-button:focus {
    box-shadow: none;
    border-color: #667eea;
}

.accordion-body {
    padding: 1rem;
}

.accordion-item {
    border: 1px solid #dee2e6;
    margin-bottom: 0.5rem;
    border-radius: 8px !important;
    overflow: hidden;
}

/* Table meaning styles */
.table-bordered td {
    vertical-align: middle;
}

.table-bordered tbody tr:hover {
    background-color: #f8f9fa;
    transition: background-color 0.2s;
}

/* Responsive History Table */
.history-card-view {
    display: block; /* Mobile mặc định hiển thị cards */
}

.history-table-view {
    display: none; /* Mobile ẩn table */
}

/* Desktop: hiển thị table, ẩn cards */
@media (min-width: 992px) {
    .history-card-view {
        display: none;
    }
    
    .history-table-view {
        display: block;
    }
}

/* Card styles for mobile */
.history-card {
    background: white;
    border: 1px solid #dee2e6;
    border-radius: 8px;
    padding: 1rem;
    margin-bottom: 1rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

.history-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid #667eea;
}

.history-card-title {
    font-weight: bold;
    font-size: 1.1rem;
    color: #333;
}

.history-card-subtitle {
    font-size: 0.85rem;
    color: #6c757d;
    white-space: nowrap;
}

.history-card-body {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0.75rem;
}

.history-card-item {
    display: flex;
    flex-direction: column;
}

.history-card-label {
    font-size: 0.75rem;
    color: #6c757d;
    margin-bottom: 0.25rem;
}

.history-card-value {
    font-weight: 600;
    font-size: 0.95rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.history-card-value .hint-text {
    font-weight: normal;
    margin-top: 0;
}

.history-card-footer {
    margin-top: 1rem;
    padding-top: 0.75rem;
    border-top: 1px solid #dee2e6;
    display: flex;
    gap: 0.5rem;
}

/* Detail column */
.detail-column-card {
    grid-column: 1 / -1;
    background-color: #f8f9fa;
    padding: 1px;
    border-radius: 4px;
    font-size: 0.85rem;
    line-height: 1.4;
    display: block; /* Hiển thị luôn trên mobile */
}

.detail-column-card.show {
    display: block;
}

/* Desktop: ẩn detail card vì đã có trong table */
@media (min-width: 992px) {
    .detail-column-card {
        display: none;
    }
}

/* Result view - giống history view */
.result-card-view {
    display: block; /* Mobile mặc định hiển thị card */
}

.result-table-view {
    display: none; /* Mobile ẩn table */
}

/* Desktop: hiển thị table, ẩn card */
@media (min-width: 992px) {
    .result-card-view {
        display: none;
    }
    
    .result-table-view {
        display: block;
    }
}