/* ==========================================================================
   Premium UI - CashFlow (Income & Expense Tracker)
   ========================================================================== */

/* --- CSS Variables & Theming --- */
:root {
    /* Color Palette - Light Mode */
    --bg-color: #f3f4f6;
    --surface-color: rgba(255, 255, 255, 0.7);
    --surface-border: rgba(0, 0, 0, 0.1);
    --input-bg: rgba(255, 255, 255, 0.9);
    --input-border: rgba(0, 0, 0, 0.2);
    
    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-muted: #9ca3af;
    
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: #e0e7ff;
    
    --success-color: #10b981;
    --success-hover: #059669;
    --success-bg: #d1fae5;
    
    --danger-color: #ef4444;
    --danger-hover: #dc2626;
    --danger-bg: #fee2e2;

    --warning-color: #f59e0b;
    
    --sidebar-bg: rgba(255, 255, 255, 0.85);
    --sidebar-active: #f3f4f6;
    
    /* Shadows & Effects */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    --shadow-glass: 0 8px 32px 0 rgba(31, 38, 135, 0.07);
    
    --radius-sm: 0.375rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.25rem;
    --radius-full: 9999px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Gradient Backgrounds */
    --body-bg: linear-gradient(135deg, #fdfbfb 0%, #ebedee 100%);
}

[data-theme="dark"] {
    /* Color Palette - Dark Mode */
    --bg-color: #111827;
    --surface-color: rgba(31, 41, 55, 0.7);
    --surface-border: rgba(255, 255, 255, 0.08);
    --input-bg: rgba(0, 0, 0, 0.2);
    --input-border: rgba(255, 255, 255, 0.15);
    
    --text-primary: #f9fafb;
    --text-secondary: #d1d5db;
    --text-muted: #6b7280;
    
    --primary-color: #6366f1;
    --primary-hover: #818cf8;
    --primary-light: rgba(99, 102, 241, 0.2);
    
    --success-color: #10b981;
    --success-bg: rgba(16, 185, 129, 0.2);
    
    --danger-color: #ef4444;
    --danger-bg: rgba(239, 68, 68, 0.2);
    
    --sidebar-bg: rgba(17, 24, 39, 0.85);
    --sidebar-active: #374151;

    --shadow-glass: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    
    --body-bg: linear-gradient(135deg, #111827 0%, #1f2937 100%);
}

/* --- Base Reset & Typography --- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Prompt', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    background: var(--body-bg);
    background-attachment: fixed;
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    transition: background 0.5s ease;
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    color: var(--text-primary);
}

/* --- Layout --- */
.app-container {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* --- Sidebar --- */
.sidebar {
    width: 260px;
    background: var(--sidebar-bg);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-right: 1px solid var(--surface-border);
    display: flex;
    flex-direction: column;
    padding: 1.5rem 1rem;
    z-index: 10;
    transition: var(--transition);
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0 1rem 2rem 1rem;
    color: var(--primary-color);
}

.logo i {
    font-size: 2rem;
}

.logo h2 {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--primary-color), #a855f7);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.nav-links li {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
    border-radius: var(--radius-md);
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
    font-weight: 500;
}

.nav-links li i {
    font-size: 1.25rem;
}

.nav-links li:hover {
    background: var(--sidebar-active);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-links li.active {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.nav-links li.active:hover {
    transform: none;
}

/* --- Main Content --- */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 2rem;
}

.top-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
    animation: fadeInDown 0.5s ease-out;
}

.top-header h1 {
    font-size: 1.75rem;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.date-display {
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 500;
    padding: 0.5rem 1rem;
    background: var(--surface-color);
    backdrop-filter: blur(8px);
    border-radius: var(--radius-full);
    border: 1px solid var(--surface-border);
}

.theme-toggle {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.2rem;
}

.theme-toggle:hover {
    background: var(--sidebar-active);
    color: var(--primary-color);
    transform: rotate(15deg);
}

/* --- Pages --- */
.pages-wrapper {
    flex: 1;
    position: relative;
}

.page {
    display: none;
    animation: fadeIn 0.4s ease-out;
}

.page.active {
    display: block;
}

/* --- Cards & Glassmorphism --- */
.card {
    background: var(--surface-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
    border: 1px solid var(--surface-border);
    transition: var(--transition);
}

.card.glass {
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    box-shadow: var(--shadow-glass);
}

.card:hover {
    box-shadow: var(--shadow-md);
}

/* --- Dashboard Dashboard --- */
.filter-section {
    margin-bottom: 1.5rem;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: flex-end;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    background: var(--input-bg);
    color: var(--text-primary);
    font-family: inherit;
    font-size: 0.95rem;
    outline: none;
    transition: var(--transition);
}

.form-input:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* เพิ่ม Touch Target พิเศษสำหรับมือถือ */
@media (max-width: 600px) {
    .form-input, .btn, .btn-icon, .radio-btn {
        min-height: 48px; /* มาตรฐานการสัมผัสของอุปกรณ์เคลื่อนที่ */
        font-size: 1rem !important; /* ป้องกัน iOS ซูมหน้าจออัตโนมัติ */
    }
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.summary-card {
    display: flex;
    align-items: center;
    gap: 1.25rem;
    padding: 1.5rem;
    position: relative;
    overflow: hidden;
}

.summary-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
}

.income-card::before { background: var(--success-color); }
.expense-card::before { background: var(--danger-color); }
.balance-card::before { background: var(--primary-color); }

.card-icon {
    width: 54px;
    height: 54px;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
}

.income-card .card-icon {
    background: var(--success-bg);
    color: var(--success-color);
}

.expense-card .card-icon {
    background: var(--danger-bg);
    color: var(--danger-color);
}

.balance-card .card-icon {
    background: var(--primary-light);
    color: var(--primary-color);
}

.card-details p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.25rem;
}

.card-details h3 {
    font-size: 1.75rem;
    font-weight: 700;
}

/* Charts Grid (3 Pie Charts Side-by-Side) */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    display: flex;
    flex-direction: column;
}

.chart-card h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.chart-container {
    flex: 1;
    min-height: 250px;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Table */
.table-card {
    display: flex;
    flex-direction: column;
}

.table-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.25rem;
}

.table-header h3 {
    font-size: 1.1rem;
    color: var(--text-secondary);
}

.table-responsive {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--surface-border);
}

th {
    color: var(--text-muted);
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

td {
    color: var(--text-primary);
    font-size: 0.95rem;
}

tbody tr {
    transition: var(--transition);
}

tbody tr:hover {
    background: rgba(0, 0, 0, 0.02);
}
[data-theme="dark"] tbody tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

.align-right { text-align: right; }
.align-center { text-align: center; }

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.8rem;
    font-weight: 500;
}

.badge.income {
    background: var(--success-bg);
    color: var(--success-color);
}

.badge.expense {
    background: var(--danger-bg);
    color: var(--danger-color);
}

.amount {
    font-weight: 600;
}

.amount.income { color: var(--success-color); }
.amount.expense { color: var(--danger-color); }

.action-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.action-btn:hover {
    color: var(--danger-color);
    background: var(--danger-bg);
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 3rem 1rem;
    color: var(--text-muted);
    text-align: center;
}

.empty-state i {
    font-size: 3rem;
    margin-bottom: 1rem;
    opacity: 0.5;
}

.hidden {
    display: none !important;
}

/* --- Entry Page --- */
.entry-container {
    max-width: 800px;
    margin: 0 auto;
}

.form-header {
    text-align: center;
    margin-bottom: 2rem;
}

.form-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.form-header p {
    color: var(--text-secondary);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

@media (max-width: 640px) {
    .form-row {
        grid-template-columns: 1fr;
    }
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--text-secondary);
}

.required {
    color: var(--danger-color);
}

/* Radio Buttons for Type */
.type-selector {
    display: flex;
    gap: 1rem;
}

.type-selector input[type="radio"] {
    display: none;
}

.radio-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    padding: 0.75rem;
    border: 2px solid var(--surface-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    background: rgba(255, 255, 255, 0.05);
}

.radio-btn:hover {
    background: rgba(0, 0, 0, 0.02);
}

input[type="radio"]:checked + .expense-btn {
    border-color: var(--danger-color);
    background: var(--danger-bg);
    color: var(--danger-color);
}

input[type="radio"]:checked + .income-btn {
    border-color: var(--success-color);
    background: var(--success-bg);
    color: var(--success-color);
}

/* Category Select with Add Button */
.category-select-wrapper {
    display: flex;
    gap: 0.5rem;
}

.btn-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--surface-border);
    background: var(--surface-color);
    border-radius: var(--radius-md);
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    font-size: 1.25rem;
}

.btn-icon:hover {
    background: var(--primary-color);
    color: white;
    border-color: var(--primary-color);
}

/* Buttons */
.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--surface-border);
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-family: inherit;
    font-size: 1rem;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    display: inline-flex;
    align-items: center;
    justify-content: center;
}

.btn:active {
    transform: scale(0.98);
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.3);
}

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 6px 16px rgba(79, 70, 229, 0.4);
}

.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
    border: 1px solid var(--surface-border);
}

.btn-secondary:hover {
    background: rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}
[data-theme="dark"] .btn-secondary:hover {
    background: rgba(255, 255, 255, 0.05);
}

@media (max-width: 600px) {
    .form-actions {
        flex-direction: column-reverse;
        gap: 0.75rem;
    }
    
    .form-actions .btn {
        width: 100%;
        padding: 0.9rem 1.5rem; /* เพิ่มความสูงของปุ่มบันทึกข้อมูลเพื่อความสะดวกในการจด */
    }
}

/* --- Modal --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 100;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal-overlay.active {
    opacity: 1;
    visibility: visible;
}

.modal-card {
    width: 90%;
    max-width: 400px;
    transform: translateY(20px) scale(0.95);
    transition: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.active .modal-card {
    transform: translateY(0) scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.close-modal {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 1.25rem;
    cursor: pointer;
    transition: var(--transition);
}

.close-modal:hover {
    color: var(--danger-color);
}

/* --- Toast Notifications --- */
.toast-container {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    z-index: 1000;
    pointer-events: none; /* เพื่อป้องกันไม่ให้ container บังการกดปุ่มด้านหลังเมื่อไม่มีการแสดงผล */
}

.toast {
    background: var(--surface-color);
    backdrop-filter: blur(12px);
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    padding: 1rem 1.5rem;
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-lg);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    animation: slideInRight 0.3s ease-out forwards;
    transform: translateX(100%);
    pointer-events: auto; /* ให้กดที่ตัว Toast เองได้ */
}

.toast.success i { color: var(--success-color); }
.toast.error i { color: var(--danger-color); }

.toast.fade-out {
    animation: slideOutRight 0.3s ease-in forwards;
}

@keyframes slideOutRight {
    from { transform: translateX(0); opacity: 1; }
    to { transform: translateX(100%); opacity: 0; }
}

/* --- Animations --- */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-10px); }
    to { opacity: 1; transform: translateY(0); }
}

@keyframes slideInRight {
    from { transform: translateX(100%); opacity: 0; }
    to { transform: translateX(0); opacity: 1; }
}


/* --- Transactions page specific styles --- */
.filters-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
}

.filter-tabs {
    display: flex;
    background: var(--input-bg);
    border: 1px solid var(--input-border);
    border-radius: var(--radius-md);
    padding: 0.25rem;
    gap: 0.25rem;
}

.filter-tabs .tab-btn {
    padding: 0.5rem 1.25rem;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition);
    font-family: inherit;
}

.filter-tabs .tab-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .filter-tabs .tab-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.filter-tabs .tab-btn.active {
    background: var(--primary-color);
    color: white;
    box-shadow: var(--shadow-sm);
}

.month-selector-group {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.month-selector-group label {
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
}

.month-input-wrapper {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-clear {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-clear:hover {
    background: var(--danger-bg);
    color: var(--danger-color);
    border-color: var(--danger-color);
}

/* Investment colors and badges in list */
.badge.investment {
    background: rgba(139, 92, 246, 0.15);
    color: #8b5cf6;
}

.amount.investment {
    color: #8b5cf6;
}

[data-theme="dark"] .badge.investment {
    background: rgba(139, 92, 246, 0.25);
    color: #a78bfa;
}

[data-theme="dark"] .amount.investment {
    color: #a78bfa;
}

@media (max-width: 640px) {
    .filters-container {
        flex-direction: column;
        align-items: stretch;
    }
    .filter-tabs {
        width: 100%;
    }
    .filter-tabs .tab-btn {
        flex: 1;
        text-align: center;
        padding: 0.5rem 0.25rem;
    }
    .month-selector-group {
        justify-content: space-between;
    }
}

/* Responsive */
@media (max-width: 768px) {
    .app-container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 0.75rem 1rem;
        border-right: none;
        border-bottom: 1px solid var(--surface-border);
    }
    
    .logo {
        padding: 0;
        flex-shrink: 0; /* ป้องกันโลโก้บีบ */
    }

    .logo h2 {
        display: none; /* ซ่อนข้อความ CashFlow บนมือถือ เพื่อให้ปุ่มเมนูมีพื้นที่มากขึ้น */
    }
    
    .nav-links {
        flex-direction: row;
        gap: 0.25rem; /* ลดระยะห่างให้แคบลงเพื่อให้จุปุ่มทั้ง 5 ได้ */
        flex-wrap: nowrap;
    }

    /* ปรับขนาด padding ของปุ่มเมนูแต่ละปุ่มให้เล็กลงบนมือถือ */
    .nav-links li {
        padding: 0.6rem 0.75rem;
        gap: 0;
    }

    .nav-links li i {
        font-size: 1.35rem; /* ลดขนาดไอคอนเล็กน้อย */
    }
    
    .nav-links li span {
        display: none;
    }
    
    .main-content {
        padding: 1rem;
    }
}

/* ป้องกันหน้าจอสั่นคลอนและล้นออกไปด้านข้าง (Horizontal Scroll) บนโทรศัพท์ */
html, body {
    max-width: 100%;
    overflow-x: hidden;
}

.app-container {
    max-width: 100%;
    overflow-x: hidden;
}

/* --- Portfolio Performance Styles --- */
.performance-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 1.5rem;
    align-items: start;
}

.perf-col {
    display: flex;
    flex-direction: column;
}

.perf-summary-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.perf-stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--surface-border);
    border-radius: var(--radius-md);
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

[data-theme="light"] .perf-stat-card {
    background: rgba(0, 0, 0, 0.02);
}

.perf-stat-card .label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.perf-stat-card .value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary-color);
}

/* Analysis table highlight text colors */
.gain-text {
    color: var(--success-color);
    font-weight: 600;
}

.loss-text {
    color: var(--danger-color);
    font-weight: 600;
}

.flat-text {
    color: var(--text-muted);
}

@media (max-width: 1024px) {
    .performance-grid {
        grid-template-columns: 1fr;
    }
    .perf-charts-comparison {
        grid-template-columns: 1fr !important;
        gap: 1.5rem;
    }
}

@media (max-width: 600px) {
    .perf-summary-row {
        grid-template-columns: 1fr;
        gap: 0.75rem;
    }
    
    /* ป้องกันชาร์ตล้นขอบจอและแสดงผลยืดหยุ่นขึ้นในแนวดิ่ง */
    .perf-charts-comparison .chart-container {
        height: 220px !important;
    }
    
    /* ป้องกันตารางล้นขอบจอ */
    #performance-page .table-responsive {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }
    
    #performance-page table {
        min-width: 650px; /* บังคับความกว้างตารางขั้นต่ำเพื่อให้เลื่อนดูได้ ไม่บีบตัวหนังสือจนเละ */
    }
}