/* Google Fonts - Import Prompt and Inter */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Prompt:wght@300;400;500;600;700&display=swap');

:root {
    --font-thai: 'Prompt', 'Sarabun', sans-serif;
    --font-eng: 'Inter', sans-serif;
    
    /* Layout Constants */
    --sidebar-width: 260px;
    --sidebar-collapsed-width: 70px;
    --top-bar-height: 60px;
    --transition-speed: 0.3s;
}

/* LIGHT MODE BASES */
:root {
    --body-bg: #f4f6f9;
    --card-bg: #ffffff;
    --text-main: #334155;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --input-bg: #ffffff;
    --input-border: #cbd5e1;
    --input-text: #334155;
    --shadow-sm: 0 1px 3px 0 rgba(0, 0, 0, 0.05), 0 1px 2px 0 rgba(0, 0, 0, 0.03);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -1px rgba(0, 0, 0, 0.03);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.05), 0 4px 6px -2px rgba(0, 0, 0, 0.02);
}

/* DARK MODE BASES */
[data-bs-theme="dark"] {
    --body-bg: #0f172a;
    --card-bg: #1e293b;
    --text-main: #f1f5f9;
    --text-muted: #94a3b8;
    --border-color: #334155;
    --input-bg: #0f172a;
    --input-border: #475569;
    --input-text: #f1f5f9;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.2);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
}

/* 1. Theme Blue-Pink */
[data-theme="blue-pink"] {
    --primary-color: #3b82f6;
    --primary-hover: #2563eb;
    --primary-light: rgba(59, 130, 246, 0.1);
    --accent-color: #ec4899;
    --accent-hover: #db2777;
    --accent-light: rgba(236, 72, 153, 0.1);
    --gradient-primary: linear-gradient(135deg, #3b82f6, #ec4899);
    --gradient-secondary: linear-gradient(135deg, #60a5fa, #f472b6);
    --header-bg: var(--card-bg);
    --sidebar-bg: #0f172a;
    --sidebar-text: #94a3b8;
    --sidebar-active-bg: var(--gradient-primary);
    --sidebar-active-text: #ffffff;
    --top-border-color: #ec4899;
    --alert-color: #3b82f6;
}

/* 2. Theme Red-Yellow */
[data-theme="red-yellow"] {
    --primary-color: #dc3545;
    --primary-hover: #b02a37;
    --primary-light: rgba(220, 53, 69, 0.1);
    --accent-color: #ffc107;
    --accent-hover: #e0a800;
    --accent-light: rgba(255, 193, 7, 0.15);
    --gradient-primary: linear-gradient(135deg, #dc3545, #ffc107);
    --gradient-secondary: linear-gradient(135deg, #f05252, #fcd34d);
    --header-bg: var(--card-bg);
    --sidebar-bg: #212529;
    --sidebar-text: #adb5bd;
    --sidebar-active-bg: #dc3545;
    --sidebar-active-text: #ffffff;
    --top-border-color: #ffc107;
    --alert-color: #dc3545;
}

/* 3. Theme Red-Grey */
[data-theme="red-grey"] {
    --primary-color: #dc3545;
    --primary-hover: #b02a37;
    --primary-light: rgba(220, 53, 69, 0.1);
    --accent-color: #6c757d;
    --accent-hover: #5c636a;
    --accent-light: rgba(108, 117, 125, 0.1);
    --gradient-primary: linear-gradient(135deg, #dc3545, #6c757d);
    --gradient-secondary: linear-gradient(135deg, #f05252, #9ca3af);
    --header-bg: var(--card-bg);
    --sidebar-bg: #212529;
    --sidebar-text: #adb5bd;
    --sidebar-active-bg: #dc3545;
    --sidebar-active-text: #ffffff;
    --top-border-color: #6c757d;
    --alert-color: #dc3545;
}

/* 4. Theme Red-White */
[data-theme="red-white"] {
    --primary-color: #dc3545;
    --primary-hover: #b02a37;
    --primary-light: rgba(220, 53, 69, 0.1);
    --accent-color: #f8f9fa;
    --accent-hover: #e9ecef;
    --accent-light: rgba(248, 249, 250, 0.15);
    --gradient-primary: linear-gradient(135deg, #dc3545, #c82333);
    --gradient-secondary: linear-gradient(135deg, #dc3545, #f8f9fa);
    --header-bg: var(--card-bg);
    --sidebar-bg: #1c1f22;
    --sidebar-text: #ced4da;
    --sidebar-active-bg: #dc3545;
    --sidebar-active-text: #ffffff;
    --top-border-color: #dc3545;
    --alert-color: #dc3545;
}

/* CORE STYLING */
body {
    font-family: var(--font-thai);
    background-color: var(--body-bg);
    color: var(--text-main);
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* LAYOUT CONTAINER */
.app-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* SIDEBAR STYLING */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--sidebar-bg);
    color: #ffffff;
    flex-shrink: 0;
    transition: width var(--transition-speed) ease-in-out;
    display: flex;
    flex-direction: column;
    z-index: 1000;
    box-shadow: 2px 0 10px rgba(0,0,0,0.1);
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
}

.sidebar-brand {
    height: var(--top-bar-height);
    display: flex;
    align-items: center;
    padding: 0 1.25rem;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.sidebar-brand-text {
    font-weight: 600;
    font-size: 1rem;
    color: #ffffff;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    transition: opacity var(--transition-speed);
}

.sidebar-menu {
    flex-grow: 1;
    overflow-y: auto;
    padding: 1rem 0;
}

.sidebar-menu::-webkit-scrollbar {
    width: 4px;
}
.sidebar-menu::-webkit-scrollbar-thumb {
    background: rgba(255,255,255,0.1);
    border-radius: 4px;
}

.menu-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: rgba(255,255,255,0.4);
    padding: 0.75rem 1.5rem 0.25rem;
    white-space: nowrap;
}

.menu-item {
    display: block;
}

.menu-link {
    display: flex;
    align-items: center;
    padding: 0.75rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    transition: all 0.2s ease;
    border-left: 3px solid transparent;
}

.menu-link i {
    width: 20px;
    font-size: 1.1rem;
    margin-right: 0.75rem;
    text-align: center;
    transition: margin var(--transition-speed);
}

.menu-link:hover {
    color: #ffffff;
    background-color: rgba(255,255,255,0.05);
}

.menu-link.active {
    background: var(--sidebar-active-bg);
    color: var(--sidebar-active-text);
    border-left-color: var(--accent-color);
}

/* Submenu Styling */
.menu-submenu {
    list-style: none;
    padding-left: 1.5rem;
    display: none;
    background: rgba(0, 0, 0, 0.2);
}

.menu-submenu.show {
    display: block;
}

.submenu-link {
    display: flex;
    align-items: center;
    padding: 0.5rem 1.5rem;
    color: var(--sidebar-text);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.submenu-link:hover, .submenu-link.active {
    color: #ffffff;
}

.submenu-link.active::before {
    content: "•";
    color: var(--accent-color);
    margin-right: 0.5rem;
    font-weight: bold;
}

.submenu-link:not(.active)::before {
    content: "•";
    color: transparent;
    margin-right: 0.5rem;
}

.sidebar-footer {
    padding: 1rem;
    background-color: rgba(0,0,0,0.15);
    border-top: 1px solid rgba(255,255,255,0.08);
}

/* MAIN CONTENT STYLING */
.main-content {
    margin-left: var(--sidebar-width);
    width: calc(100% - var(--sidebar-width));
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    transition: margin-left var(--transition-speed), width var(--transition-speed);
}

/* COLLAPSED STATE FOR SIDEBAR */
.sidebar.collapsed {
    width: var(--sidebar-collapsed-width);
}
.sidebar.collapsed .sidebar-brand-text,
.sidebar.collapsed .menu-category,
.sidebar.collapsed .menu-link span,
.sidebar.collapsed .sidebar-footer span,
.sidebar.collapsed .menu-link .arrow-icon,
.sidebar.collapsed .menu-submenu {
    display: none !important;
}
.sidebar.collapsed .menu-link i {
    margin-right: 0;
    font-size: 1.25rem;
}
.sidebar.collapsed .menu-link {
    justify-content: center;
    padding: 1rem 0;
}
.main-content.expanded {
    margin-left: var(--sidebar-collapsed-width);
    width: calc(100% - var(--sidebar-collapsed-width));
}

/* TOP BAR STYLING */
.top-bar {
    height: var(--top-bar-height);
    background-color: var(--header-bg);
    border-bottom: 1px solid var(--border-color);
    border-top: 3px solid var(--top-border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    position: sticky;
    top: 0;
    z-index: 999;
    box-shadow: var(--shadow-sm);
    transition: background-color var(--transition-speed), border-color var(--transition-speed);
}

.toggle-sidebar-btn {
    background: none;
    border: none;
    color: var(--text-main);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 0.25rem;
}

.system-title {
    font-size: 1.1rem;
    font-weight: 600;
    margin-left: 1rem;
}

.top-bar-actions {
    display: flex;
    align-items: center;
    gap: 1rem;
}

/* THEME ACCENTS */
.theme-dot {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    border: 2px solid transparent;
    transition: transform 0.2s;
}
.theme-dot:hover, .theme-dot.active {
    transform: scale(1.2);
    border-color: #000;
}

/* CARDS STYLING */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    box-shadow: var(--shadow-sm);
    margin-bottom: 1.5rem;
    transition: transform 0.2s, box-shadow 0.2s, background-color var(--transition-speed), border-color var(--transition-speed);
}

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

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.card-header.bg-theme {
    background: var(--gradient-primary);
    color: #ffffff;
    border-bottom: none;
}

/* STATS CARDS */
.stat-card {
    position: relative;
    overflow: hidden;
}
.stat-card::after {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 150px;
    height: 150px;
    background: rgba(255,255,255,0.05);
    border-radius: 50%;
}
.stat-icon {
    font-size: 2.25rem;
    opacity: 0.8;
}

/* FORMS AND BUTTONS */
.form-control, .form-select {
    background-color: var(--input-bg);
    border: 1px solid var(--input-border);
    color: var(--input-text);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
}

.form-control:focus, .form-select:focus {
    background-color: var(--input-bg);
    border-color: var(--primary-color);
    color: var(--input-text);
    box-shadow: 0 0 0 0.25rem rgba(59, 130, 246, 0.25);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
}
.btn-primary:hover, .btn-primary:focus {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
}

.btn-accent {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    color: #ffffff;
}
.btn-accent:hover, .btn-accent:focus {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    color: #ffffff;
}

.btn-gradient {
    background: var(--gradient-primary);
    border: none;
    color: #ffffff;
    transition: opacity 0.2s;
}
.btn-gradient:hover {
    opacity: 0.9;
    color: #ffffff;
}

/* BADGES */
.badge-theme {
    background-color: var(--primary-light);
    color: var(--primary-color);
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* DRAG & DROP FILE UPLOAD AREA */
.upload-dropzone {
    border: 2px dashed var(--input-border);
    border-radius: 12px;
    padding: 2.5rem;
    text-align: center;
    background: rgba(0,0,0,0.01);
    cursor: pointer;
    transition: border-color 0.2s;
}
.upload-dropzone:hover {
    border-color: var(--primary-color);
    background: var(--primary-light);
}

/* RESPONSIVE TABLES */
.table {
    color: var(--text-main);
    border-color: var(--border-color);
    vertical-align: middle;
}
.table > :not(caption) > * > * {
    background-color: transparent;
    padding: 0.75rem 1rem;
}
.table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(0, 0, 0, 0.02);
}
[data-bs-theme="dark"] .table-striped > tbody > tr:nth-of-type(odd) > * {
    background-color: rgba(255, 255, 255, 0.02);
}

/* PRINT MEDIA CSS */
@media print {
    .sidebar, .top-bar, .no-print, .btn, footer {
        display: none !important;
    }
    .main-content {
        margin-left: 0 !important;
        width: 100% !important;
        padding: 0 !important;
    }
    body {
        background-color: #ffffff !important;
        color: #000000 !important;
        font-size: 12pt;
    }
    .card {
        border: none !important;
        box-shadow: none !important;
    }
    .card-header {
        border-bottom: 2px solid #000000 !important;
        color: #000000 !important;
    }
}

/* USER ACCOUNT SELECTOR (LOGIN PAGE) */
.user-select-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(210px, 1fr));
    gap: 0.65rem;
    max-height: 210px;
    overflow-y: auto;
    padding: 0.25rem;
}
.user-card-item {
    border-color: var(--border-color) !important;
    background-color: var(--card-bg) !important;
    color: var(--text-main);
    box-shadow: var(--shadow-sm);
}
.user-card-item:hover {
    border-color: var(--primary-color) !important;
    background-color: var(--primary-light) !important;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}
.user-card-item.active-user {
    border-color: var(--primary-color) !important;
    background-color: var(--primary-light) !important;
    box-shadow: 0 0 0 2px rgba(59, 130, 246, 0.35) !important;
}
[data-bs-theme="dark"] .user-card-item {
    background-color: rgba(255, 255, 255, 0.03) !important;
}
[data-bs-theme="dark"] .user-card-item:hover,
[data-bs-theme="dark"] .user-card-item.active-user {
    background-color: rgba(59, 130, 246, 0.15) !important;
}
.user-select-grid::-webkit-scrollbar {
    width: 5px;
}
.user-select-grid::-webkit-scrollbar-track {
    background: transparent;
}
.user-select-grid::-webkit-scrollbar-thumb {
    background: var(--input-border);
    border-radius: 4px;
}
.user-select-grid::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* RESPONSIVE MOBILE ADJUSTMENTS */
@media (max-width: 991.98px) {
    .sidebar {
        left: calc(-1 * var(--sidebar-width));
    }
    .sidebar.show {
        left: 0;
    }
    .main-content {
        margin-left: 0;
        width: 100%;
    }
    .sidebar.collapsed {
        left: calc(-1 * var(--sidebar-width));
    }
    .main-content.expanded {
        margin-left: 0;
        width: 100%;
    }
}