/* style.css - Premium Design System for Debtor & Ledger Web App */

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

/* CSS Variables for Themes */
:root {
    /* Color Palette (Default Dark Mode) */
    --bg-main: #080c18;
    --bg-card: rgba(14, 20, 40, 0.75);
    --bg-card-hover: rgba(22, 32, 58, 0.90);
    --border-color: rgba(120, 140, 255, 0.12);

    /* ── Typography Colors (Dark Mode) ── */
    --text-primary:   #e8eaf6;        /* Indigo-tinted white — อ่านง่าย ไม่แสบตา */
    --text-secondary: #a5b4fc;        /* Soft Indigo — สวย มีชีวิตชีวา */
    --text-muted:     #6674a8;        /* Muted Blue-Indigo — ลดความสำคัญอย่างสง่างาม */
    --text-accent:    #67e8f9;        /* Cyan Glow — ใช้กับตัวเลขเด่น */

    /* ── Gradient Definitions ── */
    --grad-heading:  linear-gradient(135deg, #818cf8 0%, #c084fc 60%, #f472b6 100%);
    --grad-value:    linear-gradient(120deg, #67e8f9 0%, #818cf8 100%);
    --grad-label:    linear-gradient(90deg,  #a5b4fc 0%, #c084fc 100%);
    --grad-primary:  linear-gradient(135deg, #6366f1 0%, #a855f7 100%);

    --primary: #6366f1;         /* Indigo */
    --primary-glow: rgba(99, 102, 241, 0.28);
    --primary-hover: #4f46e5;
    --secondary: #a855f7;       /* Purple */

    --success: #34d399;         /* Mint Green */
    --success-bg: rgba(52, 211, 153, 0.15);
    --success-border: rgba(52, 211, 153, 0.35);

    --danger: #f87171;          /* Rose Red */
    --danger-bg: rgba(248, 113, 113, 0.15);
    --danger-border: rgba(248, 113, 113, 0.35);

    --warning: #fbbf24;         /* Golden Amber */
    --warning-bg: rgba(251, 191, 36, 0.15);
    --warning-border: rgba(251, 191, 36, 0.35);

    --info: #22d3ee;            /* Cyan */
    --info-bg: rgba(34, 211, 238, 0.15);

    /* Box Shadows & Glassmorphism */
    --card-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.35);
    --glass-blur: 14px;
    --transition-speed: 0.3s;

    /* Layout */
    --sidebar-width: 260px;
}

/* Light Mode Variables Override */
[data-theme="light"] {
    --bg-main: #eef0f8;
    --bg-card: rgba(255, 255, 255, 0.94);
    --bg-card-hover: rgba(255, 255, 255, 1);
    --border-color: rgba(99, 102, 241, 0.12);

    /* ── Typography Colors (Light Mode) ── */
    --text-primary:   #1e1b4b;        /* Deep Indigo — ดูหรูกว่าดำล้วน */
    --text-secondary: #4338ca;        /* Indigo — อ่านง่าย มีสีสัน */
    --text-muted:     #7c84c4;        /* Soft Indigo-Grey */
    --text-accent:    #0e7490;        /* Deep Cyan */

    /* Gradients same names, light-friendly stops */
    --grad-heading:  linear-gradient(135deg, #4f46e5 0%, #7c3aed 60%, #db2777 100%);
    --grad-value:    linear-gradient(120deg, #0e7490 0%, #4f46e5 100%);
    --grad-label:    linear-gradient(90deg,  #4338ca 0%, #7c3aed 100%);
    --grad-primary:  linear-gradient(135deg, #4f46e5 0%, #7c3aed 100%);

    --primary: #4f46e5;
    --primary-glow: rgba(79, 70, 229, 0.18);
    --primary-hover: #3730a3;
    --secondary: #9333ea;

    --success: #059669;
    --success-bg: rgba(5, 150, 105, 0.1);
    --success-border: rgba(5, 150, 105, 0.25);

    --danger: #dc2626;
    --danger-bg: rgba(220, 38, 38, 0.1);
    --danger-border: rgba(220, 38, 38, 0.25);

    --warning: #d97706;
    --warning-bg: rgba(217, 119, 6, 0.1);
    --warning-border: rgba(217, 119, 6, 0.25);

    --info: #0284c7;
    --info-bg: rgba(2, 132, 199, 0.1);

    --card-shadow: 0 8px 24px 0 rgba(99, 102, 241, 0.1);
}

/* Basic Reset */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', 'Sarabun', sans-serif;
    outline: none;
}

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    overflow-x: hidden;
    transition: background-color var(--transition-speed), color var(--transition-speed);
}

/* Scrollbar Customization */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--bg-main);
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* App Layout */
.app-container {
    display: flex;
    width: 100%;
    position: relative;
}

/* Sidebar Navigation */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-card);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    padding: 2rem 1.5rem;
    position: fixed;
    height: 100vh;
    z-index: 10;
    transition: transform var(--transition-speed) ease, background var(--transition-speed);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 3rem;
}

.logo-icon {
    font-size: 1.75rem;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-text {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.025em;
    background: linear-gradient(135deg, var(--text-primary), var(--text-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    flex-grow: 1;
}

.nav-item a {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 0.85rem 1.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 12px;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all var(--transition-speed) ease;
}

.nav-item a i {
    font-size: 1.1rem;
    transition: transform var(--transition-speed) ease;
}

.nav-item a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
}

.nav-item a:hover i {
    transform: translateX(3px);
}

.nav-item.active a {
    background: linear-gradient(135deg, var(--primary), rgba(99, 102, 241, 0.5));
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.sidebar-footer {
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Theme Toggle Button */
.theme-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    background: rgba(0, 0, 0, 0.1);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    cursor: pointer;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-speed) ease;
    justify-content: center;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.05);
}

/* Main Content Area */
.main-content {
    margin-left: var(--sidebar-width);
    flex-grow: 1;
    min-height: 100vh;
    padding: 2rem 3rem;
    transition: margin var(--transition-speed) ease;
}

.header-section {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

    .title-area h1 {
        font-size: 1.8rem;
        font-weight: 800;
        background: var(--grad-heading);
        -webkit-background-clip: text;
        -webkit-text-fill-color: transparent;
        background-clip: text;
        margin-bottom: 0.3rem;
        letter-spacing: -0.03em;
        filter: drop-shadow(0 0 18px rgba(129,140,248,0.35));
    }

.title-area p {
    color: var(--text-muted);
    font-size: 0.88rem;
    font-weight: 500;
    letter-spacing: 0.01em;
}

.action-area {
    display: flex;
    gap: 1rem;
}

/* Pages Control (Tab System) */
.page {
    display: none;
    animation: fadeIn var(--transition-speed) ease-in-out forwards;
}

.page.active {
    display: block;
}

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

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    font-size: 0.9rem;
    cursor: pointer;
    border: none;
    transition: all var(--transition-speed) ease;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-success {
    background: var(--success);
    color: #fff;
}

.btn-success:hover {
    background: #059669;
    transform: translateY(-2px);
}

.btn-danger {
    background: var(--danger);
    color: #fff;
}

.btn-danger:hover {
    background: #dc2626;
    transform: translateY(-2px);
}

.btn-xs {
    padding: 0.35rem 0.75rem;
    font-size: 0.8rem;
    border-radius: 6px;
}

/* KPI Summary Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1.25rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    transition: all var(--transition-speed) ease;
}

.stat-card:hover {
    transform: translateY(-4px);
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
}

.stat-icon {
    width: 50px;
    height: 50px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
}

.stat-icon.primary {
    background: var(--primary-glow);
    color: var(--primary);
}

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

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

.stat-icon.warning {
    background: var(--warning-bg);
    color: var(--warning);
}

.stat-icon.info {
    background: var(--info-bg);
    color: var(--info);
}

.stat-info {
    display: flex;
    flex-direction: column;
}

.stat-title {
    font-size: 0.8rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 0.35rem;
    background: var(--grad-label);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-value {
    font-size: 1.6rem;
    font-weight: 900;
    letter-spacing: -0.03em;
    background: var(--grad-value);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Dashboard Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: 2fr 1fr;
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

@media (max-width: 1024px) {
    .charts-grid {
        grid-template-columns: 1fr;
    }
}

.chart-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    padding: 1.75rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(var(--glass-blur));
}

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

.chart-title {
    font-size: 1.05rem;
    font-weight: 700;
    background: var(--grad-label);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -0.01em;
}

.chart-container {
    position: relative;
    width: 100%;
    min-height: 250px;
    max-height: 350px;
}

/* Filter Controls Box */
.filter-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(var(--glass-blur));
}

.filter-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
}

.filter-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.filter-group label {
    font-size: 0.78rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.07em;
    background: var(--grad-label);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.input-control {
    background: rgba(0, 0, 0, 0.15);
    border: 1px solid var(--border-color);
    border-radius: 10px;
    padding: 0.65rem 1rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: all var(--transition-speed) ease;
}

[data-theme="light"] .input-control {
    background: rgba(255, 255, 255, 0.9);
}

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

.search-wrapper {
    position: relative;
}

.search-wrapper i {
    position: absolute;
    right: 1rem;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
}

.search-wrapper input {
    padding-right: 2.5rem;
    width: 100%;
}

/* Table Card styling */
.table-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: var(--card-shadow);
    backdrop-filter: blur(var(--glass-blur));
    overflow: hidden;
}

.table-responsive {
    overflow-x: auto;
    width: 100%;
}

.scrollable-table {
    max-height: 600px;
    overflow-y: auto;
}

.scrollable-table table thead th {
    position: sticky;
    top: 0;
    z-index: 10;
    background: #0e1422;
}

[data-theme="light"] .scrollable-table table thead th {
    background: #f8fafc;
    box-shadow: 0 1px 0 rgba(0,0,0,0.08);
}

.custom-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 0.9rem;
}

.custom-table th {
    background-color: rgba(99, 102, 241, 0.08);
    padding: 1.1rem 1.5rem;
    color: var(--text-secondary);
    font-weight: 700;
    border-bottom: 1px solid var(--border-color);
    text-transform: uppercase;
    font-size: 0.76rem;
    letter-spacing: 0.09em;
}

.custom-table td {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-primary);
    transition: background var(--transition-speed) ease;
    white-space: nowrap;
    font-weight: 450;
}

/* First name column gets a slightly brighter treatment */
.custom-table td:first-child {
    font-weight: 600;
    color: var(--text-secondary);
}

.custom-table tr:last-child td {
    border-bottom: none;
}

.custom-table tbody tr {
    cursor: pointer;
}

.custom-table tbody tr:hover td {
    background: rgba(99, 102, 241, 0.06);
}

[data-theme="light"] .custom-table tbody tr:hover td {
    background: rgba(79, 70, 229, 0.05);
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.25rem 0.6rem;
    border-radius: 9999px;
    font-size: 0.75rem;
    font-weight: 600;
}

.badge-success {
    background: var(--success-bg);
    color: var(--success);
    border: 1px solid var(--success-border);
}

.badge-danger {
    background: var(--danger-bg);
    color: var(--danger);
    border: 1px solid var(--danger-border);
}

.badge-warning {
    background: var(--warning-bg);
    color: var(--warning);
    border: 1px solid var(--warning-border);
}

/* Pagination Control */
.pagination-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.25rem 1.5rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.pagination-controls {
    display: flex;
    gap: 0.5rem;
}

.page-btn {
    min-width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 6px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    font-weight: 500;
}

.page-btn:hover:not(:disabled) {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-btn.active {
    background: var(--primary);
    color: #fff;
    border-color: var(--primary);
}

.page-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s ease;
}

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

.modal-box {
    background: #151c2c;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
    border-radius: 20px;
    width: 100%;
    max-width: 650px;
    max-height: 90vh;
    overflow-y: auto;
    transform: scale(0.9);
    transition: transform 0.3s ease;
    position: relative;
}

[data-theme="light"] .modal-box {
    background: #ffffff;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.modal-overlay.active .modal-box {
    transform: scale(1);
}

.modal-header {
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.25rem;
    font-weight: 700;
}

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

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

.modal-body {
    padding: 2rem;
}

/* Debtor Details Grid in Modal */
.details-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
}

.detail-item {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.detail-label {
    font-size: 0.76rem;
    text-transform: uppercase;
    font-weight: 700;
    letter-spacing: 0.07em;
    background: var(--grad-label);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.detail-value {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
}

.modal-footer {
    padding: 1.5rem 2rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
}

/* Multi-step or Double columns Form in Modal */
.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
}

@media (max-width: 600px) {
    .form-grid {
        grid-template-columns: 1fr;
    }
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group.full-width {
    grid-column: span 2;
}

@media (max-width: 600px) {
    .form-group.full-width {
        grid-column: span 1;
    }
}

.form-group label {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    background: var(--grad-label);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.required::after {
    content: " *";
    color: var(--danger);
}

/* Toggle Switch Styling */
.switch-container {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
}

.switch-label {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-primary);
}

/* Floating Action Button (FAB) or mobile triggers */
.menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
}

/* Mobile Responsiveness Styles */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }
    
    .sidebar.open {
        transform: translateX(0);
    }
    
    .main-content {
        margin-left: 0;
        padding: 1.5rem 1rem;
    }
    
    .menu-btn {
        display: block;
    }
    
    .header-section {
        gap: 1rem;
    }
    
    .details-grid {
        grid-template-columns: 1fr;
    }
}

/* Dashboard summary blocks and lists */
.stat-highlight {
    padding: 1rem;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--border-color);
    border-radius: 12px;
}

.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-info { color: var(--info); }