/* ----------------------------------------------------
   DESIGN SYSTEM & VARIABLES (LIGHT THEME / WHITE THEME)
   ---------------------------------------------------- */
:root {
    --primary: #4f46e5;
    --primary-hover: #4338ca;
    --primary-light: rgba(79, 70, 229, 0.08);
    
    --success: #10b981;
    --success-hover: #059669;
    --success-light: rgba(16, 185, 129, 0.08);
    
    --warning: #f59e0b;
    --warning-hover: #d97706;
    --warning-light: rgba(245, 158, 11, 0.08);
    
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --danger-light: rgba(239, 68, 68, 0.08);
    
    --bg-app: #f8fafc; /* Light Slate 50 */
    --bg-card: rgba(255, 255, 255, 0.85); /* Semi-transparent White */
    --border-color: rgba(0, 0, 0, 0.08); /* Subtle dark border */
    
    --text-primary: #0f172a; /* Dark Slate 900 */
    --text-secondary: #475569; /* Slate 600 */
    --text-muted: #94a3b8; /* Slate 400 */
    
    --font-thai: 'Kanit', sans-serif;
    --font-eng: 'Inter', sans-serif;
    
    --radius-s: 8px;
    --radius-m: 16px;
    --radius-l: 24px;
    
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --shadow-premium: 0 10px 30px -5px rgba(15, 23, 42, 0.08), 0 0 1px 0 rgba(15, 23, 42, 0.1);
}

/* ----------------------------------------------------
   BASE & RESET STYLES
   ---------------------------------------------------- */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: var(--font-thai);
    background-color: var(--bg-app);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    position: relative;
    -webkit-font-smoothing: antialiased;
}

/* Decorative Background Glows (Softer for Light Theme) */
.bg-glow-1 {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.06) 0%, rgba(99, 102, 241, 0) 70%);
    top: -200px;
    left: -200px;
    z-index: -1;
    pointer-events: none;
}

.bg-glow-2 {
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.04) 0%, rgba(16, 185, 129, 0) 70%);
    bottom: -100px;
    right: -100px;
    z-index: -1;
    pointer-events: none;
}

/* ----------------------------------------------------
   LAYOUT CONTAINERS
   ---------------------------------------------------- */
.app-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 20px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Glassmorphism Card Style */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-m);
    box-shadow: var(--shadow-premium);
    transition: var(--transition);
}

.glass-card:hover {
    border-color: rgba(0, 0, 0, 0.12);
}

/* ----------------------------------------------------
   HEADER & NAVIGATION
   ---------------------------------------------------- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    margin-bottom: 30px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
    border-bottom: 1px solid var(--border-color);
    border-radius: var(--radius-m);
    box-shadow: var(--shadow-premium);
}

.logo-area {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary) 0%, #312e81 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.2);
}

.logo-icon i {
    width: 22px;
    height: 22px;
    color: #fff;
}

.logo-text h1 {
    font-size: 20px;
    font-weight: 700;
    color: var(--text-primary);
    line-height: 1.1;
}

.logo-text span {
    font-size: 11px;
    color: var(--text-secondary);
}

.app-nav {
    display: flex;
    gap: 8px;
    background: rgba(0, 0, 0, 0.04);
    padding: 4px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.nav-btn {
    font-family: var(--font-thai);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 18px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.nav-btn:hover {
    color: var(--text-primary);
    background: rgba(0, 0, 0, 0.03);
}

.nav-btn.active {
    color: #fff;
    background: var(--primary);
    box-shadow: 0 4px 12px rgba(79, 70, 229, 0.25);
}

/* ----------------------------------------------------
   SUBMISSION FORM
   ---------------------------------------------------- */
.content-section {
    display: none;
    animation: fadeIn 0.4s ease;
}

.content-section.active {
    display: block;
}

.form-container {
    max-width: 600px;
    margin: 0 auto;
    padding: 40px;
}

.section-title {
    margin-bottom: 30px;
    text-align: center;
}

.section-title h2 {
    font-size: 24px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.section-title p {
    color: var(--text-secondary);
    font-size: 14px;
}

/* Inputs & Form Groups */
.form-group {
    margin-bottom: 22px;
    display: flex;
    flex-direction: column;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.form-group label i {
    width: 16px;
    height: 16px;
    color: var(--primary);
}

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

.form-group input,
.form-group select,
.form-group textarea {
    font-family: var(--font-thai);
    font-size: 15px;
    padding: 12px 16px;
    border-radius: var(--radius-s);
    border: 1px solid rgba(0, 0, 0, 0.1);
    background: rgba(255, 255, 255, 0.95);
    color: var(--text-primary);
    outline: none;
    transition: var(--transition);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--text-muted);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.12);
    background: #fff;
}

/* File Upload Zone */
.upload-dropzone {
    border: 2px dashed rgba(0, 0, 0, 0.15);
    border-radius: var(--radius-s);
    padding: 30px 20px;
    text-align: center;
    background: rgba(248, 250, 252, 0.5);
    cursor: pointer;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    min-height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.upload-dropzone:hover,
.upload-dropzone.dragover {
    border-color: var(--primary);
    background: rgba(79, 70, 229, 0.03);
}

.upload-prompt {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.upload-icon {
    width: 48px;
    height: 48px;
    color: var(--text-secondary);
    margin-bottom: 5px;
    transition: var(--transition);
}

.upload-dropzone:hover .upload-icon {
    color: var(--primary);
    transform: translateY(-5px);
}

.upload-text {
    font-size: 14px;
    color: var(--text-secondary);
}

.upload-text span {
    color: var(--primary);
    font-weight: 600;
}

.upload-subtext {
    font-size: 11px;
    color: var(--text-muted);
}

.upload-preview {
    width: 100%;
    height: 100%;
    position: absolute;
    top: 0;
    left: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: #f1f5f9;
}

.upload-preview img {
    max-width: 100%;
    max-height: 100%;
    object-fit: contain;
}

.preview-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    background: linear-gradient(transparent, rgba(0, 0, 0, 0.7));
    padding: 15px;
    display: flex;
    justify-content: center;
    opacity: 0;
    transition: var(--transition);
}

.upload-preview:hover .preview-overlay {
    opacity: 1;
}

/* Buttons */
.btn {
    font-family: var(--font-thai);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 500;
    border-radius: var(--radius-s);
    border: 1px solid transparent;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
}

.btn-block {
    display: flex;
    width: 100%;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    box-shadow: 0 4px 15px rgba(79, 70, 229, 0.3);
}

.btn-secondary {
    background: #f1f5f9;
    color: var(--text-primary);
    border-color: rgba(0, 0, 0, 0.06);
}

.btn-secondary:hover {
    background: #e2e8f0;
    color: var(--text-primary);
}

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

.btn-success:hover {
    background: var(--success-hover);
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.3);
}

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

.btn-danger:hover {
    background: var(--danger-hover);
    box-shadow: 0 4px 15px rgba(239, 68, 68, 0.3);
}

.btn-outline-danger {
    background: transparent;
    color: var(--danger);
    border-color: var(--danger);
}

.btn-outline-danger:hover {
    background: var(--danger-light);
}

.btn-remove-img {
    background: var(--danger);
    color: #fff;
    border: none;
    padding: 8px 16px;
    font-size: 13px;
    border-radius: 6px;
    cursor: pointer;
    font-family: var(--font-thai);
    display: flex;
    align-items: center;
    gap: 6px;
}

.btn-remove-img:hover {
    background: var(--danger-hover);
}

/* ----------------------------------------------------
   ADMIN BACKOFFICE - AUTH
   ---------------------------------------------------- */
.admin-auth-card {
    max-width: 450px;
    margin: 80px auto;
    padding: 40px 30px;
    text-align: center;
}

.auth-icon {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background: var(--primary-light);
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
}

.auth-icon i {
    width: 28px;
    height: 28px;
    color: var(--primary);
}

.admin-auth-card h3 {
    font-size: 20px;
    margin-bottom: 8px;
}

.admin-auth-card p {
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.pin-input-group {
    display: flex;
    gap: 8px;
    max-width: 320px;
    margin: 0 auto;
}

.pin-input-group input {
    flex-grow: 1;
    padding: 10px 14px;
    text-align: center;
    font-size: 16px;
    letter-spacing: 2px;
}

.auth-error-msg {
    color: var(--danger);
    font-size: 12px;
    margin-top: 14px;
}

/* ----------------------------------------------------
   ADMIN BACKOFFICE - DASHBOARD
   ---------------------------------------------------- */
.admin-dashboard-container {
    animation: fadeIn 0.4s ease;
}

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px;
}

.stat-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.stat-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-value {
    font-size: 24px;
    font-family: var(--font-eng);
    font-weight: 700;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.stat-icon i {
    width: 22px;
    height: 22px;
}

.bg-success-light { background: var(--success-light); color: var(--success); }
.bg-warning-light { background: var(--warning-light); color: var(--warning); }
.bg-danger-light { background: var(--danger-light); color: var(--danger); }
.bg-primary-light { background: var(--primary-light); color: var(--primary); }

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

/* Toolbar Panel */
.toolbar-panel {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 24px;
    margin-bottom: 20px;
    flex-wrap: wrap;
    gap: 16px;
}

.filters-group {
    display: flex;
    gap: 12px;
    flex-grow: 1;
    flex-wrap: wrap;
}

.filter-item {
    position: relative;
}

.filter-item select {
    font-size: 13px;
    padding: 10px 14px;
    cursor: pointer;
    min-width: 140px;
}

.search-input {
    min-width: 240px;
}

.search-input input {
    width: 100%;
    padding-left: 38px;
    font-size: 13px;
}

.search-icon {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    width: 16px;
    height: 16px;
    color: var(--text-muted);
}

.actions-group {
    display: flex;
    gap: 10px;
}

/* Data Table Styles */
.table-container {
    overflow-x: auto;
    padding: 10px 0;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    font-size: 14px;
}

.data-table th,
.data-table td {
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
}

.data-table th {
    font-weight: 500;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    transition: var(--transition);
}

.data-table tbody tr:hover {
    background: rgba(0, 0, 0, 0.015);
}

.data-table td {
    color: var(--text-primary);
}

/* Status Badges */
.badge {
    display: inline-flex;
    padding: 6px 12px;
    border-radius: 50px;
    font-size: 12px;
    font-weight: 500;
}

.badge-pending {
    background: var(--warning-light);
    color: var(--warning);
}

.badge-verified {
    background: var(--success-light);
    color: var(--success);
}

.badge-invalid {
    background: var(--danger-light);
    color: var(--danger);
}

/* Slip Thumbnail button */
.slip-thumbnail {
    width: 40px;
    height: 40px;
    border-radius: 6px;
    object-fit: cover;
    border: 1px solid var(--border-color);
    cursor: pointer;
    transition: var(--transition);
}

.slip-thumbnail:hover {
    transform: scale(1.1);
    border-color: var(--primary);
}

/* Button Icon-Only */
.btn-icon-only {
    width: 36px;
    height: 36px;
    border-radius: 6px;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
}

.btn-icon-only:hover {
    background: rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
    border-color: var(--text-secondary);
}

.no-data-msg {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    color: var(--text-muted);
    gap: 12px;
}

.no-data-msg i {
    width: 48px;
    height: 48px;
}

/* ----------------------------------------------------
   MODALS SYSTEM
   ---------------------------------------------------- */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 23, 42, 0.4); /* Dims the light screen nicely */
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 20px;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 100%;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.large-modal {
    max-width: 900px;
}

.medium-modal {
    max-width: 550px;
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}

.modal-header h3 i {
    color: var(--primary);
    width: 20px;
    height: 20px;
}

.btn-close-modal {
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 28px;
    line-height: 1;
    cursor: pointer;
    transition: var(--transition);
}

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

.modal-body {
    padding: 24px;
    overflow-y: auto;
    flex-grow: 1;
}

/* Verification Modal Split Layout */
.verification-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 24px;
    height: 100%;
}

@media (max-width: 768px) {
    .verification-grid {
        grid-template-columns: 1fr;
    }
}

/* Image Zoom & Rotate Viewer Workspace */
.slip-viewer-container {
    display: flex;
    flex-direction: column;
    height: 400px;
    background: #e2e8f0; /* Light grey base for light theme */
    border-radius: var(--radius-s);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.viewer-toolbar {
    position: absolute;
    top: 10px;
    right: 10px;
    display: flex;
    gap: 6px;
    background: rgba(255, 255, 255, 0.9);
    padding: 6px;
    border-radius: 8px;
    border: 1px solid var(--border-color);
    z-index: 10;
}

.image-wrapper {
    flex-grow: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    position: relative;
    user-select: none;
}

.image-wrapper img {
    max-height: 95%;
    max-width: 95%;
    object-fit: contain;
    transition: transform 0.1s ease-out;
    transform-origin: center center;
}

.viewer-hint {
    background: rgba(255, 255, 255, 0.7);
    padding: 8px;
    text-align: center;
    font-size: 11px;
    color: var(--text-secondary);
    border-top: 1px solid var(--border-color);
}

/* Right Pane - Verification details card */
.verification-details {
    display: flex;
    flex-direction: column;
    justify-content: space-between;
}

.detail-card {
    background: rgba(248, 250, 252, 0.8);
    padding: 16px;
    border-radius: var(--radius-s);
    border: 1px solid var(--border-color);
}

.detail-card h4 {
    margin-bottom: 12px;
    font-size: 14px;
    color: var(--text-secondary);
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 8px;
}

.detail-row {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10px;
    font-size: 14px;
}

.detail-row:last-child {
    margin-bottom: 0;
}

.detail-label {
    color: var(--text-secondary);
}

.detail-val {
    color: var(--text-primary);
    font-weight: 600;
}

.highlight-amount {
    font-family: var(--font-eng);
    font-weight: 700;
    color: var(--success-hover);
    font-size: 16px;
}

.status-indicator-section {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin: 18px 0;
}

.verification-actions {
    display: flex;
    gap: 12px;
    margin-bottom: 12px;
}

.flex-grow {
    flex-grow: 1;
}

.verification-footer-actions {
    border-top: 1px solid var(--border-color);
    padding-top: 12px;
    margin-top: 12px;
}

.margin-top-m { margin-top: 16px; }
.margin-bottom-s { margin-bottom: 12px; }

/* ----------------------------------------------------
   SETTINGS SYSTEMS
   ---------------------------------------------------- */
.settings-tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 20px;
    gap: 8px;
}

.settings-tab-btn {
    font-family: var(--font-thai);
    padding: 10px 16px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    border-bottom: 2px solid transparent;
    transition: var(--transition);
}

.settings-tab-btn:hover {
    color: var(--text-primary);
}

.settings-tab-btn.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

.settings-section-content {
    display: none;
}

.settings-section-content.active {
    display: block;
}

.settings-section-content h4 {
    margin-bottom: 8px;
    font-size: 15px;
    font-weight: 600;
}

.help-text {
    font-size: 12px;
    color: var(--text-secondary);
    margin-bottom: 16px;
    line-height: 1.4;
}

.divider {
    border: 0;
    height: 1px;
    background: var(--border-color);
    margin: 20px 0;
}

/* Van Route List Management */
.van-input-inline {
    display: flex;
    gap: 8px;
}

.van-input-inline input {
    flex-grow: 1;
}

.van-routes-list {
    list-style: none;
    max-height: 200px;
    overflow-y: auto;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-s);
    background: rgba(255, 255, 255, 0.6);
}

.van-routes-list li {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

.van-routes-list li:last-child {
    border-bottom: none;
}

.van-routes-list li:hover {
    background: rgba(0, 0, 0, 0.01);
}

.btn-delete-route {
    background: transparent;
    border: none;
    color: var(--danger);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4px;
    border-radius: 4px;
    transition: var(--transition);
}

.btn-delete-route:hover {
    background: var(--danger-light);
}

.btn-delete-route i {
    width: 16px;
    height: 16px;
}

.backup-actions {
    display: flex;
    gap: 12px;
}

/* ----------------------------------------------------
   TOAST SYSTEM
   ---------------------------------------------------- */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 1100;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.toast {
    font-family: var(--font-thai);
    min-width: 280px;
    background: #ffffff;
    border: 1px solid rgba(0, 0, 0, 0.06);
    color: var(--text-primary);
    padding: 12px 18px;
    border-radius: var(--radius-s);
    display: flex;
    align-items: center;
    gap: 10px;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.06);
    animation: slideInRight 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

.toast-success {
    border-left: 4px solid var(--success);
}

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

.toast-error {
    border-left: 4px solid var(--danger);
}

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

/* ----------------------------------------------------
   ANIMATIONS
   ---------------------------------------------------- */
@keyframes fadeIn {
    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; }
}

.animate-scale-up {
    animation: scaleUp 0.3s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

@keyframes scaleUp {
    from { transform: scale(0.9) translateY(20px); opacity: 0; }
    to { transform: scale(1) translateY(0); opacity: 1; }
}

.hidden {
    display: none !important;
}