:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --danger: #ef4444;
    --danger-hover: #dc2626;
    --success: #22c55e;
    --warning: #f59e0b;
    --bg: #f8fafc;
    --bg-card: #ffffff;
    --bg-sidebar: #1e293b;
    --text: #1e293b;
    --text-secondary: #64748b;
    --text-light: #94a3b8;
    --border: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --radius: 12px;
    --radius-sm: 8px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.5;
}

/* Login Page */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #1e293b 0%, #334155 100%);
}

.login-card {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 400px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 32px;
}

.login-logo .logo-icon {
    font-size: 36px;
}

.login-logo .logo-text {
    font-size: 24px;
    font-weight: 700;
    color: var(--text);
}

.login-error {
    color: var(--danger);
    font-size: 14px;
    margin-bottom: 16px;
    text-align: center;
}

.btn-block {
    width: 100%;
    justify-content: center;
    text-align: center;
}

/* App Layout */
.app {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 260px;
    background: var(--bg-sidebar);
    color: white;
    padding: 24px;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-bottom: 24px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 24px;
}

.logo-icon {
    font-size: 28px;
}

.logo-text {
    font-size: 20px;
    font-weight: 700;
}

.nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex: 1;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    transition: all 0.2s;
}

.nav-item:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
}

.nav-item.active {
    background: var(--primary);
    color: white;
}

.nav-icon {
    font-size: 18px;
}

.sidebar-footer {
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.user-info {
    margin-bottom: 12px;
}

.user-email {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.7);
    word-break: break-all;
}

.btn-sm {
    padding: 8px 16px;
    font-size: 13px;
}

/* Main Content */
.main {
    flex: 1;
    margin-left: 260px;
    padding: 24px;
    height: 100vh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.page {
    display: none;
    flex-direction: column;
    flex: 1;
    overflow: hidden;
}

.page.active {
    display: flex;
}

.content {
    flex: 1;
    overflow: auto;
    display: flex;
    flex-direction: column;
}

/* Waters list page specific */
#waters-page .content {
    overflow: hidden;
}

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    flex-shrink: 0;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 700;
}

.header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.search-input {
    width: 300px;
    padding: 10px 16px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.search-input:focus {
    border-color: var(--primary);
}

/* Filter Dropdowns */
.filter-dropdown {
    position: relative;
}

.filter-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}

.filter-btn:hover {
    border-color: var(--primary);
}

.filter-arrow {
    font-size: 10px;
    transition: transform 0.2s;
}

.filter-dropdown.open .filter-arrow {
    transform: rotate(180deg);
}

.filter-count {
    background: var(--primary);
    color: white;
    font-size: 11px;
    padding: 2px 6px;
    border-radius: 10px;
    min-width: 18px;
    text-align: center;
    display: none;
}

.filter-count.active {
    display: inline-block;
}

.filter-menu {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    min-width: 250px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    z-index: 50;
    display: none;
}

.filter-dropdown.open .filter-menu {
    display: block;
}

.filter-search {
    padding: 12px;
    border-bottom: 1px solid var(--border);
}

.filter-search input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    outline: none;
}

.filter-search input:focus {
    border-color: var(--primary);
}

.filter-options {
    max-height: 250px;
    overflow-y: auto;
    padding: 8px 0;
}

.filter-option {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    cursor: pointer;
    transition: background 0.15s;
}

.filter-option:hover {
    background: var(--bg);
}

.filter-option input[type="checkbox"] {
    width: 16px;
    height: 16px;
    accent-color: var(--primary);
    cursor: pointer;
}

.filter-option label {
    flex: 1;
    cursor: pointer;
    font-size: 13px;
}

.filter-option.hidden {
    display: none;
}

.filter-actions {
    display: flex;
    gap: 8px;
    padding: 12px;
    border-top: 1px solid var(--border);
}

.filter-clear {
    flex: 1;
    padding: 8px;
    background: transparent;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-clear:hover {
    background: var(--bg);
}

.filter-apply {
    flex: 1;
    padding: 8px;
    background: var(--primary);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 13px;
    cursor: pointer;
    transition: all 0.2s;
}

.filter-apply:hover {
    background: var(--primary-hover);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
}

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

.btn-secondary:hover {
    background: var(--border);
}

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

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

.btn-icon {
    padding: 8px;
    min-width: 36px;
    justify-content: center;
}

/* Table */
.table-wrapper {
    width: 100%;
    overflow: auto;
    flex: 1;
}

.table-container {
    background: var(--bg-card);
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow);
    overflow: hidden;
    border: 1px solid #d0d0d0;
    min-width: max-content;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

.data-table th,
.data-table td {
    padding: 10px 12px;
    text-align: left;
    border: 1px solid #d0d0d0;
}

.data-table th {
    background: #f0f0f0;
    font-weight: 600;
    font-size: 12px;
    color: #333;
    text-transform: none;
    letter-spacing: normal;
    position: sticky;
    top: 0;
    z-index: 1;
}

.data-table tbody tr:nth-child(even) {
    background: #fafafa;
}

.data-table tbody tr:hover {
    background: #e8f4fc;
}

.data-table tbody tr:last-child td {
    border-bottom: 1px solid #d0d0d0;
}

.table-logo {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    object-fit: cover;
    background: var(--bg);
}

.table-logo-placeholder {
    width: 40px;
    height: 40px;
    border-radius: 8px;
    background: var(--bg);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 10px;
    color: var(--text-light);
    text-align: center;
    line-height: 1.2;
}

.water-type-badge {
    padding: 4px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.water-type-badge.still {
    background: #dbeafe;
    color: #1e40af;
}

.water-type-badge.gas {
    background: #fef3c7;
    color: #92400e;
}

.water-type-badge.sparkling {
    background: #d1fae5;
    color: #065f46;
}

.table-link {
    text-decoration: none;
    font-size: 16px;
}

.table-link:hover {
    opacity: 0.7;
}

.added-by {
    font-size: 11px;
    color: var(--text-secondary);
    max-width: 120px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    display: block;
}

.table-actions {
    display: flex;
    gap: 4px;
    white-space: nowrap;
}

.table-actions {
    display: flex;
    gap: 8px;
}

.added-by {
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 150px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* Notes in table */
.notes-list {
    max-width: 300px;
    max-height: 200px;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.note-item {
    padding: 8px;
    background: #f8f9fa;
    border-radius: 6px;
    border-left: 3px solid var(--primary);
    font-size: 12px;
}

.note-content {
    color: var(--text);
    margin-bottom: 4px;
    word-wrap: break-word;
    white-space: pre-wrap;
    line-height: 1.4;
}

.note-content.note-empty {
    color: var(--text-secondary);
    font-style: italic;
}

.note-user {
    color: var(--text-secondary);
    font-size: 10px;
    margin-top: 4px;
}

/* Form */
.water-form {
    max-width: 900px;
}

.form-section {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 24px;
    box-shadow: var(--shadow);
}

.form-section h2 {
    font-size: 18px;
    font-weight: 600;
    margin-bottom: 20px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--border);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
}

.form-grid.minerals {
    grid-template-columns: repeat(3, 1fr);
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-group label {
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
}

.form-group input,
.form-group select {
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus {
    border-color: var(--primary);
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 24px;
}

/* Logo Upload */
.logo-upload {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.logo-upload input[type="file"] {
    padding: 10px;
    border: 2px dashed var(--border);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.logo-upload input[type="file"]:hover {
    border-color: var(--primary);
}

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

.logo-preview {
    width: 80px;
    height: 80px;
    border-radius: var(--radius-sm);
    object-fit: cover;
    border: 1px solid var(--border);
}

.logo-placeholder {
    color: var(--text-light);
    font-size: 14px;
}

.upload-progress {
    display: flex;
    align-items: center;
    gap: 12px;
}

.progress-bar {
    flex: 1;
    height: 8px;
    background: var(--border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    width: 0%;
    transition: width 0.3s;
}

.progress-text {
    font-size: 13px;
    color: var(--text-secondary);
    min-width: 80px;
}

/* Loading */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px;
    color: var(--text-secondary);
}

.spinner {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin-bottom: 16px;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Empty State */
.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 80px 20px;
    text-align: center;
}

.empty-icon {
    font-size: 64px;
    margin-bottom: 16px;
    opacity: 0.5;
}

.empty-state p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-card);
    border-radius: var(--radius);
    padding: 24px;
    max-width: 400px;
    width: 100%;
    box-shadow: var(--shadow-lg);
}

.modal-content.modal-wide {
    max-width: 680px;
}

.approve-hint {
    color: var(--text-secondary);
    margin-bottom: 20px;
    font-size: 14px;
}

.approve-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px 16px;
    margin-bottom: 16px;
}

.approve-logo-group {
    grid-column: 1 / -1;
}

.submission-img-item {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.submission-img-label {
    font-size: 11px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.submission-thumb {
    display: block;
    width: 80px;
    height: 80px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    cursor: pointer;
    transition: opacity 0.2s;
}

.submission-thumb:hover {
    opacity: 0.8;
}

.approve-images-preview {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-bottom: 20px;
}

.approve-images-preview .submission-thumb {
    width: 120px;
    height: 120px;
}

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

.modal-content h2 {
    margin-bottom: 12px;
}

.modal-content p {
    color: var(--text-secondary);
    margin-bottom: 24px;
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    right: 24px;
    padding: 14px 24px;
    background: var(--text);
    color: white;
    border-radius: var(--radius-sm);
    box-shadow: var(--shadow-lg);
    transform: translateY(100px);
    opacity: 0;
    transition: all 0.3s;
    z-index: 1001;
}

.toast.show {
    transform: translateY(0);
    opacity: 1;
}

.toast.success {
    background: var(--success);
}

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

/* =============================================
   WATER SUBMISSIONS MODERATION
   ============================================= */

/* Status Tabs */
.status-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 20px;
    border-bottom: 2px solid var(--border);
    padding-bottom: 12px;
}

.status-tab {
    padding: 8px 18px;
    border: none;
    background: none;
    cursor: pointer;
    font-size: 14px;
    font-weight: 500;
    color: var(--text-secondary);
    border-radius: 8px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: background 0.15s, color 0.15s;
}

.status-tab:hover:not(.active) {
    background: var(--border);
    color: var(--text);
}

.status-tab.active {
    background: var(--primary);
    color: #fff;
}

.tab-badge {
    font-size: 12px;
    padding: 1px 7px;
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.25);
    color: inherit;
}

.status-tab:not(.active) .tab-badge {
    background: var(--bg);
    color: var(--text-secondary);
}

/* Submission Cards */
.submissions-list {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.submission-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    gap: 16px;
    align-items: flex-start;
    box-shadow: var(--shadow);
}

.submission-logo-wrap {
    flex-shrink: 0;
}

.submission-logo {
    width: 80px;
    height: 80px;
    object-fit: contain;
    border-radius: 8px;
    border: 1px solid var(--border);
    background: var(--bg);
    padding: 4px;
}

.submission-logo-placeholder {
    width: 80px;
    height: 80px;
    background: var(--bg);
    border: 2px dashed var(--border);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 11px;
    color: var(--text-light);
    text-align: center;
}

.submission-info {
    flex: 1;
    min-width: 0;
}

.submission-header {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 8px;
}

.submission-header h3 {
    font-size: 16px;
    font-weight: 600;
    color: var(--text);
}

.submission-details {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    font-size: 13px;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

.submission-details a {
    color: var(--primary);
    text-decoration: none;
}

.submission-details a:hover {
    text-decoration: underline;
}

.submission-meta {
    font-size: 12px;
    color: var(--text-light);
    display: flex;
    gap: 16px;
}

.submission-comment {
    margin-top: 8px;
    font-size: 13px;
    color: var(--text-secondary);
    background: #fff5f5;
    border-left: 3px solid var(--danger);
    padding: 8px 12px;
    border-radius: 0 6px 6px 0;
}

.submission-side {
    flex-shrink: 0;
}

.submission-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

/* Status Badges */
.status-badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
    white-space: nowrap;
}

.status-pending {
    background: #fef3c7;
    color: #92400e;
}

.status-approved {
    background: #dcfce7;
    color: #166534;
}

.status-rejected {
    background: #fee2e2;
    color: #991b1b;
}

/* Success button */
.btn-success {
    background: var(--success);
    color: #fff;
    border: none;
}

.btn-success:hover {
    background: #16a34a;
}

/* Reject textarea */
.reject-textarea {
    width: 100%;
    margin-top: 12px;
    padding: 10px 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    font-size: 14px;
    resize: vertical;
    outline: none;
    color: var(--text);
    background: var(--bg);
}

.reject-textarea:focus {
    border-color: var(--primary);
}

/* Responsive */
@media (max-width: 1024px) {
    .form-grid.minerals {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .sidebar {
        display: none;
    }
    
    .main {
        margin-left: 0;
    }
    
    .page-header {
        flex-direction: column;
        gap: 16px;
        align-items: flex-start;
    }
    
    .header-actions {
        width: 100%;
        flex-direction: column;
    }
    
    .search-input {
        width: 100%;
    }
    
    .form-grid,
    .form-grid.minerals {
        grid-template-columns: 1fr;
    }
    
    .table-container {
        overflow-x: auto;
    }
    
    .data-table {
        min-width: 800px;
    }
}