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

:root {
    --marketing-green: #a2cf4f;
    --marketing-dark-grey: #545457;
    --marketing-white: #fbfbfb;
    --marketing-green-hover: #8fb843;
    --marketing-grey-light: #6a6a6d;
    --marketing-red: #dc2626;
    
    --primary-color: #a2cf4f;
    --primary-hover: #8fb843;
    --secondary-color: #6a6a6d;
    --danger-color: #dc2626;
    --danger-hover: #b91c1c;
    --success-color: #a2cf4f;
    --background: #f8fafc;
    --surface: #ffffff;
    --border: #e2e8f0;
    --text-primary: #0f172a;
    --text-secondary: #545457;
    --sidebar-width: 250px;
    --header-height: 60px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.5;
}

/* Screens */
.screen {
    display: none;
}

.screen.active {
    display: block;
}

/* Login Screen */
.login-container {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--marketing-green-hover) 0%, var(--marketing-green) 100%);
}

.login-box {
    background: var(--surface);
    padding: 3rem;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 400px;
}

.login-box h1 {
    margin-bottom: 2rem;
    text-align: center;
    color: var(--text-primary);
    font-size: 1.75rem;
}

/* Form Elements */
.form-group {
    margin-bottom: 1.5rem;
}

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

.form-group input {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--marketing-green);
    box-shadow: 0 0 0 3px rgba(162, 207, 79, 0.2);
}

/* Buttons */
.btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.btn-primary {
    background: var(--primary-color);
    color: white;
    width: 100%;
}

.btn-primary:hover {
    background: var(--marketing-green-hover);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(162, 207, 79, 0.4);
}

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

.btn-secondary:hover {
    background: #475569;
}

.btn-secondary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

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

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

.btn-small {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Header */
.header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    height: var(--header-height);
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 2rem;
    height: 100%;
}

.header h1 {
    font-size: 1.5rem;
    color: var(--text-primary);
}

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

.username {
    color: var(--text-secondary);
    font-weight: 500;
}

/* Main Container */
.main-container {
    display: flex;
    margin-top: var(--header-height);
    min-height: calc(100vh - var(--header-height));
}

/* Sidebar */
.sidebar {
    width: var(--sidebar-width);
    background: var(--surface);
    border-right: 1px solid var(--border);
    overflow-y: auto;
    position: fixed;
    left: 0;
    top: var(--header-height);
    bottom: 0;
}

.sidebar-nav {
    padding: 1rem 0;
}

.nav-item {
    width: 100%;
    padding: 0.75rem 1.5rem;
    border: none;
    background: transparent;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.95rem;
    color: var(--text-primary);
    transition: all 0.2s;
}

.nav-item:hover {
    background: var(--background);
}

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

.nav-item .icon {
    font-size: 1.25rem;
}

.nav-section {
    margin-top: 1rem;
}

.nav-section-title {
    padding: 0.75rem 1.5rem;
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    color: var(--text-secondary);
    letter-spacing: 0.05em;
}

.collections-list {
    max-height: calc(100vh - var(--header-height) - 200px);
    overflow-y: auto;
}

.collection-item {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background 0.2s;
    font-size: 0.9rem;
}

.collection-item:hover {
    background: var(--background);
}

.collection-item.active {
    background: var(--marketing-green);
    color: white;
}

.collection-count {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background: var(--background);
    padding: 0.125rem 0.5rem;
    border-radius: 12px;
}

.collection-item.active .collection-count {
    background: rgba(255, 255, 255, 0.2);
    color: white;
}

/* Content Area */
.content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
    overflow-x: auto;
}

.view {
    display: none;
}

.view.active {
    display: block;
}

.view h2 {
    margin-bottom: 1.5rem;
    color: var(--text-primary);
}

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

.view-actions {
    display: flex;
    gap: 1rem;
}

.search-input {
    padding: 0.625rem 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-size: 0.95rem;
    min-width: 250px;
}

.search-input:focus {
    outline: none;
    border-color: var(--marketing-green);
}

/* Stats Cards */
.stats-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--surface);
    padding: 1.5rem;
    border-radius: 8px;
    border: 1px solid var(--border);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--marketing-green);
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* Tables */
.table-container,
.collections-table-container {
    background: var(--surface);
    border-radius: 8px;
    border: 1px solid var(--border);
    overflow-x: auto;
    overflow-y: visible;
    margin-bottom: 1.5rem;
}

.collections-table-container h3 {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border);
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 800px;
}

.data-table thead {
    background: var(--background);
    position: sticky;
    top: 0;
    z-index: 10;
}

.data-table th {
    padding: 1rem;
    text-align: left;
    font-weight: 600;
    color: var(--text-primary);
    border-bottom: 2px solid var(--border);
    white-space: nowrap;
    background: var(--background);
}

.data-table td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--border);
    max-width: 300px;
    overflow: hidden;
    text-overflow: ellipsis;
}

.data-table td:first-child {
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

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

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

.data-table .loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem;
}

.action-buttons {
    display: flex;
    gap: 0.5rem;
}

/* Pagination */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 1rem;
    padding: 1rem;
}

#page-info {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
    overflow-y: auto;
    padding: 2rem;
}

.modal.active {
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-content {
    background: var(--surface);
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
    width: 100%;
    max-width: 800px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
}

.modal-small {
    max-width: 400px;
}

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

.modal-header h2 {
    margin: 0;
    font-size: 1.5rem;
}

.close-btn {
    background: none;
    border: none;
    font-size: 2rem;
    color: var(--text-secondary);
    cursor: pointer;
    line-height: 1;
    padding: 0;
    width: 2rem;
    height: 2rem;
}

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

.modal-body {
    padding: 2rem;
    overflow-y: auto;
    flex: 1;
}

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

.document-editor {
    width: 100%;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 6px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.875rem;
    line-height: 1.5;
    resize: vertical;
    min-height: 400px;
}

.document-editor:focus {
    outline: none;
    border-color: var(--marketing-green);
}

/* Messages */
.error-message {
    color: var(--danger-color);
    font-size: 0.875rem;
    margin-top: 0.5rem;
    display: none;
}

.error-message.active {
    display: block;
}

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

/* Code/JSON Display */
.json-preview {
    background: #f8f9fa;
    padding: 0.5rem;
    border-radius: 4px;
    font-family: 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 0.8rem;
    max-width: 600px;
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-all;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--background);
}

::-webkit-scrollbar-thumb {
    background: var(--border);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--secondary-color);
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s;
    }

    .content {
        margin-left: 0;
    }

    .view-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }

    .view-actions {
        width: 100%;
        flex-direction: column;
    }

    .search-input {
        width: 100%;
    }

    .stats-cards {
        grid-template-columns: 1fr;
    }
}