/* Reset & Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --primary-color: #2563eb;
    --secondary-color: #64748b;
    --success-color: #10b981;
    --danger-color: #ef4444;
    --background: #f8fafc;
    --card-background: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --border-color: #e2e8f0;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 25px rgba(0, 0, 0, 0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--background);
    color: var(--text-primary);
    line-height: 1.6;
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
header {
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow);
}

header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

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

#searchBar {
    padding: 0.5rem 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    width: 300px;
    font-size: 0.95rem;
}

#searchBar:focus {
    outline: none;
    border-color: var(--primary-color);
}

#userName {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Buttons */
.btn, button {
    padding: 0.6rem 1.2rem;
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.95rem;
    transition: all 0.2s;
}

.btn:hover, button:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.btn-small {
    padding: 0.4rem 0.8rem;
    font-size: 0.85rem;
}

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

.btn-danger:hover {
    background: #dc2626;
}

#logoutBtn {
    background: var(--secondary-color);
}

#adminBtn {
    background: var(--success-color);
}

/* Tabs */
.tabs-container {
    background: var(--card-background);
    border-bottom: 1px solid var(--border-color);
    padding: 0 20px;
    overflow-x: auto;
}

.tabs {
    display: flex;
    gap: 0.5rem;
}

.tab {
    padding: 1rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    font-size: 1rem;
    color: var(--text-secondary);
    transition: all 0.2s;
    white-space: nowrap;
}

.tab:hover {
    color: var(--text-primary);
    background: var(--background);
    transform: none;
}

.tab.active {
    color: var(--primary-color);
    border-bottom-color: var(--primary-color);
    background: transparent;
}

/* Controls */
.controls {
    padding: 1rem 20px;
    display: flex;
    gap: 1rem;
    align-items: center;
}

#recordCount {
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Groups */
.group {
    margin-bottom: 1.5rem;
    background: var(--card-background);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
}

.group-header, .subgroup-header {
    padding: 1rem 1.5rem;
    background: var(--background);
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    border-bottom: 1px solid var(--border-color);
    transition: background 0.2s;
}

.group-header:hover, .subgroup-header:hover {
    background: #e2e8f0;
}

.group-title {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
}

.subgroup-title {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-primary);
}

.group-count, .subgroup-count {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.expand-icon {
    margin-left: auto;
    color: var(--text-secondary);
    font-size: 0.8rem;
}

.group-content, .subgroup-content {
    max-height: 10000px;
    transition: max-height 0.3s ease;
    overflow: hidden;
}

.group-content.collapsed, .subgroup-content.collapsed {
    max-height: 0;
}

.subgroup {
    border-top: 1px solid var(--border-color);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
}

.card {
    background: var(--card-background);
    border-radius: 8px;
    overflow: hidden;
    box-shadow: var(--shadow);
    cursor: pointer;
    transition: all 0.2s;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    background: var(--background);
}

.card-content {
    padding: 1rem;
}

.card-content h3 {
    font-size: 1.1rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.card-subtitle {
    color: var(--text-secondary);
    font-size: 0.9rem;
    margin-bottom: 0.75rem;
}

.card-field {
    font-size: 0.85rem;
    margin: 0.5rem 0;
    color: var(--text-secondary);
}

.card-field strong {
    color: var(--text-primary);
    font-weight: 500;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    animation: fadeIn 0.2s;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--card-background);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 12px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s;
}

@keyframes slideUp {
    from {
        transform: translateY(50px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

.close {
    color: var(--text-secondary);
    float: right;
    font-size: 28px;
    font-weight: bold;
    cursor: pointer;
    line-height: 1;
}

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

.modal-actions {
    margin-top: 1.5rem;
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
}

/* Forms */
.form-field {
    margin-bottom: 1.5rem;
}

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

.form-field input[type="text"],
.form-field input[type="email"],
.form-field input[type="number"],
.form-field input[type="datetime-local"],
.form-field select,
.form-field textarea {
    width: 100%;
    padding: 0.6rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.95rem;
}

.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
    outline: none;
    border-color: var(--primary-color);
}

.form-field input[type="checkbox"] {
    width: auto;
    margin-right: 0.5rem;
}

.field-value {
    padding: 0.6rem;
    background: var(--background);
    border-radius: 6px;
    min-height: 38px;
}

.field-value.readonly {
    color: var(--text-secondary);
}

.field-value a {
    color: var(--primary-color);
    text-decoration: none;
}

.field-value a:hover {
    text-decoration: underline;
}

/* Admin Section */
.admin-tabs {
    display: flex;
    gap: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.admin-tab {
    padding: 0.75rem 1.5rem;
    background: transparent;
    border: none;
    border-bottom: 3px solid transparent;
    cursor: pointer;
    color: var(--text-secondary);
    transition: all 0.2s;
}

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

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

.admin-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
    background: var(--card-background);
}

.admin-table th,
.admin-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.admin-table th {
    background: var(--background);
    font-weight: 600;
    color: var(--text-primary);
}

.admin-table td {
    color: var(--text-secondary);
}

.admin-table .actions {
    display: flex;
    gap: 0.5rem;
}

.report-access {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    margin-bottom: 1rem;
}

.report-access h4 {
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

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

.permissions label {
    display: flex;
    align-items: center;
    color: var(--text-secondary);
}

.report-config-item {
    padding: 1.5rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    margin-bottom: 1rem;
    background: var(--background);
}

.report-config-item h3 {
    margin-bottom: 1rem;
    color: var(--primary-color);
}

.config-details {
    margin-bottom: 1rem;
}

.config-details p {
    margin: 0.5rem 0;
    color: var(--text-secondary);
}

/* Time Logs Table */
.timelogs-table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1rem;
}

.timelogs-table th,
.timelogs-table td {
    padding: 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.timelogs-table th {
    background: var(--background);
    font-weight: 600;
}

/* Spinner */
.spinner {
    text-align: center;
    padding: 3rem;
    color: var(--text-secondary);
}

/* Notification */
.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 1.5rem;
    background: var(--card-background);
    border-radius: 8px;
    box-shadow: var(--shadow-lg);
    animation: slideUp 0.3s;
    z-index: 2000;
}

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

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

.notification.info {
    border-left: 4px solid var(--primary-color);
}

/* Login Page */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: linear-gradient(135deg, var(--primary-color), #1e40af);
}

.login-container {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
}

.login-box {
    background: var(--card-background);
    padding: 3rem 2rem;
    border-radius: 12px;
    box-shadow: var(--shadow-lg);
    text-align: center;
}

.login-box h1 {
    color: var(--primary-color);
    margin-bottom: 0.5rem;
    font-size: 2rem;
}

.login-box p {
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.g_id_signin {
    margin-top: 1rem;
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-right {
        flex-direction: column;
        gap: 0.5rem;
    }

    #searchBar {
        width: 100%;
    }

    .cards-grid {
        grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
        gap: 1rem;
        padding: 1rem;
    }

    .modal-content {
        width: 95%;
        margin: 10% auto;
        padding: 1.5rem;
    }

    .controls {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    .cards-grid {
        grid-template-columns: 1fr;
    }

    .admin-table {
        font-size: 0.85rem;
    }

    .admin-table th,
    .admin-table td {
        padding: 0.5rem;
    }
}