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

:root {
    --primary-color: #2563eb;
    --primary-dark: #1d4ed8;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --bg-white: #ffffff;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

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

/* Login Page Styles */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
}

.login-container {
    width: 100%;
    max-width: 440px;
}

.login-card {
    background: var(--bg-white);
    border-radius: 12px;
    padding: 48px 40px;
    box-shadow: var(--shadow-lg);
}

.login-logo {
    display: block;
    max-width: 200px;
    height: auto;
    margin: 0 auto 32px;
}

.login-card h1 {
    font-size: 28px;
    font-weight: 700;
    text-align: center;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.login-subtitle {
    text-align: center;
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 15px;
}

.login-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 8px;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 15px;
    transition: all 0.2s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

.btn-primary {
    width: 100%;
    padding: 12px 24px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 6px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-secondary {
    padding: 8px 16px;
    background-color: var(--bg-white);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-secondary:hover {
    background-color: var(--bg-light);
}

.error-message {
    margin-top: 16px;
    padding: 12px;
    background-color: #fee2e2;
    color: var(--danger-color);
    border-radius: 6px;
    font-size: 14px;
    text-align: center;
}

.login-footer {
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.login-footer p {
    margin-bottom: 8px;
}

.login-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.login-footer a:hover {
    text-decoration: underline;
}

/* Dashboard Page Styles */
.dashboard-page {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.dashboard-header {
    background: var(--bg-white);
    border-bottom: 1px solid var(--border-color);
    padding: 16px 32px;
    box-shadow: var(--shadow-sm);
}

.header-content {
    max-width: 1400px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.header-logo {
    height: 40px;
    width: auto;
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.client-name {
    font-weight: 600;
    color: var(--text-primary);
}

.dashboard-main {
    flex: 1;
    max-width: 1400px;
    width: 100%;
    margin: 0 auto;
    padding: 40px 32px;
}

.page-header {
    text-align: center;
    margin-bottom: 48px;
}

.client-logo {
    max-width: 250px;
    height: auto;
    margin: 0 auto 24px;
    display: block;
}

.page-header h1 {
    font-size: 36px;
    font-weight: 700;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.page-subtitle {
    color: var(--text-secondary);
    font-size: 16px;
}

/* Report Cards Grid */
.report-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 24px;
    margin-bottom: 40px;
}

.report-card {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 24px;
    cursor: pointer;
    transition: all 0.2s;
}

.report-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}

.report-card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-color);
}

.report-card-header h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--text-primary);
}

.report-status {
    padding: 4px 12px;
    border-radius: 12px;
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
}

.report-status.current {
    background-color: #dbeafe;
    color: var(--primary-color);
}

.metric-preview {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.metric-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.metric-value {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.btn-block {
    width: 100%;
}

/* Detailed Report Styles */
.report-navigation {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 32px;
}

.btn-back {
    padding: 10px 20px;
    background-color: var(--bg-white);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}

.btn-back:hover {
    background-color: var(--bg-light);
}

.report-navigation h2 {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.report-section {
    background: var(--bg-white);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 32px;
    margin-bottom: 24px;
}

.report-section h3 {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 8px;
    color: var(--text-primary);
}

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

.chart-container {
    position: relative;
    height: 800px;
    margin-bottom: 16px;
}

.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.metric-card {
    background: var(--bg-light);
    border-radius: 8px;
    padding: 20px;
    display: flex;
    align-items: center;
    gap: 16px;
}

.metric-icon {
    font-size: 32px;
}

.metric-details {
    display: flex;
    flex-direction: column;
}

.metric-value.large {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
    margin: 4px 0;
}

.metric-change {
    font-size: 13px;
    font-weight: 600;
}

.metric-change.positive {
    color: var(--success-color);
}

.metric-change.negative {
    color: var(--danger-color);
}

/* Source Cards */
.source-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
}

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

.source-icon {
    font-size: 24px;
}

.source-name {
    font-weight: 600;
    font-size: 15px;
    color: var(--text-primary);
}

/* Tables */
.table-container {
    overflow-x: auto;
}

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

.data-table thead {
    background-color: var(--bg-light);
}

.data-table th {
    padding: 12px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    border-bottom: 2px solid var(--border-color);
}

.data-table td {
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
    font-size: 14px;
}

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

.data-table td.loading {
    text-align: center;
    color: var(--text-secondary);
    padding: 32px;
}

/* Info Box */
.info-box {
    margin-top: 20px;
    padding: 16px;
    background-color: #dbeafe;
    border-left: 4px solid var(--primary-color);
    border-radius: 6px;
    font-size: 14px;
    color: var(--text-primary);
}

/* Footer */
.dashboard-footer {
    background: var(--bg-white);
    border-top: 1px solid var(--border-color);
    padding: 20px 32px;
    text-align: center;
    color: var(--text-secondary);
    font-size: 14px;
}

.dashboard-footer a {
    color: var(--primary-color);
    text-decoration: none;
}

.dashboard-footer a:hover {
    text-decoration: underline;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard-main {
        padding: 24px 16px;
    }

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

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

    .metrics-grid {
        grid-template-columns: 1fr;
    }

    .report-navigation {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }
}

/* Utilities */
.help-text {
    font-size: 13px;
    color: var(--text-secondary);
}

@media (max-width: 768px) {
    .chart-container {
        height: 320px;
    }
}