/**
 * Financial Dashboard Styles
 * Professional Black + Dark Green Theme
 */

:root {
    --primary-black: #0a0a0a;
    --secondary-black: #1a1a1a;
    --dark-green: #0d4d2d;
    --medium-green: #1a7a4a;
    --light-green: #2d9d5f;
    --accent-green: #3db870;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --text-muted: #707070;
    --border-color: #2a2a2a;
    --card-bg: #151515;
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.5);
    --shadow-hover: 0 8px 30px rgba(61, 184, 112, 0.2);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
    background: var(--primary-black);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 20px;
    width: 100%;
}

/* Header Styles */
.header {
    background: var(--secondary-black);
    border-bottom: 2px solid var(--dark-green);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--shadow);
}

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

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-green);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo-icon {
    font-size: 2rem;
}

.nav {
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    transition: color 0.3s ease;
    padding: 0.5rem 0;
}

.nav-link:hover {
    color: var(--accent-green);
}

/* Main Content */
.main-content {
    flex: 1;
    padding: 2rem 0;
}

/* Overview Section */
.overview-section {
    margin-bottom: 3rem;
}

.overview-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.overview-card {
    background: linear-gradient(135deg, var(--card-bg) 0%, var(--secondary-black) 100%);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    box-shadow: var(--shadow);
}

.overview-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-hover);
    border-color: var(--medium-green);
}

.overview-icon {
    font-size: 2.5rem;
    opacity: 0.9;
}

.overview-content h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.overview-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-green);
}

/* Dashboard Sections */
.dashboard-section {
    margin-bottom: 4rem;
    animation: fadeIn 0.6s ease-in;
}

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

.section-title {
    font-size: 2rem;
    color: var(--accent-green);
    margin-bottom: 2rem;
    font-weight: 700;
    border-left: 4px solid var(--dark-green);
    padding-left: 1rem;
}

/* Financial Grid */
.financial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.financial-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: border-color 0.3s ease;
}

.financial-card:hover {
    border-color: var(--medium-green);
}

.card-title {
    font-size: 1.3rem;
    color: var(--accent-green);
    margin-bottom: 1.5rem;
    font-weight: 600;
    padding-bottom: 0.75rem;
    border-bottom: 2px solid var(--dark-green);
}

.financial-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.financial-item:last-child {
    border-bottom: none;
}

.financial-total {
    display: flex;
    justify-content: space-between;
    padding: 1rem 0;
    margin-top: 1rem;
    border-top: 2px solid var(--dark-green);
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--text-primary);
}

.financial-total.highlight {
    background: linear-gradient(90deg, var(--dark-green), var(--medium-green));
    padding: 1rem;
    border-radius: 8px;
    margin-top: 1rem;
}

.financial-total.large {
    font-size: 1.5rem;
    padding: 1.5rem;
}

.amount {
    color: var(--accent-green);
    font-weight: 600;
}

.amount.negative {
    color: #ff6b6b;
}

.cash-flow-summary {
    margin-top: 2rem;
    display: flex;
    justify-content: center;
}

/* Ratios Grid */
.ratios-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
}

.ratio-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: border-color 0.3s ease;
}

.ratio-card:hover {
    border-color: var(--medium-green);
}

.ratio-title {
    font-size: 1.2rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
    font-weight: 600;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--dark-green);
}

.ratio-item {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem 0;
    border-bottom: 1px solid var(--border-color);
    color: var(--text-secondary);
}

.ratio-item:last-child {
    border-bottom: none;
}

.ratio-value {
    color: var(--accent-green);
    font-weight: 600;
    font-size: 1.1rem;
}

/* Charts Grid */
.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
}

.chart-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    box-shadow: var(--shadow);
    transition: border-color 0.3s ease;
}

.chart-card:hover {
    border-color: var(--medium-green);
}

.chart-title {
    font-size: 1.1rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
    font-weight: 600;
}

.chart-card canvas {
    max-height: 300px;
}

/* File Upload Section */
.upload-section {
    margin-top: 4rem;
    padding-top: 2rem;
    border-top: 2px solid var(--dark-green);
}

.upload-container {
    max-width: 800px;
    margin: 0 auto;
}

.upload-area {
    border: 3px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
    background: var(--card-bg);
}

.upload-area:hover {
    border-color: var(--medium-green);
    background: var(--secondary-black);
}

.upload-area.dragover {
    border-color: var(--accent-green);
    background: rgba(61, 184, 112, 0.1);
}

.upload-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.upload-area h3 {
    color: var(--accent-green);
    margin-bottom: 0.5rem;
    font-size: 1.5rem;
}

.upload-area p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.upload-hint {
    color: var(--text-muted);
    font-size: 0.9rem;
    font-style: italic;
}

.upload-status {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 8px;
    display: none;
}

.upload-status.success {
    display: block;
    background: rgba(61, 184, 112, 0.2);
    border: 1px solid var(--accent-green);
    color: var(--accent-green);
}

.upload-status.error {
    display: block;
    background: rgba(255, 107, 107, 0.2);
    border: 1px solid #ff6b6b;
    color: #ff6b6b;
}

.upload-status.loading {
    display: block;
    background: rgba(112, 112, 112, 0.2);
    border: 1px solid var(--text-muted);
    color: var(--text-secondary);
}

/* Footer */
.footer {
    background: var(--secondary-black);
    border-top: 2px solid var(--dark-green);
    padding: 2rem 0;
    margin-top: 4rem;
}

.footer-content {
    text-align: center;
    color: var(--text-secondary);
}

.footer-content p {
    margin-bottom: 0.5rem;
}

.footer-subtitle {
    font-size: 0.9rem;
    color: var(--text-muted);
}

/* Responsive Design */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 1rem;
    }

    .nav {
        gap: 1rem;
    }

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

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

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

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

    .section-title {
        font-size: 1.5rem;
    }

    .upload-area {
        padding: 2rem 1rem;
    }
}

/* Loading Animation */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.loading {
    animation: pulse 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}