/* ProVector Design System - High Contrast Minimalist Style */

:root {
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', system-ui, sans-serif;
  --font-data: 'Roboto Mono', 'SF Mono', 'Monaco', 'Inconsolata', monospace;
  
  /* Type Scale */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.25rem;
  --text-xl: 1.5rem;
  --text-2xl: 2rem;
  --text-3xl: 2.5rem;
  --text-4xl: 3rem;
  
  /* Colors - High Contrast */
  --color-black: #000000;
  --color-white: #FFFFFF;
  --color-gray-50: #FAFAFA;
  --color-gray-100: #F4F4F4;
  --color-gray-200: #E5E5E5;
  --color-gray-300: #D4D4D4;
  --color-gray-500: #737373;
  --color-gray-600: #525252;
  --color-gray-800: #262626;
  --color-gray-900: #171717;
  
  /* Chart Colors - High Contrast Palette */
  /* Primary colors - Maximum contrast and distinction */
  --chart-primary: #000000;     /* Pure Black - Primary data */
  --chart-secondary: #4E79A7;   /* Steel Blue - Secondary data */
  --chart-tertiary: #E15759;    /* Coral Red - Alerts/Important */
  --chart-quaternary: #59A14F;  /* Forest Green - Positive trends */
  
  /* Extended palette for multiple series */
  --chart-1: #000000;     /* Black - Highest contrast */
  --chart-2: #4E79A7;     /* Steel Blue */
  --chart-3: #76B7B2;     /* Teal */
  --chart-4: #59A14F;     /* Forest Green */
  --chart-5: #EDC949;     /* Golden Yellow */
  --chart-6: #F28E2B;     /* Orange */
  --chart-7: #E15759;     /* Coral Red */
  --chart-8: #AF7AA1;     /* Mauve */
  --chart-9: #9DA7B1;     /* Gray Blue */
  --chart-white: #FFFFFF; /* White for contrast */
  
  /* Semantic chart colors */
  --chart-positive: #59A14F;   /* Green for gains/success */
  --chart-negative: #E15759;   /* Red for losses/alerts */
  --chart-neutral: #9DA7B1;    /* Gray Blue for baseline/average */
  --chart-highlight: #4E79A7;  /* Steel Blue for emphasis */
  --chart-muted: #D4D4D4;      /* Light gray for de-emphasized */
  
  /* Chart gradients for area/backgrounds */
  --chart-gradient-1: rgba(0, 0, 0, 0.08);
  --chart-gradient-2: rgba(78, 121, 167, 0.08);
  --chart-gradient-3: rgba(118, 183, 178, 0.08);
  --chart-gradient-4: rgba(89, 161, 79, 0.08);
  --chart-gradient-5: rgba(237, 201, 73, 0.08);
  --chart-gradient-6: rgba(242, 142, 43, 0.08);
  --chart-gradient-7: rgba(225, 87, 89, 0.08);
  --chart-gradient-8: rgba(175, 122, 161, 0.08);
  --chart-gradient-9: rgba(157, 167, 177, 0.08);
}

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

body {
    font-family: var(--font-primary);
    line-height: 1.6;
    color: var(--color-black);
    background: var(--color-white);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1440px;
    margin: 0 auto;
    padding: 0 2rem;
}

/* Navbar */
.navbar {
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.nav-brand h1 {
    color: var(--color-black);
    font-size: var(--text-xl);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 0;
}

.tagline {
    color: var(--color-gray-600);
    font-size: var(--text-xs);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 500;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    text-decoration: none;
    color: var(--color-gray-600);
    font-weight: 500;
    transition: color 0.15s ease;
}

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

.nav-auth {
    display: flex;
    gap: 1rem;
}

/* Buttons */
.btn {
    padding: 0.5rem 1.25rem;
    border: 2px solid transparent;
    border-radius: 4px;
    font-size: var(--text-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s ease;
    font-family: var(--font-primary);
}

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

.btn-primary:hover {
    background: var(--color-gray-800);
    border-color: var(--color-gray-800);
}

.btn-outline {
    background: transparent;
    color: var(--color-black);
    border: 2px solid var(--color-black);
}

.btn-outline:hover {
    background: var(--color-black);
    color: var(--color-white);
}

.btn-lg {
    padding: 0.75rem 2rem;
    font-size: var(--text-base);
}

.btn-block {
    width: 100%;
    display: block;
}

.btn-google, .btn-apple {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border: 2px solid var(--color-black);
    background: var(--color-white);
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    font-size: var(--text-sm);
}

.btn-google:hover, .btn-apple:hover {
    background: var(--color-gray-50);
    border-color: var(--color-black);
}

/* Hero Section */
.hero {
    background: var(--color-gray-50);
    border-bottom: 1px solid var(--color-gray-200);
    padding: 4rem 0;
}

.hero-content {
    max-width: 800px;
}

.hero-content h2 {
    font-size: var(--text-3xl);
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--color-black);
}

.hero-content p {
    font-size: var(--text-lg);
    color: var(--color-gray-600);
    margin-bottom: 2rem;
}

.hero-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
}

/* Features */
.features {
    padding: 4rem 0;
    background: var(--color-white);
}

.features h3 {
    text-align: center;
    font-size: var(--text-2xl);
    margin-bottom: 3rem;
    color: var(--color-black);
    font-weight: 600;
}

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

.feature-card {
    background: var(--color-white);
    padding: 2rem;
    border: 2px solid var(--color-black);
    border-radius: 4px;
    transition: all 0.15s ease;
}

.feature-card:hover {
    border-color: var(--color-black);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.15);
    transform: translateY(-2px);
}

.feature-card h4 {
    color: var(--color-black);
    margin-bottom: 0.75rem;
    font-size: var(--text-lg);
}

.feature-card p {
    color: var(--color-gray-600);
    line-height: 1.6;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
}

.modal-content {
    background: var(--color-white);
    margin: 5% auto;
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 500px;
    position: relative;
}

.close {
    position: absolute;
    right: 1.5rem;
    top: 1.5rem;
    font-size: 2rem;
    font-weight: 300;
    cursor: pointer;
    color: var(--color-gray-500);
}

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

/* Modal Overlay - for team selection modal */
.modal-overlay {
    position: fixed;
    z-index: 9999;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-overlay .modal-content {
    margin: 0;
    background: var(--color-white);
    padding: 2rem;
    border-radius: 8px;
    width: 90%;
    max-width: 600px;
    max-height: 80vh;
    overflow-y: auto;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.2);
    border: 1px solid var(--color-black);
    position: relative;
}

/* Auth Forms */
.auth-form h3 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--color-black);
}

.auth-form input {
    width: 100%;
    padding: 0.75rem;
    margin-bottom: 1rem;
    border: 1px solid var(--color-gray-300);
    border-radius: 4px;
    font-size: var(--text-base);
    font-family: var(--font-primary);
}

.auth-form input:focus {
    outline: none;
    border-color: var(--color-black);
}

.auth-divider {
    text-align: center;
    margin: 1.5rem 0;
    color: var(--color-gray-500);
    font-size: var(--text-sm);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    position: relative;
}

.auth-divider::before,
.auth-divider::after {
    content: '';
    position: absolute;
    top: 50%;
    width: 45%;
    height: 1px;
    background: var(--color-gray-200);
}

.auth-divider::before {
    left: 0;
}

.auth-divider::after {
    right: 0;
}

.auth-switch {
    text-align: center;
    margin-top: 1.5rem;
    font-size: var(--text-sm);
    color: var(--color-gray-600);
}

.auth-switch a {
    color: var(--chart-1);
    text-decoration: none;
    font-weight: 600;
}

.auth-switch a:hover {
    text-decoration: underline;
}

/* Chart Styles */
.charts-section {
    padding: 3rem 0;
}

.charts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(500px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.chart-container {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 4px;
    padding: 1.5rem;
    position: relative;
}

.chart-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--color-gray-900);
}

.chart-canvas {
    position: relative;
    height: 300px;
    width: 100%;
}

.chart-canvas canvas {
    max-width: 100%;
    height: auto !important;
}

/* Metrics */
.metrics-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin: 2rem 0;
}

.metric-card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    border-radius: 4px;
    padding: 1.5rem;
}

.metric-label {
    font-size: var(--text-xs);
    font-weight: 600;
    color: var(--color-gray-600);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.metric-value {
    font-family: var(--font-data);
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-black);
    font-variant-numeric: tabular-nums;
}

.metric-change {
    font-size: var(--text-sm);
    font-weight: 600;
    margin-top: 0.5rem;
}

.metric-change.positive { color: #00AA00; }
.metric-change.negative { color: #DD0000; }

/* Mobile Menu */
.mobile-menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 0.5rem;
    color: var(--color-black);
}

.mobile-menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: currentColor;
    margin: 5px 0;
    transition: all 0.3s ease;
}

.mobile-menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
}

.mobile-menu-toggle.active span:nth-child(2) {
    opacity: 0;
}

.mobile-menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(7px, -6px);
}

@media (max-width: 768px) {
    .mobile-menu-toggle {
        display: block;
    }
    
    .nav-menu {
        position: fixed;
        top: 60px;
        right: -100%;
        width: 100%;
        height: calc(100vh - 60px);
        background: var(--color-white);
        flex-direction: column;
        justify-content: flex-start;
        align-items: flex-start;
        padding: 2rem;
        border-top: 1px solid var(--color-gray-200);
        transition: right 0.3s ease;
        z-index: 99;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-auth {
        width: 100%;
        flex-direction: column;
        gap: 1rem;
        margin-top: 1rem;
    }
    
    .nav-auth .btn {
        width: 100%;
    }
    
    .charts-grid {
        grid-template-columns: 1fr;
        gap: 1rem;
    }
    
    .chart-container {
        padding: 1rem;
    }
    
    .chart-canvas {
        height: 250px;
        min-height: 200px;
    }
    
    .metrics-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 1rem;
    }
    
    .metric-card {
        padding: 1rem;
    }
    
    .hero h2 {
        font-size: 2rem;
    }
    
    .hero p {
        font-size: 1rem;
    }
    
    .container {
        padding: 0 1rem;
    }
    
    .charts-section {
        padding: 2rem 0;
    }
}

@media (max-width: 480px) {
    .metrics-grid {
        grid-template-columns: 1fr;
    }
    
    .chart-canvas {
        height: 200px;
    }
    
    .hero h2 {
        font-size: 1.5rem;
    }
    
    .nav-brand h2 {
        font-size: 20px !important;
    }
    
    .tagline {
        font-size: 10px !important;
    }
}