/* GoDeskless Market Research Report - Minimal Black & White Design */

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

:root {
    /* Colors - Black & White Minimal */
    --color-black: #000000;
    --color-white: #FFFFFF;
    --color-gray-100: #F5F5F5;
    --color-gray-200: #E5E5E5;
    --color-gray-300: #D4D4D4;
    --color-gray-400: #A3A3A3;
    --color-gray-500: #737373;
    --color-gray-600: #525252;
    --color-gray-700: #404040;
    --color-gray-800: #262626;
    --color-gray-900: #171717;
    
    /* Typography */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
    --font-mono: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
    
    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2rem;
    --space-xl: 3rem;
    --space-2xl: 4rem;
    --space-3xl: 6rem;
    
    /* Transitions */
    --transition-fast: 150ms ease;
    --transition-base: 250ms ease;
    --transition-slow: 350ms ease;
}

body {
    font-family: var(--font-primary);
    background: var(--color-white);
    color: var(--color-black);
    line-height: 1.6;
    font-size: 16px;
    overflow-x: hidden;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.2;
    margin-bottom: var(--space-md);
}

h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.02em;
}

h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 600;
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

h4 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-gray-700);
}

/* Navigation */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-white);
    border-bottom: 1px solid var(--color-gray-200);
    z-index: 1000;
    padding: var(--space-md) var(--space-lg);
}

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

.nav-logo {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-black);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.nav-menu {
    display: flex;
    gap: var(--space-lg);
    list-style: none;
}

.nav-link {
    color: var(--color-gray-600);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-base);
    position: relative;
}

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

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--color-black);
    transition: width var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 100%;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl) var(--space-lg);
    margin-top: 80px;
}

.hero-content {
    max-width: 1200px;
    text-align: center;
}

.hero-label {
    display: inline-block;
    padding: var(--space-xs) var(--space-md);
    border: 1px solid var(--color-black);
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-lg);
}

.hero-title {
    margin-bottom: var(--space-lg);
}

.hero-subtitle {
    font-size: clamp(1.125rem, 2vw, 1.5rem);
    color: var(--color-gray-600);
    max-width: 800px;
    margin: 0 auto var(--space-xl);
}

/* Section Layouts */
.section {
    padding: var(--space-3xl) var(--space-lg);
}

.section-dark {
    background: var(--color-black);
    color: var(--color-white);
}

.section-dark h1,
.section-dark h2,
.section-dark h3,
.section-dark h4 {
    color: var(--color-white);
}

.section-dark p {
    color: var(--color-gray-300);
}

.section-gray {
    background: var(--color-gray-100);
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

.section-header {
    margin-bottom: var(--space-2xl);
}

.section-label {
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--color-gray-500);
    margin-bottom: var(--space-sm);
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: var(--space-md);
}

/* Grid Layouts */
.grid {
    display: grid;
    gap: var(--space-lg);
}

.grid-2 {
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

.grid-4 {
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

/* Cards */
.card {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-xl);
    transition: all var(--transition-base);
}

.card:hover {
    border-color: var(--color-black);
    transform: translateY(-2px);
}

.card-dark {
    background: var(--color-gray-900);
    border-color: var(--color-gray-800);
}

.card-dark:hover {
    border-color: var(--color-gray-600);
}

.card-number {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: var(--space-sm);
    font-family: var(--font-mono);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: var(--space-sm);
}

.card-text {
    font-size: 0.95rem;
    color: var(--color-gray-600);
}

/* Stats Display */
.stat-box {
    text-align: center;
    padding: var(--space-xl);
    border: 1px solid var(--color-gray-200);
}

.stat-value {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: var(--space-sm);
}

.stat-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-gray-500);
}

/* Chart Container */
.chart-container {
    background: var(--color-white);
    border: 1px solid var(--color-gray-200);
    padding: var(--space-xl);
    margin: var(--space-lg) 0;
}

.chart-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: var(--space-lg);
    text-align: center;
}

/* Lists */
.list-minimal {
    list-style: none;
}

.list-minimal li {
    padding: var(--space-md) 0;
    border-bottom: 1px solid var(--color-gray-200);
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
}

.list-minimal li:last-child {
    border-bottom: none;
}

.list-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Tables */
.table-container {
    overflow-x: auto;
    margin: var(--space-lg) 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
}

thead {
    background: var(--color-black);
    color: var(--color-white);
}

th {
    padding: var(--space-md);
    text-align: left;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.875rem;
    letter-spacing: 0.05em;
}

td {
    padding: var(--space-md);
    border-bottom: 1px solid var(--color-gray-200);
}

tr:hover {
    background: var(--color-gray-100);
}

/* Buttons */
.btn {
    display: inline-block;
    padding: var(--space-md) var(--space-xl);
    border: 2px solid var(--color-black);
    background: var(--color-black);
    color: var(--color-white);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.95rem;
    transition: all var(--transition-base);
    cursor: pointer;
}

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

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

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

/* Timeline */
.timeline {
    position: relative;
    padding-left: var(--space-xl);
}

.timeline::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 2px;
    background: var(--color-gray-200);
}

.timeline-item {
    position: relative;
    padding-bottom: var(--space-xl);
}

.timeline-item::before {
    content: '';
    position: absolute;
    left: -33px;
    top: 8px;
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background: var(--color-black);
    border: 3px solid var(--color-white);
    box-shadow: 0 0 0 2px var(--color-black);
}

.timeline-year {
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: var(--space-sm);
}

.timeline-content {
    background: var(--color-gray-100);
    padding: var(--space-lg);
    border-left: 3px solid var(--color-black);
}

/* Quote Block */
.quote-block {
    border-left: 4px solid var(--color-black);
    padding: var(--space-xl);
    margin: var(--space-xl) 0;
    background: var(--color-gray-100);
}

.quote-text {
    font-size: 1.25rem;
    font-style: italic;
    margin-bottom: var(--space-md);
    color: var(--color-black);
}

.quote-author {
    font-size: 0.95rem;
    color: var(--color-gray-600);
    font-weight: 600;
}

/* Footer */
.footer {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-2xl) var(--space-lg);
    text-align: center;
}

.footer p {
    color: var(--color-gray-400);
}

/* Responsive */
@media (max-width: 768px) {
    .nav-menu {
        display: none;
    }
    
    .hero {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .section {
        padding: var(--space-2xl) var(--space-md);
    }
    
    .grid-2,
    .grid-3,
    .grid-4 {
        grid-template-columns: 1fr;
    }
}

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

.fade-in {
    animation: fadeIn 0.6s ease forwards;
}

/* Chart Styles */
.chart-bar {
    display: flex;
    align-items: center;
    margin-bottom: var(--space-md);
}

.chart-label {
    width: 150px;
    font-size: 0.875rem;
    font-weight: 600;
}

.chart-bar-container {
    flex: 1;
    height: 40px;
    background: var(--color-gray-200);
    position: relative;
}

.chart-bar-fill {
    height: 100%;
    background: var(--color-black);
    transition: width 1s ease;
}

.chart-value {
    position: absolute;
    right: var(--space-sm);
    top: 50%;
    transform: translateY(-50%);
    font-weight: 600;
    font-size: 0.875rem;
}

/* Metric Cards */
.metric-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-md);
    margin: var(--space-xl) 0;
}

.metric-card {
    background: var(--color-black);
    color: var(--color-white);
    padding: var(--space-xl);
    text-align: center;
    border: 2px solid var(--color-black);
    transition: all var(--transition-base);
}

.metric-card:hover {
    background: var(--color-white);
    color: var(--color-black);
}

.metric-value {
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: var(--space-sm);
}

.metric-label {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.8;
}

/* Section Number Badge */
.section-badge {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 60px;
    height: 60px;
    background: var(--color-black);
    color: var(--color-white);
    font-size: 1.5rem;
    font-weight: 700;
    font-family: var(--font-mono);
    margin-bottom: var(--space-lg);
}

/* Content Blocks */
.content-block {
    margin: var(--space-2xl) 0;
}

.content-split {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
}

@media (max-width: 968px) {
    .content-split {
        grid-template-columns: 1fr;
    }
}

/* Divider */
.divider {
    height: 1px;
    background: var(--color-gray-200);
    margin: var(--space-2xl) 0;
}

.divider-thick {
    height: 2px;
    background: var(--color-black);
}

/* Page Transition */
.page-transition {
    opacity: 0;
    animation: fadeIn 0.6s ease forwards;
}

/* Print Styles */
@media print {
    .nav,
    .footer {
        display: none;
    }
    
    .section {
        page-break-inside: avoid;
    }
}