:root {
    /* ZLDA Group Color Palette — Light Theme */
    --color-primary: #1a1a1a;
    --color-primary-dark: #111111;
    --color-accent: #1a1a1a;
    --color-accent-muted: #555555;
    --color-text: #1a1a1a;
    --color-text-dark: #ffffff;
    --color-text-muted: #666666;
    --color-background: #ffffff;
    --color-background-alt: #f5f5f5;
    --color-background-light: #ffffff;
    --color-border: #e0e0e0;
    --color-border-light: #eeeeee;

    /* Typography - matching ZLDA */
    --font-primary: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;
    --font-display: -apple-system, BlinkMacSystemFont, 'Segoe UI', Helvetica, Arial, sans-serif;

    /* Spacing */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 3rem;
    --spacing-xl: 5rem;

    /* Transitions */
    --transition: 0.2s ease;
}

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

body {
    font-family: var(--font-primary);
    color: var(--color-text);
    background-color: var(--color-background);
    line-height: 1.6;
    overflow-x: hidden;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    line-height: 1.2;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

h2 {
    font-family: var(--font-display);
    font-size: 2.5rem;
    color: var(--color-text);
    font-weight: 600;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity var(--transition);
}

a:hover {
    opacity: 0.7;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* Utilities */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn-primary,
.btn-secondary {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 4px;
    font-weight: 500;
    letter-spacing: 0.3px;
    transition: all var(--transition);
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background: var(--color-accent);
    color: var(--color-text-dark);
    border: 2px solid var(--color-accent);
}

.btn-primary:hover {
    background: transparent;
    color: var(--color-accent);
    border-color: var(--color-accent);
    opacity: 1;
}

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

.btn-secondary:hover {
    border-color: var(--color-accent);
    opacity: 1;
}

.section-tag {
    display: block;
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xs);
    font-weight: 500;
}

.section-header {
    margin-bottom: var(--spacing-lg);
}

.section-header.center {
    text-align: center;
}

.section-description {
    color: var(--color-text-muted);
    font-size: 1.125rem;
    margin-top: var(--spacing-sm);
    line-height: 1.7;
}

/* Header */
header {
    background: var(--color-background);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid var(--color-border);
    position: sticky;
    top: 0;
    z-index: 1000;
}

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

.logo h1 {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--color-text);
    margin: 0;
}

.logo .accent {
    color: var(--color-text-muted);
    font-weight: 400;
}

.logo .tagline {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    margin-top: 0.25rem;
}

#main-nav ul {
    display: flex;
    gap: var(--spacing-md);
    align-items: center;
    list-style: none;
}

#main-nav a {
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.5rem 0;
}

#main-nav .btn-nav {
    background: var(--color-accent);
    color: var(--color-text-dark);
    padding: 0.5rem 1.5rem;
    border-radius: 4px;
}

#mobile-menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 4px;
}

#mobile-menu-btn .bar {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--color-text);
    border-radius: 2px;
    transition: var(--transition);
}

/* Hero */
#hero {
    min-height: 80vh;
    background: var(--color-background);
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: var(--color-text);
    position: relative;
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 900px;
    padding: var(--spacing-md);
}

.hero-content h2 {
    font-size: 3.5rem;
    color: var(--color-text);
    margin-bottom: var(--spacing-md);
    font-weight: 600;
    line-height: 1.1;
}

.hero-subtitle {
    font-size: 1.25rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
    font-weight: 400;
}

.hero-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-md);
    margin: var(--spacing-lg) 0;
}

.stat-card {
    background: var(--color-background-alt);
    border: 1px solid var(--color-border);
    padding: var(--spacing-md);
    border-radius: 4px;
}

.stat-number {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

/* Sections */
section {
    padding: var(--spacing-xl) 0;
    border-bottom: 1px solid var(--color-border);
}

section:nth-child(even) {
    background: var(--color-background-alt);
}

/* Zip Codes Grid */
.zip-codes-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.zip-card {
    background: var(--color-background-alt);
    padding: var(--spacing-md);
    border-radius: 4px;
    border: 1px solid var(--color-border);
    transition: border-color var(--transition);
}

.zip-card:hover {
    border-color: var(--color-accent-muted);
}

.zip-number {
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--color-text);
}

.zip-name {
    font-size: 1.125rem;
    font-weight: 500;
    margin: var(--spacing-xs) 0;
    color: var(--color-text);
}

.zip-count {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    font-weight: 500;
    margin-bottom: var(--spacing-sm);
}

.zip-categories {
    list-style: none;
    margin-top: var(--spacing-sm);
}

.zip-categories li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.875rem;
    color: var(--color-text-muted);
}

.zip-categories li:last-child {
    border-bottom: none;
}

/* Criteria Box */
.criteria-box {
    background: var(--color-background-alt);
    color: var(--color-text);
    padding: var(--spacing-lg);
    border-radius: 4px;
    text-align: center;
    border: 1px solid var(--color-border);
}

.criteria-box h3 {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.criteria-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.criterion {
    background: var(--color-background);
    padding: var(--spacing-sm);
    border-radius: 4px;
    font-weight: 400;
    border: 1px solid var(--color-border);
}

/* Filter Buttons */
.filter-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    justify-content: center;
    margin-bottom: var(--spacing-lg);
}

.filter-btn {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-background-alt);
    border-radius: 4px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition);
    color: var(--color-text);
    font-size: 0.9rem;
}

.filter-btn:hover {
    border-color: var(--color-accent-muted);
}

.filter-btn.active {
    background: var(--color-accent);
    color: var(--color-text-dark);
    border-color: var(--color-accent);
}

/* Business Grid */
.business-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.business-card {
    background: var(--color-background-alt);
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--color-border);
    transition: border-color var(--transition);
    cursor: pointer;
}

.business-card:hover {
    border-color: var(--color-accent-muted);
}

.business-card.hidden {
    display: none;
}

.business-header {
    background: var(--color-accent);
    color: var(--color-text-dark);
    padding: var(--spacing-md);
    border-bottom: 1px solid var(--color-border);
}

.business-name {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--color-text-dark);
}

.business-category {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
}

.business-body {
    padding: var(--spacing-md);
}

.business-rating {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 500;
    color: var(--color-text);
}

.business-info p {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: 0.5rem;
}

.business-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: var(--spacing-sm);
}

.tag {
    background: var(--color-background-alt);
    padding: 0.25rem 0.75rem;
    border-radius: 4px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--color-text-muted);
    border: 1px solid var(--color-border);
}

/* Stats Section */
#stats {
    background: var(--color-background);
    color: var(--color-text);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
}

.stat-box {
    text-align: center;
    padding: var(--spacing-md);
    border: 1px solid var(--color-border);
    border-radius: 4px;
}

.stat-icon {
    font-size: 3rem;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 3rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.stat-description {
    font-size: 1rem;
    color: var(--color-text-muted);
}

/* Contact Section */
.contact-box {
    background: var(--color-background-alt);
    color: var(--color-text);
    padding: var(--spacing-lg);
    border-radius: 4px;
    text-align: center;
    max-width: 800px;
    margin: 0 auto;
    border: 1px solid var(--color-border);
}

.contact-box h2 {
    color: var(--color-text);
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    font-weight: 600;
}

.contact-box p {
    font-size: 1.125rem;
    margin-bottom: var(--spacing-lg);
    color: var(--color-text-muted);
}

.contact-actions {
    display: flex;
    gap: var(--spacing-sm);
    justify-content: center;
    flex-wrap: wrap;
}

/* Footer */
footer {
    background: var(--color-background);
    color: var(--color-text);
    padding: var(--spacing-lg) 0;
    text-align: center;
    border-top: 1px solid var(--color-border);
}

.footer-note {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-top: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }

    h2 {
        font-size: 2rem;
    }

    #main-nav {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--color-background);
        padding: var(--spacing-md);
        border-bottom: 1px solid var(--color-border);
        display: none;
    }

    #main-nav.active {
        display: block;
    }

    #main-nav ul {
        flex-direction: column;
        gap: var(--spacing-sm);
    }

    #mobile-menu-btn {
        display: flex;
    }

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