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

:root {
    --color-text: #1a1a1a;
    --color-text-light: #666;
    --color-bg: #ffffff;
    --color-bg-alt: #f8f8f8;
    --color-border: #e8e8e8;
    --color-accent: #1a1a1a;
    --color-void: #0a0a0a;
    --color-beige: #f5f0eb;
    --color-gray: #e8eaed;
    --color-taupe: #b8a897;
    
    --font-serif: 'Georgia', 'Garamond', serif;
    --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', sans-serif;
    
    --spacing-unit: 1rem;
    --max-width: 1000px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Navigation */
.nav {
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 1.5rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 14px;
    font-weight: 500;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

.logo svg {
    width: 32px;
    height: 32px;
}

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

.nav-links a {
    font-size: 13px;
    text-decoration: none;
    color: var(--color-text-light);
    transition: color 0.3s ease;
    letter-spacing: 0.02em;
}

.nav-links a:hover {
    color: var(--color-text);
}

/* Hero Section */
.hero {
    padding: 6rem 2rem;
    text-align: center;
}

.hero-content {
    max-width: var(--max-width);
    margin: 0 auto;
}

.hero h1 {
    font-size: clamp(2.5rem, 8vw, 4rem);
    font-family: var(--font-serif);
    font-weight: 400;
    line-height: 1.2;
    margin-bottom: 1rem;
    letter-spacing: -0.02em;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 4rem;
    font-weight: 300;
}

.hero-product {
    max-width: 500px;
    margin: 0 auto;
    animation: fadeInUp 0.8s ease-out;
}

.hero-product img {
    width: 100%;
    height: auto;
    display: block;
}

/* Sections */
.section {
    padding: 5rem 2rem;
    border-top: 1px solid var(--color-border);
}

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

.section-container {
    max-width: var(--max-width);
    margin: 0 auto;
}

.section h2 {
    font-family: var(--font-serif);
    font-size: clamp(2rem, 6vw, 2.5rem);
    font-weight: 400;
    margin-bottom: 2rem;
    letter-spacing: -0.01em;
}

.section .intro {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
    line-height: 1.7;
    max-width: 600px;
}

/* Problem Section */
.problem .intro {
    margin-bottom: 3rem;
}

.symptoms-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.symptom {
    padding: 1.5rem;
    border: 1px solid var(--color-border);
    background: var(--color-bg);
}

.symptom-icon {
    display: block;
    font-size: 2rem;
    font-weight: 300;
    margin-bottom: 1rem;
    color: var(--color-text-light);
}

.symptom p {
    font-size: 0.95rem;
    line-height: 1.6;
}

.problem .conclusion {
    font-size: 1.1rem;
    color: var(--color-text);
}

/* Solution Section */
.solution-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 3rem;
    margin-bottom: 4rem;
}

.solution-item img {
    width: 100%;
    height: auto;
    margin-bottom: 1.5rem;
}

.solution-item h3 {
    font-size: 1.15rem;
    margin-bottom: 1rem;
    font-weight: 500;
}

.solution-item p {
    color: var(--color-text-light);
    line-height: 1.7;
}

.science-section {
    background: var(--color-bg);
    padding: 2.5rem;
    border: 1px solid var(--color-border);
    margin-top: 3rem;
}

.science-section h3 {
    font-size: 1.15rem;
    margin-bottom: 1.5rem;
    font-weight: 500;
}

.science-section p {
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
    line-height: 1.7;
}

/* Results Section */
.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 2.5rem;
}

.result-item {
    text-align: center;
    padding: 1.5rem;
}

.result-stat {
    display: block;
    font-size: 2.5rem;
    font-family: var(--font-serif);
    font-weight: 400;
    margin-bottom: 1rem;
}

.result-item p {
    color: var(--color-text-light);
    font-size: 0.95rem;
    line-height: 1.6;
}

/* Comparison Table */
.comparison-table {
    overflow-x: auto;
    margin: 2rem 0;
}

table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-bg);
}

thead {
    border-top: 1px solid var(--color-border);
    border-bottom: 2px solid var(--color-border);
}

th {
    padding: 1.25rem;
    text-align: left;
    font-weight: 500;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-light);
}

td {
    padding: 1.25rem;
    border-bottom: 1px solid var(--color-border);
}

.criteria {
    font-weight: 500;
    font-size: 0.95rem;
    width: 200px;
}

td:last-child {
    text-align: center;
}

.highlight {
    background: rgba(26, 26, 26, 0.02);
    font-weight: 500;
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 3rem;
    align-items: center;
}

.gallery-item img {
    width: 100%;
    height: auto;
}

.color-details {
    display: grid;
    gap: 2rem;
}

.color {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

.swatch {
    width: 60px;
    height: 60px;
    border-radius: 2px;
    flex-shrink: 0;
    border: 1px solid var(--color-border);
}

.void-black {
    background: #1a1a1a;
}

.neutral-beige {
    background: #f5f0eb;
    border: 1px solid #e0d8ce;
}

.authenticity-gray {
    background: #e8eaed;
}

.existential-taupe {
    background: #b8a897;
}

.color h4 {
    font-size: 0.95rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
}

.color p {
    font-size: 0.85rem;
    color: var(--color-text-light);
}

/* Testimonials */
.testimonials-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2.5rem;
}

blockquote {
    padding: 2rem;
    border-left: 2px solid var(--color-accent);
    background: var(--color-bg);
    font-style: italic;
}

blockquote p {
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
    line-height: 1.8;
    font-size: 0.95rem;
}

blockquote footer {
    font-size: 0.85rem;
    font-style: normal;
    color: var(--color-text);
    font-weight: 500;
}

/* CTA Section */
.cta {
    text-align: center;
    padding: 6rem 2rem;
}

.cta h2 {
    margin-bottom: 0.5rem;
}

.cta > .section-container > p:nth-of-type(1) {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
}

.cta-subtext {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 2.5rem;
}

.cta-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 1.25rem 2.5rem;
    background: var(--color-accent);
    color: white;
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    letter-spacing: 0.05em;
    transition: all 0.3s ease;
    border: 2px solid var(--color-accent);
}

.cta-button:hover {
    background: transparent;
    color: var(--color-accent);
}

.cta-button .arrow {
    display: inline-block;
    transition: transform 0.3s ease;
}

.cta-button:hover .arrow {
    transform: translateX(4px);
}

.disclaimer {
    font-size: 0.8rem;
    color: var(--color-text-light);
    margin-top: 2rem;
    line-height: 1.6;
}

/* Footer */
.footer {
    border-top: 1px solid var(--color-border);
    padding: 3rem 2rem;
    background: var(--color-bg-alt);
    text-align: center;
}

.footer-content p {
    font-size: 0.85rem;
    color: var(--color-text-light);
    margin: 0.5rem 0;
}

.tagline {
    font-style: italic;
    margin-top: 1rem;
}

/* Animations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive */
@media (max-width: 768px) {
    .nav-container {
        flex-direction: column;
        gap: 1.5rem;
    }

    .nav-links {
        gap: 1.5rem;
        font-size: 12px;
    }

    .hero {
        padding: 4rem 1rem;
    }

    .section {
        padding: 3rem 1rem;
    }

    .solution-grid,
    .gallery-grid {
        grid-template-columns: 1fr;
    }

    .comparison-table {
        font-size: 0.85rem;
    }

    th, td {
        padding: 0.75rem;
    }

    .criteria {
        width: auto;
    }

    blockquote {
        padding: 1.5rem;
    }

    .cta-button {
        padding: 1rem 2rem;
    }
}

@media (max-width: 480px) {
    :root {
        font-size: 15px;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .section h2 {
        font-size: 1.5rem;
    }

    .nav-links {
        display: none;
    }

    .symptoms-grid,
    .results-grid,
    .testimonials-grid {
        grid-template-columns: 1fr;
    }

    table {
        font-size: 0.75rem;
    }

    .criteria {
        display: none;
    }

    td {
        text-align: center;
    }
}