/* Tociva Website - Comprehensive CSS */

:root {
    --brand: #B11226;
    --brand-dark: #7F0D1B;
    --bg: #FFFFFF;
    --surface: #F8FAFC;
    --surface-soft: #F3F4F6;
    --text: #111827;
    --muted: #6B7280;
    --border: #E5E7EB;
    --success: #15803D;
    --warning: #B45309;

    --transition: all 0.3s ease;
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2rem;
    --spacing-xl: 3rem;
    --spacing-2xl: 4rem;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen', 'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue', sans-serif;
    color: var(--text);
    background-color: var(--bg);
    line-height: 1.6;
    font-size: 16px;
}

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

/* Typography */
h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    line-height: 1.3;
    margin-bottom: var(--spacing-md);
}

h1 {
    font-size: 3rem;
}

h2 {
    font-size: 2.25rem;
}

h3 {
    font-size: 1.5rem;
}

p {
    margin-bottom: var(--spacing-md);
    color: var(--text);
}

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

a:hover {
    color: var(--brand-dark);
}

/* Header & Navigation */
.header {
    background-color: var(--bg);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--spacing-md) 0;
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text);
    text-decoration: none;
}

.logo svg {
    width: 40px;
    height: 40px;
}

.nav {
    display: flex;
    gap: var(--spacing-lg);
    align-items: center;
}

.nav-link {
    color: var(--text);
    font-weight: 500;
    transition: var(--transition);
}

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

/* Buttons */
.button {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 0.5rem;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.button-primary {
    background-color: var(--brand);
    color: white;
}

.button-primary:hover {
    background-color: var(--brand-dark);
}

.button-secondary {
    background-color: transparent;
    color: var(--brand);
    border-color: var(--brand);
}

.button-secondary:hover {
    background-color: var(--surface-soft);
}

/* Hero Section */
.hero {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

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

.eyebrow {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--brand);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
}

.hero-headline {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text);
    margin-bottom: var(--spacing-md);
    line-height: 1.2;
}

.hero-subheadline {
    font-size: 1.25rem;
    color: var(--text);
    margin-bottom: var(--spacing-md);
    line-height: 1.6;
}

.hero-supporting {
    font-size: 1.05rem;
    color: var(--muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.6;
}

.hero-buttons {
    display: flex;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.hero-trust {
    font-size: 0.95rem;
    color: var(--muted);
    font-style: italic;
}

.hero-visual {
    width: 100%;
}

.hero-visual svg {
    width: 100%;
    height: auto;
    max-width: 600px;
}

/* Sections */
.section-title {
    font-size: 2.25rem;
    text-align: center;
    margin-bottom: var(--spacing-lg);
    color: var(--text);
}

.section-intro {
    text-align: center;
    color: var(--muted);
    font-size: 1.1rem;
    margin-bottom: var(--spacing-2xl);
}

/* Concept Section */
.concept-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.concept-content {
    max-width: 800px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.concept-content p {
    font-size: 1.1rem;
    color: var(--text);
    line-height: 1.8;
}

.belief-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-lg);
}

.belief-card {
    background-color: var(--bg);
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
}

.belief-card h3 {
    color: var(--brand);
    margin-bottom: var(--spacing-md);
}

/* Products Section */
.products-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-lg);
}

.product-card,
.service-card,
.usecase-card,
.build-card,
.help-card,
.why-card,
.decentralized-card,
.belief-card {
    background-color: var(--surface);
    padding: var(--spacing-lg);
    border-radius: 0.75rem;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.product-card:hover,
.service-card:hover,
.usecase-card:hover {
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
    border-color: var(--brand);
}

.product-card h3,
.service-card h3,
.usecase-card h3,
.build-card h3,
.help-card h3,
.why-card h3,
.decentralized-card h3 {
    color: var(--text);
    margin-bottom: var(--spacing-md);
    font-size: 1.25rem;
}

.card-subtitle {
    font-size: 0.95rem;
    color: var(--brand);
    font-weight: 600;
    margin-bottom: var(--spacing-sm);
}

.card-description {
    color: var(--muted);
    margin-bottom: var(--spacing-md);
    line-height: 1.7;
}

.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-xs);
    margin-bottom: var(--spacing-md);
}

.tag {
    display: inline-block;
    background-color: var(--surface-soft);
    color: var(--text);
    padding: 0.35rem 0.75rem;
    border-radius: 0.35rem;
    font-size: 0.85rem;
    font-weight: 500;
}

.card-link {
    display: inline-block;
    color: var(--brand);
    font-weight: 600;
    margin-top: var(--spacing-md);
    transition: var(--transition);
}

.card-link:hover {
    color: var(--brand-dark);
}

/* Services Section */
.services-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: var(--spacing-lg);
}

.service-card {
    background-color: var(--bg);
}

.use-cases,
.key-message {
    background-color: var(--surface-soft);
    padding: var(--spacing-md);
    border-radius: 0.5rem;
    margin-bottom: var(--spacing-md);
}

.use-cases strong,
.key-message strong {
    color: var(--text);
    display: block;
    margin-bottom: var(--spacing-sm);
}

.use-cases ul {
    list-style: none;
    padding-left: 0;
}

.use-cases li {
    color: var(--muted);
    padding: 0.35rem 0;
    padding-left: 1.5rem;
    position: relative;
}

.use-cases li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--brand);
    font-weight: bold;
}

/* Decentralized Section */
.decentralized-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.decentralized-content {
    max-width: 900px;
    margin: 0 auto var(--spacing-2xl);
    text-align: center;
}

.decentralized-content p {
    font-size: 1.05rem;
    color: var(--text);
    line-height: 1.8;
}

.highlight {
    font-size: 1.25rem !important;
    color: var(--brand);
    font-weight: 600;
    margin-top: var(--spacing-lg);
}

.decentralized-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Use Cases Section */
.usecases-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.usecases-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Builds Section */
.builds-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.builds-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Help Section */
.help-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
}

.help-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Why Section */
.why-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--bg);
}

.why-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--spacing-lg);
}

/* Final CTA Section */
.final-cta-section {
    padding: var(--spacing-2xl) 0;
    background-color: var(--surface-soft);
    text-align: center;
}

.final-cta-section h2 {
    font-size: 2rem;
    margin-bottom: var(--spacing-md);
}

.final-cta-section p {
    font-size: 1.1rem;
    color: var(--muted);
    margin-bottom: var(--spacing-lg);
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Footer */
.footer {
    background-color: var(--text);
    color: white;
    padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

.footer-content {
    display: grid;
    grid-template-columns: 1fr 2fr;
    gap: var(--spacing-2xl);
    margin-bottom: var(--spacing-2xl);
    padding-bottom: var(--spacing-2xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand {
    display: flex;
    flex-direction: column;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    color: white;
    font-weight: 700;
    margin-bottom: var(--spacing-md);
    text-decoration: none;
}

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

.footer-tagline {
    color: var(--muted);
    font-size: 0.95rem;
    margin-bottom: 0;
}

.footer-links {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: var(--spacing-lg);
}

.footer-section h4 {
    color: white;
    font-size: 0.95rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    font-weight: 600;
}

.footer-section ul {
    list-style: none;
}

.footer-section li {
    margin-bottom: var(--spacing-sm);
}

.footer-section a {
    color: var(--muted);
    text-decoration: none;
    transition: var(--transition);
}

.footer-section a:hover {
    color: white;
}

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

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 0 var(--spacing-sm);
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    h3 {
        font-size: 1.25rem;
    }

    .header-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }

    .nav {
        flex-direction: column;
        gap: var(--spacing-md);
        width: 100%;
    }

    .nav-link {
        padding: 0.5rem 0;
        border-bottom: 1px solid var(--border);
    }

    .hero-content {
        grid-template-columns: 1fr;
    }

    .hero-headline {
        font-size: 2rem;
    }

    .hero-subheadline {
        font-size: 1.1rem;
    }

    .hero-buttons {
        flex-direction: column;
    }

    .button {
        width: 100%;
        text-align: center;
    }

    .footer-content {
        grid-template-columns: 1fr;
    }

    .belief-cards,
    .products-grid,
    .services-grid,
    .usecases-grid,
    .decentralized-grid,
    .builds-grid,
    .help-grid,
    .why-grid {
        grid-template-columns: 1fr;
    }

    .section-title {
        font-size: 1.75rem;
    }
}

@media (max-width: 480px) {
    body {
        font-size: 14px;
    }

    h1 {
        font-size: 1.5rem;
    }

    h2 {
        font-size: 1.35rem;
    }

    h3 {
        font-size: 1.1rem;
    }

    .hero {
        padding: var(--spacing-lg) 0;
    }

    .hero-headline {
        font-size: 1.5rem;
    }

    .button {
        padding: 0.65rem 1.25rem;
        font-size: 0.95rem;
    }

    .footer-content {
        margin-bottom: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus styles */
a:focus,
button:focus,
.button:focus {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
}

/* Print styles */
@media print {
    .header,
    .footer,
    .nav {
        display: none;
    }

    body {
        background-color: white;
        color: black;
    }

    a {
        color: black;
    }
}