@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Space+Grotesk:wght@500;600&display=swap');

:root {
    --sigaint-black: #000000;
    --sigaint-teal: #00C9C8;
    --sigaint-darkteal: #47817F;
    --sigaint-gray: #677381;
}

body {
    font-family: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

.heading-font {
    font-family: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
    font-weight: 600;
    letter-spacing: -0.025em;
}

.brand-teal {
    color: #00C9C8;
}

.section-heading {
    font-size: 2.25rem;
    line-height: 2.5rem;
    font-weight: 700;
    letter-spacing: -0.04em;
}

.nav-link {
    transition: color 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.nav-link:hover,
.nav-link.active {
    color: #00C9C8;
}

.feature-card {
    transition: transform 0.3s cubic-bezier(0.4, 0.0, 0.2, 1),
               box-shadow 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.05), 0 8px 10px -6px rgb(0 0 0 / 0.05);
}

.pricing-card {
    transition: all 0.3s cubic-bezier(0.4, 0.0, 0.2, 1);
}

.pricing-card.popular {
    box-shadow: 0 25px 50px -12px rgb(0 0 0 / 0.15);
    transform: scale(1.02);
}

.logo-svg {
    transition: transform 0.3s ease;
}

.hero-bg {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}

.page-hero {
    background: linear-gradient(145deg, #ffffff 0%, #f8fafc 100%);
}

.stat-number {
    font-variant-numeric: tabular-nums;
}

.modal {
    animation: modalPopIn 0.2s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes modalPopIn {
    from {
        opacity: 0;
        transform: scale(0.95) translateY(10px);
    }
    to {
        opacity: 1;
        transform: scale(1) translateY(0);
    }
}

.brand-button {
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    font-weight: 600;
    letter-spacing: -0.01em;
}

.brand-button:hover {
    transform: translateY(-1px);
    box-shadow: 0 10px 15px -3px rgb(0 201 200 / 0.2), 0 4px 6px -4px rgb(0 201 200 / 0.2);
}

.sigaint-logo-text {
    font-weight: 700;
    letter-spacing: -0.04em;
}

.prose-section p {
    color: #4b5563;
    line-height: 1.75;
    margin-bottom: 1rem;
}

.prose-section h3 {
    font-size: 1.25rem;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
}

.prose-section ul {
    list-style: disc;
    padding-left: 1.25rem;
    color: #4b5563;
    line-height: 1.75;
}

.prose-section li {
    margin-bottom: 0.5rem;
}

.article-card {
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.article-card:hover {
    border-color: #00C9C8;
    box-shadow: 0 4px 12px rgb(0 0 0 / 0.04);
}

.avatar-placeholder {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border-radius: 9999px;
    background: #e5e7eb;
    color: #4b5563;
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.02em;
    flex-shrink: 0;
}