/* Shared styles for the Sonra marketing site.
   Used by index.html and the comparison pages (monograph/factor-alternative.html). */

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

:root {
    --color-primary: #1a3a2f;
    --color-primary-light: #2d5a47;
    --color-accent: #10b981;
    --color-accent-light: #34d399;
    --color-bg: #fafafa;
    --color-bg-subtle: #f4f4f5;
    --color-text: #18181b;
    --color-text-secondary: #52525b;
    --color-text-muted: #71717a;
    --color-border: #e4e4e7;
    --font-sans:
        "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
        sans-serif;
    --max-width: 1200px;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background: rgba(250, 250, 250, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--color-border);
}

.nav-container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 24px;
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 14px;
    font-weight: 700;
    font-size: 1.75rem;
    color: var(--color-primary);
    text-decoration: none;
}

.nav-logo svg {
    width: 52px;
    height: 52px;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

.nav-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color 0.2s;
}

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

.nav-cta {
    display: flex;
    align-items: center;
    gap: 12px;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 10px 20px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    text-decoration: none;
    transition: all 0.2s;
    cursor: pointer;
    border: none;
    font-family: inherit;
}

.btn-ghost {
    color: var(--color-text-secondary);
    background: transparent;
}

.btn-ghost:hover {
    color: var(--color-text);
    background: var(--color-bg-subtle);
}

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

.btn-primary:hover {
    background: var(--color-primary-light);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(26, 58, 47, 0.25);
}

.btn-secondary {
    background: white;
    color: var(--color-primary);
    border: 1px solid var(--color-border);
}

.btn-secondary:hover {
    border-color: var(--color-primary);
    background: var(--color-bg-subtle);
}

.btn-large {
    padding: 14px 28px;
    font-size: 1rem;
}

/* Hero Section */
.hero {
    padding: 160px 24px 120px;
    text-align: center;
    background: var(--color-bg);
    position: relative;
    overflow: hidden;
}

.hero::before {
    content: "";
    position: absolute;
    top: -200px;
    right: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(
        circle,
        rgba(16, 185, 129, 0.08) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.hero::after {
    content: "";
    position: absolute;
    bottom: -100px;
    left: -200px;
    width: 500px;
    height: 500px;
    background: radial-gradient(
        circle,
        rgba(26, 58, 47, 0.06) 0%,
        transparent 70%
    );
    pointer-events: none;
}

.hero-container {
    max-width: 700px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    background: white;
    border: 1px solid var(--color-border);
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--color-text-secondary);
    margin-bottom: 24px;
}

.hero-badge-dot {
    width: 8px;
    height: 8px;
    background: var(--color-accent);
    border-radius: 50%;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%,
    100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

.hero h1 {
    font-size: clamp(2.5rem, 5vw, 3.75rem);
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -0.02em;
    margin-bottom: 24px;
}

.hero-gradient {
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero p {
    font-size: 1.25rem;
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto 40px;
    line-height: 1.7;
}

.hero-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

/* Logos Section */
.logos {
    padding: 60px 24px;
    border-bottom: 1px solid var(--color-border);
}

.logos-container {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
}

.logos p {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 32px;
}

/* Features Section */
.features {
    padding: 120px 24px;
}

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

.section-header {
    text-align: center;
    max-width: 600px;
    margin: 0 auto 64px;
}

.section-label {
    display: inline-block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--color-accent);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
}

.section-header h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.section-header p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 24px;
}

.feature-card {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    border-color: transparent;
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
    transform: translateY(-4px);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, #ecfdf5 0%, #d1fae5 100%);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 24px;
    height: 24px;
    color: var(--color-primary);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* Bento Section */
.bento {
    padding: 0 24px 120px;
}

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

.bento-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.bento-item {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    transition: all 0.3s;
    display: flex;
    flex-direction: column;
}

.bento-item:hover {
    box-shadow: 0 20px 40px -12px rgba(0, 0, 0, 0.1);
}

.bento-content {
    padding: 32px 32px 24px;
}

.bento-content h3 {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
}

.bento-content p {
    color: var(--color-text-secondary);
    line-height: 1.6;
    font-size: 0.95rem;
}

.bento-image {
    padding: 0 24px;
    flex: 1;
    display: flex;
    align-items: flex-end;
}

.bento-image img {
    width: 100%;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
    border: 1px solid var(--color-border);
    border-bottom: none;
}

/* Stats Section */
.stats {
    padding: 80px 24px;
    background: var(--color-primary);
    color: white;
}

.stats-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 48px;
    text-align: center;
}

.stat-item h3 {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 8px;
    background: linear-gradient(
        135deg,
        white 0%,
        var(--color-accent-light) 100%
    );
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-item p {
    font-size: 1rem;
    opacity: 0.8;
}

/* Testimonial Section */
.testimonial {
    padding: 120px 24px;
    background: linear-gradient(
        180deg,
        var(--color-bg) 0%,
        #f0fdf4 100%
    );
}

.testimonial-container {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.testimonial-quote {
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 500;
    line-height: 1.5;
    margin-bottom: 40px;
    color: var(--color-text);
}

.testimonial-author {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
}

.testimonial-avatar {
    width: 56px;
    height: 56px;
    border-radius: 50%;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        var(--color-accent) 100%
    );
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: 600;
    font-size: 1.25rem;
}

.testimonial-info h4 {
    font-weight: 600;
    margin-bottom: 2px;
}

.testimonial-info p {
    color: var(--color-text-muted);
    font-size: 0.9rem;
}

/* Pricing Section */
.pricing {
    padding: 120px 24px;
}

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

.pricing-stripe {
    margin-top: 48px;
}

.pricing-note {
    text-align: center;
    margin-top: 32px;
}

.pricing-note p {
    color: var(--color-text-secondary);
    margin-bottom: 16px;
}

/* FAQ Section */
.faq {
    padding: 120px 24px;
    background: var(--color-bg-subtle);
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-list {
    margin-top: 64px;
}

.faq-item {
    background: white;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    margin-bottom: 12px;
    overflow: hidden;
}

.faq-question {
    width: 100%;
    padding: 24px;
    background: none;
    border: none;
    text-align: left;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-family: inherit;
    color: var(--color-text);
}

.faq-question:hover {
    background: var(--color-bg-subtle);
}

.faq-icon {
    width: 24px;
    height: 24px;
    transition: transform 0.3s;
}

.faq-item.open .faq-icon {
    transform: rotate(45deg);
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
}

.faq-item.open .faq-answer {
    max-height: 500px;
}

.faq-answer p {
    padding: 0 24px 24px;
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* CTA Section */
.cta {
    padding: 120px 24px;
    background: linear-gradient(
        135deg,
        var(--color-primary) 0%,
        #0f2920 100%
    );
    color: white;
    text-align: center;
}

.cta-container {
    max-width: 700px;
    margin: 0 auto;
}

.cta h2 {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

.cta p {
    font-size: 1.1rem;
    opacity: 0.9;
    margin-bottom: 40px;
}

.cta .btn-primary {
    background: white;
    color: var(--color-primary);
}

.cta .btn-primary:hover {
    background: var(--color-bg-subtle);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

/* Footer */
.footer {
    padding: 60px 24px;
    border-top: 1px solid var(--color-border);
}

.footer-container {
    max-width: var(--max-width);
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 24px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    text-decoration: none;
}

.footer-logo svg {
    width: 28px;
    height: 28px;
}

.footer-links {
    display: flex;
    gap: 32px;
}

.footer-links a {
    color: var(--color-text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color 0.2s;
}

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

.footer-copy {
    color: var(--color-text-muted);
    font-size: 0.85rem;
}

/* Mobile Navigation */
.nav-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle svg {
    width: 24px;
    height: 24px;
}

/* Responsive */
@media (max-width: 768px) {
    .nav-links,
    .nav-cta {
        display: none;
    }

    .nav-toggle {
        display: block;
    }

    .hero {
        padding: 120px 24px 60px;
    }

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

    .hero-cta .btn {
        width: 100%;
    }

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

    .bento-content {
        padding: 24px;
    }

    .bento-image {
        padding: 0 24px;
    }

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

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

    .footer-container {
        flex-direction: column;
        text-align: center;
    }

    .footer-links {
        flex-wrap: wrap;
        justify-content: center;
    }
}

/* ------------------------------------------------------------
   Comparison / "alternative" landing pages
   (used by monograph-alternative.html, factor-alternative.html)
   ------------------------------------------------------------ */

/* Intro prose */
.intro {
    padding: 80px 24px 0;
}

.intro-container {
    max-width: 760px;
    margin: 0 auto;
}

.intro-container h2 {
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    margin: 8px 0 16px;
}

.intro-container p {
    font-size: 1.1rem;
    color: var(--color-text-secondary);
    margin-bottom: 20px;
    line-height: 1.8;
}

/* Comparison table */
.comparison {
    padding: 100px 24px;
}

.comparison-container {
    max-width: 900px;
    margin: 0 auto;
}

.comparison-table-wrap {
    overflow-x: auto;
    margin-top: 48px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    background: white;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 560px;
}

.comparison-table th,
.comparison-table td {
    padding: 18px 24px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}

.comparison-table thead th {
    font-size: 0.95rem;
    font-weight: 700;
    background: var(--color-bg-subtle);
}

.comparison-table thead th.sonra-col {
    color: var(--color-primary);
}

.comparison-table th.center,
.comparison-table td.center {
    text-align: center;
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table td.feature {
    font-weight: 500;
    color: var(--color-text);
}

.comparison-table .sonra-col {
    background: rgba(16, 185, 129, 0.04);
}

.check {
    color: var(--color-accent);
    font-weight: 700;
}

.cross {
    color: var(--color-text-muted);
}

.comparison-note {
    font-size: 0.8rem;
    color: var(--color-text-muted);
    margin-top: 16px;
    text-align: center;
    line-height: 1.6;
}