/* Sunbloom Website Stylesheet
    Inspired by LangChain's clean, professional aesthetic.
*/

/* --- VARIABLES & BASE --- */
:root {
    --primary-green: #16A34A; /* A strong, confident green for CTAs */
    --background-light: #F9FAFB; /* A very light grey for section backgrounds */
    --border-color: #E5E7EB;
    --text-dark: #111827;
    --text-light: #4B5563;
    
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    --font-display: 'Lexend', var(--font-sans);
}

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

body {
    font-family: var(--font-sans);
    color: var(--text-light);
    background-color: #fff;
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

.text-center { text-align: center; }
.section-bg { background-color: var(--background-light); }

/* --- TYPOGRAPHY --- */
h1, h2, h3 {
    font-family: var(--font-display);
    color: var(--text-dark);
    line-height: 1.2;
}
.hero-headline { font-size: 3.5rem; }
.hero-subheadline { font-size: 1.25rem; max-width: 700px; margin: 1rem auto 2rem; }
.section-title { font-size: 2.5rem; margin-bottom: 1rem; }
.section-subtitle { font-size: 1rem; text-transform: uppercase; color: var(--text-light); letter-spacing: 1px; }
.section-intro { max-width: 650px; margin: 0 auto 2rem; font-size: 1.1rem; }

/* --- HEADER & NAVIGATION --- */
.main-header {
    background-color: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-color);
    padding: 1.5rem 0;
    position: sticky;
    top: 0;
    z-index: 10;
}
.main-header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.logo {
    font-family: var(--font-display);
    font-size: 1.5rem;
    color: var(--text-dark);
    text-decoration: none;
}
.nav-links {
    display: flex;
    align-items: center;
    list-style: none;
    gap: 1.5rem;
}
.nav-links a {
    text-decoration: none;
    color: var(--text-dark);
    font-weight: 500;
}
.nav-links a:hover, .nav-links a.active { color: var(--primary-green); }

/* --- BUTTONS --- */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    display: inline-block;
    transition: all 0.2s ease;
}
.btn-primary {
    background-color: var(--primary-green);
    color: #fff;
    border: 1px solid var(--primary-green);
}
.btn-primary:hover { background-color: #15803d; border-color: #15803d; transform: translateY(-2px); }
.btn-secondary {
    background-color: transparent;
    color: var(--text-dark);
    border: 1px solid var(--border-color);
}
.btn-secondary:hover { background-color: var(--background-light); }
.btn-lg { font-size: 1.1rem; padding: 1rem 2rem; }

/* --- SECTIONS --- */
.section { padding: 5rem 0; }
.hero-section { padding: 6rem 0; }
.trust-bar { padding: 2rem 0; border-top: 1px solid var(--border-color); border-bottom: 1px solid var(--border-color); background-color: var(--background-light); }
.trust-bar .logos { display: flex; justify-content: space-around; align-items: center; gap: 2rem; flex-wrap: wrap; margin-top: 1rem; }
.trust-bar .logos span { font-family: var(--font-display); font-size: 1.2rem; color: #6B7280; }

.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 2rem; margin-top: 3rem; }
.card { padding: 2rem; text-align: left; border: 1px solid var(--border-color); border-radius: 12px; }
.card-icon { font-size: 2rem; color: var(--primary-green); margin-bottom: 1rem; }

.service-pillars { margin-top: 3rem; display: grid; grid-template-columns: 1fr 1fr; gap: 2rem; }
.pillar { padding: 2rem; border: 1px solid var(--border-color); border-radius: 12px; background: #fff; }

.grid-2-about { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: center; }
.about-image { background-color: var(--border-color); border-radius: 12px; min-height: 400px; }

.final-cta-section { background-color: var(--text-dark); color: #fff; }
.final-cta-section h2, .final-cta-section p { color: #fff; }
.calendly-placeholder { background-color: #fff; border-radius: 12px; padding: 2rem; min-height: 400px; margin-top: 2rem; color: var(--text-light); display: flex; align-items: center; justify-content: center; }

/* --- BLOG STYLES --- */
.blog-hero { padding: 5rem 0; background-color: var(--background-light); }
.blog-grid { padding-bottom: 5rem; }
.blog-card { display: block; text-decoration: none; color: inherit; border: 1px solid var(--border-color); border-radius: 12px; overflow: hidden; transition: all 0.2s ease; }
.blog-card:hover { transform: translateY(-5px); box-shadow: 0 10px 20px rgba(0,0,0,0.05); }
.blog-card.placeholder { opacity: 0.6; }
.blog-card .card-content { padding: 1.5rem; }
.blog-card h3 { margin-bottom: 0.5rem; }
.blog-card .card-footer { margin-top: 1rem; padding-top: 1rem; border-top: 1px solid var(--border-color); display: flex; justify-content: space-between; font-size: 0.9rem; color: var(--text-light); }

.blog-post-header { padding: 5rem 0; background-color: var(--background-light); }
.post-title { font-size: 3rem; }
.post-meta { font-size: 1rem; color: var(--text-light); margin-top: 1rem; }
.blog-post-content { padding: 4rem 0; }
.blog-post-content .narrow { max-width: 800px; }
.blog-post-content h2 { margin-top: 3rem; margin-bottom: 1.5rem; border-bottom: 2px solid var(--border-color); padding-bottom: 0.5rem; }
.blog-post-content h3 { margin-top: 2rem; margin-bottom: 1rem; }
.blog-post-content pre { margin: 2rem 0; }
.blog-post-content ul, .blog-post-content ol { padding-left: 20px; margin: 1.5rem 0; }
.blog-post-content .output-example { border-left: 4px solid var(--primary-green); padding-left: 1.5rem; margin: 1.5rem 0; font-style: italic; }
.final-cta-block { background-color: var(--background-light); border: 1px solid var(--border-color); padding: 3rem; border-radius: 12px; text-align: center; margin: 4rem auto 0; }


/* --- FOOTER --- */
.main-footer {
    background-color: var(--background-light);
    border-top: 1px solid var(--border-color);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.9rem;
}

/* --- RESPONSIVE --- */
@media (max-width: 768px) {
    .hero-headline { font-size: 2.5rem; }
    .grid-3, .service-pillars { grid-template-columns: 1fr; }
    .grid-2-about { grid-template-columns: 1fr; }
    .nav-links { display: none; } /* Simple responsive solution */
}