/* style.css for BrainJuice AI - Perfect State */
/* The @import rule has been removed and is now handled by a <link> tag in index.html */

:root {
    --black: #000000;
    --white: #FFFFFF;
    --accent-kingfisher: #7AB6B6;
    --primary-dark: #2c3e50;
    --warm-gray: #a9a9a9; /* WCAG AA Compliant Gray */
    --cream: #f4f1e8;
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Roboto', sans-serif;
    --font-accent: 'Orbitron', sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
    background-color: var(--black);
    color: var(--white);
    font-family: var(--font-body);
    font-weight: 400;
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* --- LEFT-ALIGNED STICKY HEADER --- */
.sticky-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    background-color: rgba(0, 0, 0, 0.9);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid #222;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: flex-start;
    align-items: center;
}
.brand-block { text-align: left; }
.brand-block-link { text-decoration: none; color: inherit; }
.logo { font-family: var(--font-heading); font-weight: 700; font-size: 2rem; margin: 0; line-height: 1; }
.logo-brain { color: #aaaaaa; }
.logo-juice { color: #ffffff; }
.tagline { font-family: var(--font-body); font-weight: 300; font-size: 0.75rem; letter-spacing: 1.5px; color: #cccccc; text-transform: uppercase; margin: 0.25rem 0 0 0; padding: 0; }

/* --- Typography & Links --- */
h2, h3, h4 { font-family: var(--font-heading); font-weight: 700; line-height: 1.2; margin-bottom: 1.5rem; }
p { margin-bottom: 1rem; max-width: 65ch; margin-left: auto; margin-right: auto; }
a { color: var(--accent-kingfisher); text-decoration: none; }
.cta-button {
    display: inline-block;
    background-color: var(--accent-kingfisher);
    color: var(--black);
    font-family: var(--font-heading);
    font-weight: 700;
    padding: 14px 28px;
    border-radius: 50px;
    min-height: 48px;
    margin-top: 1rem;
    transition: transform 0.2s ease, background-color 0.2s ease;
}
.cta-button:hover, .cta-button:focus { transform: scale(1.05); background-color: var(--white); }

/* --- SECTIONS --- */
.content-section { padding: 4rem 1.5rem; text-align: center; }
.bg-dark { background-color: var(--primary-dark); }
.hero-section { padding: 4rem 1.5rem; }
.hero-content { max-width: 900px; margin: 0 auto; text-align: center; }
.hero-title { font-size: clamp(2.5rem, 10vw, 4.5rem); margin-bottom: 0.5rem; line-height: 1.1; font-weight: 700; }

.section-header { margin-bottom: 3rem; }
.section-header h3 { font-size: 1.8rem; }
.section-header p { font-size: 1.1rem; color: #cccccc; font-weight: 300; }
.digital-accent { font-family: var(--font-accent); font-weight: 500; color: var(--accent-kingfisher); font-size: 0.9rem; }

.feature-grid { display: grid; gap: 1.5rem; max-width: 900px; margin: 0 auto; }
.feature-card { background-color: #111; border: 1px solid var(--primary-dark); padding: 2rem; border-radius: 8px; }
.feature-card .card-icon { width: 44px; height: 44px; margin: 0 auto 1rem auto; color: var(--accent-kingfisher); }
.feature-card h4 { font-size: 1.2rem; }
.feature-card p { color: #b3b3b3; font-size: 0.95rem; font-weight: 300; margin-bottom: 0; }

.process-steps { display: flex; flex-direction: column; gap: 1.5rem; max-width: 900px; margin: 0 auto; }
.step-card { background-color: #1a1a1a; padding: 2rem; border-radius: 8px; display: flex; flex-direction: column; align-items: center; }
.step-number { font-family: var(--font-accent); font-size: 1.5rem; font-weight: 500; color: var(--accent-kingfisher); margin-bottom: 1rem; }
.step-content p { margin-bottom: 0; color: #b3b3b3; font-weight: 300; }

.contact-section { background-color: #111; border-radius: 12px; }
.contact-section .contact-icon { color: var(--accent-kingfisher); margin-bottom: 1.5rem; }
.contact-section h3 { font-family: var(--font-heading); font-weight: 700; font-size: clamp(1.8rem, 5vw, 2.2rem); color: var(--white); }
.contact-section p { font-family: var(--font-body); font-weight: 300; color: #cccccc; font-size: 1.1rem; line-height: 1.8; }

/* --- FOOTER BLOCK --- */
.site-footer { text-align: center; padding: 0; }
.demo-notice { background-color: var(--primary-dark); padding: 1.5rem; }
.demo-notice p { font-family: var(--font-body); font-weight: 400; font-size: 0.9rem; color: var(--cream); line-height: 1.6; max-width: 80ch; margin: 0 auto; }
.demo-notice strong { font-weight: 400; color: var(--accent-kingfisher); }
.footer-bottom { background-color: #101010; padding: 1.5rem; text-align: center; }
.footer-nav { margin-bottom: 1rem; display: flex; justify-content: center; gap: 1rem; }
.footer-nav a { font-family: var(--font-body); font-weight: 400; color: var(--warm-gray); text-decoration: none; font-size: 0.9rem; transition: color 0.2s ease; }
.footer-nav a:hover { color: var(--accent-kingfisher); }
.footer-bottom p { font-family: var(--font-body); font-weight: 400; color: var(--warm-gray); font-size: 0.9rem; margin: 0 auto; max-width: 100%; }

/* --- FAQ PAGE --- */
.faq-list { max-width: 700px; margin: 0 auto; }
.faq-item { background-color: #111; border-top: 3px solid var(--accent-kingfisher); padding: 1.5rem; margin-bottom: 1rem; border-radius: 8px; text-align: center; }
.faq-item h4 { margin-bottom: 0.5rem; }
.faq-item p { margin-bottom: 0; color: #ccc; font-weight: 300; }

/* --- PERFORMANCE --- */
.feature-card, .step-card, .cta-button { will-change: transform; }

@media (min-width: 600px) {
    .feature-grid { grid-template-columns: repeat(2, 1fr); }
    .logo { font-size: 2.5rem; }
}
@media (min-width: 900px) {
    .feature-grid { grid-template-columns: repeat(3, 1fr); }
}