/* --- Variables & Reset --- */
:root {
    --color-primary: #1e293b; /* Dark Navy */
    --color-secondary: #0f172a; /* Darker Navy */
    --color-accent: #cca43b; /* Gold */
    --color-text: #334155;
    --color-text-light: #94a3b8;
    --color-white: #ffffff;
    --color-bg-light: #f8fafc;
    
    --font-main: 'Inter', sans-serif;
    --font-heading: 'Playfair Display', serif;
    
    --spacing-sm: 1rem;
    --spacing-md: 2rem;
    --spacing-lg: 4rem;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text);
    line-height: 1.6;
    background-color: var(--color-white);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
    border-radius: 8px;
}

a { text-decoration: none; color: inherit; }
ul { list-style: none; }

.container {
    width: 90%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 var(--spacing-sm);
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--color-primary);
    margin-bottom: var(--spacing-sm);
}

h1 { font-size: 2.5rem; line-height: 1.2; }
h2 { font-size: 2rem; text-align: center; margin-bottom: var(--spacing-md); }
h3 { font-size: 1.5rem; }

.text-white { color: var(--color-white); }
.text-white-50 { color: rgba(255,255,255,0.7); text-align: center; margin-bottom: var(--spacing-lg); }

/* --- Components --- */
.btn {
    display: inline-block;
    padding: 12px 24px;
    border-radius: 4px;
    font-weight: 600;
    transition: all 0.3s ease;
    text-align: center;
}

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

.btn-primary:hover {
    background-color: #b89334;
    transform: translateY(-2px);
}

.section { padding: var(--spacing-lg) 0; }
.bg-light { background-color: var(--color-bg-light); }
.bg-dark { background-color: var(--color-primary); color: var(--color-white); }

/* --- Nav --- */
.navbar {
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo { font-weight: 700; font-size: 1.2rem; color: var(--color-primary); }

.nav-links { display: flex; gap: var(--spacing-md); }
.nav-links a { font-weight: 500; font-size: 0.9rem; }
.nav-links a:hover { color: var(--color-accent); }

/* --- Hero --- */
.hero {
    background: linear-gradient(rgba(15, 23, 42, 0.8), rgba(15, 23, 42, 0.8)), 
                url('https://images.unsplash.com/photo-1552465011-b4e21bf6e79a?auto=format&fit=crop&q=80&w=1920') center/cover;
    color: var(--color-white);
    padding: 6rem 0;
    text-align: center;
}

.eyebrow { 
    text-transform: uppercase; 
    letter-spacing: 2px; 
    font-size: 0.9rem; 
    color: var(--color-accent); 
    display: block;
    margin-bottom: 1rem;
}

.hero h1 { color: var(--color-white); margin-bottom: 1.5rem; }
.hero .accent { color: var(--color-accent); }
.subtitle { max-width: 600px; margin: 0 auto 2rem; opacity: 0.9; }

/* --- Grids --- */
.grid-2 {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--spacing-md);
}

@media(min-width: 768px) {
    .grid-2 { grid-template-columns: 1fr 1fr; }
    h1 { font-size: 3.5rem; }
}

/* --- Comparison Section --- */
.highlight-bg {
    background: var(--color-bg-light);
    padding: var(--spacing-md);
    border-radius: 8px;
    border-left: 4px solid var(--color-accent);
}

.logic-block { margin-top: var(--spacing-md); }
.logic-block blockquote {
    font-size: 1.1rem;
    font-style: italic;
    color: var(--color-primary);
    margin-bottom: var(--spacing-md);
    padding: var(--spacing-sm);
    border-left: 2px solid var(--color-accent);
}

/* --- Cards --- */
.cards-grid .card {
    background: var(--color-white);
    padding: var(--spacing-md);
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
}

.card h3 { color: var(--color-accent); }
.card-subtitle { font-weight: 600; margin-bottom: 1rem; }
.card ul li { margin-bottom: 0.5rem; padding-left: 1.2rem; position: relative; }
.card ul li::before {
    content: "•"; color: var(--color-accent);
    position: absolute; left: 0;
}
.recommendation {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid #eee;
    font-size: 0.9rem;
}

/* --- Mechanics Steps --- */
.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: var(--spacing-md);
}
.step { text-align: center; }
.step-number {
    font-family: var(--font-heading);
    font-size: 3rem;
    color: var(--color-accent);
    opacity: 0.3;
    line-height: 1;
}
.quote-box {
    margin-top: var(--spacing-lg);
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--spacing-md);
    text-align: center;
    border-radius: 8px;
    font-weight: 500;
}

/* --- Projects --- */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.project-card {
    background: var(--color-white);
    border-radius: 8px;
    overflow: hidden;
    color: var(--color-text);
}

.project-img {
    height: 200px;
    background-size: cover;
    background-position: center;
}

.project-content { padding: var(--spacing-md); }
.project-content h3 { color: var(--color-primary); margin-bottom: 0.5rem; }
.project-specs li { margin-bottom: 0.25rem; font-size: 0.9rem; }

/* --- Stats --- */
.stats-grid {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    text-align: center;
}
.stat-val { font-size: 3rem; font-weight: 700; color: var(--color-accent); }
.stat-label { font-weight: 500; }

/* --- FAQ --- */
.faq-item {
    background: var(--color-white);
    margin-bottom: 1rem;
    padding: 1rem;
    border-radius: 4px;
    cursor: pointer;
}
.faq-item summary { font-weight: 600; list-style: none; position: relative; padding-right: 2rem; }
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after { content: "+"; position: absolute; right: 0; color: var(--color-accent); }
.faq-item[open] summary::after { content: "-"; }
.faq-item p { margin-top: 1rem; font-size: 0.95rem; }

/* --- Event --- */
.event-section { background-color: #f1f5f9; }
.event-content { display: flex; flex-direction: column; gap: var(--spacing-md); }
@media(min-width: 768px) {
    .event-content { flex-direction: row; align-items: center; }
}
.event-text { flex: 1; }
.event-image { flex: 1; }
.event-features { margin: 1.5rem 0; }
.event-features li { margin-bottom: 0.5rem; font-weight: 500; }
.promo-box { 
    background: #fff; border: 1px solid var(--color-accent); 
    padding: 1rem; margin-bottom: 1.5rem; border-radius: 4px; font-size: 0.9rem;
}

/* --- Footer --- */
.footer {
    background: var(--color-secondary);
    color: var(--color-white);
    padding: 2rem 0;
    text-align: center;
    font-size: 0.8rem;
}
.footer-note { opacity: 0.5; margin-top: 0.5rem; }

/* Mobile Tweaks */
@media (max-width: 600px) {
    .hero { padding: 4rem 0; }
    h1 { font-size: 2rem; }
    .nav-links { display: none; } /* Simplified for MVP */
}