/* ====== Reset & Variables ====== */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --secondary: #64748b;
    --bg-light: #f8fafc;
    --text-main: #0f172a;
    --text-muted: #475569;
    --surface: #ffffff;
    --border: #e2e8f0;
    --font-main: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ====== Base Layout ====== */
html, body {
    height: 100%;
    width: 100%;
}

body {
    font-family: var(--font-main);
    background-color: var(--bg-light);
    color: var(--text-main);
    line-height: 1.6;
    /* Override any flex centering from legacy styles if they leak */
    display: block; 
    padding: 0;
}

/* ====== Navigation ====== */
.navbar {
    background: rgba(255, 255, 255, 0.9);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
}

.brand {
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--text-main);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.brand span {
    color: var(--primary);
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    margin-left: 1.5rem;
    transition: color 0.2s;
}

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

/* ====== Hero Section ====== */
.hero-section {
    max-width: 1200px;
    margin: 4rem auto;
    padding: 0 1.5rem;
    text-align: center;
}

.badge {
    display: inline-block;
    background: #eff6ff;
    color: var(--primary);
    padding: 0.35rem 1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    border: 1px solid #dbeafe;
}

.hero-title {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #0f172a, #334155);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    font-weight: 400;
}

/* ====== Buttons ====== */
.cta-group {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 4rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: all 0.2s;
    cursor: pointer;
    text-decoration: none;
}

.btn-primary {
    background: var(--primary);
    color: white;
    border: 1px solid var(--primary);
    box-shadow: 0 4px 6px -1px rgba(37, 99, 235, 0.2);
}

.btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-1px);
    box-shadow: 0 6px 8px -1px rgba(37, 99, 235, 0.3);
}

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

.btn-secondary:hover {
    background: #f1f5f9;
    border-color: #cbd5e1;
}

/* ====== Features Grid ====== */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    max-width: 1200px;
    margin: 0 auto 4rem;
    padding: 0 1.5rem;
}

.feature-card {
    background: white;
    padding: 2rem;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: transform 0.2s, box-shadow 0.2s;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.05);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: #eff6ff;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.5rem;
    margin-bottom: 1.25rem;
}

.feature-title {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 0.75rem;
    color: var(--text-main);
}

.feature-desc {
    color: var(--text-muted);
    font-size: 0.95rem;
}

/* ====== Footer ====== */
.footer {
    background: white;
    border-top: 1px solid var(--border);
    padding: 3rem 1.5rem;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.9rem;
}

.footer-links {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-bottom: 1.5rem;
}

.footer-links a {
    color: var(--text-muted);
    text-decoration: none;
}

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

/* ====== Responsive ====== */
@media (max-width: 768px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .cta-group {
        flex-direction: column;
    }
    .btn {
        width: 100%;
    }
    .navbar {
        padding: 1rem;
    }
}