/* --- Variables de Diseño (Capital Flow Blue) --- */
:root {
    --primary: #3b82f6;
    --primary-dark: #1d4ed8;
    --background: #f8f9fa;
    --surface: #ffffff;
    --text-main: #1f2937;
    --text-muted: #6b7280;
    --border: #e5e7eb;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

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

.container {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 24px;
}

/* --- Navbar --- */
.navbar {
    background: var(--surface);
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
}

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 22px;
    font-weight: 800;
    color: var(--primary);
}

.logo i {
    font-size: 26px;
}

/* --- Hero Section --- */
.hero {
    background: linear-gradient(135deg, #ffffff 0%, #eff6ff 100%);
    padding: 80px 0;
    border-bottom: 1px solid var(--border);
}

.hero-text {
    max-width: 650px;
    margin: 0 auto;
    text-align: center;
}

.hero-text h1 {
    font-size: 42px;
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 20px;
    color: var(--text-main);
}

.hero-text p {
    font-size: 18px;
    color: var(--text-muted);
    margin-bottom: 32px;
}

/* --- Botones --- */
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: 12px;
    font-size: 16px;
    font-weight: 700;
    text-decoration: none;
    transition: transform 0.1s ease, background 0.2s ease;
}

.btn:active {
    transform: scale(0.98);
}

.btn-secondary {
    background: var(--surface);
    color: var(--primary);
    border: 2px solid var(--primary);
}

.btn-secondary:hover {
    background: #f0f7ff;
}

/* --- Features --- */
.features {
    padding: 80px 0;
    background: var(--surface);
}

.features h2 {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    margin-bottom: 48px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 32px;
}

.feature-card {
    background: var(--background);
    padding: 32px;
    border-radius: 16px;
    border: 1px solid var(--border);
    transition: y 0.2s ease;
}

.feature-card i {
    font-size: 36px;
    color: var(--primary);
    margin-bottom: 16px;
    display: inline-block;
}

.feature-card h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 12px;
}

.feature-card p {
    color: var(--text-muted);
    font-size: 15px;
}

/* --- Footer --- */
.footer {
    background: var(--text-main);
    color: #ffffff;
    padding: 32px 0;
    text-align: center;
    font-size: 14px;
}

.footer p {
    opacity: 0.7;
}

/* --- Responsive --- */
@media (max-width: 768px) {
    .hero-text h1 { font-size: 32px; }
    .hero-text p { font-size: 16px; }
    .hero { padding: 60px 0; }
}