/* VARIABLES DE DISEÑO */
:root {
    --primary: #0f172a;       /* Azul Oscuro - Autoridad */
    --accent: #2563eb;        /* Azul Vibrante - Enlaces/Detalles */
    --cta: #10b981;           /* Verde - Acción Principal */
    --cta-hover: #059669;
    --bg-light: #f8fafc;
    --text-main: #334155;
    --text-light: #64748b;
    --white: #ffffff;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --radius: 12px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', system-ui, -apple-system, sans-serif;
}

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

/* UTILIDADES */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

.btn {
    display: inline-block;
    padding: 12px 30px;
    border-radius: 50px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--cta);
    color: var(--white);
    box-shadow: 0 4px 14px rgba(16, 185, 129, 0.4);
}

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

.btn-outline {
    border: 2px solid var(--primary);
    color: var(--primary);
    margin-left: 10px;
}

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

/* HEADER */
header {
    background: var(--white);
    padding: 20px 0;
    box-shadow: 0 1px 3px rgba(0,0,0,0.05);
    position: sticky;
    top: 0;
    z-index: 100;
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--primary);
}

.logo span {
    color: var(--cta);
}

/* HERO SECTION */
.hero {
    padding: 80px 0;
    text-align: center;
    background: linear-gradient(180deg, #fff 0%, #f1f5f9 100%);
}

.badge {
    background-color: #e0f2fe;
    color: #0369a1;
    padding: 5px 15px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 20px;
    display: inline-block;
}

.hero h1 {
    font-size: 3rem;
    color: var(--primary);
    margin-bottom: 20px;
    line-height: 1.2;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-light);
    max-width: 700px;
    margin: 0 auto 30px;
}

/* PASOS (STEPS) */
.steps-section {
    padding: 80px 0;
    background-color: var(--white);
}

.section-title {
    text-align: center;
    margin-bottom: 50px;
}

.section-title h2 {
    font-size: 2.2rem;
    color: var(--primary);
    margin-bottom: 10px;
}

.steps-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 30px;
}

.step-card {
    background: var(--bg-light);
    padding: 30px;
    border-radius: var(--radius);
    text-align: center;
    transition: transform 0.3s ease;
    border: 1px solid #e2e8f0;
}

.step-card:hover {
    transform: translateY(-5px);
    border-color: var(--cta);
}

.step-number {
    background-color: var(--primary);
    color: var(--white);
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-weight: bold;
    font-size: 1.2rem;
}

.step-card h3 {
    margin-bottom: 15px;
    color: var(--primary);
}

/* FEATURES */
.features {
    padding: 80px 0;
    background-color: var(--primary);
    color: var(--white);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 40px;
    align-items: center;
}

.feature-list li {
    list-style: none;
    margin-bottom: 20px;
    font-size: 1.1rem;
    display: flex;
    align-items: center;
}

.feature-list li i {
    color: var(--cta);
    margin-right: 15px;
    font-size: 1.2rem;
}

/* FOOTER */
footer {
    background-color: #0f172a;
    color: #94a3b8;
    padding: 40px 0;
    text-align: center;
    border-top: 1px solid #1e293b;
}

footer p {
    font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero h1 { font-size: 2rem; }
    .features-grid { grid-template-columns: 1fr; }
    .btn { width: 100%; margin: 10px 0 0 0; }
    .btn-outline { margin-left: 0; }
}