@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@500;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --bg-dark: #0B1120;
    --bg-card: #1E293B;
    --bg-card-hover: #27354A;
    --text-main: #F8FAFC;
    --text-muted: #94A3B8;
    --accent: #0EA5E9;
    --accent-glow: rgba(14, 165, 233, 0.5);
    --border: rgba(255, 255, 255, 0.1);
    --transition: all 0.3s ease-in-out;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: 'Inter', sans-serif;
    line-height: 1.6;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    background-image: 
        radial-gradient(at 0% 0%, rgba(14, 165, 233, 0.1) 0px, transparent 50%),
        radial-gradient(at 100% 0%, rgba(15, 23, 42, 0.8) 0px, transparent 50%);
}

h1, h2, h3, h4 {
    font-family: 'Montserrat', sans-serif;
    font-weight: 700;
}

/* Header Glassmorphism */
header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.2rem 8%;
    position: fixed;
    width: 100%;
    top: 0;
    background: rgba(11, 17, 32, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    z-index: 1000;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
}

.logo {
    font-family: 'Montserrat', sans-serif;
    font-size: clamp(1.3rem, 2vw, 1.5rem);
    font-weight: 800;
    letter-spacing: -1px;
    color: var(--text-main);
    text-decoration: none;
}

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

nav { 
    display: flex; 
    align-items: center; 
    gap: clamp(15px, 3vw, 30px); 
}

nav a.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-weight: 500;
    font-size: 0.95rem;
    transition: var(--transition);
}

nav a.nav-link:hover, nav a.nav-link.active {
    color: var(--text-main);
}

/* Botones */
.btn-main, .btn-secondary {
    padding: 12px 28px;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    display: inline-flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
    text-align: center;
}

.btn-main {
    background: linear-gradient(135deg, var(--accent) 0%, #2563EB 100%);
    color: white;
    border: 1px solid rgba(255,255,255,0.1);
}

.btn-main:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 25px -5px var(--accent-glow);
    border: 1px solid rgba(255,255,255,0.3);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-main);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

/* Secciones */
.hero {
    padding: 160px 8% 100px;
    text-align: center;
    min-height: 80vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.hero h1 {
    font-size: clamp(2.2rem, 6vw, 4.5rem);
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -1px;
    background: linear-gradient(to bottom right, #FFFFFF 30%, #94A3B8 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    max-width: 900px;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.2rem);
    color: var(--text-muted);
    max-width: 700px;
    margin: 0 auto 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 15px;
    justify-content: center;
    margin-top: 10px;
    width: 100%;
    flex-wrap: wrap;
}

/* Grid de Tarjetas */
.features {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); 
    gap: 30px;
    padding: 60px 8%;
    max-width: 1400px;
    margin: 0 auto;
}

.card {
    background: rgba(30, 41, 59, 0.4);
    backdrop-filter: blur(10px);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 4px;
    background: linear-gradient(90deg, var(--accent), transparent);
    opacity: 0;
    transition: var(--transition);
}

.card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-5px);
    border-color: rgba(14, 165, 233, 0.3);
    box-shadow: 0 20px 40px -10px rgba(0,0,0,0.5);
}

.card:hover::before { opacity: 1; }

.card i {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 20px;
    display: inline-block;
}

.card h3 {
    margin-bottom: 1rem;
    font-size: 1.3rem;
    color: var(--text-main);
}

.card p {
    color: var(--text-muted);
    font-size: 1rem;
}

/* Formularios Profesionales */
.form-container {
    background: rgba(30, 41, 59, 0.6);
    padding: 40px;
    border-radius: 24px;
    border: 1px solid var(--border);
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
}

.form-group {
    margin-bottom: 20px;
    text-align: left;
}

label {
    display: block;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

input, select {
    width: 100%;
    padding: 14px 16px;
    background: rgba(15, 23, 42, 0.8);
    border: 1px solid var(--border);
    border-radius: 10px;
    color: white;
    font-family: inherit;
    font-size: 1rem;
    transition: var(--transition);
}

input:focus, select:focus {
    border-color: var(--accent);
    outline: none;
    box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

/* Pricing Toggle */
.pricing-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

.price-card {
    border: 2px solid var(--border);
    border-radius: 16px;
    padding: 20px;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
}

.price-card.active {
    border-color: var(--accent);
    background: rgba(14, 165, 233, 0.05);
}

/* Footer */
footer {
    text-align: center;
    padding: 40px 8%;
    color: var(--text-muted);
    border-top: 1px solid var(--border);
    margin-top: 40px;
    font-size: 0.9rem;
}


/* ========================================================= */
/* 📱 RESPONSIVE DESIGN: ADAPTACIÓN A MÓVILES Y TABLETS 📱   */
/* ========================================================= */

@media (max-width: 768px) {
    /* Transformar el header en relativo evita que tape el contenido al expandirse */
    header { 
        flex-direction: column; 
        padding: 1rem 5%; 
        gap: 15px;
        position: relative; 
    }
    
    nav { 
        width: 100%;
        justify-content: center;
        flex-wrap: wrap; 
        gap: 10px;
    }

    nav a.nav-link { font-size: 0.9rem; }

    /* Reducir padding al no tener header fijo */
    .hero { 
        padding: 60px 5%; 
        min-height: auto;
    }
    
    .hero p { padding: 0; }

    /* Botones de lado a lado para tocar fácil con el dedo */
    .hero > div[style*="display: flex"], .hero-buttons {
        flex-direction: column;
        width: 100%;
        gap: 12px !important;
    }

    .btn-main, .btn-secondary {
        width: 100%; 
    }

    /* Ajustes en las tarjetas */
    .features { 
        padding: 40px 5%; 
        gap: 20px;
    }

    .card { padding: 30px 20px; }

    /* Apilar tarjetas de precios en móvil */
    .pricing-grid { grid-template-columns: 1fr; }
    
    .form-container { padding: 25px 20px; }

    /* Forzar centrado en móviles sobreescribiendo los inline-styles del HTML */
    .hero p[style*="text-align: left"] {
        text-align: center !important;
    }
    
    .hero div[style*="text-align: left"] {
        text-align: center !important;
        align-items: center !important;
    }
}

/* Pantallas súper pequeñas (Ej: iPhone SE, Galaxy Fold cerrado) */
@media (max-width: 380px) {
    nav { flex-direction: column; gap: 15px; }
    .btn-main, .btn-secondary { padding: 10px 15px; font-size: 0.9rem; }
    .card i { font-size: 2rem; }
}