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

:root {
    --primary-color: #0066B3;        
    --primary-light: #3385C7;  
    --primary-dark: #003D73;   
    --accent: #FF6B00;         
    --light: #F8FAFC;         
    --dark: #1A202C;           
    --gray: #4A5568;          
    --gray-light: #E2E8F0;    
    --white: #FFFFFF;
    --black: #0A0C10;         
    --accent-color: #14427a;
    --shadow: 0 10px 30px rgba(0, 102, 179, 0.12);
    --shadow-hover: 0 25px 50px rgba(0, 102, 179, 0.2);
    --shadow-glow: 0 0 20px rgba(0, 102, 179, 0.3);
    --transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.1);
    --transition-smooth: all 0.6s cubic-bezier(0.34, 1.56, 0.64, 1);
    --radius: 8px;
    --radius-lg: 20px;
}

body {
    font-family: 'Inter', sans-serif;
    color: var(--gray);
    line-height: 1.6;
    overflow-x: hidden;
    background: var(--white);
}

.container {
    width: 90%;
    max-width: 1400px;
    margin: 0 auto;
}

/* CTA Button */
.cta-button {
    background: var(--dark);
    color: var(--white);
    padding: 12px 28px;
    border-radius: var(--radius);
    text-decoration: none;
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    border: none;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    position: relative;
    overflow: hidden;
    margin-left: 20px;
}

.cta-button::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
    transition: left 0.7s;
}

.cta-button:hover::before {
    left: 100%;
}

.cta-button:hover {
    background: var(--accent);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0, 168, 89, 0.3);
}

/* ===== HERO PARALLAX ===== */
.hero-parallax {
    position: relative;
    overflow: hidden;
    margin-top: 90px;
}


.hero-parallax-container {
    position: relative;
    min-height: 500px;
}

.hero-parallax-image {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    z-index: 0;
}

.hero-parallax-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.25);
    z-index: 1;
}

.hero-parallax-container > .container {
    position: relative;
    z-index: 2;
    min-height: 500px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 80px 0;
}

.hero-parallax-content {
    max-width: 780px;
    width: 100%;
    text-align: center;
    background: rgba(0, 0, 0, 0.4);
    backdrop-filter: blur(3px);
    -webkit-backdrop-filter: blur(3px);
    border-radius: 20px;
    padding: 55px 60px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.hero-parallax-badge {
    display: inline-block;
    background: rgba(255,255,255,0.15);
    color: #fff;
    padding: 6px 20px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 20px;
    text-transform: uppercase;
    border: 1px solid rgba(255,255,255,0.25);
}

.hero-parallax-title {
    font-size: 52px;
    font-weight: 700;
    color: #fff;
    line-height: 1.2;
    margin-bottom: 20px;
}

.text-highlight { 
    color: #bad6ff; 
}

.hero-parallax-description {
    font-size: 16px;
    color: rgba(255,255,255,0.9);
    line-height: 1.75;
    font-weight: 300;
}

/* ===== SECTION HEADERS ===== */
.section-header { 
    text-align: center; 
    margin-bottom: 60px; 
}

.section-badge {
    display: inline-block;
    background: rgba(26,86,157,0.1);
    color: var(--primary-color);
    padding: 6px 18px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 2px;
    margin-bottom: 15px;
    text-transform: uppercase;
}

.section-title {
    font-size: 40px;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 15px;
    line-height: 1.2;
}

.section-subtitle {
    font-size: 16px;
    color: var(--gray);
    max-width: 650px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== INTRO / COMPROMISO ===== */
.intro-section {
    padding: 100px 0;
    background: var(--white);
}

.intro-text {
    max-width: 900px;
    margin: 0 auto;
    background: var(--light);
    padding: 50px 60px;
    border-radius: var(--radius);
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border-left: 4px solid var(--primary-color);
}

.intro-text p {
    font-size: 17px;
    line-height: 1.9;
    color: var(--gray);
    text-align: justify;
}

/* ===== PRINCIPIOS ===== */
.principios-section {
    padding: 100px 0;
    background: var(--light);
}

.principios-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
}

.principio-card {
    background: var(--white);
    padding: 40px 30px;
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0,0,0,0.06);
    border: 2px solid transparent;
    transition: all 0.3s ease;
}

.principio-card:hover {
    border-color: var(--primary-color);
    transform: translateY(-6px);
    box-shadow: 0 12px 30px rgba(26,86,157,0.15);
}

.principio-icon {
    width: 70px;
    height: 70px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    color: var(--white);
    font-size: 26px;
}

.principio-card h3 {
    font-size: 20px;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 12px;
}

.principio-card p {
    font-size: 14px;
    color: var(--gray);
    line-height: 1.7;
}

/* ===== PDF SECTION ===== */
.pdf-section {
    padding: 100px 0;
    background: var(--white);
}

.pdf-card {
    background: var(--light);
    border-radius: 16px;
    padding: 50px;
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 40px;
    box-shadow: 0 10px 40px rgba(0,0,0,0.08);
    transition: all 0.4s ease;
    border: 2px solid transparent;
}

.pdf-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 50px rgba(26,86,157,0.15);
    border-color: var(--primary-color);
}

.pdf-icon {
    flex-shrink: 0;
    width: 100px;
    height: 100px;
    background: linear-gradient(135deg, var(--primary-color), var(--primary-dark));
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    box-shadow: 0 8px 20px rgba(26,86,157,0.3);
}

.pdf-info h3 {
    font-size: 26px;
    color: var(--black);
    margin-bottom: 12px;
    font-weight: 600;
}

.pdf-info p {
    font-size: 15px;
    color: var(--gray);
    line-height: 1.7;
    margin-bottom: 20px;
}

.pdf-details {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.pdf-details span {
    font-size: 13px;
    color: var(--gray);
    background: var(--white);
    padding: 8px 16px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.pdf-details span i { 
    color: var(--primary-color); 
}

.btn-download {
    flex-shrink: 0;
    background: var(--primary-color);
    color: var(--white);
    padding: 18px 36px;
    border-radius: 10px;
    text-decoration: none;
    font-size: 15px;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 10px;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(26,86,157,0.3);
    white-space: nowrap;
}

.btn-download:hover {
    background: var(--accent-color);
    transform: scale(1.05);
    box-shadow: 0 6px 25px rgba(26,86,157,0.4);
}

/* ===== CTA ===== */
.acerca-cta-section {
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--primary-dark) 100%);
    padding: 100px 0;
    text-align: center;
}

.cta-content h2 {
    font-size: 46px;
    font-weight: 700;
    color: var(--white);
    margin-bottom: 15px;
    line-height: 1.3;
}

.cta-content p {
    font-size: 18px;
    color: rgba(255,255,255,0.9);
    margin-bottom: 35px;
}

.btn-cta {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    background: var(--white);
    color: var(--primary);
    padding: 16px 40px;
    border-radius: var(--radius);
    text-decoration: none;
    font-size: 16px;
    font-weight: 600;
    transition: all 0.3s;
}

.btn-cta:hover {
    background: rgba(255,255,255,0.9);
    transform: translateY(-3px);
    box-shadow: 0 10px 25px rgba(0,0,0,0.2);
}

/* ===== FOOTER ===== */
.footer {
    background: var(--white);
    padding: 50px 0;
    border-top: 1px solid var(--gray-light);
}

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

.footer-left p { 
    font-size: 13px; 
    color: var(--black); 
    margin-bottom: 8px; 
}

.footer-left a { 
    color: var(--black); 
    text-decoration: none; 
    transition: color 0.3s; 
}

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

.copyright { 
    margin-top: 15px; 
}

.social-icons { 
    display: flex; 
    gap: 20px; 
}

.social-icons a {
    color: var(--dark);
    transition: all 0.3s;
    display: flex;
    align-items: center;
    justify-content: center;
}

.social-icons a:hover { 
    color: var(--primary); 
    transform: translateY(-3px); 
}

/* ===== RESPONSIVE  ===== */
@media (max-width: 1200px) {
    .hero-parallax-title { 
        font-size: 42px; 
    }
    .principios-grid { 
        grid-template-columns: repeat(2, 1fr); 
    }
    .intro-text { 
        padding: 40px 45px; 
    }
}

@media (max-width: 992px) {
    .pdf-card { 
        grid-template-columns: 1fr; 
        text-align: center; 
        justify-items: center; 
        padding: 35px 25px; 
        gap: 25px; 
    }
    .pdf-details { 
        justify-content: center; 
    }
    .btn-download { 
        width: 100%; 
        justify-content: center; 
    }
}

@media (max-width: 768px) {
    .hero-parallax { 
        margin-top: 70px; 
    }
    
    .hero-parallax-title { 
        font-size: 34px; 
    }
    
    .hero-parallax-description { 
        font-size: 15px; 
    }
    
    .hero-parallax-container > .container { 
        padding: 60px 0; 
        min-height: 400px; 
    }

    .hero-parallax-content {
        padding: 35px 25px;
    }

    .intro-section { 
        padding: 70px 0; 
    }
    
    .intro-text { 
        padding: 30px 25px; 
    }
    
    .intro-text p { 
        font-size: 15px; 
    }

    .principios-section { 
        padding: 70px 0; 
    }
    
    .principios-grid { 
        grid-template-columns: 1fr; 
        gap: 20px; 
    }

    .section-title { 
        font-size: 30px; 
    }

    .pdf-section { 
        padding: 70px 0; 
    }
    
    .pdf-card { 
        padding: 30px 20px; 
    }

    .acerca-cta-section { 
        padding: 70px 0; 
    }
    
    .cta-content h2 { 
        font-size: 32px; 
    }

    .footer { 
        padding: 30px 0; 
    }
    
    .footer-content { 
        flex-direction: column; 
        gap: 20px; 
        text-align: center; 
    }
    
    .social-icons { 
        justify-content: center; 
    }
}

@media (max-width: 480px) {
    .hero-parallax-title { 
        font-size: 28px; 
    }
    
    .section-title { 
        font-size: 26px; 
    }
    
    .intro-text { 
        padding: 25px 20px; 
    }
    
    .intro-text p { 
        font-size: 14px; 
        text-align: left; 
    }
    
    .cta-content h2 { 
        font-size: 26px; 
    }
    
    .pdf-icon { 
        width: 80px; 
        height: 80px; 
    }
    
    .pdf-icon svg { 
        width: 40px; 
        height: 40px; 
    }
    
    .pdf-info h3 { 
        font-size: 20px; 
    }
}

/* Utilidades */
* { 
    -webkit-font-smoothing: antialiased; 
    -moz-osx-font-smoothing: grayscale; 
}

img { 
    max-width: 100%; 
    height: auto; 
}

body.keyboard-navigation *:focus { 
    outline: 2px solid var(--primary); 
    outline-offset: 2px; 
}