:root {
    --bg-dark: #000000;
    --bg-light: #101010;
    --text-primary: #f5f5f7;
    --text-secondary: #a7a7a7;
    /* --- Nuevos colores de acento --- */
    --accent-orange: #F19300;
    --accent-yellow: #F8E000;
    --border-color: rgba(255, 255, 255, 0.1);
    --font-main: 'Poppins', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

body.landing-page {
    background-color: var(--bg-dark);
    color: var(--text-primary);
    font-family: var(--font-main);
    margin: 0;
    padding: 0;
    overflow-x: hidden;
}

/* --- BARRA DE NAVEGACIÓN --- */
.landing-navbar {
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    padding: 1rem 5%;
    position: fixed;
    top: 0; left: 0;
    width: 100%;
    z-index: 1000;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
}
.landing-navbar .logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
    text-shadow: 0 0 8px var(--accent-orange);
}
.landing-navbar .nav-links {
    display: flex;
    align-items: center;
}
.landing-navbar .nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin-left: 25px;
    font-weight: 500;
    transition: color 0.3s ease, text-shadow 0.3s ease;
}
.landing-navbar .nav-links a:hover {
    color: var(--text-primary);
    text-shadow: 0 0 8px var(--accent-yellow);
}
.auth-buttons-nav {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-left: 25px;
}
.auth-buttons-nav .login-link {
    color: var(--text-secondary);
    font-weight: 500;
}
.auth-buttons-nav .login-link:hover {
    color: var(--text-primary);
}

/* --- SECCIÓN HERO --- */
.landing-hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px;
    position: relative;
    overflow: hidden;
    background: radial-gradient(circle at 50% 50%, rgba(241, 147, 0, 0.1), transparent 70%); /* Naranja */
}
.landing-hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(ellipse at bottom, rgba(248, 224, 0, 0.15), transparent 60%); /* Amarillo */
    pointer-events: none;
}
.hero-content h1 {
    font-size: clamp(2.5rem, 5vw, 4.5rem);
    font-weight: 700;
    margin-bottom: 1rem;
    line-height: 1.1;
    background: -webkit-linear-gradient(45deg, var(--accent-orange), var(--accent-yellow), var(--accent-orange));
    background-size: 200% 200%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    animation: gradient-animation 4s ease infinite;
}
@keyframes gradient-animation {
    0% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
    100% { background-position: 0% 50%; }
}
.hero-content .subtitle {
    font-size: clamp(1.1rem, 2vw, 1.3rem);
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.7;
}
.hero-buttons {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}

/* --- BOTONES --- */
.cta-button, .secondary-cta-button {
    display: inline-block;
    padding: 14px 32px;
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    border: 2px solid transparent;
}
.cta-button {
    color: var(--bg-dark); /* Texto oscuro para mejor contraste sobre amarillo/naranja */
    background: linear-gradient(90deg, var(--accent-yellow), var(--accent-orange));
    box-shadow: 0 0 15px rgba(248, 224, 0, 0.3), 0 0 15px rgba(241, 147, 0, 0.3);
}
.cta-button:hover {
    transform: translateY(-3px) scale(1.05);
    box-shadow: 0 0 25px rgba(248, 224, 0, 0.5), 0 0 25px rgba(241, 147, 0, 0.5);
}
.secondary-cta-button {
    color: var(--accent-orange);
    background: transparent;
    border-color: var(--accent-orange);
    box-shadow: 0 0 15px rgba(241, 147, 0, 0.2);
}
.secondary-cta-button:hover {
    background: rgba(241, 147, 0, 0.1);
    color: var(--text-primary);
    transform: translateY(-3px);
    box-shadow: 0 0 20px rgba(241, 147, 0, 0.4);
}

/* --- SECCIONES GENERALES --- */
.landing-section {
    padding: 120px 8%;
    text-align: center;
}
.landing-section.dark { background-color: var(--bg-dark); }
.landing-section.light { background-color: var(--bg-light); }
.landing-section h2 {
    font-size: clamp(2.2rem, 4vw, 3rem);
    font-weight: 600;
    margin-bottom: 1.5rem;
}
.landing-section .section-intro {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 5rem;
    max-width: 800px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.8;
}

/* --- GRID DE CARACTERÍSTICAS Y PROCESO --- */
.features-grid, .process-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2.5rem;
    text-align: left;
}
.feature-item, .process-step {
    background-color: transparent;
    padding: 2.5rem;
    border-radius: 15px;
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: transform 0.3s ease, border-color 0.3s ease;
}
.feature-item:hover, .process-step:hover {
    transform: translateY(-10px);
    border-color: var(--accent-orange);
}
.feature-item::before, .process-step::before {
    content: '';
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background: radial-gradient(circle at 0% 0%, var(--accent-yellow), transparent 40%);
    opacity: 0;
    transition: opacity 0.4s ease;
}
.feature-item:hover::before, .process-step:hover::before {
    opacity: 0.1;
}
.feature-item i, .process-step .step-number {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    display: block;
    background: -webkit-linear-gradient(45deg, var(--accent-orange), var(--accent-yellow));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}
.process-step .step-number {
    font-weight: 700;
    font-size: 3rem;
}
.feature-item h3, .process-step h3 {
    font-size: 1.6rem;
    font-weight: 600;
    margin-bottom: 1rem;
    color: var(--text-primary);
}
.feature-item p, .process-step p {
    color: var(--text-secondary);
    line-height: 1.8;
}

/* --- FOOTER --- */
.landing-footer {
    background-color: var(--bg-light);
    padding: 60px 5%;
    text-align: center;
    border-top: 1px solid var(--border-color);
}
.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 25px;
}
.footer-logo {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--text-primary);
    text-shadow: 0 0 5px var(--accent-orange);
}
.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    margin: 0 15px;
    transition: color 0.3s ease;
}
.footer-links a:hover {
    color: var(--accent-orange);
}
.footer-auth-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    align-items: center;
}
.footer-auth-buttons .cta-button, .footer-auth-buttons .secondary-cta-button {
    padding: 10px 24px;
    font-size: 1rem;
}
.google-cta-button {
    background: #4285F4;
    box-shadow: 0 0 15px rgba(66, 133, 244, 0.4);
}
.google-cta-button:hover {
    box-shadow: 0 0 25px rgba(66, 133, 244, 0.6);
}
.copyright {
    margin-top: 20px;
    font-size: 0.9rem;
    color: #666;
}

/* Responsive */
@media (max-width: 768px) {
    .landing-navbar {
        padding: 1rem 5%;
    }
    .landing-navbar .nav-links {
        display: none; /* Simplificamos ocultando los links en móvil */
    }
}