/* ==========================================================================
   1. VARIABLES Y REGLAS GENERALES (ILUMINACIÓN FÍSICA)
   ========================================================================== */
:root {
    --primary-color: #1e5e2f;      /* Verde bosque profundo y realista */
    --primary-hover: #144220;      
    --accent-color: #66bb6a;       /* Brillo de clorofila natural */
    --bg-light: #f3f8f5;           
    --text-dark: #1c241e;          /* Tono orgánico profundo (no negro puro) */
    --text-muted: #506254;         
    --white: #ffffff;
    --border-color: rgba(46, 125, 50, 0.08);
    --max-width: 1100px;

    /* REGLAS FÍSICAS DE SOMBRAS E INTERACCIÓN REALISTA */
    --surface-glass: rgba(255, 255, 255, 0.75);
    --border-glass: rgba(255, 255, 255, 0.6);
    /* Sombra multi-capa: emula la dispersión de luz real en la física */
    --real-shadow-sm: 0 2px 4px rgba(28, 36, 30, 0.03), 0 4px 12px rgba(28, 36, 30, 0.04);
    --real-shadow-md: 0 4px 10px rgba(28, 36, 30, 0.04), 0 12px 30px rgba(28, 36, 30, 0.06);
    --real-shadow-lg: 0 15px 35px rgba(12, 42, 20, 0.08), 0 30px 60px rgba(0, 0, 0, 0.04);
    --real-inset: inset 0 1px 1px rgba(255, 255, 255, 0.8), inset 0 -1px 2px rgba(0, 0, 0, 0.04);
    --transition-smooth: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    line-height: 1.6;
    color: var(--text-dark);
    background-color: var(--bg-light);
    background-image: radial-gradient(circle at top right, rgba(102,187,106,0.05) 0%, transparent 40%);
    -webkit-font-smoothing: antialiased;
}

/* ==========================================================================
   2. ENCABEZADO Y NAVEGACIÓN (Cristal Esmerilado Biselado)
   ========================================================================== */
.header {
    background-color: rgba(30, 94, 47, 0.85); /* Base translúcida */
    backdrop-filter: blur(20px) saturate(140%);
    -webkit-backdrop-filter: blur(20px) saturate(140%);
    /* El borde simula el reflejo de luz en el borde afilado del menú */
    border-bottom: 1px solid rgba(255, 255, 255, 0.15);
    color: var(--white);
    padding: 1.25rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: var(--real-shadow-md), inset 0 1px 0 rgba(255,255,255,0.1);
}

.logo {
    font-size: 1.4rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.15);
}

.nav a {
    color: rgba(255, 255, 255, 0.85);
    text-decoration: none;
    margin-left: 1.75rem;
    font-weight: 500;
    font-size: 0.95rem;
    padding: 0.4rem 0.8rem;
    border-radius: 6px;
    transition: var(--transition-smooth);
}

.nav a:hover {
    color: var(--white);
    background-color: rgba(255, 255, 255, 0.1);
    box-shadow: inset 0 1px 1px rgba(255,255,255,0.1);
}

/* ==========================================================================
   3. SECCIÓN HERO (Volumen y Profundidad Atmosférica)
   ========================================================================== */
.hero {
    background: linear-gradient(180deg, #e4f4ec 0%, #f3f8f5 100%);
    padding: 6rem 1.5rem;
    text-align: center;
    position: relative;
    border-bottom: 1px solid rgba(46, 125, 50, 0.08);
}

/* Reflejo de luz ambiental circular de fondo */
.hero::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: 800px;
    height: 100%;
    background: radial-gradient(circle, rgba(102,187,106,0.15) 0%, transparent 75%);
    pointer-events: none;
}

.hero-content {
    max-width: 800px;
    margin: 0 auto;
    position: relative;
    z-index: 2;
}

.hero h1 {
    font-size: 2.8rem;
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    letter-spacing: -0.03em;
    font-weight: 800;
    text-shadow: 0 1px 2px rgba(0,0,0,0.02);
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

/* Botón con relieve 3D realista (Pulsable físicamente) */
.btn {
    display: inline-block;
    background: linear-gradient(180deg, #388e3c 0%, #2e7d32 100%);
    color: var(--white);
    padding: 0.85rem 2.25rem;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    border: 1px solid #256329;
    /* Inset crea el reflejo de luz superior en el relieve del botón */
    box-shadow: var(--real-shadow-sm), inset 0 1px 0 rgba(255, 255, 255, 0.25);
    transform: translateY(0);
    transition: var(--transition-smooth);
}

.btn:hover {
    background: linear-gradient(180deg, #2e7d32 0%, #1b5e20 100%);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(46, 125, 50, 0.25), inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn:active {
    transform: translateY(1px);
    box-shadow: 0 2px 5px rgba(46, 125, 50, 0.2), inset 0 1px 3px rgba(0,0,0,0.2);
}

/* ==========================================================================
   4. CONTENEDORES Y TARJETAS (Efecto Porcelana / Cristal Sólido)
   ========================================================================== */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 4rem 1.5rem;
}

.section {
    margin-bottom: 4rem;
}

.section h2 {
    font-size: 2rem;
    color: var(--primary-color);
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
    font-weight: 700;
    border-bottom: none;
    position: relative;
    padding-bottom: 0.5rem;
}

/* Reemplazo de línea plana por relieve sutil */
.section h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 50px;
    height: 3px;
    background-color: var(--accent-color);
    border-radius: 2px;
    box-shadow: 0 1px 2px rgba(46, 125, 50, 0.2);
}

.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

/* Tarjeta hiperrealista: imita un bloque físico de acrílico/porcelana pulida */
.card {
    background: linear-gradient(145deg, var(--white) 0%, #fafdfb 100%);
    border: 1px solid var(--border-glass);
    border-radius: 14px;
    padding: 2.25rem 1.75rem;
    /* La combinación de real-shadow e inset le da peso y volumen al objeto */
    box-shadow: var(--real-shadow-sm), var(--real-inset);
    transform: scale(1) translateY(0);
    transition: var(--transition-smooth);
}

.card:hover {
    transform: scale(1.02) translateY(-4px);
    box-shadow: var(--real-shadow-lg), var(--real-inset);
    border-color: rgba(46, 125, 50, 0.15);
}

.card h3 {
    font-size: 1.3rem;
    color: var(--primary-color);
    margin-bottom: 0.85rem;
    font-weight: 700;
}

.card p {
    color: var(--text-muted);
    font-size: 0.975rem;
}

/* Lista de beneficios adaptada con viñetas físicas tridimensionales */
.benefits-list {
    list-style-type: none; /* Quitamos los cuadrados planos de la lista original */
    padding-left: 0;
    display: grid;
    gap: 1rem;
}

.benefits-list li {
    background-color: var(--white);
    padding: 1.15rem 1.5rem;
    border-radius: 10px;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 6px rgba(0, 0, 0, 0.015), var(--real-inset);
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0;
}

/* Marcador esférico realista con brillo */
.benefits-list li::before {
    content: "";
    min-width: 8px;
    height: 8px;
    background: radial-gradient(circle at 30% 30%, var(--accent-color) 0%, var(--primary-color) 100%);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 2px 4px rgba(46, 125, 50, 0.4);
}

/* ==========================================================================
   5. BLOQUE DE TRANSPARENCIA Y AVISO LEGAL
   ========================================================================== */
.disclaimer-box {
    background: linear-gradient(145deg, #f8faf9 0%, #f1f6f3 100%);
    border-left: 4px solid var(--primary-color);
    padding: 1.5rem;
    border-radius: 4px 12px 12px 4px;
    margin-top: 3.5rem;
    font-size: 0.92rem;
    color: var(--text-muted);
    box-shadow: inset 0 1px 2px rgba(0,0,0,0.02), 0 2px 8px rgba(0,0,0,0.01);
    border-top: 1px solid rgba(0,0,0,0.02);
    border-right: 1px solid rgba(0,0,0,0.02);
    border-bottom: 1px solid rgba(0,0,0,0.02);
}

.legal-page {
    background: var(--white);
    padding: 3rem 2rem;
    border-radius: 16px;
    box-shadow: var(--real-shadow-md), var(--real-inset);
    border: 1px solid var(--border-glass);
}

.legal-page section {
    margin-bottom: 2.5rem;
}

.legal-page h1 {
    font-size: 2.2rem;
    color: var(--primary-color);
    letter-spacing: -0.02em;
    margin-bottom: 1rem;
}

.legal-page h2 {
    font-size: 1.4rem;
    color: var(--primary-hover);
    margin-bottom: 0.75rem;
}

/* ==========================================================================
   6. PIE DE PÁGINA (FOOTER - Profundidad Absoluta)
   ========================================================================== */
.footer {
    background: linear-gradient(180deg, #1f2421 0%, #121513 100%);
    color: #a3b2a7;
    padding: 4rem 2rem 2.5rem 2rem;
    font-size: 0.9rem;
    margin-top: 6rem;
    border-top: 1px solid rgba(255,255,255,0.03);
    box-shadow: inset 0 1px 0 rgba(255,255,255,0.05);
}

.footer-info {
    max-width: var(--max-width);
    margin: 0 auto 2.5rem auto;
    text-align: center;
    line-height: 1.8;
}

.footer-info p strong {
    color: var(--white);
    font-size: 1.05rem;
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

.footer-links {
    max-width: var(--max-width);
    margin: 0 auto;
    text-align: center;
    border-top: 1px solid rgba(255, 255, 255, 0.06);