@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@300;400;600;700&family=Roboto+Mono:wght@400;700&display=swap');

:root {
    /* Colores */
    --primary-color: #0000FF; /* Azul institucional */
    --secondary-color: #808080; /* Gris */
    --background-color: #F0F2F5; /* Fondo general */
    --footer-bg-color: #1A202C; /* Fondo del pie de página */
    --button-color: #0000FF; /* Color de botón */
    --text-color-dark: #1A202C;
    --text-color-light: #F0F2F5;
    --section-bg-1: #FFFFFF;
    --section-bg-2: #F8F9FA;
    --section-bg-3: #E2E8F0;
    --accent-color: #FFD700; /* Oro para acentos científicos */

    /* Tipografía */
    --font-heading: 'Montserrat', sans-serif;
    --font-body: 'Montserrat', sans-serif;
    --font-mono: 'Roboto Mono', monospace;

    /* Espaciado */
    --spacing-xs: 0.5rem;
    --spacing-sm: 1rem;
    --spacing-md: 1.5rem;
    --spacing-lg: 2.5rem;
    --spacing-xl: 4rem;

    /* Bordes y sombras */
    --border-radius-sm: 0.25rem;
    --border-radius-md: 0.5rem;
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1), 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1), 0 4px 6px rgba(0, 0, 0, 0.05);
    --shadow-interactive: 0 8px 15px rgba(0, 0, 0, 0.15);

    /* Transiciones */
    --transition-speed: 0.3s;
    --transition-ease: ease-in-out;
}

/* Base styles */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    color: var(--text-color-dark);
    line-height: 1.7;
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    overflow-x: hidden; /* Previene desbordamiento horizontal */
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 700;
    line-height: 1.25;
    color: var(--text-color-dark);
    margin-top: var(--spacing-lg);
    margin-bottom: var(--spacing-md);
    letter-spacing: -0.02em;
}

h1 {
    font-size: 3.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: var(--spacing-lg);
}

h2 {
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: var(--spacing-lg);
}

h3 {
    font-size: 1.8rem;
    font-weight: 600;
    margin-bottom: var(--spacing-md);
}

p {
    margin-bottom: var(--spacing-md);
    font-size: 1.1rem;
    color: var(--text-color-dark);
}

a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-speed) var(--transition-ease), border-bottom var(--transition-speed) var(--transition-ease);
}

a:hover {
    color: var(--accent-color);
    border-bottom: 1px solid var(--accent-color);
}

strong {
    font-weight: 600;
}

ul, ol {
    margin-left: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

li {
    margin-bottom: var(--spacing-xs);
    font-size: 1.05rem;
}

/* Layout y Espaciado */
.container {
    max-width: 1280px;
    margin-left: auto;
    margin-right: auto;
    padding-left: var(--spacing-md);
    padding-right: var(--spacing-md);
}

section {
    padding-top: var(--spacing-xl);
    padding-bottom: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    transition: background-color var(--transition-speed) var(--transition-ease);
}

.section-bg-1 {
    background-color: var(--section-bg-1);
}

.section-bg-2 {
    background-color: var(--section-bg-2);
}

.section-bg-3 {
    background-color: var(--section-bg-3);
    box-shadow: inset 0 5px 15px rgba(0,0,0,0.05), inset 0 -5px 15px rgba(0,0,0,0.05);
}

/* Botones */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--border-radius-md);
    font-family: var(--font-heading);
    font-weight: 600;
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    border: none;
    text-decoration: none;
    transition: all var(--transition-speed) var(--transition-ease);
    box-shadow: var(--shadow-sm);
    letter-spacing: 0.02em;
}

.btn-primary {
    background-color: var(--button-color);
    color: var(--text-color-light);
    border: 2px solid var(--button-color);
}

.btn-primary:hover {
    background-color: transparent;
    color: var(--button-color);
    box-shadow: var(--shadow-interactive);
    transform: translateY(-2px);
}

.btn-secondary {
    background-color: transparent;
    color: var(--primary-color);
    border: 2px solid var(--primary-color);
    box-shadow: none;
}

.btn-secondary:hover {
    background-color: var(--primary-color);
    color: var(--text-color-light);
    box-shadow: var(--shadow-interactive);
    transform: translateY(-2px);
}

/* Tarjetas */
.card {
    background-color: var(--section-bg-1);
    border-radius: var(--border-radius-md);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
}

/* Formularios */
.form-group {
    margin-bottom: var(--spacing-md);
}

.form-label {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-weight: 600;
    color: var(--text-color-dark);
}

.form-input,
.form-textarea,
.form-select {
    width: 100%;
    padding: var(--spacing-sm);
    border: 1px solid var(--secondary-color);
    border-radius: var(--border-radius-sm);
    font-family: var(--font-body);
    font-size: 1rem;
    color: var(--text-color-dark);
    background-color: var(--section-bg-2);
    transition: border-color var(--transition-speed) var(--transition-ease), box-shadow var(--transition-speed) var(--transition-ease);
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 0, 255, 0.1);
    background-color: var(--section-bg-1);
}

.form-textarea {
    resize: vertical;
    min-height: 120px;
}

/* Footer */
.footer {
    background-color: var(--footer-bg-color);
    color: var(--text-color-light);
    padding: var(--spacing-xl) 0;
    text-align: center;
    font-size: 0.95rem;
    line-height: 1.6;
}

.footer a {
    color: var(--primary-color);
    text-decoration: underline;
}

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

.footer-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-lg);
    align-items: center;
    justify-content: space-between;
}

/* Iconos (Placeholder para integración con una librería de iconos) */
.icon {
    display: inline-block;
    width: 1.2em;
    height: 1.2em;
    stroke-width: 0;
    stroke: currentColor;
    fill: currentColor;
    vertical-align: middle;
    margin-right: 0.5em;
}

/* Efectos visuales */
.glassmorphism {
    background: rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: var(--border-radius-md);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    padding: var(--spacing-lg);
}

/* Animaciones */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in-on-scroll {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s var(--transition-ease), transform 0.6s var(--transition-ease);
}

.fade-in-on-scroll.is-visible {
    opacity: 1;
    transform: translateY(0);
}

/* Media Queries para responsividad */
@media (max-width: 768px) {
    h1 {
        font-size: 2.8rem;
    }

    h2 {
        font-size: 2rem;
    }

    h3 {
        font-size: 1.5rem;
    }

    p {
        font-size: 1rem;
    }

    .btn {
        padding: var(--spacing-sm) var(--spacing-md);
        font-size: 1rem;
    }

    section {
        padding-top: var(--spacing-lg);
        padding-bottom: var(--spacing-lg);
    }

    .footer-content {
        flex-direction: column;
        gap: var(--spacing-md);
    }
}

@media (max-width: 480px) {
    h1 {
        font-size: 2.2rem;
    }

    h2 {
        font-size: 1.7rem;
    }

    .container {
        padding-left: var(--spacing-sm);
        padding-right: var(--spacing-sm);
    }
}


/* Cookie Banner Additional Styles for Tailwind */
.cookie-banner-hover-effect:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

@media (prefers-reduced-motion: reduce) {
    .cookie-banner-hover-effect:hover {
        transform: none;
    }
}