:root {
    /* Color Palette */
    --color-dominant: #1a5fa6;    /* Azul humAIn */
    --color-secondary-red: #e63946;  /* Rojo */
    --color-secondary-orange: #ff6b35; /* Naranja */
    --color-neutral-black: #1a1a1a;
    --color-neutral-white: #ffffff;
    --color-neutral-gray: #f5f5f5;

    /* Semantic Mappings */
    --bg-navbar: var(--color-neutral-white);
    --text-nav-links: var(--color-dominant);
    --text-nav-active: var(--color-secondary-red);
    --btn-primary-bg: var(--color-dominant);
    --btn-cta-bg: var(--color-secondary-red);
    --hover-global: var(--color-secondary-orange);
    
    /* Typography */
    --font-primary: 'Inter', sans-serif;
}

body {
    font-family: var(--font-primary);
    color: var(--color-neutral-black);
    background-color: var(--color-neutral-white);
    line-height: 1.6;
}

/* Navbar styles */
.navbar {
    background-color: var(--bg-navbar);
    box-shadow: 0 2px 10px rgba(0,0,0,0.05);
    padding: 1rem 0;
}

.nav-link {
    color: var(--text-nav-links) !important;
    font-weight: 500;
    margin: 0 1rem;
    transition: color 0.3s ease;
    position: relative;
}

.nav-link:hover {
    color: var(--hover-global) !important;
}

.nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0;
    width: 100%;
    height: 2px;
    background-color: var(--text-nav-active);
}

.navbar-brand {
    font-weight: 700;
    color: var(--color-dominant) !important;
    font-size: 1.5rem;
}

/* Button styles */
.btn-humain-primary {
    background-color: var(--btn-primary-bg);
    color: var(--color-neutral-white);
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 4px;
    font-weight: 600;
    transition: background-color 0.3s ease;
}

.btn-humain-primary:hover {
    background-color: var(--hover-global);
    color: var(--color-neutral-white);
}

.btn-humain-cta {
    background-color: var(--btn-cta-bg);
    color: var(--color-neutral-white);
    border: none;
    padding: 0.75rem 1.75rem;
    border-radius: 4px;
    font-weight: 700;
    transition: all 0.3s ease;
    background: linear-gradient(135deg, var(--color-secondary-red) 0%, var(--color-secondary-red) 100%);
}

.btn-humain-cta:hover {
    background: linear-gradient(135deg, var(--color-secondary-red) 0%, var(--color-secondary-orange) 100%);
    color: var(--color-neutral-white);
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(230, 57, 70, 0.3);
}

/* Sections */
.section-alt {
    background-color: var(--color-neutral-gray);
}

.section-padding {
    padding: 80px 0;
}

/* Insight Blocks */
.insight-block {
    border-left: 5px solid var(--color-secondary-red);
    padding-left: 1.5rem;
    margin: 2rem 0;
}

.insight-badge {
    background-color: var(--color-secondary-orange);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
    display: inline-block;
    margin-bottom: 0.5rem;
}

/* Hero Section */
.hero-section {
    padding: 120px 0;
    background: radial-gradient(circle at top right, #f0f7ff, #ffffff);
}

.hero-h1 {
    font-weight: 800;
    color: var(--color-dominant);
    margin-bottom: 1.5rem;
}

.hero-subtitle {
    font-size: 1.25rem;
    color: #444;
    margin-bottom: 2rem;
}

/* Cards */
.card-humain {
    border: none;
    border-radius: 8px;
    background: white;
    box-shadow: 0 4px 20px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, border-color 0.3s ease;
    padding: 2rem;
    height: 100%;
    border: 1px solid transparent;
}

.card-humain:hover {
    transform: translateY(-5px);
    border-color: var(--color-secondary-orange);
}

/* Typography styles */
h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
}

.text-clinical {
    color: #555;
    font-size: 0.95rem;
}

/* Mini help/tooltip text */
.trust-note {
    font-size: 0.85rem;
    color: #777;
    margin-top: 1rem;
}

/* Transitions */
* {
    transition: border-color 0.3s ease, background-color 0.3s ease, color 0.3s ease;
}

/* Footer */
footer {
    background-color: var(--color-neutral-white);
    border-top: 1px solid #eee;
    padding: 60px 0 30px;
}

footer .footer-title {
    color: var(--color-dominant);
    font-weight: 700;
    margin-bottom: 1.5rem;
}

footer a {
    color: #666;
    text-decoration: none;
    transition: color 0.3s ease;
}

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

.legal-text {
    font-size: 0.85rem;
    color: #999;
}