/*
    Eslabones Landing Page Styles
    Branding: Oswald (Titles), Open Sans (Body)
    Colors: #FDD835 (Yellow), #1F1F1F (Dark Text), #F4F4F4 (Light BG)
*/

/* --- Universal Resets and Base Styles --- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

:root {
    --color-primary: #FDD835; /* Company Yellow */
    --color-text-dark: #1F1F1F; /* Dark Gray/Black */
    --color-text-light: #FFFFFF;
    --color-bg-main: #FFFFFF;
    --color-bg-light: #F4F4F4;
    --font-heading: 'Oswald', sans-serif;
    --font-body: 'Open Sans', sans-serif;
}

body {
    font-family: var(--font-body);
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-bg-main);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

h1, h2, h3 {
    font-family: var(--font-heading);
    line-height: 1.2;
    margin-bottom: 0.5em;
    color: var(--color-text-dark);
}

a {
    text-decoration: none;
    color: var(--color-text-dark);
    /* Clean, fast transition for smooth effects without heavy scripts */
    transition: color 0.3s ease, background-color 0.3s ease;
}

/* --- Header & Navigation --- */
.header {
    background-color: var(--color-bg-main);
    padding: 15px 0;
    border-bottom: 2px solid var(--color-bg-light);
}

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

.logo {
    /* Adjust size based on your actual logo image */
    height: 40px; 
    width: auto;
}

.main-nav a {
    margin-left: 25px;
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.95rem;
}

.main-nav a:hover {
    color: var(--color-primary);
}

.cta-btn {
    padding: 10px 20px;
    border-radius: 4px;
    font-weight: 700;
    text-transform: uppercase;
    display: inline-block;
    text-align: center;
}

/* --- Hero Section --- */
.hero-section {
    background-color: var(--color-bg-light);
    padding: 100px 0;
    text-align: center;
}

.hero-title {
    font-size: 3.5rem;
    margin-bottom: 0.2em;
    font-weight: 700;
    color: var(--color-text-dark);
}

.hero-subtitle {
    font-size: 1.8rem;
    color: var(--color-primary);
    margin-bottom: 1em;
    font-weight: 400;
}

.hero-text {
    font-size: 1.15rem;
    max-width: 700px;
    margin: 0 auto 30px;
}

.hero-ctas {
    display: flex;
    justify-content: center;
    gap: 20px;
}

.primary-cta {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    border: 2px solid var(--color-primary);
}

.primary-cta:hover {
    background-color: #f7b700; /* Slightly darker yellow */
}

.secondary-cta {
    background-color: transparent;
    color: var(--color-text-dark);
    border: 2px solid var(--color-text-dark);
}

.secondary-cta:hover {
    background-color: var(--color-text-dark);
    color: var(--color-text-light);
}

/* --- Sectors Section --- */
.sectors-section {
    padding: 80px 0;
    background-color: var(--color-bg-main);
    text-align: center;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 50px;
    font-weight: 700;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 60px;
    height: 4px;
    background-color: var(--color-primary);
    margin: 10px auto 0;
}

.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.sector-card {
    display: block;
    padding: 30px;
    background-color: var(--color-bg-light);
    border-radius: 8px;
    text-align: left;
    border-bottom: 4px solid transparent;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.05);
}

.sector-card:hover {
    border-bottom-color: var(--color-primary);
    transform: translateY(-5px);
    box-shadow: 0 8px 15px rgba(0, 0, 0, 0.1);
}

.sector-card h3 {
    color: var(--color-primary);
    font-size: 1.5rem;
    margin-bottom: 10px;
    text-transform: uppercase;
}

/* --- Services Section --- */
.services-section {
    background-color: var(--color-text-dark);
    padding: 80px 0;
    text-align: center;
    color: var(--color-text-light);
}

.services-section .section-title {
    color: var(--color-text-light);
}

.services-section .section-title::after {
    background-color: var(--color-primary);
}

.services-list {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
    margin-bottom: 30px;
}

.service-item {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    padding: 12px 25px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 1rem;
    text-transform: uppercase;
}

.service-item:hover {
    background-color: var(--color-bg-main);
    color: var(--color-text-dark);
}

.full-services-link {
    display: block;
    width: 100%;
    margin-top: 30px;
    color: var(--color-primary);
    font-weight: 600;
    font-size: 1.1rem;
}

.full-services-link:hover {
    color: var(--color-bg-main);
}


/* --- Footer --- */
.footer {
    background-color: var(--color-text-dark);
    color: var(--color-text-light);
    padding: 50px 0 20px;
    font-size: 0.95rem;
}

.footer h3 {
    color: var(--color-primary);
    margin-bottom: 15px;
    font-size: 1.2rem;
}

.footer-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 30px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    padding-bottom: 30px;
    margin-bottom: 20px;
}

.footer-links ul {
    list-style: none;
}

.footer-links a, .footer-contact a {
    color: var(--color-text-light);
    display: block;
    margin-bottom: 8px;
}

.footer-links a:hover, .footer-contact a:hover {
    color: var(--color-primary);
}

.small-cta-btn {
    background-color: var(--color-primary);
    color: var(--color-text-dark);
    padding: 8px 15px;
    margin-top: 10px;
    font-size: 0.9rem;
}

.small-cta-btn:hover {
    background-color: var(--color-bg-main);
}

.footer-bottom {
    text-align: center;
    opacity: 0.7;
    font-size: 0.85rem;
}

/* --- Media Queries for Responsiveness (Universal/Standard) --- */
@media (max-width: 900px) {
    .hero-title {
        font-size: 2.5rem;
    }
    .hero-subtitle {
        font-size: 1.5rem;
    }
    .header .container {
        flex-direction: column;
        text-align: center;
    }
    .main-nav {
        margin-top: 15px;
    }
    .main-nav a {
        margin: 0 10px;
        display: inline-block;
        margin-bottom: 10px;
    }
}

@media (max-width: 600px) {
    .hero-section {
        padding: 60px 0;
    }
    .hero-title {
        font-size: 2rem;
    }
    .hero-ctas {
        flex-direction: column;
        gap: 15px;
    }
    .cta-btn {
        width: 100%;
    }
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    .footer-links ul {
        padding: 0;
    }
}