/* --- Global Variables & Resets --- */
:root {
    --principal: #1C4D6D;
    --principal-secundario: #3A7092;
    --secundario: #E6EAED; /* Light gray for backgrounds */
    --gris: #F7FCFF; /* Very light gray / off-white */
    --claro: #96C0DB; /* Accent light blue */
    --oscuro: #001F33; /* Deep dark blue for text or dark backgrounds */
    --blanco: #FFFFFF;
    --negro: #333333; /* Standard text color */

    --font-titles: 'Urbanist', sans-serif;
    --font-body: 'Poppins', sans-serif;

    --container-width: 1140px;
    --spacing-unit: 1rem; /* Approx 16px */
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px; /* Base font size */
}

body {
    font-family: var(--font-body);
    color: var(--negro);
    background-color: var(--gris);
    line-height: 1.6;
    overflow-x: hidden;
}

.container {
    width: 90%;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 var(--spacing-unit);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-titles);
    color: var(--principal);
    font-weight: 700; /* Bold by default for Urbanist */
    margin-bottom: calc(var(--spacing-unit) * 1.5);
    line-height: 1.2;
}

h1 { font-size: 3rem; font-weight: 800; } /* Urbanist Black */
h2 { font-size: 2.5rem; font-weight: 700; margin-top: var(--spacing-unit); } /* Urbanist Bold */
h3 { font-size: 1.75rem; font-weight: 600; } /* Urbanist SemiBold/Medium */
h4 { font-size: 1.25rem; font-weight: 500; color: var(--principal-secundario); } /* Urbanist Medium */

p {
    margin-bottom: var(--spacing-unit);
    font-weight: 400; /* Poppins Regular */
}

a {
    text-decoration: none;
    color: var(--principal-secundario);
    font-weight: 500; /* Poppins Medium */
}

a:hover {
    color: var(--principal);
}

ul {
    list-style: none;
    padding-left: 0;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

section {
    padding: calc(var(--spacing-unit) * 4) 0; /* 64px top/bottom */
}

.section-intro {
    font-size: 1.1rem;
    color: #555;
    max-width: 700px;
    margin-left: auto;
    margin-right: auto;
    text-align: center;
    margin-bottom: calc(var(--spacing-unit) * 2.5);
}

/* --- Buttons --- */
.btn {
    display: inline-block;
    padding: calc(var(--spacing-unit) * 0.75) calc(var(--spacing-unit) * 1.75); /* 12px 28px */
    font-family: var(--font-titles);
    font-weight: 600; /* Urbanist Medium/SemiBold */
    border-radius: 25px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
    cursor: pointer;
    font-size: 1rem;
}

.btn-primary {
    background-color: var(--principal);
    color: var(--blanco);
    border-color: var(--principal);
}

.btn-primary:hover {
    background-color: var(--principal-secundario);
    border-color: var(--principal-secundario);
    color: var(--blanco);
    transform: translateY(-2px);
}

/* --- Header --- */
#header {
    background-color: var(--blanco);
    padding: var(--spacing-unit) 0;
    position: fixed;
    width: 100%;
    top: 0;
    left: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    transition: background-color 0.3s ease;
}

#header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

#header .logo img {
    height: 40px; /* Adjust as needed */
}

#header .nav-links {
    display: flex;
    gap: calc(var(--spacing-unit) * 1.5); /* 24px */
}

#header .nav-links li a {
    font-family: var(--font-titles);
    font-weight: 500; /* Urbanist Medium */
    color: var(--oscuro);
    padding: 0.5rem 0;
    position: relative;
}

#header .nav-links li a::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 0;
    height: 2px;
    background-color: var(--principal);
    transition: width 0.3s ease;
}

#header .nav-links li a:hover::after,
#header .nav-links li a.active::after {
    width: 100%;
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px;
}
.menu-toggle span {
    display: block;
    width: 25px;
    height: 3px;
    background-color: var(--principal);
    transition: all 0.3s ease;
}

/* --- Hero Section --- */
.hero-section {
    background-color: var(--secundario);
    color: var(--principal);
    text-align: center;
    padding: calc(var(--spacing-unit) * 8) 0 calc(var(--spacing-unit) * 5); /* More padding top due to fixed header */
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
}

.hero-section .container {
    max-width: 800px;
}

.hero-icon {
    width: 80px; /* Adjust size */
    margin: 0 auto var(--spacing-unit);
    opacity: 0.8;
}

.hero-section h1 {
    font-size: 4rem; /* Urbanist Black */
    font-weight: 900;
    color: var(--principal);
    margin-bottom: var(--spacing-unit);
}

.hero-section .lema {
    font-family: var(--font-titles);
    font-size: 1.8rem; /* Urbanist Light or Regular */
    font-weight: 400;
    color: var(--principal-secundario);
    margin-bottom: var(--spacing-unit);
}

.hero-section .sub-lema {
    font-size: 1.1rem;
    color: var(--oscuro);
    margin-bottom: calc(var(--spacing-unit) * 2);
}

/* --- Services Section --- */
.services-section {
    background-color: var(--blanco);
}
.services-section h2 {
    text-align: center;
}
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: calc(var(--spacing-unit) * 2); /* 32px */
    margin-top: calc(var(--spacing-unit) * 2);
}

.service-card {
    background-color: var(--gris);
    padding: calc(var(--spacing-unit) * 1.5); /* 24px */
    border-radius: 8px;
    border: 1px solid var(--secundario);
    box-shadow: 0 4px 15px rgba(0,0,0,0.05);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px rgba(28, 77, 109, 0.1);
}

.service-icon {
    width: 40px; /* Adjust size */
    height: 40px;
    margin-bottom: var(--spacing-unit);
    opacity: 0.7;
}

.service-card h3 {
    color: var(--principal);
    font-size: 1.4rem; /* Urbanist SemiBold */
    font-weight: 600;
    margin-bottom: var(--spacing-unit);
}

.service-card ul {
    padding-left: var(--spacing-unit); /* Indent list items */
}

.service-card ul li {
    margin-bottom: calc(var(--spacing-unit) * 0.5); /* 8px */
    font-size: 0.95rem;
    color: var(--negro);
}
.service-card ul li strong {
    font-weight: 600; /* Poppins SemiBold */
    color: var(--principal-secundario);
}

.cloud-partners {
    text-align: center;
    margin-top: calc(var(--spacing-unit) * 3);
    color: var(--principal-secundario);
}
.cloud-partners p {
    font-family: var(--font-titles);
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
}
.cloud-partners span {
    font-weight: 600;
    padding: 0 0.5rem;
}

/* --- Differentiators Section --- */
.differentiators-section {
    background-color: var(--principal);
    color: var(--blanco);
}

.differentiators-section h2,
.differentiators-section .section-intro {
    color: var(--blanco);
}
.differentiators-section .section-intro {
    color: var(--claro); /* Lighter text for intro on dark background */
}

.differentiators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: calc(var(--spacing-unit) * 2);
    margin-top: calc(var(--spacing-unit) * 2);
}

.differentiator-item {
    background-color: var(--principal-secundario);
    padding: calc(var(--spacing-unit) * 1.5);
    border-radius: 8px;
    text-align: center;
    transition: transform 0.3s ease;
}
.differentiator-item:hover {
    transform: scale(1.03);
}

.differentiator-icon {
    width: 48px; /* Adjust size */
    height: 48px;
    margin: 0 auto var(--spacing-unit);
}

.differentiator-item h4 {
    color: var(--blanco); /* Urbanist Medium */
    font-size: 1.3rem;
    font-weight: 500;
    margin-bottom: calc(var(--spacing-unit) * 0.75);
}

.differentiator-item p {
    font-size: 0.9rem; /* Poppins Regular */
    color: var(--secundario);
    margin-bottom: 0;
}

.sector-focus {
    text-align: center;
    margin-top: calc(var(--spacing-unit) * 2.5);
    font-size: 1.1rem;
    color: var(--claro);
}
.sector-focus strong {
    color: var(--blanco);
    font-weight: 600;
}

/* --- Contact Section --- */
.contact-section {
    background-color: var(--secundario);
}
.contact-section h2 {
    text-align: center;
}
.contact-form {
    max-width: 600px;
    margin: calc(var(--spacing-unit) * 2) auto 0;
    background-color: var(--blanco);
    padding: calc(var(--spacing-unit) * 2);
    border-radius: 8px;
    box-shadow: 0 5px 20px rgba(0,0,0,0.08);
}

.form-group {
    margin-bottom: calc(var(--spacing-unit) * 1.25);
}

.form-group label {
    display: block;
    margin-bottom: calc(var(--spacing-unit) * 0.5);
    font-family: var(--font-titles);
    font-weight: 500; /* Urbanist Medium */
    color: var(--principal-secundario);
}

.form-group input[type="text"],
.form-group input[type="email"],
.form-group textarea {
    width: 100%;
    padding: calc(var(--spacing-unit) * 0.75);
    border: 1px solid #ccc;
    border-radius: 4px;
    font-family: var(--font-body);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

.form-group input[type="text"]:focus,
.form-group input[type="email"]:focus,
.form-group textarea:focus {
    border-color: var(--principal);
    outline: none;
    box-shadow: 0 0 0 2px rgba(28, 77, 109, 0.2);
}

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

.contact-form button[type="submit"] {
    width: 100%;
    padding: calc(var(--spacing-unit) * 0.85) calc(var(--spacing-unit) * 1.75);
    font-size: 1.1rem;
}

#form-status {
    text-align: center;
    margin-top: var(--spacing-unit);
    font-weight: 500;
}

/* --- Footer --- */
#footer {
    background-color: var(--oscuro);
    color: var(--secundario);
    padding: calc(var(--spacing-unit) * 3) 0;
    text-align: center;
}

.footer-logo {
    height: 45px; /* Adjust as needed */
    margin: 0 auto var(--spacing-unit);
    opacity: 0.9;
}

#footer p {
    margin-bottom: calc(var(--spacing-unit) * 0.5);
    font-size: 0.9rem; /* Poppins Regular */
}
#footer p:last-child {
    margin-bottom: 0;
}

/* --- Responsive Design --- */
@media (max-width: 992px) {
    .hero-section h1 { font-size: 3.2rem; }
    .hero-section .lema { font-size: 1.5rem; }
    .services-grid { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
}

@media (max-width: 768px) {
    html { font-size: 15px; }
    .container { width: 95%; }

    #header .nav-links {
        display: none;
        flex-direction: column;
        position: absolute;
        top: 100%; /* Position below header */
        left: 0;
        width: 100%;
        background-color: var(--blanco);
        padding: var(--spacing-unit) 0;
        box-shadow: 0 2px 5px rgba(0,0,0,0.1);
        border-top: 1px solid var(--secundario);
    }
    #header .nav-links.active {
        display: flex;
    }
    #header .nav-links li {
        text-align: center;
        margin: 0;
    }
    #header .nav-links li a {
        display: block;
        padding: var(--spacing-unit) calc(var(--spacing-unit) * 1.5);
    }
    .menu-toggle {
        display: flex;
    }
    .menu-toggle.active span:nth-child(1) {
        transform: translateY(8px) rotate(45deg);
    }
    .menu-toggle.active span:nth-child(2) {
        opacity: 0;
    }
    .menu-toggle.active span:nth-child(3) {
        transform: translateY(-8px) rotate(-45deg);
    }


    .hero-section { padding-top: calc(var(--spacing-unit) * 10); } /* More top padding for hero content */
    .hero-section h1 { font-size: 2.8rem; }
    .hero-section .lema { font-size: 1.3rem; }

    .services-grid, .differentiators-grid {
        grid-template-columns: 1fr; /* Stack on smaller screens */
    }
    .service-card, .differentiator-item {
        margin-bottom: calc(var(--spacing-unit) * 1.5);
    }
    section {
        padding: calc(var(--spacing-unit) * 3) 0;
    }
}

@media (max-width: 480px) {
    html { font-size: 14px; }
    .hero-section h1 { font-size: 2.4rem; }
    .hero-section .lema { font-size: 1.1rem; }
    .btn { padding: calc(var(--spacing-unit) * 0.7) calc(var(--spacing-unit) * 1.5); }
}