:root {
    --color-primary: #12045b; /* azul oscuro tipo rombo */
    --color-primary-light: #a8b3da; /* azul claro logo */
    --color-gray-blue: #7a829b;
    --color-bg-light: #f6f7fb;
    --color-text: #1e1e1e;
    --radius-soft: 12px;
    --shadow-soft: 0 10px 30px rgba(0, 0, 0, 0.08);
    --max-width: 1120px;
    --transition-fast: 0.2s ease-in-out;
    --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

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

body {
    font-family: var(--font-main);
    color: var(--color-text);
    background-color: #ffffff;
    line-height: 1.5;
}

/* Utilidades */

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 1.5rem;
}

.section {
    padding: 5rem 0;
}

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

.section-header {
    text-align: center;
    margin-bottom: 2.5rem;
}

.section-header-left {
    text-align: left;
}

.section-header h2 {
    font-size: clamp(2rem, 3vw, 2.4rem);
    color: var(--color-primary);
    margin-bottom: 0.5rem;
}

.section-header p {
    max-width: 640px;
    margin: 0.5rem auto 0;
    color: var(--color-gray-blue);
}

/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 20;
    background-color: #ffffff;
    border-bottom: 1px solid rgba(18, 4, 91, 0.05);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 70px;
}

.logo img {
    height: 40px;
    display: block;
}

.main-nav {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

.main-nav a {
    text-decoration: none;
    color: var(--color-gray-blue);
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

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

/* Botón menú móvil */

.nav-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
}

/* HERO */

.hero {
    padding: 5rem 0 4rem;
    background: linear-gradient(135deg, #ffffff 0%, #f4f6ff 40%, #e3e7ff 100%);
}

.hero-inner {
    display: grid;
    grid-template-columns: minmax(0, 1.2fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: center;
}

.hero-text h1 {
    font-size: clamp(2.4rem, 4vw, 3rem);
    color: var(--color-primary);
    margin-bottom: 1rem;
}

.hero-text p {
    font-size: 1.02rem;
    max-width: 540px;
    color: var(--color-gray-blue);
}

.hero-actions {
    margin-top: 2rem;
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
}

/* Botones */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.8rem 1.6rem;
    border-radius: 999px;
    font-size: 0.95rem;
    font-weight: 600;
    border: 1px solid transparent;
    text-decoration: none;
    cursor: pointer;
    transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.btn-primary {
    background-color: var(--color-primary);
    color: #ffffff;
    box-shadow: var(--shadow-soft);
}

.btn-primary:hover {
    background-color: #090039;
    transform: translateY(-1px);
}

.btn-outline {
    background-color: rgba(255, 255, 255, 0.8);
    color: var(--color-primary);
    border-color: var(--color-primary-light);
}

.btn-outline:hover {
    background-color: #ffffff;
    border-color: var(--color-primary);
}

.btn-full {
    width: 100%;
}

/* Gráfico inspirado en el logo */

.hero-graphic {
    position: relative;
    min-height: 220px;
}

.diamond {
    position: absolute;
    width: 170px;
    height: 170px;
    transform: rotate(45deg);
    border-radius: 18px;
}

.diamond-1 {
    background: linear-gradient(135deg, #150866, #070037);
    top: 30%;
    left: 0;
}

.diamond-2 {
    background: rgba(122, 130, 155, 0.95);
    top: 8%;
    left: 30%;
}

.diamond-3 {
    background: rgba(168, 179, 218, 0.95);
    top: -15%;
    left: 55%;
}

/* CARDS */

.cards-grid {
    display: grid;
    gap: 1.8rem;
}

.cards-grid-3 {
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.card {
    background-color: #ffffff;
    border-radius: var(--radius-soft);
    padding: 1.8rem 1.6rem;
    box-shadow: var(--shadow-soft);
    border: 1px solid rgba(0, 0, 0, 0.02);
}

.card h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.7rem;
}

.card p {
    font-size: 0.96rem;
    color: var(--color-text);
}

.card-project .card-meta {
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-gray-blue);
    margin-bottom: 0.5rem;
}

/* NOSOTROS */

.about-grid {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: minmax(0, 1.4fr) minmax(0, 1fr);
    align-items: flex-start;
}

.about-grid p {
    margin-bottom: 1rem;
    color: var(--color-text);
}

.about-highlights {
    display: flex;
    flex-wrap: wrap;
    gap: 1.5rem;
    margin-top: 1.5rem;
}

.highlight-number {
    display: block;
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--color-primary);
}

.highlight-label {
    display: block;
    font-size: 0.8rem;
    color: var(--color-gray-blue);
}

.about-panel {
    background-color: #ffffff;
    border-radius: var(--radius-soft);
    padding: 1.8rem 1.6rem;
    box-shadow: var(--shadow-soft);
}

.about-panel h3 {
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 0.8rem;
}

.about-panel ul {
    list-style: none;
    font-size: 0.95rem;
    color: var(--color-text);
}

.about-panel li {
    position: relative;
    padding-left: 1.4rem;
    margin-bottom: 0.6rem;
}

.about-panel li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.55rem;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background-color: var(--color-primary);
}

/* CONTACTO */

.contact-grid {
    display: grid;
    gap: 2.5rem;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
    align-items: flex-start;
}

.contact-data p {
    margin-bottom: 0.4rem;
    color: var(--color-text);
}

.contact-form {
    background-color: #ffffff;
    border-radius: var(--radius-soft);
    padding: 1.8rem 1.6rem;
    box-shadow: var(--shadow-soft);
}

.form-field {
    margin-bottom: 1rem;
}

.form-field label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.3rem;
    color: var(--color-primary);
}

.form-field input,
.form-field textarea {
    width: 100%;
    border-radius: 8px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    padding: 0.6rem 0.7rem;
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: var(--color-primary-light);
    box-shadow: 0 0 0 2px rgba(168, 179, 218, 0.3);
}

/* FOOTER */

.site-footer {
    background-color: var(--color-primary);
    color: #ffffff;
    padding: 1.8rem 0;
    margin-top: 2rem;
}

.footer-inner {
    text-align: center;
    font-size: 0.9rem;
}

.footer-small {
    margin-top: 0.3rem;
    opacity: 0.8;
}

/* RESPONSIVE */

@media (max-width: 960px) {
    .hero-inner {
        grid-template-columns: minmax(0, 1fr);
    }

    .hero-graphic {
        order: -1;
        margin-bottom: 1rem;
    }

    .cards-grid-3 {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .about-grid,
    .contact-grid {
        grid-template-columns: minmax(0, 1fr);
    }
}

@media (max-width: 720px) {
    .header-inner {
        height: 64px;
    }

    .main-nav {
        position: absolute;
        top: 64px;
        right: 0;
        background-color: #ffffff;
        flex-direction: column;
        align-items: flex-start;
        padding: 1rem 1.5rem;
        gap: 0.8rem;
        box-shadow: 0 10px 25px rgba(0, 0, 0, 0.1);
        transform: translateY(-120%);
        opacity: 0;
        pointer-events: none;
        transition: transform var(--transition-fast), opacity var(--transition-fast);
    }

    .main-nav.nav-open {
        transform: translateY(0);
        opacity: 1;
        pointer-events: auto;
    }

    .nav-toggle {
        display: block;
        color: var(--color-primary);
    }

    .cards-grid-3 {
        grid-template-columns: minmax(0, 1fr);
    }

    .section {
        padding: 3.5rem 0;
    }
}