/* Libertad 46 — paleta basada en el logotipo (azul marino + gris carbón) */
:root {
    --color-primary: #1a3355;
    --color-primary-dark: #0f1f35;
    --color-accent: #4a555e;
    --color-accent-light: #6b7c8f;
    --color-accent-hover: #3a4550;
    --color-surface: #f0f4f8;
    --color-text: #1a2b3c;
    --color-text-muted: #5a6b7d;
    --color-white: #ffffff;
    --font-body: "DM Sans", system-ui, sans-serif;
    --font-display: "Oswald", sans-serif;
    --header-h: 76px;
    --radius: 10px;
    --shadow: 0 8px 32px rgba(26, 51, 85, 0.12);
}

*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.65;
    color: var(--color-text);
    background: var(--color-white);
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--color-primary); text-decoration: none; }
a:hover { color: var(--color-accent-light); }
.container { width: min(1140px, 92vw); margin: 0 auto; }

/* Header */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(15, 31, 53, 0.97);
    backdrop-filter: blur(8px);
    border-bottom: 3px solid var(--color-accent);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: var(--header-h);
    gap: 1rem;
}
.logo-badge {
    display: inline-flex;
    align-items: center;
    padding: 0.4rem 0.75rem;
    background: rgba(255, 255, 255, 0.88);
    border-radius: var(--radius);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.15);
}
.logo-link.logo-badge { text-decoration: none; }
.logo-img { height: 52px; width: auto; }
.main-nav ul {
    display: flex;
    gap: 1.75rem;
    list-style: none;
    margin: 0;
    padding: 0;
}
.main-nav a {
    color: var(--color-white);
    font-weight: 600;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
}
.main-nav a:hover { color: var(--color-accent-light); }
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--color-white);
}

/* Hero */
.hero {
    position: relative;
    min-height: 88vh;
    display: flex;
    align-items: center;
    margin-top: var(--header-h);
    background:
        linear-gradient(135deg, rgba(15, 31, 53, 0.95) 0%, rgba(26, 51, 85, 0.88) 50%, rgba(15, 31, 53, 0.95) 100%),
        repeating-linear-gradient(
            -45deg,
            transparent,
            transparent 40px,
            rgba(74, 85, 94, 0.06) 40px,
            rgba(74, 85, 94, 0.06) 41px
        );
    background-color: var(--color-primary-dark);
}
.hero-overlay { display: none; }
.hero-content {
    position: relative;
    z-index: 1;
    padding: 4rem 0;
    max-width: 720px;
}
.hero-eyebrow {
    color: var(--color-accent-light);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    font-size: 0.8rem;
    margin: 0 0 1rem;
}
.hero h1 {
    font-family: var(--font-display);
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    line-height: 1.15;
    color: var(--color-white);
    margin: 0 0 1.25rem;
    text-transform: uppercase;
}
.hero-lead {
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.1rem;
    margin: 0 0 2rem;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; }

/* Buttons */
.btn {
    display: inline-block;
    padding: 0.85rem 1.75rem;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    border-radius: var(--radius);
    border: 2px solid transparent;
    transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.btn-primary {
    background: var(--color-accent);
    color: var(--color-white);
    border-color: var(--color-accent);
}
.btn-primary:hover {
    background: var(--color-accent-hover);
    border-color: var(--color-accent-hover);
    color: var(--color-white);
}
.btn-outline {
    background: transparent;
    color: var(--color-white);
    border-color: rgba(255, 255, 255, 0.6);
}
.btn-outline:hover {
    background: var(--color-white);
    color: var(--color-primary);
}
.btn-on-dark { margin-top: 0.5rem; }

/* Sections */
.section { padding: 5rem 0; }
.section-alt { background: var(--color-surface); }
.section-header { margin-bottom: 2.5rem; }
.section-header--center { text-align: center; }
.section-header--center .section-intro {
    max-width: 560px;
    margin: 0.5rem auto 0;
    color: var(--color-text-muted);
}
.section-tag {
    display: inline-block;
    color: var(--color-accent);
    font-weight: 700;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.14em;
    margin-bottom: 0.5rem;
}
.section-header h2 {
    font-family: var(--font-display);
    font-size: clamp(1.75rem, 4vw, 2.25rem);
    color: var(--color-primary);
    margin: 0;
    text-transform: uppercase;
}

/* About */
.about-grid {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 2.5rem;
    align-items: start;
}
.about-text p { margin: 0 0 1rem; }
.about-list {
    list-style: none;
    padding: 0;
    margin: 1.5rem 0 0;
}
.about-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    margin-bottom: 0.65rem;
}
.about-list i { color: var(--color-accent); margin-top: 4px; }
.about-highlights { display: flex; flex-direction: column; gap: 1rem; }
.highlight-card {
    background: var(--color-white);
    border-left: 4px solid var(--color-accent);
    padding: 1.25rem 1.5rem;
    border-radius: 0 var(--radius) var(--radius) 0;
    box-shadow: var(--shadow);
}
.highlight-card i {
    font-size: 1.5rem;
    color: var(--color-accent);
    margin-bottom: 0.5rem;
}
.highlight-card h3 {
    margin: 0 0 0.35rem;
    font-size: 1.05rem;
    color: var(--color-primary);
}
.highlight-card p { margin: 0; font-size: 0.95rem; color: var(--color-text-muted); }

/* Services */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}
.service-card {
    background: var(--color-white);
    padding: 1.75rem;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    border-top: 3px solid var(--color-accent);
    transition: transform 0.2s;
}
.service-card:hover { transform: translateY(-4px); }
.service-icon {
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(74, 85, 94, 0.12);
    color: var(--color-accent);
    border-radius: 50%;
    font-size: 1.35rem;
    margin-bottom: 1rem;
}
.service-card h3 {
    margin: 0 0 0.5rem;
    font-size: 1.1rem;
    color: var(--color-primary);
}
.service-card p { margin: 0; font-size: 0.95rem; color: var(--color-text-muted); }

/* CTA */
.cta-band {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: 3.5rem 0;
    text-align: center;
}
.cta-band h2 {
    font-family: var(--font-display);
    color: var(--color-white);
    margin: 0 0 0.5rem;
    text-transform: uppercase;
}
.cta-band p { color: rgba(255, 255, 255, 0.85); margin: 0 0 1.25rem; }

/* Contact */
.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.1fr;
    gap: 2rem;
    align-items: start;
}
.contact-cards { display: flex; flex-direction: column; gap: 1rem; }
.contact-card {
    display: flex;
    gap: 1.25rem;
    padding: 1.25rem 1.5rem;
    background: var(--color-surface);
    border-radius: var(--radius);
    border: 1px solid rgba(26, 51, 85, 0.08);
}
.contact-card > i {
    font-size: 1.35rem;
    color: var(--color-accent);
    margin-top: 2px;
    flex-shrink: 0;
}
.contact-card h3 {
    margin: 0 0 0.35rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--color-primary);
}
.contact-card p { margin: 0; color: var(--color-text); }
.contact-card a { color: var(--color-primary); font-weight: 600; }
.contact-card a:hover { color: var(--color-accent); }
.contact-whatsapp {
    margin: 0.65rem 0 0;
    font-size: 0.95rem;
}
.contact-whatsapp a {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #128c7e;
    font-weight: 600;
}
.contact-whatsapp a:hover { color: #0d6b62; }
.contact-whatsapp .fa-whatsapp {
    font-size: 1.35rem;
}
.muted { color: var(--color-text-muted); font-size: 0.9rem; }
.contact-map {
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    min-height: 320px;
}
.contact-map iframe {
    width: 100%;
    height: 320px;
    border: 0;
    display: block;
}

/* Footer */
.site-footer {
    background: var(--color-primary-dark);
    color: rgba(255, 255, 255, 0.75);
    padding: 2.5rem 0;
    text-align: center;
}
.footer-logo-badge {
    margin: 0 auto 1rem;
    justify-content: center;
}
.footer-logo {
    height: 44px;
    width: auto;
    opacity: 0.95;
}
.footer-inner p { margin: 0.25rem 0; font-size: 0.9rem; }
.footer-tagline { font-size: 0.8rem; opacity: 0.7; }

/* Mobile */
@media (max-width: 900px) {
    .about-grid,
    .contact-grid { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
    .nav-toggle { display: flex; }
    .main-nav {
        position: fixed;
        top: var(--header-h);
        left: 0;
        right: 0;
        background: var(--color-primary);
        padding: 1rem 0;
        transform: translateY(-120%);
        opacity: 0;
        visibility: hidden;
        transition: transform 0.25s, opacity 0.25s, visibility 0.25s;
    }
    .main-nav.is-open {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    .main-nav ul {
        flex-direction: column;
        align-items: center;
        gap: 0;
    }
    .main-nav li { width: 100%; text-align: center; }
    .main-nav a { display: block; padding: 0.85rem 1rem; }
    .hero { min-height: 75vh; }
}