:root {
    --primary:   #2c3e50;
    --secondary: #116E25;
    /* Mismo tono (132deg) y saturacion que el verde de marca, solo mas claro. El
       #1B8F32 daba 2.63:1 sobre el azul #2c3e50 del encabezado y del pie — por debajo
       del 4.5 que exige WCAG AA — y era el UNICO fallo de accesibilidad de la pagina.
       Los cinco usos de --accent van sobre ese azul, ninguno sobre blanco. Ahora 4.83:1. */
    --accent:    #25C645;
    --bg:        #f0f4f8;
    --text:      #34495e;
    --card:      #ffffff;
    --border:    rgba(255,255,255,0.1);
}

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

body {
    font-family: 'Roboto', sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.65;
    overflow-x: hidden;
}

/* ── UTILITIES ── */
.container {
    max-width: 1140px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ── HEADER ── */
header {
    background: var(--primary);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 12px rgba(0,0,0,0.18);
}

.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 64px;
    gap: 16px;
}

.logo {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent);
    letter-spacing: 1px;
    flex-shrink: 0;
}

/* Desktop nav */
.nav-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.nav-links a {
    color: rgba(255,255,255,0.85);
    text-decoration: none;
    padding: 7px 14px;
    border-radius: 6px;
    font-size: 0.93rem;
    font-weight: 400;
    transition: color 0.2s, background 0.2s;
    white-space: nowrap;
}

.nav-links a:hover {
    color: #fff;
    background: rgba(255,255,255,0.09);
}

.nav-links .btn-nav {
    background: #0a7a5e;
    color: #fff;
    font-weight: 600;
    padding: 8px 18px;
    margin-left: 6px;
}

.nav-links .btn-nav:hover {
    background: var(--secondary);
    color: #fff;
}

/* Hamburger — hidden on desktop */
.hamburger {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: transparent;
    border: none;
    border-radius: 6px;
    cursor: pointer;
    padding: 0;
    transition: background 0.2s;
    flex-shrink: 0;
}

.hamburger:hover { background: rgba(255,255,255,0.1); }

.hamburger svg {
    width: 22px;
    height: 22px;
    color: white;
    display: block;
    pointer-events: none;
}

/* ── HERO ── */
.hero {
    background: linear-gradient(160deg, #1a3850 0%, #14433a 100%);
    color: #fff;
    text-align: center;
    padding: 110px 24px 120px;
}

.hero-badge {
    display: inline-block;
    background: rgba(37,198,69,0.18);
    border: 1px solid rgba(37,198,69,0.5);
    color: var(--accent);
    padding: 5px 16px;
    border-radius: 20px;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    margin-bottom: 22px;
    text-transform: uppercase;
}

.hero h1 {
    font-size: clamp(2rem, 5.5vw, 3.6rem);
    font-weight: 700;
    line-height: 1.15;
    margin-bottom: 20px;
    letter-spacing: -0.5px;
}

.hero p {
    font-size: clamp(1rem, 2vw, 1.18rem);
    font-weight: 300;
    max-width: 640px;
    margin: 0 auto 36px;
    opacity: 0.88;
    line-height: 1.7;
}

.cta-button {
    display: inline-block;
    background: #0a7a5e;
    color: #fff;
    padding: 14px 36px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 700;
    text-decoration: none;
    transition: background 0.25s, transform 0.2s, box-shadow 0.25s;
    cursor: pointer;
}

.cta-button:hover {
    background: var(--secondary);
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(0,0,0,0.22);
}

/* ── FEATURES ── */
.section { padding: 88px 0; }

.section-title {
    text-align: center;
    font-size: clamp(1.5rem, 3.5vw, 2.4rem);
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 52px;
    letter-spacing: -0.3px;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.feature-card {
    background: var(--card);
    padding: 36px 28px;
    border-radius: 12px;
    box-shadow: 0 2px 12px rgba(44,62,80,0.07);
    transition: transform 0.25s, box-shadow 0.25s;
    border: 1px solid rgba(44,62,80,0.06);
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: 0 16px 40px rgba(44,62,80,0.12);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, rgba(27,143,50,0.12), rgba(17,110,37,0.2));
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.feature-icon svg {
    width: 30px;
    height: 30px;
    color: var(--secondary);
}

.feature-card h3 {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
}

.feature-card p {
    font-size: 0.94rem;
    color: #5a6a7a;
    line-height: 1.65;
}

/* ── FOOTER ── */
footer {
    background: var(--primary);
    color: rgba(255,255,255,0.75);
}

.footer-top {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 48px;
    padding: 56px 24px 48px;
}

.footer-logo {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--accent);
    margin-bottom: 12px;
}

.footer-desc {
    font-size: 0.88rem;
    line-height: 1.65;
    max-width: 280px;
    opacity: 0.8;
}

.footer-col h4 {
    color: #fff;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.8px;
    text-transform: uppercase;
    margin-bottom: 16px;
}

.footer-col a {
    display: block;
    color: rgba(255,255,255,0.82);
    text-decoration: none;
    font-size: 0.9rem;
    margin-bottom: 10px;
    transition: color 0.2s;
    cursor: pointer;
}

.footer-col a:hover { color: var(--accent); }

.footer-bottom {
    border-top: 1px solid rgba(255,255,255,0.08);
}

.footer-bottom-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    padding: 18px 24px;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.72);
}

.footer-bottom-inner a {
    color: var(--accent);
    text-decoration: none;
    font-size: 0.8rem;
    transition: opacity 0.2s;
}

.footer-bottom-inner a:hover { opacity: 0.75; }

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
    /* Show hamburger, hide desktop nav */
    .hamburger { display: flex; }

    .nav-links {
        display: none;
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--primary);
        flex-direction: column;
        align-items: stretch;
        padding: 8px 16px 20px;
        gap: 0;
        box-shadow: 0 8px 24px rgba(0,0,0,0.3);
        border-top: 1px solid rgba(255,255,255,0.08);
    }

    .nav-links.open { display: flex; }

    .nav-links a {
        padding: 13px 10px;
        border-radius: 0;
        border-bottom: 1px solid rgba(255,255,255,0.07);
        font-size: 0.98rem;
        margin-left: 0;
    }

    .nav-links a:last-child { border-bottom: none; }

    .nav-links .btn-nav {
        margin: 10px 0 0;
        border-radius: 8px;
        text-align: center;
    }

    header { position: relative; }

    /* Hero */
    .hero { padding: 72px 20px 80px; }

    /* Features */
    .section { padding: 56px 0; }
    .section-title { margin-bottom: 32px; }
    .features-grid { grid-template-columns: 1fr; gap: 16px; }
    .feature-card { padding: 28px 22px; }

    /* Footer */
    .footer-top {
        grid-template-columns: 1fr;
        gap: 32px;
        padding: 40px 24px 32px;
    }

    .footer-bottom-inner {
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 6px;
    }
}

@media (max-width: 480px) {
    .hero { padding: 60px 16px 68px; }
    .feature-card { padding: 24px 18px; }
    .footer-desc { max-width: 100%; }
}