:root {
    --er-green: #147d74;
    --er-green-dark: #0d5b55;
    --er-green-soft: #e7f4f2;
    --er-white: #ffffff;
    --er-dark: #11201f;
    --er-muted: #667b78;
    --er-border: #dce8e6;
    --er-bg: #f6faf9;
}

* {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    color: var(--er-dark);
    background: var(--er-white);
    line-height: 1.7;
}

a {
    text-decoration: none;
}

.site-header {
    background: rgba(20, 125, 116, 0.96);
    backdrop-filter: blur(12px);
    box-shadow: 0 8px 25px rgba(0, 0, 0, 0.08);
}

.navbar {
    padding: 14px 0;
}

.brand-logo {
    width: 150px;
    height: auto;
    border-radius: 4px;
}

.nav-link {
    color: rgba(255, 255, 255, 0.86) !important;
    font-weight: 600;
    font-size: 0.95rem;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--er-white) !important;
}

.btn-primary {
    background: var(--er-green);
    border-color: var(--er-green);
}

.btn-primary:hover,
.btn-primary:focus {
    background: var(--er-green-dark);
    border-color: var(--er-green-dark);
}

.btn-outline-light {
    border-color: rgba(255, 255, 255, 0.7);
}

.hero-section {
    min-height: 100vh;
    padding: 150px 0 90px;
    color: var(--er-white);
    background:
        linear-gradient(135deg, rgba(13, 91, 85, 0.94), rgba(20, 125, 116, 0.86)),
        radial-gradient(circle at top right, rgba(255, 255, 255, 0.22), transparent 34%),
        linear-gradient(45deg, #0d5b55, #147d74);
    position: relative;
    overflow: hidden;
}

.hero-section::after {
    content: "";
    position: absolute;
    right: -120px;
    bottom: -160px;
    width: 430px;
    height: 430px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.08);
}

.hero-section .container {
    position: relative;
    z-index: 2;
}

.section-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 14px;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.14);
    color: var(--er-white);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    margin-bottom: 18px;
}

.section-badge.dark {
    background: var(--er-green-soft);
    color: var(--er-green-dark);
}

.hero-section h1,
.section-padding h2,
.cta-section h2 {
    font-weight: 800;
    line-height: 1.12;
}

.hero-section h1 {
    font-size: clamp(2.4rem, 5vw, 4.8rem);
    letter-spacing: -0.04em;
}

.hero-text {
    max-width: 760px;
    color: rgba(255, 255, 255, 0.88);
    font-size: 1.18rem;
    margin-top: 22px;
}

.hero-highlights {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
    max-width: 720px;
}

.hero-highlights div {
    padding: 18px;
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    background: rgba(255, 255, 255, 0.1);
}

.hero-highlights strong,
.hero-highlights span {
    display: block;
}

.hero-highlights strong {
    font-size: 1.05rem;
}

.hero-highlights span {
    color: rgba(255, 255, 255, 0.78);
    font-size: 0.9rem;
}

.hero-card {
    padding: 34px;
    border-radius: 28px;
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.2);
    box-shadow: 0 24px 80px rgba(0, 0, 0, 0.18);
}

.hero-logo {
    width: 100%;
    border-radius: 14px;
    margin-bottom: 28px;
    box-shadow: 0 12px 34px rgba(0, 0, 0, 0.14);
}

.hero-card h2 {
    font-size: 1.6rem;
    font-weight: 800;
}

.hero-card p {
    color: rgba(255, 255, 255, 0.84);
    margin-bottom: 0;
}

.section-padding {
    padding: 95px 0;
}

.bg-light {
    background: var(--er-bg) !important;
}

.section-padding h2 {
    font-size: clamp(2rem, 4vw, 3.1rem);
    letter-spacing: -0.035em;
}

.section-subtitle {
    color: var(--er-muted);
    font-size: 1.08rem;
    margin-top: 16px;
}

.service-group-title {
    font-weight: 800;
    color: var(--er-green-dark);
    margin-bottom: 2px;
    font-size: 1.5rem;
}

.service-card {
    background: var(--er-white);
    border: 1px solid var(--er-border);
    border-radius: 24px;
    padding: 30px;
    box-shadow: 0 16px 50px rgba(11, 55, 52, 0.06);
    transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.service-card:hover {
    transform: translateY(-6px);
    border-color: rgba(20, 125, 116, 0.3);
    box-shadow: 0 24px 60px rgba(11, 55, 52, 0.12);
}

.service-card.compact {
    padding: 26px;
}

.service-icon {
    width: 48px;
    height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 14px;
    background: var(--er-green-soft);
    color: var(--er-green-dark);
    font-weight: 800;
    margin-bottom: 20px;
}

.service-card h4 {
    font-weight: 800;
    font-size: 1.3rem;
    margin-bottom: 12px;
}

.service-card p {
    color: var(--er-muted);
}

.service-card ul {
    padding-left: 18px;
    color: var(--er-muted);
    margin-bottom: 0;
}

.about-section,
.faq-section {
    background: var(--er-white);
}

.about-section .section-badge,
.faq-section .section-badge {
    background: var(--er-green-soft);
    color: var(--er-green-dark);
}

.about-section p,
.faq-section p {
    color: var(--er-muted);
}

.about-list {
    display: grid;
    gap: 18px;
}

.about-list div {
    padding: 24px;
    border-radius: 22px;
    border: 1px solid var(--er-border);
    background: var(--er-bg);
}

.about-list strong,
.about-list span {
    display: block;
}

.about-list strong {
    font-size: 1.1rem;
    margin-bottom: 4px;
}

.about-list span {
    color: var(--er-muted);
}

.testimonial-card {
    border: 1px solid var(--er-border);
    background: var(--er-white);
    border-radius: 24px;
    padding: 30px;
    margin: 0;
    box-shadow: 0 16px 50px rgba(11, 55, 52, 0.06);
}

.testimonial-card p {
    color: var(--er-dark);
    font-size: 1.05rem;
    margin-bottom: 22px;
}

.testimonial-card footer {
    color: var(--er-green-dark);
    font-weight: 800;
}

.accordion-item {
    border: 1px solid var(--er-border);
    border-radius: 16px !important;
    overflow: hidden;
    margin-bottom: 14px;
}

.accordion-button {
    font-weight: 800;
    color: var(--er-dark);
}

.accordion-button:not(.collapsed) {
    background: var(--er-green-soft);
    color: var(--er-green-dark);
    box-shadow: none;
}

.accordion-button:focus {
    box-shadow: 0 0 0 0.25rem rgba(20, 125, 116, 0.18);
}

.cta-section {
    padding: 80px 0;
    background: var(--er-bg);
}

.cta-box {
    background: linear-gradient(135deg, var(--er-green-dark), var(--er-green));
    color: var(--er-white);
    border-radius: 32px;
    padding: 60px 30px;
    box-shadow: 0 26px 80px rgba(20, 125, 116, 0.22);
}

.cta-box p {
    color: rgba(255, 255, 255, 0.86);
    font-size: 1.08rem;
    margin: 14px auto 26px;
    max-width: 680px;
}

.footer-section {
    padding: 40px 0;
    background: #0c3431;
    color: rgba(255, 255, 255, 0.82);
}

.footer-logo {
    width: 180px;
    border-radius: 4px;
}

.whatsapp-float {
    position: fixed;
    right: 18px;
    bottom: 18px;
    z-index: 1030;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 18px;
    border-radius: 999px;
    background: #25d366;
    color: #fff;
    font-weight: 800;
    box-shadow: 0 12px 36px rgba(0, 0, 0, 0.2);
}

.whatsapp-float:hover {
    color: #fff;
    transform: translateY(-2px);
}

@media (max-width: 991px) {
    .brand-logo {
        width: 128px;
    }

    .hero-section {
        padding-top: 130px;
    }

    .hero-highlights {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 575px) {
    .section-padding {
        padding: 72px 0;
    }

    .hero-section h1 {
        font-size: 2.35rem;
    }

    .hero-text {
        font-size: 1rem;
    }

    .hero-card,
    .service-card,
    .testimonial-card {
        padding: 24px;
    }

    .cta-box {
        padding: 42px 22px;
        border-radius: 24px;
    }
}