:root {
    --bg: #f4f7f8;
    --text: #142028;
    --muted: #4a5d66;
    --primary: #0f6c78;
    --primary-dark: #084b53;
    --accent: #f2a900;
    --surface: #ffffff;
    --border: #d7e1e5;
    --shadow: 0 14px 38px rgba(20, 32, 40, 0.12);
    --radius: 14px;
    --container: 1180px;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
    font-family: 'Manrope', sans-serif;
    color: var(--text);
    background: radial-gradient(circle at top right, #ddeaf0 0, var(--bg) 52%);
    line-height: 1.6;
}

h1, h2, h3, h4 { font-family: 'Sora', sans-serif; line-height: 1.2; margin: 0 0 .65rem; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
.container { width: min(100% - 2rem, var(--container)); margin-inline: auto; }
.section { padding: 5rem 0; }
.eyebrow { color: var(--primary); font-weight: 700; text-transform: uppercase; letter-spacing: .08em; font-size: .78rem; margin-bottom: .5rem; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;
    padding: .8rem 0;
    transition: background .3s ease, box-shadow .3s ease;
}
.site-header.is-solid {
    background: rgba(255,255,255,.95);
    backdrop-filter: blur(6px);
    box-shadow: 0 8px 20px rgba(0,0,0,.08);
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.logo { font-family: 'Sora', sans-serif; font-weight: 800; font-size: 1.2rem; height: auto; width: 200px;}
.logo span { color: var(--primary); }
.nav-menu { display: flex; align-items: center; gap: 1.25rem; font-weight: 600; }
.menu-toggle {
    display: none; border: 0; background: transparent; cursor: pointer; padding: .2rem;
}
.menu-toggle span { display: block; width: 24px; height: 2px; background: var(--text); margin: 5px 0; transition: transform .2s ease; }
.nav-backdrop {
    display: none;
    border: 0;
    background: rgba(8, 21, 28, 0.56);
}

.hero { position: relative; min-height: 92vh; display: grid; align-items: center; overflow: hidden; }
.hero-bg { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; }
.hero-overlay {display: flex; align-items: center; position: absolute; inset: 0; background: linear-gradient(95deg, rgba(6,12,16,.82) 0%, rgba(8,20,27,.74) 38%, rgba(9,34,43,.52) 62%, rgba(10,46,58,.36) 100%); }
.hero-content { position: relative; color: #f4f8fa; z-index: 2; max-width: 760px; text-shadow: 0 2px 18px rgba(0,0,0,.45); }
.hero h1 { font-size: clamp(2rem, 5vw, 3.8rem); margin-bottom: 1rem; }
.hero p { font-size: clamp(1rem, 2.4vw, 1.2rem); color: #e8f2f5; max-width: 62ch; }
.hero-actions { display: flex; gap: .8rem; margin-top: 1.3rem; flex-wrap: wrap; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: var(--accent);
    color: #13242d;
    border: 2px solid transparent;
    border-radius: 999px;
    padding: .72rem 1.2rem;
    font-weight: 800;
    transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: var(--shadow); background: #ffbf37; }
.btn-outline { background: transparent; border-color: #d9edf2; color: #f2f8fb; }
.btn-sm { padding: .55rem .95rem; font-size: .9rem; }

.split-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 2.2rem; align-items: center; }
.split-grid.reverse > :first-child { order: 1; }
.rounded-img { border-radius: var(--radius); box-shadow: var(--shadow); }

.stats-grid { display: grid; grid-template-columns: repeat(2, minmax(0,1fr)); gap: .9rem; margin-top: 1.2rem; }
.stat-card {
    padding: 1.2rem;
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    transition: transform .25s ease, box-shadow .25s ease;
}
.stat-card:hover { transform: translateY(-5px); box-shadow: var(--shadow); }
.stat-card h3 { color: var(--primary); font-size: 1.8rem; margin: 0; }

.card-grid { display: grid; gap: 1.1rem; }
.card-grid.two { grid-template-columns: repeat(2, minmax(0,1fr)); }
.card-grid.three { grid-template-columns: repeat(3, minmax(0,1fr)); }
.card-grid.four { grid-template-columns: repeat(4, minmax(0,1fr)); }

.info-card, .product-card, .aggregate-card {
    border-radius: var(--radius);
    background: var(--surface);
    border: 1px solid var(--border);
    padding: 1.05rem;
    transition: transform .25s ease, box-shadow .25s ease;
}
.info-card:hover, .product-card:hover, .aggregate-card:hover { transform: translateY(-6px); box-shadow: var(--shadow); }
.icon {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    display: inline-grid;
    place-items: center;
    background: #d8edf1;
    color: var(--primary-dark);
    font-weight: 800;
    margin-bottom: .6rem;
}

.feature-list { margin: 0; padding-left: 1rem; color: var(--muted); }
.feature-list li { margin-bottom: .45rem; }
.product-card img, .aggregate-card img {
    border-radius: 10px;
    height: 180px;
    width: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.product-card:hover img, .aggregate-card:hover img { transform: scale(1.05); }

.process-flow {
    display: grid;
    grid-template-columns: repeat(3, minmax(0,1fr));
    gap: 1rem;
    position: relative;
    margin-top: 1.2rem;
}
.process-flow::before {
    content: '';
    position: absolute;
    left: 8%;
    right: 8%;
    top: 24px;
    border-top: 2px dashed #9dc0c8;
    z-index: 0;
}
.process-flow article {
    position: relative;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1rem;
    z-index: 1;
}
.process-flow span {
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--primary);
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 700;
    margin-bottom: .7rem;
}

.contact-grid { align-items: start; }
.contact-form {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.1rem;
    box-shadow: var(--shadow);
}
label { display: grid; gap: .35rem; margin-bottom: .7rem; font-weight: 600; }
input, textarea {
    width: 100%;
    border: 1px solid #b5c8cf;
    border-radius: 10px;
    padding: .7rem .8rem;
    font-family: inherit;
    font-size: 1rem;
}
input:focus, textarea:focus { outline: 2px solid #a6d6de; border-color: #7fb9c4; }
.input-grid { display: grid; gap: .7rem; grid-template-columns: repeat(2,minmax(0,1fr)); }
.contact-details p { margin: .35rem 0; color: var(--muted); }

.flash {
    width: min(100% - 2rem, var(--container));
    margin: .65rem auto;
    border-radius: 10px;
    padding: .8rem .95rem;
    font-weight: 700;
}
.flash-success { background: #def5e8; color: #145a3c; border: 1px solid #95d4b1; }
.flash-error { background: #fde7e7; color: #7d1a1a; border: 1px solid #efb2b2; }

.site-footer { background: #11222b; color: #d2e1e8; padding-top: 3rem; }
.footer-grid { display: grid; gap: 1rem; grid-template-columns: repeat(3,minmax(0,1fr)); }
.site-footer a { display: block; margin-bottom: .4rem; color: #d2e1e8; }
.copyright { text-align: center; border-top: 1px solid #27414c; margin-top: 1.5rem; padding: .85rem 0; font-size: .9rem; }

.scroll-top, .whatsapp-float {
    position: fixed;
    right: 1rem;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    border: 0;
    cursor: pointer;
    display: grid;
    place-items: center;
    color: #fff;
    font-weight: 800;
    z-index: 900;
}
.scroll-top { bottom: 1rem; background: var(--primary-dark); opacity: 0; pointer-events: none; transition: .25s; }
.scroll-top.show { opacity: 1; pointer-events: auto; }
.whatsapp-float { bottom: 4.3rem; background: #20b15a; }

.loader {
    position: fixed;
    inset: 0;
    background: #0f1f27;
    display: grid;
    place-items: center;
    color: #fff;
    z-index: 2000;
    transition: opacity .35s ease, visibility .35s ease;
}
.loader.hidden { opacity: 0; visibility: hidden; }
.loader::after {
    content: '';
    width: 46px;
    height: 46px;
    border: 4px solid #ffffff40;
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 1024px) {
    .card-grid.four { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .card-grid.three { grid-template-columns: repeat(2, minmax(0,1fr)); }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
    .section { padding: 3.8rem 0; }
    .menu-toggle { display: block; }
    .site-header { z-index: 1200; }
    .nav-menu {
        position: fixed;
        top: 0;
        right: 0;
        width: min(84vw, 340px);
        height: 100%;
        background: #fff;
        border-radius: 0;
        padding: 5rem 1.1rem 1.2rem;
        box-shadow: var(--shadow);
        flex-direction: column;
        align-items: flex-start;
        gap: .8rem;
        opacity: 1;
        pointer-events: none;
        transform: translateX(105%);
        transition: transform .28s ease;
        z-index: 1202;
    }
    .nav-menu.open { pointer-events: auto; transform: translateX(0); }
    .nav-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        z-index: 1201;
        opacity: 0;
        pointer-events: none;
        transition: opacity .25s ease;
    }
    .nav-backdrop.open {
        opacity: 1;
        pointer-events: auto;
    }
    .split-grid,
    .card-grid.two,
    .card-grid.three,
    .card-grid.four,
    .process-flow,
    .input-grid,
    .footer-grid {
        grid-template-columns: 1fr;
    }
    .process-flow::before { display: none; }
    .hero { min-height: 84vh; }
}