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

html {
    scroll-behavior: smooth;
}

body {
    font-family: Arial, Helvetica, sans-serif;
    background: #f5f7fa;
    color: #101722;
    line-height: 1.65;
}

a {
    text-decoration: none;
    color: inherit;
}

.container {
    width: min(1180px, 92%);
    margin: auto;
}


/* HEADER */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1000;

    background: rgba(4, 13, 24, .97);

    border-bottom: 1px solid #20394f;

    backdrop-filter: blur(10px);
}

.navigation {
    min-height: 74px;

    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    color: white;

    font-size: 15px;
    font-weight: 700;

    letter-spacing: 3px;
}

.logo span {
    color: #13b4ed;
}

nav {
    display: flex;
    gap: 28px;

    color: #91a5b8;

    font-size: 12px;
}

nav a:hover,
nav .active {
    color: #13b4ed;
}


/* HERO */

.hero {
    min-height: 650px;

    display: flex;
    align-items: center;
}

.hero-grid {
    display: grid;

    grid-template-columns:
        1.15fr .85fr;

    gap: 80px;

    align-items: center;
}

.eyebrow {
    color: #13b4ed;

    font-size: 10px;

    font-weight: 700;

    letter-spacing: 4px;

    margin-bottom: 20px;
}

.hero h1 {
    font-size: clamp(65px, 9vw, 110px);

    line-height: .85;

    letter-spacing: -7px;

    margin-bottom: 35px;
}

.hero h1 span {
    display: block;
    color: #13b4ed;
}

.hero-text {
    max-width: 680px;

    color: #687787;

    font-size: 18px;
}

.tags {
    display: flex;
    flex-wrap: wrap;

    gap: 7px;

    margin-top: 28px;
}

.tags span {
    background: white;

    border: 1px solid #dce3e9;

    padding: 7px 11px;

    border-radius: 20px;

    font-size: 9px;

    font-weight: 700;
}


/* HERO PANEL */

.hero-panel {
    min-height: 390px;

    padding: 38px;

    background: #06111f;

    color: white;

    border: 1px solid #294257;

    display: flex;

    flex-direction: column;

    justify-content: space-between;

    box-shadow:
        20px 20px 0 rgba(19,180,237,.12);
}

.number {
    color: #13b4ed;

    font-size: 100px;

    line-height: 1;

    font-weight: 700;
}

.line {
    border-top: 1px solid #294257;
}

.hero-panel p {
    color: #8196a9;

    font-size: 10px;

    letter-spacing: 3px;
}

.hero-panel strong {
    font-size: 30px;

    line-height: 1.15;
}


/* SECTIONS */

.section {
    padding: 110px 0;

    border-top: 1px solid #dce3e9;
}

.two-column {
    display: grid;

    grid-template-columns: .8fr 1.2fr;

    gap: 80px;

    align-items: start;
}

h2 {
    font-size: clamp(45px, 6vw, 75px);

    line-height: .95;

    letter-spacing: -4px;
}

.two-column p {
    color: #687787;

    margin-bottom: 20px;

    font-size: 16px;
}


/* DARK */

.dark-section {
    padding: 110px 0;

    background: #06111f;

    color: white;
}

.dark-section h2 {
    color: white;
}


/* DATA GRID */

.data-grid {
    display: grid;

    grid-template-columns:
        repeat(4, 1fr);

    gap: 12px;

    margin-top: 55px;
}

.data-card {
    padding: 28px;

    background: #0b1b2b;

    border: 1px solid #294257;
}

.data-card span {
    color: #13b4ed;

    font-size: 10px;
}

.data-card h3 {
    margin-top: 30px;

    font-size: 21px;
}

.data-card p {
    margin-top: 15px;

    color: #91a5b8;

    font-size: 13px;
}


/* SENSOR */

.sensor-layout {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 12px;

    margin-top: 50px;
}

.sensor-layout div {
    padding: 30px;

    background: #eaf2f6;

    border-left: 4px solid #13b4ed;

    font-size: 12px;

    font-weight: 700;
}


/* MAPPING */

.mapping-flow {
    margin-top: 55px;

    display: flex;

    align-items: stretch;

    gap: 12px;

    overflow-x: auto;
}

.mapping-flow > div {
    min-width: 180px;

    padding: 30px;

    background: #0b1b2b;

    border: 1px solid #294257;

    font-weight: 700;
}

.mapping-flow small {
    display: block;

    margin-top: 10px;

    color: #8196a9;

    font-size: 10px;

    font-weight: normal;
}

.mapping-flow > span {
    display: flex;

    align-items: center;

    color: #13b4ed;

    font-size: 20px;
}


/* NDVI */

.ndvi-box {
    margin-top: 55px;

    padding: 45px;

    display: grid;

    grid-template-columns: 250px 1fr;

    gap: 50px;

    background: #eaf2f6;

    border-left: 4px solid #13b4ed;
}

.ndvi-number {
    color: #13b4ed;

    font-size: 65px;

    font-weight: 700;

    line-height: 1;
}

.ndvi-box h3 {
    font-size: 25px;

    margin-bottom: 12px;
}

.ndvi-box p {
    color: #687787;
}


/* WORKFLOW */

.workflow {
    margin-top: 55px;

    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 12px;
}

.workflow div {
    padding: 25px;

    background: #0b1b2b;

    border: 1px solid #294257;

    font-size: 13px;

    font-weight: 700;
}

.workflow span {
    display: block;

    color: #13b4ed;

    font-size: 10px;

    margin-bottom: 15px;
}


/* CONTRIBUTION */

.contribution {
    padding: 110px 0;

    background: #eaf2f6;
}

.contribution-grid {
    display: grid;

    grid-template-columns:
        repeat(3, 1fr);

    gap: 12px;

    margin-top: 45px;
}

.contribution-grid div {
    padding: 25px;

    background: white;

    border: 1px solid #dce3e9;

    font-size: 12px;

    font-weight: 700;
}


/* NAVIGATION */

.project-navigation {
    padding: 35px 0;

    background: white;

    border-top: 1px solid #dce3e9;
}

.navigation-grid {
    display: flex;

    justify-content: space-between;

    color: #087da6;

    font-size: 12px;

    font-weight: 700;
}


/* FOOTER */

footer {
    padding: 30px 0;

    background: #030b14;

    color: #71879a;

    font-size: 10px;
}

footer .container {
    display: flex;

    justify-content: space-between;
}


/* RESPONSIVE */

@media(max-width: 900px) {

    .hero-grid,
    .two-column {
        grid-template-columns: 1fr;
    }

    .data-grid {
        grid-template-columns: 1fr 1fr;
    }

    .workflow {
        grid-template-columns: 1fr 1fr;
    }

}

@media(max-width: 650px) {

    nav {
        display: none;
    }

    .hero {
        padding: 80px 0;
    }

    .hero h1 {
        font-size: 65px;
    }

    .data-grid,
    .sensor-layout,
    .workflow,
    .contribution-grid {
        grid-template-columns: 1fr;
    }

    .mapping-flow {
        flex-direction: column;
    }

    .mapping-flow > span {
        justify-content: center;

        transform: rotate(90deg);
    }

    .ndvi-box {
        grid-template-columns: 1fr;
    }

    .navigation-grid,
    footer .container {
        flex-direction: column;

        gap: 15px;
    }

}