@charset "utf-8";

:root {
    --ink: #132129;
    --muted: #60707a;
    --paper: #f7fbfc;
    --panel: #ffffff;
    --line: rgba(19, 33, 41, .12);
    --teal: #0b6f77;
    --teal-dark: #103447;
    --amber: #d7922c;
    --mint: #dff0ec;
    --danger: #b3261e;
    --shadow: 0 22px 70px rgba(16, 52, 71, .16);
}

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

html {
    scroll-behavior: smooth;
}

body {
    min-width: 320px;
    margin: 0;
    color: var(--ink);
    background: var(--paper);
    font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

a {
    color: inherit;
}

img {
    max-width: 100%;
    height: auto;
}

.skip-link,
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    overflow: hidden;
    clip: rect(0 0 0 0);
    white-space: nowrap;
}

.skip-link:focus {
    z-index: 20;
    top: 1rem;
    left: 1rem;
    width: auto;
    height: auto;
    padding: .75rem 1rem;
    clip: auto;
    color: #fff;
    background: var(--teal-dark);
    border-radius: 6px;
}

.site-header {
    position: sticky;
    z-index: 10;
    top: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(247, 251, 252, .9);
    backdrop-filter: blur(16px);
}

.header-inner,
.footer-inner,
main>section {
    width: min(1400px, calc(100% - 32px));
    margin: 0 auto;
}

.header-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 1rem;
    align-items: center;
    min-height: 76px;
}

.brand {
    display: inline-flex;
    gap: .75rem;
    align-items: center;
    text-decoration: none;
}

.brand img {
    width: 48px;
}

.brand span {
    display: grid;
    line-height: 1.1;
}

.brand strong,
h1,
h2,
h3 {
    font-family: "Exo 2", Inter, sans-serif;
}

.brand small {
    color: var(--muted);
}

.site-nav {
    display: flex;
    gap: .25rem;
    justify-content: center;
}

.site-nav a {
    padding: .65rem .9rem;
    border-radius: 6px;
    color: var(--muted);
    font-weight: 700;
    text-decoration: none;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
    color: var(--teal-dark);
    background: var(--mint);
}

.header-actions {
    display: flex;
    gap: .75rem;
    align-items: center;
}

.language-switcher select {
    min-width: 132px;
    padding: .62rem 2rem .62rem .8rem;
    color: var(--teal-dark);
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
    font-weight: 700;
}

.menu-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border: 1px solid var(--line);
    border-radius: 6px;
    background: #fff;
}

.menu-toggle-line {
    display: block;
    width: 18px;
    height: 2px;
    margin: 4px auto;
    background: var(--teal-dark);
}

main {
    overflow: hidden;
}

.hero-section {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(320px, .75fr);
    gap: clamp(2rem, 6vw, 5rem);
    align-items: center;
    min-height: calc(100vh - 76px);
    padding: 5rem 0;
}

.hero-section::before {
    position: absolute;
    inset: 76px 0 auto;
    z-index: -1;
    height: 76vh;
    content: "";
    background: linear-gradient(105deg, rgba(223, 240, 236, .9), rgba(247, 251, 252, .78) 48%, rgba(215, 146, 44, .16)), url("/img/hero.webp") center / cover;
}

.eyebrow {
    margin: 0 0 .8rem;
    color: var(--teal);
    font-size: .78rem;
    font-weight: 800;
    letter-spacing: .08em;
    text-transform: uppercase;
}

h1,
h2,
h3,
p {
    margin-top: 0;
}

h1 {
    max-width: 760px;
    margin-bottom: 1rem;
    color: var(--teal-dark);
    font-size: clamp(2.7rem, 8vw, 4.5rem);
    line-height: .95;
}

h2 {
    margin-bottom: .75rem;
    color: var(--teal-dark);
    font-size: clamp(2rem, 4vw, 3.1rem);
    line-height: 1.05;
}

h3 {
    color: var(--teal-dark);
    font-size: 1.25rem;
}

.lead {
    max-width: 650px;
    color: #30444f;
    font-size: 1.18rem;
    line-height: 1.7;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: .9rem;
    margin-top: 2rem;
}

.button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    padding: .8rem 1.1rem;
    border: 1px solid transparent;
    border-radius: 6px;
    font-weight: 800;
    text-decoration: none;
    cursor: pointer;
}

.button.primary {
    color: #fff;
    background: var(--teal);
}

.button.ghost {
    color: var(--teal-dark);
    border-color: var(--line);
    background: rgba(255, 255, 255, .72);
}

.signal-panel,
.login-form {
    padding: 1.25rem;
    border: 1px solid rgba(255, 255, 255, .72);
    border-radius: 8px;
    background: rgba(255, 255, 255, .82);
    box-shadow: var(--shadow);
}

.sensor-orbit {
    display: grid;
    place-items: center;
    min-height: 260px;
    border-radius: 8px;
    background: radial-gradient(circle at center, rgba(11, 111, 119, .15), transparent 36%), linear-gradient(135deg, var(--teal-dark), var(--teal));
}

.sensor-orbit img {
    width: min(170px, 45vw);
    filter: drop-shadow(0 16px 28px rgba(0, 0, 0, .22));
}

.signal-panel dl {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: .75rem;
    margin: .9rem 0 0;
}

.signal-panel dl div {
    padding: .85rem;
    border-radius: 6px;
    background: #f4f8f8;
}

dt {
    color: var(--teal-dark);
    font-size: 1.35rem;
    font-weight: 800;
}

dd {
    margin: .2rem 0 0;
    color: var(--muted);
    font-size: .82rem;
}

.feature-band,
.ownership-band,
.about-layout,
.use-cases,
.login-section,
.page-hero {
    padding: clamp(3rem, 7vw, 6rem) 0;
}

.section-heading {
    max-width: 720px;
}

.ownership-band {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 1.5rem;
    align-items: center;
    border-top: 1px solid var(--line);
    border-bottom: 1px solid var(--line);
}

.ownership-band p {
    max-width: 780px;
    color: var(--muted);
    line-height: 1.7;
}

.feature-grid,
.case-list {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
    margin-top: 1.75rem;
}

.feature-grid article,
.case-list article {
    min-height: 230px;
    padding: 1.3rem;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
}

.feature-grid span {
    color: var(--amber);
    font-weight: 900;
}

.feature-grid p,
.case-list p,
.about-copy p,
.login-copy p,
.site-footer p {
    color: var(--muted);
    line-height: 1.7;
}

.ownership-band a,
.about-copy a,
.site-footer p a {
    color: var(--teal-dark);
    font-weight: 600;
    text-decoration-thickness: 2px;
    text-underline-offset: .18em;
}

.page-hero {
    min-height: 390px;
    display: grid;
    align-items: end;
}

.about-hero {
    width: 100%;
    max-width: none;
    padding-inline: max(16px, calc((100vw - 1400px) / 2));
    color: #fff;
    background: linear-gradient(90deg, rgba(16, 52, 71, .92), rgba(16, 52, 71, .48)), url("/img/hero-about.webp") center / cover;
}

.about-hero h1,
.about-hero .lead {
    color: #fff;
}

.about-hero .eyebrow {
    color: #f0bd6b;
}

.about-layout {
    display: grid;
    grid-template-columns: 1fr .85fr;
    gap: 2rem;
    align-items: center;
}

.about-copy {
    max-width: 680px;
}

.about-image {
    margin: 0;
}

.about-image img {
    border-radius: 8px;
    box-shadow: var(--shadow);
}

.case-list {
    grid-template-columns: repeat(5, 1fr);
}

.case-list article {
    min-height: 250px;
}

.login-section {
    display: grid;
    grid-template-columns: 1fr minmax(300px, 430px);
    gap: 2rem;
    align-items: center;
    min-height: calc(100vh - 76px);
}

.login-form {
    display: grid;
    gap: .65rem;
}

.login-form label {
    color: var(--teal-dark);
    font-weight: 800;
}

.login-form input {
    width: 100%;
    min-height: 46px;
    padding: .75rem .85rem;
    border: 1px solid var(--line);
    border-radius: 6px;
    font: inherit;
}

.form-alert {
    margin: .5rem 0;
    padding: .8rem;
    color: var(--danger);
    border: 1px solid rgba(179, 38, 30, .28);
    border-radius: 6px;
    background: rgba(179, 38, 30, .08);
    font-weight: 700;
}

.not-found {
    min-height: 60vh;
    display: grid;
    align-items: center;
}

.site-footer {
    border-top: 1px solid var(--line);
    background: #fff;
}

.footer-inner {
    display: flex;
    gap: 1rem;
    align-items: center;
    justify-content: space-between;
    padding: 2rem 0;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
}

.footer-links a {
    color: var(--teal-dark);
    font-weight: 800;
    text-decoration: none;
}

@media (max-width: 920px) {
    .header-inner {
        grid-template-columns: 1fr auto;
    }

    .site-nav {
        position: absolute;
        top: 76px;
        right: 16px;
        left: 16px;
        display: none;
        flex-direction: column;
        padding: .75rem;
        border: 1px solid var(--line);
        border-radius: 8px;
        background: #fff;
        box-shadow: var(--shadow);
    }

    .site-nav[data-open] {
        display: flex;
    }

    .menu-toggle {
        display: block;
    }

    .hero-section,
    .ownership-band,
    .about-layout,
    .login-section {
        grid-template-columns: 1fr;
    }

    .feature-grid,
    .case-list {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 620px) {

    .header-inner,
    .footer-inner,
    main>section {
        width: min(100% - 24px, 1400px);
    }

    .brand small {
        display: none;
    }

    .language-switcher select {
        min-width: 112px;
        max-width: 136px;
    }

    .hero-section {
        padding: 3rem 0;
    }

    .signal-panel dl,
    .feature-grid,
    .case-list {
        grid-template-columns: 1fr;
    }

    .footer-inner {
        align-items: flex-start;
        flex-direction: column;
    }
}