:root {
    color-scheme: dark;
    --bg: #090b0f;
    --panel: #121923;
    --panel-2: #172231;
    --line: #273545;
    --text: #f7f9fc;
    --muted: #9aa8b7;
    --blue: #62a8ff;
    --cyan: #28d7d2;
    --green: #67dc91;
    --amber: #f3bd54;
    --violet: #c4a5ff;
    --shadow: 0 18px 54px rgba(0, 0, 0, 0.36);
}

* {
    box-sizing: border-box;
}

body {
    min-height: 100dvh;
    margin: 0;
    background:
        linear-gradient(180deg, rgba(98, 168, 255, 0.1), transparent 34rem),
        linear-gradient(145deg, rgba(40, 215, 210, 0.08), transparent 40rem),
        var(--bg);
    color: var(--text);
    font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
    letter-spacing: 0;
}

a {
    color: inherit;
}

.site-header {
    position: sticky;
    top: 0;
    z-index: 50;
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 12px clamp(14px, 3vw, 30px);
    border-bottom: 1px solid var(--line);
    background: rgba(9, 11, 15, 0.9);
    backdrop-filter: blur(16px);
}

.brand {
    font-size: 1rem;
    font-weight: 900;
    text-decoration: none;
}

nav {
    display: flex;
    gap: 6px;
}

nav a {
    min-height: 36px;
    padding: 8px 10px;
    border: 1px solid transparent;
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 800;
    text-decoration: none;
}

nav a:hover {
    border-color: var(--line);
    color: var(--text);
}

main {
    width: min(1120px, 100%);
    margin: 0 auto;
    padding: 18px clamp(12px, 3vw, 28px) 0;
}

.hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 430px);
    align-items: center;
    gap: clamp(20px, 5vw, 58px);
    min-height: calc(100dvh - 78px);
    padding: clamp(28px, 6vw, 70px) 0;
}

.eyebrow {
    margin: 0 0 12px;
    color: var(--cyan);
    font-size: 0.84rem;
    font-weight: 900;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(3.1rem, 12vw, 7rem);
    line-height: 0.92;
    letter-spacing: 0;
}

.tagline {
    max-width: 690px;
    margin: 18px 0 0;
    color: #c7d1dc;
    font-size: clamp(1rem, 2.5vw, 1.34rem);
    line-height: 1.5;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 24px;
}

.primary-action,
.secondary-action {
    display: inline-grid;
    min-height: 46px;
    place-items: center;
    border-radius: 8px;
    padding: 0 16px;
    font-weight: 900;
    text-decoration: none;
}

.primary-action {
    background: var(--green);
    color: #06100a;
}

.secondary-action {
    border: 1px solid var(--line);
    background: #132031;
}

.instrument-preview {
    display: grid;
    gap: 10px;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.01)), var(--panel);
    box-shadow: var(--shadow);
}

.preview-speed,
.preview-map,
.preview-row {
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #0c1219;
}

.preview-speed {
    display: grid;
    place-items: center;
    min-height: 188px;
}

.preview-speed span {
    align-self: end;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 900;
}

.preview-speed strong {
    color: var(--cyan);
    font-size: clamp(4rem, 14vw, 7.2rem);
    line-height: 0.86;
}

.preview-speed small {
    align-self: start;
    color: var(--cyan);
    font-weight: 900;
}

.preview-map {
    position: relative;
    overflow: hidden;
    min-height: 170px;
    background:
        linear-gradient(90deg, transparent 49%, rgba(255, 255, 255, 0.06) 50%, transparent 51%),
        linear-gradient(0deg, transparent 49%, rgba(255, 255, 255, 0.06) 50%, transparent 51%),
        #101a23;
    background-size: 46px 46px;
}

.preview-map span,
.preview-map i {
    position: absolute;
    display: block;
}

.route-a,
.route-b,
.route-c {
    height: 5px;
    border-radius: 8px;
    background: var(--blue);
    transform-origin: left center;
}

.route-a {
    left: 28px;
    top: 112px;
    width: 150px;
    transform: rotate(-18deg);
}

.route-b {
    left: 160px;
    top: 66px;
    width: 112px;
    background: var(--cyan);
    transform: rotate(24deg);
}

.route-c {
    left: 250px;
    top: 112px;
    width: 90px;
    background: var(--violet);
    transform: rotate(-30deg);
}

.preview-map i {
    left: 52%;
    top: 48%;
    width: 24px;
    height: 24px;
    border: 3px solid #fff;
    border-radius: 50%;
    background: var(--amber);
    box-shadow: 0 0 0 6px rgba(243, 189, 84, 0.2);
}

.preview-row {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    padding: 8px;
}

.preview-row span {
    min-width: 0;
    padding: 8px;
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 900;
}

.preview-row strong {
    color: var(--text);
    font-size: 1.15rem;
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    padding-bottom: 18px;
}

.tool-card {
    display: grid;
    align-content: start;
    min-height: 220px;
    gap: 10px;
    padding: 18px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: var(--panel);
    text-decoration: none;
}

.tool-card:hover {
    border-color: rgba(98, 168, 255, 0.7);
    transform: translateY(-2px);
}

.tool-card span {
    width: fit-content;
    border-radius: 8px;
    padding: 5px 8px;
    color: #06100a;
    background: var(--green);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.tool-card.flight span {
    background: var(--cyan);
}

.tool-card.share span {
    background: var(--amber);
}

.tool-card h2 {
    margin: 0;
    font-size: 1.35rem;
}

.tool-card p {
    margin: 0;
    color: #c4ced9;
    line-height: 1.52;
}

.feature-band {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 12px;
    padding: 18px 0 40px;
}

.feature-band div {
    min-height: 132px;
    padding: 16px;
    border: 1px solid var(--line);
    border-radius: 8px;
    background: #0d141c;
}

.feature-band span {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 900;
    text-transform: uppercase;
}

.feature-band strong {
    display: block;
    margin-top: 10px;
    font-size: 1.08rem;
    line-height: 1.38;
}

footer {
    display: flex;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
    padding: 26px 16px;
    border-top: 1px solid var(--line);
    color: var(--muted);
}

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

#siteToast {
    position: fixed;
    z-index: 2100;
    left: 50%;
    top: max(12px, env(safe-area-inset-top));
    width: min(420px, calc(100% - 24px));
    transform: translate(-50%, -12px);
    padding: 10px 12px;
    border: 1px solid rgba(98, 168, 255, 0.45);
    border-radius: 8px;
    background: rgba(8, 14, 19, 0.94);
    color: var(--text);
    font-size: 0.84rem;
    font-weight: 800;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.18s ease, transform 0.18s ease;
}

#siteToast.show {
    opacity: 1;
    transform: translate(-50%, 0);
}

@media (max-width: 820px) {
    .hero {
        grid-template-columns: 1fr;
        min-height: auto;
        padding-top: 34px;
    }

    .instrument-preview {
        max-width: 520px;
    }

    .tool-grid,
    .feature-band {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    .site-header {
        grid-template-columns: 1fr;
        align-items: start;
    }

    nav {
        width: 100%;
        display: grid;
        grid-template-columns: repeat(3, 1fr);
    }

    nav a {
        display: grid;
        place-items: center;
        border-color: var(--line);
    }

    .hero-actions {
        display: grid;
    }

    .primary-action,
    .secondary-action {
        width: 100%;
    }
}