:root {
    color-scheme: dark;
    --smit-bg: #080b10;
    --smit-panel: #10151d;
    --smit-panel-edge: rgba(123, 210, 255, 0.18);
    --smit-text: #f4f7fb;
    --smit-muted: #8e9aaa;
    --smit-accent: #7bd2ff;
    --smit-accent-strong: #b7ebff;
}

* {
    box-sizing: border-box;
}

html,
body {
    min-height: 100%;
    margin: 0;
    background: var(--smit-bg);
    color: var(--smit-text);
    font-family: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body {
    min-height: 100vh;
    min-height: 100dvh;
}

.smit-app-installer {
    min-height: 100vh;
    min-height: 100dvh;
    display: grid;
    place-items: center;
    padding: max(24px, env(safe-area-inset-top)) 20px max(24px, env(safe-area-inset-bottom));
    background:
        radial-gradient(circle at 50% -15%, rgba(86, 187, 236, 0.12), transparent 42%),
        linear-gradient(180deg, #0b0f15 0%, var(--smit-bg) 100%);
}

.smit-app-installer__card {
    width: min(100%, 460px);
    padding: 24px;
    border: 1px solid var(--smit-panel-edge);
    border-radius: 24px;
    background: rgba(16, 21, 29, 0.94);
    box-shadow: 0 28px 80px rgba(0, 0, 0, 0.38);
}

.smit-app-installer__brand {
    display: flex;
    min-height: 54px;
    align-items: center;
    justify-content: flex-start;
}

.smit-app-installer__core-logo {
    position: relative;
    left: -18px;
    top: -18px;
    display: block;
    width: min(190px, 48%);
    height: auto;
    max-height: 56px;
    margin-left: -3px;
    object-fit: contain;
    object-position: left center;
    opacity: 1;
    transform: none;
}

.smit-app-installer__identity {
    padding: 36px 4px 30px;
    text-align: center;
}

.smit-app-installer__icon-wrap {
    display: grid;
    width: 92px;
    height: 92px;
    margin: 0 auto 24px;
    place-items: center;
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: 22px;
    background: rgba(255, 255, 255, 0.035);
}

.smit-app-installer__icon {
    display: block;
    width: 82%;
    height: 82%;
    object-fit: contain;
    background: transparent;
}

.smit-app-installer__eyebrow {
    margin: 0 0 10px;
    color: var(--smit-accent);
    font-size: 11px;
    font-weight: 750;
    letter-spacing: 0.16em;
}

.smit-app-installer h1 {
    margin: 0;
    font-size: clamp(28px, 7vw, 36px);
    line-height: 1.08;
    letter-spacing: -0.035em;
}

.smit-app-installer__copy {
    max-width: 34ch;
    margin: 15px auto 0;
    color: var(--smit-muted);
    font-size: 15px;
    line-height: 1.55;
}

.smit-app-installer__action {
    width: 100%;
    min-height: 54px;
    border: 1px solid rgba(183, 235, 255, 0.55);
    border-radius: 14px;
    background: linear-gradient(180deg, #d8f5ff 0%, #8fdcff 100%);
    color: #061018;
    font: inherit;
    font-size: 15px;
    font-weight: 800;
    cursor: pointer;
    box-shadow: 0 12px 30px rgba(77, 184, 232, 0.12);
    transition: border-color 120ms ease, box-shadow 120ms ease, filter 120ms ease;
}

.smit-app-installer__action:hover {
    filter: brightness(1.03);
    box-shadow: 0 14px 34px rgba(77, 184, 232, 0.19);
}

.smit-app-installer__action:focus-visible {
    outline: 3px solid rgba(123, 210, 255, 0.38);
    outline-offset: 3px;
}

.smit-app-installer__help {
    margin-top: 16px;
    padding: 14px 16px;
    border: 1px solid rgba(123, 210, 255, 0.14);
    border-radius: 12px;
    background: rgba(123, 210, 255, 0.05);
    color: #cbd4df;
    font-size: 13px;
    line-height: 1.5;
}

.smit-app-installer__help strong {
    color: var(--smit-text);
}

.smit-app-installer__signature {
    margin: 18px 0 0;
    color: #647080;
    font-size: 10px;
    text-align: center;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

@media (max-width: 520px) {
    .smit-app-installer {
        padding-left: 14px;
        padding-right: 14px;
    }

    .smit-app-installer__card {
        padding: 20px;
        border-radius: 20px;
    }

    .smit-app-installer__core-logo {
        width: min(170px, 52%);
        max-height: 52px;
        margin-left: -3px;
    }

    .smit-app-installer__identity {
        padding-top: 30px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .smit-app-installer__action {
        transition: none;
    }
}