/* Check ID — shared design tokens + base styles.
   Used by the token landing pages (/invite, /device, /auth/magic). The marketing
   pages still carry their own inline styles; migrate them here over time. */

:root {
    --color-text-primary: #1d1d1f;
    --color-text-secondary: #6e6e73;
    --color-bg-primary: #fff;
    --color-bg-secondary: #f5f5f7;
    --color-accent: #0071e3;
    --color-accent-hover: #0077ed;
    --color-border: rgba(0, 0, 0, 0.08);
    --color-card-bg: #fff;
    --color-card-border: rgba(0, 0, 0, 0.06);
    --color-success: #248a3d;
}

@media (prefers-color-scheme: dark) {
    :root {
        --color-text-primary: #f5f5f7;
        --color-text-secondary: #86868b;
        --color-bg-primary: #000;
        --color-bg-secondary: #1d1d1f;
        --color-accent: #2997ff;
        --color-accent-hover: #2da5ff;
        --color-border: rgba(255, 255, 255, 0.08);
        --color-card-bg: #1d1d1f;
        --color-card-border: rgba(255, 255, 255, 0.08);
        --color-success: #30d158;
    }
}

* {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    box-sizing: border-box;
}

html, body { margin: 0; padding: 0; }

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'SF Pro Display', 'Helvetica Neue', Helvetica, Arial, sans-serif;
    background-color: var(--color-bg-primary);
    color: var(--color-text-primary);
    line-height: 1.47059;
    letter-spacing: -0.022em;
}

/* Centered single-purpose landing layout */
.landing {
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.landing-card {
    width: 100%;
    max-width: 420px;
    background: var(--color-card-bg);
    border: 1px solid var(--color-card-border);
    border-radius: 20px;
    padding: 40px 28px;
    text-align: center;
    box-shadow: 0 4px 24px rgba(0, 0, 0, 0.06);
}

.landing-icon {
    width: 72px;
    height: 72px;
    border-radius: 18px;
}

.landing h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 20px 0 10px;
    letter-spacing: -0.02em;
}

.landing p {
    color: var(--color-text-secondary);
    font-size: 1.0625rem;
    margin: 0 auto 8px;
    max-width: 34ch;
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    padding: 14px 20px;
    margin-top: 16px;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 500;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: background-color 0.2s ease, color 0.2s ease;
}

.btn-primary { background: var(--color-accent); color: #fff; }
.btn-primary:hover { background: var(--color-accent-hover); }

.muted {
    font-size: 0.875rem;
    color: var(--color-text-secondary);
    margin-top: 22px;
}

.muted a { color: var(--color-accent); text-decoration: none; }

/* Light/dark app-icon swap (paired with a tiny inline script) */
.app-icon-dark { display: none; }
@media (prefers-color-scheme: dark) {
    .app-icon-light { display: none; }
    .app-icon-dark { display: inline-block; }
}