:root {
    --bg: #0f1115;
    --panel: #141823;
    --text: #e6e7ea;
    --muted: #a6abb7;
    --accent: #86a2ff;
    --accent-dim: #6b7fcc;
    --shadow: 0 6px 30px rgba(0, 0, 0, 0.35);
}

* {
    box-sizing: border-box;
}
html {
    height: 100%;
}

body {
    margin: 0;
    height: 100vh;
    overflow: hidden;
    background:
        radial-gradient(1200px 800px at 80% 0%, #10131b, var(--bg) 70%)
            no-repeat,
        var(--bg);
    color: var(--text);
    font:
        16px/1.6 ui-sans-serif,
        system-ui,
        -apple-system,
        Segoe UI,
        Roboto,
        "Helvetica Neue",
        Arial,
        "Noto Sans",
        "Apple Color Emoji",
        "Segoe UI Emoji";
}

.container {
    width: min(800px, 92vw);
    height: 100vh;
    margin: 0 auto;
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
}

.site-header {
    margin-top: 56px;
    margin-bottom: 24px;
    text-align: center;
}

.site-title {
    margin: 0 0 6px;
    font-size: clamp(28px, 6vw, 40px);
    letter-spacing: 0.2px;
    background: linear-gradient(135deg, var(--accent), var(--accent-dim));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 1px, 1px);
    white-space: nowrap;
    border: 0;
}

.content {
    text-align: center;
    padding: 40px 0;
}

.message {
    margin: 40px 0;
    text-align: center;
    width: 100%;
    max-width: 600px;
}

.message h2 {
    margin: 0 0 20px;
    font-size: clamp(24px, 4vw, 32px);
    color: var(--text);
    font-weight: 600;
}

.message p {
    margin: 15px 0;
    color: var(--muted);
    font-size: 1.05rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}