:root {
    color-scheme: light;
    --bg: #f8fafc;
    --panel: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}
* {
    box-sizing: border-box;
}
body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg);
    color: var(--text);
    font-family: Arial, sans-serif;
}
main {
    width: min(90vw, 680px);
    padding: 32px 20px;
    text-align: center;
}
h1 {
    margin: 0 0 28px;
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: 0.02em;
}
form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    align-items: center;
}
.search-box {
    width: 100%;
    padding: 16px 18px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel);
    color: var(--text);
    font-size: 1rem;
    outline: none;
    box-shadow: var(--shadow);
}
.search-box:focus {
    border-color: #94a3b8;
}
.search-button {
    padding: 12px 22px;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--panel);
    color: var(--text);
    font-size: 0.95rem;
    cursor: pointer;
    box-shadow: var(--shadow);
    transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.search-button:hover {
    transform: translateY(-1px);
}
.search-button:active {
    transform: translateY(0);
}
.hint {
    margin-top: 14px;
    color: var(--muted);
    font-size: 0.9rem;
}