* {
    box-sizing: border-box;
}

:root {
    color-scheme: light;
    --ink: #1f2933;
    --muted: #66717d;
    --line: #d9dee3;
    --accent: #b42318;
    --accent-dark: #8f1d14;
    --paper: #ffffff;
    --background: #f3f5f6;
}

html, body {
    min-height: 100%;
}

body {
    margin: 0;
    background: var(--background);
    color: var(--ink);
    font-family: Arial, Helvetica, sans-serif;
}

.page-shell {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 28px 18px;
}

.card {
    width: min(100%, 500px);
    background: var(--paper);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 14px 36px rgba(31, 41, 51, 0.08);
    padding: 42px 44px 38px;
}

.brand {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 42px;
    height: 42px;
    margin-bottom: 22px;
    border-radius: 7px;
    background: var(--accent);
    color: #fff;
    font-weight: 700;
    letter-spacing: 0.03em;
}

h1 {
    margin: 0 0 13px;
    font-family: Georgia, 'Times New Roman', serif;
    font-size: clamp(1.8rem, 4vw, 2.35rem);
    line-height: 1.12;
    font-weight: 700;
}

.intro {
    margin: 0 0 28px;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.55;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--ink);
    font-size: 0.92rem;
    font-weight: 700;
}

input[type="email"] {
    width: 100%;
    min-height: 48px;
    border: 1px solid #aeb7c0;
    border-radius: 5px;
    padding: 0 13px;
    color: var(--ink);
    background: #fff;
    font: inherit;
    font-size: 1rem;
}

input[type="email"]:focus {
    outline: 3px solid rgba(180, 35, 24, 0.16);
    border-color: var(--accent);
}

button {
    width: 100%;
    min-height: 48px;
    margin-top: 14px;
    border: 0;
    border-radius: 5px;
    padding: 0 16px;
    background: var(--accent);
    color: #fff;
    cursor: pointer;
    font: inherit;
    font-weight: 700;
}

button:hover {
    background: var(--accent-dark);
}

.notice {
    min-height: 24px;
    margin: 17px 0 0;
    color: var(--accent);
    font-weight: 700;
}

.footer-note {
    margin: 28px 0 0;
    color: var(--muted);
    font-size: 0.78rem;
    line-height: 1.45;
}

@media (max-width: 560px) {
    .card {
        padding: 32px 24px 28px;
    }
}