:root {
    --ink: #23282f;
    --panel: #fffdf7;
    --accent: #d98324;
    --accent-dark: #a75f13;
    --line: #e4dcc9;
    --muted: #6b6f76;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    background: linear-gradient(160deg, #f6f1e4 0%, #e9f0e4 100%);
    color: var(--ink);
    font: 16px/1.5 "DejaVu Sans", "Noto Sans", sans-serif;
}

main.card {
    width: 100%;
    max-width: 560px;
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 28px 30px 32px;
    box-shadow: 0 18px 40px rgba(35, 40, 47, 0.12);
}

h1 {
    margin: 0 0 8px;
    font-size: 26px;
    letter-spacing: 0.2px;
}

h2 {
    margin: 26px 0 8px;
    font-size: 19px;
}

p {
    margin: 0 0 14px;
}

.muted {
    color: var(--muted);
    font-size: 14px;
}

.error {
    margin: 0 0 16px;
    padding: 10px 12px;
    border-left: 4px solid #b3261e;
    background: #fdecea;
    color: #611a15;
    font-size: 14px;
}

label {
    display: block;
    margin: 14px 0 6px;
    font-weight: 700;
    font-size: 14px;
}

input {
    width: 100%;
    padding: 11px 12px;
    border: 1px solid var(--line);
    border-radius: 10px;
    background: #fff;
    font: inherit;
}

input:focus {
    outline: 3px solid rgba(217, 131, 36, 0.35);
    outline-offset: 1px;
    border-color: var(--accent);
}

button, a.button {
    display: inline-block;
    margin-top: 20px;
    padding: 12px 18px;
    border: 0;
    border-radius: 10px;
    background: var(--accent);
    color: #fff;
    font: inherit;
    font-weight: 700;
    text-decoration: none;
    cursor: pointer;
}

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

ul {
    margin: 0 0 14px;
    padding-left: 20px;
}

li {
    margin-bottom: 6px;
}

code {
    background: #f1ece0;
    padding: 2px 6px;
    border-radius: 6px;
    font-family: "DejaVu Sans Mono", monospace;
    font-size: 14px;
}