:root {
    --brand: #962a87;
    --brand-dark: #7a2170;
    --text: #1f1f23;
    --muted: #6b6b73;
    --border: #e5e5ea;
    --bg: #f5f4f7;
    --card: #ffffff;
    --ok: #047857;
    --ok-bg: #ecfdf5;
    --error: #b91c1c;
    --error-bg: #fef2f2;
    --info: #1a84ac;
    --info-bg: #f0f9fc;
    --warning: #b45309;
    --warning-bg: #fffbeb;
}

@media (prefers-color-scheme: dark) {
    :root {
        --text: #ececf1;
        --muted: #a1a1aa;
        --border: #34343b;
        --bg: #141416;
        --card: #1e1e22;
        --ok: #6ee7b7;
        --ok-bg: rgba(16, 185, 129, 0.12);
        --error: #fca5a5;
        --error-bg: rgba(239, 68, 68, 0.12);
        --info: #7fc9e3;
        --info-bg: rgba(26, 132, 172, 0.15);
        --warning: #fcd34d;
        --warning-bg: rgba(245, 158, 11, 0.12);
    }
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    line-height: 1.5;
}

.page {
    max-width: 460px;
    margin: 0 auto;
    padding: 24px 16px 40px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
}

.brand__logo {
    width: 48px;
    height: 48px;
    object-fit: contain;
}

.brand__title {
    font-weight: 700;
    font-size: 1.1rem;
}

.brand__sub,
.muted {
    color: var(--muted);
    font-size: 0.9rem;
}

.card {
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 22px 20px;
}

h1 {
    margin: 0 0 8px;
    font-size: 1.35rem;
}

h2 {
    margin: 0 0 4px;
    font-size: 1.15rem;
}

.card + .card {
    margin-top: 14px;
}

.form {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 18px;
}

.form label span {
    display: block;
    margin-bottom: 4px;
    font-size: 0.85rem;
    color: var(--muted);
}

.form input {
    width: 100%;
    height: 44px;
    padding: 0 12px;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: transparent;
    color: var(--text);
    font: inherit;
}

.form input:focus {
    outline: 2px solid var(--brand);
    outline-offset: 1px;
}

.form button {
    height: 46px;
    border: none;
    border-radius: 10px;
    background: var(--brand);
    color: #fff;
    font: inherit;
    font-weight: 600;
    cursor: pointer;
}

.form button:hover {
    background: var(--brand-dark);
}

.summary {
    display: grid;
    grid-template-columns: max-content 1fr;
    gap: 6px 16px;
    margin: 16px 0;
}

.summary dt {
    color: var(--muted);
}

.summary dd {
    margin: 0;
    word-break: break-all;
}

.due {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    padding: 14px 16px;
    border-radius: 12px;
    background: var(--brand);
    color: #fff;
}

.due strong {
    font-size: 1.5rem;
}

.qr {
    display: flex;
    justify-content: center;
    margin: 18px auto 6px;
    padding: 12px;
    width: max-content;
    background: #fff;
    border-radius: 12px;
}

.center {
    text-align: center;
}

.state {
    margin-top: 14px;
    padding: 12px 14px;
    border-radius: 10px;
}

.state--ok {
    background: var(--ok-bg);
    color: var(--ok);
}

.state--error {
    background: var(--error-bg);
    color: var(--error);
}

.state--warning {
    background: var(--warning-bg);
    color: var(--warning);
    margin-bottom: 14px;
}

.danger {
    color: var(--error);
}

.state--info {
    background: var(--info-bg);
    color: var(--info);
}

.link {
    display: inline-block;
    margin-top: 16px;
    color: var(--brand);
}

.footer {
    margin-top: 24px;
    text-align: center;
    color: var(--muted);
    font-size: 0.8rem;
}