:root {
    color-scheme: light;
    --bg: #f6f5f1;
    --surface: #ffffff;
    --text: #111827;
    --muted: #6b7280;
    --border: #e5e7eb;
    --accent: #f47432;
    --accent-hover: #d8551b;
    --danger: #dc2626;
    --shadow: 0 1px 3px rgba(15, 23, 42, 0.05), 0 8px 24px rgba(15, 23, 42, 0.05);
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto,
        "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.5;
}

.topbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    background: var(--surface);
}

.brand {
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--text);
    text-decoration: none;
    letter-spacing: -0.01em;
}

.container {
    flex: 1;
    width: 100%;
    max-width: 800px;
    margin: 0 auto;
    padding: 2.5rem 1.5rem 4rem;
}

.card {
    background: var(--surface);
    border-radius: 16px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 2rem;
}

.card.narrow { max-width: 420px; margin: 4rem auto 0; }

h1 { margin: 0 0 0.5rem; font-size: 1.6rem; letter-spacing: -0.01em; }
h2 { margin: 2rem 0 0.75rem; font-size: 1.1rem; }

.muted { color: var(--muted); margin-top: 0; }

.stack { display: flex; flex-direction: column; gap: 1.25rem; margin-top: 1.5rem; }

.field { display: flex; flex-direction: column; gap: 0.35rem; }
.field span { font-size: 0.9rem; color: var(--muted); }

input[type="text"], input[type="password"] {
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.7rem 0.85rem;
    font-size: 1rem;
    background: #fff;
    color: var(--text);
    transition: border-color 0.15s, box-shadow 0.15s;
}

input[type="text"]:focus, input[type="password"]:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(244, 116, 50, 0.18);
}

.modes {
    border: 0; padding: 0; margin: 0;
    display: flex; flex-direction: column; gap: 0.6rem;
}
.modes legend { font-size: 0.9rem; color: var(--muted); margin-bottom: 0.4rem; padding: 0; }
.radio {
    display: flex; gap: 0.75rem; align-items: flex-start;
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 0.8rem 1rem;
    cursor: pointer;
    transition: border-color 0.15s, background 0.15s;
}
.radio:hover { border-color: var(--accent); }
.radio input { margin-top: 0.25rem; }
.radio strong { display: block; }
.radio small { display: block; color: var(--muted); }

button.primary, a.primary {
    display: inline-block;
    background: var(--accent);
    color: #fff;
    border: 0;
    border-radius: 10px;
    padding: 0.75rem 1.1rem;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    text-align: center;
    transition: background 0.15s;
}
button.primary:hover, a.primary:hover { background: var(--accent-hover); }

a.ghost {
    border: 1px solid var(--border);
    color: var(--text);
    padding: 0.45rem 0.9rem;
    border-radius: 10px;
    text-decoration: none;
    font-size: 0.9rem;
    background: #fff;
}
a.ghost:hover { border-color: var(--accent); }

.link {
    background: none;
    border: 0;
    color: var(--muted);
    cursor: pointer;
    font-size: 0.9rem;
    padding: 0.25rem 0.5rem;
}
.link:hover { color: var(--text); }

.error {
    color: var(--danger);
    background: rgba(220, 38, 38, 0.08);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    margin: 0;
    font-size: 0.95rem;
}

.result-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    margin-bottom: 1.5rem;
}
.result-link {
    color: var(--text);
    text-decoration: none;
    word-break: break-all;
    font-weight: 500;
}
.result-link:hover { color: var(--accent); }

.meta {
    display: grid;
    grid-template-columns: 1fr;
    gap: 0.5rem;
    background: var(--bg);
    border-radius: 12px;
    padding: 1rem 1.25rem;
    margin: 0 0 2rem;
}
.meta > div { display: grid; grid-template-columns: 110px 1fr; gap: 0.75rem; }
.meta dt { color: var(--muted); font-size: 0.9rem; }
.meta dd { margin: 0; word-break: break-word; }

figure.image {
    margin: 0 0 2rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    padding: 1rem;
    background: var(--bg);
    text-align: center;
}
figure.image img {
    max-width: 100%;
    height: auto;
    border-radius: 8px;
    box-shadow: var(--shadow);
}
figure.image.qr img { max-width: 320px; }
figure.image figcaption { margin-top: 1rem; }

.footer {
    text-align: center;
    color: var(--muted);
    padding: 2rem;
}