:root {
    --bg: #111318;
    --panel: #1a1d24;
    --panel-soft: #20242d;
    --border: #343a48;
    --text: #edf0f5;
    --muted: #9ba3b3;
    --accent: #b98be8;
    --accent-soft: rgba(155, 107, 201, 0.18);
    --success: #78c985;
    --danger: #ef8c8c;
    --font-serif: "Noto Serif SC", serif;
    --font-sans: "Noto Sans SC", "Microsoft YaHei", sans-serif;
    color-scheme: dark;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
    min-height: 100vh;
    background:
        radial-gradient(circle at 18% 0, rgba(155, 107, 201, 0.12), transparent 34rem),
        radial-gradient(circle at 88% 88%, rgba(95, 173, 106, 0.08), transparent 30rem),
        var(--bg);
    color: var(--text);
    font-family: var(--font-sans);
}

.license-shell {
    width: min(760px, calc(100% - 2rem));
    margin: 0 auto;
    padding: 2rem 0 1rem;
}

.license-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 2.5rem;
    padding-right: 9rem;
    color: var(--muted);
    font-size: 0.78rem;
}

.license-nav a,
.app-footer a {
    color: var(--accent);
    text-decoration: none;
}

.license-nav a:hover,
.app-footer a:hover { text-decoration: underline; }

.license-header {
    padding: 4.5rem 1rem 3rem;
    text-align: center;
}

.license-header > p {
    color: var(--accent);
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.18em;
}

.license-header h1 {
    margin: 0.55rem 0 0.75rem;
    font-family: var(--font-serif);
    font-size: clamp(2.15rem, 7vw, 3.4rem);
    letter-spacing: 0.12em;
}

.license-header > span {
    color: var(--muted);
    font-size: 0.86rem;
    line-height: 1.7;
}

.license-panel {
    padding: 1.5rem;
    border: 1px solid var(--border);
    border-radius: 14px;
    background: rgba(26, 29, 36, 0.95);
    box-shadow: 0 18px 45px rgba(0, 0, 0, 0.2);
}

.license-panel-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 1rem;
}

.license-panel-heading p {
    color: var(--muted);
    font-size: 0.7rem;
    letter-spacing: 0.12em;
}

.license-panel-heading h2 {
    margin-top: 0.3rem;
    font-family: var(--font-serif);
    font-size: 1.25rem;
}

.license-panel-heading > strong {
    padding: 0.35rem 0.65rem;
    border: 1px solid rgba(185, 139, 232, 0.45);
    border-radius: 999px;
    color: var(--accent);
    font-size: 0.75rem;
}

.license-field {
    display: grid;
    gap: 0.5rem;
    margin-top: 1.4rem;
}

.license-field span {
    color: var(--muted);
    font-size: 0.78rem;
}

.license-field input {
    width: 100%;
    min-height: 3rem;
    padding: 0.75rem 0.85rem;
    border: 1px solid var(--border);
    border-radius: 9px;
    background: var(--panel-soft);
    color: var(--text);
    font: 500 0.9rem var(--font-sans);
}

.license-field input:focus {
    border-color: var(--accent);
    outline: 2px solid rgba(185, 139, 232, 0.2);
    outline-offset: 2px;
}

.license-query-button {
    width: 100%;
    min-height: 2.8rem;
    margin-top: 1rem;
    border: 1px solid rgba(185, 139, 232, 0.55);
    border-radius: 9px;
    background: var(--accent-soft);
    color: #d7b3fa;
    cursor: pointer;
    font: 700 0.88rem var(--font-sans);
    transition: transform 150ms ease, background-color 150ms ease;
}

.license-query-button:hover:not(:disabled) {
    transform: translateY(-1px);
    background: rgba(155, 107, 201, 0.28);
}

.license-query-button:disabled {
    cursor: not-allowed;
    opacity: 0.62;
}

.license-message {
    min-height: 1.5rem;
    margin-top: 0.75rem;
    color: var(--muted);
    font-size: 0.76rem;
    line-height: 1.55;
}

.license-message[hidden] { display: none; }
.license-message.is-success { color: var(--success); }
.license-message.is-error { color: var(--danger); }

.license-result {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    margin-top: 1rem;
}

.license-result[hidden] { display: none; }

.license-result-item {
    min-width: 0;
    padding: 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--panel-soft);
}

.license-result-item dt {
    color: var(--muted);
    font-size: 0.72rem;
}

.license-result-item dd {
    margin-top: 0.45rem;
    color: var(--text);
    font-family: var(--font-serif);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.45;
    overflow-wrap: anywhere;
}

.license-result-item dd.is-positive { color: var(--success); }
.license-result-item dd.is-negative { color: var(--danger); }

.license-privacy {
    display: grid;
    gap: 0.25rem;
    margin-top: 1rem;
    padding: 0.9rem 1rem;
    border-left: 3px solid var(--accent);
    background: var(--accent-soft);
}

.license-privacy strong { font-size: 0.78rem; }
.license-privacy span { color: var(--muted); font-size: 0.72rem; line-height: 1.6; }

.app-footer {
    padding: 1.2rem 0 0.5rem;
    color: var(--muted);
    font-size: 0.72rem;
    text-align: center;
}

html[data-theme="bright"] { color-scheme: light; }

html[data-theme="bright"] .wuxia-license {
    --panel: var(--wuxia-paper-raised);
    --panel-soft: var(--wuxia-paper-muted);
    --border: var(--wuxia-hairline);
    --text: var(--wuxia-ink);
    --muted: var(--wuxia-ink-soft);
    --accent: var(--wuxia-cinnabar);
    --accent-soft: rgba(166, 63, 49, 0.09);
    --success: #3d7449;
    --danger: #a33b32;
    --font-serif: var(--wuxia-serif);
    --font-sans: var(--wuxia-sans);
}

html[data-theme="bright"] .license-header {
    position: relative;
    min-height: 16rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

html[data-theme="bright"] .license-header::after {
    content: "";
    width: 5rem;
    height: 1px;
    margin-top: 1.2rem;
    background: linear-gradient(90deg, transparent, var(--wuxia-cinnabar), transparent);
}

html[data-theme="bright"] .license-panel {
    background: rgba(251, 248, 239, 0.95);
    box-shadow: 0 16px 38px var(--wuxia-shadow);
}

html[data-theme="bright"] .license-panel-heading > strong {
    border-color: rgba(166, 63, 49, 0.35);
}

html[data-theme="bright"] .license-field input {
    background: rgba(231, 224, 209, 0.7);
}

html[data-theme="bright"] .license-field input:focus {
    outline-color: rgba(166, 63, 49, 0.18);
}

html[data-theme="bright"] .license-query-button {
    border-color: var(--wuxia-cinnabar-deep);
    background: var(--wuxia-cinnabar);
    color: #fffaf0;
}

html[data-theme="bright"] .license-query-button:hover:not(:disabled) {
    background: var(--wuxia-cinnabar-deep);
}

html[data-theme="bright"] .license-result-item {
    background: rgba(231, 224, 209, 0.55);
}

@media (max-width: 600px) {
    .license-shell { width: min(100% - 1rem, 760px); padding-top: 1rem; }
    .license-nav { min-height: 3.25rem; padding: 0 7.6rem 0 0.5rem; }
    .license-header { padding: 3.25rem 0.5rem 2rem; }
    .license-panel { padding: 1rem; }
    .license-result { grid-template-columns: 1fr; }
    html[data-theme="bright"] .license-header { min-height: 13rem; }
}

@media (max-width: 390px) {
    .license-nav span { display: none; }
    .license-header h1 { letter-spacing: 0.06em; }
    .license-panel-heading { align-items: center; }
}

@media (prefers-reduced-motion: reduce) {
    .license-query-button { transition: none; }
}