:root {
    color-scheme: light;
    --bg: #f6f7fb;
    --panel: #ffffff;
    --ink: #182033;
    --muted: #637083;
    --line: #d9dee8;
    --accent: #e8325f;
    --accent-dark: #c71f49;
    --soft: #fff0f4;
    --code: #101828;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    min-height: 100vh;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei", Arial, sans-serif;
    color: var(--ink);
    background:
        radial-gradient(circle at top left, rgba(232, 50, 95, 0.12), transparent 34rem),
        linear-gradient(135deg, #f9fafc 0%, var(--bg) 100%);
}

.shell {
    width: min(960px, calc(100% - 32px));
    min-height: 100vh;
    margin: 0 auto;
    display: grid;
    align-items: center;
    padding: 48px 0;
}

.panel {
    background: var(--panel);
    border: 1px solid var(--line);
    border-radius: 8px;
    box-shadow: 0 24px 70px rgba(24, 32, 51, 0.08);
    padding: clamp(24px, 5vw, 48px);
}

.heading {
    max-width: 720px;
}

.eyebrow {
    margin: 0 0 10px;
    color: var(--accent);
    font-weight: 700;
    letter-spacing: 0;
    text-transform: uppercase;
}

h1 {
    margin: 0;
    font-size: clamp(2rem, 4vw, 3.5rem);
    line-height: 1.08;
    letter-spacing: 0;
}

.heading p:last-child {
    margin: 18px 0 0;
    color: var(--muted);
    font-size: 1rem;
    line-height: 1.7;
}

.resolver-form {
    margin-top: 34px;
}

label {
    display: block;
    margin-bottom: 10px;
    font-weight: 700;
}

.input-row {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 12px;
}

input {
    width: 100%;
    min-height: 52px;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 0 16px;
    color: var(--ink);
    font-size: 1rem;
    outline: none;
}

input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 4px rgba(232, 50, 95, 0.12);
}

button {
    min-height: 52px;
    border: 0;
    border-radius: 8px;
    padding: 0 24px;
    color: #fff;
    background: var(--accent);
    font-weight: 700;
    cursor: pointer;
}

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

button:disabled {
    cursor: wait;
    opacity: 0.68;
}

.status {
    margin-top: 18px;
    padding: 14px 16px;
    border-radius: 8px;
    color: var(--muted);
    background: #f3f5f9;
    border: 1px solid var(--line);
}

.status.error {
    color: #9f1239;
    background: #fff1f2;
    border-color: #fecdd3;
}

.result-card {
    margin-top: 22px;
    border: 1px solid var(--line);
    border-radius: 8px;
    overflow: hidden;
}

.result-card > div {
    display: grid;
    grid-template-columns: 190px minmax(0, 1fr) auto;
    gap: 12px;
    align-items: center;
    padding: 16px;
    border-top: 1px solid var(--line);
}

.result-card > div:first-child {
    border-top: 0;
}

.result-card span {
    color: var(--muted);
}

code,
pre {
    color: var(--code);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, "Liberation Mono", monospace;
}

#result-secuid {
    overflow-wrap: anywhere;
}

.ghost-button {
    min-height: 38px;
    padding: 0 14px;
    color: var(--accent);
    background: var(--soft);
}

.ghost-button:hover {
    color: #fff;
}

.api-box {
    margin-top: 30px;
    padding-top: 26px;
    border-top: 1px solid var(--line);
}

h2 {
    margin: 0 0 14px;
    font-size: 1.1rem;
}

pre {
    margin: 12px 0 0;
    overflow-x: auto;
    border: 1px solid var(--line);
    border-radius: 8px;
    padding: 16px;
    background: #f8fafc;
}

@media (max-width: 680px) {
    .shell {
        width: min(100% - 24px, 960px);
        padding: 24px 0;
    }

    .input-row {
        grid-template-columns: 1fr;
    }

    .result-card > div {
        grid-template-columns: 1fr;
    }

    .ghost-button {
        width: fit-content;
    }
}