@font-face {
    font-family: "InterFallback";
    src: local("Inter"), local("Segoe UI"), local("Helvetica Neue");
}

:root {
    color-scheme: light;
    --bg: #edf3f7;
    --surface: #ffffff;
    --surface-soft: #f5f9fc;
    --border: #d9e6ef;
    --border-strong: #b5cad8;
    --text: #102331;
    --muted: #567083;
    --accent: #0f6ea5;
    --accent-soft: #e8f4fb;
    --success-soft: #ebf7ef;
    --success-text: #1d6a38;
    --warn-soft: #fff6de;
    --warn-text: #8a6200;
    --danger-soft: #fff0f0;
    --danger-text: #9b2f2f;
    --shadow: 0 18px 44px rgba(16, 35, 49, 0.08);
    --radius-xl: 32px;
    --radius-lg: 22px;
    --radius-md: 16px;
    --page-width: 1320px;
}

* {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    min-height: 100%;
}

body {
    font-family: InterFallback, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
    background: radial-gradient(circle at top, #f7fbfe 0%, var(--bg) 44%, #e9f1f6 100%);
    color: var(--text);
}

body.shell-body {
    min-height: 100vh;
}

code,
pre,
textarea,
select,
button {
    font-family: "JetBrains Mono", "SFMono-Regular", ui-monospace, monospace;
}

main.shell-main {
    width: min(100%, var(--page-width));
    margin: 0 auto;
    padding: 30px 22px 40px;
}

.card {
    background: rgba(255, 255, 255, 0.9);
    border: 1px solid rgba(217, 230, 239, 0.95);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow);
    backdrop-filter: blur(14px);
}

.eyebrow {
    margin: 0;
    text-transform: uppercase;
    letter-spacing: 0.18em;
    font-size: 0.78rem;
    color: var(--accent);
    font-weight: 700;
}

button,
select,
textarea {
    border-radius: var(--radius-md);
    border: 1px solid var(--border-strong);
    background: var(--surface);
    color: var(--text);
}

button {
    padding: 12px 16px;
    font-weight: 700;
    cursor: pointer;
    transition: transform 120ms ease, border-color 120ms ease, background-color 120ms ease, box-shadow 120ms ease;
}

button:hover:enabled {
    transform: translateY(-1px);
    border-color: #92adc1;
    background: #f5f9fc;
    box-shadow: 0 10px 18px rgba(15, 110, 165, 0.08);
}

button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

button.primary {
    background: linear-gradient(135deg, #0f6ea5 0%, #0e5b87 100%);
    color: white;
    border-color: #0e5b87;
}

button.primary:hover:enabled {
    background: linear-gradient(135deg, #0f79b3 0%, #0f6ea5 100%);
}

select {
    padding: 12px 14px;
}

textarea {
    width: 100%;
    resize: vertical;
    min-height: 240px;
    padding: 16px;
    background: #fbfdff;
    line-height: 1.6;
    tab-size: 4;
}

pre {
    margin: 0;
    padding: 16px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border);
    background: #f8fbfd;
    white-space: pre-wrap;
    word-break: break-word;
    line-height: 1.6;
}

.status-pill {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    border-radius: 999px;
    font-weight: 700;
}

.status-pill.good {
    background: var(--success-soft);
    color: var(--success-text);
}

.status-pill.warn {
    background: var(--warn-soft);
    color: var(--warn-text);
}

.status-pill.blocked {
    background: var(--danger-soft);
    color: var(--danger-text);
}

.state-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px;
}

.state-grid div {
    padding: 12px 14px;
    border: 1px solid var(--border);
    border-radius: 18px;
    background: var(--surface-soft);
}

.state-grid dt {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.state-grid dd {
    margin: 8px 0 0;
    font-weight: 700;
}

.panel-header h2,
.panel-header h3,
.panel-header p,
.section-copy h2,
.section-copy p,
.output-block h3,
.output-block p {
    margin: 0;
}

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

.stack {
    display: grid;
    gap: 14px;
}

@media (max-width: 980px) {
    main.shell-main {
        padding: 22px 16px 28px;
    }

    .state-grid {
        grid-template-columns: 1fr;
    }
}