:root {
    --bg: #f4f5fa;
    --surface: #ffffff;
    --surface-soft: #eef0f8;
    --text: #1c2033;
    --muted: #6b7186;
    --border: #dfe2ee;
    --accent: #4f46e5;
    --accent-strong: #3d34c9;
    --ok: #0f8a5f;
    --warn: #b26a00;
    --danger: #c0392b;
    --radius: 14px;
    --radius-sm: 9px;
    --shadow: 0 10px 30px rgba(28, 32, 51, 0.07);
    --mono: "SFMono-Regular", ui-monospace, "JetBrains Mono", Consolas, monospace;
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    min-height: 100vh;
    background: var(--bg);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    font-size: 16px;
    line-height: 1.55;
}

[hidden] {
    display: none !important;
}

h1,
h2,
h3 {
    line-height: 1.25;
    margin: 0 0 0.5rem;
    letter-spacing: -0.01em;
}

h1 {
    font-size: clamp(1.5rem, 2.4vw, 2rem);
}

h2 {
    font-size: 1.25rem;
}

h3 {
    font-size: 1.05rem;
}

p {
    margin: 0 0 0.9rem;
}

a {
    color: var(--accent);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

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

.error {
    color: var(--danger);
    font-weight: 500;
}

.notice {
    color: var(--ok);
}

.eyebrow {
    margin: 0 0 0.6rem;
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.section-title {
    margin-bottom: 0.75rem;
}

.section-subtitle {
    margin: 0.4rem 0 0.5rem;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

/* Markdown */

.markdown > :first-child {
    margin-top: 0;
}

.markdown > :last-child {
    margin-bottom: 0;
}

.markdown h1,
.markdown h2,
.markdown h3 {
    margin-top: 1.1em;
}

.markdown p,
.markdown ul,
.markdown ol,
.markdown blockquote,
.markdown pre,
.markdown table {
    margin: 0 0 0.8em;
}

.markdown ul,
.markdown ol {
    padding-left: 1.4rem;
}

.markdown code {
    padding: 0.12em 0.35em;
    border-radius: 5px;
    background: var(--surface-soft);
    font-family: var(--mono);
    font-size: 0.9em;
}

.markdown pre {
    overflow-x: auto;
    padding: 0.9rem 1rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: #1e2233;
    color: #e8eaf3;
}

.markdown pre code {
    padding: 0;
    background: transparent;
    color: inherit;
}

.markdown blockquote {
    padding-left: 0.9rem;
    border-left: 3px solid var(--accent);
    color: var(--muted);
}

.markdown table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.94rem;
}

.markdown th,
.markdown td {
    padding: 0.45rem 0.6rem;
    border: 1px solid var(--border);
    text-align: left;
}

.markdown th {
    background: var(--surface-soft);
}

.markdown img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

.markdown--soft {
    color: var(--muted);
    font-size: 0.95rem;
}

/* Forms */

.input {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    background: var(--surface);
    color: inherit;
    font: inherit;
}

.input:focus {
    border-color: var(--accent);
    outline: 2px solid rgba(79, 70, 229, 0.18);
}

textarea.input {
    resize: vertical;
}

.input--small {
    width: auto;
    min-width: 9rem;
    padding: 0.45rem 0.6rem;
    font-size: 0.92rem;
}

.field {
    display: block;
    margin-bottom: 0.9rem;
}

.field > span {
    display: block;
    margin-bottom: 0.35rem;
    color: var(--muted);
    font-size: 0.86rem;
    font-weight: 600;
}

.field--inline {
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

.field--inline > span {
    margin: 0;
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0 1rem;
}

.check {
    display: inline-flex;
    align-items: center;
    gap: 0.45rem;
    padding: 0.3rem 0.7rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    font-size: 0.9rem;
    cursor: pointer;
}

.check input {
    accent-color: var(--accent);
}

/* Buttons */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.4rem;
    padding: 0.55rem 1.05rem;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--surface-soft);
    color: var(--text);
    font: inherit;
    font-weight: 600;
    line-height: 1.2;
    cursor: pointer;
    transition: background 0.15s ease, border-color 0.15s ease, transform 0.05s ease;
}

.btn:hover {
    text-decoration: none;
    background: var(--border);
}

.btn:active {
    transform: translateY(1px);
}

.btn:disabled {
    opacity: 0.55;
    cursor: default;
    transform: none;
}

.btn--primary {
    background: var(--accent);
    color: #fff;
}

.btn--primary:hover {
    background: var(--accent-strong);
}

.btn--ghost {
    border-color: var(--border);
    background: transparent;
}

.btn--ghost:hover {
    background: var(--surface-soft);
}

.btn--danger {
    background: var(--danger);
    color: #fff;
}

.btn--danger:hover {
    background: #a93226;
}

.btn--warn {
    background: var(--warn);
    color: #fff;
}

.btn--warn:hover {
    background: #8f5600;
}

.btn--ok {
    background: var(--ok);
    color: #fff;
}

.btn--ok:hover {
    background: #0b6f4c;
}

.btn--small {
    padding: 0.35rem 0.7rem;
    font-size: 0.86rem;
}

.btn--big {
    padding: 0.75rem 1.4rem;
    font-size: 1.02rem;
}

.btn--block {
    width: 100%;
}

/* Chips / badges */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.4rem;
}

.chip {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    padding: 0.22rem 0.65rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    background: var(--surface);
    color: var(--text);
    font-size: 0.84rem;
    white-space: nowrap;
}

button.chip {
    cursor: pointer;
}

button.chip:hover {
    border-color: var(--accent);
}

.chip--small {
    padding: 0.1rem 0.5rem;
    font-size: 0.78rem;
}

.chip--active {
    border-color: var(--accent);
    background: var(--accent);
    color: #fff;
}

.badge {
    display: inline-flex;
    align-items: center;
    padding: 0.18rem 0.6rem;
    border-radius: 999px;
    background: var(--surface-soft);
    color: var(--muted);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    white-space: nowrap;
}

.badge--strong,
.badge--known,
.badge--ok {
    background: rgba(15, 138, 95, 0.13);
    color: var(--ok);
}

.badge--medium,
.badge--partial,
.badge--warn {
    background: rgba(178, 106, 0, 0.13);
    color: var(--warn);
}

.badge--weak,
.badge--unknown,
.badge--danger {
    background: rgba(192, 57, 43, 0.12);
    color: var(--danger);
}

.badge--none {
    background: var(--surface-soft);
    color: var(--muted);
}

/* Tables */

.table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.94rem;
}

.table th,
.table td {
    padding: 0.55rem 0.6rem;
    border-bottom: 1px solid var(--border);
    text-align: left;
    vertical-align: middle;
}

.table th {
    color: var(--muted);
    font-size: 0.78rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.table tbody tr:last-child td {
    border-bottom: none;
}

.num {
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.table-wrap {
    overflow-x: auto;
}

/* Toast */

.toast {
    position: fixed;
    right: 1rem;
    bottom: 1rem;
    z-index: 50;
    max-width: min(360px, calc(100vw - 2rem));
    padding: 0.7rem 1rem;
    border-radius: var(--radius-sm);
    background: #1c2033;
    color: #fff;
    font-size: 0.92rem;
    box-shadow: var(--shadow);
    animation: toast-in 0.18s ease-out;
}

.toast--error {
    background: var(--danger);
}

@keyframes toast-in {
    from {
        opacity: 0;
        transform: translateY(6px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.stack {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
}

.small {
    font-size: 0.85rem;
}