.pd-tool {
    --pd-bg: #f5f7f5;
    --pd-surface: #ffffff;
    --pd-surface-soft: #eef4f0;
    --pd-text: #1c2620;
    --pd-muted: #5d6a62;
    --pd-accent: #1f7550;
    --pd-accent-strong: #15563a;
    --pd-border: #d7e0da;
    --pd-focus: #2563eb;
    --pd-good: #1e6a47;
    --pd-watch: #6f5b16;
    --pd-warning: #8a4f08;
    --pd-danger: #9b2f2f;
    --pd-radius: 14px;
    --pd-shadow: 0 8px 28px rgba(24, 44, 32, 0.08);
    --pd-font: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, Helvetica, sans-serif;
    background: var(--pd-bg);
    border: 1px solid var(--pd-border);
    border-radius: var(--pd-radius);
    box-shadow: var(--pd-shadow);
    color: var(--pd-text);
    font-family: var(--pd-font);
    line-height: 1.55;
    margin: 28px 0;
    padding: 24px;
}

.pd-tool,
.pd-tool * {
    box-sizing: border-box;
}

.pd-tool .pd-kicker {
    color: var(--pd-accent);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
    text-transform: uppercase;
}

.pd-tool .pd-title {
    color: var(--pd-text);
    font-family: var(--pd-font);
    font-size: clamp(24px, 4vw, 34px);
    font-weight: 800;
    line-height: 1.2;
    margin: 0 0 10px;
}

.pd-tool .pd-lead {
    color: var(--pd-muted);
    font-size: 16px;
    max-width: 820px;
}

.pd-tool .pd-form {
    margin-top: 22px;
}

.pd-tool .pd-grid {
    display: grid;
    gap: 16px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pd-tool .pd-field,
.pd-tool .pd-action {
    min-width: 0;
}

.pd-tool .pd-label {
    margin-bottom: 6px;
}

.pd-tool .pd-label label {
    color: var(--pd-text);
    font-size: 14px;
    font-weight: 700;
}

.pd-tool .pd-control {
    position: relative;
}

.pd-tool .pd-control input,
.pd-tool .pd-control select {
    appearance: none;
    -webkit-appearance: none;
    background: var(--pd-surface);
    border: 1px solid var(--pd-border);
    border-radius: 10px;
    color: var(--pd-text);
    font: inherit;
    font-size: 16px;
    min-height: 46px;
    padding: 10px 12px;
    width: 100%;
}

.pd-tool .pd-control select {
    background-image:
        linear-gradient(45deg, transparent 50%, var(--pd-muted) 50%),
        linear-gradient(135deg, var(--pd-muted) 50%, transparent 50%);
    background-position:
        calc(100% - 17px) 19px,
        calc(100% - 12px) 19px;
    background-repeat: no-repeat;
    background-size: 5px 5px, 5px 5px;
    padding-right: 36px;
}

.pd-tool .pd-control input:focus,
.pd-tool .pd-control select:focus,
.pd-tool .pd-button:focus-visible,
.pd-tool .pd-formula-scroll:focus-visible {
    border-color: var(--pd-focus);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.18);
    outline: 2px solid transparent;
    outline-offset: 2px;
}

.pd-tool .pd-help {
    color: var(--pd-muted);
    font-size: 12px;
    margin-top: 5px;
}

.pd-tool .pd-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 18px;
}

.pd-tool .pd-button {
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    font-family: var(--pd-font);
    font-size: 15px;
    font-weight: 700;
    min-height: 44px;
    padding: 10px 16px;
    transition: background-color 160ms ease, border-color 160ms ease, transform 160ms ease;
}

.pd-tool .pd-button-primary {
    background: var(--pd-accent);
    color: #ffffff;
}

.pd-tool .pd-button-primary:hover {
    background: var(--pd-accent-strong);
    transform: translateY(-1px);
}

.pd-tool .pd-button-secondary {
    background: var(--pd-surface);
    border-color: var(--pd-border);
    color: var(--pd-text);
}

.pd-tool .pd-button-secondary:hover {
    background: var(--pd-surface-soft);
}

.pd-tool .pd-alert {
    color: var(--pd-muted);
    font-size: 13px;
    margin-top: 14px;
    min-height: 20px;
}

.pd-tool.has-error .pd-alert {
    color: var(--pd-danger);
    font-weight: 700;
}

.pd-tool .pd-results {
    background: var(--pd-surface);
    border: 1px solid var(--pd-border);
    border-radius: 12px;
    margin-top: 18px;
    padding: 18px;
}

.pd-tool .pd-result-head {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: space-between;
    margin-bottom: 14px;
}

.pd-tool .pd-result-label {
    color: var(--pd-muted);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.06em;
    text-transform: uppercase;
}

.pd-tool .pd-result-verdict {
    background: var(--pd-surface-soft);
    border-radius: 999px;
    color: var(--pd-text);
    font-size: 13px;
    font-weight: 800;
    padding: 6px 10px;
}

.pd-tool .pd-result-verdict.is-good {
    background: #e2f3e9;
    color: var(--pd-good);
}

.pd-tool .pd-result-verdict.is-watch {
    background: #f4efd7;
    color: var(--pd-watch);
}

.pd-tool .pd-result-verdict.is-warning {
    background: #fff0dc;
    color: var(--pd-warning);
}

.pd-tool .pd-result-verdict.is-danger {
    background: #fde7e7;
    color: var(--pd-danger);
}

.pd-tool .pd-metrics {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

.pd-tool .pd-metric {
    background: var(--pd-surface-soft);
    border-radius: 10px;
    min-width: 0;
    padding: 12px;
}

.pd-tool .pd-metric-label {
    color: var(--pd-muted);
    font-size: 12px;
    margin-bottom: 4px;
}

.pd-tool .pd-metric-value {
    color: var(--pd-text);
    font-size: 18px;
    font-variant-numeric: tabular-nums;
    font-weight: 800;
    overflow-wrap: anywhere;
}

.pd-tool .pd-explainer {
    border-top: 1px solid var(--pd-border);
    margin-top: 16px;
    padding-top: 16px;
}

.pd-tool .pd-explainer-title {
    color: var(--pd-muted);
    font-size: 13px;
    font-weight: 700;
}

.pd-tool .pd-explainer-value {
    color: var(--pd-text);
    font-size: 28px;
    font-variant-numeric: tabular-nums;
    font-weight: 800;
    margin-top: 2px;
}

.pd-tool .pd-explainer-text {
    color: var(--pd-muted);
    font-size: 14px;
    margin-top: 6px;
}

.pd-tool .pd-formula-scroll {
    border-top: 1px solid var(--pd-border);
    margin-top: 16px;
    overflow-x: auto;
    padding-top: 14px;
    -webkit-overflow-scrolling: touch;
}

.pd-tool .pd-formula {
    color: var(--pd-muted);
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: 12px;
    min-width: 640px;
    white-space: nowrap;
}

.pd-tool .pd-note {
    border-left: 4px solid var(--pd-accent);
    margin-top: 16px;
    padding: 2px 0 2px 12px;
}

.pd-tool .pd-note-title {
    color: var(--pd-text);
    font-size: 13px;
    font-weight: 800;
    margin-bottom: 3px;
}

.pd-tool .pd-note-text {
    color: var(--pd-muted);
    font-size: 13px;
}

@media (max-width: 860px) {
    .pd-tool .pd-grid,
    .pd-tool .pd-metrics {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 620px) {
    .pd-tool {
        border-radius: 12px;
        padding: 20px 16px;
    }

    .pd-tool .pd-grid,
    .pd-tool .pd-metrics {
        grid-template-columns: 1fr;
    }

    .pd-tool .pd-actions {
        display: grid;
        grid-template-columns: 1fr;
    }

    .pd-tool .pd-button {
        width: 100%;
    }

    .pd-tool .pd-result-head {
        align-items: flex-start;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pd-tool *,
    .pd-tool *::before,
    .pd-tool *::after {
        transition-duration: 0.01ms !important;
        transition-delay: 0ms !important;
    }

    .pd-tool .pd-button-primary:hover {
        transform: none;
    }
}