.pd-tool {
    --pd-font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, Helvetica, sans-serif;
    --pd-font-size: 16px;
    --pd-line-height: 1.55;
    --pd-bg: #f6f8f6;
    --pd-surface: #ffffff;
    --pd-text: #17221b;
    --pd-muted: #5b675f;
    --pd-border: #d8e0da;
    --pd-accent: #18754b;
    --pd-accent-dark: #0f5b39;
    --pd-accent-soft: #eaf5ee;
    --pd-danger: #a52a2a;
    --pd-danger-soft: #fff0f0;
    --pd-shadow: 0 12px 32px rgba(23, 34, 27, 0.08);
    --pd-radius: 18px;
    --pd-radius-small: 12px;
    color: var(--pd-text);
    font-family: var(--pd-font-family);
    font-size: var(--pd-font-size);
    line-height: var(--pd-line-height);
    box-sizing: border-box;
    width: 100%;
}

.pd-tool *,
.pd-tool *::before,
.pd-tool *::after {
    box-sizing: inherit;
}

.pd-tool .pd-shell {
    width: 100%;
    padding: clamp(20px, 4vw, 40px);
    background: var(--pd-bg);
    border: 1px solid var(--pd-border);
    border-radius: var(--pd-radius);
}

.pd-tool .pd-heading {
    max-width: 860px;
    margin: 0 0 24px;
}

.pd-tool .pd-kicker {
    margin: 0 0 8px;
    color: var(--pd-accent-dark);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.pd-tool .pd-title {
    margin: 0;
    color: var(--pd-text);
    font-family: var(--pd-font-family);
    font-size: clamp(1.5rem, 3vw, 2.1rem);
    font-weight: 700;
    line-height: 1.2;
}

.pd-tool .pd-intro {
    margin: 12px 0 0;
    max-width: 780px;
    color: var(--pd-muted);
}

.pd-tool .pd-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 18px;
    align-items: stretch;
}

.pd-tool .pd-card {
    min-width: 0;
    padding: 22px;
    background: var(--pd-surface);
    border: 1px solid var(--pd-border);
    border-radius: var(--pd-radius-small);
    box-shadow: var(--pd-shadow);
}

.pd-tool .pd-card-title {
    margin: 0 0 18px;
    color: var(--pd-text);
    font-size: 1.05rem;
    font-weight: 700;
    line-height: 1.3;
}

.pd-tool .pd-field + .pd-field {
    margin-top: 18px;
}

.pd-tool .pd-label {
    display: inline-block;
    margin: 0 0 7px;
    color: var(--pd-text);
    font-weight: 600;
}

.pd-tool .pd-input-wrap {
    display: grid;
    grid-template-columns: 42px minmax(0, 1fr);
    overflow: hidden;
    background: var(--pd-surface);
    border: 1px solid var(--pd-border);
    border-radius: 10px;
    transition: border-color 160ms ease, box-shadow 160ms ease;
}

.pd-tool .pd-input-wrap:focus-within {
    border-color: var(--pd-accent);
    box-shadow: 0 0 0 3px var(--pd-accent-soft);
}

.pd-tool .pd-prefix {
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--pd-accent-dark);
    font-weight: 700;
    background: var(--pd-accent-soft);
    border-right: 1px solid var(--pd-border);
}

.pd-tool .pd-input {
    width: 100%;
    min-height: 48px;
    margin: 0;
    padding: 11px 13px;
    color: var(--pd-text);
    font-family: var(--pd-font-family);
    font-size: 16px;
    line-height: 1.35;
    background: transparent;
    border: 0;
    border-radius: 0;
    outline: 0;
    box-shadow: none;
    appearance: none;
    -webkit-appearance: none;
}

.pd-tool .pd-input::placeholder {
    color: #8a948e;
    opacity: 1;
}

.pd-tool .pd-help {
    margin: 7px 0 0;
    color: var(--pd-muted);
    font-size: 0.87rem;
}

.pd-tool .pd-error {
    margin: 16px 0 0;
    padding: 10px 12px;
    color: var(--pd-danger);
    font-size: 0.9rem;
    background: var(--pd-danger-soft);
    border: 1px solid rgba(165, 42, 42, 0.2);
    border-radius: 9px;
}

.pd-tool .pd-error[hidden] {
    display: none;
}

.pd-tool .pd-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 20px;
}

.pd-tool .pd-button {
    min-height: 46px;
    padding: 10px 16px;
    color: inherit;
    font-family: var(--pd-font-family);
    font-size: 16px;
    font-weight: 700;
    line-height: 1.2;
    text-decoration: none;
    border: 1px solid transparent;
    border-radius: 10px;
    cursor: pointer;
    appearance: none;
    -webkit-appearance: none;
    transition: background-color 160ms ease, border-color 160ms ease, color 160ms ease;
}

.pd-tool .pd-button:focus-visible {
    outline: 3px solid var(--pd-accent-soft);
    outline-offset: 2px;
}

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

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

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

.pd-tool .pd-button-secondary:hover {
    color: var(--pd-accent-dark);
    border-color: var(--pd-accent);
}

.pd-tool .pd-button-ghost {
    color: var(--pd-muted);
    background: transparent;
    border-color: transparent;
}

.pd-tool .pd-button-ghost:hover {
    color: var(--pd-accent-dark);
    background: var(--pd-accent-soft);
}

.pd-tool .pd-result-card {
    background: linear-gradient(180deg, var(--pd-surface) 0%, #fbfdfb 100%);
}

.pd-tool .pd-result-row {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 18px;
    padding: 13px 0;
    border-bottom: 1px solid var(--pd-border);
}

.pd-tool .pd-result-row:last-of-type {
    padding-bottom: 0;
    border-bottom: 0;
}

.pd-tool .pd-result-row-strong {
    margin: 4px 0;
    padding: 16px;
    background: var(--pd-accent-soft);
    border: 0;
    border-radius: 10px;
}

.pd-tool .pd-result-label {
    min-width: 0;
    color: var(--pd-muted);
}

.pd-tool .pd-result-row-strong .pd-result-label {
    color: var(--pd-accent-dark);
    font-weight: 700;
}

.pd-tool .pd-result-value {
    flex: 0 0 auto;
    color: var(--pd-text);
    font-variant-numeric: tabular-nums;
    font-weight: 700;
    white-space: nowrap;
}

.pd-tool .pd-result-row-strong .pd-result-value {
    color: var(--pd-accent-dark);
    font-size: 1.25rem;
}

.pd-tool .pd-rate-note {
    margin: 16px 0 0;
    color: var(--pd-muted);
    font-size: 0.88rem;
}

.pd-tool .pd-rules {
    margin-top: 18px;
    padding: 20px;
    background: var(--pd-surface);
    border: 1px solid var(--pd-border);
    border-radius: var(--pd-radius-small);
}

.pd-tool .pd-rules-title {
    margin: 0 0 14px;
    font-size: 1rem;
    font-weight: 700;
    line-height: 1.3;
}

.pd-tool .pd-rules-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 12px 18px;
}

.pd-tool .pd-rule {
    display: grid;
    grid-template-columns: 28px minmax(0, 1fr);
    gap: 10px;
    align-items: start;
}

.pd-tool .pd-rule-mark {
    display: flex;
    width: 26px;
    height: 26px;
    align-items: center;
    justify-content: center;
    color: var(--pd-accent-dark);
    font-weight: 700;
    background: var(--pd-accent-soft);
    border-radius: 50%;
}

.pd-tool .pd-rule-mark-neutral {
    color: var(--pd-muted);
    background: var(--pd-bg);
}

.pd-tool .pd-rule-text {
    color: var(--pd-muted);
    font-size: 0.92rem;
}

.pd-tool .pd-disclaimer {
    margin: 14px 0 0;
    color: var(--pd-muted);
    font-size: 0.82rem;
}

@media (max-width: 760px) {
    .pd-tool .pd-shell {
        padding: 18px;
        border-radius: 14px;
    }

    .pd-tool .pd-layout,
    .pd-tool .pd-rules-grid {
        grid-template-columns: minmax(0, 1fr);
    }

    .pd-tool .pd-card {
        padding: 18px;
    }

    .pd-tool .pd-result-row {
        align-items: flex-start;
    }

    .pd-tool .pd-actions {
        flex-direction: column;
    }

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

@media (max-width: 420px) {
    .pd-tool .pd-result-row {
        display: grid;
        grid-template-columns: minmax(0, 1fr);
        gap: 5px;
    }

    .pd-tool .pd-result-value {
        white-space: normal;
    }
}

@media (prefers-reduced-motion: reduce) {
    .pd-tool .pd-input-wrap,
    .pd-tool .pd-button {
        transition: none;
    }
}