#vitaminIuPpmConverter {
    --vpc-bg: #faf9f7;
    --vpc-surface: #ffffff;
    --vpc-border: #e8e4dc;
    --vpc-text: #2d2a26;
    --vpc-muted: #5f5a56;
    --vpc-accent: #b8860b;
    --vpc-accent-strong: #8a6500;
    --vpc-accent-light: #fbf7eb;
    --vpc-accent-mid: #eadfb8;
    --vpc-danger: #b42318;
    --vpc-mono: 'Courier New', Courier, monospace;
    --vpc-sans: Helvetica, Arial, -apple-system, BlinkMacSystemFont, "Apple SD Gothic Neo", sans-serif;
    --vpc-radius: 10px;
    --vpc-radius-sm: 7px;
    --vpc-shadow: 0 1px 4px rgba(0,0,0,0.06), 0 0 0 1px rgba(0,0,0,0.04);
    background: var(--vpc-bg);
    border: 0;
    border-radius: 0;
    box-shadow: none;
    color: var(--vpc-text);
    font-family: var(--vpc-sans);
    font-size: 14px;
    line-height: 1.5;
    margin-bottom: 24px;
    padding: 24px 16px 44px;
}

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

#vitaminIuPpmConverter .vpc-wrap {
    display: grid;
    gap: 12px;
    margin: 0 auto;
    max-width: 980px;
    width: 100%;
}

#vitaminIuPpmConverter .vpc-tool-header {
    align-items: flex-end;
    border-bottom: 1px solid var(--vpc-border);
    display: flex;
    gap: 12px;
    justify-content: space-between;
    padding: 4px 0 10px;
}

#vitaminIuPpmConverter .vpc-tool-header h2 {
    align-items: center;
    color: var(--vpc-text);
    display: flex;
    font-size: 18px;
    font-weight: 800;
    gap: 9px;
    letter-spacing: -0.35px;
    line-height: 1.25;
    margin: 0;
}

#vitaminIuPpmConverter .vpc-tool-header p {
    color: var(--vpc-muted);
    font-size: 13px;
    margin: 5px 0 0;
}

#vitaminIuPpmConverter .vpc-icon {
    align-items: center;
    background: linear-gradient(135deg, #f5df8a 0%, #b8860b 100%);
    border-radius: 9px;
    color: #2d2a26;
    display: inline-flex;
    font-family: var(--vpc-mono);
    font-size: 12px;
    font-weight: 800;
    height: 30px;
    justify-content: center;
    letter-spacing: -0.5px;
    width: 34px;
}

#vitaminIuPpmConverter .vpc-badge {
    background: var(--vpc-accent-light);
    border: 1px solid var(--vpc-accent-mid);
    border-radius: 999px;
    color: var(--vpc-accent-strong);
    font-family: var(--vpc-mono);
    font-size: 11px;
    font-weight: 700;
    padding: 4px 10px;
    white-space: nowrap;
}

#vitaminIuPpmConverter .vpc-input-panel,
#vitaminIuPpmConverter .vpc-table-card,
#vitaminIuPpmConverter .vpc-note-card {
    background: var(--vpc-surface);
    border: 1px solid var(--vpc-border);
    border-radius: var(--vpc-radius);
    box-shadow: var(--vpc-shadow);
}

#vitaminIuPpmConverter .vpc-input-panel {
    display: grid;
    gap: 14px;
    padding: 16px 18px 18px;
}

#vitaminIuPpmConverter .vpc-panel-title,
#vitaminIuPpmConverter .vpc-main-label,
#vitaminIuPpmConverter .vpc-metric-label {
    color: var(--vpc-muted);
    font-size: 11px;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

#vitaminIuPpmConverter .vpc-input-grid {
    align-items: end;
    display: grid;
    gap: 10px;
    grid-template-columns: minmax(220px, 1.5fr) minmax(130px, 0.9fr) minmax(160px, 1fr) minmax(110px, 0.65fr);
}

#vitaminIuPpmConverter .vpc-field-wide {
    min-width: 0;
}

#vitaminIuPpmConverter .vpc-field {
    display: flex;
    flex-direction: column;
    gap: 5px;
    min-width: 0;
}

#vitaminIuPpmConverter .vpc-field label {
    color: var(--vpc-muted);
    font-size: 12px;
    font-weight: 700;
}

#vitaminIuPpmConverter .vpc-field select,
#vitaminIuPpmConverter .vpc-input-box {
    background: var(--vpc-bg);
    border: 1.5px solid var(--vpc-border);
    border-radius: var(--vpc-radius-sm);
    min-height: 42px;
    transition: background-color 0.15s, border-color 0.15s, box-shadow 0.15s;
}

#vitaminIuPpmConverter .vpc-field select {
    color: var(--vpc-text);
    font-family: var(--vpc-sans);
    font-size: 13px;
    font-weight: 650;
    max-width: 100%;
    min-width: 0;
    padding: 9px 10px;
    width: 100%;
}

#vitaminIuPpmConverter .vpc-field select:focus,
#vitaminIuPpmConverter .vpc-input-box:focus-within {
    background: #fff;
    border-color: var(--vpc-accent);
    box-shadow: 0 0 0 3px rgba(184, 134, 11, 0.12);
    outline: none;
}

#vitaminIuPpmConverter .vpc-input-box {
    align-items: center;
    display: flex;
    overflow: hidden;
}

#vitaminIuPpmConverter .vpc-input-box input {
    background: transparent;
    border: 0;
    color: var(--vpc-text);
    flex: 1;
    font-family: var(--vpc-mono);
    font-size: 15px;
    font-weight: 800;
    min-width: 0;
    outline: none;
    padding: 9px 10px;
    width: 100%;
}

#vitaminIuPpmConverter .vpc-unit {
    align-items: center;
    align-self: stretch;
    background: #fff;
    border-left: 1px solid var(--vpc-border);
    color: var(--vpc-muted);
    display: flex;
    font-family: var(--vpc-mono);
    font-size: 12px;
    font-weight: 800;
    justify-content: center;
    min-width: 42px;
    padding: 0 9px;
    white-space: nowrap;
}

#vitaminIuPpmConverter .vpc-preset-row {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
}

#vitaminIuPpmConverter .vpc-preset-label {
    color: var(--vpc-muted);
    font-size: 11px;
    font-weight: 700;
    margin-right: 2px;
}

#vitaminIuPpmConverter .vpc-preset {
    background: #fff;
    border: 1.5px solid var(--vpc-border);
    border-radius: 999px;
    color: var(--vpc-muted);
    cursor: pointer;
    font-family: var(--vpc-sans);
    font-size: 12px;
    font-weight: 750;
    padding: 5px 10px;
    transition: background-color 0.12s, border-color 0.12s, color 0.12s, transform 0.12s;
}

#vitaminIuPpmConverter .vpc-preset:hover,
#vitaminIuPpmConverter .vpc-preset:focus-visible {
    border-color: var(--vpc-accent);
    color: var(--vpc-accent-strong);
    outline: none;
    transform: translateY(-1px);
}

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

#vitaminIuPpmConverter .vpc-action-row {
    align-items: center;
    border-top: 1px solid var(--vpc-border);
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    padding-top: 2px;
}

#vitaminIuPpmConverter .vpc-btn {
    border-radius: var(--vpc-radius-sm);
    cursor: pointer;
    font-family: var(--vpc-sans);
    font-size: 13px;
    font-weight: 800;
    min-height: 38px;
    padding: 8px 16px;
    transition: background-color 0.12s, border-color 0.12s, color 0.12s;
}

#vitaminIuPpmConverter .vpc-btn-ghost {
    background: #fff;
    border: 1.5px solid var(--vpc-border);
    color: var(--vpc-muted);
}

#vitaminIuPpmConverter .vpc-btn-ghost:hover,
#vitaminIuPpmConverter .vpc-btn-ghost:focus-visible {
    background: var(--vpc-accent-light);
    border-color: var(--vpc-accent-mid);
    color: var(--vpc-accent-strong);
    outline: none;
}

#vitaminIuPpmConverter .vpc-validation {
    color: var(--vpc-danger);
    font-size: 12px;
    line-height: 1.45;
    margin: -6px 0 0;
}

#vitaminIuPpmConverter .vpc-validation:empty {
    display: none;
}

#vitaminIuPpmConverter .vpc-results-grid,
#vitaminIuPpmConverter .vpc-tables-grid {
    display: grid;
    gap: 12px;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
}

#vitaminIuPpmConverter .vpc-main-card {
    background: linear-gradient(135deg, #fff9e8 0%, #f3df91 100%);
    border: 1px solid var(--vpc-accent-mid);
    border-radius: var(--vpc-radius);
    box-shadow: var(--vpc-shadow);
    display: grid;
    gap: 11px;
    min-width: 0;
    overflow: hidden;
    padding: 18px;
    position: relative;
}

#vitaminIuPpmConverter .vpc-main-card::after {
    background: rgba(255,255,255,0.35);
    border-radius: 999px;
    content: "";
    height: 120px;
    position: absolute;
    right: -42px;
    top: -52px;
    width: 120px;
}

#vitaminIuPpmConverter .vpc-main-label,
#vitaminIuPpmConverter .vpc-main-value,
#vitaminIuPpmConverter .vpc-main-sub,
#vitaminIuPpmConverter .vpc-main-metrics {
    position: relative;
    z-index: 1;
}

#vitaminIuPpmConverter .vpc-main-value {
    color: var(--vpc-accent-strong);
    font-family: var(--vpc-mono);
    font-size: clamp(30px, 4.5vw, 46px);
    font-weight: 900;
    letter-spacing: -0.06em;
    line-height: 0.98;
}

#vitaminIuPpmConverter .vpc-main-value small {
    color: var(--vpc-muted);
    font-family: var(--vpc-mono);
    font-size: 0.36em;
    letter-spacing: 0;
    margin-left: 4px;
}

#vitaminIuPpmConverter .vpc-main-sub {
    color: var(--vpc-muted);
    font-size: 12px;
    font-weight: 650;
}

#vitaminIuPpmConverter .vpc-main-metrics {
    display: grid;
    gap: 8px;
    grid-template-columns: repeat(3, minmax(0, 1fr));
}

#vitaminIuPpmConverter .vpc-main-metrics div {
    background: rgba(255,255,255,0.55);
    border: 1px solid rgba(232, 228, 220, 0.8);
    border-radius: 8px;
    display: grid;
    gap: 3px;
    min-width: 0;
    padding: 8px;
}

#vitaminIuPpmConverter .vpc-main-metrics span {
    color: var(--vpc-muted);
    font-size: 10.5px;
    font-weight: 750;
}

#vitaminIuPpmConverter .vpc-main-metrics strong {
    color: var(--vpc-text);
    font-family: var(--vpc-mono);
    font-size: 14px;
    overflow-wrap: anywhere;
}

#vitaminIuPpmConverter .vpc-metric-grid {
    display: grid;
    gap: 10px;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    min-width: 0;
}

#vitaminIuPpmConverter .vpc-metric-card {
    background: var(--vpc-surface);
    border: 1px solid var(--vpc-border);
    border-radius: var(--vpc-radius);
    box-shadow: var(--vpc-shadow);
    display: grid;
    gap: 5px;
    min-width: 0;
    padding: 13px 14px;
}

#vitaminIuPpmConverter .vpc-metric-card strong {
    color: var(--vpc-text);
    font-family: var(--vpc-mono);
    font-size: 20px;
    font-weight: 900;
    letter-spacing: -0.04em;
    overflow-wrap: anywhere;
}

#vitaminIuPpmConverter .vpc-metric-card small {
    color: var(--vpc-muted);
    font-size: 11.5px;
}

#vitaminIuPpmConverter .vpc-table-card {
    display: grid;
    gap: 10px;
    min-width: 0;
    padding: 15px;
}

#vitaminIuPpmConverter .vpc-card-head {
    display: grid;
    gap: 3px;
}

#vitaminIuPpmConverter .vpc-card-head h3 {
    color: var(--vpc-text);
    font-size: 15px;
    font-weight: 800;
    line-height: 1.3;
    margin: 0;
}

#vitaminIuPpmConverter .vpc-card-head p {
    color: var(--vpc-muted);
    font-size: 12px;
    margin: 0;
}

#vitaminIuPpmConverter .vpc-table-scroll {
    max-width: 100%;
    overflow-x: auto;
}

#vitaminIuPpmConverter .vpc-table {
    border-collapse: collapse;
    width: 100%;
}

#vitaminIuPpmConverter .vpc-table th,
#vitaminIuPpmConverter .vpc-table td {
    border-bottom: 1px solid var(--vpc-border);
    color: var(--vpc-text);
    font-size: 12px;
    padding: 7px 6px;
    text-align: left;
    vertical-align: top;
}

#vitaminIuPpmConverter .vpc-table th {
    color: var(--vpc-muted);
    font-size: 10.5px;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

#vitaminIuPpmConverter .vpc-table td:nth-child(2),
#vitaminIuPpmConverter .vpc-table .vpc-num {
    font-family: var(--vpc-mono);
    font-weight: 800;
    text-align: right;
    white-space: nowrap;
}

#vitaminIuPpmConverter .vpc-table tr:last-child td {
    border-bottom: 0;
}

#vitaminIuPpmConverter .vpc-table tr.vpc-highlight td {
    background: var(--vpc-accent-light);
    color: var(--vpc-accent-strong);
}

#vitaminIuPpmConverter .vpc-note-card {
    align-items: flex-start;
    display: flex;
    gap: 10px;
    padding: 13px 15px;
}

#vitaminIuPpmConverter .vpc-note-icon {
    align-items: center;
    background: var(--vpc-accent-light);
    border: 1px solid var(--vpc-accent-mid);
    border-radius: 50%;
    color: var(--vpc-accent-strong);
    display: inline-flex;
    flex: 0 0 24px;
    font-family: var(--vpc-mono);
    font-size: 13px;
    font-weight: 900;
    height: 24px;
    justify-content: center;
}

#vitaminIuPpmConverter .vpc-note-card p {
    color: var(--vpc-muted);
    font-size: 12.5px;
    margin: 0;
}

@media (max-width: 900px) {
    #vitaminIuPpmConverter {
        max-width: 100%;
        overflow-x: hidden;
        padding: 20px 12px 36px;
    }

    #vitaminIuPpmConverter .vpc-tool-header {
        align-items: flex-start;
        flex-direction: column;
    }

    #vitaminIuPpmConverter .vpc-input-grid,
    #vitaminIuPpmConverter .vpc-results-grid,
    #vitaminIuPpmConverter .vpc-tables-grid {
        grid-template-columns: 1fr;
    }

    #vitaminIuPpmConverter .vpc-field select,
    #vitaminIuPpmConverter .vpc-input-box input:not([type="radio"]):not([type="checkbox"]) {
        max-width: 100% !important;
        width: 100% !important;
    }
}

@media (max-width: 520px) {
    #vitaminIuPpmConverter .vpc-input-panel,
    #vitaminIuPpmConverter .vpc-table-card,
    #vitaminIuPpmConverter .vpc-main-card {
        padding: 13px;
    }

    #vitaminIuPpmConverter .vpc-metric-grid,
    #vitaminIuPpmConverter .vpc-main-metrics {
        grid-template-columns: 1fr;
    }

    #vitaminIuPpmConverter .vpc-action-row {
        align-items: stretch;
        flex-direction: column;
    }

    #vitaminIuPpmConverter .vpc-btn {
        width: 100%;
    }

    #vitaminIuPpmConverter .vpc-badge {
        white-space: normal;
    }
}

@media (prefers-reduced-motion: reduce) {
    #vitaminIuPpmConverter .vpc-preset,
    #vitaminIuPpmConverter .vpc-btn,
    #vitaminIuPpmConverter .vpc-field select,
    #vitaminIuPpmConverter .vpc-input-box {
        transition: none;
    }
}