.cuc-main {
    --cuc-accent: #10b981;
    --cuc-accent-dark: #059669;
    --cuc-accent-light: color-mix(in srgb, #10b981 12%, transparent);
    --cuc-border: #e5e7eb;
    --cuc-panel-bg: #f3f4f6;
    --cuc-text: #111827;
    --cuc-muted: #6b7280;
    padding: 40px 0 80px;
}

/* Hero */
.cuc-hero {
    margin-bottom: 28px;
    text-align: center;
}
.cuc-title {
    font-size: clamp(28px, 4vw, 40px);
    color: var(--cuc-text);
    margin: 0 0 10px;
    line-height: 1.2;
}
.cuc-subtitle {
    color: var(--cuc-muted);
    font-size: 16px;
    margin: 0;
    max-width: 720px;
    margin-inline: auto;
}

/* Tool card */
.cuc-tool-card {
    background: #fff;
    border: 1px solid #ddd;
    border-radius: 16px;
    padding: 28px;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.04);
}

/* Settings panel (soft gray) */
.cuc-settings {
    background: var(--cuc-panel-bg);
    padding: 16px 18px 18px;
    border-radius: 12px;
    margin-bottom: 22px;
}
.cuc-settings-label {
    font-size: 12px;
    color: var(--cuc-muted);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.6px;
    margin-bottom: 12px;
}
.cuc-settings-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 14px;
}
.cuc-setting {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.cuc-setting label {
    font-size: 13px;
    color: var(--cuc-text);
    font-weight: 600;
}

/* Generic input wrapper with right-side unit suffix */
.cuc-input-wrap {
    position: relative;
    display: flex;
    align-items: center;
}
.cuc-unit-suffix {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    font-size: 13px;
    color: var(--cuc-muted);
    font-weight: 600;
    pointer-events: none;
    line-height: 1;
}

/* Inputs — parent theme sets defaults, so we need higher specificity */
.cuc-main .cuc-input {
    width: 100%;
    padding: 11px 42px 11px 14px;
    background: #fff;
    border: 1.5px solid #d1d5db;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    color: var(--cuc-text);
    line-height: 1.3;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04) !important;
    transition: border-color 0.15s, box-shadow 0.15s;
    font-variant-numeric: tabular-nums;
}
.cuc-main .cuc-input::placeholder { color: #9ca3af; font-weight: 400; }
.cuc-main .cuc-input:hover { border-color: #9ca3af; }
.cuc-main .cuc-input:focus {
    outline: none;
    border-color: var(--cuc-accent);
    box-shadow: 0 0 0 3px var(--cuc-accent-light) !important;
}
.cuc-main .cuc-input-setting {
    font-size: 15px;
    padding: 10px 36px 10px 12px;
}

/* Conversion grid */
.cuc-grid {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Row: label | input | copy button */
.cuc-row {
    display: grid;
    grid-template-columns: 220px 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 4px 0;
}
.cuc-row-label {
    font-size: 15px;
    color: var(--cuc-text);
    font-weight: 700;
    display: flex;
    align-items: baseline;
    gap: 10px;
    line-height: 1.3;
}
.cuc-row-desc {
    font-size: 12px;
    color: var(--cuc-muted);
    font-weight: 500;
    letter-spacing: 0;
}

/* Copy button */
.cuc-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 9px 14px;
    background: #fff;
    border: 1.5px solid var(--cuc-border);
    border-radius: 8px;
    color: var(--cuc-text);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
    line-height: 1;
    white-space: nowrap;
}
.cuc-copy-btn:hover {
    background: var(--cuc-accent-light);
    border-color: var(--cuc-accent);
    color: var(--cuc-accent-dark);
}
.cuc-copy-btn:focus-visible {
    outline: 2px solid var(--cuc-accent);
    outline-offset: 2px;
}
.cuc-copy-btn.is-copied {
    background: var(--cuc-accent);
    border-color: var(--cuc-accent);
    color: #fff;
}
.cuc-copy-icon { flex-shrink: 0; }

/* Actions row (precision slider + reset) */
.cuc-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-top: 20px;
    padding-top: 18px;
    border-top: 1px solid var(--cuc-border);
}
.cuc-precision {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--cuc-text);
    font-weight: 600;
}
.cuc-precision label { color: var(--cuc-muted); }
.cuc-precision input[type="range"] {
    width: 140px;
    accent-color: var(--cuc-accent);
}
.cuc-precision-value {
    min-width: 14px;
    text-align: center;
    color: var(--cuc-text);
    font-variant-numeric: tabular-nums;
}

/* Buttons */
.cuc-btn {
    padding: 9px 18px;
    border-radius: 8px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: 1.5px solid transparent;
    transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.cuc-btn-primary {
    background: var(--cuc-accent);
    color: #fff;
    border-color: var(--cuc-accent);
}
.cuc-btn-primary:hover { background: var(--cuc-accent-dark); border-color: var(--cuc-accent-dark); }
.cuc-btn-ghost {
    background: #fff;
    color: var(--cuc-text);
    border-color: var(--cuc-border);
}
.cuc-btn-ghost:hover { background: #f9fafb; border-color: #d1d5db; }
.cuc-btn:focus-visible {
    outline: 2px solid var(--cuc-accent);
    outline-offset: 2px;
}

/* SEO content section — flat separator */
.cuc-seo-content {
    padding-top: 36px;
    border-top: 1px solid var(--cuc-border);
    margin-top: 54px;
}
.cuc-seo-content-inner { max-width: none; }

/* FAQ section — flat separator */
.cuc-faq {
    padding-top: 36px;
    border-top: 1px solid var(--cuc-border);
    margin-top: 54px;
}
.cuc-faq-inner {
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
    box-shadow: none;
    max-width: none;
}
.cuc-faq-title {
    font-size: 24px;
    margin: 0 0 16px;
    color: var(--cuc-text);
}
.cuc-faq-item {
    border-bottom: 1px solid var(--cuc-border);
    padding: 14px 0;
}
.cuc-faq-item:last-child { border-bottom: none; }
.cuc-faq-q {
    font-weight: 600;
    color: var(--cuc-text);
    cursor: pointer;
    list-style: none;
    padding-right: 24px;
    position: relative;
}
.cuc-faq-q::-webkit-details-marker { display: none; }
.cuc-faq-q::after {
    content: "+";
    position: absolute;
    right: 0;
    top: 0;
    font-size: 20px;
    color: var(--cuc-muted);
    transition: transform 0.15s;
}
.cuc-faq-item[open] .cuc-faq-q::after { content: "−"; }
.cuc-faq-a {
    color: var(--cuc-muted);
    margin-top: 10px;
    line-height: 1.6;
}

/* Tablet */
@media (max-width: 900px) {
    .cuc-settings-grid {
        grid-template-columns: repeat(3, 1fr);
        gap: 10px;
    }
    .cuc-row {
        grid-template-columns: 180px 1fr auto;
        gap: 10px;
    }
}

/* Mobile */
@media (max-width: 640px) {
    .cuc-tool-card { padding: 20px; }
    .cuc-settings-grid {
        grid-template-columns: 1fr;
        gap: 10px;
    }
    .cuc-row {
        grid-template-columns: 1fr auto;
        grid-template-areas:
            "label label"
            "input copy";
        gap: 8px;
    }
    .cuc-row-label { grid-area: label; }
    .cuc-row .cuc-input-wrap { grid-area: input; }
    .cuc-row .cuc-copy-btn { grid-area: copy; }
    .cuc-copy-text { display: none; }
    .cuc-copy-btn { padding: 9px 12px; }
    .cuc-actions { flex-direction: column; align-items: stretch; gap: 12px; }
    .cuc-precision { justify-content: space-between; }
    .cuc-precision input[type="range"] { flex: 1; max-width: none; }
    /* DO NOT add background/border/radius/shadow to .cuc-faq-inner here */
}