.pk-tax-hero {
    position: relative;
    overflow: hidden;
    background: #f8fafc;
    color: #0f172a;
    padding: 5.5rem 0 6.5rem;
    z-index: 1;
    transition: background-color 0.3s ease;
}

/* Light mode mesh gradients */
.pk-tax-hero::before {
    content: '';
    position: absolute;
    top: -50%; left: -20%; width: 140%; height: 200%;
    background: 
        radial-gradient(circle at 20% 30%, rgba(16, 185, 129, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 70%, rgba(14, 165, 233, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(244, 244, 245, 0.5) 0%, transparent 50%);
    z-index: -1;
    pointer-events: none;
    animation: meshFlow 15s ease-in-out infinite alternate;
}

.pk-tax-hero__title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.25rem;
    background: linear-gradient(135deg, #064e3b 0%, #047857 50%, #0369a1 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #064e3b;
    animation: cpfHeroFadeUp 0.6s ease-out;
}

.pk-tax-hero__desc {
    font-size: 1.15rem;
    line-height: 1.6;
    color: #475569;
    max-width: 42rem;
    margin: 0 auto;
    animation: cpfHeroFadeUp 0.8s ease-out;
}

.pk-tax-hero__mark {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(16, 185, 129, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.05);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 999px;
    padding: 0.45rem 1.25rem;
    font-size: 0.85rem;
    font-weight: 700;
    color: #064e3b;
    margin-bottom: 1.5rem;
    animation: cpfHeroFadeDown 0.6s ease-out;
}

.pk-tax-hero__mark-dot {
    width: 8px;
    height: 8px;
    background-color: #10b981;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(16, 185, 129, 0.6);
    animation: pkTaxPulseLight 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

/* Dark Mode Overrides */
.dark .pk-tax-hero {
    background: #020617;
    color: #f8fafc;
}

.dark .pk-tax-hero::before {
    background: 
        radial-gradient(circle at 20% 30%, rgba(16, 185, 129, 0.2) 0%, transparent 45%),
        radial-gradient(circle at 80% 70%, rgba(14, 165, 233, 0.15) 0%, transparent 45%),
        radial-gradient(circle at 50% 50%, rgba(2, 6, 23, 0.8) 0%, transparent 50%);
}

.dark .pk-tax-hero__title {
    background: linear-gradient(135deg, #ffffff 0%, #a7f3d0 50%, #7dd3fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    color: #ffffff;
    text-shadow: none;
}

.dark .pk-tax-hero__desc {
    color: #94a3b8;
}

.dark .pk-tax-hero__mark {
    background: rgba(15, 23, 42, 0.6);
    border: 1px solid rgba(52, 211, 153, 0.2);
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.2);
    color: #e2e8f0;
}

.dark .pk-tax-hero__mark-dot {
    background-color: #34d399;
    box-shadow: 0 0 10px rgba(52, 211, 153, 0.6);
    animation: pkTaxPulseDark 2s cubic-bezier(0.4, 0, 0.6, 1) infinite;
}

@keyframes meshFlow {
    0% { transform: translate(0, 0) scale(1); }
    50% { transform: translate(-2%, 3%) scale(1.02); }
    100% { transform: translate(2%, -2%) scale(1.05); }
}

@keyframes pkTaxPulseLight {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 10px rgba(16, 185, 129, 0.6); }
    50% { opacity: 0.6; transform: scale(1.2); box-shadow: 0 0 15px rgba(16, 185, 129, 0.9); }
}

@keyframes pkTaxPulseDark {
    0%, 100% { opacity: 1; transform: scale(1); box-shadow: 0 0 10px rgba(52, 211, 153, 0.6); }
    50% { opacity: 0.6; transform: scale(1.2); box-shadow: 0 0 15px rgba(52, 211, 153, 0.9); }
}

@keyframes cpfHeroFadeUp {
    from { opacity: 0; transform: translateY(14px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes cpfHeroFadeDown {
    from { opacity: 0; transform: translateY(-8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.pk-tax-shell {
    display: grid;
    gap: 2rem;
    grid-template-columns: minmax(0, 0.92fr) minmax(0, 1.08fr);
}

.pk-tax-card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    box-shadow: var(--shadow-sm);
    padding: 1.5rem;
}

.pk-tax-profile-grid {
    display: grid;
    gap: 0.75rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pk-tax-profile {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    color: var(--text-default);
    min-height: 4.25rem;
    padding: 0.8rem;
    text-align: left;
    transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.pk-tax-profile:hover {
    border-color: var(--color-primary);
}

.pk-tax-profile:focus-visible {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.2);
    outline: 0;
}

.pk-tax-profile.is-active {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.14);
}

.pk-tax-profile__title {
    color: var(--text-strong);
    display: block;
    font-size: 0.94rem;
    font-weight: 800;
    line-height: 1.25;
}

.pk-tax-profile__hint {
    color: var(--text-subtle);
    display: block;
    font-size: 0.77rem;
    line-height: 1.35;
    margin-top: 0.3rem;
}

.pk-tax-help {
    background: rgba(37, 99, 235, 0.08);
    background: color-mix(in srgb, var(--color-primary) 8%, transparent);
    border: 1px solid rgba(37, 99, 235, 0.22);
    border-color: color-mix(in srgb, var(--color-primary) 22%, transparent);
    border-radius: 8px;
    color: var(--text-default);
    font-size: 0.88rem;
    line-height: 1.55;
    padding: 0.85rem;
}

.pk-tax-error {
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 8px;
    color: #991b1b;
    font-size: 0.9rem;
    padding: 0.85rem;
}

.dark .pk-tax-error {
    background: rgba(127, 29, 29, 0.22);
    border-color: rgba(248, 113, 113, 0.32);
    color: #fecaca;
}

.pk-tax-result-grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(2, minmax(0, 1fr));
}

.pk-tax-metric {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 8px;
    min-height: 7rem;
    padding: 1rem;
}

.pk-tax-metric--primary {
    background: linear-gradient(135deg, rgba(37, 99, 235, 0.12), rgba(20, 83, 45, 0.08));
    border-color: rgba(37, 99, 235, 0.32);
    border-color: color-mix(in srgb, var(--color-primary) 32%, var(--color-border));
}

.pk-tax-metric__label {
    color: var(--text-subtle);
    font-size: 0.78rem;
    font-weight: 700;
    line-height: 1.3;
    margin-bottom: 0.4rem;
}

.pk-tax-metric__value {
    color: var(--text-strong);
    font-size: clamp(1.25rem, 2.6vw, 1.9rem);
    font-weight: 900;
    line-height: 1.15;
    overflow-wrap: anywhere;
}

.pk-tax-status-row {
    align-items: center;
    display: flex;
    flex-wrap: wrap;
    gap: 0.65rem;
    margin-bottom: 1rem;
}

.pk-tax-badge {
    background: var(--color-bg);
    border: 1px solid var(--color-border);
    border-radius: 999px;
    color: var(--text-strong);
    display: inline-flex;
    font-size: 0.82rem;
    font-weight: 800;
    padding: 0.42rem 0.72rem;
}

.pk-tax-badge.is-taxable {
    background: #ecfdf5;
    border-color: #a7f3d0;
    color: #047857;
}

.pk-tax-badge.is-not-taxable {
    background: #eff6ff;
    border-color: #bfdbfe;
    color: #1d4ed8;
}

.dark .pk-tax-badge.is-taxable {
    background: rgba(6, 95, 70, 0.2);
    border-color: rgba(52, 211, 153, 0.35);
    color: #a7f3d0;
}

.dark .pk-tax-badge.is-not-taxable {
    background: rgba(30, 64, 175, 0.22);
    border-color: rgba(96, 165, 250, 0.35);
    color: #bfdbfe;
}

.pk-tax-breakdown {
    display: grid;
    gap: 0.75rem;
}

.pk-tax-breakdown__row {
    align-items: center;
    border-bottom: 1px solid var(--color-border);
    display: flex;
    gap: 1rem;
    justify-content: space-between;
    padding-bottom: 0.75rem;
}

.pk-tax-breakdown__row:last-child {
    border-bottom: 0;
    padding-bottom: 0;
}

.pk-tax-breakdown__label {
    color: var(--text-subtle);
    font-size: 0.9rem;
}

.pk-tax-breakdown__value {
    color: var(--text-strong);
    font-size: 0.92rem;
    font-weight: 800;
    text-align: right;
}

.pk-tax-source-list {
    color: var(--text-subtle);
    font-size: 0.86rem;
    line-height: 1.6;
}

.pk-tax-source-list a {
    color: var(--color-primary);
    font-weight: 700;
}

@media (max-width: 1023px) {
    .pk-tax-shell {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 640px) {
    .pk-tax-card {
        padding: 1rem;
    }

    .pk-tax-profile-grid,
    .pk-tax-result-grid {
        grid-template-columns: 1fr;
    }

    .pk-tax-breakdown__row {
        align-items: flex-start;
        flex-direction: column;
        gap: 0.35rem;
    }

    .pk-tax-breakdown__value {
        text-align: left;
    }
}