html,
body {
    width: 100%;
    overflow-x: hidden;
}

.zk-page {
    min-height: 100vh;
    padding-top: 72px;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
}

.zk-main {
    width: min(1200px, calc(100% - 32px));
    margin: 0 auto;
    padding: var(--space-5) 0 var(--space-7);
    display: flex;
    flex-direction: column;
    gap: var(--space-5);
}

.zk-hero {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    gap: var(--space-4);
    align-items: center;
    padding-top: var(--space-2);
}

.zk-disclaimer,
.zk-calculator,
.zk-guide {
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    background: var(--color-white);
    box-shadow: var(--shadow-raised);
}

.zk-hero-copy {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-2);
    min-width: 0;
}

.zk-eyebrow,
.zk-section-kicker {
    margin: 0;
    color: var(--color-primary);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
    line-height: var(--line-height-caption);
    letter-spacing: 1px;
    text-transform: uppercase;
}

.zk-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
}

.zk-hero h1,
.zk-section-head h2 {
    margin: 0;
    color: var(--color-text-primary);
    font-family: var(--font-family-display);
    letter-spacing: 0;
}

.zk-hero h1 {
    max-width: 720px;
    font-size: clamp(36px, 6vw, 64px);
    font-weight: var(--font-weight-regular);
    line-height: 1.02;
}

.zk-lead,
.zk-section-head p,
.zk-disclaimer p,
.zk-form-head p,
.zk-guide-card p,
.zk-source p {
    margin: 0;
    color: var(--color-neutral-dark);
    font-size: var(--font-size-body);
    line-height: var(--line-height-body);
}

.zk-lead {
    max-width: 620px;
}

.zk-disclaimer {
    padding: var(--space-3);
    border-left: 6px solid var(--color-primary);
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: var(--space-1);
}

.zk-disclaimer strong {
    font-size: 16px;
}

.zk-calculator,
.zk-guide {
    padding: var(--space-4);
}

.zk-section-head {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    margin-bottom: var(--space-3);
}

.zk-section-head h2 {
    font-size: var(--font-size-h2);
    line-height: var(--line-height-h2);
}

.zk-tabs {
    display: flex;
    gap: var(--space-1);
    overflow-x: auto;
    padding: 0 0 var(--space-2);
    margin-bottom: var(--space-3);
    scrollbar-width: thin;
}

.zk-tab {
    flex: 0 0 auto;
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-1);
    padding: 12px 18px;
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-xl);
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    font-weight: var(--font-weight-bold);
    font-family: var(--font-family-body);
    cursor: pointer;
    transition: background var(--transition-default), color var(--transition-default), border-color var(--transition-default);
}

.zk-tab:hover,
.zk-tab.is-active {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.zk-panels {
    min-width: 0;
}

.zk-panel {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
    gap: var(--space-3);
    align-items: start;
}

.zk-panel[hidden] {
    display: none;
}

.zk-form-card {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-3);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    background: var(--color-white);
}

.zk-form-head {
    display: flex;
    align-items: flex-start;
    gap: var(--space-2);
    padding-bottom: var(--space-2);
    border-bottom: 1px solid var(--color-border-muted);
}

.zk-form-head h3 {
    margin: 0 0 4px;
    font-size: 18px;
    line-height: 24px;
}

.zk-form-icon {
    flex: 0 0 auto;
    width: 44px;
    height: 44px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-primary) 10%, var(--color-white));
    color: var(--color-primary);
}

.zk-form-icon--gold {
    background: color-mix(in srgb, #F7B70F 16%, var(--color-white));
    color: #A16207;
}

.zk-form-icon--purple {
    background: color-mix(in srgb, var(--color-accent-purple-1) 10%, var(--color-white));
    color: var(--color-accent-purple-1);
}

.zk-form-icon--green {
    background: color-mix(in srgb, #16A34A 10%, var(--color-white));
    color: #16A34A;
}

.zk-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-2);
}

.zk-field {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.zk-field label,
.zk-toggle-group legend {
    color: var(--color-text-primary);
    font-size: var(--font-size-label);
    font-weight: var(--font-weight-semibold);
    line-height: var(--line-height-label);
}

.zk-field small {
    color: var(--color-neutral-dark);
    font-size: var(--font-size-caption);
    line-height: 18px;
}

.zk-money-field,
.zk-unit-field {
    display: flex;
    align-items: center;
    min-height: 52px;
    border: 1px solid var(--color-input-border);
    border-radius: var(--radius-md);
    background: var(--color-input-bg);
    color: var(--color-input-text);
    overflow: hidden;
}

.zk-money-field span,
.zk-unit-field span {
    flex: 0 0 auto;
    padding-left: var(--space-2);
    color: var(--color-primary);
    font-weight: var(--font-weight-bold);
}

.zk-unit-field span {
    padding-right: var(--space-2);
    color: var(--color-input-placeholder);
}

.zk-money-field input,
.zk-unit-field input {
    appearance: none;
    -webkit-appearance: none;
    width: 100%;
    min-width: 0;
    height: 50px;
    border: 0;
    outline: 0;
    box-shadow: none;
    background: transparent;
    color: var(--color-input-text);
    padding: 12px 16px;
    font-size: 16px;
    font-weight: var(--font-weight-bold);
}

.zk-money-field input:focus,
.zk-money-field input:focus-visible,
.zk-unit-field input:focus,
.zk-unit-field input:focus-visible {
    outline: none;
    box-shadow: none;
}

.zk-money-field:focus-within,
.zk-unit-field:focus-within {
    border-color: var(--color-primary);
    box-shadow: var(--shadow-focus-ring);
}

.zk-inline-link {
    color: var(--color-primary);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
}

.zk-inline-link:hover {
    text-decoration: underline;
}

.zk-toggle-group {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: var(--space-1);
    padding: 0;
    border: 0;
}

.zk-toggle-group legend {
    grid-column: 1 / -1;
    margin-bottom: 2px;
}

.zk-toggle-group label {
    min-height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    background: var(--color-bg-primary);
    cursor: pointer;
}

.zk-toggle-group input {
    position: absolute;
    opacity: 0;
}

.zk-toggle-group label:has(input:checked) {
    background: var(--color-primary);
    color: var(--color-white);
    border-color: var(--color-primary);
}

.zk-result {
    position: sticky;
    top: calc(72px + var(--space-3));
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.zk-result-main {
    padding: var(--space-3);
    border-radius: var(--radius-md);
    background: var(--color-primary-dark);
    color: var(--color-bg-primary);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
}

.zk-status-chip {
    display: inline-flex;
    align-items: center;
    width: fit-content;
    min-height: 28px;
    padding: 4px 12px;
    border-radius: var(--radius-xl);
    background: rgba(243, 242, 240, 0.12);
    color: rgba(243, 242, 240, 0.82);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
}

.zk-status-chip--wajib {
    background: rgba(22, 163, 74, 0.18);
    color: #86EFAC;
}

.zk-result-label {
    display: block;
    margin-top: var(--space-3);
    color: rgba(243, 242, 240, 0.72);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
}

.zk-result-value {
    display: block;
    margin-top: var(--space-1);
    color: var(--color-primary);
    font-family: var(--font-family-display);
    font-size: clamp(32px, 5vw, 48px);
    line-height: 1.05;
    overflow-wrap: anywhere;
}

.zk-breakdown {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
    padding: var(--space-3);
    border: 1px solid var(--color-border-muted);
    border-radius: var(--radius-md);
    background: var(--color-white);
}

.zk-breakdown-row {
    display: flex;
    justify-content: space-between;
    gap: var(--space-2);
    padding-bottom: var(--space-1);
    border-bottom: 1px solid var(--color-border-muted);
    color: var(--color-neutral-dark);
    font-size: 14px;
    line-height: 22px;
}

.zk-breakdown-row:last-child {
    padding-bottom: 0;
    border-bottom: 0;
}

.zk-breakdown-row strong {
    color: var(--color-text-primary);
    text-align: right;
    overflow-wrap: anywhere;
}

.zk-result-actions {
    display: grid;
    grid-template-columns: 1fr auto;
    gap: var(--space-1);
}

.zk-pay-btn,
.zk-reset-btn {
    min-height: 48px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 12px 20px;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-button);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
}

.zk-pay-btn {
    background: var(--color-primary);
    color: var(--color-white) !important;
}

.zk-pay-btn:hover {
    background: var(--color-primary-hover);
    text-decoration: none;
}

.zk-reset-btn {
    border: 1px solid var(--color-border-muted);
    background: var(--color-white);
    color: var(--color-text-primary);
    cursor: pointer;
}

.zk-guide-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: var(--space-2);
}

.zk-guide-card {
    padding: var(--space-3);
    border: 1px solid color-mix(in srgb, var(--color-primary) 18%, var(--color-border-muted));
    border-radius: var(--radius-md);
    background: color-mix(in srgb, var(--color-primary) 4%, var(--color-white));
}

.zk-guide-card--gold {
    border-color: color-mix(in srgb, #F7B70F 28%, var(--color-border-muted));
    background: color-mix(in srgb, #F7B70F 8%, var(--color-white));
}

.zk-guide-card--purple {
    border-color: color-mix(in srgb, var(--color-accent-purple-1) 20%, var(--color-border-muted));
    background: color-mix(in srgb, var(--color-accent-purple-1) 5%, var(--color-white));
}

.zk-guide-card--green {
    border-color: color-mix(in srgb, #16A34A 22%, var(--color-border-muted));
    background: color-mix(in srgb, #16A34A 5%, var(--color-white));
}

.zk-guide-card span {
    color: var(--color-primary);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
    text-transform: uppercase;
}

.zk-guide-card strong {
    display: block;
    margin: var(--space-1) 0;
    font-size: 16px;
}

.zk-source {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border-muted);
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
}

.zk-source div {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.zk-source a {
    color: var(--color-primary);
    font-size: var(--font-size-caption);
    font-weight: var(--font-weight-bold);
    text-decoration: none;
}

.zk-source a:hover {
    text-decoration: underline;
}

@media (max-width: 1023px) {
    .zk-hero,
    .zk-panel {
        grid-template-columns: 1fr;
    }

    .zk-result {
        position: static;
    }

    .zk-guide-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 639px) {
    .zk-page {
        padding-top: 64px;
    }

    .zk-main {
        width: min(100% - 24px, 1200px);
        padding-top: var(--space-3);
        gap: var(--space-3);
    }

    .zk-disclaimer,
    .zk-calculator,
    .zk-guide,
    .zk-form-card,
    .zk-result-main,
    .zk-breakdown {
        padding: var(--space-2);
    }

    .zk-hero h1 {
        font-size: 36px;
        line-height: 40px;
    }

    .zk-tabs {
        margin-inline: calc(var(--space-2) * -1);
        padding-inline: var(--space-2);
    }

    .zk-tab {
        padding: 10px 14px;
        font-size: 13px;
    }

    .zk-form-grid,
    .zk-toggle-group,
    .zk-result-actions,
    .zk-guide-grid {
        grid-template-columns: 1fr;
    }

    .zk-result-value {
        font-size: 34px;
    }

    .zk-source {
        align-items: flex-start;
        flex-direction: column;
    }
}