/* ============================================================================
   PREMIUM PAGE - LAYOUT
   ============================================================================ */

.premium-page {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px 40px;
}

/* Alert banners */
.premium-alert {
    border-radius: var(--radius-xs);
    padding: 16px;
    margin-bottom: 24px;
    text-align: center;
}

.premium-alert p {
    margin: 0;
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
}

.premium-alert-info {
    background: var(--colour-premium-bg);
    color: var(--colour-text);
}

.premium-alert-error {
    background: rgba(239, 68, 68, 0.1);
    color: #ef4444;
}

/* ============================================================================
   HERO SECTION
   ============================================================================ */

.premium-hero {
    text-align: center;
    margin-bottom: 64px;
    padding-top: 40px;
}

.premium-hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--colour-premium);
    font-family: var(--font-header);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-md);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 24px;
}

.premium-hero-badge svg {
    width: 24px;
    height: 24px;
}

.premium-hero-title {
    font-family: var(--font-header);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-lg);
    color: var(--colour-text);
    margin: 0 0 16px;
    line-height: 1.1;
}

.premium-hero-subtitle {
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
    color: var(--colour-text);
    opacity: 0.7;
    max-width: 560px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ============================================================================
   PRICING CARD
   ============================================================================ */

.premium-pricing {
    display: flex;
    justify-content: center;
    margin-bottom: 80px;
}

.pricing-card-single {
    background: var(--colour-paper);
    border-radius: var(--radius-sm);
    padding: 40px;
    max-width: 480px;
    width: 100%;
    box-shadow:
        0 20px 30px rgba(0,0,0,0.15),
        0 8px 10px rgba(0,0,0,0.10);
    border: 2px solid var(--colour-premium);
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing-card-single:hover {
    transform: translateY(-4px);
    box-shadow:
        0 24px 38px rgba(0, 0, 0, 0.20),
        0 12px 16px rgba(0, 0, 0, 0.14);
}

/* Billing Toggle */
.billing-toggle {
    display: flex;
    position: relative;
    background: var(--colour-bg);
    border-radius: var(--radius-xs);
    padding: 4px;
    margin-bottom: 32px;
}

.billing-option {
    flex: 1;
    padding: 10px 20px;
    border: none;
    background: transparent;
    font-family: var(--font-header);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-md);
    cursor: pointer;
    position: relative;
    z-index: 1;
    color: var(--colour-text);
    opacity: 0.6;
    transition: opacity 0.3s ease, color 0.3s ease;
    border-radius: calc(var(--radius-xs) - 4px);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.billing-option.active {
    opacity: 1;
    font-weight: var(--font-weight-lg);
}

.billing-toggle-slider {
    position: absolute;
    height: calc(100% - 8px);
    width: calc(50% - 4px);
    top: 4px;
    left: 4px;
    background: var(--colour-paper);
    border-radius: calc(var(--radius-xs) - 4px);
    transition: left 0.3s ease;
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.1);
    pointer-events: none;
    z-index: 0;
}

.billing-toggle-slider.annual {
    left: calc(50% + 0px);
}

.savings-pill {
    display: inline-block;
    background: var(--colour-premium);
    color: #1a1a1a;
    font-size: 10px;
    font-weight: var(--font-weight-lg);
    padding: 2px 8px;
    border-radius: 12px;
    line-height: 1.4;
}

/* Price Display */
.pricing-display {
    margin-bottom: 32px;
}

.pricing-amount {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 4px;
    margin-bottom: 8px;
}

.price-currency {
    font-family: var(--font-header);
    font-size: var(--text-md);
    font-weight: var(--font-weight-lg);
    color: var(--colour-text);
    opacity: 0.6;
}

.price-value {
    font-family: var(--font-header);
    font-size: var(--text-xl);
    font-weight: var(--font-weight-lg);
    color: var(--colour-text);
    line-height: 1;
}

.price-period {
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
    color: var(--colour-text);
    opacity: 0.6;
}

.pricing-billing-note {
    font-family: var(--font-paragraph);
    font-size: var(--text-xs);
    color: var(--colour-text);
    opacity: 0.5;
    margin: 0;
}

/* Feature List inside pricing card */
.pricing-features-list {
    list-style: none;
    padding: 0;
    margin: 0 0 32px;
    text-align: left;
}

.pricing-features-list li {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 0;
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
    color: var(--colour-text);
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
}

.pricing-features-list li:last-child {
    border-bottom: none;
}

.pricing-features-list .check-icon {
    width: 20px;
    height: 20px;
    color: var(--colour-premium);
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
    flex-shrink: 0;
}

/* CTA Button */
.btn-premium-cta {
    width: 100%;
    padding: 16px 32px;
    background: var(--colour-premium);
    color: #1a1a1a;
    border: none;
    border-radius: var(--radius-xs);
    font-family: var(--font-header);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-lg);
    cursor: pointer;
    transition: background 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}

.btn-premium-cta:hover {
    background: var(--colour-premium-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 16px rgba(212, 168, 75, 0.4);
}

.btn-premium-cta:focus-visible {
    outline: 3px solid var(--colour-accent);
    outline-offset: 2px;
}

.btn-premium-cta:active {
    transform: translateY(0);
}

.btn-premium-cta.disabled {
    opacity: 0.6;
    cursor: default;
    pointer-events: none;
}

/* ============================================================================
   FEATURE GRID
   ============================================================================ */

.premium-features {
    margin-bottom: 80px;
}

.section-label {
    text-align: center;
    font-family: var(--font-header);
    font-size: var(--text-xs);
    font-weight: var(--font-weight-md);
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--colour-premium);
    margin-bottom: 12px;
}

.section-heading {
    text-align: center;
    font-family: var(--font-header);
    font-size: var(--text-md);
    font-weight: var(--font-weight-lg);
    color: var(--colour-text);
    margin: 0 auto 48px;
    max-width: 600px;
}

.feature-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--colour-paper);
    border-radius: var(--radius-sm);
    padding: 28px;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.feature-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
}

.feature-icon {
    width: 48px;
    height: 48px;
    background: var(--colour-premium-bg);
    border-radius: var(--radius-xs);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 16px;
    color: var(--colour-premium);
}

.feature-icon svg {
    width: 24px;
    height: 24px;
}

.feature-card h3 {
    font-family: var(--font-header);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-md);
    margin: 0 0 8px;
    color: var(--colour-text);
}

.feature-card p {
    font-family: var(--font-paragraph);
    font-size: var(--text-xs);
    color: var(--colour-text);
    opacity: 0.7;
    margin: 0;
    line-height: 1.6;
}

/* ============================================================================
   COMPARISON TABLE
   ============================================================================ */

.premium-comparison {
    margin-bottom: 80px;
}

.comparison-table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.comparison-table {
    width: 100%;
    border-collapse: collapse;
    font-family: var(--font-paragraph);
}

.comparison-table thead th {
    font-family: var(--font-header);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-md);
    padding: 16px 20px;
    text-align: center;
    border-bottom: 2px solid var(--colour-muted);
    color: var(--colour-text);
}

.comparison-table .feature-col {
    text-align: left;
    width: 50%;
}

.comparison-table .plan-col {
    width: 25%;
    text-align: center;
}

.comparison-table .plan-premium {
    color: var(--colour-premium);
}

.comparison-table thead .plan-premium {
    background: var(--colour-premium-bg);
    border-radius: var(--radius-xs) var(--radius-xs) 0 0;
}

.comparison-table tbody td {
    padding: 14px 20px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    font-size: var(--text-sm);
    color: var(--colour-text);
    text-align: center;
    vertical-align: middle;
}

.comparison-table tbody td:first-child {
    text-align: left;
    font-weight: var(--font-weight-md);
}

.comparison-table tbody td.plan-premium {
    background: var(--colour-premium-bg);
}

.comparison-table tbody tr:last-child td {
    border-bottom: none;
}

.comparison-table tbody tr:last-child td.plan-premium {
    border-radius: 0 0 var(--radius-xs) var(--radius-xs);
}

.comparison-table .table-check {
    width: 20px;
    height: 20px;
    display: inline-block;
    vertical-align: middle;
    fill: none;
    stroke-width: 2;
}

.comparison-table .table-check.check-free {
    color: var(--colour-secondary);
    stroke: currentColor;
}

.comparison-table .table-check.check-premium {
    color: var(--colour-premium);
    stroke: currentColor;
}

.comparison-table .table-dash {
    display: inline-block;
    width: 16px;
    height: 2px;
    background: var(--colour-muted);
    vertical-align: middle;
    border-radius: 1px;
}

/* ============================================================================
   FAQ ACCORDION
   ============================================================================ */

.premium-faq {
    max-width: 700px;
    margin: 0 auto 80px;
}

.faq-list {
    display: flex;
    flex-direction: column;
}

.faq-item {
    border-bottom: 1px solid var(--colour-muted);
}

.faq-item:last-child {
    border-bottom: none;
}

.faq-trigger {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    padding: 20px 0;
    border: none;
    background: transparent;
    cursor: pointer;
    font-family: var(--font-header);
    font-size: var(--text-sm);
    font-weight: var(--font-weight-md);
    color: var(--colour-text);
    text-align: left;
    gap: 16px;
    transition: color 0.2s ease;
}

.faq-trigger:hover {
    color: var(--colour-premium);
}

.faq-trigger:focus-visible {
    outline: 3px solid var(--colour-primary);
    outline-offset: 2px;
    border-radius: var(--radius-xs);
}

.faq-chevron {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
    transition: transform 0.3s ease;
    color: var(--colour-text);
    opacity: 0.5;
    fill: none;
    stroke: currentColor;
    stroke-width: 2;
}

.faq-trigger[aria-expanded="true"] .faq-chevron {
    transform: rotate(180deg);
}

.faq-content {
    overflow: hidden;
}

.faq-content p {
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
    color: var(--colour-text);
    opacity: 0.7;
    line-height: 1.7;
    margin: 0;
    padding: 0 0 20px;
}

/* ============================================================================
   FINAL CTA
   ============================================================================ */

.premium-final-cta {
    text-align: center;
    padding: 64px 24px;
    margin-bottom: 40px;
    background: var(--colour-paper);
    border-radius: var(--radius-sm);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.premium-final-cta h2 {
    font-family: var(--font-header);
    font-size: var(--text-md);
    font-weight: var(--font-weight-lg);
    color: var(--colour-text);
    margin: 0 0 12px;
}

.premium-final-cta p {
    font-family: var(--font-paragraph);
    font-size: var(--text-sm);
    color: var(--colour-text);
    opacity: 0.7;
    margin: 0 0 32px;
}

.premium-final-cta .btn-premium-cta {
    width: auto;
    padding: 16px 48px;
}

/* ============================================================================
   DARK MODE
   ============================================================================ */

[data-theme="dark"] .pricing-card-single {
    box-shadow:
        0 20px 30px rgba(0, 0, 0, 0.35),
        0 8px 10px rgba(0, 0, 0, 0.25);
}

[data-theme="dark"] .pricing-card-single:hover {
    box-shadow:
        0 24px 38px rgba(0, 0, 0, 0.45),
        0 12px 16px rgba(0, 0, 0, 0.30);
}

[data-theme="dark"] .billing-toggle {
    background: #1f1f1f;
}

[data-theme="dark"] .billing-toggle-slider {
    background: var(--colour-paper);
    box-shadow: 0 1px 4px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .pricing-features-list li {
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .feature-card {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .feature-card:hover {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

[data-theme="dark"] .feature-icon {
    background: rgba(212, 168, 75, 0.08);
}

[data-theme="dark"] .comparison-table thead th {
    border-bottom-color: rgba(255, 255, 255, 0.1);
}

[data-theme="dark"] .comparison-table tbody td {
    border-bottom-color: rgba(255, 255, 255, 0.06);
}

[data-theme="dark"] .comparison-table thead .plan-premium,
[data-theme="dark"] .comparison-table tbody td.plan-premium {
    background: rgba(212, 168, 75, 0.05);
}

[data-theme="dark"] .faq-item {
    border-bottom-color: rgba(255, 255, 255, 0.08);
}

[data-theme="dark"] .premium-final-cta {
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
}

[data-theme="dark"] .savings-pill {
    color: #1a1a1a;
}

[data-theme="dark"] .table-dash {
    background: rgba(255, 255, 255, 0.2);
}

/* ============================================================================
   REDUCED MOTION
   ============================================================================ */

@media (prefers-reduced-motion: reduce) {
    .pricing-card-single,
    .billing-toggle-slider,
    .billing-option,
    .faq-chevron,
    .faq-trigger,
    .feature-card,
    .btn-premium-cta {
        transition: none;
    }
}

/* ============================================================================
   RESPONSIVE
   ============================================================================ */

/* Tablet */
@media (max-width: 900px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .premium-hero {
        margin-bottom: 48px;
        padding-top: 32px;
    }

    .premium-hero-title {
        font-size: var(--text-lg);
    }

    .premium-pricing {
        margin-bottom: 64px;
    }

    .premium-features,
    .premium-comparison {
        margin-bottom: 64px;
    }

    .section-heading {
        margin-bottom: 32px;
    }

    .comparison-table .feature-col {
        min-width: 140px;
    }

    .premium-faq {
        margin-bottom: 64px;
    }
}

/* Mobile */
@media (max-width: 480px) {
    .premium-page {
        padding: 0 16px 32px;
    }

    .premium-hero-title {
        font-size: var(--text-md);
    }

    .premium-hero-subtitle {
        font-size: var(--text-xs);
    }

    .pricing-card-single {
        padding: 24px;
    }

    .price-value {
        font-size: var(--text-lg);
    }

    .feature-grid {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .feature-card {
        padding: 20px;
    }

    .comparison-table th,
    .comparison-table td {
        padding: 10px 12px;
        font-size: var(--text-xs);
    }

    .premium-final-cta {
        padding: 40px 20px;
    }

    .premium-final-cta .btn-premium-cta {
        width: 100%;
        padding: 16px 24px;
    }
}