/* ===================================
   COMMERCE: shared cart affordances + cart page layout.
   Colour tokens come from css/style.css; this file owns layout only.
   =================================== */

/* Navigation cart link (injected by js/cart.js) */
.nav-cart {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    color: var(--primary-color);
    text-decoration: none;
    font-weight: 600;
    font-size: 0.9rem;
    white-space: nowrap;
    padding: 0.45rem 0.75rem;
    min-height: 40px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.nav-cart:hover {
    background: var(--fl-tint-soft);
    border-color: var(--fl-border-strong);
}

.nav-cart-count {
    min-width: 1.4rem;
    height: 1.4rem;
    padding: 0 0.35rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 999px;
    background: var(--primary-color);
    color: #fff;
    font-size: 0.75rem;
    line-height: 1;
}

.cart-notice {
    position: fixed;
    bottom: 1rem;
    left: 50%;
    transform: translateX(-50%);
    max-width: min(92vw, 36rem);
    padding: 0.8rem 1rem;
    background: var(--primary-color);
    color: #fff;
    border-radius: var(--radius-md);
    z-index: 10010;
    box-shadow: var(--shadow-lg);
    font-size: 0.95rem;
}

.cart-notice.is-error {
    background: var(--error-color);
}

.cart-notice[hidden] {
    display: none;
}

/* Legacy opt-in theme class: tokens are now global, keep the hook for existing markup. */
.commerce-theme {
    background: var(--light-color);
    color: var(--text-color);
}

.commerce-theme .nav-brand .nav-logo {
    width: 44px;
    height: 44px;
    object-fit: contain;
    border-radius: 0;
}

/* Product cards and price blocks on shopping pages */
.commerce-theme :is(.material-card, .exam-card, .cart-summary, .cart-item) {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
    transform: none;
}

.commerce-theme :is(.material-card, .exam-card):hover {
    transform: none;
    box-shadow: var(--shadow-md);
    border-color: var(--fl-border-strong);
}

.commerce-theme :is(.material-icon, .exam-icon) {
    background: var(--gradient-1);
    color: #fff;
    box-shadow: 0 6px 14px rgba(37, 99, 235, 0.25);
    width: 48px;
    height: 48px;
    border-radius: 50%;
    font-size: 1.2rem;
}

.commerce-theme :is(.price, .mock-family-price) {
    color: var(--primary-color);
}

.commerce-theme .premium-card {
    border-color: var(--border-color);
}

.commerce-theme .material-price .price {
    font-size: 1.6rem;
}

.commerce-theme .material-selection {
    padding: 1.25rem 0;
}

.commerce-theme .section-title {
    margin-bottom: 0.5rem;
}

.commerce-theme .exam-selection {
    padding: 1.25rem 0;
}

.commerce-theme .exam-grid {
    gap: 1rem;
}

.commerce-theme .exam-card.free-card {
    padding: 1.25rem;
}

.commerce-theme .material-grid {
    align-items: stretch;
}

.commerce-theme .material-card {
    text-align: left;
    padding: 1.25rem;
}

.commerce-theme .material-icon {
    margin: 0 0 0.65rem;
}

/* Mock test rows (rendered by js/independent-mocks.js) */
.mock-test-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    padding: 0.9rem 1rem;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    margin-bottom: 0.6rem;
}

.mock-test-copy {
    min-width: 0;
    display: grid;
    gap: 0.3rem;
}

.mock-test-copy strong {
    font-size: 1rem;
    color: var(--fl-ink);
}

.mock-test-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.mock-test-price {
    font-weight: 600;
    color: var(--primary-color);
}

.mock-test-copy summary {
    font-size: 0.82rem;
    cursor: pointer;
    color: var(--primary-color);
}

.mock-test-copy details small {
    display: block;
    margin-top: 0.3rem;
    color: var(--text-secondary);
}

.mock-add-button {
    flex: 0 0 auto;
    min-height: 40px;
    padding: 0.5rem 0.9rem;
    font: inherit;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary-color);
    background: var(--surface-color);
    border: 1px solid var(--fl-border-strong);
    border-radius: var(--radius-md);
    cursor: pointer;
    white-space: nowrap;
    transition: background-color 0.15s ease, border-color 0.15s ease;
}

.mock-add-button:hover:not(:disabled) {
    background: var(--fl-tint-soft);
    border-color: var(--primary-color);
}

.mock-add-button.is-owned {
    color: #fff;
    background: var(--fl-green);
    border-color: var(--fl-green);
}

.mock-add-button.is-owned:hover:not(:disabled) {
    background: #166534;
    border-color: #166534;
}

.mock-add-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

/* Shared text helpers */
.commerce-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    letter-spacing: 0.04em;
    font-weight: 600;
    text-transform: uppercase;
}

.commerce-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    align-items: center;
    margin-top: 1rem;
}

.commerce-text-button {
    border: 0;
    background: transparent;
    text-decoration: underline;
    text-underline-offset: 2px;
    color: var(--primary-color);
    cursor: pointer;
    padding: 0.5rem 0.25rem;
    min-height: 40px;
    font: inherit;
    font-size: 0.9rem;
}

.commerce-text-button:hover {
    color: var(--primary-dark);
}

.commerce-text-button:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.commerce-fineprint,
#couponFeedback {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0.75rem 0;
    line-height: 1.5;
}

/* Cart page */
.cart-main {
    padding-top: 2.5rem;
    padding-bottom: 3rem;
}

.cart-status {
    font-size: 0.9rem;
    color: var(--text-secondary);
    padding: 0.6rem 0.9rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--surface-color);
    margin-bottom: 1rem;
}

.cart-status:empty {
    display: none;
}

.cart-status.is-error {
    color: var(--error-color);
    border-color: #F3C9C4;
    background: #FDECEA;
}

.cart-layout {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(300px, 380px);
    gap: 2rem;
    margin-top: 1rem;
    align-items: start;
}

.cart-section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.75rem;
}

.cart-section-heading h2,
.cart-summary h2 {
    font-size: 1.15rem;
}

.cart-item {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: 1rem;
    padding: 1.1rem 1.25rem;
    margin-bottom: 0.75rem;
}

.cart-item > div {
    min-width: 0;
    overflow-wrap: anywhere;
}

.cart-item h3 {
    font-size: 1.05rem;
    margin: 0.15rem 0 0.25rem;
}

.cart-item p {
    font-size: 0.9rem;
    margin: 0.2rem 0;
    color: var(--text-secondary);
}

.cart-item p.commerce-label {
    margin: 0;
}

.cart-item-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.25rem 1rem;
    margin-top: 0.35rem;
}

.cart-item-actions a {
    font-size: 0.9rem;
}

.cart-item-price {
    white-space: nowrap;
    font-size: 1.05rem;
    color: var(--fl-ink);
}

.cart-browse {
    font-size: 0.9rem;
    color: var(--text-secondary);
    margin-top: 1rem;
}

.cart-summary {
    padding: 1.5rem;
    position: sticky;
    top: 5.5rem;
}

.cart-summary dl {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 0.6rem 1rem;
    margin: 1rem 0 0.5rem;
    font-size: 0.92rem;
}

.cart-summary dt {
    color: var(--text-secondary);
}

.cart-summary dd {
    text-align: right;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.cart-summary :is(dt, dd):nth-last-child(-n+2) {
    border-top: 1px solid var(--border-color);
    padding-top: 0.75rem;
    margin-top: 0.25rem;
    font-weight: 700;
    color: var(--fl-ink);
    font-size: 1.05rem;
}

.cart-summary > .btn {
    width: 100%;
    margin-top: 0.75rem;
}

.btn-checkout {
    min-height: 48px;
    font-size: 1rem;
}

.coupon-form {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.coupon-form label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-color);
}

.coupon-row {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.4rem;
}

.coupon-row input {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    border: 1px solid var(--fl-border-strong);
    border-radius: var(--radius-md);
    padding: 0.6rem 0.75rem;
    font: inherit;
    text-transform: uppercase;
}

.coupon-row input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: var(--focus-ring);
}

.coupon-row .btn {
    flex: 0 0 auto;
}

.coupon-applied {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-top: 1rem;
    padding: 0.6rem 0.85rem;
    border: 1px dashed var(--primary-color);
    border-radius: var(--radius-md);
    background: var(--fl-tint-soft);
    color: var(--primary-dark);
}

.coupon-applied[hidden],
.coupon-form[hidden] {
    display: none;
}

.coupon-applied strong {
    letter-spacing: 0.04em;
}

#couponFeedback:empty {
    display: none;
}

#couponFeedback.is-error {
    color: var(--error-color);
}

.cart-issue,
.cart-empty {
    padding: 1rem 1.1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--surface-color);
    margin-bottom: 0.75rem;
    font-size: 0.95rem;
}

.cart-issue {
    border-left: 3px solid var(--warning-color);
    background: #FDF8F0;
}

.cart-issue button {
    display: block;
}

.cart-empty {
    text-align: center;
    color: var(--text-secondary);
    padding: 2rem 1rem;
}

.cart-pending {
    font-size: 0.88rem;
    padding: 0.75rem;
    border-radius: var(--radius-md);
    background: var(--fl-tint-soft);
    border: 1px solid var(--border-color);
}

.commerce-theme .is-error {
    color: var(--error-color);
}

@media (max-width: 900px) {
    .cart-layout {
        grid-template-columns: minmax(0, 1fr);
        gap: 1.25rem;
    }

    .cart-summary {
        position: static;
    }
}

@media (max-width: 768px) {
    .nav-cart {
        padding: 0.4rem 0.6rem;
    }

    .nav-cart-label {
        position: absolute;
        width: 1px;
        height: 1px;
        overflow: hidden;
        clip: rect(0 0 0 0);
        white-space: nowrap;
    }

    .mock-test-row {
        flex-wrap: wrap;
    }

    .mock-add-button {
        flex: 1 1 100%;
        min-height: 44px;
    }
}

@media (max-width: 480px) {
    .cart-main {
        padding-inline: 16px;
    }

    .cart-item {
        padding: 1rem;
        gap: 0.6rem;
        flex-wrap: wrap;
    }

    .cart-item-price {
        flex-basis: 100%;
        text-align: right;
    }

    .cart-summary {
        padding: 1rem;
    }

    .coupon-row {
        flex-direction: column;
    }

    .coupon-row .btn {
        width: 100%;
    }
}

/* ===================================
   Shared product card: one skeleton and one size on the mock, material
   and practice-paper pages (markup from tools/build_product_cards.py).
   =================================== */
.commerce-theme .product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 300px), 360px));
    justify-content: center;
    align-items: stretch;
    gap: 1.25rem;
}

.commerce-theme .product-grid > * {
    width: 100%;
    max-width: none;
    min-width: 0;
    margin: 0;
    flex: none;
}

.commerce-theme .product-card {
    display: flex;
    flex-direction: column;
    gap: 0.6rem;
    min-height: 31rem;
    padding: 1.25rem;
    text-align: center;
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-sm);
}

.commerce-theme .product-card.free-card {
    border-top-color: var(--success-color);
}

.commerce-theme .product-card.product-tier-ab {
    border-top-color: var(--primary-color);
}

.commerce-theme .product-card.product-tier-abc {
    border-top-color: var(--fl-amber);
}

.product-features strong {
    color: var(--fl-ink);
    font-weight: 700;
}

.product-card-head {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 52px minmax(0, 1fr);
    align-items: center;
    gap: 0.4rem;
}

.commerce-theme .product-card-head :is(.material-icon, .exam-icon) {
    margin: 0;
    grid-column: 2;
}

.product-badge {
    font-size: 0.75rem;
    font-weight: 700;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    background: #E6F4EA;
    color: var(--fl-green);
    border: 1px solid #B7DFC3;
    white-space: normal;
    max-width: 100%;
    grid-column: 3;
    justify-self: end;
    text-align: center;
    align-self: center;
}

.product-badge--access {
    background: #E6F4EA;
    color: var(--fl-green);
    border-color: #B7DFC3;
}

.product-badge--free {
    background: #E6F4EA;
    color: var(--fl-green);
    border-color: #B7DFC3;
}

.commerce-theme .product-card h3 {
    margin: 0;
    font-size: 1.15rem;
    line-height: 1.3;
    color: var(--fl-ink);
}

.product-tagline {
    margin: 0;
    min-height: 2.9em;
    font-size: 0.9rem;
    line-height: 1.45;
    color: var(--text-secondary);
}

.product-price {
    display: flex;
    flex-wrap: nowrap;
    align-items: baseline;
    justify-content: center;
    gap: 0.45rem;
    margin: 0;
    white-space: nowrap;
}

.commerce-theme .product-price .price {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.2;
    color: var(--fl-price);
}

.commerce-theme :is(.product-package [data-commerce-price], .mock-test-price, .cart-item-price strong) {
    color: var(--fl-price);
}

.welcome-offer {
    position: relative;
    margin: 0;
    padding: 0.55rem 3rem;
    background: var(--fl-offer-bg);
    border-bottom: 1px solid var(--fl-offer-border);
    color: var(--fl-ink);
    text-align: center;
    font-size: 0.85rem;
    line-height: 1.5;
}

.welcome-offer-close {
    position: absolute;
    inset-inline-end: 0.25rem;
    top: 50%;
    transform: translateY(-50%);
    width: 44px;
    height: 44px;
    border: 0;
    background: transparent;
    color: var(--fl-ink);
    font: inherit;
    font-size: 1.5rem;
    cursor: pointer;
}

.welcome-offer-close:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: -4px;
}

.welcome-offer strong {
    color: var(--error-color);
}

.welcome-offer a {
    color: var(--primary-dark);
    font-weight: 700;
    text-underline-offset: 3px;
}

.price-unit {
    font-size: 0.55em;
    font-weight: 600;
}

.product-price.has-price-range {
    flex-wrap: wrap;
    white-space: normal;
}

.price-mrp {
    font-size: 0.95rem;
    color: var(--text-secondary);
    text-decoration: line-through;
    text-decoration-thickness: 1.5px;
}

.price-off {
    flex-shrink: 0;
    padding: 0.15rem 0.5rem;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    color: #fff;
    background: var(--error-color);
    border-radius: 999px;
    align-self: center;
}

.price-mrp[hidden],
.price-off[hidden] {
    display: none;
}

.product-features {
    display: grid;
    gap: 0.4rem;
    margin: 0;
    padding: 0.6rem 0 0;
    list-style: none;
    border-top: 1px solid var(--border-color);
}

.product-features li {
    display: flex;
    gap: 0.5rem;
    padding: 0;
    border: 0;
    font-size: 0.88rem;
    line-height: 1.45;
    color: var(--text-color);
    text-align: left;
    font-weight: 700;
}

.product-features i {
    margin-top: 0.3rem;
    font-size: 0.7rem;
    color: var(--primary-color);
    flex: 0 0 0.5rem;
}

.product-features i::before {
    content: "\2022";
}

.bundle-savings {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.3rem 1rem;
    margin: 0 auto 0.75rem;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--fl-border-strong);
    border-radius: var(--radius-md);
    background: var(--fl-tint-soft);
    text-align: center;
    font-weight: 700;
    color: var(--primary-dark);
}

.bundle-savings h2 {
    font-size: 0.75rem;
    margin: 0;
}

.bundle-savings p {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.2rem 0.75rem;
    margin: 0;
    font-size: 0.8rem;
}

.bundle-savings p span { white-space: nowrap; }

.product-actions {
    display: grid;
    gap: 0.5rem;
    margin-top: auto;
    padding-top: 0.5rem;
}

.commerce-theme .product-actions .btn {
    width: 100%;
    margin: 0;
    justify-content: center;
}

.product-package {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    align-items: baseline;
    gap: 0.35rem;
    margin: 0;
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.product-package strong {
    color: var(--fl-ink);
}

.product-package .package-label {
    font-weight: 800;
    color: var(--primary-dark);
}

.product-package .price-mrp {
    font-size: 0.85rem;
}

.commerce-theme .product-card :is(.login-note, .paper-access-note) {
    min-height: 0;
    margin: 0;
    padding: 0.45rem 0.65rem;
    font-size: 0.82rem;
    color: var(--text-color);
    background: var(--fl-tint-soft);
    border-radius: var(--radius-md);
}

.commerce-theme .product-card :is(.login-note, .paper-access-note):empty {
    display: none;
}

.commerce-theme .product-card .paper-access-note.is-active,
.commerce-theme .product-card .login-note[data-tone="success"] {
    color: var(--success-color);
    background: #E6F4EA;
}

.commerce-theme .product-card .login-note[data-tone="error"] {
    color: var(--error-color);
    background: #FDECEA;
}

/* Added-to-cart state: greyed out until the item is removed or paid for. */
.commerce-theme button.is-in-cart,
.commerce-theme button.is-in-cart:disabled,
.commerce-theme button.is-in-cart:hover {
    opacity: 1;
    color: var(--fl-ink);
    background: var(--fl-tint);
    border: 1px solid var(--fl-border-strong);
    font-weight: 700;
    box-shadow: none;
    transform: none;
    cursor: default;
}

button.is-in-cart::before {
    content: "\2713";
    margin-right: 0.4rem;
    font-weight: 700;
    color: var(--success-color);
}

.mock-test-meta .price-mrp,
.cart-item-price .price-mrp {
    font-size: 0.82rem;
    font-weight: 400;
}

.cart-item-price {
    margin: 0;
}

.mock-test-price,
.cart-item-price > strong,
.cart-item-price {
    font-size: 1.05rem;
    font-weight: 700;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.paper-disclosure.commerce-fineprint {
    background: none;
    padding: 0;
    text-align: center;
    max-width: 48rem;
}