/* ==========================================================================
   SULTAN SINGH E-BOOK STORE STYLES
   Integrated with existing brand palette (--color-accent: #C26148)
   ========================================================================== */

.store-hero {
    padding: calc(var(--header-height) + var(--spacing-3xl)) var(--spacing-xl) var(--spacing-3xl);
    background: linear-gradient(135deg, rgba(194, 97, 72, 0.12) 0%, rgba(248, 249, 250, 0.95) 100%);
    text-align: center;
    position: relative;
}

.store-hero__container {
    max-width: 1000px;
    margin: 0 auto;
}

.store-hero__title {
    font-family: var(--font-family-heading);
    font-size: clamp(2.2rem, 4vw, 3.2rem);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.store-hero__subtitle {
    font-size: 1.15rem;
    color: var(--color-text-muted);
    max-width: 750px;
    margin: 0 auto var(--spacing-xl);
    line-height: 1.8;
}

/* Store Filter Bar */
.store-filter-bar {
    background: var(--color-bg-primary);
    border-radius: 1rem;
    padding: var(--spacing-lg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.06);
    margin: calc(-1 * var(--spacing-2xl)) auto var(--spacing-3xl);
    max-width: 1100px;
    position: relative;
    z-index: 10;
}

.store-filter-form {
    display: grid;
    grid-template-columns: 2fr 1.5fr 1.5fr 1fr auto;
    gap: var(--spacing-md);
    align-items: center;
}

@media (max-width: 900px) {
    .store-filter-form {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 600px) {
    .store-filter-form {
        grid-template-columns: 1fr;
    }
}

.store-filter-input, .store-filter-select {
    width: 100%;
    padding: 0.75rem 1rem;
    border: 1px solid rgba(0, 0, 0, 0.15);
    border-radius: 0.5rem;
    font-family: var(--font-family-primary);
    font-size: 0.95rem;
    background: var(--color-bg-primary);
    color: var(--color-text-primary);
    transition: var(--transition-fast);
}

.store-filter-input:focus, .store-filter-select:focus {
    outline: none;
    border-color: var(--color-accent);
    box-shadow: 0 0 0 3px rgba(194, 97, 72, 0.2);
}

/* Books Grid */
.store-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: var(--spacing-2xl);
    max-width: 1200px;
    margin: 0 auto var(--spacing-4xl);
    padding: 0 var(--spacing-lg);
}

.store-card {
    background: var(--color-bg-primary);
    border-radius: 1rem;
    overflow: hidden;
    box-shadow: 0 6px 18px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
    border: 1px solid rgba(194, 97, 72, 0.08);
}

.store-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 16px 32px rgba(194, 97, 72, 0.14);
}

.store-card__cover-wrap {
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.8), rgba(240, 241, 243, 0.9));
    padding: var(--spacing-xl);
    display: flex;
    justify-content: center;
    align-items: center;
    position: relative;
    min-height: 280px;
}

.store-card__cover {
    max-width: 180px;
    max-height: 240px;
    width: auto;
    height: auto;
    object-fit: contain;
    border-radius: 0.375rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.16);
    transition: transform 0.3s ease;
}

.store-card:hover .store-card__cover {
    transform: scale(1.04);
}

.store-card__badge-series {
    position: absolute;
    top: var(--spacing-md);
    left: var(--spacing-md);
    background: var(--color-accent);
    color: #fff;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.25rem 0.6rem;
    border-radius: 1rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.store-card__content {
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    flex-grow: 1;
}

.store-card__category {
    font-size: 0.8rem;
    color: var(--color-accent);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: var(--spacing-xs);
}

.store-card__title {
    font-family: var(--font-family-heading);
    font-size: 1.35rem;
    color: var(--color-text-primary);
    margin: 0 0 var(--spacing-xs) 0;
    line-height: 1.35;
}

.store-card__title a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s ease;
}

.store-card__title a:hover {
    color: var(--color-accent);
}

.store-card__author {
    font-size: 0.875rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-md);
}

.store-card__languages {
    display: flex;
    gap: 0.4rem;
    margin-bottom: var(--spacing-lg);
    flex-wrap: wrap;
}

.store-lang-badge {
    background: rgba(194, 97, 72, 0.08);
    color: var(--color-accent-dark);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 0.2rem 0.55rem;
    border-radius: 0.25rem;
    border: 1px solid rgba(194, 97, 72, 0.2);
}

.store-card__footer {
    margin-top: auto;
    padding-top: var(--spacing-md);
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.store-card__price-box {
    display: flex;
    flex-direction: column;
}

.store-card__price-label {
    font-size: 0.75rem;
    color: var(--color-text-muted);
    text-transform: uppercase;
}

.store-card__price {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--color-accent);
}

/* ==========================================================================
   CANONICAL BOOK DETAIL PAGE STYLES
   ========================================================================== */

.book-detail-wrapper {
    max-width: 1100px;
    margin: calc(var(--header-height) + var(--spacing-2xl)) auto var(--spacing-4xl);
    padding: 0 var(--spacing-xl);
}

.book-breadcrumb {
    font-size: 0.9rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-xl);
}

.book-breadcrumb a {
    color: var(--color-text-muted);
    text-decoration: none;
}

.book-breadcrumb a:hover {
    color: var(--color-accent);
}

.book-detail-grid {
    display: grid;
    grid-template-columns: 360px 1fr;
    gap: var(--spacing-3xl);
    background: var(--color-bg-primary);
    border-radius: 1.25rem;
    padding: var(--spacing-3xl);
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
    border: 1px solid rgba(194, 97, 72, 0.1);
}

@media (max-width: 860px) {
    .book-detail-grid {
        grid-template-columns: 1fr;
        padding: var(--spacing-xl);
    }
}

.book-detail__left {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

.book-detail__cover-frame {
    background: linear-gradient(135deg, rgba(248, 249, 250, 0.9), rgba(240, 241, 243, 0.9));
    border-radius: 1rem;
    padding: var(--spacing-2xl);
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.05);
    margin-bottom: var(--spacing-lg);
    width: 100%;
    display: flex;
    justify-content: center;
}

.book-detail__cover-img {
    max-width: 220px;
    width: 100%;
    height: auto;
    border-radius: 0.5rem;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.2);
}

.book-detail__meta-box {
    width: 100%;
    background: rgba(248, 249, 250, 0.9);
    border-radius: 0.75rem;
    padding: var(--spacing-lg);
    text-align: left;
    font-size: 0.9rem;
}

.book-detail__meta-row {
    display: flex;
    justify-content: space-between;
    padding: 0.4rem 0;
    border-bottom: 1px dashed rgba(0, 0, 0, 0.1);
}

.book-detail__meta-row:last-child {
    border-bottom: none;
}

.book-detail__meta-label {
    color: var(--color-text-muted);
}

.book-detail__meta-val {
    font-weight: 600;
    color: var(--color-text-primary);
}

/* Right Column Content */
.book-detail__category {
    font-size: 0.85rem;
    color: var(--color-accent);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    margin-bottom: var(--spacing-xs);
}

.book-detail__title {
    font-family: var(--font-family-heading);
    font-size: clamp(2rem, 3.2vw, 2.75rem);
    color: var(--color-text-primary);
    line-height: 1.25;
    margin: 0 0 var(--spacing-xs) 0;
}

.book-detail__subtitle {
    font-size: 1.15rem;
    color: var(--color-text-secondary);
    font-weight: 500;
    margin: 0 0 var(--spacing-lg) 0;
    line-height: 1.5;
}

/* Interactive Language Selector Tabs */
.book-lang-box {
    background: rgba(194, 97, 72, 0.04);
    border: 1px solid rgba(194, 97, 72, 0.2);
    border-radius: 0.75rem;
    padding: var(--spacing-md) var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    flex-wrap: wrap;
}

.book-lang-box__label {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--color-text-primary);
    display: flex;
    align-items: center;
    gap: 0.4rem;
}

.book-lang-tabs {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.book-lang-tab {
    background: #fff;
    border: 1.5px solid rgba(0, 0, 0, 0.15);
    border-radius: 2rem;
    padding: 0.4rem 1rem;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    text-decoration: none;
    color: var(--color-text-primary);
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.book-lang-tab:hover {
    border-color: var(--color-accent);
    color: var(--color-accent);
    background: rgba(194, 97, 72, 0.05);
}

.book-lang-tab.active {
    background: var(--color-accent);
    color: #fff;
    border-color: var(--color-accent);
    box-shadow: 0 4px 12px rgba(194, 97, 72, 0.35);
}

/* Format Purchase Cards */
.book-formats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-2xl);
}

.book-format-card {
    border: 2px solid rgba(0, 0, 0, 0.08);
    border-radius: 0.75rem;
    padding: var(--spacing-lg);
    background: var(--color-bg-primary);
    transition: all 0.25s ease;
    display: flex;
    flex-direction: column;
}

.book-format-card.highlight {
    border-color: var(--color-accent);
    background: linear-gradient(180deg, rgba(194, 97, 72, 0.03) 0%, rgba(255, 255, 255, 1) 100%);
}

.book-format-card__header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
}

.book-format-card__title {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--color-text-primary);
}

.book-format-card__price {
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--color-accent);
    margin-bottom: var(--spacing-sm);
}

.book-format-card__desc {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-lg);
    line-height: 1.5;
}

.book-format-card__btn {
    margin-top: auto;
    width: 100%;
    text-align: center;
}

/* Description text */
.book-detail__desc-heading {
    font-family: var(--font-family-heading);
    font-size: 1.4rem;
    color: var(--color-text-primary);
    margin: var(--spacing-xl) 0 var(--spacing-md) 0;
    padding-bottom: var(--spacing-xs);
    border-bottom: 2px solid rgba(194, 97, 72, 0.2);
}

.book-detail__description {
    font-size: 1.05rem;
    line-height: 1.85;
    color: var(--color-text-secondary);
    white-space: pre-line;
}

/* ==========================================================================
   CART & CHECKOUT STYLES
   ========================================================================== */
.cart-page {
    padding: calc(var(--header-height) + var(--spacing-2xl)) var(--spacing-lg) var(--spacing-4xl);
    max-width: 1100px;
    margin: 0 auto;
}

.cart-title {
    font-family: var(--font-family-heading);
    font-size: 2.2rem;
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

.cart-subtitle {
    font-size: 1.05rem;
    color: var(--color-text-muted);
    margin-bottom: var(--spacing-2xl);
}

.cart-grid {
    display: grid;
    grid-template-columns: 1.6fr 1.1fr;
    gap: var(--spacing-2xl);
    align-items: start;
}

@media (max-width: 860px) {
    .cart-grid {
        grid-template-columns: 1fr;
    }
}

.cart-box {
    background: #FFFFFF;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 1rem;
    padding: var(--spacing-xl);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.04);
}

.cart-item {
    display: flex;
    gap: var(--spacing-md);
    padding: var(--spacing-md) 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.06);
    align-items: center;
}

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

.cart-item__thumb {
    width: 60px;
    height: 82px;
    object-fit: cover;
    border-radius: 6px;
    border: 1px solid rgba(0, 0, 0, 0.08);
}

.cart-item__info {
    flex: 1;
}

.cart-item__title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text-primary);
    margin-bottom: 4px;
}

.cart-item__meta {
    font-size: 0.82rem;
    color: var(--color-text-muted);
}

.cart-item__price {
    font-size: 1.15rem;
    font-weight: 800;
    color: var(--color-accent);
}

.cart-item__remove {
    color: #EF4444;
    text-decoration: none;
    font-size: 0.85rem;
    padding: 6px 10px;
    border-radius: 4px;
    transition: background 0.2s;
}

.cart-item__remove:hover {
    background: #FEE2E2;
}

.cart-discount-banner {
    background: linear-gradient(135deg, #ECFDF5 0%, #D1FAE5 100%);
    border: 1px solid #A7F3D0;
    border-radius: 0.75rem;
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
    display: flex;
    align-items: center;
    gap: 12px;
    color: #065F46;
    font-size: 0.95rem;
}

.cart-summary-line {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    font-size: 0.95rem;
    color: var(--color-text-secondary);
}

.cart-summary-total {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: var(--spacing-md);
    margin-top: var(--spacing-md);
    border-top: 2px dashed rgba(0, 0, 0, 0.1);
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--color-text-primary);
}

.upi-payment-card {
    background: #FFFFFF;
    border: 2px solid var(--color-accent);
    border-radius: 1rem;
    padding: var(--spacing-xl);
    box-shadow: 0 10px 30px rgba(194, 97, 72, 0.12);
    text-align: center;
}

.upi-qr-box {
    background: #FAF7F2;
    border: 1px solid rgba(194, 97, 72, 0.25);
    border-radius: 12px;
    padding: 20px;
    display: inline-block;
    margin: 16px 0;
}

.upi-copy-btn {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: #FFF;
    border: 1px solid rgba(0, 0, 0, 0.15);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    margin-top: 8px;
}