/* ==========================================
   ImgoBot Shop Page - Premium Theme
   ========================================== */

:root {
    --bg-app: #f5f5f0;
    --bg-paper: #fafaf9;
    --bg-white: #ffffff;
    --text-primary: #44403c;
    --text-secondary: #78716c;
    --text-tertiary: #a8a29e;
    --text-dark: #111111;
    --primary: #578e7e;
    --primary-hover: #437063;
    --primary-light: #eef5f3;
    --border: #e7e5e4;
    --shadow-md: 0 4px 6px -1px rgba(68, 64, 60, 0.08), 0 2px 4px -1px rgba(68, 64, 60, 0.04);
    --shadow-lg: 0 10px 15px -3px rgba(68, 64, 60, 0.08), 0 4px 6px -2px rgba(68, 64, 60, 0.04);
    --shadow-xl: 0 20px 25px -5px rgba(68, 64, 60, 0.1), 0 10px 10px -5px rgba(68, 64, 60, 0.04);
    --radius-md: 12px;
    --radius-lg: 20px;
    --transition-fast: 150ms ease-out;
    --transition-normal: 250ms ease-out;
}

*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body.shop-page {
    font-family: 'Pretendard Variable', 'Pretendard', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
    background: var(--bg-app);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Main */
.shop-main {
    max-width: 1200px;
    margin: 0 auto;
    padding: 80px 24px;
}

/* Hero */
.hero-section {
    text-align: center;
    padding: 60px 0 80px;
}

.hero-title {
    font-size: clamp(32px, 5vw, 48px);
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-primary);
    margin-bottom: 20px;
    letter-spacing: -0.02em;
}

/* Products */
.products-section {
    padding: 20px 0 60px;
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    align-items: stretch;
}

.product-card {
    display: flex;
    flex-direction: column;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 2px solid var(--border);
    padding: 28px;
    height: 100%;
}

.product-card.featured {
    border-color: var(--primary);
}

.product-header {
    display: flex;
    align-items: flex-start;
    justify-content: flex-end;
    height: 64px;
    margin-bottom: 20px;
}

.product-header.spacer {
    visibility: hidden;
}

.featured-badge {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 6px 12px;
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    font-size: 11px;
    font-weight: 700;
    border-radius: 50px;
    box-shadow: 0 2px 8px rgba(87, 142, 126, 0.35);
}

.product-content {
    flex: 1;
    display: flex;
    flex-direction: column;
}

.product-title {
    font-size: 28px;
    font-weight: 800;
    line-height: 1.3;
    color: var(--text-dark);
    margin-bottom: 8px;
}

.product-description {
    font-size: 16px;
    font-weight: 600;
    color: var(--text-dark);
    margin-bottom: 20px;
    line-height: 1.85;
    height: 60px;
}

.product-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
    min-height: 64px;
}

.feature-item {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
}

.feature-item svg {
    flex-shrink: 0;
}

.feature-item.unavailable {
    color: var(--text-secondary);
    font-weight: 500;
}

.product-footer {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    margin-top: auto;
    min-height: 70px;
}

.product-price {
    display: flex;
    align-items: baseline;
    gap: 2px;
    flex-wrap: wrap;
    height: 56px;
    align-content: flex-end;
}

.price-value {
    font-size: 28px;
    font-weight: 800;
    line-height: 1;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.price-unit {
    font-size: 16px;
    font-weight: 600;
    line-height: 1;
    color: var(--text-primary);
}

.price-period {
    font-size: 13px;
    line-height: 1;
    color: var(--text-tertiary);
    margin-left: 2px;
}

.purchase-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    font-size: 14px;
    font-weight: 600;
    color: var(--primary);
    background: var(--primary-light);
    border: none;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.purchase-btn:hover {
    background: var(--primary);
    color: white;
    transform: translateX(4px);
    box-shadow: 0 4px 12px rgba(87, 142, 126, 0.3);
}

.purchase-btn:active {
    transform: translateX(2px) scale(0.98);
}

.purchase-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-hover));
    color: white;
    box-shadow: 0 4px 14px rgba(87, 142, 126, 0.35);
}

.purchase-btn.primary:hover {
    transform: translateX(4px);
    box-shadow: 0 6px 20px rgba(87, 142, 126, 0.45);
}

/* Benefits */
.benefits-section {
    padding: 60px 0;
}

.section-title {
    text-align: center;
    font-size: 28px;
    font-weight: 800;
    color: var(--text-primary);
    margin-bottom: 40px;
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 24px;
}

.benefit-item {
    text-align: center;
    padding: 32px 24px;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    transition: all var(--transition-normal);
}

.benefit-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.benefit-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
    color: var(--primary);
    border-radius: 50%;
    margin: 0 auto 16px;
}

.benefit-item h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 8px;
}

.benefit-item p {
    font-size: 13px;
    color: var(--text-secondary);
    line-height: 1.5;
}

/* FAQ */
.faq-section {
    padding: 60px 0;
}

.faq-list {
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.faq-item {
    background: var(--bg-white);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    overflow: hidden;
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: var(--primary-light);
}

.faq-item[open] {
    border-color: var(--primary);
    box-shadow: var(--shadow-md);
}

.faq-item summary {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 20px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-primary);
    cursor: pointer;
    list-style: none;
    transition: background var(--transition-fast);
}

.faq-item summary::-webkit-details-marker {
    display: none;
}

.faq-item summary:hover {
    background: var(--bg-paper);
}

.faq-item summary svg {
    color: var(--text-tertiary);
    transition: transform var(--transition-normal);
    flex-shrink: 0;
}

.faq-item[open] summary svg {
    transform: rotate(180deg);
    color: var(--primary);
}

.faq-item p {
    padding: 0 20px 20px;
    font-size: 14px;
    color: var(--text-secondary);
    line-height: 1.7;
    animation: fadeIn var(--transition-normal);
}

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

/* Modal */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.25);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 80px 16px 16px;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
    z-index: 10000;
}

.modal-backdrop.is-open {
    opacity: 1;
    pointer-events: auto;
}

.modal-card {
    width: 60vw;
    height: 60vh;
    background: var(--bg-white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-xl);
    padding: 20px;
    display: flex;
    flex-direction: column;
    transform: translateY(-8px);
    transition: transform var(--transition-normal);
    overflow: hidden;
}

.modal-backdrop.is-open .modal-card {
    transform: translateY(0);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 8px;
}

.modal-header h3 {
    font-size: 18px;
    font-weight: 800;
    color: var(--text-dark);
}

.modal-close {
    border: none;
    background: var(--bg-paper);
    color: var(--text-secondary);
    border-radius: 8px;
    width: 32px;
    height: 32px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background var(--transition-fast), color var(--transition-fast);
}

.modal-close:hover {
    background: var(--primary-light);
    color: var(--primary);
}

.modal-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 24px;
    overflow: auto;
}

.payment-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    flex: 1;
    min-height: 0;
    margin-top: 16px;
}

.payment-left {
    display: flex;
    flex-direction: column;
    gap: 16px;
    padding-right: 24px;
    border-right: 1px solid var(--border);
}

.summary-lines {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.summary-line {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-secondary);
    padding: 8px 0;
    border-top: 1px solid var(--border);
}

.summary-header .summary-line {
    border-top: none;
    padding-top: 0;
}

.summary-line.total {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-dark);
}

.payment-right {
    display: flex;
    flex-direction: column;
    gap: 14px;
    padding-left: 24px;
}

.payment-section-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--text-dark);
}

.payment-divider {
    border: none;
    border-top: 1px solid var(--border);
    margin: 6px 0 2px;
}

.payment-block {
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 8px 10px;
    background: var(--bg-paper);
}

.payment-block.input-block {
    border-color: rgba(15, 23, 42, 0.08);
    background: #fbfbfa;
}

.input-row {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
    color: var(--text-dark);
}

.input-label {
    color: var(--text-secondary);
    min-width: 52px;
}

.input-value {
    flex: 1;
    color: var(--text-dark);
    font-weight: 600;
}

.input-field {
    flex: 1;
    min-width: 0;
    border: none;
    background: transparent;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-dark);
    outline: none;
    padding-left: 1ch;
    line-height: 18px;
    height: 18px;
}

.input-field::placeholder {
    color: var(--text-tertiary);
    font-weight: 500;
}

.check-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    font-size: 12px;
    color: var(--text-dark);
    line-height: 1.5;
}

.check-label {
    display: inline-flex;
    align-items: flex-start;
    gap: 10px;
}

.check-row input {
    margin-top: 2px;
}

.policy-detail-link {
    border: none;
    background: transparent;
    color: var(--primary);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    padding: 0;
    text-decoration: underline;
    text-underline-offset: 3px;
}

.policy-detail-link:hover {
    color: var(--primary-hover);
}

.policy-note {
    font-size: 12px;
    line-height: 1.6;
    color: var(--text-secondary);
    margin-top: -6px;
}

.payment-submit {
    border: none;
    background: var(--primary);
    color: #ffffff;
    font-size: 14px;
    font-weight: 700;
    border-radius: 12px;
    padding: 12px 16px;
    cursor: pointer;
    transition: background var(--transition-fast);
    margin-top: 6px;
}

.payment-submit:hover {
    background: var(--primary-hover);
}

.payment-submit:disabled {
    background: #d6d3d1;
    cursor: not-allowed;
}

/* Scroll Animation */
.animate-in {
    opacity: 1 !important;
    transform: translateY(0) !important;
}

/* Responsive */
@media (max-width: 768px) {
    .shop-main {
        padding: 88px 16px 60px;
    }

    .hero-section {
        padding: 40px 0 60px;
    }

    .hero-title {
        font-size: 28px;
    }

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

    .product-card {
        padding: 24px;
    }

    .product-features {
        min-height: 0;
    }

    .product-footer {
        flex-direction: column;
        align-items: flex-start;
        gap: 16px;
    }

    .purchase-btn {
        width: 100%;
        justify-content: center;
    }

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

    .benefit-item {
        padding: 24px 20px;
    }

    .modal-backdrop {
        padding: 60px 12px 12px;
    }

    .modal-card {
        width: 90vw;
        height: auto;
        max-height: 85vh;
    }

    .payment-grid {
        grid-template-columns: 1fr;
    }

    .payment-left {
        padding-right: 0;
        border-right: none;
        border-bottom: 1px solid var(--border);
        padding-bottom: 16px;
    }

    .payment-right {
        padding-left: 0;
    }
}

@media (max-width: 640px) {
    .modal-backdrop {
        padding: 48px 8px 8px;
    }

    .modal-card {
        width: 100%;
        max-height: 90vh;
        border-radius: var(--radius-md);
        padding: 16px;
    }

    .modal-header h3 {
        font-size: 16px;
    }

    .payment-grid {
        gap: 16px;
        margin-top: 12px;
    }

    .summary-line {
        font-size: 12px;
    }

    .summary-line.total {
        font-size: 13px;
    }

    .payment-section-title,
    .input-row,
    .input-field {
        font-size: 12px;
    }

    .input-label {
        min-width: 44px;
    }

    .check-row,
    .policy-note {
        font-size: 11px;
    }

    .payment-submit {
        font-size: 13px;
        padding: 10px 14px;
    }
}

/* Accessibility */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
}

::selection {
    background: var(--primary-light);
    color: var(--primary-hover);
}