/* Основные переменные и сброс */
:root {
    /* Цветовые переменные Telegram (по умолчанию темная тема) */
    --bg-color: var(--tg-theme-bg-color, #17212b);
    --text-color: var(--tg-theme-text-color, #f5f5f5);
    --hint-color: var(--tg-theme-hint-color, #708499);
    --link-color: var(--tg-theme-link-color, #5288c1);
    --button-color: var(--tg-theme-button-color, #5288c1);
    --button-text-color: var(--tg-theme-button-text-color, #ffffff);
    --secondary-bg-color: var(--tg-theme-secondary-bg-color, #0e1621);
    
    /* Дополнительные премиум цвета */
    --accent-color: #4facfe;
    --accent-color-hover: #00f2fe;
    --border-radius: 14px;
    --card-bg: rgba(255, 255, 255, 0.04);
    --card-border: rgba(255, 255, 255, 0.06);
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.25);
    --transition-speed: 0.2s;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Outfit', sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.4;
    overflow-x: hidden;
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-bottom: 20px;
}

/* Header & Tabs */
.app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background-color: rgba(23, 33, 43, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--card-border);
    padding: 10px 16px;
}

/* Support light theme in Telegram */
@media (prefers-color-scheme: light) {
    :root {
        --bg-color: var(--tg-theme-bg-color, #ffffff);
        --text-color: var(--tg-theme-text-color, #000000);
        --hint-color: var(--tg-theme-hint-color, #999999);
        --link-color: var(--tg-theme-link-color, #2481cc);
        --button-color: var(--tg-theme-button-color, #2481cc);
        --button-text-color: var(--tg-theme-button-text-color, #ffffff);
        --secondary-bg-color: var(--tg-theme-secondary-bg-color, #f4f4f5);
        --card-bg: rgba(0, 0, 0, 0.02);
        --card-border: rgba(0, 0, 0, 0.06);
    }
    .app-header {
        background-color: rgba(255, 255, 255, 0.85);
    }
}

.tabs-navigation {
    display: flex;
    gap: 12px;
}

.tab-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 12px;
    color: var(--hint-color);
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
}

.tab-btn:hover {
    color: var(--text-color);
}

.tab-btn.active {
    background: var(--button-color);
    color: var(--button-text-color);
    border-color: var(--button-color);
    box-shadow: 0 4px 12px rgba(82, 136, 193, 0.3);
}

.tab-icon {
    transition: transform 0.2s ease;
}

.tab-btn:active .tab-icon {
    transform: scale(0.85);
}

.cart-icon-wrapper {
    position: relative;
    display: inline-flex;
}

.badge {
    position: absolute;
    top: -6px;
    right: -10px;
    background-color: #ef4444;
    color: white;
    font-size: 10px;
    font-weight: 700;
    border-radius: 10px;
    padding: 2px 6px;
    min-width: 18px;
    text-align: center;
    transition: all 0.3s ease;
}

.badge.hide {
    transform: scale(0);
    opacity: 0;
}

/* App Content Area */
.app-content {
    flex: 1;
    padding: 16px;
}

.tab-content {
    display: none;
}

.tab-content.active {
    display: block;
    animation: fadeIn 0.3s ease;
}

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

/* Search Bar */
.search-bar {
    position: relative;
    margin-bottom: 16px;
}

#search-input {
    width: 100%;
    background-color: var(--secondary-bg-color);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 14px 44px 14px 16px;
    color: var(--text-color);
    font-size: 15px;
    outline: none;
    transition: all var(--transition-speed) ease;
}

#search-input:focus {
    border-color: var(--button-color);
    box-shadow: 0 0 0 2px rgba(82, 136, 193, 0.15);
}

#search-input::placeholder {
    color: var(--hint-color);
}

.clear-btn {
    position: absolute;
    right: 12px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--hint-color);
    padding: 4px;
    cursor: pointer;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-btn:hover {
    color: var(--text-color);
    background-color: var(--card-bg);
}

.clear-btn.hide {
    display: none;
}

/* Products Grid */
.products-grid {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

/* Info Placeholder (Loader, Empty, etc.) */
.info-placeholder {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 60px 20px;
    text-align: center;
    color: var(--hint-color);
}

.info-placeholder p {
    font-size: 15px;
    margin-top: 12px;
}

.empty-icon {
    color: var(--hint-color);
    opacity: 0.5;
}

/* Product Card */
.product-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    transition: transform var(--transition-speed) ease, border-color var(--transition-speed) ease;
}

.product-card:active {
    transform: scale(0.98);
}

.product-info-header {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.product-icon-container {
    flex-shrink: 0;
    width: 44px;
    height: 44px;
    background-color: rgba(79, 172, 254, 0.1);
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
}

.product-text {
    flex: 1;
}

.product-name {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-color);
}

.product-meta {
    font-size: 12px;
    color: var(--hint-color);
}

.product-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-top: 1px solid rgba(255, 255, 255, 0.03);
    padding-top: 10px;
}

.product-price-section {
    display: flex;
    flex-direction: column;
}

.price-label {
    font-size: 10px;
    color: var(--hint-color);
    text-transform: uppercase;
}

.price-value {
    font-size: 17px;
    font-weight: 700;
    color: var(--accent-color);
}

.price-clarify {
    font-size: 14px;
    color: var(--hint-color);
    font-style: italic;
}

.stock-status {
    font-size: 11px;
    font-weight: 500;
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 6px;
    border-radius: 6px;
    background-color: rgba(255, 255, 255, 0.03);
}

.stock-in {
    color: #10b981;
}

.stock-out {
    color: #f59e0b;
}

/* Buttons */
.primary-btn {
    background: var(--button-color);
    color: var(--button-text-color);
    border: none;
    border-radius: var(--border-radius);
    padding: 12px 18px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: opacity var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.primary-btn:active {
    opacity: 0.8;
}

.secondary-btn {
    background: var(--card-bg);
    color: var(--text-color);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 12px 18px;
    font-weight: 500;
    font-size: 14px;
    cursor: pointer;
    transition: background var(--transition-speed) ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.secondary-btn:active {
    background: var(--card-border);
}

.btn-block {
    width: 100%;
}

.add-btn {
    padding: 10px 14px;
    font-size: 13px;
    border-radius: 10px;
}

/* Cart Tab Elements */
#cart-items-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 20px;
}

.cart-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
}

.cart-item-details {
    flex: 1;
}

.cart-item-name {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
}

.cart-item-price {
    font-size: 14px;
    font-weight: 700;
    color: var(--accent-color);
}

.cart-controls {
    display: flex;
    align-items: center;
    gap: 10px;
    background-color: var(--secondary-bg-color);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 4px;
}

.control-btn {
    width: 28px;
    height: 28px;
    border-radius: 8px;
    border: none;
    background: var(--card-bg);
    color: var(--text-color);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    cursor: pointer;
}

.control-btn:active {
    background-color: var(--card-border);
}

.cart-qty {
    font-size: 14px;
    font-weight: 600;
    min-width: 20px;
    text-align: center;
}

/* Cart Summary Card */
.cart-summary-card {
    background: rgba(82, 136, 193, 0.05);
    border: 1px dashed var(--button-color);
    border-radius: var(--border-radius);
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.summary-row {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
}

.total-price-row {
    font-size: 17px;
    font-weight: 700;
    border-top: 1px solid var(--card-border);
    padding-top: 10px;
    color: var(--text-color);
}

.total-price-row span:last-child {
    color: var(--accent-color);
}

/* Modal Overlay & Content */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(8px);
    z-index: 1000;
    display: flex;
    align-items: flex-end;
    transition: opacity 0.3s ease;
}

.modal-overlay.hide {
    opacity: 0;
    pointer-events: none;
}

.modal-content {
    width: 100%;
    background-color: var(--bg-color);
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
    border-top: 1px solid var(--card-border);
    padding: 24px 16px;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.3);
    max-height: 90vh;
    overflow-y: auto;
    transform: translateY(0);
    transition: transform 0.3s cubic-bezier(0.1, 0.76, 0.55, 0.94);
}

.modal-overlay.hide .modal-content {
    transform: translateY(100%);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 700;
}

.close-modal-btn {
    background: none;
    border: none;
    color: var(--hint-color);
    cursor: pointer;
}

/* Checkout Form elements */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    font-size: 12px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--hint-color);
    text-transform: uppercase;
}

.form-group input, .form-group textarea {
    width: 100%;
    background-color: var(--secondary-bg-color);
    border: 1px solid var(--card-border);
    border-radius: 10px;
    padding: 12px 14px;
    color: var(--text-color);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s ease;
}

.form-group input:focus, .form-group textarea:focus {
    border-color: var(--button-color);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

/* Spinner Loader */
.spinner {
    border: 3px solid rgba(255, 255, 255, 0.1);
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border-left-color: var(--button-color);
    animation: spin 1s linear infinite;
    margin: 20px auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* Helpers */
.hide {
    display: none !important;
}

/* Recommendations slider */
.recommendations-section {
    margin: 20px 0;
    padding-top: 16px;
    border-top: 1px solid var(--card-border);
}

.recommendations-title {
    font-size: 15px;
    font-weight: 600;
    margin-bottom: 12px;
    color: var(--text-color);
}

.recommendations-slider {
    display: flex;
    gap: 12px;
    overflow-x: auto;
    padding-bottom: 12px;
    scrollbar-width: none; /* Hide scrollbar for Firefox */
}

.recommendations-slider::-webkit-scrollbar {
    display: none; /* Hide scrollbar for Chrome, Safari and Opera */
}

.rec-card {
    flex: 0 0 160px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--border-radius);
    padding: 12px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    gap: 8px;
    font-size: 13px;
    transition: transform 0.2s ease;
}

.rec-card:active {
    transform: scale(0.97);
}

.rec-name {
    font-weight: 600;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    height: 34px;
    color: var(--text-color);
}

.rec-meta {
    font-size: 10px;
    color: var(--hint-color);
}

.rec-footer {
    display: flex;
    flex-direction: column;
    gap: 6px;
    margin-top: 4px;
}

.rec-price {
    font-weight: 700;
    color: var(--accent-color);
    font-size: 13px;
}

.rec-add-btn {
    width: 100%;
    padding: 6px 10px;
    font-size: 11px;
    border-radius: 8px;
}

/* Image display adjustments */
.product-icon-container.has-image {
    background-color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 3px;
}

/* Light theme support override */
@media (prefers-color-scheme: light) {
    .product-icon-container.has-image {
        border-color: rgba(0, 0, 0, 0.08);
    }
}

.product-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 8px;
    opacity: 0;
    animation: fadeInImage 0.3s ease forwards;
}

@keyframes fadeInImage {
    to { opacity: 1; }
}

.rec-header {
    display: flex;
    gap: 8px;
    align-items: center;
}

.rec-img-container {
    width: 32px;
    height: 32px;
    flex-shrink: 0;
    background-color: rgba(79, 172, 254, 0.1);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-color);
}

.rec-img-container.has-image {
    background-color: #ffffff;
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 2px;
}

@media (prefers-color-scheme: light) {
    .rec-img-container.has-image {
        border-color: rgba(0, 0, 0, 0.08);
    }
}

.rec-img {
    width: 100%;
    height: 100%;
    object-fit: contain;
    border-radius: 4px;
    opacity: 0;
    animation: fadeInImage 0.3s ease forwards;
}

/* Custom Success Modal Styles */
.success-modal-content {
    text-align: center;
    padding: 32px 24px;
    background: linear-gradient(135deg, #1d2b1f 0%, #111a12 100%) !important;
    border-top: 2px solid #4caf50 !important;
    border-top-left-radius: 24px;
    border-top-right-radius: 24px;
    color: #ffffff !important;
}

.success-illustration {
    display: flex;
    justify-content: center;
    margin-bottom: 20px;
}

.success-icon-ring {
    width: 64px;
    height: 64px;
    border-radius: 50%;
    background-color: rgba(76, 175, 80, 0.15);
    border: 2px solid #4caf50;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #4caf50;
    animation: success-scale 0.5s cubic-bezier(0.175, 0.885, 0.32, 1.275) both;
}

.success-check-svg {
    width: 32px;
    height: 32px;
}

@keyframes success-scale {
    0% {
        transform: scale(0);
        opacity: 0;
    }
    100% {
        transform: scale(1);
        opacity: 1;
    }
}

.success-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 8px;
    color: #e8f5e9 !important;
}

.success-order-id {
    display: inline-block;
    padding: 6px 12px;
    background-color: rgba(76, 175, 80, 0.15);
    border: 1px dashed rgba(76, 175, 80, 0.4);
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    color: #81c784 !important;
    margin-bottom: 16px;
    font-family: monospace;
}

.success-text {
    font-size: 15px;
    line-height: 1.5;
    color: #a5d6a7 !important;
    margin-bottom: 24px;
}

.success-close-btn {
    background-color: #2e7d32 !important;
    border-color: #2e7d32 !important;
    color: #ffffff !important;
    box-shadow: 0 4px 12px rgba(46, 125, 50, 0.4) !important;
}

.success-close-btn:active {
    background-color: #1b5e20 !important;
}