:root {
    --bg: var(--tg-theme-bg-color, #0a0a1a);
    --text: var(--tg-theme-text-color, #eee);
    --hint: var(--tg-theme-hint-color, #888);
    --link: var(--tg-theme-link-color, #7c4dff);
    --btn: var(--tg-theme-button-color, #7c4dff);
    --btn-text: var(--tg-theme-button-text-color, #fff);
    --secondary-bg: var(--tg-theme-secondary-bg-color, #111128);
    --card-bg: rgba(255, 255, 255, 0.06);
    --card-border: rgba(255, 255, 255, 0.08);
    --accent: #7c4dff;
    --accent-glow: rgba(124, 77, 255, 0.3);
    --green: #00e676;
    --red: #ff5252;
    --orange: #ffab40;
    --radius: 16px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    overflow-x: hidden;
}

/* Header */
.header {
    position: relative;
    text-align: center;
    padding: 32px 16px 24px;
    background: linear-gradient(160deg, #0f0c29 0%, #1a0a3e 40%, #24243e 100%);
    overflow: hidden;
}

.header-glow {
    position: absolute;
    top: -50%;
    left: 50%;
    transform: translateX(-50%);
    width: 300px;
    height: 300px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
}

.header-content { position: relative; z-index: 1; }

.header-logo {
    margin-bottom: 8px;
}

.logo-icon {
    font-size: 52px;
    filter: drop-shadow(0 0 20px var(--accent-glow));
}

.header-title {
    font-size: 24px;
    font-weight: 800;
    letter-spacing: 3px;
    background: linear-gradient(135deg, #fff, #b388ff);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header-sub {
    font-size: 12px;
    color: var(--hint);
    letter-spacing: 2px;
    margin-top: 4px;
    text-transform: uppercase;
}

/* Tabs */
.tabs {
    display: flex;
    background: var(--secondary-bg);
    border-bottom: 1px solid var(--card-border);
    position: sticky;
    top: 0;
    z-index: 10;
    backdrop-filter: blur(20px);
}

.tab {
    flex: 1;
    padding: 12px 8px;
    border: none;
    background: none;
    color: var(--hint);
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    border-bottom: 2px solid transparent;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
}

.tab-icon { font-size: 18px; }

.tab.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}

.tab-content {
    display: none;
    padding: 16px;
    padding-bottom: 40px;
}

.tab-content.active { display: block; }

.hidden { display: none !important; }

/* Catalog Header */
.catalog-header {
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text);
}

.catalog-header:empty { display: none; }

/* Categories */
.categories {
    display: flex;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 14px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
}

.categories::-webkit-scrollbar { display: none; }

.category-chip {
    flex-shrink: 0;
    padding: 8px 18px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 24px;
    color: var(--hint);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.3s;
    white-space: nowrap;
}

.category-chip.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Products Grid */
.products {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
}

.product-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    overflow: hidden;
    cursor: pointer;
    transition: all 0.3s;
}

.product-card:active {
    transform: scale(0.96);
}

.product-img {
    width: 100%;
    height: 150px;
    background: linear-gradient(135deg, rgba(124,77,255,0.1), rgba(255,255,255,0.03));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 44px;
    color: var(--hint);
    overflow: hidden;
}

.product-img img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.product-info { padding: 12px; }

.product-name {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.3;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 17px;
    font-weight: 800;
    color: var(--accent);
}

.product-stock {
    font-size: 11px;
    margin-top: 4px;
    font-weight: 500;
}

.stock-yes { color: var(--green); }
.stock-no { color: var(--red); }

.no-products {
    grid-column: 1 / -1;
    text-align: center;
    padding: 60px 20px;
    color: var(--hint);
    font-size: 15px;
}

/* Modal */
.modal {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    z-index: 100;
    display: flex;
    align-items: flex-end;
    justify-content: center;
}

.modal-overlay {
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(8px);
    z-index: 1;
}

.modal-content {
    position: relative;
    z-index: 2;
    background: var(--secondary-bg);
    border-radius: 24px 24px 0 0;
    padding: 24px 20px calc(32px + env(safe-area-inset-bottom, 0px));
    width: 100%;
    max-height: 85vh;
    overflow-y: auto;
    border-top: 1px solid var(--card-border);
    -webkit-overflow-scrolling: touch;
}

.modal-close {
    position: absolute;
    top: 16px; right: 20px;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--hint);
    font-size: 22px;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-img {
    width: 100%;
    max-height: 300px;
    object-fit: cover;
    border-radius: var(--radius);
    margin-bottom: 16px;
}

.modal-content h2 {
    font-size: 22px;
    margin-bottom: 12px;
    padding-right: 40px;
}

.modal-price {
    font-size: 26px;
    font-weight: 800;
    color: var(--accent);
    margin-bottom: 8px;
}

.modal-stock {
    font-size: 14px;
    margin-bottom: 12px;
    font-weight: 600;
}

.modal-desc {
    color: var(--hint);
    font-size: 14px;
    line-height: 1.6;
    margin-bottom: 20px;
}

.btn-order {
    width: 100%;
    padding: 16px;
    background: linear-gradient(135deg, var(--accent), #651fff);
    border: none;
    border-radius: 14px;
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--accent-glow);
    position: relative;
    z-index: 5;
    -webkit-tap-highlight-color: rgba(124, 77, 255, 0.3);
    touch-action: manipulation;
    margin-top: 8px;
    margin-bottom: 8px;
}

/* Info */
.info-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 24px;
    white-space: pre-line;
    line-height: 1.7;
    font-size: 14px;
}

/* Contact & Footer */
.contact-bar {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 20px;
    margin-top: 20px;
    text-align: center;
    white-space: pre-line;
    line-height: 1.6;
}

.contact-bar:empty { display: none; }

.footer-bar {
    text-align: center;
    padding: 20px;
    margin-top: 12px;
    color: var(--hint);
    font-size: 11px;
    letter-spacing: 0.5px;
}

.footer-bar:empty { display: none; }

/* Admin */
.admin-section { max-width: 600px; }

.admin-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    overflow-x: auto;
}

.admin-nav-btn {
    flex-shrink: 0;
    padding: 10px 20px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    background: var(--card-bg);
    color: var(--hint);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
}

.admin-nav-btn.active {
    background: var(--accent);
    border-color: var(--accent);
    color: #fff;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.admin-panel { display: none; }
.admin-panel.active { display: block; }

.admin-card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: var(--radius);
    padding: 18px;
    margin-bottom: 14px;
}

.admin-card-header {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 14px;
}

.admin-card-header h3 {
    font-size: 15px;
    font-weight: 700;
    flex: 1;
}

.admin-card-icon { font-size: 20px; }

.badge {
    background: var(--accent);
    color: #fff;
    font-size: 11px;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 10px;
    min-width: 24px;
    text-align: center;
}

.admin-card input,
.admin-card textarea,
.admin-card select {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 10px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-size: 14px;
    outline: none;
    transition: border-color 0.3s;
}

.admin-card input:focus,
.admin-card textarea:focus,
.admin-card select:focus {
    border-color: var(--accent);
}

.admin-card textarea {
    resize: vertical;
    min-height: 60px;
}

.btn {
    padding: 12px 24px;
    border: none;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.btn:active { transform: scale(0.97); opacity: 0.85; }

.btn-primary {
    background: linear-gradient(135deg, var(--accent), #651fff);
    color: #fff;
    width: 100%;
    box-shadow: 0 4px 15px var(--accent-glow);
}

.btn-save { margin-top: 4px; }

.btn-danger {
    background: rgba(255, 82, 82, 0.15);
    color: var(--red);
    padding: 8px 14px;
    font-size: 13px;
    border: 1px solid rgba(255, 82, 82, 0.2);
}

.btn-edit {
    background: rgba(255, 171, 64, 0.15);
    color: var(--orange);
    padding: 8px 14px;
    font-size: 13px;
    border: 1px solid rgba(255, 171, 64, 0.2);
}

.btn-stock {
    background: rgba(0, 230, 118, 0.15);
    color: var(--green);
    padding: 8px 14px;
    font-size: 13px;
    border: 1px solid rgba(0, 230, 118, 0.2);
}

.btn-stock.out {
    background: rgba(255, 82, 82, 0.15);
    color: var(--red);
    border-color: rgba(255, 82, 82, 0.2);
}

.admin-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 14px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    margin-bottom: 8px;
}

.admin-item-name {
    font-size: 14px;
    flex: 1;
    font-weight: 500;
}

.admin-item-actions {
    display: flex;
    gap: 6px;
    flex-shrink: 0;
}

/* Toggle Switch */
.toggle-label {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 14px;
    font-size: 14px;
    cursor: pointer;
}

.toggle-label input { display: none; }

.toggle-switch {
    width: 44px;
    height: 24px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 12px;
    position: relative;
    transition: background 0.3s;
    flex-shrink: 0;
}

.toggle-switch::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #fff;
    top: 2px;
    left: 2px;
    transition: transform 0.3s;
}

.toggle-label input:checked + .toggle-switch {
    background: var(--green);
}

.toggle-label input:checked + .toggle-switch::after {
    transform: translateX(20px);
}

.admin-cat-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--card-border);
    border-radius: 10px;
    background: rgba(255,255,255,0.04);
    color: var(--text);
    font-size: 13px;
    margin-right: 10px;
    outline: none;
}

.admin-cat-input:focus { border-color: var(--accent); }

/* Toast */
.toast {
    position: fixed;
    bottom: 24px;
    left: 50%;
    transform: translateX(-50%);
    background: linear-gradient(135deg, var(--accent), #651fff);
    color: #fff;
    padding: 12px 28px;
    border-radius: 24px;
    font-size: 14px;
    font-weight: 600;
    z-index: 200;
    box-shadow: 0 8px 30px var(--accent-glow);
    animation: toastIn 2.2s ease forwards;
}

@keyframes toastIn {
    0% { opacity: 0; transform: translateX(-50%) translateY(20px); }
    15% { opacity: 1; transform: translateX(-50%) translateY(0); }
    80% { opacity: 1; }
    100% { opacity: 0; transform: translateX(-50%) translateY(-10px); }
}

/* Edit modal inputs */
.modal-content input,
.modal-content textarea,
.modal-content select {
    width: 100%;
    padding: 12px 14px;
    margin-bottom: 10px;
    border: 1px solid var(--card-border);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-size: 14px;
    outline: none;
}

.modal-content input:focus,
.modal-content textarea:focus,
.modal-content select:focus {
    border-color: var(--accent);
}

.modal-content textarea {
    resize: vertical;
    min-height: 60px;
}

.modal-content .btn-primary {
    margin-top: 8px;
}

.upload-group {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 10px;
}

.btn-upload {
    background: rgba(124, 77, 255, 0.15);
    color: var(--accent);
    border: 1px solid rgba(124, 77, 255, 0.3);
    padding: 10px 18px;
    border-radius: 12px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.upload-status {
    font-size: 13px;
    color: var(--green);
}