/* Telegram Theme Variables */
:root {
    --bg-color: var(--tg-theme-bg-color, #1c1c1e);
    --text-color: var(--tg-theme-text-color, #ffffff);
    --hint-color: var(--tg-theme-hint-color, #98989d);
    --secondary-bg: var(--tg-theme-secondary-bg-color, #2c2c2e);

    /* Beige / Gold Brand colors */
    --brand-main: #E3CFA8;
    --brand-dark: #CBA55B;
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
}

@media (prefers-color-scheme: light) {
    :root {
        --glass-bg: rgba(0, 0, 0, 0.03);
        --glass-border: rgba(0, 0, 0, 0.08);
    }
}

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    padding-bottom: 80px;
    -webkit-font-smoothing: antialiased;
}

/* Header */
header {
    padding: 16px;
    display: flex;
    justify-content: center;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 100;
    background: var(--bg-color);
    border-bottom: 1px solid var(--glass-border);
}

.logo-container {
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 900;
    font-size: 24px;
    color: var(--brand-main);
    letter-spacing: 2px;
}

/* Tab Bar */
.tab-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 60px;
    background: var(--secondary-bg);
    display: flex;
    justify-content: space-around;
    align-items: center;
    border-top: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
    z-index: 1000;
}

.tab-btn {
    background: none;
    border: none;
    color: var(--hint-color);
    font-size: 11px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    cursor: pointer;
    transition: 0.2s;
    outline: none;
}

.tab-btn.active {
    color: var(--brand-main);
}

.tab-btn i {
    font-size: 22px;
}

/* Grids */
.page {
    display: none;
    padding: 16px;
}

.page.active {
    display: block;
    animation: fadeIn 0.3s;
}

.product-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.product-card {
    background: var(--secondary-bg);
    border: 1px solid var(--glass-border);
    border-radius: 16px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
}

.product-card img {
    width: 100%;
    aspect-ratio: 1;
    object-fit: cover;
    background: var(--glass-bg);
}

.product-info {
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    flex-grow: 1;
}

.product-title {
    font-size: 14px;
    font-weight: 600;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.product-price {
    font-size: 14px;
    color: var(--brand-main);
    font-weight: bold;
}

.add-btn {
    background: var(--brand-main);
    color: #000;
    border: none;
    border-radius: 8px;
    padding: 10px;
    font-weight: bold;
    margin-top: auto;
    cursor: pointer;
    transition: transform 0.1s;
}

.add-btn:active {
    transform: scale(0.95);
}

.qty-control {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--glass-bg);
    border-radius: 8px;
    overflow: hidden;
    margin-top: auto;
}

.qty-btn {
    background: none;
    border: none;
    color: var(--text-color);
    width: 35px;
    height: 35px;
    font-size: 18px;
}

.qty-val {
    font-weight: bold;
}

/* Profile */
.profile-card {
    background: var(--secondary-bg);
    border-radius: 16px;
    padding: 20px;
    text-align: center;
    border: 1px solid var(--glass-border);
}

.prof-img {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    object-fit: cover;
    margin-bottom: 12px;
    border: 3px solid var(--brand-main);
}

h2 {
    margin: 0 0 8px 0;
}

p {
    margin: 0;
    color: var(--hint-color);
}

.balance-badge {
    display: inline-block;
    background: var(--glass-bg);
    border: 1px solid var(--brand-main);
    color: var(--brand-main);
    padding: 8px 16px;
    border-radius: 20px;
    font-weight: bold;
    margin-top: 16px;
    font-size: 18px;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ── Help Section ─────────────────────────────────────────── */
.help-section {
    margin-top: 20px;
}

.help-title {
    font-size: 18px;
    margin-bottom: 12px;
}

.accordion-item {
    background: var(--secondary-bg);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    margin-bottom: 8px;
    overflow: hidden;
}

.accordion-btn {
    width: 100%;
    background: none;
    border: none;
    color: var(--text-color);
    font-size: 15px;
    font-weight: 600;
    padding: 14px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    text-align: left;
}

.accordion-btn i {
    transition: transform 0.3s;
}

.accordion-btn.open i {
    transform: rotate(180deg);
}

.accordion-body {
    display: none;
    padding: 0 16px 14px 16px;
    font-size: 14px;
    color: var(--hint-color);
    line-height: 1.6;
}

.accordion-body.open {
    display: block;
    animation: fadeIn 0.2s;
}

/* ── Checkout Modal ───────────────────────────────────────── */
.modal-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.6);
    z-index: 2000;
    align-items: flex-end;
}

.modal-overlay.open {
    display: flex;
}

.modal-sheet {
    background: var(--bg-color);
    border-radius: 20px 20px 0 0;
    padding: 16px 20px 32px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        transform: translateY(100%);
    }

    to {
        transform: translateY(0);
    }
}

.modal-handle {
    width: 40px;
    height: 4px;
    background: var(--glass-border);
    border-radius: 2px;
    margin: 0 auto 16px;
}

/* User info */
.checkout-user-info {
    background: var(--secondary-bg);
    border-radius: 12px;
    padding: 12px 16px;
    margin-bottom: 16px;
    border: 1px solid var(--glass-border);
}

.cui-row {
    display: flex;
    justify-content: space-between;
    gap: 8px;
    padding: 4px 0;
    font-size: 14px;
}

.cui-row span {
    color: var(--hint-color);
}

/* Cart items in modal */
.co-cart-list {
    margin-bottom: 12px;
}

.co-cart-item {
    display: flex;
    justify-content: space-between;
    font-size: 14px;
    padding: 8px 0;
    border-bottom: 1px solid var(--glass-border);
}

/* Totals */
.co-totals {
    margin: 12px 0;
}

.co-row {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 15px;
}

/* Promo row */
.co-promo-row {
    display: flex;
    gap: 8px;
    margin-bottom: 4px;
}

.co-input {
    flex: 1;
    background: var(--secondary-bg);
    border: 1px solid var(--glass-border);
    border-radius: 10px;
    padding: 10px 14px;
    color: var(--text-color);
    font-size: 14px;
    outline: none;
}

.co-promo-btn {
    background: var(--brand-main);
    color: #000;
    border: none;
    border-radius: 10px;
    padding: 10px 14px;
    font-weight: bold;
    font-size: 14px;
    cursor: pointer;
}

/* Cashback toggle row */
.co-toggle-row {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 0;
    font-size: 14px;
    cursor: pointer;
    color: var(--hint-color);
}

.co-toggle-row input[type=checkbox] {
    width: 18px;
    height: 18px;
    accent-color: var(--brand-main);
}

/* Confirm button */
.confirm-btn {
    width: 100%;
    background: var(--brand-main);
    color: #000;
    border: none;
    border-radius: 12px;
    padding: 16px;
    font-size: 16px;
    font-weight: bold;
    margin-top: 16px;
    cursor: pointer;
    transition: transform 0.1s;
}

.confirm-btn:active {
    transform: scale(0.97);
}