/* Mobile-first experience layer.
   Loaded after the legacy stylesheet to prioritize small screens without
   changing business rules or server contracts. */

:root {
    --mobile-bg: #f7faf7;
    --mobile-surface: #fffdfa;
    --mobile-ink: #17362f;
    --mobile-muted: #506176;
    --mobile-border: #dfe7e2;
    --mobile-accent: #0f766e;
    --mobile-accent-strong: #0b534c;
    --mobile-tap: 44px;
    --mobile-radius: 8px;
    --mobile-shadow: 0 14px 32px rgba(23, 54, 47, 0.1);
}

.mobile-nav-preferences {
    display: none;
}

.mobile-header-action {
    display: none;
}

.admin-filter-sheet {
    padding: 0 !important;
    overflow: hidden;
}

.admin-filter-sheet summary {
    min-height: 52px;
    padding: 0 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    color: var(--mobile-ink);
    font-weight: 850;
    cursor: pointer;
    list-style: none;
}

.admin-filter-sheet summary::-webkit-details-marker {
    display: none;
}

.admin-filter-sheet summary::after {
    content: "+";
    color: var(--mobile-accent);
    font-size: 1.3rem;
}

.admin-filter-sheet[open] summary::after {
    content: "-";
}

.admin-filter-sheet form {
    padding: 0 16px 16px;
}

@media (max-width: 768px) {
    html,
    body {
        overflow-x: hidden;
        background: var(--mobile-bg);
    }

    body {
        font-size: 16px;
    }

    header {
        min-height: 64px;
        padding: calc(6px + env(safe-area-inset-top, 0px)) 14px 6px;
        background: rgba(255, 253, 250, 0.97);
        border-bottom: 1px solid var(--mobile-border);
        box-shadow: 0 8px 22px rgba(23, 54, 47, 0.08);
        backdrop-filter: blur(14px);
    }

    .header-top {
        min-height: 52px;
        flex-wrap: nowrap;
        gap: 10px;
    }

    .brand,
    .brand.has-logo {
        flex: 1 1 auto;
        justify-content: flex-start;
        min-width: 0;
    }

    .brand-logo-link {
        min-height: var(--mobile-tap);
        margin-left: 0;
    }

    .site-logo {
        max-height: 34px;
        max-width: 116px;
    }

    .mobile-menu-toggle {
        width: var(--mobile-tap);
        height: var(--mobile-tap);
        margin-right: 4px;
        border-radius: var(--mobile-radius);
    }

    .mobile-header-action {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        min-height: 40px;
        padding: 0 12px;
        border: 1px solid rgba(15, 118, 110, 0.22);
        border-radius: var(--mobile-radius);
        background: #f4f8f5;
        color: var(--mobile-accent-strong);
        text-decoration: none;
        font-size: 0.86rem;
        font-weight: 850;
        white-space: nowrap;
    }

    .header-controls {
        display: none !important;
    }

    body.auth-focused .header-controls,
    body.checkout-focused .header-controls {
        display: flex !important;
        width: auto;
        order: 0;
        margin: 0;
    }

    body.auth-focused .header-controls form,
    body.checkout-focused .header-controls form,
    body.account-focused .header-controls {
        display: none !important;
    }

    .main-nav {
        width: min(88vw, 320px);
        max-width: none;
        padding: calc(72px + env(safe-area-inset-top, 0px)) 14px 24px;
        background: var(--mobile-surface);
        box-shadow: 12px 0 34px rgba(23, 54, 47, 0.24);
    }

    .main-nav a {
        min-height: 48px;
        border-radius: var(--mobile-radius);
        border-color: var(--mobile-border);
        color: var(--mobile-ink);
        font-weight: 750;
    }

    .mobile-nav-preferences {
        display: grid;
        gap: 12px;
        margin-top: 12px;
        padding: 14px;
        border: 1px solid var(--mobile-border);
        border-radius: var(--mobile-radius);
        background: #f7fbf7;
    }

    .mobile-nav-greeting {
        margin: 0;
        color: var(--mobile-ink);
        font-weight: 800;
    }

    .mobile-nav-preferences form {
        display: grid;
        gap: 6px;
    }

    .mobile-nav-preferences label {
        color: var(--mobile-muted);
        font-size: 0.78rem;
        font-weight: 800;
        letter-spacing: 0.04em;
        text-transform: uppercase;
    }

    .mobile-nav-preferences select {
        width: 100%;
        min-height: var(--mobile-tap);
        border: 1px solid #c8d6ce;
        border-radius: var(--mobile-radius);
        background: #fff;
        color: var(--mobile-ink);
        padding: 0 12px;
        font: inherit;
    }

    .mobile-nav-logout {
        justify-content: center !important;
        background: #fff !important;
        color: #991b1b !important;
        border-color: #fecaca !important;
    }

    main {
        padding: 14px 0 20px;
    }

    main > .container,
    .container {
        padding-left: 14px;
        padding-right: 14px;
    }

    .pill-btn,
    .order-btn,
    button,
    input,
    select,
    textarea {
        min-height: var(--mobile-tap);
    }

    .pill-btn,
    .order-btn {
        border-radius: var(--mobile-radius) !important;
        align-items: center;
        justify-content: center;
        text-align: center;
    }

    .card,
    .premium-product-card,
    .product-card,
    .account-next-card,
    .account-summary-tile,
    .order-card {
        border-radius: var(--mobile-radius) !important;
        box-shadow: 0 10px 24px rgba(23, 54, 47, 0.07);
    }

    .premium-hero {
        min-height: calc(100svh - 172px);
        margin: -14px -14px 22px;
        display: flex;
        align-items: flex-end;
    }

    .premium-hero-content {
        padding: 72px 14px 28px;
    }

    .premium-hero h1 {
        font-size: clamp(2rem, 9vw, 2.8rem);
        line-height: 1.08;
        max-width: 11ch;
    }

    .premium-hero p {
        font-size: 1.02rem;
        line-height: 1.55;
    }

    .premium-hero-actions {
        display: grid;
        grid-template-columns: 1fr;
        gap: 10px;
    }

    .premium-trust-strip {
        display: grid;
        grid-template-columns: 1fr;
        gap: 8px;
    }

    .premium-section-header {
        text-align: left;
    }

    .catalog-filter {
        display: flex;
        overflow-x: auto;
        padding-bottom: 8px;
        scroll-snap-type: x mandatory;
    }

    .catalog-filter-btn {
        flex: 0 0 auto;
        scroll-snap-align: start;
    }

    .product-selection-container {
        padding: 8px 0 24px;
    }

    .product-selection-container .page-header {
        text-align: left;
        margin: 8px 0 18px;
    }

    .product-selection-container .page-header h1 {
        font-size: 1.75rem;
        line-height: 1.15;
    }

    .request-ai-btn {
        width: 100%;
        margin-top: 14px;
    }

    .premium-fomo-notice {
        margin: 14px 0 16px;
        padding: 14px;
    }

    .product-type-grid {
        gap: 14px;
        margin-top: 16px;
    }

    .product-card {
        padding: 16px;
    }

    .product-card:hover {
        transform: none;
    }

    .stepper {
        min-height: 72px;
        margin: 14px -4px 18px;
        padding: 0 4px 12px;
        overflow-x: auto;
        scrollbar-width: none;
    }

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

    .stepper::before {
        top: 20px;
        left: 30px;
        right: 30px;
    }

    .step-pill {
        min-width: 78px;
        max-width: 92px;
        gap: 6px;
    }

    .step-index {
        width: 40px;
        height: 40px;
        border-width: 2px;
    }

    .step-pill span:not(.step-index) {
        max-width: 92px;
        font-size: 0.72rem;
        line-height: 1.18;
    }

    .grid-two,
    .admin-page .grid-two {
        grid-template-columns: 1fr !important;
    }

    .cart-page-container,
    .shipping-page-container,
    .payment-page-container {
        padding: 8px 0 24px !important;
    }

    .cart-header,
    .page-header-shipping,
    .page-header-payment {
        text-align: left !important;
        margin-bottom: 16px !important;
    }

    .cart-header h1,
    .page-header-shipping h1,
    .page-header-payment h1 {
        font-size: 1.75rem !important;
        line-height: 1.15 !important;
    }

    .cart-item-card,
    .cart-summary-card,
    .summary-card,
    .address-card,
    .order-summary-card,
    .summary-item-card,
    .payment-card,
    .price-summary-card,
    .payment-method-card {
        border-radius: var(--mobile-radius) !important;
        border-width: 1px !important;
    }

    .cart-item-card,
    .cart-summary-card,
    .summary-card,
    .address-card,
    .order-summary-card,
    .payment-card {
        padding: 16px !important;
        margin-bottom: 16px !important;
    }

    .cart-item-card:hover,
    .summary-item-card:hover,
    .address-option:hover,
    .payment-method-card:hover {
        transform: none !important;
    }

    .cart-item-card > div[style*="display:flex"],
    .item-header,
    .summary-item-header,
    .summary-total-row,
    .price-summary-row {
        align-items: flex-start !important;
        gap: 8px !important;
    }

    .summary-total-row,
    .price-summary-row,
    .summary-row {
        flex-wrap: wrap;
    }

    .summary-total-row.final strong,
    .summary-row.total span:last-child {
        font-size: 1.25rem !important;
    }

    .item-actions,
    .cart-actions {
        display: grid !important;
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

    .cart-actions {
        position: sticky;
        bottom: calc(10px + env(safe-area-inset-bottom, 0px));
        z-index: 20;
        padding: 10px;
        margin: 18px -8px 0 !important;
        border: 1px solid var(--mobile-border);
        border-radius: var(--mobile-radius);
        background: rgba(255, 253, 250, 0.96);
        box-shadow: var(--mobile-shadow);
        backdrop-filter: blur(14px);
    }

    .quantity-btn {
        width: var(--mobile-tap) !important;
        height: var(--mobile-tap) !important;
    }

    .selected-options-box,
    .item-options,
    .summary-options {
        overflow-wrap: anywhere;
    }

    .address-option,
    .payment-method-card {
        padding: 14px !important;
    }

    .address-form {
        padding: 16px !important;
        border-radius: var(--mobile-radius) !important;
    }

    .form-group {
        margin-bottom: 14px !important;
    }

    .btn-calculate,
    #payment-submit-btn,
    #payment-form button[type="submit"] {
        width: 100% !important;
        min-height: 52px !important;
        border-radius: var(--mobile-radius) !important;
    }

    .payment-methods-grid {
        grid-template-columns: 1fr !important;
        gap: 10px !important;
    }

    .payment-method-content {
        align-items: flex-start !important;
        gap: 12px !important;
    }

    .payment-method-icon {
        width: 44px !important;
        height: 44px !important;
        flex: 0 0 44px !important;
    }

    .payment-method-title {
        font-size: 1rem !important;
    }

    .payment-method-hint,
    .payment-method-subtitle {
        line-height: 1.4 !important;
    }

    #partial_points_card div[style*="display:flex"] {
        align-items: stretch !important;
        flex-direction: column !important;
    }

    #points_input {
        width: 100% !important;
    }

    form label {
        font-weight: 750;
        color: var(--mobile-ink);
    }

    input,
    select,
    textarea {
        font-size: 16px !important;
        border-radius: var(--mobile-radius) !important;
    }

    body.checkout-focused main {
        padding-top: 16px;
        padding-bottom: calc(86px + env(safe-area-inset-bottom, 0px));
    }

    body.checkout-focused header {
        min-height: 62px;
    }

    .checkout-help-link {
        min-height: var(--mobile-tap);
        white-space: nowrap;
    }

    .checkout-message-card {
        margin: 18px 0;
        padding: 18px;
    }

    .checkout-coupon-panel summary {
        min-height: 52px;
    }

    .account-dashboard-hero,
    .account-summary-grid {
        gap: 12px;
    }

    .account-next-card,
    .account-summary-tile,
    .account-section-card {
        padding: 16px;
    }

    .account-next-meta {
        gap: 6px;
    }

    .account-next-meta span {
        width: 100%;
    }

    .account-orders-priority {
        padding: 16px;
        margin-bottom: 14px;
    }

    .orders-filters {
        display: grid !important;
        grid-template-columns: 1fr;
        gap: 10px !important;
    }

    .order-card {
        padding: 16px;
    }

    .order-info-item {
        min-width: 0;
    }

    .order-status-badge,
    .order-delivery-priority {
        width: fit-content;
        max-width: 100%;
    }

    #cart-fixed-button {
        right: 16px;
        bottom: calc(16px + env(safe-area-inset-bottom, 0px));
    }

    #cart-fixed-button a {
        min-height: 58px;
        border-radius: var(--mobile-radius);
    }
}

@media (max-width: 720px) {
    .ai-assistant-modal {
        align-items: stretch;
        padding: 8px;
    }

    .ai-modal-shell,
    .ai-modal-shell.ai-mode-review {
        width: 100%;
        max-height: calc(100svh - 16px);
        min-height: calc(100svh - 16px);
    }

    .ai-modal-main {
        min-height: 0;
        padding: 14px;
    }

    .ai-modal-header {
        flex: 0 0 auto;
    }

    .ai-modal-header h3 {
        font-size: 1.55rem;
        line-height: 1.15;
    }

    .ai-modal-subtitle {
        line-height: 1.45;
    }

    .ai-chat-shell {
        min-height: calc(100svh - 176px);
        gap: 10px;
    }

    .ai-chat-thread {
        max-height: none;
        min-height: 0;
        flex: 1 1 auto;
    }

    .ai-chat-composer {
        position: sticky;
        bottom: 0;
        padding: 12px;
    }

    .ai-chat-meta {
        align-items: flex-start;
        flex-direction: column;
        gap: 6px;
    }

    .ai-chat-product-card {
        grid-template-columns: 70px minmax(0, 1fr);
    }

    .ai-chat-summary-metrics {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .admin-mobile-header {
        position: sticky !important;
        top: 0 !important;
        z-index: 1200 !important;
        min-height: 64px !important;
        padding: calc(10px + env(safe-area-inset-top, 0px)) 16px 10px !important;
        background: #10352f !important;
    }

    body.admin-nav-open {
        overflow: hidden !important;
    }

    .admin-mobile-header button {
        min-width: var(--mobile-tap) !important;
        min-height: var(--mobile-tap) !important;
        border-radius: var(--mobile-radius) !important;
    }

    .admin-sidebar {
        width: min(86vw, 320px) !important;
        left: calc(-1 * min(86vw, 320px)) !important;
        background: var(--color-brand-900, #10352f) !important;
        box-shadow: 14px 0 34px rgba(0, 0, 0, 0.28) !important;
    }

    .admin-sidebar.open {
        left: 0 !important;
    }

    .admin-nav a {
        min-height: 48px !important;
        border-radius: var(--mobile-radius) !important;
        font-size: 0.98rem !important;
    }

    .admin-content {
        padding: 16px 12px 28px !important;
    }

    .admin-dashboard-hero,
    .admin-page > .page-header {
        align-items: stretch !important;
        flex-direction: column !important;
        gap: 12px !important;
        margin-bottom: 18px !important;
    }

    .admin-dashboard-hero h1,
    .admin-page > .page-header h1 {
        font-size: 1.75rem !important;
        line-height: 1.15 !important;
    }

    .admin-dashboard-hero .pill-btn,
    .admin-page > .page-header .pill-btn {
        width: 100% !important;
    }

    .admin-metric-grid,
    .admin-dashboard-grid,
    .admin-chart-grid,
    .admin-funnel-grid {
        grid-template-columns: 1fr !important;
        gap: 12px !important;
    }

    .admin-metric-card,
    .admin-action-card,
    .admin-funnel-card,
    .admin-health-card {
        border-radius: var(--mobile-radius) !important;
    }

    .admin-content table.table tbody tr {
        padding: 14px !important;
        border-radius: var(--mobile-radius) !important;
    }

    .admin-content table.table td {
        align-items: flex-start !important;
        text-align: right !important;
    }

    .admin-content table.table td > * {
        flex: 1;
        min-width: 0;
    }

    .inline-status {
        min-width: auto !important;
        min-height: var(--mobile-tap) !important;
    }

}

@media (min-width: 769px) {
    .mobile-nav-preferences {
        display: none !important;
    }
}