/* =============================================
   PROFESSIONAL RESPONSIVE — ALL DEVICES
   Breakpoints: 1200 | 1024 | 768 | 480 | 360
   ============================================= */

/* =============================================
   GLOBAL: Mobile Slide-in Sidebar
   Always defined globally, not inside a media query.
   The trigger button controls visibility via .active class.
   ============================================= */

.mobile-sidebar-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.75);
    backdrop-filter: blur(6px);
    z-index: 2000;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease, visibility 0.3s ease;
}
.mobile-sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

.mobile-sidebar {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100%;
    background: #050810;
    border-left: 1px solid rgba(11, 190, 214, 0.2);
    z-index: 2001;
    overflow-y: auto;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    display: flex;
    flex-direction: column;
    box-shadow: -10px 0 40px rgba(0, 0, 0, 0.6);
}
.mobile-sidebar.active {
    right: 0;
}

.mobile-sidebar-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.25rem 1.5rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.mobile-sidebar-header .logo-text {
    font-size: 1rem;
    font-weight: 800;
}
.mobile-sidebar-header .icon-btn {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: 8px;
    color: #fff;
    font-size: 1.1rem;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s;
}
.mobile-sidebar-header .icon-btn:hover {
    background: rgba(239, 68, 68, 0.2);
    border-color: #ef4444;
    color: #ef4444;
}

.mobile-sidebar-content {
    flex: 1;
    padding: 1rem 0;
    overflow-y: auto;
}
.mobile-nav-links {
    display: flex;
    flex-direction: column;
}
.mobile-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1rem 1.5rem;
    color: rgba(255, 255, 255, 0.8);
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    transition: all 0.2s;
}
.mobile-link:hover,
.mobile-link:active {
    color: #0bbed6;
    background: rgba(11, 190, 214, 0.07);
    padding-left: 1.75rem;
}
.mobile-link i {
    font-size: 0.7rem;
    opacity: 0.4;
    color: #0bbed6;
}

.mobile-sidebar-footer {
    padding: 1.25rem 1.5rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

/* Mobile trigger button — hidden on desktop, shown on mobile via media query below */
.mobile-trigger {
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: rgba(11, 190, 214, 0.1);
    border: 1px solid rgba(11, 190, 214, 0.25);
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s;
    padding: 0;
    display: none; /* shown by media query */
}
.mobile-trigger:hover {
    background: rgba(11, 190, 214, 0.2);
}


/* =============================================
   NAVBAR — TABLET (769px–1024px)
   ============================================= */
@media (max-width: 1024px) {
    /* Show hamburger, hide desktop nav and Client Portal button */
    .mobile-trigger { display: flex !important; }
    .hide-mobile { display: none !important; }
    /* Hide Client Portal & Account icon from NAV on mobile — sidebar handles auth */
    #authGuest, #authLogged { display: none !important; }
    /* Hide desktop nav links and search bar */
    .header-center { display: none !important; }
    .integrated-search { display: none !important; }
    .action-divider { display: none !important; }
    .auth-action.hide-mobile { display: none !important; }

    /* Show burger menu */
    .mobile-trigger { display: flex !important; }

    /* Header layout */
    .nav-container {
        height: 75px;
        padding: 0 1.5rem;
    }
    .header-left {
        flex: 1;
        min-width: unset;
    }
    .header-right {
        flex: 0 0 auto;
        min-width: unset;
    }
    .interaction-group {
        gap: 0.75rem;
        justify-content: flex-end;
    }
    .utility-actions {
        gap: 0.5rem;
    }
}

/* =============================================
   NAVBAR — MOBILE (≤768px)
   ============================================= */
@media (max-width: 768px) {
    /* Header */
    .nav-container {
        height: 68px;
        padding: 0 1rem;
    }
    .header-left {
        flex: 1;
        min-width: unset;
    }
    .header-right {
        flex: 0 0 auto;
        min-width: unset;
    }
    .interaction-group {
        gap: 0.5rem;
        justify-content: flex-end;
        width: auto;
    }
    .utility-actions {
        gap: 0.4rem;
    }
    /* On mobile: hide BOTH auth buttons from the NAV BAR.
       The mobile sidebar (#mobileAuthGuest / #mobileAuthLogged) handles auth instead. */
    #authGuest,
    #authLogged { display: none !important; }
    /* User dropdown auto-repositions on mobile */
    .user-portal-dropdown {
        right: -1rem !important;
        left: auto !important;
        max-width: calc(100vw - 2rem);
    }
    /* Language portal auto-repositions */
    .lang-portal {
        right: 0;
        left: auto;
        width: min(280px, calc(100vw - 2rem));
    }

    /* body/layout */
    body { font-size: 15px; }
    .container { padding: 0 1rem; }
    .section { padding: 3rem 0; }

    /* Hero */
    .hero { min-height: 80vh; padding: 6rem 1rem 3rem; text-align: center; }
    .hero h1 { font-size: 2.2rem; line-height: 1.2; }
    .hero p { font-size: 1rem; }
    .hero-actions { flex-direction: column; gap: 0.75rem; width: 100%; }
    .hero-actions .btn { width: 100%; text-align: center; justify-content: center; }
    .hero-stats { flex-wrap: wrap; gap: 1rem; justify-content: center; }

    /* Products */
    .products-grid { grid-template-columns: 1fr; gap: 1.25rem; }

    /* Calculator */
    .calculator-master-grid { grid-template-columns: 1fr; padding: 0 1rem; }
    .calc-grid { grid-template-columns: 1fr; }
    .calc-info-col { display: none; }

    /* Stats */
    .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 1rem; }
    .stat-card { padding: 1.5rem 1rem; }
    .stat-number { font-size: 2rem; }

    /* Footer */
    .footer { padding: 2.5rem 0 1rem; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.5rem; text-align: center; }
    .footer-bottom { flex-direction: column; gap: 0.75rem; text-align: center; }
    .payment-icons { justify-content: center; }

    /* Modals — centered on all screens, no bottom-sheet */
    .modal-overlay {
        align-items: center !important;
        justify-content: center !important;
        padding: 0.75rem !important;
    }
    .modal-content {
        position: relative !important;
        bottom: auto !important;
        left: auto !important;
        margin: auto !important;
        width: calc(100% - 1.5rem) !important;
        max-width: 100% !important;
        padding: 1.5rem 1.25rem !important;
        border-radius: 1.25rem !important;
        max-height: 92vh !important;
        overflow-y: auto !important;
        transform: none !important;
    }

    /* Age Verification Modal — always dead-center */
    #ageModal.modal-overlay {
        align-items: center !important;
        justify-content: center !important;
        padding: 1rem !important;
    }
    #ageModal .modal-content {
        position: relative !important;
        bottom: auto !important;
        left: auto !important;
        border-radius: 1.5rem !important;
        margin: auto !important;
        max-width: 400px !important;
        width: calc(100% - 2rem) !important;
        padding: 2rem 1.5rem !important;
    }
    /* Age modal buttons — always stacked & full text visible */
    #ageModalButtons {
        display: flex !important;
        flex-direction: column !important;
        gap: 0.875rem !important;
        width: 100% !important;
    }
    #ageModalButtons button {
        width: 100% !important;
        white-space: normal !important;
        line-height: 1.4 !important;
        letter-spacing: 0 !important;
        padding: 0.875rem 1rem !important;
        min-height: auto !important;
    }

    /* Cart Sidebar */
    .cart-sidebar { width: 100%; right: -100%; }

    /* Section headings */
    .section-header h2 { font-size: 1.9rem; }

    /* Back to top */
    .back-to-top { bottom: 5rem; right: 1rem; }


    /* Glass inputs — prevent iOS auto-zoom */
    .glass-input { font-size: 16px !important; }

    /* Testimonials */
    .testimonial-slide { padding: 1.5rem; }

    /* Footer */
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
}

/* =============================================
   NAVBAR — SMALL MOBILE (≤480px)
   ============================================= */
@media (max-width: 480px) {
    /* Header */
    .nav-container {
        height: 64px;
        padding: 0 0.75rem;
    }
    /* Logo: keep icon + text but slightly smaller */
    .logo-icon-wrapper {
        width: 34px !important;
        height: 34px !important;
        min-width: 34px !important;
    }
    .logo-text {
        font-size: 0.8rem !important;
        letter-spacing: 0.05em !important;
    }
    /* Utility buttons slightly smaller */
    .utility-btn, .mobile-trigger {
        width: 36px !important;
        height: 36px !important;
        min-width: 36px !important;
        font-size: 0.9rem !important;
    }
    /* Hide "EN" label to save space */
    .lang-current { display: none !important; }

    /* Cart badge */
    .cart-count-badge {
        width: 14px !important;
        height: 14px !important;
        font-size: 0.55rem !important;
        top: -3px !important;
        right: -3px !important;
    }

    /* Utility spacing */
    .utility-actions { gap: 0.3rem !important; }
    .interaction-group { gap: 0.4rem !important; }

    /* Content */
    .hero h1 { font-size: 1.8rem; }
    .products-grid { grid-template-columns: 1fr; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .product-image-wrapper { height: 180px; }
    .auth-tabs { gap: 0; }
    .auth-tab { font-size: 0.875rem; padding: 0.75rem; }
    .section-header h2 { font-size: 1.6rem; }
    .testimonial-slide { padding: 1rem; }

    /* Full-width sidebar on small phones — still slides in correctly */
    .mobile-sidebar { width: 100% !important; }
    .mobile-sidebar { right: -100% !important; }
    .mobile-sidebar.active { right: 0 !important; }
}

/* =============================================
   NAVBAR — VERY SMALL (≤360px)
   ============================================= */
@media (max-width: 360px) {
    .nav-container {
        height: 60px;
        padding: 0 0.5rem;
    }
    /* At this extreme, hide logo text, keep icon only */
    .logo-text { display: none !important; }
    .logo-icon-wrapper {
        width: 32px !important;
        height: 32px !important;
        min-width: 32px !important;
    }
    .utility-btn, .mobile-trigger {
        width: 32px !important;
        height: 32px !important;
        font-size: 0.8rem !important;
        border-radius: 6px !important;
    }
    .utility-actions { gap: 0.2rem !important; }
    .interaction-group { gap: 0.25rem !important; }
    .cart-count-badge {
        width: 12px !important;
        height: 12px !important;
        font-size: 0.5rem !important;
        top: -2px !important;
        right: -2px !important;
    }
}

/* =============================================
   TABLET GRID ADJUSTMENTS (769–1024px)
   ============================================= */
@media (min-width: 769px) and (max-width: 1024px) {
    .products-grid { grid-template-columns: repeat(2, 1fr); }
    .calculator-master-grid { grid-template-columns: 1fr; gap: 2rem; }
    .footer-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* =============================================
   MOBILE SIDEBAR BUTTON TEXT FIT
   Ensure "Client Portal — Sign In" never clips
   ============================================= */
.mobile-sidebar-footer .btn {
    white-space: normal;
    word-break: break-word;
    letter-spacing: 0.03em;
    font-size: 0.85rem;
    padding: 0.9rem 1rem;
    text-align: center;
    line-height: 1.3;
}