/* =========================================================
   NEXA SHOP - Comprehensive Mobile & Responsive Fixes
   Addresses: Notch / Safe Area / Sticky Header / Overflow
   ========================================================= */

/* 1. Global Reset & Touch Behavior */
* {
    touch-action: manipulation;
    -webkit-tap-highlight-color: transparent;
    box-sizing: border-box;
}

/* 2. Prevent iOS/Android Auto-Zoom on Input Focus */
@media screen and (max-width: 768px) {
    input, select, textarea, .swal2-input, .swal2-select, .swal2-textarea {
        font-size: 16px !important;
    }
}

/* 3. Universal Sticky Mobile Header with Safe-Area Insets (Client App) */
.app-mobile-nav {
    position: sticky !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 50 !important;
    flex-shrink: 0 !important;
    background-color: #ffffff !important;
    border-bottom: 1px solid #f1f5f9 !important;
    /* Safe Area Top for iPhone Notch / Dynamic Island / Status Bar */
    padding-top: max(0.875rem, calc(env(safe-area-inset-top, 0px) + 0.625rem)) !important;
    padding-bottom: 0.75rem !important;
    padding-left: max(1rem, calc(env(safe-area-inset-left, 0px) + 0.75rem)) !important;
    padding-right: max(1rem, calc(env(safe-area-inset-right, 0px) + 0.75rem)) !important;
    box-shadow: 0 1px 3px 0 rgba(15, 23, 42, 0.05) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    backdrop-filter: blur(12px) !important;
}

/* Admin Mobile Header */
.admin-mobile-nav {
    position: sticky !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 50 !important;
    flex-shrink: 0 !important;
    background-color: #0f172a !important; /* slate-900 */
    border-bottom: 1px solid #1e293b !important;
    padding-top: max(0.875rem, calc(env(safe-area-inset-top, 0px) + 0.625rem)) !important;
    padding-bottom: 0.75rem !important;
    padding-left: max(1rem, calc(env(safe-area-inset-left, 0px) + 0.75rem)) !important;
    padding-right: max(1rem, calc(env(safe-area-inset-right, 0px) + 0.75rem)) !important;
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    backdrop-filter: blur(12px) !important;
}

/* Ensure desktop hides mobile nav completely */
@media (min-width: 1024px) {
    .app-mobile-nav.lg\:hidden {
        display: none !important;
    }
}
@media (min-width: 768px) {
    .admin-mobile-nav.md\:hidden {
        display: none !important;
    }
}

/* 4. Landing Page (index.php) Header */
.landing-header {
    position: sticky !important;
    top: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    z-index: 50 !important;
    background-color: rgba(255, 255, 255, 0.92) !important;
    -webkit-backdrop-filter: blur(12px) !important;
    backdrop-filter: blur(12px) !important;
    border-bottom: 1px solid #f1f5f9 !important;
    padding-top: max(0.625rem, calc(env(safe-area-inset-top, 0px) + 0.375rem)) !important;
    padding-bottom: 0.625rem !important;
    padding-left: max(1rem, env(safe-area-inset-left, 0px)) !important;
    padding-right: max(1rem, env(safe-area-inset-right, 0px)) !important;
}

/* 5. Mobile App Shell Viewport & Scroll Containment (Client: < 1024px) */
@media (max-width: 1024px) {
    html:has(body.app-shell) {
        height: 100% !important;
        overflow: hidden !important;
        overscroll-behavior: none !important;
    }
    
    body.app-shell {
        height: 100% !important;
        height: 100dvh !important;
        min-height: -webkit-fill-available !important;
        max-height: 100dvh !important;
        overflow: hidden !important;
        display: flex !important;
        flex-direction: column !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        overscroll-behavior: none !important;
    }
    
    body.app-shell > main {
        flex: 1 1 0% !important;
        min-height: 0 !important; /* CRITICAL: Enables flex child to shrink and scroll properly */
        height: auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        overscroll-behavior-y: contain !important;
        padding-top: 1.25rem !important;
        padding-bottom: calc(env(safe-area-inset-bottom, 24px) + 7rem) !important;
        padding-left: max(1rem, calc(env(safe-area-inset-left, 0px) + 0.5rem)) !important;
        padding-right: max(1rem, calc(env(safe-area-inset-right, 0px) + 0.5rem)) !important;
    }

    /* Modal dialogs responsiveness on mobile */
    #detailModal > div, #buyModal > div, #profileModal > div {
        max-height: 86dvh !important;
    }
    #detailModal .overflow-y-auto, #buyModal .overflow-y-auto, #profileModal .overflow-y-auto {
        padding-bottom: calc(env(safe-area-inset-bottom, 20px) + 4rem) !important;
        -webkit-overflow-scrolling: touch !important;
    }
}

/* 6. Admin App Shell Viewport & Scroll Containment (Admin: < 768px) */
@media (max-width: 767px) {
    html:has(body.admin-shell) {
        height: 100% !important;
        overflow: hidden !important;
        overscroll-behavior: none !important;
    }
    
    body.admin-shell {
        height: 100% !important;
        height: 100dvh !important;
        min-height: -webkit-fill-available !important;
        max-height: 100dvh !important;
        overflow: hidden !important;
        display: flex !important;
        flex-direction: column !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        right: 0 !important;
        bottom: 0 !important;
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        overscroll-behavior: none !important;
    }
    
    body.admin-shell > main {
        flex: 1 1 0% !important;
        min-height: 0 !important;
        height: auto !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
        overscroll-behavior-y: contain !important;
        padding-top: 1.25rem !important;
        padding-bottom: calc(env(safe-area-inset-bottom, 24px) + 7rem) !important;
        padding-left: max(1rem, calc(env(safe-area-inset-left, 0px) + 0.5rem)) !important;
        padding-right: max(1rem, calc(env(safe-area-inset-right, 0px) + 0.5rem)) !important;
    }
}

/* 7. Landing & Login Page Normal Scrolling */
body.landing-page {
    height: auto !important;
    min-height: 100vh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    position: static !important;
}

body.login-page {
    height: auto !important;
    min-height: 100vh !important;
    min-height: 100dvh !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    position: static !important;
    padding-top: max(1.5rem, calc(env(safe-area-inset-top, 0px) + 1rem)) !important;
    padding-bottom: max(1.5rem, calc(env(safe-area-inset-bottom, 0px) + 1rem)) !important;
}