/* =========================================
           1. CSS VARIABLES ENGINE
           ========================================= */
        :root {
            --primary-rgb: 0, 122, 255;
            --bg-rgb: 242, 242, 247;
            --card-rgb: 255, 255, 255;
            --text-rgb: 0, 0, 0;
            --accent-rgb: 88, 86, 214;
            
            --primary: rgb(var(--primary-rgb));
            --bg-base: rgb(var(--bg-rgb));
            
            --glass-bg: rgb(var(--card-rgb));
            --glass-border: rgba(var(--text-rgb), 0.08);
            --glass-blur: 0px;
            --glass-shadow: 0px 4px 12px rgba(0,0,0,0.05);
            --glass-saturate: 100%;
            /* specific glass background for the search bar to ensure visible blur */
            --search-glass-bg: var(--card-solid-bg);
            
            --card-solid-bg: rgb(var(--card-rgb));
            
            --text-main: rgb(var(--text-rgb));
            --text-sec: rgba(var(--text-rgb), 0.6);
            --separator: rgba(var(--text-rgb), 0.12);
            
            --font-main: 'Inter', sans-serif;
            --base-size: 17px;
            --font-weight-normal: 400;
            --font-weight-bold: 600;
            
            --radius-md: 20px;
            --ease: cubic-bezier(0.25, 1, 0.5, 1);
            /* Minimal header height variables for coordinated movement */
            --minimal-header-height: 52px;
            --minimal-header-compact-height: 30px;
            
            /* iOS 26 Toggle Colors */
            --toggle-on-bg: #34C759;
            --toggle-off-bg: rgba(var(--text-rgb), 0.16);
            --toggle-knob: #FFFFFF;
            --toggle-shadow: 0 3px 8px rgba(0,0,0,0.15), 0 1px 3px rgba(0,0,0,0.12);
            --toggle-inner-shadow: inset 0 0 0 0.5px rgba(0,0,0,0.04);
            /* Nuovo Background specifico per la ricerca (vetro satinato) */
            --search-glass-bg: rgba(255, 255, 255, 0.45); 
            --search-glass-border: rgba(255, 255, 255, 0.3);
            --search-blur: blur(15px) saturate(160%);
            --search-blur-premium: blur(25px) saturate(180%);
            /* dynamic search vertical offset (default for floating dynamic bar) */
            --dynamic-search-top: 100px;
            /* shared bottom offset for floating action buttons (chat, back-to-top) */
            --floating-action-bottom: 24px;
}

/* Variante Dark se attiva */
body.theme-dark {
    --search-glass-bg: rgba(40, 40, 42, 0.5);
    --search-glass-border: rgba(255, 255, 255, 0.1);
        }
        
        body.glass-active {
            --glass-bg: rgba(var(--card-rgb), 0.65);
            --glass-border: rgba(255, 255, 255, 0.5);
            --glass-blur: 40px;
            --glass-saturate: 180%;
            --glass-shadow: 0 8px 32px 0 rgba(31, 38, 135, 0.15);
            --search-glass-bg: rgba(var(--card-rgb), 0.82);
        }

        /* Reusable glass panel class: solid background by default, glass blur when active */
        .glass-panel {
            background: var(--card-solid-bg);
            border-radius: 12px;
            border: 1px solid transparent;
        }
        body.glass-active .glass-panel {
            background: var(--glass-bg);
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            box-shadow: var(--glass-shadow);
        }
        
        body.theme-dark.glass-active {
            --glass-bg: rgba(30, 30, 30, 0.65);
            --glass-border: rgba(255, 255, 255, 0.15);
            --search-glass-bg: rgba(28, 28, 30, 0.82);
        }
        
        body.theme-dark {
            --toggle-off-bg: rgba(255, 255, 255, 0.25);
        }
        
        /* Nav minimale con effetto glass blur */
        body.minimal-mode .ios-header {
            margin-top: 0px;
            background: rgba(var(--card-rgb), 0.6);
            backdrop-filter: blur(20px) saturate(180%);
            -webkit-backdrop-filter: blur(20px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.2);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
            border-radius: 0;
            width: 100%;
            z-index: -1
            
        }

        body.minimal-mode.scrolled .ios-header {
            margin-top: 0px;
            background: rgba(var(--card-rgb), 0.85);
            backdrop-filter: blur(30px) saturate(180%);
            -webkit-backdrop-filter: blur(30px) saturate(180%);
            border: 1px solid rgba(255, 255, 255, 0.3);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.12);
        }
        
        body.theme-dark.minimal-mode .ios-header {
            background: rgba(28, 28, 30, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.1);
        }
        
        body.theme-dark.minimal-mode.scrolled .ios-header {
            background: rgba(28, 28, 30, 0.85);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }

        /* Compact state while scrolling: shrink header into a small pill and hide controls */
        body.scroll-compact .ios-header {
            height: 44px;
            padding: 6px 12px;
            border-radius: 999px;
            width: fit-content;
            min-width: auto;
            left: 50%;
            transform: translateX(-50%);
            top: env(safe-area-inset-top, 12px);
            box-shadow: 0 6px 24px rgba(0,0,0,0.08);
            transition: all 0.25s var(--ease);
        }
        body.scroll-compact .ios-header .right-icons,
        body.scroll-compact .ios-header .nav-btn {
            display: none !important;
        }
        body.scroll-compact .ios-header .brand-center { display: block; font-weight:700; }
        body.scroll-compact .ios-header .ios-search { display: none !important; }

        /* Minimal-mode compact: thinner, more transparent glass, hide controls */
        body.minimal-mode.scroll-compact .ios-header {
            height: 40px;
            padding: 6px 10px;
            background: rgba(var(--card-rgb), 0.35);
            backdrop-filter: blur(40px) saturate(200%);
            -webkit-backdrop-filter: blur(40px) saturate(200%);
            border: 1px solid rgba(255,255,255,0.08);
            box-shadow: none;
            transition: all 0.25s var(--ease);
        }
        body.minimal-mode.scroll-compact .ios-header .right-icons,
        body.minimal-mode.scroll-compact .ios-header .nav-btn { display: none !important; }
        body.minimal-mode.scroll-compact .ios-header .brand-center { display: block; }
        body.minimal-mode.scroll-compact .ios-header .ios-search { display: none !important; }

        /* Make brand centered and header thinner in minimal compact */
        body.minimal-mode.scroll-compact .ios-header {
            height: 36px;
            padding: 4px 8px;
            /* full width attached to edges */
            width: 100%;
            left: 0;
            transform: none;
            border-radius: 0;
            top: 0;
        }
        body.minimal-mode.scroll-compact .ios-header .brand-center {
            margin: 0 auto;
            text-align: center;
            font-weight: 700;
            font-size: 0.95em;
        }

        /* Increase space between header and page content when compact */
        body.minimal-mode.scroll-compact .main-wrapper {
            padding-top: 96px; /* give extra space so content doesn't sit under header */
        }
        
        * { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
        
        body {
            font-family: var(--font-main);
            font-size: var(--base-size);
            color: var(--text-main);
            background-color: var(--bg-base);
            background-image: 
                radial-gradient(circle at 0% 0%, rgba(var(--primary-rgb), 0.15), transparent 50%),
                radial-gradient(circle at 100% 100%, rgba(var(--accent-rgb), 0.15), transparent 50%);
            background-attachment: fixed;
            background-size: cover;
            transition: background 0.4s, color 0.4s, font-size 0.3s;
            overflow-x: hidden;
            height: 100vh;
            font-weight: var(--font-weight-normal);
        }
        
        body.glass-active {
            background-image: 
                radial-gradient(at 0% 0%, rgba(var(--primary-rgb), 0.6) 0px, transparent 50%),
                radial-gradient(at 100% 0%, rgba(var(--accent-rgb), 0.6) 0px, transparent 50%),
                radial-gradient(at 100% 100%, rgba(var(--primary-rgb), 0.6) 0px, transparent 50%),
                radial-gradient(at 0% 100%, rgba(var(--accent-rgb), 0.6) 0px, transparent 50%),
                radial-gradient(at 50% 50%, rgba(var(--card-rgb), 0.1) 0px, transparent 50%);
        }
        
        .ios-touch { cursor: pointer; transition: transform 0.1s; }
        .ios-touch:active { transform: scale(0.96); opacity: 0.8; }
        .hidden { display: none !important; }
        
        .app-container { display: flex; height: 100vh; overflow: hidden; }
        
        /* SIDEBAR - Hidden on mobile */
        .sidebar {
            width: 280px;
            height: 100%;
            flex-shrink: 0;
            background-color: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border-right: 1px solid var(--glass-border);
            padding: 20px 16px;
            display: flex;
            flex-direction: column;
            z-index: 100;
            transition: transform 0.3s var(--ease), background 0.3s, border 0.3s;
        }
        
        @media (max-width: 1024px) {
            .sidebar {
                position: fixed;
                inset: 0 auto 0 0;
                transform: translateX(-100%);
                width: 85%;
                max-width: 320px;
                box-shadow: 5px 0 30px rgba(0,0,0,0.15);
                padding: max(env(safe-area-inset-top), 20px) 16px max(env(safe-area-inset-bottom), 20px) max(env(safe-area-inset-left), 16px);
            }
            .sidebar.active {
                transform: translateX(0);
            }
        }
        
        .brand-area { display: flex; align-items: center; gap: 12px; margin-bottom: 30px; padding: 0 8px; }
        .brand-logo { width:36px; height:36px; border-radius:10px; display:flex; align-items:center; justify-content:center; color:white; background: linear-gradient(135deg, var(--primary), rgb(var(--accent-rgb))); font-size:1.2em; box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.3); }
        .brand-title { font-size: 1.3em; font-weight: var(--font-weight-bold); letter-spacing: -0.5px; }
        
        .nav-item {
            display: flex; align-items: center; gap: 14px; padding: 12px 14px; margin-bottom: 4px;
            border-radius: 16px; color: var(--text-main); font-weight: var(--font-weight-normal);
            transition: 0.2s;
            min-height: 48px;
            cursor: pointer;
        }
        .nav-item:hover { background-color: rgba(var(--text-rgb), 0.05); }
        .nav-item.active { 
            background-color: rgba(var(--primary-rgb), 0.15);
            color: var(--primary); 
            font-weight: var(--font-weight-bold);
            backdrop-filter: blur(5px);
        }
        .nav-item i { font-size: 1.4em; }
        
        .menu-label { font-size: 0.9em; font-weight: var(--font-weight-bold); color: var(--text-sec); text-transform: uppercase; margin: 28px 0 12px 16px; letter-spacing: 0.6px; opacity: 0.9; }
        .badge { background: #FF3B30; color: white; font-size: 0.75em; padding: 2px 8px; border-radius: 12px; margin-left: auto; display: none; font-weight: 600; box-shadow: 0 2px 5px rgba(255, 59, 48, 0.4); }
        
        /* MAIN */
        .main-wrapper { 
            flex: 1; 
            height: 100%; 
            overflow-y: auto; 
            padding: 90px 40px 40px 40px; /* increased breathing space */
            position: relative; 
            scroll-behavior: smooth; 
            -webkit-overflow-scrolling: touch; 
        }
        
        /* Mobile padding for bottom bar */
        @media (max-width: 768px) {
            .main-wrapper {
                padding-bottom: 120px; /* give more room above bottom bar */
            }
        }
        
        /* Dynamic Bar */
        .ios-header {
            position: fixed;
            margin-top: 10px;
            top: 16px;
            height: auto;
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000;
            background-color: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border-radius: 150px;
            padding: 14px 20px; /* more padding for air */
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            box-shadow: var(--glass-shadow);
            border: 1px solid var(--glass-border);
            transition: all 0.3s var(--ease);
            width: fit-content;
            min-width: 300px;
            max-width: calc(100vw - 32px);
        }
        
        /* Hide top header on mobile when bottom bar is active */
        @media (max-width: 768px) {
            .ios-header {
                top: env(safe-area-inset-top, 40px);
            }
        }

        body.no-glass .ios-header {
            background-color: var(--card-solid-bg);
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            border: 1px solid var(--separator);
            box-shadow: 0 2px 12px rgba(0,0,0,0.08);
        }

        body.no-glass .sidebar,
        body.no-glass .right-sidebar {
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            background-color: var(--card-solid-bg);
            border-color: var(--separator);
        }

        body.no-glass .modal-scrim,
        body.no-glass .sidebar-scrim,
        body.no-glass .right-sidebar-scrim {
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            background: rgba(0,0,0,0.4);
        }

        body.no-glass .btn-secondary {
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            background: rgba(var(--text-rgb), 0.08);
        }

        /* When glass is disabled, make minimal header, its search and minimal panels fully solid
           to match the dynamic bar appearance */
        body.no-glass.minimal-mode .ios-header,
        body.no-glass .minimal-side-panel,
        body.no-glass .minimal-side-panel.active,
        body.no-glass .ios-header .ios-search,
        body.no-glass.minimal-mode .ios-header .ios-search {
            background: var(--card-solid-bg) !important;
            backdrop-filter: none !important;
            -webkit-backdrop-filter: none !important;
            border: 1px solid var(--separator) !important;
            box-shadow: 0 2px 12px rgba(0,0,0,0.08) !important;
        }

        .brand-center {
            font-weight: 600;
            cursor: pointer;
            color: var(--text-main);
            flex-shrink: 0;
        }

        .ios-header .nav-btn {
            background: none;
            border: none;
            width: ;
            font-size: 1.2em;
            color: var(--text-main);
            cursor: pointer;
            padding: 13px;
            border-radius: 12px;
            transition: background 0.2s;
            display: flex;
            align-items: center;
            justify-content: center;
            min-width: ;
            min-height: 44px;
        }

        .ios-header .nav-btn:hover {
            background: rgba(var(--text-rgb), 0.08);
        }

        .ios-header .ios-search {
            display: flex;
            align-items: center;
            gap: 8px;
            background: rgba(var(--text-rgb), 0.06);
            border-radius: 12px;
            padding: 9px 11px;
            flex: 1;
            max-width: 200px;
            min-width: 120px;
        }

        .ios-header .ios-search i {
            color: var(--text-sec);
            font-size: 1em;
        }

        .ios-header .ios-search input {
            border: none;
            background: none;
            outline: none;
            color: var(--text-main);
            flex: 1;
            font-size: 16px;
            width: 100%;
        }

        /* Ensure search shows glass blur when glass mode is active or when given .glass-panel
           Also include minimal-mode when glass is active and when the .glass-panel class is used */
        body.glass-active .ios-header .ios-search,
        body.minimal-mode.glass-active .ios-header .ios-search,
        .ios-header .ios-search.glass-panel,
        body.minimal-mode .ios-header .ios-search.glass-panel {
            background: var(--search-glass-bg) !important;
            border: 1px solid var(--glass-border) !important;
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) !important;
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) !important;
            box-shadow: var(--glass-shadow) !important;
        }
        .nav-divider {
            height: 1px;
            background: var(--separator);
            margin: 10px 0;
        }

        /* Piano B: standalone search element to guarantee independent backdrop-filter */
        .ios-search-standalone {
            position: fixed;
            /* dynamic mode: placed below the navbar; value can be tuned */
            top: var(--dynamic-search-top, 78px);
            left: 50%;
            transform: translateX(-50%);
            z-index: 1000; /* sit below the header (1000) so menu buttons remain clickable */
            display: flex;
            align-items: center;
            gap: 12px;
            width: 240px;
            max-width: calc(100vw - 160px);
            height: 44px;
            padding: 0 16px;
            background: var(--search-glass-bg);
            backdrop-filter: var(--search-blur-premium);
            -webkit-backdrop-filter: var(--search-blur-premium);
            border: 1.5px solid var(--search-glass-border);
            border-radius: var(--radius-md);
            box-shadow: 0 8px 32px rgba(0,0,0,0.1);
            transition: all 0.4s cubic-bezier(0.25,1,0.5,1);
            pointer-events: auto;
        }
        .ios-search-standalone:focus-within {
            width: 300px;
            background: rgba(255,255,255,0.7);
            border-color: var(--primary);
            box-shadow: 0 12px 40px rgba(0,0,0,0.15);
        }
        .ios-search-standalone input {
            border: none;
            background: transparent;
            outline: none;
            width: 100%;
            font-size: 16px;
            color: var(--text-main);
        }

        /* Minimal-mode: search attached under the minimal navbar, full-width and squared */
        body.minimal-mode .ios-search-standalone {
            top: var(--minimal-header-height);
            left: 0;
            transform: none;
            width: 100vw;
            max-width: 100%;
            border-radius: 0;
            height: var(--minimal-header-height);
            padding: 0 16px;
            z-index: 1001; /* place below the minimal header (which is 1002) */
            box-shadow: none;
            transition: top 220ms var(--ease), height 220ms var(--ease), padding 220ms var(--ease);
        }

        /* During scrolling: dynamic bar hides, minimal bar thins */
        body.scroll-compact:not(.minimal-mode) .ios-search-standalone {
            opacity: 0;
            pointer-events: none;
            transform: translateX(-50%) translateY(-8px);
        }

        body.minimal-mode.scroll-compact .ios-search-standalone {
            top: var(--minimal-header-compact-height);
            height: var(--minimal-header-compact-height);
            padding: 0 12px;
            border-radius: 0;
        }

        .crono-id-widget {
            display: flex;
            align-items: center;
            gap: 12px;
            padding: 12px;
            background: rgba(var(--text-rgb), 0.04);
            border-radius: 12px;
            border: 1px solid var(--separator);
        }

        .crono-id-widget .avatar {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: var(--primary);
            color: white;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: bold;
        }

        .crono-id-widget .user-info {
            flex: 1;
        }

        .crono-id-widget .user-name {
            font-weight: 600;
        }

        .crono-id-widget .user-id {
            font-size: 0.9em;
            color: var(--text-sec);
        }

        .settings-section h4 {
            margin: 0 0 10px 0;
            font-size: 1.1em;
            font-weight: 600;
        }

        .toggle-item {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 8px 0;
        }

        /* =========================================
           iOS 26 STYLE TOGGLE SWITCH
           3D glass effect with shadows
           ========================================= */
        .ios26-toggle {
            position: relative;
            width: 51px;
            height: 31px;
            display: inline-block;
            cursor: pointer;
            -webkit-tap-highlight-color: transparent;
        }
        
        .ios26-toggle input {
            opacity: 0;
            width: 0;
            height: 0;
            position: absolute;
        }
        
        .ios26-toggle .toggle-track {
            position: absolute;
            inset: 0;
            background: var(--toggle-off-bg);
            border-radius: 31px;
            transition: background 0.3s cubic-bezier(0.4, 0, 0.2, 1);
            /* Glass inner effect */
            box-shadow: 
                inset 0 0 0 1px rgba(0, 0, 0, 0.04),
                inset 0 2px 4px rgba(0, 0, 0, 0.06);
        }
        
        .ios26-toggle input:checked + .toggle-track {
            background: var(--toggle-on-bg);
            box-shadow: 
                inset 0 0 0 1px rgba(0, 0, 0, 0.02),
                0 0 8px rgba(52, 199, 89, 0.3);
        }
        
        .ios26-toggle .toggle-knob {
            position: absolute;
            width: 27px;
            height: 27px;
            left: 2px;
            top: 2px;
            background: var(--toggle-knob);
            border-radius: 50%;
            transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s;
            /* 3D effect with multiple shadows */
            box-shadow: 
                0 3px 8px rgba(0, 0, 0, 0.15),
                0 1px 3px rgba(0, 0, 0, 0.12),
                0 0 0 0.5px rgba(0, 0, 0, 0.04);
            /* Glass highlight */
            background: linear-gradient(180deg, #FFFFFF 0%, #F5F5F5 100%);
        }
        
        .ios26-toggle .toggle-knob::after {
            content: '';
            position: absolute;
            top: 2px;
            left: 3px;
            right: 3px;
            height: 40%;
            background: linear-gradient(180deg, rgba(255,255,255,0.8) 0%, rgba(255,255,255,0) 100%);
            border-radius: 50% 50% 40% 40%;
        }
        
        .ios26-toggle input:checked + .toggle-track .toggle-knob {
            transform: translateX(20px);
            box-shadow: 
                0 3px 8px rgba(0, 0, 0, 0.15),
                0 1px 3px rgba(0, 0, 0, 0.12),
                0 0 0 0.5px rgba(0, 0, 0, 0.04),
                0 0 0 1px rgba(52, 199, 89, 0.1);
        }
        
        .ios26-toggle:active .toggle-knob {
            width: 31px;
        }
        
        .ios26-toggle input:checked:active + .toggle-track .toggle-knob {
            transform: translateX(16px);
        }

        .theme-grid h4 {
            margin: 10px 0 10px 0;
            font-size: 1.1em;
            font-weight: 600;
        }

        .theme-buttons {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 8px;
        }

        .theme-btn {
            padding: 10px;
            border: none;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            transition: 0.2s;
            min-height: 44px;
        }

        .theme-btn.light { background: #f2f2f7; color: #000; }
        .theme-btn.dark { background: #1c1c1e; color: #fff; }
        .theme-btn.gold { background: linear-gradient(45deg, #000, #ffd700); color: #fff; }
        .theme-btn.cyber { background: linear-gradient(45deg, #000, #ff00ff, #00ffff); color: #fff; }
        .theme-btn.rose { background: linear-gradient(45deg, #fff1f2, #fb7185); color: #881337; }
        .theme-btn.sunset { background: linear-gradient(45deg, #fff7ed, #ea580c); color: #431407; }
        .theme-btn.forest { background: linear-gradient(45deg, #022c22, #10b981); color: #ecfdf5; }
        .theme-btn.midnight { background: linear-gradient(45deg, #0f0f23, #6366f1); color: #e0e7ff; }
        .theme-btn.slate { background: linear-gradient(45deg, #f8fafc, #64748b); color: #0f172a; }
        .theme-btn.ocean { background: linear-gradient(45deg, #0f172a, #38bdf8); color: #f0f9ff; }
        .theme-btn.latte { background: linear-gradient(45deg, #fef7ed, #f97316); color: #9a3412; }
        .theme-btn.graphite { background: linear-gradient(45deg, #374151, #9ca3af); color: #f9fafb; }
        .theme-btn.desert { background: linear-gradient(45deg, #78350f, #fcd34d); color: #fef3c7; }
        .theme-btn.aurora { background: linear-gradient(45deg, #0c0a09, #00d4ff); color: #f5f5f4; }
        .theme-btn.solar { background: linear-gradient(45deg, #ffffff, #f59e0b); color: #0f172a; }
        .theme-btn.cherry { background: linear-gradient(45deg, #fff1f2, #dc2626); color: #be123c; }
        .theme-btn.highcontrast { background: linear-gradient(45deg, #000000, #ffffff); color: #000000; }

        .ios-header .right-icons {
            display: flex;
            align-items: center;
            gap: 4px;
        }

        .ios-header .cart-btn {
            position: relative;
        }

        .ios-header .badge {
            position: absolute;
            top: -2px;
            right: -2px;
            background: var(--primary);
            color: white;
            border-radius: 50%;
            width: 18px;
            height: 18px;
            font-size: 0.75em;
            display: none;
            align-items: center;
            justify-content: center;
            font-weight: 600;
        }

        .nav-backdrop {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: rgba(0, 0, 0, 0.5);
            z-index: 999;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.3s, visibility 0.3s;
        }

        .nav-backdrop.active {
            opacity: 1;
            visibility: visible;
        }

        /* =========================================
           MOBILE BOTTOM NAV BAR
           ========================================= */
        .mobile-bottom-bar {
            display: none;
            position: fixed;
            bottom: 0;
            left: 0;
            right: 0;
            background: var(--glass-bg);
            backdrop-filter: blur(40px) saturate(180%);
            -webkit-backdrop-filter: blur(40px) saturate(180%);
            border-top: 1px solid var(--glass-border);
            padding: 12px 12px calc(env(safe-area-inset-bottom, 12px) + 12px) 12px;
            z-index: 1000;
            box-shadow: 0 -6px 28px rgba(0, 0, 0, 0.08);
        }
        
        body.no-glass .mobile-bottom-bar {
            background: var(--card-solid-bg);
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
        }
        
        @media (max-width: 768px) {
            .mobile-bottom-bar {
                display: block;
            }
        }
        
        .bottom-bar-items {
            display: flex;
            justify-content: space-around;
            align-items: center;
            gap: 8px;
        }
        
        .bottom-bar-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            padding: 10px 14px;
            border-radius: 20px;
            cursor: pointer;
            transition: all 0.2s var(--ease);
            min-width: 68px;
            position: relative;
            color: var(--text-sec);
        }
        
        .bottom-bar-item i {
            font-size: 1.6em;
            margin-bottom: 4px;
            transition: transform 0.2s;
        }
        
        .bottom-bar-item span {
            font-size: 0.7em;
            font-weight: 500;
            opacity: 0.8;
        }
        
        .bottom-bar-item.active {
            color: var(--primary);
            background: rgba(var(--primary-rgb), 0.1);
        }
        
        .bottom-bar-item.active i {
            transform: scale(1.1);
        }
        
        .bottom-bar-item .bottom-badge {
            position: absolute;
            top: 2px;
            right: 8px;
            background: #FF3B30;
            color: white;
            font-size: 0.65em;
            padding: 2px 5px;
            border-radius: 10px;
            font-weight: 700;
            min-width: 16px;
            text-align: center;
            display: none;
        }

        /* Expanded menu con scrolling e stile vetro coerente */
        .expanded-menu {
            position: fixed;
            top: 80px;
            left: 50%;
            transform: translateX(-50%);
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border-radius: 140px;
            padding: 16px;
            box-shadow: var(--glass-shadow);
            border: 1px solid var(--glass-border);
            z-index: 1001;
            opacity: 0;
            visibility: hidden;
            transform: translateX(-50%) translateY(-10px);
            transition: all 0.3s var(--ease);
            width: calc(100vw - 32px);
            max-width: 380px;
            max-height: calc(100vh - 120px);
            overflow-y: auto;
            overscroll-behavior: contain;
        }
        
        .expanded-menu::-webkit-scrollbar {
            width: 6px;
        }
        
        .expanded-menu::-webkit-scrollbar-track {
            background: transparent;
        }
        
        .expanded-menu::-webkit-scrollbar-thumb {
            background: rgba(var(--text-rgb), 0.2);
            border-radius: 3px;
        }

        .expanded-menu.active {
            opacity: 1;
            visibility: visible;
            transform: translateX(-50%) translateY(0);
        }

        .expanded-menu .nav-item {
            padding: 12px 14px;
            border-radius: 12px;
            cursor: pointer;
            transition: background 0.2s;
            margin-bottom: 4px;
        }

        .expanded-menu .nav-item:hover {
            background: rgba(var(--text-rgb), 0.06);
        }

        .expanded-menu .nav-item:last-child {
            margin-bottom: 0;
        }
        
        body.no-glass .expanded-menu {
            background: var(--card-solid-bg);
            backdrop-filter: none;
            -webkit-backdrop-filter: none;
            border: 1px solid var(--separator);
            box-shadow: 0 4px 20px rgba(0,0,0,0.12);
        }

        .ios-header.expanded-left,
        .ios-header.expanded-right {
            border-radius: var(--radius-md);
            width: calc(100vw - 32px);
            max-width: 400px;
            max-height: calc(100vh - 80px);
            padding: 16px;
            flex-direction: column;
            gap: 12px;
            overflow-y: auto;
            overscroll-behavior: contain;
        }
        
        .ios-header.expanded-left::-webkit-scrollbar,
        .ios-header.expanded-right::-webkit-scrollbar {
            width: 6px;
        }
        
        .ios-header.expanded-left::-webkit-scrollbar-track,
        .ios-header.expanded-right::-webkit-scrollbar-track {
            background: transparent;
        }
        
        .ios-header.expanded-left::-webkit-scrollbar-thumb,
        .ios-header.expanded-right::-webkit-scrollbar-thumb {
            background: rgba(var(--text-rgb), 0.2);
            border-radius: 3px;
        }

        #expanded-content {
            display: none;
            flex-direction: column;
            gap: 6px;
            width: 100%;
        }

        .ios-header.expanded-left #expanded-content,
        .ios-header.expanded-right #expanded-content {
            display: flex;
        }

        /* Place the close button at the top-right of the expanded header */
        .ios-header.expanded-left .full-menu-close,
        .ios-header.expanded-right .full-menu-close {
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 1005;
            background: transparent;
            color: var(--text-main);
            border: none;
            width: 40px;
            height: 40px;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }
        /* Detached search panel inside expanded header */
        .ios-header.expanded-left .ios-search,
        .ios-header.expanded-right .ios-search {
            display: flex;
            width: calc(100% - 24px);
            margin: 8px 12px;
            padding: 10px 12px;
            box-sizing: border-box;
            align-items: center;
            gap: 8px;
            border-radius: var(--radius-md);
            background: var(--card-solid-bg);
            border: 1px solid var(--glass-border);
            box-shadow: var(--glass-shadow);
            z-index: 1004;
            justify-content: center;
        }
        body.glass-active .ios-header.expanded-left .ios-search,
        body.glass-active .ios-header.expanded-right .ios-search {
            background: var(--search-glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border: 1px solid var(--glass-border);
        }
        /* show the static nav close when header expanded */
        .ios-header.expanded-left .nav-static-close,
        .ios-header.expanded-right .nav-static-close {
            display: flex !important;
            position: absolute;
            top: 12px;
            right: 12px;
            z-index: 1006;
            background: transparent;
            border: none;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            cursor: pointer;
        }

        .mobile-menu-btn { display: none; font-size: 1.6em; color: var(--primary); background: none; border: none; padding: 8px; min-width: 44px; min-height: 44px; }
        @media (max-width: 1024px) { .mobile-menu-btn { display: flex; align-items: center; justify-content: center; } }

        /* FILTER CHIPS */
        .filter-scroll { display: flex; gap: 10px; overflow-x: auto; padding-bottom: 10px; margin-bottom: 20px; scrollbar-width: none; -webkit-overflow-scrolling: touch; }
        .filter-scroll::-webkit-scrollbar { display: none; }
        .ios-chip {
            padding: 10px 20px; background-color: var(--glass-bg); border-radius: 50px; font-size: 0.9em; font-weight: 600;
            box-shadow: var(--glass-shadow); white-space: nowrap; transition: 0.2s; 
            border: 1px solid var(--glass-border); color: var(--text-main);
            backdrop-filter: blur(var(--glass-blur));
            cursor: pointer;
            min-height: 44px;
            display: flex;
            align-items: center;
        }
        .ios-chip.active { 
            background-color: var(--text-main); color: var(--bg-base); border-color: transparent;
            box-shadow: 0 4px 12px rgba(var(--text-rgb), 0.3);
        }
        
        body.no-glass .ios-chip {
            background-color: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        /* BUTTONS */
        .ios-btn { width: 100%; padding: 16px; border-radius: 16px; font-size: 1em; font-weight: var(--font-weight-bold); cursor: pointer; border: none; transition: 0.2s; display: flex; justify-content: center; align-items: center; gap: 8px; min-height: 48px; }
        .btn-primary { background: var(--primary); color: white; box-shadow: 0 4px 15px rgba(var(--primary-rgb), 0.4); }
        .btn-primary:active { opacity: 0.8; transform: scale(0.98); }
        .btn-secondary { background: rgba(var(--text-rgb), 0.08); color: var(--text-main); backdrop-filter: blur(10px); }
        .btn-magic { background: linear-gradient(135deg, #FF2D55, #5856D6); color: white; box-shadow: 0 4px 15px rgba(255, 45, 85, 0.4); }
        .btn-text { background: transparent; color: var(--primary); box-shadow: none; font-size: 0.9em; margin-top: 10px; }
        
        /* SETTINGS & THEMES UI */
        .settings-group { 
            background: var(--glass-bg); border-radius: 20px; overflow: hidden; margin-bottom: 24px;
            box-shadow: var(--glass-shadow); border: 1px solid var(--glass-border);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
        }
        
        body.no-glass .settings-group {
            background: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        .settings-row { 
            display: flex; align-items: center; justify-content: space-between; padding: 18px 20px;
            border-bottom: 1px solid var(--glass-border); cursor: pointer; transition: background 0.2s;
            min-height: 60px;
        }
        .settings-row:last-child { border-bottom: none; }
        .settings-row:hover { background: rgba(var(--text-rgb), 0.05); }
        
        .theme-grid-container {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(90px, 1fr));
            gap: 12px;
            padding: 20px;
            max-height: none;
            overflow: visible;
        }
        
        @media (max-width: 768px) {
            .theme-grid-container {
                grid-template-columns: repeat(3, 1fr);
            }
        }
        
        .theme-circle {
            width: 60px; height: 60px; border-radius: 50%; cursor: pointer;
            display: flex; align-items: center; justify-content: center;
            margin: 0 auto 8px;
            border: 3px solid transparent;
            transition: 0.3s;
            box-shadow: 0 4px 10px rgba(0,0,0,0.15);
        }
        .theme-circle:hover { transform: scale(1.1); }
        .theme-circle.active { border-color: var(--primary); box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.3); }
        .theme-name { text-align: center; font-size: 0.8em; color: var(--text-sec); }
        
        /* LEGACY SWITCH TOGGLE (fallback) */
        .switch-toggle { position: relative; width: 52px; height: 32px; display: inline-block; }
        .switch-toggle input { opacity: 0; width: 0; height: 0; }
        .slider { position: absolute; inset: 0; background: rgba(var(--text-rgb), 0.2); border-radius: 34px; transition: 0.4s; cursor: pointer; }
        .slider:before { content: ''; position: absolute; width: 26px; height: 26px; left: 3px; bottom: 3px; background: white; border-radius: 50%; transition: 0.4s; box-shadow: 0 2px 5px rgba(0,0,0,0.2); }
        input:checked + .slider { background: var(--primary); }
        input:checked + .slider:before { transform: translateX(20px); }
        
        /* RIGHT SIDEBAR */
        .right-sidebar {
            position: fixed;
            top: 0;
            right: 0;
            bottom: 0;
            width: 320px;
            max-width: 85%;
            background-color: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border-left: 1px solid var(--glass-border);
            padding: 20px;
            z-index: 101;
            transform: translateX(100%);
            transition: transform 0.3s var(--ease);
            overflow-y: auto;
        }
        .right-sidebar.active { transform: translateX(0); }
        
        .sidebar-scrim, .right-sidebar-scrim {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(5px);
            z-index: 99;
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
        }
        .sidebar-scrim.active, .right-sidebar-scrim.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* MODAL */
        .modal-scrim {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(10px);
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
        }
        .modal-scrim.open { opacity: 1; visibility: visible; }
        .ios-modal {
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border: 1px solid var(--glass-border);
            border-radius: 28px;
            width: 100%;
            max-width: 420px;
            max-height: 90vh;
            overflow-y: auto;
            padding: 24px;
            box-shadow: 0 25px 50px rgba(0,0,0,0.25);
            transform: scale(0.9);
            transition: 0.3s var(--ease);
        }
        .modal-scrim.open .ios-modal { transform: scale(1); }
        
        body.no-glass .ios-modal {
            background: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        /* CHAT */
        .chat-btn-float {
            position: fixed;
            bottom: calc(env(safe-area-inset-bottom, 0px) + var(--floating-action-bottom));
            right: 24px;
            width: 60px;
            height: 60px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--primary), rgb(var(--accent-rgb)));
            color: white;
            border: none;
            font-size: 1.5em;
            cursor: pointer;
            box-shadow: 0 8px 25px rgba(var(--primary-rgb), 0.4);
            z-index: 999;
            transition: 0.3s;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .chat-btn-float:hover { transform: scale(1.1); }
        
        /* Hide float button on mobile with bottom bar */
        @media (max-width: 768px) {
            :root {
                --floating-action-bottom: 90px;
            }
        }
        
        .chat-interface {
            position: fixed;
            bottom: 100px;
            right: 24px;
            width: 380px;
            max-width: calc(100vw - 48px);
            height: 500px;
            max-height: calc(100vh - 150px);
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            border: 1px solid var(--glass-border);
            border-radius: 24px;
            overflow: hidden;
            display: flex;
            flex-direction: column;
            box-shadow: 0 20px 50px rgba(0,0,0,0.2);
            z-index: 1020;
            opacity: 0;
            visibility: hidden;
            transform: translateY(20px);
            transition: 0.3s var(--ease);
        }
        .chat-interface.open { opacity: 1; visibility: visible; transform: translateY(0); }
        
        body.no-glass .chat-interface {
            background: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        /* Chat a schermo intero SOLO su mobile */
        @media (max-width: 768px) {
            .chat-interface {
                bottom: 0;
                right: 0;
                left: 0;
                top: 0;
                width: 100%;
                max-width: 100%;
                height: 100%;
                max-height: 100%;
                border-radius: 0;
            }
            
            .chat-interface.open {
                transform: translateY(0);
            }
        }
        
        .chat-nav { display: flex; justify-content: space-between; align-items: center; padding: 16px 20px; border-bottom: 1px solid var(--glass-border); font-weight: 600; cursor: move; }
        .chat-messages { flex: 1; overflow-y: auto; padding: 20px; display: flex; flex-direction: column; gap: 12px; }
        
        .msg-bubble { max-width: 80%; padding: 12px 16px; border-radius: 20px; font-size: 0.95em; line-height: 1.5; margin-bottom: 10px; }
        .msg-ai { background-color: rgba(var(--text-rgb), 0.06); color: var(--text-main); align-self: flex-start; border-bottom-left-radius: 4px; backdrop-filter: blur(5px); }
        .msg-user { background: var(--primary); color: white; align-self: flex-end; border-bottom-right-radius: 4px; box-shadow: 0 4px 10px rgba(var(--primary-rgb), 0.3); }
        
        /* USER PROFILE CARD IN SETTINGS */
        .user-card-profile {
            display: flex; align-items: center; gap: 15px; padding: 20px;
        }
        .user-avatar {
            width: 60px; height: 60px; background: rgba(var(--text-rgb), 0.1); border-radius: 50%;
            display: flex; align-items: center; justify-content: center; font-size: 1.5em; color: var(--text-sec);
        }
        .new-badge { position: absolute; top: 10px; left: 10px; background: #FF3B30; color: #fff; padding: 6px 8px; border-radius: 10px; font-weight:700; font-size:0.75em; z-index: 5; }
        .featured-badge { position: absolute; top: 10px; right: 10px; background: linear-gradient(135deg,#FFD66B,#FF7A7A); color: #111; padding: 6px 8px; border-radius: 10px; font-weight:700; font-size:0.9em; z-index: 5; }

        /* VIEWS */
        .view-section { display: none; animation: slideUp 0.4s var(--ease); }
        .view-section.active { display: block; }
        @keyframes slideUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
        
        /* AUTH STYLES */
        .auth-logo-area { display: flex; flex-direction: column; align-items: center; margin-bottom: 24px; }
        .auth-logo-icon { 
            width: 64px; height: 64px; border-radius: 18px;
            background: linear-gradient(135deg, var(--primary), rgb(var(--accent-rgb)));
            color: white; display: flex; align-items: center; justify-content: center;
            font-size: 32px; box-shadow: 0 10px 20px rgba(var(--primary-rgb), 0.3);
            margin-bottom: 16px;
        }
        
        .auth-input-group { position: relative; width: 100%; margin-bottom: 12px; }
        .auth-input {
            width: 100%; padding: 16px; border-radius: 12px; border: 1px solid var(--separator);
            background: rgba(var(--text-rgb), 0.02); color: var(--text-main); font-size: 16px; outline: none; transition: 0.3s;
        }
        .auth-input:focus { border-color: var(--primary); background: var(--glass-bg); box-shadow: 0 0 0 4px rgba(var(--primary-rgb), 0.1); }
        
        .password-section {
            max-height: 0; overflow: hidden; opacity: 0; transition: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
        }
        .password-section.open { max-height: 100px; opacity: 1; margin-top: 12px; }
        
        /* CARDS & GRID */
        .hero-card {
            background-color: var(--glass-bg); border-radius: var(--radius-md); overflow: hidden;
            margin-bottom: 24px; box-shadow: var(--glass-shadow); position: relative; height: 320px;
            border: 1px solid var(--glass-border);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
        }
        
        body.no-glass .hero-card {
            background-color: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        .hero-overlay {
            position: absolute; inset: 0;
            background: linear-gradient(to top, rgba(0,0,0,0.8), transparent 60%);
            padding: 40px; color: white; display: flex; flex-direction: column; justify-content: flex-end; align-items: flex-start;
        }
        
        .grid-layout { display: grid; grid-template-columns: repeat(auto-fill, minmax(200px, 1fr)); gap: 28px; }
        
        @media (max-width: 1024px) {
            .grid-layout { grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: 24px; }
        }
        
        @media (max-width: 768px) {
            .grid-layout {
                grid-template-columns: repeat(2, 1fr);
                gap: 20px;
            }
        }
        
        @media (max-width: 480px) {
            .grid-layout {
                grid-template-columns: repeat(2, 1fr);
                gap: 14px;
            }
        }
        
        .product-card {
            background-color: var(--card-solid-bg);
            border-radius: var(--radius-md); 
            overflow: hidden;
            box-shadow: 0 2px 8px rgba(0,0,0,0.06);
            display: flex; 
            flex-direction: column; 
            cursor: pointer;
            border: 1px solid var(--separator);
            transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1), box-shadow 0.3s;
            position: relative;
        }
        
        .product-card:hover { 
            transform: translateY(-6px) scale(1.02); 
            z-index: 10;
            box-shadow: 0 12px 24px rgba(0,0,0,0.12);
        }
        
        .product-img-wrap { padding-top: 100%; position: relative; background-color: rgba(var(--text-rgb), 0.03); }
        .product-img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: contain; padding: 28px; transition: transform 0.3s; }
        .product-card:hover .product-img { transform: scale(1.06); }
        .product-details { padding: 20px; }
        .product-name { font-size: 1.02em; font-weight: var(--font-weight-bold); margin-bottom: 10px; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; height: 2.8em; }
        .product-price { color: var(--primary); font-weight: var(--font-weight-bold); font-size: 1.15em; }

        .section-title { font-size: 1.6em; font-weight: var(--font-weight-bold); margin: 40px 0 24px 0; letter-spacing: 0.2px; }
        
        /* UI Backdrop */
        .ui-backdrop {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            z-index: 998;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s;
        }
        .ui-backdrop.active {
            opacity: 1;
            visibility: visible;
        }

        /* Back-to-top button */
        .back-to-top {
            position: fixed;
            left: 14px;
            bottom: calc(env(safe-area-inset-bottom, 0px) + var(--floating-action-bottom));
            width: 52px;
            height: 52px;
            border-radius: 999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            background: #34C759;
            color: white;
            box-shadow: 0 8px 24px rgba(0,0,0,0.18), 0 0 24px rgba(52,199,89,0.28);
            border: none;
            cursor: pointer;
            opacity: 0;
            visibility: hidden;
            transform: translateY(8px) scale(0.98);
            transition: all 240ms cubic-bezier(0.2,0.8,0.2,1);
            z-index: 1100;
        }
        .back-to-top.visible {
            opacity: 1;
            visibility: visible;
            transform: translateY(0) scale(1);
        }
        .back-to-top i { font-size: 1.15em; }

        /* ACCESSIBILITY CLASSES */
        body.show-borders * {
            border: 1px solid red !important;
        }

        body.bold-text {
            font-weight: 600;
        }

        body.saturated-colors {
            filter: saturate(150%);
        }

        body.grayscale {
            filter: grayscale(100%);
        }

        body.reduce-motion * {
            animation-duration: 0.01ms !important;
            animation-iteration-count: 1 !important;
            transition-duration: 0.01ms !important;
        }

        body.high-contrast {
            filter: contrast(150%);
        }
        
        /* Menu a schermo intero SOLO per mobile, slide panel per desktop */
        .full-menu-overlay {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: var(--glass-bg);
            backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
            z-index: 2000;
            opacity: 0;
            visibility: hidden;
            transition: all 0.3s var(--ease);
            overflow-y: auto;
            padding: 20px;
            padding-top: max(env(safe-area-inset-top), 20px);
        }
        
        .full-menu-overlay.active {
            opacity: 1;
            visibility: visible;
        }
        
        @media (min-width: 769px) {
            .full-menu-overlay {
                width: 380px;
                max-width: 380px;
                right: auto;
                transform: translateX(-100%);
                opacity: 1;
                visibility: hidden;
                border-right: 1px solid var(--glass-border);
                box-shadow: 5px 0 30px rgba(0,0,0,0.15);
            }
            
            .full-menu-overlay.active {
                transform: translateX(0);
                visibility: visible;
            }
        }
        
        body.no-glass .full-menu-overlay {
            background: var(--card-solid-bg);
            backdrop-filter: none;
        }
        
        .full-menu-header {
            display: flex;
            justify-content: space-between;
            align-items: center;
            margin-bottom: 24px;
            padding-bottom: 16px;
            border-bottom: 1px solid var(--separator);
        }
        
        .full-menu-header h2 {
            font-size: 1.4em;
            font-weight: 700;
        }
        
        .full-menu-close {
            width: 40px;
            height: 40px;
            border-radius: 50%;
            background: rgba(var(--text-rgb), 0.1);
            border: none;
            display: flex;
            align-items: center;
            justify-content: center;
            cursor: pointer;
            font-size: 1.2em;
            color: var(--text-main);
            min-width: 44px;
            min-height: 44px;
        }
        
        .full-menu-section {
            margin-bottom: 24px;
        }
        
        .full-menu-section h4 {
            font-size: 0.85em;
            text-transform: uppercase;
            color: var(--text-sec);
            margin-bottom: 12px;
            letter-spacing: 0.5px;
        }
        
        .full-menu-item {
            display: flex;
            align-items: center;
            gap: 14px;
            padding: 14px 16px;
            border-radius: 14px;
            margin-bottom: 6px;
            cursor: pointer;
            transition: background 0.2s;
            font-weight: 500;
            min-height: 48px;
        }
        
        .full-menu-item:hover {
            background: rgba(var(--text-rgb), 0.06);
        }
        
        .full-menu-item i {
            font-size: 1.3em;
            width: 28px;
            text-align: center;
        }
        
        .full-menu-toggle {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 12px 16px;
            border-radius: 14px;
            margin-bottom: 6px;
            background: rgba(var(--text-rgb), 0.03);
            min-height: 52px;
        }
        
        .full-menu-themes {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 12px;
        }
        
        .full-menu-theme-item {
            display: flex;
            flex-direction: column;
            align-items: center;
            cursor: pointer;
            padding: 8px;
            border-radius: 12px;
            transition: 0.2s;
        }
        
        .full-menu-theme-item:hover {
            background: rgba(var(--text-rgb), 0.06);
        }
        
        .full-menu-theme-circle {
            width: 44px;
            height: 44px;
            border-radius: 50%;
            margin-bottom: 6px;
            box-shadow: 0 2px 8px rgba(0,0,0,0.15);
            border: 2px solid transparent;
            transition: 0.2s;
        }
        
        .full-menu-theme-circle.active {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(var(--primary-rgb), 0.3);
        }
        
        .full-menu-theme-name {
            font-size: 0.7em;
            color: var(--text-sec);
            text-align: center;
        }

        .full-menu-scrim {
            position: fixed;
            inset: 0;
            background: rgba(0,0,0,0.5);
            backdrop-filter: blur(5px);
            z-index: 1999;
            opacity: 0;
            visibility: hidden;
            transition: 0.3s;
        }
        
        .full-menu-scrim.active {
            opacity: 1;
            visibility: visible;
        }
        
        /* =========================================
           MODE SELECTOR - Compact, Focus, Dynamic
           ========================================= */
        .mode-selector {
            display: flex;
            gap: 8px;
            padding: 4px;
            background: rgba(var(--text-rgb), 0.06);
            border-radius: 14px;
            margin-bottom: 16px;
        }
        
        .mode-btn {
            flex: 1;
            padding: 10px 12px;
            border: none;
            border-radius: 10px;
            font-size: 0.85em;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.2s;
            background: transparent;
            color: var(--text-sec);
            min-height: 44px;
        }
        
        .mode-btn.active {
            background: var(--card-solid-bg);
            color: var(--text-main);
            box-shadow: 0 2px 8px rgba(0,0,0,0.1);
        }
        
        .mode-btn:hover:not(.active) {
            background: rgba(var(--text-rgb), 0.04);
        }
        
        /* Compact Mode - Denser UI */
        body.compact-mode .product-card {
            border-radius: 12px;
        }
        
        body.compact-mode .product-details {
            padding: 10px;
        }
        
        body.compact-mode .section-title {
            font-size: 1.2em;
            margin: 20px 0 14px 0;
        }
        
        body.compact-mode .settings-row {
            padding: 12px 16px;
            min-height: 50px;
        }
        
        /* Focus Mode - Larger touch targets, cleaner UI */
        body.focus-mode .product-card {
            border-radius: 24px;
        }
        
        body.focus-mode .product-details {
            padding: 20px;
        }
        
        body.focus-mode .product-name {
            font-size: 1.1em;
        }
        
        body.focus-mode .nav-item {
            padding: 16px 18px;
            min-height: 56px;
        }
        
        body.focus-mode .ios-btn {
            padding: 18px;
            min-height: 54px;
            font-size: 1.05em;
        }
            /* Minimal-mode header: full width, touching screen edges (thinner) */
            body.minimal-mode .ios-header {
                top: 0;
                left: 0;
                right: 0;
                transform: none;
                border-radius: 0;
                padding: 6px 12px;
                width: 100vw;
                max-width: 100%;
                min-width: 0;
                justify-content: space-between;
                z-index: 1002;
            }

            /* Reduce main top padding when header is docked (use variable) */
            body.minimal-mode .main-wrapper { padding-top: var(--minimal-header-height); }

            /* Minimal side panels sliding from screen borders */
            .minimal-side-panel {
                position: fixed;
                top: 0;
                bottom: 0;
                width: 320px;
                max-width: 85%;
                background: var(--glass-bg);
                backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
                -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-sature));
                box-shadow: 5px 0 30px rgba(0,0,0,0.15);
                border: 1px solid var(--glass-border);
                z-index: 1001;
                transform: translateX(-100%);
                transition: transform 0.35s var(--ease), opacity 0.25s;
                overflow-y: auto;
                padding: max(env(safe-area-inset-top), 64px) 16px 20px 16px;
            }

            .minimal-side-panel.right {
                right: 0;
                left: auto;
                transform: translateX(100%);
                box-shadow: -5px 0 30px rgba(0,0,0,0.15);
            }

            .minimal-side-panel.left { left: 0; }

            .minimal-side-panel.active { transform: translateX(0); opacity: 1; }

            /* When in minimal-mode, ensure side panels render above the header/navbar */
            body.minimal-mode .minimal-side-panel,
            body.minimal-mode .minimal-side-panel.active {
                z-index: 1006; /* higher than .ios-header (1002) and expanded elements */
            }

            @media (max-width: 1024px) {
                .minimal-side-panel { width: 85%; }
                body.minimal-mode .main-wrapper { padding-top: calc(env(safe-area-inset-top, 0px) + var(--minimal-header-height)); }
            }

            /* Narrow / thin screens: show search bar below the navbar as an expansion */
            @media (max-width: 420px) {
                .ios-header {
                    /* center header and expand to near-full width on very narrow screens */
                    left: 50%;
                    transform: translateX(-50%);
                    width: calc(100vw - 32px);
                    max-width: calc(100vw - 32px);
                    position: fixed;
                }
                .ios-header .ios-search {
                    display: flex;
                    position: absolute;
                    top: 115%;
                    left: 50%;
                    transform: translateX(-50%);
                    width: calc(100% - 0px);
                    max-width: calc(100% - 0px);
                    padding: 8px 12px;
                    gap: 8px;
                    align-items: center;
                    border-bottom-left-radius: 12px;
                    border-bottom-right-radius: 12px;
                    border-top-left-radius: 12px;
                    border-top-right-radius: 12px;
                    background: var(--card-solid-bg);
                    box-shadow: var(--glass-shadow);
                    z-index: 1003;
                    pointer-events: auto;
                    box-sizing: border-box;
                }
                .ios-header .ios-search input { width: 100%; }

                /* If glass effect active, make search inherit glass styling */
                body.glass-active .ios-header .ios-search {
                    background: var(--search-glass-bg) !important;
                    backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) !important;
                    -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate)) !important;
                    border: 1px solid var(--glass-border) !important;
                }
                /* Increase top padding so content sits below the divided search panel */
                .main-wrapper { padding-top: 170px; }
                /* On phone, when minimal-mode active, give extra space so attached search doesn't overlap content */
                body.minimal-mode .main-wrapper {
                    padding-top: calc(var(--minimal-header-height) + 80px);
                }
            }

            /* Make search attach to navbar in minimal-mode and be full-width */
            body.minimal-mode .ios-header {
                position: fixed;
            }
            body.minimal-mode .ios-header .ios-search {
                position: absolute;
                top: 100%;
                left: 50%;
                transform: translateX(-50%);
                width: calc(100% - 0px);
                box-sizing: border-box;
                padding: 6px 12px;
                gap: 6px;
                align-items: center;
                border-radius: 0; /* squared */
                background: var(--card-solid-bg);
                box-shadow: var(--glass-shadow);
                z-index: 1003;
                overflow: hidden;
                display: flex;
                justify-content: center;
            }
            body.minimal-mode .ios-header .ios-search input { width: 100%; border-radius: 6px; font-size: 15px; }

            /* glass styling when both minimal-mode and glass-active */
            body.minimal-mode.body.glass-active .ios-header .ios-search,
            body.glass-active body.minimal-mode .ios-header .ios-search {
                background: var(--search-glass-bg);
                backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
                -webkit-backdrop-filter: blur(var(--glass-blur)) saturate(var(--glass-saturate));
                border: 1px solid var(--glass-border);
            }

            /* Ensure close button is visible when header is expanded (including in minimal-mode) */
            .ios-header.expanded-left .full-menu-close,
            .ios-header.expanded-right .full-menu-close {
                display: flex;
                visibility: visible;
                opacity: 1;
            }
             /* Style per input color premium */
input[type="color"] {
    -webkit-appearance: none;
    border: none;
    width: 44px;
    height: 30px;
    border-radius: 6px;
    cursor: pointer;
    background: none;
}

input[type="color"]::-webkit-color-swatch-wrapper {
    padding: 0;
}

input[type="color"]::-webkit-color-swatch {
    border: 2px solid var(--glass-border);
    border-radius: 6px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Evidenzia i temi custom nella griglia */
.theme-circle i {
    opacity: 0.6;
}

/* Animazione per l'apertura Theme Studio */
#themeCreatorOverlay.active {
    animation: slideInFromRight 0.4s var(--ease);
}

@keyframes slideInFromRight {
    from { transform: translateX(100%); }
    to { transform: translateX(0); }
}