/* ==========================================================================
   CRONOTOOLS DESIGN SYSTEM - V7.0 (PRISMA UPDATE)
   ========================================================================== */

/* INDICE CONTENUTI:
   1.  CORE VARIABLES & FONTS
   2.  THEME DEFINITIONS (REMASTERED ENGINE)
   3.  RESET & GLOBAL LAYOUT
   4.  NAVBAR LOGIC (DYNAMIC & LEGACY)
   5.  SIDEBAR & MENU STRUCTURE
   6.  HOME PAGE & TYPOGRAPHY
   7.  TOOLS GRID SYSTEM
   8.  UI COMPONENTS (INPUTS, BUTTONS, TOGGLES)
   9.  UPLOAD AREA & WORKSPACE
   10. ANIMATION ENGINE
   11. ACCESSIBILITY OVERRIDES
   12. MEDIA QUERIES
*/

/* =========================================
   1. CORE VARIABLES & FONTS
   ========================================= */

:root { 
    /* --- METRICHE & FONT (Ready for Multi-lang) --- */
    --font-stack: "SF Pro Display", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    --font-mono: "SF Mono", "Fira Code", Consolas, monospace;
    
    --radius-sm: 12px; 
    --radius-md: 18px; 
    --radius-lg: 26px; 
    --radius-xl: 38px;
    --radius-pill: 999px;
    
    /* Dynamic Bar Defaults (Possono essere sovrascritti da JS) */
    --bar-width: 94%;
    --bar-height: 64px;
    
    /* --- ANIMAZIONI BASE --- */
    --ease-elastic: cubic-bezier(0.5, 1.8, 0.5, 0.8);
    --ease-smooth: cubic-bezier(0.32, 0.72, 0, 1);
    --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
    
    /* --- COLORI BASE (Semantic Fallback) --- */
    --danger: #ff453a;
    --success: #32d74b;
    --warning: #ffd60a;
}

/* =========================================
   2. THEME DEFINITIONS (REMASTERED)
   ========================================= */

/* --- THEME: LIGHT (Standard) --- */
:root {
    --bg-body: #f2f2f7;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f9f9fb;
    --bg-input: #eef1f6;
    
    /* Glass Layers - Calibrated Opacity */
    --bg-glass: rgba(255, 255, 255, 0.65);
    --bg-glass-heavy: rgba(255, 255, 255, 0.85);
    --bg-overlay: rgba(0, 0, 0, 0.2);

    --text-primary: #1c1c1e;
    --text-secondary: rgba(60, 60, 67, 0.75);
    --text-tertiary: rgba(60, 60, 67, 0.45);

    --accent: #007aff;
    --accent-hover: #0063ce;
    --on-accent: #ffffff;
    --accent-dim: rgba(0, 122, 255, 0.1);
    --accent-gradient: linear-gradient(135deg, #007aff, #00c6ff);

    --border-light: rgba(0, 0, 0, 0.08);
    --border-focus: rgba(0, 122, 255, 0.4);

    --shadow-sm: 0 2px 8px rgba(0,0,0,0.04);
    --shadow-md: 0 8px 24px rgba(0,0,0,0.06);
    --shadow-lg: 0 20px 48px rgba(0,0,0,0.1);
    --shadow-glow: 0 0 20px rgba(0, 122, 255, 0.15);

    --nav-bg: rgba(255, 255, 255, 0.8);
    --nav-border: rgba(255,255,255,0.5);
    --nav-shadow: 0 8px 32px rgba(0,0,0,0.06);
    --nav-text: #1c1c1e;
}

/* --- THEME: DARK (Standard) --- */
[data-theme="dark"] {
    --bg-body: #000000;
    --bg-surface: #1c1c1e;
    --bg-surface-hover: #2c2c2e;
    --bg-input: #252527;
    
    --bg-glass: rgba(28, 28, 30, 0.65);
    --bg-glass-heavy: rgba(28, 28, 30, 0.85);
    --bg-overlay: rgba(0, 0, 0, 0.6);

    --text-primary: #ffffff;
    --text-secondary: #ebebf5;
    --text-tertiary: rgba(235, 235, 245, 0.4);

    --accent: #0a84ff;
    --accent-hover: #409cff;
    --on-accent: #ffffff;
    --accent-dim: rgba(10, 132, 255, 0.15);
    --accent-gradient: linear-gradient(135deg, #0a84ff, #5ac8fa);

    --border-light: rgba(255, 255, 255, 0.12);
    --shadow-sm: 0 4px 12px rgba(0,0,0,0.3);
    --shadow-md: 0 12px 30px rgba(0,0,0,0.4);
    --shadow-lg: 0 30px 60px rgba(0,0,0,0.6);
    --shadow-glow: 0 0 25px rgba(10, 132, 255, 0.2);

    --nav-bg: rgba(28, 28, 30, 0.8);
    --nav-border: rgba(255, 255, 255, 0.1);
    --nav-shadow: 0 10px 40px rgba(0,0,0,0.5);
    --nav-text: #ffffff;
}

/* --- THEME: GOLD (Premium/Mida) --- */
[data-theme="gold"] {
    --bg-body: #050503; /* Nero molto caldo */
    --bg-surface: #14120b;
    --bg-surface-hover: #1f1c12;
    --bg-input: #262216;
    
    --bg-glass: rgba(20, 18, 11, 0.7);
    --bg-glass-heavy: rgba(20, 18, 11, 0.9);
    --bg-overlay: rgba(0, 0, 0, 0.8);
    
    --text-primary: #f5e6c8;
    --text-secondary: #d4c5a3;
    --text-tertiary: #8f846a;
    
    /* Premium Gradients */
    --accent: #d4af37;
    --accent-hover: #f1d374;
    --on-accent: #000000;
    --accent-dim: rgba(212, 175, 55, 0.15);
    --accent-gradient: linear-gradient(135deg, #bf953f 0%, #fcf6ba 40%, #b38728 70%, #fbf5b7 100%);
    
    --border-light: rgba(212, 175, 55, 0.25);
    --border-focus: rgba(212, 175, 55, 0.6);
    
    --shadow-glow: 0 0 35px rgba(212, 175, 55, 0.25);
    --nav-bg: rgba(20, 18, 11, 0.85);
    --nav-border: rgba(212, 175, 55, 0.3);
    --nav-text: #d4af37;
    --nav-shadow: 0 0 30px rgba(212, 175, 55, 0.1);
}

/* --- THEME: CILIEGIA (New - Cherry Red) --- */
[data-theme="ciliegia"] {
    --bg-body: #1a0507;
    --bg-surface: #2b0b0e;
    --bg-surface-hover: #381014;
    --bg-input: #45151a;
    
    --bg-glass: rgba(43, 11, 14, 0.7);
    --bg-glass-heavy: rgba(43, 11, 14, 0.9);
    
    --text-primary: #ffebec;
    --text-secondary: #ffb3b8;
    --text-tertiary: #995c61;
    
    --accent: #ff2d55;
    --accent-hover: #ff5c7c;
    --on-accent: #ffffff;
    --accent-dim: rgba(255, 45, 85, 0.2);
    --accent-gradient: linear-gradient(135deg, #ff2d55, #ff3b30);
    
    --border-light: rgba(255, 45, 85, 0.3);
    --nav-bg: rgba(43, 11, 14, 0.8);
    --nav-border: rgba(255, 45, 85, 0.3);
    --nav-text: #ffebec;
}

/* --- THEME: LAVANDA (New - Pastel Purple) --- */
[data-theme="lavanda"] {
    --bg-body: #f7f6fc;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f0edfa;
    --bg-input: #e6e1f5;
    
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-heavy: rgba(255, 255, 255, 0.9);
    
    --text-primary: #3a3052;
    --text-secondary: #6e638a;
    --text-tertiary: #9d96b3;
    
    --accent: #af52de;
    --accent-hover: #bf73e6;
    --on-accent: #ffffff;
    --accent-dim: rgba(175, 82, 222, 0.12);
    --accent-gradient: linear-gradient(135deg, #af52de, #5856d6);
    
    --border-light: rgba(175, 82, 222, 0.15);
    --nav-bg: rgba(255, 255, 255, 0.85);
    --nav-border: rgba(175, 82, 222, 0.2);
    --nav-text: #3a3052;
}

/* --- THEME: NORDIC (New - Ice Blue) --- */
[data-theme="nordic"] {
    --bg-body: #f0f4f8;
    --bg-surface: #ffffff;
    --bg-surface-hover: #e6eef5;
    --bg-input: #dae4ed;
    
    --bg-glass: rgba(255, 255, 255, 0.7);
    --bg-glass-heavy: rgba(255, 255, 255, 0.9);
    
    --text-primary: #2c3e50;
    --text-secondary: #5d738a;
    --text-tertiary: #8fa0b3;
    
    --accent: #5ac8fa;
    --accent-hover: #7cd5fc;
    --on-accent: #ffffff;
    --accent-dim: rgba(90, 200, 250, 0.15);
    --accent-gradient: linear-gradient(135deg, #5ac8fa, #007aff);
    
    --border-light: rgba(90, 200, 250, 0.2);
    --nav-bg: rgba(255, 255, 255, 0.85);
    --nav-border: rgba(90, 200, 250, 0.3);
    --nav-text: #2c3e50;
}

/* --- THEME: LATTE (Refined - Warm) --- */
[data-theme="latte"] {
    --bg-body: #fdf6e3; /* Solarized Light Base */
    --bg-surface: #fffef8;
    --bg-surface-hover: #f5efdc;
    --bg-input: #eee8d5;
    
    --bg-glass: rgba(255, 254, 248, 0.7);
    --bg-glass-heavy: rgba(255, 254, 248, 0.9);
    
    --text-primary: #5c4f3b; /* Warm Dark Brown */
    --text-secondary: #87775d;
    --text-tertiary: #b0a38e;
    
    --accent: #d33682; /* Magenta/Pink warm pop */
    --accent-hover: #e64e98;
    --on-accent: #ffffff;
    --accent-dim: rgba(211, 54, 130, 0.1);
    --accent-gradient: linear-gradient(135deg, #d33682, #b58900);
    
    --border-light: rgba(92, 79, 59, 0.15);
    --nav-bg: rgba(255, 254, 248, 0.85);
    --nav-text: #5c4f3b;
    --nav-border: rgba(92, 79, 59, 0.1);
}

/* --- THEME: CYBER (Neon) --- */
[data-theme="cyber"] {
    --bg-body: #050505;
    --bg-surface: #0a0a12;
    --bg-surface-hover: #14141f;
    --bg-input: #1a1a2e;
    --bg-glass: rgba(10, 10, 18, 0.75);
    --bg-glass-heavy: rgba(10, 10, 18, 0.92);
    
    --text-primary: #ffffff;
    --text-secondary: #00f3ff;
    --text-tertiary: #ff0099;
    
    --accent: #ff0099;
    --accent-hover: #ff5cba;
    --on-accent: #ffffff;
    --accent-dim: rgba(255, 0, 153, 0.2);
    --accent-gradient: linear-gradient(135deg, #ff0099, #00f3ff);
    
    --border-light: rgba(0, 243, 255, 0.3);
    --shadow-glow: 0 0 30px rgba(255, 0, 153, 0.3);
    
    --nav-bg: rgba(10, 10, 18, 0.85);
    --nav-border: #00f3ff;
    --nav-text: #ffffff;
    --nav-shadow: 0 0 25px rgba(0, 243, 255, 0.2);
}

/* --- THEME: MIDNIGHT --- */
[data-theme="midnight"] {
    --bg-body: #000000;
    --bg-surface: #0f0f12;
    --bg-surface-hover: #18181f;
    --bg-input: #1f1f26;
    --bg-glass: rgba(15, 15, 18, 0.7);
    --bg-glass-heavy: rgba(15, 15, 18, 0.9);
    
    --text-primary: #ffffff;
    --text-secondary: #94949e;
    --text-tertiary: #5e5e66;
    
    --accent: #5e5ce6; /* Indigo */
    --accent-hover: #7d7aff;
    --on-accent: #ffffff;
    --accent-dim: rgba(94, 92, 230, 0.2);
    --accent-gradient: linear-gradient(135deg, #5e5ce6, #bf5af2);
    
    --border-light: #2c2c2e;
    --nav-bg: rgba(15, 15, 18, 0.8);
    --nav-border: rgba(255,255,255,0.1);
    --nav-text: #ffffff;
}

/* --- THEME: SLATE --- */
[data-theme="slate"] {
    --bg-body: #1b262c;
    --bg-surface: #26333d;
    --bg-surface-hover: #324350;
    --bg-input: #3e505e;
    --bg-glass: rgba(38, 51, 61, 0.7);
    --bg-glass-heavy: rgba(38, 51, 61, 0.9);
    
    --text-primary: #dee4e7;
    --text-secondary: #aabcc6;
    --text-tertiary: #758a99;
    
    --accent: #64ffda;
    --accent-hover: #9effe8;
    --on-accent: #1b262c;
    --accent-dim: rgba(100, 255, 218, 0.15);
    --accent-gradient: linear-gradient(135deg, #64ffda, #4db6ac);
    
    --border-light: rgba(100, 255, 218, 0.2);
    --nav-bg: rgba(38, 51, 61, 0.8);
    --nav-border: rgba(100, 255, 218, 0.25);
    --nav-text: #dee4e7;
}

/* --- THEME: FOREST --- */
[data-theme="forest"] {
    --bg-body: #0d1a12;
    --bg-surface: #172e20;
    --bg-surface-hover: #203f2c;
    --bg-input: #295038;
    --bg-glass: rgba(23, 46, 32, 0.7);
    --bg-glass-heavy: rgba(23, 46, 32, 0.9);
    
    --text-primary: #e6f5eb;
    --text-secondary: #9ccdb0;
    --text-tertiary: #6a9b7e;
    
    --accent: #34c759;
    --accent-hover: #5ddf85;
    --on-accent: #000000;
    --accent-dim: rgba(52, 199, 89, 0.2);
    --accent-gradient: linear-gradient(135deg, #34c759, #30d158);
    
    --border-light: rgba(52, 199, 89, 0.3);
    --nav-bg: rgba(23, 46, 32, 0.8);
    --nav-border: rgba(52, 199, 89, 0.35);
    --nav-text: #e6f5eb;
}

/* --- THEME: SUNSET --- */
[data-theme="sunset"] {
    --bg-body: #240e10;
    --bg-surface: #3d171b;
    --bg-surface-hover: #521f24;
    --bg-input: #69282e;
    --bg-glass: rgba(61, 23, 27, 0.7);
    --bg-glass-heavy: rgba(61, 23, 27, 0.9);
    
    --text-primary: #ffe6e8;
    --text-secondary: #ffb3ba;
    --text-tertiary: #cc8088;
    
    --accent: #ff9f0a;
    --accent-hover: #ffb340;
    --on-accent: #240e10;
    --accent-dim: rgba(255, 159, 10, 0.2);
    --accent-gradient: linear-gradient(135deg, #ff9f0a, #ff375f);
    
    --border-light: rgba(255, 159, 10, 0.3);
    --nav-bg: rgba(61, 23, 27, 0.85);
    --nav-border: rgba(255, 159, 10, 0.35);
    --nav-text: #ffe6e8;
}

/* --- THEME: GRAPHITE --- */
[data-theme="graphite"] {
    --bg-body: #121212;
    --bg-surface: #1e1e1e;
    --bg-surface-hover: #2c2c2c;
    --bg-input: #333333;
    --bg-glass: rgba(30, 30, 30, 0.7);
    --bg-glass-heavy: rgba(30, 30, 30, 0.9);
    
    --text-primary: #e0e0e0;
    --text-secondary: #a0a0a0;
    --text-tertiary: #666666;
    
    --accent: #ffffff;
    --accent-hover: #dcdcdc;
    --on-accent: #000000;
    --accent-dim: rgba(255, 255, 255, 0.1);
    --accent-gradient: linear-gradient(135deg, #ffffff, #b3b3b3);
    
    --border-light: rgba(255, 255, 255, 0.15);
    --nav-bg: rgba(30, 30, 30, 0.8);
    --nav-border: rgba(255, 255, 255, 0.15);
    --nav-text: #e0e0e0;
}

/* --- THEME: HIGH CONTRAST (Accessibility) --- */
[data-theme="high-contrast"] {
    --bg-body: #ffffff;
    --bg-surface: #ffffff;
    --bg-surface-hover: #f0f0f0;
    --bg-input: #ffffff;
    --bg-glass: #ffffff;
    --bg-glass-heavy: #ffffff;
    --bg-overlay: rgba(0,0,0,0.9);
    
    --text-primary: #000000;
    --text-secondary: #000000;
    --text-tertiary: #000000;
    
    --accent: #0000aa;
    --accent-hover: #000055;
    --on-accent: #ffffff;
    --accent-dim: rgba(0, 0, 0, 0.1);
    --accent-gradient: none;
    
    --border-light: #000000;
    --border-focus: #000000;
    
    --shadow-sm: none;
    --shadow-md: none;
    --shadow-lg: none;
    --shadow-glow: none;
    
    --nav-bg: #ffffff;
    --nav-border: #000000;
    --nav-text: #000000;
    --nav-shadow: none;
}
[data-theme="high-contrast"] * { border: 2px solid #000000 !important; }

/* --- THEME: OCEAN --- */
[data-theme="ocean"] {
    --bg-body: #051923;
    --bg-surface: #003554;
    --bg-surface-hover: #00456e;
    --bg-input: #006494;
    --bg-glass: rgba(0, 53, 84, 0.7);
    --bg-glass-heavy: rgba(0, 53, 84, 0.9);
    --bg-overlay: rgba(5, 25, 35, 0.8);
    --text-primary: #e6faff;
    --text-secondary: #9bd7ea;
    --text-tertiary: #5c9ab0;
    --accent: #00a6fb;
    --accent-hover: #33bbff;
    --on-accent: #051923;
    --accent-dim: rgba(0, 166, 251, 0.2);
    --accent-gradient: linear-gradient(135deg, #00a6fb, #0582ca);
    --border-light: rgba(0, 166, 251, 0.3);
    --nav-bg: rgba(0, 53, 84, 0.85);
    --nav-border: rgba(0, 166, 251, 0.4);
    --nav-text: #e6faff;
}

/* --- THEME: CHERRY --- */
[data-theme="cherry"] {
    --bg-body: #1a0408;
    --bg-surface: #3a0a14;
    --bg-surface-hover: #4a0f1b;
    --bg-input: #5a1422;
    --bg-glass: rgba(58, 10, 20, 0.7);
    --bg-glass-heavy: rgba(58, 10, 20, 0.9);
    --bg-overlay: rgba(26, 4, 8, 0.85);
    --text-primary: #fff1f4;
    --text-secondary: #f2b8c6;
    --text-tertiary: #c77a8c;
    --accent: #e6396a;
    --accent-hover: #ff4f85;
    --on-accent: #1a0408;
    --accent-dim: rgba(230, 57, 106, 0.2);
    --accent-gradient: linear-gradient(135deg, #e6396a, #ff758f);
    --border-light: rgba(230, 57, 106, 0.35);
    --nav-bg: rgba(58, 10, 20, 0.85);
    --nav-border: rgba(230, 57, 106, 0.45);
    --nav-text: #fff1f4;
}

/* --- THEME: AURORA --- */
[data-theme="aurora"] {
    --bg-body: #040d12;
    --bg-surface: #071a24;
    --bg-surface-hover: #0a2433;
    --bg-input: #0e2f42;
    --bg-glass: rgba(7, 26, 36, 0.7);
    --bg-glass-heavy: rgba(7, 26, 36, 0.9);
    --bg-overlay: rgba(4, 13, 18, 0.85);
    --text-primary: #eaffff;
    --text-secondary: #b5f3ff;
    --text-tertiary: #6fbfd1;
    --accent: #4fd1c5;
    --accent-hover: #6beee0;
    --on-accent: #040d12;
    --accent-dim: rgba(79, 209, 197, 0.25);
    --accent-gradient: linear-gradient(135deg, #4fd1c5, #63b3ed);
    --border-light: rgba(79, 209, 197, 0.35);
    --nav-bg: rgba(7, 26, 36, 0.85);
    --nav-border: rgba(79, 209, 197, 0.45);
    --nav-text: #eaffff;
}

/* --- THEME: DESERT --- */
[data-theme="desert"] {
    --bg-body: #1a140b;
    --bg-surface: #2b2114;
    --bg-surface-hover: #3a2d1c;
    --bg-input: #4a3a24;
    --bg-glass: rgba(43, 33, 20, 0.7);
    --bg-glass-heavy: rgba(43, 33, 20, 0.9);
    --bg-overlay: rgba(26, 20, 11, 0.85);
    --text-primary: #fff6e5;
    --text-secondary: #e7cfa3;
    --text-tertiary: #b89b6b;
    --accent: #e0a84a;
    --accent-hover: #f0bb63;
    --on-accent: #1a140b;
    --accent-dim: rgba(224, 168, 74, 0.25);
    --accent-gradient: linear-gradient(135deg, #e0a84a, #ffcc80);
    --border-light: rgba(224, 168, 74, 0.35);
    --nav-bg: rgba(43, 33, 20, 0.85);
    --nav-border: rgba(224, 168, 74, 0.45);
    --nav-text: #fff6e5;
}
/* --- THEME: ROSE --- */
[data-theme="rose"] {
    /* Base: carta scura rosata, non nero */
    --bg-body: #141012;
    --bg-surface: #1f181c;
    --bg-surface-hover: #2a2126;
    --bg-input: #33272d;

    /* Glass: vellutato, quasi opaco */
    --bg-glass: rgba(42, 33, 38, 0.65);
    --bg-glass-heavy: rgba(42, 33, 38, 0.88);
    --bg-overlay: rgba(20, 16, 18, 0.9);

    /* Testi: carta avorio + rosé spento */
    --text-primary: #f4eaea;
    --text-secondary: #d6bfc3;
    --text-tertiary: #a88f94;

    /* Accento: rosé metallico, NON pink */
    --accent: #c48a97;
    --accent-hover: #d9a3af;
    --on-accent: #141012;

    /* Accento soft e gradient editoriale */
    --accent-dim: rgba(196, 138, 151, 0.18);
    --accent-gradient: linear-gradient(
        135deg,
        #c48a97,
        #e0b6bf,
        #b97986
    );

    /* Bordi sottilissimi, quasi invisibili */
    --border-light: rgba(196, 138, 151, 0.25);

    /* Navbar: inchiostro rosato */
    --nav-bg: rgba(31, 24, 28, 0.9);
    --nav-border: rgba(196, 138, 151, 0.35);
    --nav-text: #f4eaea;
}

/* --- THEME: SOLAR --- */
[data-theme="solar"] {
    --bg-body: #140800;
    --bg-surface: #2a1400;
    --bg-surface-hover: #3b1d00;
    --bg-input: #4d2600;
    --bg-glass: rgba(42, 20, 0, 0.7);
    --bg-glass-heavy: rgba(42, 20, 0, 0.9);
    --bg-overlay: rgba(20, 8, 0, 0.85);
    --text-primary: #fff3e0;
    --text-secondary: #ffd199;
    --text-tertiary: #d49b5c;
    --accent: #ff9800;
    --accent-hover: #ffb74d;
    --on-accent: #140800;
    --accent-dim: rgba(255, 152, 0, 0.25);
    --accent-gradient: linear-gradient(135deg, #ff9800, #ffc107);
    --border-light: rgba(255, 152, 0, 0.4);
    --nav-bg: rgba(42, 20, 0, 0.85);
    --nav-border: rgba(255, 152, 0, 0.5);
    --nav-text: #fff3e0;
}

/* =========================================
   3. RESET & GLOBAL LAYOUT
   ========================================= */

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; -webkit-tap-highlight-color: transparent; }

html { scroll-behavior: smooth; height: 100%; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }

body { 
    font-family: var(--font-stack); 
    background-color: var(--bg-body); 
    color: var(--text-primary); 
    padding-top: 130px; 
    padding-bottom: 90px;
    min-height: 100vh;
    overflow-x: hidden;
    display: flex; flex-direction: column; align-items: center;
    transition: background-color 0.4s var(--ease-smooth), color 0.4s var(--ease-smooth);
}

body.no-scroll { overflow: hidden; }

/* Wrapper Content con animazione di default */
.content-wrapper { 
    width: 100%;
    max-width: 1100px;
    padding: 0 24px;
    display: flex; flex-direction: column; align-items: center;
    position: relative; z-index: 10;
    opacity: 0; 
    animation: legacyFadeUp 0.8s var(--ease-smooth) forwards; 
}

h1, h2, h3, h4, h5 { font-weight: 700; line-height: 1.15; letter-spacing: -0.02em; margin-bottom: 0.6em; }
p { margin-bottom: 1.4em; line-height: 1.6; font-size: 1.05rem; }
a { color: var(--accent); text-decoration: none; transition: all 0.2s; font-weight: 500; }
a:hover { opacity: 0.7; }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 99px; border: 2px solid var(--bg-body); }
::-webkit-scrollbar-thumb:hover { background: var(--text-tertiary); }

/* =========================================
   4. NAVBAR LOGIC
   ========================================= */

#global-navbar { 
    position: fixed; top: 0; left: 0; right: 0; 
    z-index: 5000; display: flex; justify-content: center; 
    pointer-events: none; padding-top: 24px; 
    transition: all 0.5s var(--ease-elastic);
}

.nav-pill { 
    pointer-events: auto; 
    width: var(--bar-width); 
    max-width: 860px; 
    height: var(--bar-height); 
    background: var(--nav-bg); 
    border: 1px solid var(--nav-border); 
    border-radius: var(--radius-pill); 
    box-shadow: var(--nav-shadow); 
    color: var(--nav-text); 
    padding: 0 20px; 
    backdrop-filter: saturate(180%) blur(50px); 
    -webkit-backdrop-filter: saturate(180%) blur(50px); 
    transition: all 0.5s var(--ease-elastic);
    display: flex; flex-direction: column; overflow: hidden;
}

/* DYNAMIC BAR VARIANTS (Density & Content) */
#global-navbar.density-compact .nav-pill { height: 52px; padding: 0 16px; }
#global-navbar.density-extended .nav-pill { height: 78px; padding: 0 32px; border-radius: 28px; }

#global-navbar.content-text-only .nav-icon,
#global-navbar.content-text-only .logo-img { display: none !important; }
#global-navbar.content-text-only .nav-text, 
#global-navbar.content-text-only .nav-mini-logo { display: inline-block !important; }

#global-navbar.content-icons-only .nav-text,
#global-navbar.content-icons-only .nav-mini-logo { display: none !important; }
#global-navbar.content-icons-only .nav-icon { font-size: 22px; }

/* No Animation State */
#global-navbar.no-entry-anim { animation: none !important; transition: none !important; }
body.no-hover-anim .nav-btn:hover { transform: none !important; }

.nav-content-normal { width: 100%; height: 100%; display: flex; align-items: center; justify-content: space-between; transition: opacity 0.3s ease, transform 0.3s ease; }

/* Menu Dinamico Espanso */
.dynamic-menu-content {
    display: none; opacity: 0; width: 100%; padding: 10px 0 24px 0;
    transition: opacity 0.3s ease 0.2s;
}

/* Espansione */
#global-navbar.expanded { z-index: 6000; }
#global-navbar.expanded .nav-pill {
    width: 95% !important; max-width: 480px !important; height: auto !important;
    min-height: 350px; border-radius: 36px !important; padding: 28px;
    background: var(--bg-glass-heavy); border-color: var(--accent);
}

#global-navbar.expanded .dynamic-menu-content { display: block; opacity: 1; max-height: 70vh; overflow-y: auto; }
#global-navbar.expanded .nav-content-normal { opacity: 0; pointer-events: none; height: 0; overflow: hidden; transform: translateY(-20px); }

/* Elementi Menu Dinamico */
.dyn-menu-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 20px; padding-bottom: 15px; border-bottom: 1px solid var(--border-light); }
.dyn-menu-title { font-weight: 800; font-size: 22px; letter-spacing: -0.5px; }
.dyn-close-btn { 
    background: var(--bg-input); width: 40px; height: 40px; border-radius: 50%; border:none; 
    display:flex; align-items:center; justify-content:center; cursor:pointer; font-weight:bold; 
    transition: 0.2s; font-size: 18px; color: var(--text-primary);
}
.dyn-close-btn:hover { background: var(--bg-surface-hover); transform: rotate(90deg); color: var(--accent); }

.dyn-link {
    display: flex; align-items: center; gap: 16px; padding: 14px 18px; margin-bottom: 8px;
    background: transparent; border-radius: 16px;
    color: var(--text-primary); font-weight: 600; font-size: 16px;
    transition: all 0.2s var(--ease-smooth); border: 1px solid transparent;
}
.dyn-link:hover { background: var(--bg-surface-hover); transform: translateX(5px); border-color: var(--border-light); color: var(--accent); }
.dyn-link:active { transform: scale(0.98); }

/* Scrolled State Logic */
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .nav-pill { 
    width: auto; min-width: 150px; height: 52px; padding: 0 24px; 
    justify-content: center; background: var(--bg-surface); border-color: var(--border-light);
    box-shadow: var(--shadow-sm);
}
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .nav-btn,
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .nav-center-links,
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .auth-wrapper { display: none; opacity: 0; pointer-events: none; }
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .nav-mini-logo { display: flex; opacity: 1; transform: translateY(0); margin: 0; }
body:not(.old-design-mode) #global-navbar.scrolled:not(.expanded) .logo-img { display: none !important; }

/* Buttons & Logo */
.nav-btn { width: 48px; height: 48px; border-radius: 50%; border: none; background: transparent; color: inherit; display: flex; align-items: center; justify-content: center; cursor: pointer; transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1); }
.nav-btn:hover { background: var(--bg-surface-hover); transform: scale(1.1); color: var(--accent); }
.nav-mini-logo { display: none; font-weight: 800; font-size: 18px; opacity: 0; transform: translateY(10px); transition: 0.4s; }
.logo-img { height: 32px; width: auto; margin-right: 12px; }

/* Theme Specific Logo Logic */
.logo-light { display: block; } .logo-dark { display: none; }
[data-theme="dark"] .logo-light, [data-theme="gold"] .logo-light, [data-theme="cyber"] .logo-light, [data-theme="midnight"] .logo-light, [data-theme="ciliegia"] .logo-light, [data-theme="sunset"] .logo-light, [data-theme="forest"] .logo-light { display: none !important; }
[data-theme="dark"] .logo-dark, [data-theme="gold"] .logo-dark, [data-theme="cyber"] .logo-dark, [data-theme="midnight"] .logo-dark, [data-theme="ciliegia"] .logo-dark, [data-theme="sunset"] .logo-dark, [data-theme="forest"] .logo-dark { display: block !important; }

/* Minimal Mode Styles (Legacy) */
body.old-design-mode #global-navbar { padding: 0; background: transparent; backdrop-filter: none; border-bottom: 1px solid transparent; }
body.old-design-mode .nav-pill { width: 100%; max-width: 100%; border-radius: 0; border: none; background: transparent; box-shadow: none; height: 70px; padding: 0 30px; }
body.old-design-mode #global-navbar.scrolled { height: 40px; padding: 0; background: var(--nav-bg); backdrop-filter: blur(40px); border-bottom: 1px solid var(--border-light); }
body.old-design-mode #global-navbar.scrolled .nav-pill { height: 100%; padding: 0; justify-content: center; }

/* =========================================
   5. SIDEBAR & MENU STRUCTURE
   ========================================= */

.sidebar { 
    position: fixed; top: 0; bottom: 0; width: 340px; max-width: 85vw;
    background: var(--bg-glass-heavy); backdrop-filter: blur(40px); 
    z-index: 6000; 
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1), visibility 0.4s; 
    visibility: hidden; display: flex; flex-direction: column; border-right: 1px solid var(--border-light);
    overflow-y: auto;
}
.sidebar#sidebar-left { left: 0; transform: translateX(-100%); }
.sidebar#sidebar-right { right: 0; border-left: 1px solid var(--border-light); border-right: none; transform: translateX(100%); }

.sidebar.open, 
.sidebar#sidebar-left.open, 
.sidebar#sidebar-right.open { 
    transform: translateX(0); 
    visibility: visible; 
    box-shadow: 0 0 100px rgba(0,0,0,0.5); 
}

.sidebar-header { height: 90px; display: flex; align-items: center; justify-content: space-between; padding: 0 24px; border-bottom: 1px solid var(--border-light); }
.sidebar-title { font-weight: 800; font-size: 1.4rem; }

.menu-item { width: 100%; padding: 16px 20px; margin-bottom: 8px; background: transparent; border: 1px solid transparent; border-radius: 14px; color: var(--text-primary); font-size: 16px; font-weight: 600; text-align: left; cursor: pointer; transition: 0.2s; }
.menu-item:hover { background: var(--bg-input); border-color: var(--border-light); transform: translateX(4px); }
.backdrop { position: fixed; inset: 0; background: var(--bg-overlay); z-index: 5500; opacity: 0; pointer-events: none; transition: opacity 0.4s; backdrop-filter: blur(4px); }
.backdrop.active { opacity: 1; pointer-events: all; }

/* =========================================
   6. HOME PAGE & TYPOGRAPHY
   ========================================= */

.hero-section { width: 100%; padding: 80px 24px 50px; text-align: center; display: flex; flex-direction: column; align-items: center; margin-bottom: 30px; }
.hero-title { 
    font-size: clamp(3rem, 7vw, 5.5rem); 
    font-weight: 900; margin-bottom: 24px; 
    letter-spacing: -3px; line-height: 1;
    background: linear-gradient(135deg, var(--text-primary) 20%, var(--text-secondary) 100%); 
    -webkit-background-clip: text; -webkit-text-fill-color: transparent;
    filter: drop-shadow(0 4px 12px rgba(0,0,0,0.05));
    transition: transform 0.5s var(--ease-smooth);
}
/* Special Hero Handling for Themes */
[data-theme="cyber"] .hero-title,
[data-theme="gold"] .hero-title,
[data-theme="ciliegia"] .hero-title,
[data-theme="latte"] .hero-title { 
    background: var(--accent-gradient); 
    -webkit-background-clip: text; 
    filter: drop-shadow(0 4px 15px var(--accent-dim)); 
}

.hero-subtitle { font-size: clamp(1.2rem, 3vw, 1.6rem); color: var(--text-secondary); margin-bottom: 50px; max-width: 700px; font-weight: 500; opacity: 0.9; }

/* =========================================
   7. TOOLS GRID SYSTEM
   ========================================= */

.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 24px; width: 100%; max-width: 1040px; margin: 20px auto 0; }

.tool-card { 
    display: flex; flex-direction: column; align-items: center; justify-content: center; 
    background: var(--bg-surface); 
    border: 1px solid var(--border-light); 
    border-radius: var(--radius-lg); 
    padding: 32px 18px; 
    text-align: center; 
    transition: all 0.4s var(--ease-smooth); 
    position: relative; overflow: hidden; height: 180px;
    box-shadow: var(--shadow-sm);
    cursor: pointer;
}

/* Gradient Overlay on Hover */
.tool-card::before {
    content: ''; position: absolute; inset: 0;
    background: linear-gradient(135deg, var(--bg-surface) 0%, var(--bg-surface-hover) 100%);
    opacity: 0; transition: opacity 0.4s; z-index: 0;
}
.tool-card:hover::before { opacity: 1; }

.tool-card svg, .tool-card .tool-name { position: relative; z-index: 1; }

.tool-card:hover { 
    transform: translateY(-10px) scale(1.03); 
    box-shadow: var(--shadow-md); 
    border-color: transparent; 
}
/* Focus Ring simulation */
.tool-card:hover::after {
    content: ''; position: absolute; inset: 0; border-radius: var(--radius-lg);
    padding: 2px; background: var(--accent-gradient); 
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor; mask-composite: exclude;
    z-index: 2; pointer-events: none; opacity: 0.8;
}

.tool-card svg { width: 48px; height: 48px; margin-bottom: 18px; color: var(--text-secondary); transition: 0.4s var(--ease-elastic); }
.tool-card:hover svg { transform: scale(1.2) rotate(-5deg); color: var(--accent); filter: drop-shadow(0 8px 16px var(--accent-dim)); }
.tool-name { font-size: 16px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.01em; }

/* =========================================
   8. UI COMPONENTS (INPUTS, BUTTONS, TOGGLES)
   ========================================= */

.glass-card { 
    background: var(--bg-surface); 
    border: 1px solid var(--border-light); 
    border-radius: var(--radius-xl); 
    box-shadow: var(--shadow-sm); 
    width: 100%; position: relative; 
    overflow: hidden; margin-bottom: 40px; padding: 40px; 
    transition: transform 0.3s; 
}
.glass-card:hover { box-shadow: var(--shadow-md); }

/* Buttons */
.btn, .alert-btn, .tool-btn { 
    border: none; outline: none; cursor: pointer; font-family: inherit; 
    font-weight: 700; transition: all 0.3s var(--ease-smooth); 
    display: inline-flex; align-items: center; justify-content: center; gap: 10px;
    letter-spacing: -0.01em; position: relative; overflow: hidden;
}
.btn:active, .alert-btn:active { transform: scale(0.96); }

.alert-btn { 
    width: 100%; padding: 20px; border-radius: var(--radius-md); 
    background: var(--bg-input); color: var(--text-primary); font-size: 18px; 
}
.alert-btn.primary { 
    background: var(--accent); color: var(--on-accent); 
    box-shadow: 0 4px 15px var(--accent-dim); 
}
.alert-btn.primary:hover { 
    background: var(--accent-hover); 
    box-shadow: 0 10px 25px var(--accent-dim); transform: translateY(-3px); 
}

/* Inputs */
input[type="text"], input[type="password"], input[type="email"], input[type="number"], select, textarea { 
    width: 100%; padding: 18px 22px; border-radius: var(--radius-md); 
    border: 2px solid transparent; background: var(--bg-input); 
    color: var(--text-primary); font-size: 17px; font-weight: 500;
    transition: all 0.3s; 
}
input:focus, select:focus { 
    border-color: var(--accent); background: var(--bg-surface); 
    box-shadow: 0 0 0 4px var(--accent-dim); outline: none; 
}

/* iOS Style Toggles */
.ios-toggle-wrapper { 
    display: flex; justify-content: space-between; align-items: center; 
    padding: 18px; background: var(--bg-surface); border: 1px solid var(--border-light);
    border-radius: var(--radius-sm); margin-bottom: 12px; cursor: pointer; transition: 0.2s;
}
.ios-toggle-wrapper:hover { background: var(--bg-surface-hover); border-color: var(--accent); }
.ios-toggle-label { font-weight: 600; font-size: 16px; }
.ios-toggle { 
    appearance: none; width: 54px; height: 32px; 
    background: var(--bg-input); border-radius: 99px; 
    position: relative; transition: 0.4s var(--ease-elastic); cursor: pointer; border: 1px solid var(--border-light); 
}
.ios-toggle:checked { background: var(--success); border-color: transparent; }
.ios-toggle::after { 
    content:''; position: absolute; top: 2px; left: 2px; width: 26px; height: 26px; 
    background: white; border-radius: 50%; transition: 0.4s var(--ease-elastic); 
    box-shadow: 0 2px 6px rgba(0,0,0,0.2); 
}
.ios-toggle:checked::after { transform: translateX(22px); }

/* =========================================
   9. UPLOAD AREA & WORKSPACE
   ========================================= */

.upload-area { 
    width: 100%; min-height: 300px; display: flex; flex-direction: column; align-items: center; justify-content: center; 
    border: 3px dashed var(--border-light); border-radius: var(--radius-xl); 
    background: var(--bg-surface); transition: all 0.3s; cursor: pointer; margin-bottom: 30px; 
}
.upload-area:hover, .upload-area.drag-over { border-color: var(--accent); background: var(--accent-dim); transform: scale(1.01); }

/* =========================================
   10. ANIMATION ENGINE
   ========================================= */

/* --- LEGACY ANIMATIONS (Default) --- */
@keyframes legacyFadeUp {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- BETA ANIMATIONS (Modern) --- */
@keyframes betaFadeUp {
    0% { opacity: 0; transform: translateY(50px) scale(0.96); filter: blur(8px); }
    100% { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}

body.beta-animations .content-wrapper {
    animation: betaFadeUp 0.9s var(--ease-out-expo) forwards;
}

body.beta-animations .tool-card {
    opacity: 0; 
    animation: betaFadeUp 0.8s var(--ease-out-expo) forwards;
}

/* Stagger Logic for Grid in Beta Mode */
body.beta-animations .tool-card:nth-child(1) { animation-delay: 0.05s; }
body.beta-animations .tool-card:nth-child(2) { animation-delay: 0.1s; }
body.beta-animations .tool-card:nth-child(3) { animation-delay: 0.15s; }
body.beta-animations .tool-card:nth-child(4) { animation-delay: 0.2s; }
body.beta-animations .tool-card:nth-child(5) { animation-delay: 0.25s; }
body.beta-animations .tool-card:nth-child(6) { animation-delay: 0.3s; }
body.beta-animations .tool-card:nth-child(7) { animation-delay: 0.35s; }
body.beta-animations .tool-card:nth-child(8) { animation-delay: 0.4s; }

/* Navbar Expansion Animation */
body.beta-animations #global-navbar.expanded .nav-pill {
    transition: all 0.7s var(--ease-out-expo);
}

/* =========================================
   11. ACCESSIBILITY OVERRIDES
   ========================================= */

/* 1. Bold Text */
body.bold-text { font-weight: 700 !important; }
body.bold-text p, body.bold-text span, body.bold-text a, body.bold-text input, body.bold-text button, body.bold-text label { font-weight: 700 !important; }
body.bold-text h1, body.bold-text h2, body.bold-text h3 { font-weight: 900 !important; letter-spacing: 0.01em; }

/* 2. Saturated Colors */
body.saturated-colors { filter: saturate(1.8) contrast(1.1); }

/* 3. Monochrome */
body.monochrome { filter: grayscale(100%); }
body.monochrome .tool-card:hover { transform: translateY(-5px); box-shadow: 0 0 0 3px #000; } 

/* 4. Transparency Off */
body.no-transparency { --bg-glass: var(--bg-surface); --bg-glass-heavy: var(--bg-surface); --nav-bg: var(--bg-surface); }
body.no-transparency * { backdrop-filter: none !important; -webkit-backdrop-filter: none !important; }

/* 5. Show Borders */
body.show-borders * { border-width: 1px !important; } 
body.show-borders .glass-card, 
body.show-borders .nav-pill, 
body.show-borders .btn, 
body.show-borders input, 
body.show-borders .tool-card,
body.show-borders .ios-toggle-wrapper { 
    border: 2px solid var(--text-primary) !important; 
    box-shadow: none !important; 
}

/* 6. Reduce Motion */
body.reduce-motion *, body.reduce-motion *::before, body.reduce-motion *::after { 
    animation-duration: 0.001s !important; transition-duration: 0.001s !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important;
}

/* =========================================
   12. MEDIA QUERIES
   ========================================= */

@media (max-width: 768px) {
    body { padding-top: 110px; }
    .content-wrapper { padding: 0 16px; }
    .hero-title { font-size: 3rem; margin-bottom: 16px; }
    .tools-grid { grid-template-columns: repeat(2, 1fr); gap: 12px; }
    .tool-card { padding: 20px 10px; height: 150px; }
    
    /* Mobile Menu Fullscreen Fix */
    #global-navbar.expanded .nav-pill {
        width: 100% !important; max-width: 100% !important;
        border-radius: 0 0 24px 24px !important;
        top: 0; margin-top: -24px; min-height: 100vh;
        border-left: none; border-right: none; border-top: none;
    }
}