/* ============================================================
   TestMyTech.com — style.css v7.3 (Astro Full & Fixed)
   Aesthetic: OLED Mobile App · Void Black · Electric Neon
   Fonts: Outfit (unified) + JetBrains Mono (accents)
   ============================================================ */

   @import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;500;600;700&display=swap');

   /* ══════════════════════════════════════════
      DESIGN TOKENS (Base is Light Mode/OLED style)
   ══════════════════════════════════════════ */
   :root {
     /* Light Mode - Screen-lit / Crisp */
     --black:        #ffffff;
     --void:         #f8f9fa;
     --deep:         #f1f3f5;
     --surface-1:    #ffffff;
     --surface-2:    #f8f9fa;
     --surface-3:    #e9ecef;
     --surface-4:    #dee2e6;
   
     /* Saturated Neon Palette for Light Mode */
     --cyan:         #00b7d4;
     --electric:     #0055ff;
     --violet:       #8a2be2;
     --green:        #00c853;
     --amber:        #ff8c00;
     --rose:         #ff1744;
   
     /* Text - High Contrast */
     --text-primary:   #000000;
     --text-secondary: rgba(0,0,0,0.7);
     --text-muted:     rgba(0,0,0,0.5);
     --text-faint:     rgba(0,0,0,0.1);
   
     /* Borders */
     --border-subtle:  rgba(0,0,0,0.08);
     --border-bright:  rgba(0,0,0,0.15);
   
     /* Glows */
     --glow-cyan:    0 0 16px rgba(0,183,212,0.25);
     --glow-electric:0 0 16px rgba(0,85,255,0.25);
     --glow-violet:  0 0 16px rgba(138,43,226,0.25);
     --glow-green:   0 0 16px rgba(0,200,83,0.25);
     
     --glow-card:    0 0 0 1px var(--border-subtle), 0 4px 24px rgba(0,0,0,0.04);
     --glow-card-hover: 0 0 0 1px rgba(0,85,255,0.3), 0 12px 40px rgba(0,85,255,0.1), 0 0 0 4px rgba(0,85,255,0.05);
   
     /* Typography */
     --font-display: 'Outfit', sans-serif;
     --font-mono:    'JetBrains Mono', monospace;
   
     --radius-sm:  8px;
     --radius-md:  14px;
     --radius-lg:  20px;
     --radius-xl:  28px;
     --radius-full: 9999px;
   
     --transition: all 0.22s cubic-bezier(0.4, 0, 0.2, 1);
     --transition-bounce: all 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
   
     --nav-h: 64px;
     --max-w: 1280px;
   }
   
   [data-theme="dark"] {
     --black:        #000000;
     --void:         #050507;
     --deep:         #0a0a0f;
     --surface-1:    #0f0f17;
     --surface-2:    #141420;
     --surface-3:    #1a1a28;
     --surface-4:    #1f1f30;
   
     --cyan:         #00e5ff;
     --electric:     #4d8dff;
     --violet:       #a855f7;
     --green:        #00ff88;
     --amber:        #ffab00;
     --rose:         #ff3d6b;
   
     --text-primary:   #ffffff;
     --text-secondary: rgba(255,255,255,0.65);
     --text-muted:     rgba(255,255,255,0.35);
     --text-faint:     rgba(255,255,255,0.18);
   
     --border-subtle:  rgba(255,255,255,0.06);
     --border-bright:  rgba(255,255,255,0.12);
   
     --glow-cyan:    0 0 24px rgba(0,229,255,0.35), 0 0 8px rgba(0,229,255,0.2);
     --glow-electric:0 0 24px rgba(77,141,255,0.4), 0 0 8px rgba(77,141,255,0.2);
     --glow-violet:  0 0 24px rgba(168,85,247,0.4), 0 0 8px rgba(168,85,247,0.2);
     --glow-green:   0 0 24px rgba(0,255,136,0.35), 0 0 8px rgba(0,255,136,0.2);
     
     --glow-card:    0 0 0 1px var(--border-subtle), 0 8px 32px rgba(0,0,0,0.6), 0 2px 8px rgba(0,0,0,0.4);
     --glow-card-hover: 0 0 0 1px rgba(77,141,255,0.25), 0 16px 48px rgba(0,0,0,0.7), 0 0 32px rgba(77,141,255,0.12);
   }
   
   /* ══════════════════════════════════════════
      RESET & BASE
   ══════════════════════════════════════════ */
   *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
   html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale; }
   
   body {
     font-family: var(--font-display);
     background: var(--black);
     color: var(--text-primary);
     line-height: 1.6;
     overflow-x: hidden;
     transition: background-color 0.4s cubic-bezier(0.4, 0, 0.2, 1), color 0.4s ease;
   }
   
   a { color: inherit; text-decoration: none; }
   img { display: block; max-width: 100%; }
   button { cursor: pointer; border: none; background: none; font-family: inherit; }
   ul { list-style: none; }
   
   /* ══════════════════════════════════════════
      BACKGROUND ATMOSPHERE
   ══════════════════════════════════════════ */
   body::before {
     content: ''; position: fixed; inset: 0; z-index: -2;
     background:
       radial-gradient(ellipse 60% 40% at 20% 10%, rgba(0,85,255,0.05) 0%, transparent 70%),
       radial-gradient(ellipse 50% 40% at 80% 15%, rgba(138,43,226,0.04) 0%, transparent 65%),
       radial-gradient(ellipse 40% 30% at 50% 80%, rgba(0,183,212,0.03) 0%, transparent 60%);
     pointer-events: none;
   }
   [data-theme="dark"] body::before {
     background:
       radial-gradient(ellipse 60% 40% at 20% 10%, rgba(77,141,255,0.12) 0%, transparent 70%),
       radial-gradient(ellipse 50% 40% at 80% 15%, rgba(168,85,247,0.1) 0%, transparent 65%),
       radial-gradient(ellipse 40% 30% at 50% 80%, rgba(0,229,255,0.06) 0%, transparent 60%);
   }
   
   body::after {
     content: ''; position: fixed; inset: -50%; z-index: -1; width: 200%; height: 200%;
     background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 512 512' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
     opacity: 0.015; animation: grain 8s steps(10) infinite; pointer-events: none;
   }
   [data-theme="dark"] body::after { opacity: 0.02; }
   
   @keyframes grain {
     0%, 100% { transform: translate(0,0) scale(1.5); }
     10%  { transform: translate(-2%,-3%) scale(1.5); }
     20%  { transform: translate(3%, 2%) scale(1.5); }
     30%  { transform: translate(-1%, 4%) scale(1.5); }
     40%  { transform: translate(4%,-1%) scale(1.5); }
     50%  { transform: translate(-3%, 1%) scale(1.5); }
     60%  { transform: translate(2%, 3%) scale(1.5); }
     70%  { transform: translate(-4%,-2%) scale(1.5); }
     80%  { transform: translate(1%, 4%) scale(1.5); }
     90%  { transform: translate(3%,-3%) scale(1.5); }
   }
   
   /* ══════════════════════════════════════════
      LAYOUT
   ══════════════════════════════════════════ */
   .container { max-width: var(--max-w); margin: 10px auto; padding: 0 40px; }
   section { padding: 80px 0; }
   .desktop-only { display: flex; }
   
   /* ══════════════════════════════════════════
      NAVIGATION
   ══════════════════════════════════════════ */
   nav.main-nav { position: fixed; top: 0; left: 0; right: 0; z-index: 1000; height: var(--nav-h); }
   nav.main-nav .nav-blur {
     position: absolute; inset: 0; background: rgba(255,255,255,0.85);
     backdrop-filter: blur(24px) saturate(200%); -webkit-backdrop-filter: blur(24px) saturate(200%);
     border-bottom: 1px solid var(--border-subtle); transition: background 0.4s;
   }
   [data-theme="dark"] nav.main-nav .nav-blur { background: rgba(5,5,7,0.75); }
   
   nav.main-nav .nav-inner {
     position: relative; z-index: 1; display: flex; align-items: center; justify-content: space-between;
     height: var(--nav-h); max-width: var(--max-w); margin: 0 auto; padding: 0 40px;
   }
   
   .logo { display: flex; align-items: center; gap: 10px; }
   .logo-mark {
     width: 36px; height: 36px; border-radius: 10px;
     background: linear-gradient(135deg, var(--electric), var(--cyan));
     display: flex; align-items: center; justify-content: center;
     box-shadow: var(--glow-electric); flex-shrink: 0; position: relative; overflow: hidden;
   }
   .logo-mark::after { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(255,255,255,0.25) 0%, transparent 60%); }
   .logo-mark svg { width: 17px; height: 17px; color: white; position: relative; z-index: 1; }
   .logo-wordmark { font-family: var(--font-mono); font-size: 14.5px; font-weight: 700; letter-spacing: -0.5px; color: var(--text-primary); }
   .logo-wordmark em { 
     font-style: normal; 
     background: linear-gradient(90deg, var(--electric), var(--cyan)); 
     -webkit-background-clip: text; 
     background-clip: text;
     -webkit-text-fill-color: transparent; 
   }
   
   .nav-links { display: flex; align-items: center; gap: 2px; background: var(--surface-1); border: 1px solid var(--border-subtle); border-radius: var(--radius-full); padding: 4px; }
   .nav-links a { font-family: var(--font-display); font-size: 14px; font-weight: 600; color: var(--text-secondary); padding: 7px 16px; border-radius: var(--radius-full); transition: var(--transition); white-space: nowrap; }
   .nav-links a:hover { color: var(--text-primary); background: var(--surface-3); }
   .nav-right { display: flex; align-items: center; gap: 12px; }
   
   /* Theme Toggle (Sliding Switch) */
   .theme-switch-wrapper { display: flex; align-items: center; }
   .theme-switch { display: inline-block; height: 32px; position: relative; width: 58px; margin: 0; }
   .theme-switch input { display:none; }
   .slider { background-color: var(--surface-2); bottom: 0; cursor: pointer; left: 0; position: absolute; right: 0; top: 0; transition: .4s; border-radius: 34px; border: 1px solid var(--border-bright); display: flex; align-items: center; justify-content: space-between; padding: 0 6px; box-shadow: inset 0 2px 4px rgba(0,0,0,0.02); }
   .slider:before { background-color: #fff; bottom: 3px; content: ""; height: 24px; left: 3px; position: absolute; transition: .4s cubic-bezier(0.68, -0.55, 0.265, 1.55); width: 24px; z-index: 2; border-radius: 50%; box-shadow: 0 2px 5px rgba(0,0,0,0.15); border: 1px solid var(--border-subtle); }
   input:checked + .slider { background-color: var(--electric); border-color: var(--electric); }
   input:checked + .slider:before { transform: translateX(26px); border-color: transparent; }
   .slider svg { width: 14px; height: 14px; color: var(--text-muted); z-index: 1; transition: 0.3s; }
   input:checked + .slider svg.icon-moon { opacity: 0; }
   input:checked + .slider svg.icon-sun { color: #fff; opacity: 1; }
   [data-theme="dark"] .slider svg.icon-moon { opacity: 0; }
   [data-theme="dark"] .slider svg.icon-sun { color: #fff; opacity: 1; }
   
   .hamburger { display: none; flex-direction: column; gap: 5px; padding: 8px; border-radius: 10px; cursor: pointer; background: var(--surface-2); border: 1px solid var(--border-subtle); transition: var(--transition); }
   .hamburger:hover { border-color: var(--electric); }
   .hamburger span { display: block; width: 18px; height: 1.5px; background: var(--text-primary); border-radius: 2px; transition: var(--transition); }
   .hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
   .hamburger.open span:nth-child(2) { opacity: 0; transform: scaleX(0); }
   .hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }
   
   .mobile-menu { display: none; position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0; background: var(--black); z-index: 999; padding: 32px 24px; flex-direction: column; overflow-y: auto; opacity: 0; transform: translateY(-12px); pointer-events: none; transition: opacity 0.3s ease, transform 0.3s cubic-bezier(0.4,0,0.2,1); }
   .mobile-menu.open { display: flex; opacity: 1; transform: translateY(0); pointer-events: all; }
   .mobile-menu a { display: flex; align-items: center; font-size: 20px; font-weight: 600; color: var(--text-secondary); padding: 18px 0; border-bottom: 1px solid var(--border-subtle); transition: var(--transition); gap: 12px; }
   .mobile-menu a:hover { color: var(--text-primary); padding-left: 6px; }
   .mobile-menu-footer { margin-top: auto; padding-top: 32px; display: flex; align-items: center; justify-content: space-between; }
   .mobile-theme-label { font-size: 14px; font-weight: 600; color: var(--text-muted); font-family: var(--font-mono); text-transform: uppercase; }
   
   /* ══════════════════════════════════════════
      HERO
   ══════════════════════════════════════════ */
   .hero { min-height: auto; padding-top: calc(var(--nav-h) + 60px); padding-bottom: 20px; display: flex; align-items: center; position: relative; overflow: hidden; }
   .hero-orb { position: absolute; border-radius: 50%; filter: blur(80px); pointer-events: none; animation: orbFloat 8s ease-in-out infinite; }
   .orb-1 { width: 600px; height: 600px; background: radial-gradient(circle, rgba(0,85,255,0.08) 0%, transparent 70%); top: -10%; left: -15%; animation-delay: 0s; }
   .orb-2 { width: 500px; height: 500px; background: radial-gradient(circle, rgba(138,43,226,0.06) 0%, transparent 70%); top: 20%; right: -10%; animation-delay: -3s; }
   .orb-3 { width: 400px; height: 400px; background: radial-gradient(circle, rgba(0,183,212,0.05) 0%, transparent 70%); bottom: 5%; left: 40%; animation-delay: -6s; }
   [data-theme="dark"] .orb-1 { background: radial-gradient(circle, rgba(77,141,255,0.18) 0%, transparent 70%); }
   [data-theme="dark"] .orb-2 { background: radial-gradient(circle, rgba(168,85,247,0.14) 0%, transparent 70%); }
   [data-theme="dark"] .orb-3 { background: radial-gradient(circle, rgba(0,229,255,0.1) 0%, transparent 70%); }
   
   @keyframes orbFloat {
     0%, 100% { transform: translate(0,0) scale(1); }
     33%       { transform: translate(20px,-30px) scale(1.05); }
     66%       { transform: translate(-15px, 20px) scale(0.95); }
   }
   
   .hero-inner { position: relative; z-index: 1; text-align: center; width: 100%; }
   .hero-title { font-size: clamp(44px, 7vw, 92px); font-weight: 900; line-height: 1.0; letter-spacing: -4px; color: var(--text-primary); margin-bottom: 20px; animation: fadeUp 0.7s 0.1s ease both; }
   .hero-title .line-accent { 
     display: block; 
     background: linear-gradient(90deg, var(--electric) 0%, var(--cyan) 50%, var(--violet) 100%); 
     -webkit-background-clip: text; 
     background-clip: text;
     -webkit-text-fill-color: transparent; 
     background-size: 200% auto; 
     animation: fadeUp 0.7s 0.1s ease both, gradientShift 4s linear infinite; 
   }
   @keyframes gradientShift { 0% { background-position: 0% center; } 50% { background-position: 100% center; } 100% { background-position: 0% center; } }
   .hero-sub { font-size: clamp(15px, 1.8vw, 18px); color: var(--text-secondary); max-width: 520px; margin: 0 auto 36px; font-weight: 400; line-height: 1.7; animation: fadeUp 0.7s 0.2s ease both; }
   
   .search-wrap { position: relative; max-width: 540px; margin: 0 auto 44px; animation: fadeUp 0.7s 0.3s ease both; z-index: 10; }
   .search-bar { display: flex; align-items: center; gap: 14px; background: var(--surface-2); border: 1px solid var(--border-bright); border-radius: var(--radius-xl); padding: 14px 20px; transition: var(--transition); position: relative; overflow: hidden; cursor: text; }
   .search-input { flex: 1; border: none; outline: none; background: transparent; font-size: 15px; font-family: var(--font-display); font-weight: 400; color: var(--text-primary); position: relative; z-index: 2; cursor: text; min-width: 0; }
   .search-bar::before { content: ''; position: absolute; inset: 0; background: linear-gradient(135deg, rgba(0,85,255,0.04) 0%, rgba(0,183,212,0.02) 100%); opacity: 0; transition: opacity 0.3s; }
   .search-bar:focus-within { border-color: var(--electric); box-shadow: 0 0 0 3px rgba(0,85,255,0.15), var(--glow-electric); }
   .search-bar:focus-within::before { opacity: 1; }
   .search-icon { width: 18px; height: 18px; color: var(--electric); flex-shrink: 0; position: relative; z-index: 1; }
   .search-input::placeholder { color: var(--text-muted); }
   .search-kbd { font-family: var(--font-mono); font-size: 10px; color: var(--text-muted); background: var(--surface-3); border: 1px solid var(--border-subtle); border-radius: 6px; padding: 3px 7px; position: relative; z-index: 1; flex-shrink: 0; }
   
   /* ══════════════════════════════════════════
      SECTION HEADERS
   ══════════════════════════════════════════ */
   .sec-head { margin-bottom: 56px; }
   .sec-label { display: inline-flex; align-items: center; gap: 7px; font-family: var(--font-mono); font-size: 11px; font-weight: 700; letter-spacing: 1.2px; text-transform: uppercase; color: var(--electric); margin-bottom: 14px; }
   .sec-label-dot { width: 6px; height: 6px; background: var(--electric); border-radius: 50%; box-shadow: 0 0 8px var(--electric); }
   .sec-title { font-size: clamp(28px, 4vw, 46px); font-weight: 800; letter-spacing: -2px; color: var(--text-primary); line-height: 1.1; margin-bottom: 12px; }
   .sec-sub { font-size: 15.5px; color: var(--text-secondary); max-width: 480px; line-height: 1.7; }
   
   /* ══════════════════════════════════════════
      TOOL CARDS (Robust [data-cat] Logic)
   ══════════════════════════════════════════ */
   .tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(300px, 1fr)); gap: 16px; }
   .tool-card {
     position: relative; background: var(--surface-1); border: 1px solid var(--border-subtle); border-radius: var(--radius-lg);
     padding: 24px; display: flex; flex-direction: column; text-decoration: none; cursor: pointer; overflow: hidden;
     transition: var(--transition); box-shadow: var(--glow-card);
   }
   .tool-card::before { content: ''; position: absolute; top: 0; left: 15%; right: 15%; height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.4), transparent); }
   [data-theme="dark"] .tool-card::before { background: linear-gradient(90deg, transparent, rgba(255,255,255,0.1), transparent); }
   .tool-card:hover { transform: translateY(-4px); box-shadow: var(--glow-card-hover); border-color: var(--border-bright); }
   
   .tool-card::after { content: ''; position: absolute; top: 20%; left: 0; width: 2px; height: 60%; border-radius: 0 2px 2px 0; opacity: 0; transition: opacity 0.3s ease; }
   .tool-card:hover::after { opacity: 1; }
   
   .card-header { display: flex; align-items: flex-start; justify-content: space-between; margin-bottom: 18px; }
   
   /* Base Icon & Tag Rules */
   .tool-icon {
     width: 48px; height: 48px; border-radius: 14px; display: flex; align-items: center; justify-content: center;
     flex-shrink: 0; position: relative; border: 1px solid var(--border-subtle); background: var(--surface-2); color: var(--text-secondary);
   }
   .tool-icon::before { content: ''; position: absolute; inset: 0; border-radius: inherit; background: linear-gradient(135deg, rgba(255,255,255,0.5) 0%, transparent 60%); }
   [data-theme="dark"] .tool-icon::before { background: linear-gradient(135deg, rgba(255,255,255,0.12) 0%, transparent 60%); }
   .tool-icon svg { width: 22px; height: 22px; position: relative; z-index: 1; }
   
   .cat-tag {
     font-family: var(--font-mono); font-size: 9.5px; font-weight: 700; letter-spacing: 0.8px; text-transform: uppercase;
     padding: 4px 10px; border-radius: var(--radius-full); border: 1px solid var(--border-subtle); flex-shrink: 0; color: var(--text-secondary); background: var(--surface-2);
   }
   
   /* Category Specific Overrides */
   .tool-card[data-cat="display"] .tool-icon { background: rgba(0,85,255,0.08); color: var(--electric); border-color: rgba(0,85,255,0.2); }
   .tool-card[data-cat="display"] .cat-tag { color: var(--electric); background: rgba(0,85,255,0.05); border-color: rgba(0,85,255,0.2); }
   .tool-card[data-cat="display"]:hover::after { background: var(--electric); box-shadow: 0 0 12px var(--electric); }
   .tool-card[data-cat="display"]:hover { border-color: rgba(0,85,255,0.3); }
   
   .tool-card[data-cat="audio"] .tool-icon { background: rgba(138,43,226,0.08); color: var(--violet); border-color: rgba(138,43,226,0.2); }
   .tool-card[data-cat="audio"] .cat-tag { color: var(--violet); background: rgba(138,43,226,0.05); border-color: rgba(138,43,226,0.2); }
   .tool-card[data-cat="audio"]:hover::after { background: var(--violet); box-shadow: 0 0 12px var(--violet); }
   .tool-card[data-cat="audio"]:hover { border-color: rgba(138,43,226,0.3); }
   
   .tool-card[data-cat="input"] .tool-icon { background: rgba(0,200,83,0.08); color: var(--green); border-color: rgba(0,200,83,0.2); }
   .tool-card[data-cat="input"] .cat-tag { color: var(--green); background: rgba(0,200,83,0.05); border-color: rgba(0,200,83,0.2); }
   .tool-card[data-cat="input"]:hover::after { background: var(--green); box-shadow: 0 0 12px var(--green); }
   .tool-card[data-cat="input"]:hover { border-color: rgba(0,200,83,0.3); }
   
   .tool-card[data-cat="utility"] .tool-icon, .tool-card[data-cat="perf"] .tool-icon, .tool-card[data-cat="device"] .tool-icon { background: rgba(255,140,0,0.08); color: var(--amber); border-color: rgba(255,140,0,0.2); }
   .tool-card[data-cat="utility"] .cat-tag, .tool-card[data-cat="perf"] .cat-tag, .tool-card[data-cat="device"] .cat-tag { color: var(--amber); background: rgba(255,140,0,0.05); border-color: rgba(255,140,0,0.2); }
   .tool-card[data-cat="utility"]:hover::after, .tool-card[data-cat="perf"]:hover::after, .tool-card[data-cat="device"]:hover::after { background: var(--amber); box-shadow: 0 0 12px var(--amber); }
   .tool-card[data-cat="utility"]:hover, .tool-card[data-cat="perf"]:hover, .tool-card[data-cat="device"]:hover { border-color: rgba(255,140,0,0.3); }
   
   .card-body { flex: 1; margin-bottom: 22px; font-family: var(--font-display); }
   .tool-title { font-size: 16px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.4px; margin-bottom: 7px; }
   .tool-desc { font-size: 13px; color: var(--text-secondary); line-height: 1.6; }
   
   .card-footer { display: flex; justify-content: center; }
   .btn-start {
     display: inline-flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 700; font-family: var(--font-display);
     letter-spacing: 0.2px; padding: 10px 22px; border-radius: var(--radius-full); border: 1px solid var(--border-subtle); transition: var(--transition-bounce);
     position: relative; overflow: hidden; background: var(--surface-2); color: var(--text-secondary);
   }
   .btn-start::before { content: ''; position: absolute; inset: 0; opacity: 0; transition: opacity 0.2s; background: linear-gradient(135deg, rgba(255,255,255,0.3) 0%, transparent 60%); }
   .btn-start:hover::before { opacity: 1; }
   .btn-start svg { width: 13px; height: 13px; }
   
   /* Hover Overrides for Button */
   .tool-card[data-cat="display"]:hover .btn-start { background: var(--electric); color: white; border-color: var(--electric); box-shadow: var(--glow-electric); transform: translateY(-1px) scale(1.04); }
   .tool-card[data-cat="audio"]:hover .btn-start { background: var(--violet); color: white; border-color: var(--violet); box-shadow: var(--glow-violet); transform: translateY(-1px) scale(1.04); }
   .tool-card[data-cat="input"]:hover .btn-start { background: var(--green); color: white; border-color: var(--green); box-shadow: var(--glow-green); transform: translateY(-1px) scale(1.04); }
   .tool-card[data-cat="utility"]:hover .btn-start, .tool-card[data-cat="perf"]:hover .btn-start, .tool-card[data-cat="device"]:hover .btn-start { background: var(--amber); color: white; border-color: var(--amber); box-shadow: 0 0 16px rgba(255,140,0,0.25); transform: translateY(-1px) scale(1.04); }
   
   .no-results { display: none; grid-column: 1 / -1; text-align: center; padding: 80px 32px; color: var(--text-muted); }
   .no-results .nr-icon { width: 60px; height: 60px; background: var(--surface-2); border: 1px solid var(--border-subtle); border-radius: 18px; display: flex; align-items: center; justify-content: center; margin: 0 auto 20px; color: var(--text-faint); }
   .no-results .nr-icon svg { width: 26px; height: 26px; }
   .no-results h3 { font-size: 18px; font-weight: 700; color: var(--text-secondary); margin-bottom: 8px; }
   .no-results p { font-size: 14px; }
   
   /* ══════════════════════════════════════════
      SEO / FAQ
   ══════════════════════════════════════════ */
   .seo-section { background: var(--void); border-top: 1px solid var(--border-subtle); padding-bottom: 100px; }
   .seo-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
   .seo-prose h2 { font-size: clamp(24px, 3vw, 36px); font-weight: 800; letter-spacing: -1.2px; color: var(--text-primary); margin-bottom: 22px; line-height: 1.18; }
   .seo-prose p { font-size: 14.5px; color: var(--text-secondary); line-height: 1.8; margin-bottom: 18px; }
   
   .faq-list .faq-item { border-bottom: 1px solid var(--border-subtle); padding: 20px 0; }
   .faq-item:first-child { padding-top: 0; } .faq-item:last-child { border-bottom: none; padding-bottom: 0; }
   .faq-q { font-size: 14.5px; font-weight: 700; color: var(--text-primary); letter-spacing: -0.2px; margin-bottom: 8px; display: flex; align-items: flex-start; gap: 10px; }
   .faq-q::before { content: 'Q'; font-family: var(--font-mono); font-size: 9px; font-weight: 700; color: var(--electric); background: rgba(0,85,255,0.08); border: 1px solid rgba(0,85,255,0.2); border-radius: 5px; padding: 2px 5px; flex-shrink: 0; margin-top: 2px; }
   .faq-a { font-size: 13.5px; color: var(--text-secondary); line-height: 1.7; padding-left: 30px; }
   
   /* ══════════════════════════════════════════
      FOOTER (3-Column Layout)
   ══════════════════════════════════════════ */
   footer { background: var(--black); border-top: 1px solid var(--border-subtle); padding: 60px 0 40px; }
   .footer-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 40px; padding-bottom: 30px; border-bottom: 1px solid var(--border-subtle); flex-wrap: wrap; gap: 20px; }
   .footer-tagline { font-size: 13.5px; color: var(--text-secondary); line-height: 1.6; text-align: right; }
   
   .footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
   .footer-col h4 { font-family: var(--font-mono); font-size: 13px; font-weight: 700; text-transform: uppercase; letter-spacing: 1px; color: var(--text-primary); margin-bottom: 20px; }
   .footer-col a { display: block; font-size: 14px; font-weight: 500; color: var(--text-secondary); margin-bottom: 12px; transition: var(--transition); }
   .footer-col a:hover { color: var(--electric); padding-left: 4px; }
   
   .footer-bottom { margin-top: 60px; display: flex; align-items: center; justify-content: center; }
   .footer-copy { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); }
   
   /* ══════════════════════════════════════════
      SCROLL REVEAL & ANIMATIONS
   ══════════════════════════════════════════ */
   .reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.65s ease, transform 0.65s cubic-bezier(0.4,0,0.2,1); }
   .reveal.visible { opacity: 1; transform: translateY(0); }
   @keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
   
   /* ══════════════════════════════════════════
      RESPONSIVE
   ══════════════════════════════════════════ */
   @media (max-width: 1100px) { .seo-layout { grid-template-columns: 1fr; gap: 48px; } }
   @media (max-width: 768px) {
     .container { padding: 0 20px; } .nav-inner { padding: 0 20px; } section { padding: 60px 0; }
     .desktop-only { display: none !important; } .nav-links { display: none; }
     .hamburger { display: flex; } nav.main-nav .theme-switch-wrapper { display: none; }
     .hero { padding-top: calc(var(--nav-h) + 40px); } .hero-title { letter-spacing: -2.5px; } .search-kbd { display: none; }
     .tools-grid { grid-template-columns: 1fr; }
     .footer-top { flex-direction: column; align-items: flex-start; text-align: left; } .footer-tagline { text-align: left; }
     .footer-grid { grid-template-columns: 1fr; gap: 32px; }
   }
   @media (max-width: 480px) { .hero-title { letter-spacing: -2px; } }
   
   .sr-only { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0,0,0,0); }