/* ===== Tools Grid & Smooth Hide/Show ===== */
    #toolsGrid {
      display: grid;
      grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
      gap: 1rem;
      transition: all 0.3s ease;
    }
    
    #toolsGrid .tool {
      padding: 1rem;
      border-radius: 12px;
      background: var(--card-bg);
      box-shadow: 0 4px 12px rgba(0,0,0,0.1);
      transition: opacity 0.3s ease, transform 0.3s ease;
      opacity: 0;
      transform: scale(0.95);
      display: none;
      flex-direction: column;
      gap: 0.5rem;
      text-decoration: none;
      color: inherit;
      align-items: center;
    }
    
   

    
    #toolsGrid .tool.hidden {
      opacity: 0;
      transform: scale(0.95);
      pointer-events: none;
    }
    .tool-header {
      display: flex;
      align-items: center;
      gap: 0.5rem; /* space between icon and title */
    }
    .tool-ico i { font-size: 24px; }
    .tool-ico { width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; background: color-mix(in hsl, var(--brand) 20%, transparent); border: 1px solid var(--border); }
    .tool-title { font-weight: bold; font-size: 1.1rem; }
    .tool-desc { font-size: 0.9rem; color: var(--text-muted); }
    
    .tools-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    
    #toolsGrid .tool:hover { transform: translateY(-3px); box-shadow: 0 12px 26px rgba(0,0,0,.2); }
    

    #noResults { display: none; margin-top: 1rem; font-style: italic; }
    
    /* Category Filter Buttons */
    #categoryFilter button {
      transition: all 0.25s ease;
    }
    
    #categoryFilter button:hover {
      transform: scale(1.05);
      background: var(--brand);
      color: #fff;
      border-color: var(--brand);
    }
    
    #categoryFilter button.active {
      background: var(--brand);
      color: #fff;
      border-color: var(--brand);
      transform: scale(1.1);
    }
    
    /* Container for buttons */
    #toolsButtons {
      display: flex;
      justify-content: center; /* center horizontally */
      gap: 1rem;               /* space between buttons */
      margin-top: 20px;        /* spacing above buttons */
      flex-wrap: wrap;          /* stack on smaller screens */
    }
    
    /* Common button style */
    #loadMoreBtn,
    #seeAllBtn {
      padding: 0.7rem 1.5rem;
      font-size: 1rem;
      font-weight: 500;
      border-radius: 8px;
      border: none;
      cursor: pointer;
      transition: all 0.3s ease;
      box-shadow: 0 4px 8px rgba(0,0,0,0.1);
    }
    
    /* Load More button */
    #loadMoreBtn {
      background-color: #007bff;
      color: #fff;
    }
    #loadMoreBtn:hover {
      background-color: #0056b3;
      transform: translateY(-2px) scale(1.03);
      box-shadow: 0 6px 12px rgba(0,0,0,0.2);
    }
    
    /* See All Calculators button */
    #seeAllBtn {
      background-color: #28a745;
      color: #fff;
      display: none; /* JS will show it when needed */
    }
    #seeAllBtn:hover {
      background-color: #1e7e34;
      transform: translateY(-2px) scale(1.03);
      box-shadow: 0 6px 12px rgba(0,0,0,0.2);
    }




    /* CSS For Index page */

    :root {
      --bg: #0b0f17;
      --bg-elev: #0f1522;
      --card: #121a2a;
      --text: #e6ebf5;
      --muted: #a9b2c3;
      --brand: #6aa2ff;
      --brand-2: #4fe3c1;
      --ring: rgba(111, 168, 255, 0.5);
      --border: #223049;
      --ok: #31d0aa;
      --warn: #ffb857;
      --danger: #ff6b6b;
      --shadow: 0 10px 30px rgba(0,0,0,.35), 0 1px 0 rgba(255,255,255,.03) inset;
    }
    [data-theme="light"] {
      --bg: #f6f8fb;
      --bg-elev: #ffffff;
      --card: #ffffff;
      --text: #0c1220;
      --muted: #55627a;
      --brand: #3359ff;
      --brand-2: #18c7a3;
      --ring: rgba(51, 89, 255, .25);
      --border: #e5e9f2;
      --shadow: 0 10px 30px rgba(10,14,22,.06), 0 1px 0 rgba(255,255,255,1) inset;
    }

    * { box-sizing: border-box; }
    html, body { height: 100%; }
    body {
      margin: 0;
      font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
      color: var(--text);
      background: radial-gradient(1200px 600px at 70% -10%, rgba(80,150,255,.20), transparent 60%),
                  radial-gradient(800px 400px at 10% -10%, rgba(79,227,193,.18), transparent 60%),
                  var(--bg);
      line-height: 1.6;
    }
    a { color: inherit; text-decoration: none; }
    .container { width: min(1100px, 92%); margin: 0 auto; }

    /* Header */
    .header {
      position: sticky; top: 0; z-index: 50;
      backdrop-filter: saturate(1.2) blur(10px);
      background: color-mix(in hsl, var(--bg) 85%, transparent);
      border-bottom: 1px solid var(--border);
    }
    .nav { display: flex; align-items: center; justify-content: space-between; gap: 16px; padding: 14px 0; }
    .brand { display: flex; align-items: center; gap: 10px; font-weight: 800; letter-spacing: .2px; }
    .logo {
      width: 36px; height: 36px; border-radius: 10px;
      background: linear-gradient(135deg, var(--brand), var(--brand-2));
      display: grid; place-items: center; color: #00131a; font-weight: 900;
      box-shadow: 0 8px 24px rgba(80,150,255,.35);
    }
    .nav-links { display: flex; gap: 18px; align-items: center; }
    .nav-links a { color: var(--muted); font-weight: 600; }
    .nav-cta { display: flex; gap: 10px; align-items: center; }
    .btn { padding: 10px 14px; border-radius: 12px; border: 1px solid var(--border); background: var(--bg-elev); color: var(--text); box-shadow: var(--shadow); font-weight: 600; }
    .btn:hover { transform: translateY(-1px); }
    .btn-primary { background: linear-gradient(135deg, var(--brand), var(--brand-2)); color: #051018; border: none; }
    .btn-ghost { background: transparent; border: 1px solid var(--border); }

    .theme-toggle { border-radius: 12px; height: 40px; width: 40px; display: grid; place-items: center; border: 1px solid var(--border); background: var(--bg-elev); }

    .menu-toggle { display: none; }

    /* Hero */
    .hero { padding: 64px 0 32px; text-align: center; position: relative; }
    .eyebrow { display: inline-flex; align-items: center; gap: 8px; padding: 6px 10px; border-radius: 999px; background: color-mix(in hsl, var(--brand) 20%, transparent); color: var(--text); border: 1px solid var(--border); font-weight: 600; }
    .title { font-size: clamp(28px, 4vw, 44px); line-height: 1.1; margin: 14px 0 10px; font-weight: 800; }
    .subtitle { color: var(--muted); font-size: clamp(14px, 2.2vw, 18px); margin: 0 auto 26px; max-width: 760px; }

    /* Search */
    .search-wrap { width: min(760px, 96%); margin: 0 auto; position: relative; }
    .search {
      display: grid; grid-template-columns: 1fr auto; gap: 10px; align-items: center;
      padding: 10px; border-radius: 16px; background: var(--bg-elev); box-shadow: var(--shadow); border: 1px solid var(--border);
    }
    .search input { height: 48px; border: none; outline: none; padding: 0 14px; border-radius: 12px; background: #0c1320; color: var(--text); font-size: 16px; }
    [data-theme="light"] .search input { background: #f2f5fb; color: #0c1220; }

    .kpis { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; margin: 20px auto 0; max-width: 760px; }
    .kpi { padding: 12px 14px; border-radius: 14px; background: var(--bg-elev); border: 1px solid var(--border); display: flex; align-items: center; justify-content: center; gap: 10px; color: var(--muted); font-weight: 600; }

    /* Tools Grid */
    .section { padding: 42px 0; }
    .section h2 { font-size: clamp(22px, 3vw, 30px); margin: 0 0 18px; }
    
    

    /* CTA Strip */
    .cta-strip { margin: 26px 0 0; border: 1px dashed var(--border); border-radius: 16px; padding: 16px; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; background: color-mix(in hsl, var(--brand-2) 8%, transparent); }

    /* Counters */
    .counters { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; }
    .counter { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 18px; text-align: center; }
    .counter b { font-size: 26px; display: block; }
    .counter span { color: var(--muted); }

    /* Pricing */
    .pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; }
    .plan { background: var(--card); border: 1px solid var(--border); border-radius: 18px; padding: 20px; position: relative; overflow: hidden; }
    .plan.popular { outline: 2px solid color-mix(in hsl, var(--brand) 45%, transparent); box-shadow: 0 12px 26px rgba(51, 89, 255, .18); }
    .price { font-size: 34px; font-weight: 800; margin: 8px 0; }
    .features { color: var(--muted); display: grid; gap: 8px; margin: 12px 0 18px; }

    /* FAQ */
    .faq { display: grid; gap: 10px; }
    details { background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 16px; }
    summary { cursor: pointer; font-weight: 700; }
    details[open] { outline: 1px solid var(--ring); }

    /* Newsletter */
    .newsletter { background: linear-gradient(135deg, color-mix(in hsl, var(--brand) 12%, transparent), color-mix(in hsl, var(--brand-2) 12%, transparent)); border: 1px solid var(--border); border-radius: 18px; padding: 20px; display: grid; grid-template-columns: 1fr auto; gap: 14px; align-items: center; }

    /* Footer */
    .footer { padding: 24px 0 25px; color: var(--muted); border-top: 1px solid var(--border); margin-top: 42px; }
    .foot-grid { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 20px; }
    .foot-col h4 { color: var(--text); margin: 0 0 10px; }
    .foot-col a { color: var(--muted); display: block; padding: 6px 0; }
    .copyright { text-align: center; margin-top: 50px; font-size: 14px; }

    /* Responsive */
    @media (max-width: 980px) {
      .tools-grid { grid-template-columns: repeat(2, 1fr); }
      .pricing { grid-template-columns: repeat(2, 1fr); }
      .counters { grid-template-columns: repeat(2, 1fr); }
      .foot-grid { grid-template-columns: 1fr 1fr; }
      .nav-links { display: none; }
      .menu-toggle { display: inline-grid; }
    }
    @media (max-width: 640px) {
      .tools-grid { grid-template-columns: 1fr; }
      .pricing { grid-template-columns: 1fr; }
      .newsletter { grid-template-columns: 1fr; }
      .kpis { grid-template-columns: 1fr; }
      .foot-grid { grid-template-columns: 1fr; }
      .search { grid-template-columns: 1fr; }
    }

    /* Utility */
    .hidden { display: none !important; }
    .pill { padding: 6px 10px; border-radius: 999px; border: 1px solid var(--border); color: var(--muted); font-weight: 600; }
    .divider { height: 1px; background: var(--border); margin: 24px 0; }
    
    /* Default: hide menu on small screens */
    /* Mobile menu container */
    @media (max-width: 768px) {
      #navLinks {
        overflow: hidden;              /* hide content when collapsed */
        max-height: 0;                  /* collapsed by default */
        flex-direction: column;
        gap: 1rem;
        background-color: var(--bg, #fff);
        position: absolute;
        top: 60px;                      /* header height */
        right: 0;
        left: 0;
        padding: 0 2rem;                /* horizontal padding */
        box-shadow: 0 4px 12px rgba(0,0,0,0.1);
        transition: max-height 0.4s ease, padding 0.4s ease;
        z-index: 100;
      }
    
      #navLinks.show {
        max-height: 500px;             /* enough to show menu items */
        padding: 1rem 2rem;            /* restore vertical padding */
      }
    
      .menu-toggle {
        display: block;
      }
    }
    
    /* Desktop menu stays visible */
    @media (min-width: 769px) {
      #navLinks {
        display: flex !important;
        flex-direction: row;
        gap: 2rem;
        position: static;
        max-height: none;
        padding: 0;
        box-shadow: none;
      }
    
      .menu-toggle {
        display: none;
      }
    }