.hero-h1, .hero-text { text-rendering: optimizeSpeed; }.hero-h1, .hero-text {content-visibility: auto;contain-intrinsic-size: 200px; }
   .tool-panel { display: none; }
        .tool-panel.active { display: block; animation: fadeIn 0.4s ease-out; }
        input[type=range] { -webkit-appearance: none; background: transparent; }
        input[type=range]::-webkit-slider-thumb {
            -webkit-appearance: none; height: 16px; width: 16px; border-radius: 50%;
            background: #3b82f6; cursor: pointer; margin-top: -6px; box-shadow: 0 0 0 2px white; transition: transform 0.1s;
        }
        input[type=range]::-webkit-slider-thumb:hover { transform: scale(1.1); }
        input[type=range]::-webkit-slider-runnable-track {
            width: 100%; height: 4px; cursor: pointer; background: #cbd5e1; border-radius: 2px;
        }
        .dark input[type=range]::-webkit-slider-runnable-track { background: #475569; }
        .dark input[type=range]::-webkit-slider-thumb { box-shadow: 0 0 0 2px #1e293b; }
	.nav-link {
    position: relative;
    padding-bottom: 4px;
    transition: color 0.3s;
  }
  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 0%;
    height: 2px;
    background: linear-gradient(to right, #2563eb, #4f46e5);
    transition: width 0.3s ease;
  }
  .nav-link:hover::after {
    width: 100%;
  }
  .hamburger-line {
    width: 24px;
    height: 2px;
    background-color: currentColor;
    transition: all 0.3s ease;
  }
  .open span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 5px);
  }
  .open span:nth-child(2) {
    opacity: 0;
  }
  .open span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -5px);
  }
        .hero-grid {
            background-size: 20px 20px;
            background-image: 
                linear-gradient(to right, rgba(0, 0, 0, 0.08) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(0, 0, 0, 0.08) 1px, transparent 1px);
            mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
            -webkit-mask-image: linear-gradient(to bottom, black 50%, transparent 100%);
        }
        .dark .hero-grid {
            background-image: 
                linear-gradient(to right, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
                linear-gradient(to bottom, rgba(255, 255, 255, 0.05) 1px, transparent 1px);
        }
        .seo-tag {
            @apply px-2 py-1 bg-gray-100 dark:bg-gray-700 text-xs rounded-md text-gray-600 dark:text-gray-300 font-medium border border-gray-200 dark:border-gray-600 select-all cursor-pointer hover:bg-blue-50 dark:hover:bg-blue-900/30 hover:text-blue-600 dark:hover:text-blue-400 transition-colors;
        }
        .check-pattern {
            background-image: radial-gradient(#cbd5e1 1px, transparent 1px);
            background-size: 20px 20px;
        }
        .dark .check-pattern {
            background-image: radial-gradient(#334155 1px, transparent 1px);
        }
        details {
            border-bottom: 1px solid #eee;
            margin-bottom: 10px;
            overflow: hidden;
        }
        summary {
            font-weight: 600;
            cursor: pointer;
            padding: 15px;
            list-style: none; 
            position: relative;
            transition: color 0.3s ease;
        }
        summary::-webkit-details-marker {
            display: none; 
        }
        summary:hover {
    color: var(--pk-primary); 
    background-color: var(--pk-bg-card);
}
  :root {
    --pk-primary: #6366f1;       
    --pk-bg-section: #f8fafc;   
    --pk-bg-card: #ffffff;      
    --pk-text-head: #0f172a;     
    --pk-text-body: #475569;   
    --pk-border: #e2e8f0;       
    --pk-border-hover: #cbd5e1;  
    --pk-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --pk-icon: #94a3b8;
    --pk-ease: cubic-bezier(0.4, 0, 0.2, 1); }
.dark {
  --pk-bg-section: #0f172a;   
  --pk-bg-card: #1e293b;  
  --pk-text-head: #f1f5f9;
  --pk-text-body: #94a3b8;
  --pk-border: #334155;
  --pk-border-hover: #475569;
  --pk-shadow: 0 4px 6px -1px rgba(0,0,0,0.4);
  --pk-icon: #64748b;
}
  .pk-faq-section {
    background-color: var(--pk-bg-section);
    padding: 80px 24px;
    font-family: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
    color: var(--pk-text-body);
    transition: background-color 0.3s ease;
  }
  .pk-container {
    max-width: 768px;
    margin: 0 auto;
    width: 100%;
  }
  .pk-header {
    text-align: center;
    margin-bottom: 50px;
  }
  .pk-badge {
    display: inline-block;
    background-color: rgba(99, 102, 241, 0.1); 
    color: var(--pk-primary);
    font-size: 0.75rem;
    font-weight: 600;
    padding: 6px 12px;
    border-radius: 99px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 16px;
  }
  .pk-header h2 {
    margin: 0 0 12px;
    font-size: 2.5rem;
    font-weight: 600;
    color: var(--pk-text-head);
    letter-spacing: -0.02em;
    line-height: 1.1;
  }
  .pk-header p {
    font-size: 1.125rem;
    margin: 0;
    opacity: 0.9;
    max-width: 500px;
    margin: 0 auto;
  }
  .pk-faq-item {
    background: var(--pk-bg-card);
    border: 1px solid var(--pk-border);
    border-radius: 12px;
    margin-bottom: 16px;
    overflow: hidden;
    transition: all 0.2s var(--pk-ease);
  }
  .pk-faq-item:hover {
    border-color: var(--pk-border-hover);
  }
  .pk-faq-item[open] {
    border-color: var(--pk-primary);
    box-shadow: var(--pk-shadow);
  }
  .pk-question {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 22px 24px;
    cursor: pointer;
    list-style: none;
    background: transparent;
    user-select: none;
  }
  .pk-question::-webkit-details-marker { display: none; }
  .pk-question h3 {
    margin: 0;
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--pk-text-head);
    transition: color 0.2s ease;
  }
  .pk-faq-item[open] .pk-question h3 {
    color: var(--pk-primary);
  }
  .pk-icon {
    width: 24px;
    height: 24px;
    flex-shrink: 0;
    color: var(--pk-icon);
    transition: transform 0.3s var(--pk-ease), color 0.3s var(--pk-ease);
    margin-left: 16px;
  }
  details[open] .pk-icon {
    transform: rotate(180deg);
    color: var(--pk-primary);
  }
  .pk-answer-wrapper {
    display: grid;
    grid-template-rows: 0fr;
    transition: grid-template-rows 0.3s var(--pk-ease);
  }
  details[open] .pk-answer-wrapper {
    grid-template-rows: 1fr;
  }
  .pk-answer-inner {
    overflow: hidden;
  }
  .pk-answer-inner p {
    margin: 0;
    padding: 0 24px 24px 24px;
    line-height: 1.65;
    color: var(--pk-text-body);
  }
  @media (max-width: 640px) {.pk-faq-section { padding: 60px 16px; } .pk-header h2 { font-size: 1.85rem; }.pk-question { padding: 18px 20px; } .pk-answer-inner p { padding: 0 20px 20px 20px; font-size: 0.95rem; }
  }
        .visual-screen {
            transition: opacity 0.5s ease-in-out, transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
            opacity: 0;
            transform: translateY(10px) scale(0.98);
            pointer-events: none;
            position: absolute;
            inset: 0;
        }
        .visual-screen.active {
            opacity: 1;
            transform: translateY(0) scale(1);
            position: relative;
        }
        .step-progress-bar {
            height: 0%;
            transition: height 4s linear;
        }
        .step-item.active .step-progress-bar {
            height: 100%;
        }
        .cursor-blink { animation: blink 1s step-end infinite; }
        @keyframes blink { 50% { opacity: 0; } }

        /* --- Custom Gradient for Feature Icons --- */
        .feature-icon-gradient {
            background-image: linear-gradient(to bottom right, var(--tw-gradient-stops));
        }
        .select-tool-heading {
            font-size: 14px; font-weight: 700; margin-bottom: 8px;
       }
       .terminal-meta { margin-left: 16px;  font-size: 10px; color: #64748b; /* slate-500 */ font-family: monospace;
    }