/* ─── CSS Custom Properties ─── */
:root {
  --bg: #FBFBFD;
  --bg-card: #FFFFFF;
  --bg-alt: #F3F4F6;
  --text: #111418;
  --text-secondary: #6B7280;
  --border: #E5E7EB;
  --accent: #4B46FA;
  --accent-hover: #3B36DA;
  --accent-2: #FF6F4B;
  --accent-2-hover: #E85A3A;
  --code-bg: #1E1E2E;
  --code-text: #E4E4E7;
  --success: #10B981;
  --radius: 0.75rem;
  --shadow: 0 1px 3px rgba(0,0,0,.08);
  --font-sans: system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'SF Mono', 'Cascadia Code', 'Fira Code', Consolas, monospace;
  --max-w: 72rem;
  --transition: 150ms ease;
}

/* ─── Dark Mode ─── */
.dark,
[data-theme="dark"] {
  --bg: #0B0E14;
  --bg-card: #131720;
  --bg-alt: #1A1F2E;
  --text: #E4E4E7;
  --text-secondary: #9CA3AF;
  --border: #1F2937;
  --code-bg: #0B0E14;
  --shadow: 0 1px 3px rgba(0,0,0,.3);
}

@media (prefers-color-scheme: dark) {
  html:not(.light) {
    --bg: #0B0E14;
    --bg-card: #131720;
    --bg-alt: #1A1F2E;
    --text: #E4E4E7;
    --text-secondary: #9CA3AF;
    --border: #1F2937;
    --code-bg: #0B0E14;
    --shadow: 0 1px 3px rgba(0,0,0,.3);
  }
}

/* ─── Reset ─── */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;-moz-text-size-adjust:100%}
body{font-family:var(--font-sans);background:var(--bg);color:var(--text);line-height:1.6;min-height:100vh;display:flex;flex-direction:column}
img,svg{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--accent);color:#fff}

/* ─── Typography ─── */
h1{font-size:clamp(2rem,5vw,3.5rem);font-weight:800;line-height:1.15;letter-spacing:-0.02em}
h2{font-size:clamp(1.5rem,3vw,2rem);font-weight:700;line-height:1.25}
h3{font-size:clamp(1.1rem,2vw,1.5rem);font-weight:600}
h4{font-size:1.1rem;font-weight:600}
p{margin-bottom:0.75rem}
.text-sm{font-size:0.875rem}
.text-xs{font-size:0.75rem}
.text-xl{font-size:1.25rem}
.text-2xl{font-size:1.5rem}
.text-3xl{font-size:1.875rem}
.text-4xl{font-size:2.25rem}
.text-6xl{font-size:3.75rem}
.font-bold{font-weight:700}
.font-extrabold{font-weight:800}
.font-semibold{font-weight:600}
.text-center{text-align:center}
.leading-relaxed{line-height:1.75}
.tracking-tight{letter-spacing:-0.02em}
.uppercase{text-transform:uppercase}
.tracking-wider{letter-spacing:0.05em}
.whitespace-pre-wrap{white-space:pre-wrap}

/* ─── Layout ─── */
.max-w-2xl{max-width:42rem}
.max-w-4xl{max-width:56rem}
.max-w-5xl{max-width:var(--max-w)}
.max-w-6xl{max-width:72rem}
.mx-auto{margin-left:auto;margin-right:auto}
.px-4{padding-left:1rem;padding-right:1rem}
.py-4{padding-top:1rem;padding-bottom:1rem}
.py-8{padding-top:2rem;padding-bottom:2rem}
.py-12{padding-top:3rem;padding-bottom:3rem}
.p-4{padding:1rem}
.p-6{padding:1.5rem}
.p-8{padding:2rem}
.mb-2{margin-bottom:0.5rem}
.mb-3{margin-bottom:0.75rem}
.mb-4{margin-bottom:1rem}
.mb-6{margin-bottom:1.5rem}
.mb-8{margin-bottom:2rem}
.mt-2{margin-top:0.5rem}
.mt-3{margin-top:0.75rem}
.mt-4{margin-top:1rem}
.mt-12{margin-top:3rem}
.mr-2{margin-right:0.5rem}
.space-y-4>*+*{margin-top:1rem}
.space-y-6>*+*{margin-top:1.5rem}
.space-y-8>*+*{margin-top:2rem}
.space-y-12>*+*{margin-top:3rem}
.space-x-2>*+*{margin-left:0.5rem}
.gap-4{gap:1rem}
.gap-6{gap:1.5rem}
.gap-8{gap:2rem}
.flex{display:flex}
.inline-flex{display:inline-flex}
.grid{display:grid}
.hidden{display:none}
.inline-block{display:inline-block}
.flex-1{flex:1}
.flex-col{flex-direction:column}
.flex-wrap{flex-wrap:wrap}
.items-center{align-items:center}
.items-start{align-items:flex-start}
.justify-center{justify-content:center}
.justify-between{justify-content:space-between}
.min-h-screen{min-height:100vh}
.w-full{width:100%}
.relative{position:relative}
.absolute{position:absolute}
.top-4{top:1rem}
.right-4{right:1rem}
.overflow-x-auto{overflow-x:auto}
.rounded-lg{border-radius:0.5rem}
.rounded-xl{border-radius:0.75rem}
.rounded-2xl{border-radius:1rem}
.rounded-full{border-radius:9999px}
.border{border:1px solid var(--border)}
.border-b{border-bottom:1px solid var(--border)}
.border-t{border-top:1px solid var(--border)}
.border-gray-100{border-color:#F3F4F6}
.border-gray-200{border-color:var(--border)}
.border-gray-300{border-color:#D1D5DB}
.shadow-sm{box-shadow:var(--shadow)}
.shadow-inner{box-shadow:inset 0 2px 4px rgba(0,0,0,.1)}
.pb-6{padding-bottom:1.5rem}
.pt-6{padding-top:1.5rem}
.pb-4{padding-bottom:1rem}

/* ─── Colors ─── */
.text-white{color:#fff}
.text-gray-100{color:#F3F4F6}
.text-gray-300{color:#D1D5DB}
.text-gray-400{color:#9CA3AF}
.text-gray-500{color:#6B7280}
.text-gray-600{color:#4B5563}
.text-gray-700{color:#374151}
.text-gray-800{color:#1F2937}
.text-gray-900{color:#111418}
.text-accent{color:var(--accent)}
.text-accent2{color:var(--accent-2)}
.text-code{color:var(--code-text)}
.bg-white{background:#fff}
.bg-gray-50{background:var(--bg)}
.bg-gray-100{background:var(--bg-alt)}
.bg-gray-200{background:#E5E7EB}
.bg-gray-800{background:var(--bg-alt)}
.bg-gray-900{background:var(--bg-card)}
.bg-gray-950{background:var(--bg)}
.bg-code{background:var(--code-bg)}
.bg-accent{background:var(--accent)}

/* ─── Dark Mode Overrides ─── */
.dark .text-white{color:var(--text)}
.dark .text-gray-100{color:var(--text)}
.dark .text-gray-300{color:var(--text-secondary)}
.dark .text-gray-400{color:var(--text-secondary)}
.dark .text-gray-500{color:var(--text-secondary)}
.dark .text-gray-600{color:var(--text-secondary)}
.dark .text-gray-700{color:var(--text)}
.dark .text-gray-800{color:var(--text)}
.dark .text-gray-900{color:var(--text)}
.dark .bg-white{background:var(--bg-card)}
.dark .bg-gray-50{background:var(--bg)}
.dark .bg-gray-100{background:var(--bg-alt)}
.dark .bg-gray-200{background:var(--bg-card)}
.dark .border-gray-100{border-color:var(--border)}
.dark .border-gray-200{border-color:var(--border)}
.dark .border-gray-300{border-color:var(--border)}

/* ─── Navigation ─── */
.navbar{background:var(--bg-card);border-bottom:1px solid var(--border);position:sticky;top:0;z-index:50;backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.dark .navbar{background:rgba(19,23,32,.85)}
.navbar-inner{max-width:var(--max-w);margin:0 auto;padding:0.75rem 1rem;display:flex;align-items:center;justify-content:space-between}
.navbar-logo{font-size:1.5rem;font-weight:800;color:var(--accent);letter-spacing:-0.03em}
.navbar-links{display:flex;gap:1.5rem;align-items:center;font-size:0.875rem}
.navbar-links a{color:var(--text-secondary);transition:color var(--transition)}
.navbar-links a:hover{color:var(--accent)}
.navbar-links .dark-toggle{background:none;border:1px solid var(--border);border-radius:0.5rem;padding:0.25rem 0.5rem;cursor:pointer;font-size:0.75rem;color:var(--text-secondary);transition:all var(--transition)}
.navbar-links .dark-toggle:hover{border-color:var(--accent);color:var(--accent)}

/* ─── Hero ─── */
.hero{text-align:center;padding:4rem 1rem 3rem;max-width:var(--max-w);margin:0 auto}
.hero h1{font-size:clamp(2rem,6vw,3.5rem);margin-bottom:1rem;line-height:1.15}
.hero h1 .highlight{color:var(--accent)}
.hero p{font-size:1.15rem;color:var(--text-secondary);max-width:36rem;margin:0 auto 2rem}
.hero .hero-badges{display:flex;flex-wrap:wrap;gap:0.5rem;justify-content:center;margin-top:1.5rem}
.hero .badge{display:inline-flex;align-items:center;gap:0.35rem;background:var(--bg-alt);border:1px solid var(--border);border-radius:9999px;padding:0.25rem 0.75rem;font-size:0.75rem;font-weight:600;color:var(--text-secondary)}
.hero .badge .icon{width:1rem;height:1rem}

/* ─── Cards ─── */
.card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow);transition:box-shadow var(--transition),border-color var(--transition)}
.card:hover{box-shadow:0 4px 12px rgba(0,0,0,.1);border-color:var(--accent)}
.card-icon{margin-bottom:1rem;display:flex;align-items:center;justify-content:center;width:3rem;height:3rem;border-radius:0.75rem;background:var(--bg-alt);color:var(--accent);font-size:1.5rem}
.card h3{font-size:1.1rem;margin-bottom:0.5rem}
.card p{font-size:0.9rem;color:var(--text-secondary);margin-bottom:0}
.card-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(16rem,1fr));gap:1rem}

/* ─── Buttons ─── */
.btn-primary{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.75rem 1.5rem;background:var(--accent);color:#fff;border:none;border-radius:0.5rem;font-weight:600;font-size:0.95rem;cursor:pointer;transition:all var(--transition);text-decoration:none}
.btn-primary:hover{background:var(--accent-hover);transform:translateY(-1px);box-shadow:0 4px 12px rgba(75,70,250,.3)}
.btn-primary:active{transform:translateY(0)}
.btn-secondary{display:inline-flex;align-items:center;justify-content:center;gap:0.5rem;padding:0.75rem 1.5rem;background:var(--bg-alt);color:var(--text);border:1px solid var(--border);border-radius:0.5rem;font-weight:600;font-size:0.95rem;cursor:pointer;transition:all var(--transition);text-decoration:none}
.btn-secondary:hover{border-color:var(--accent);color:var(--accent)}
.btn-icon{padding:0.5rem 0.75rem;font-size:0.8rem}
.btn-sm{padding:0.35rem 0.75rem;font-size:0.8rem}

/* ─── Form Elements ─── */
.form-group{margin-bottom:1rem}
.form-group label{display:block;font-size:0.75rem;font-weight:700;text-transform:uppercase;letter-spacing:0.05em;color:var(--text-secondary);margin-bottom:0.35rem}
select,input[type="text"],input[type="email"],input[type="url"],textarea{width:100%;padding:0.7rem 0.85rem;background:var(--bg);border:1px solid var(--border);border-radius:0.5rem;font-size:0.9rem;color:var(--text);transition:border-color var(--transition),box-shadow var(--transition);outline:none}
select:focus,input:focus,textarea:focus{border-color:var(--accent);box-shadow:0 0 0 3px rgba(75,70,250,.15)}
select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' fill='%236B7280' viewBox='0 0 16 16'%3E%3Cpath d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 0.75rem center;padding-right:2.25rem;cursor:pointer}
textarea{resize:vertical;min-height:6rem}
.toolbar{display:flex;flex-wrap:wrap;gap:0.5rem;margin-bottom:1rem}

/* ─── Generator Workspace ─── */
.workspace{max-width:var(--max-w);margin:2rem auto;padding:0 1rem}
.workspace-grid{display:grid;grid-template-columns:1fr;gap:1.5rem}
@media(min-width:1024px){.workspace-grid{grid-template-columns:1fr 1fr}}
.form-panel{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.5rem;box-shadow:var(--shadow)}
.form-panel-header{font-size:1.1rem;font-weight:700;margin-bottom:1.25rem;padding-bottom:0.75rem;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:0.5rem}
.output-panel{background:var(--code-bg);color:var(--code-text);border-radius:var(--radius);padding:1.5rem;min-height:200px;display:flex;flex-direction:column}
.output-panel-header{display:flex;align-items:center;justify-content:space-between;margin-bottom:1rem}
.output-panel-title{font-size:0.75rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--accent-2);font-weight:700}
.output-panel-actions{display:flex;gap:0.5rem}
.output-code{flex:1;font-family:var(--font-mono);font-size:0.85rem;white-space:pre-wrap;word-break:break-word;line-height:1.65;overflow-x:auto;min-height:5rem}

/* ─── AdSense Slots ─── */
.adsense-slot{text-align:center;margin:1.5rem 0;overflow:hidden;background:var(--bg-alt);border:1px dashed var(--border);border-radius:var(--radius)}
.adsense-slot::before{content:"Advertisement";display:block;font-size:0.65rem;text-transform:uppercase;letter-spacing:0.1em;color:var(--text-secondary);padding:0.5rem 0 0}
.adsense-slot ins{display:block;min-height:90px}

/* ─── FAQ Accordion ─── */
.faq-list{display:flex;flex-direction:column;gap:0.75rem}
.faq-item{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;background:var(--bg-card)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:1rem 1.25rem;background:none;border:none;font-weight:600;font-size:0.95rem;cursor:pointer;color:var(--text);text-align:left}
.faq-question::after{content:"+";font-size:1.25rem;font-weight:300;color:var(--accent);transition:transform var(--transition)}
.faq-item.open .faq-question::after{content:"−"}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-answer{max-height:500px}
.faq-answer-inner{padding:0 1.25rem 1.25rem;font-size:0.9rem;color:var(--text-secondary);line-height:1.7}

details{border:1px solid var(--border);border-radius:var(--radius);overflow:hidden}
details summary{padding:1rem 1.25rem;font-weight:600;cursor:pointer;list-style:none;display:flex;align-items:center;justify-content:space-between}
details summary::-webkit-details-marker{display:none}
details summary::after{content:"+";font-size:1.25rem;color:var(--accent)}
details[open] summary::after{content:"−"}
details .faq-answer-inner{padding:0 1.25rem 1.25rem;font-size:0.9rem;color:var(--text-secondary);line-height:1.7}

/* ─── Stats / Feature Highlight ─── */
.stats-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(10rem,1fr));gap:1rem;text-align:center}
.stat-value{font-size:2rem;font-weight:800;color:var(--accent);line-height:1}
.stat-label{font-size:0.8rem;color:var(--text-secondary);margin-top:0.25rem}

/* ─── Footer ─── */
.site-footer{background:var(--bg-card);border-top:1px solid var(--border);margin-top:auto;padding:2.5rem 1rem 1.5rem}
.footer-inner{max-width:var(--max-w);margin:0 auto}
.footer-links{display:flex;flex-wrap:wrap;gap:2rem;justify-content:center;font-size:0.85rem;margin-bottom:1.5rem}
.footer-links a{color:var(--text-secondary);transition:color var(--transition)}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{text-align:center;font-size:0.75rem;color:var(--text-secondary);padding-top:1rem;border-top:1px solid var(--border)}
.footer-af{font-size:0.75rem;color:var(--text-secondary);text-align:center;margin-top:0.5rem}

/* ─── Toggle Switch (Dark Mode) ─── */
.toggle-switch{position:relative;display:inline-block;width:44px;height:24px}
.toggle-switch input{opacity:0;width:0;height:0}
.toggle-slider{position:absolute;cursor:pointer;top:0;left:0;right:0;bottom:0;background:var(--border);border-radius:24px;transition:background var(--transition)}
.toggle-slider::before{content:"";position:absolute;height:18px;width:18px;left:3px;bottom:3px;background:#fff;border-radius:50%;transition:transform var(--transition);box-shadow:0 1px 3px rgba(0,0,0,.2)}
.toggle-switch input:checked+.toggle-slider{background:var(--accent)}
.toggle-switch input:checked+.toggle-slider::before{transform:translateX(20px)}
.toggle-switch input:focus-visible+.toggle-slider{box-shadow:0 0 0 3px rgba(75,70,250,.3)}

/* ─── Toasts / Notifications ─── */
.toast{position:fixed;bottom:1.5rem;right:1.5rem;background:var(--code-bg);color:#fff;padding:0.75rem 1.25rem;border-radius:0.5rem;font-size:0.85rem;box-shadow:0 4px 12px rgba(0,0,0,.3);z-index:100;animation:slideUp .3s ease;max-width:calc(100vw - 3rem)}
.toast.success{border-left:3px solid var(--success)}
.toast.info{border-left:3px solid var(--accent)}
@keyframes slideUp{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}

/* ─── Breadcrumbs ─── */
.breadcrumb{font-size:0.85rem;color:var(--text-secondary)}
.breadcrumb a{color:var(--text-secondary);transition:color var(--transition)}
.breadcrumb a:hover{color:var(--accent)}

/* ─── Section ─── */
.section{padding:3rem 1rem}
.section-inner{max-width:var(--max-w);margin:0 auto}
.section-title{font-size:clamp(1.5rem,3vw,2rem);margin-bottom:0.5rem}
.section-sub{font-size:1rem;color:var(--text-secondary);margin-bottom:2rem}

/* ─── Industry Grid ─── */
.industry-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(8rem,1fr));gap:0.5rem}
.industry-tag{display:block;padding:0.5rem 0.75rem;background:var(--bg-alt);border:1px solid var(--border);border-radius:0.5rem;font-size:0.8rem;text-align:center;color:var(--text-secondary);transition:all var(--transition)}
.industry-tag:hover{border-color:var(--accent);color:var(--accent);background:rgba(75,70,250,.05)}

/* ─── Affiliate Cards ─── */
.affiliate-grid{display:grid;grid-template-columns:repeat(auto-fit,minmax(18rem,1fr));gap:1rem}
.affiliate-card{background:var(--bg-card);border:1px solid var(--border);border-radius:var(--radius);padding:1.25rem;box-shadow:var(--shadow);display:flex;flex-direction:column;gap:0.75rem}
.affiliate-card h4{font-size:1rem}
.affiliate-card p{font-size:0.85rem;color:var(--text-secondary);margin:0}
.affiliate-card .badge-affiliate{display:inline-block;font-size:0.65rem;font-weight:600;text-transform:uppercase;letter-spacing:0.05em;background:var(--accent-2);color:#fff;padding:0.15rem 0.5rem;border-radius:0.25rem;align-self:flex-start}

/* ─── Responsive ─── */
@media(max-width:768px){
  .hero{padding:2.5rem 1rem 2rem}
  .navbar-links{gap:0.75rem}
  .navbar-links a:not(.dark-toggle){display:none}
  .card-grid{grid-template-columns:1fr}
  .workspace-grid{grid-template-columns:1fr}
  .section{padding:2rem 1rem}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .affiliate-grid{grid-template-columns:1fr}
}

@media(max-width:480px){
  h1{font-size:1.75rem}
  .hero h1{font-size:1.75rem}
  .btn-primary,.btn-secondary{width:100%}
  .toolbar{flex-direction:column}
  .industry-grid{grid-template-columns:repeat(auto-fill,minmax(6rem,1fr))}
  .stats-grid{grid-template-columns:1fr}
}

/* ─── Animations ─── */
.fade-in{animation:fadeIn .5s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.spin{animation:spin 1s linear infinite}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

/* ─── Accessibility ─── */
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.skip-link{position:absolute;top:-100px;left:1rem;background:var(--accent);color:#fff;padding:0.5rem 1rem;border-radius:0 0 0.5rem 0.5rem;z-index:200;font-weight:600;transition:top .2s}
.skip-link:focus{top:0}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
[aria-hidden="true"]{display:none!important}

/* ─── Print ─── */
@media print{
  .navbar,.adsense-slot,.toolbar,.btn-primary,.btn-secondary,.site-footer{display:none!important}
  body{background:#fff;color:#000;font-size:12pt}
  .card{border:1px solid #ccc;box-shadow:none;page-break-inside:avoid}
  .output-code{background:#fff;color:#000;border:1px solid #ccc}
}

/* ─── Group/Select Pairs ─── */
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:0.75rem}
@media(max-width:480px){.form-row{grid-template-columns:1fr}}

.vstack{display:flex;flex-direction:column;gap:0.75rem}