:root{
  --primary:#6366F1;
  --primary-dark:#4F46E5;
  --bg:#020617;
  --card:#0F172A;
  --border:#1E293B;
  --text:#CBD5E1;
  --heading:#F8FAFC;
}

*{box-sizing:border-box}

body{
  margin:0;
  font-family:Inter,system-ui;
  background:var(--bg);
  color:var(--text);
  padding-bottom:80px;
}

a{text-decoration:none;color:inherit}

.container{
  max-width:1200px;
  margin:auto;
  padding:80px 20px;
}

/* HEADER */
header, .sticky-header {
  position: sticky !important;
  top: 0;
  background: rgba(2,6,23,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
  z-index: 999;
}

.nav{
  max-width:1200px;
  margin:auto;
  padding:18px 20px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
}

.nav strong{color:white;font-size:20px}

.nav-links{
  display:flex;
  align-items:center;
  gap:18px;
}

.menu-toggle{
  display:none;
  font-size:26px;
  cursor:pointer;
  color:white;
}

/* BUTTON */
.btn{
  background:var(--primary);
  color:white;
  padding:12px 22px;
  border-radius:10px;
  font-weight:600;
  border:none;
  min-height:48px;
  cursor:pointer;
}

.btn:hover{background:var(--primary-dark)}

/* HERO */
.hero{
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:60px;
  align-items:center;
}

.hero h1{
  font-size:clamp(28px,5vw,54px);
  line-height:1.15;
  color:var(--heading);
}

.hero p{font-size:18px;margin:24px 0}

/* CARD */
.card{
  background:linear-gradient(180deg,#020617,#0F172A);
  border:1px solid var(--border);
  border-radius:18px;
  padding:28px;
  text-align:center;
}

/* PLAYGROUND */
.playground{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.playground textarea{
  width:100%;
  height:120px;
  background:#020617;
  border:1px solid var(--border);
  border-radius:12px;
  padding:14px;
  color:white;
  resize:none;
}

.output{
  padding:14px;
  background:#020617;
  border:1px dashed var(--border);
  border-radius:12px;
  font-size:14px;
}

/* SECTIONS */
.section-title{
  text-align:center;
  max-width:640px;
  margin:auto;
}

.section-title h2{
  font-size:clamp(26px,4vw,40px);
  color:white;
}

.card-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:50px;
}

.who-is-card-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:50px;
}

@media(max-width:1024px){
  .hero{grid-template-columns:1fr}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .who-is-card-grid{grid-template-columns:repeat(2,1fr)}
}

@media(max-width:768px){
  header, .sticky-header {
    position: sticky !important;
    top: 0;
    border-bottom: 1px solid var(--border);
    padding-bottom: 0;
  }

  .menu-toggle{display:block}

  .nav-links{
    display:none;
    flex-direction:column;
    width:100%;
    margin-top:14px;
  }

  .nav-links.active{display:flex}

  .btn{width:100%}

  .card-grid{grid-template-columns:1fr}

  .mobile-cta{
    display:flex;
    position:fixed;
    bottom:0;
    left:0;
    width:100%;
    background:#020617;
    border-top:1px solid var(--border);
    padding:14px;
    justify-content:center;
    z-index:100;
  }

  .mobile-cta a{
    background:var(--primary);
    color:white;
    padding:14px 22px;
    border-radius:12px;
    font-weight:600;
    width:100%;
    text-align:center;
  }
}

@media(max-width:600px){
  .who-is-card-grid{grid-template-columns:1fr}
  .who-is-card-grid .card{margin-bottom:18px}
}

/* existing styles stay */

.btn-ghost{
  background:transparent;
  border:1px solid var(--border);
  color:white;
}

/* MODAL */
.modal{
  display:none;
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.7);
  align-items:center;
  justify-content:center;
  z-index:200;
}

.modal-box{
  background:#020617;
  border:1px solid var(--border);
  padding:30px;
  border-radius:16px;
  width:100%;
  max-width:360px;
  display:flex;
  flex-direction:column;
  gap:14px;
}

.modal-box h3{
  color:white;
  margin:0 0 10px;
}

.modal-box input{
  padding:12px;
  border-radius:10px;
  border:1px solid var(--border);
  background:#020617;
  color:white;
}
/* PROMPT COPY BOX */
.prompt-box{
  position:relative;
  margin-bottom:24px;
}

.prompt-box pre{
  background:#020617;
  border:1px solid var(--border);
  border-radius:14px;
  padding:18px;
  color:#E5E7EB;
  font-size:14px;
  line-height:1.6;
  overflow:auto;
}

/* COPY BUTTON */
.copy-btn{
  position:absolute;
  top:14px;
  right:14px;
  background:#020617;
  border:1px solid var(--border);
  color:#CBD5E1;
  font-size:13px;
  padding:6px 12px;
  border-radius:999px;
  cursor:pointer;
  transition:.2s ease;
}

.copy-btn:hover{
  background:var(--primary);
  color:white;
  border-color:var(--primary);
}

.copy-btn.copied{
  background:#16A34A;
  border-color:#16A34A;
  color:white;
}
/* FAQ ACCORDION */
.faq-item{
  border-bottom:1px solid var(--border);
}

.faq-question{
  width:100%;
  background:none;
  border:none;
  color:white;
  text-align:left;
  font-size:16px;
  font-weight:600;
  padding:18px 0;
  display:flex;
  justify-content:space-between;
  align-items:center;
  cursor:pointer;
}

.faq-question:hover{
  color:var(--primary);
}

.faq-icon{
  font-size:20px;
  transition:transform .25s ease;
}

.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .3s ease;
}

.faq-answer p{
  padding-bottom:18px;
  color:var(--text);
  line-height:1.6;
}

.faq-item.active .faq-answer{
  max-height:300px;
}

.faq-item.active .faq-icon{
  transform:rotate(45deg);
}
.nav-cta{
  margin-left:16px;
  padding:10px 18px;
  border-radius:10px;
  font-weight:600;
  background:var(--primary);
  color:white !important;
}

.nav-cta:hover{
  opacity:.9;
}
/* FOOTER */
.site-footer {
  background: #0F172A;
  color: #CBD5E1;
  border-top: 1px solid var(--border);
  padding: 48px 0 0 0;
  margin-top: 60px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr; /* Brand, left col, right col */
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 32px 20px;
}
.footer-grid.footer-row {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr 1fr;
  gap: 32px;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px 18px 20px;
}
.footer-brand-col {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  gap: 10px;
  grid-column: 1;
}
.footer-logo {
  font-size: 1.5rem;
  color: #fff;
  margin-bottom: 8px;
}
.footer-desc {
  font-size: 1rem;
  color: #94A3B8;
  margin-bottom: 0;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col h4 {
  color: #fff;
  font-size: 1.1rem;
  margin-bottom: 8px;
  font-weight: 700;
}
.footer-col a {
  color: #CBD5E1;
  text-decoration: none;
  margin-bottom: 2px;
  transition: color 0.2s;
}
.footer-col a:hover {
  color: var(--primary);
}
.footer-social-center {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin: 18px 0 0 0;
}
.footer-social-center a {
  font-size: 1.3rem;
  color: #CBD5E1;
  background: #1E293B;
  border-radius: 50%;
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, color 0.2s;
}
.footer-social-center a:hover {
  background: var(--primary);
  color: #fff;
}
.footer-bottom {
  background: #020617;
  text-align: center;
  padding: 18px 0 12px 0;
  color: #64748B;
  font-size: 0.95rem;
  border-top: 1px solid var(--border);
}
@media (max-width: 1100px) {
  .footer-grid.footer-row {
    grid-template-columns: 1fr 1fr 1fr;
  }
  .footer-brand-col {
    grid-column: 1 / span 3;
    margin-bottom: 18px;
  }
}
@media (max-width: 900px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }
  .footer-cols-2x2 {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .footer-grid.footer-row {
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .footer-brand-col {
    grid-column: 1 / span 2;
    margin-bottom: 14px;
  }
}
@media (max-width: 600px) {
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 0 10px 24px 10px;
  }
  .footer-cols-2x2 {
    grid-template-columns: 1fr;
    gap: 12px;
  }
  .site-footer {
    padding: 32px 0 0 0;
  }
  .footer-grid.footer-row {
    grid-template-columns: 1fr;
    gap: 12px;
    padding: 0 10px 12px 10px;
  }
  .footer-brand-col {
    grid-column: 1;
    margin-bottom: 10px;
  }
  .footer-social-center {
    margin: 14px 0 0 0;
  }
}
/* RESPONSIVE */
@media(max-width:900px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
  }
}

@media(max-width:520px){
  .footer-grid{
    grid-template-columns:1fr;
  }
}
/* BLOG CONTENT UI */
.blog-container{
  max-width:800px;
  margin:auto;
}

.blog-header h1{
  font-size:clamp(30px,5vw,42px);
  line-height:1.2;
  margin-bottom:12px;
}

.blog-subtitle{
  font-size:18px;
  color:var(--text);
  margin-bottom:40px;
}

.blog-content{
  font-size:16px;
  line-height:1.8;
  color:var(--text);
}

.blog-content h2{
  margin-top:48px;
  margin-bottom:12px;
  font-size:24px;
  color:white;
}

.blog-content ul{
  padding-left:20px;
  margin:16px 0;
}

.blog-content ul li{
  margin-bottom:8px;
}

/* INTRO PARAGRAPH */
.blog-intro{
  font-size:18px;
  line-height:1.8;
  margin-bottom:32px;
}

/* PROMPT CALLOUT */
.blog-callout{
  background:#020617;
  border:1px solid var(--border);
  border-radius:14px;
  padding:20px;
  margin:32px 0;
}

.blog-callout strong{
  display:block;
  margin-bottom:10px;
  color:white;
}

.blog-callout pre{
  margin:0;
  font-size:14px;
  color:#E5E7EB;
}

/* INLINE CTA */
.blog-cta{
  margin:60px 0;
  padding:32px;
  border-radius:16px;
  background:linear-gradient(135deg,#020617,#0F172A);
  text-align:center;
}

.blog-cta p{
  margin-bottom:14px;
  font-size:18px;
  color:white;
}
/* STICKY BLOG TITLE */
.sticky-title{
  position:sticky;
  top:80px; /* height of main header */
  z-index:5;
  background:var(--bg);
  padding:20px 0 24px;
  margin-bottom:40px;
  border-bottom:1px solid var(--border);
}

/* Title styling */
.blog-header h1{
  margin:0;
}

.blog-subtitle{
  margin-top:8px;
}
@media (max-width:768px){
  .sticky-title{
    position:static;
    border-bottom:none;
    padding-bottom:0;
  }
}