/* === Reset & Base === */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --indigo:#1E0A3C;
  --white:#FFFFFF;
  --violet:#7B61FF;
  --orange:#FF6B35;
  --light:#F5F3FF;
  --gray-600:#6B7280;
  --gray-300:#D1D5DB;
  --radius:12px;
  --font-heading:'Space Grotesk',sans-serif;
  --font-body:'IBM Plex Sans',sans-serif;
}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-body);
  color:var(--indigo);
  background:var(--white);
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--violet);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3,h4,h5,h6{font-family:var(--font-heading);line-height:1.2;font-weight:700}
ul{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}

/* === Utility === */
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section--light{background:var(--light)}
.section--dark{background:var(--indigo);color:var(--white)}
.text-center{text-align:center}
.btn{
  display:inline-block;
  padding:12px 28px;
  border-radius:var(--radius);
  font-weight:600;
  font-family:var(--font-heading);
  cursor:pointer;
  border:none;
  transition:transform .2s,box-shadow .2s;
  font-size:1rem;
  text-decoration:none;
}
.btn:hover{transform:translateY(-2px);box-shadow:0 6px 20px rgba(123,97,255,.3);text-decoration:none}
.btn--violet{background:var(--violet);color:var(--white)}
.btn--orange{background:var(--orange);color:var(--white)}
.btn--outline{background:transparent;border:2px solid var(--violet);color:var(--violet)}
.btn--outline:hover{background:var(--violet);color:var(--white)}
.btn--white{background:var(--white);color:var(--indigo)}
.tag{
  display:inline-block;
  padding:4px 12px;
  border-radius:20px;
  font-size:.75rem;
  font-weight:600;
  text-transform:uppercase;
  letter-spacing:.5px;
}
.tag--ai{background:#EDE9FE;color:#5B21B6}
.tag--devops{background:#DBEAFE;color:#1D4ED8}
.tag--cloud{background:#D1FAE5;color:#065F46}
.tag--security{background:#FEE2E2;color:#991B1B}
.tag--frontend{background:#FEF3C7;color:#92400E}
.tag--data{background:#E0E7FF;color:#3730A3}

/* === Header === */
.header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(30,10,60,.08);
}
.header .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  font-family:var(--font-heading);
  font-size:1.5rem;
  font-weight:700;
  color:var(--indigo);
  text-decoration:none;
}
.logo span{color:var(--violet)}
.nav{display:flex;align-items:center;gap:32px}
.nav a{
  color:var(--indigo);
  font-weight:500;
  font-size:.95rem;
  text-decoration:none;
  transition:color .2s;
}
.nav a:hover{color:var(--violet)}
.nav-cta{
  background:var(--violet);
  color:var(--white) !important;
  padding:10px 22px;
  border-radius:var(--radius);
  font-weight:600;
}
.nav-cta:hover{
  background:#6A4FE6;
  color:var(--white) !important;
  text-decoration:none;
}
.hamburger{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding:4px;
}
.hamburger span{
  display:block;
  width:24px;
  height:2px;
  background:var(--indigo);
  border-radius:2px;
  transition:transform .3s,opacity .3s;
}
.hamburger.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.hamburger.active span:nth-child(2){opacity:0}
.hamburger.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* === Hero === */
.hero{
  position:relative;
  min-height:600px;
  display:flex;
  align-items:center;
  background:var(--indigo);
  color:var(--white);
  overflow:hidden;
}
.hero__bg{
  position:absolute;
  inset:0;
  background-size:cover;
  background-position:center;
  opacity:.35;
}
.hero__content{
  position:relative;
  z-index:2;
  max-width:700px;
}
.hero h1{
  font-size:3.5rem;
  margin-bottom:20px;
  line-height:1.1;
}
.hero p{font-size:1.2rem;margin-bottom:32px;opacity:.9}
.search-bar{
  display:flex;
  background:var(--white);
  border-radius:var(--radius);
  overflow:hidden;
  max-width:560px;
  box-shadow:0 8px 30px rgba(0,0,0,.2);
}
.search-bar input{
  flex:1;
  padding:16px 20px;
  border:none;
  outline:none;
  font-size:1rem;
  color:var(--indigo);
}
.search-bar button{
  padding:16px 28px;
  background:var(--violet);
  color:var(--white);
  border:none;
  font-weight:600;
  cursor:pointer;
  font-family:var(--font-heading);
  white-space:nowrap;
}
.search-bar button:hover{background:#6A4FE6}

/* === Event Cards === */
.events-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(280px,1fr));
  gap:24px;
}
.event-card{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid rgba(30,10,60,.08);
  padding:24px;
  transition:transform .2s,box-shadow .2s;
  display:flex;
  flex-direction:column;
}
.event-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(123,97,255,.12);
}
.event-card__date{
  font-size:.85rem;
  color:var(--violet);
  font-weight:600;
  margin-bottom:8px;
}
.event-card__title{
  font-family:var(--font-heading);
  font-size:1.15rem;
  font-weight:700;
  margin-bottom:8px;
  color:var(--indigo);
}
.event-card__title a{color:inherit;text-decoration:none}
.event-card__title a:hover{color:var(--violet)}
.event-card__location{
  font-size:.9rem;
  color:var(--gray-600);
  margin-bottom:12px;
}
.event-card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  padding-top:12px;
  border-top:1px solid rgba(30,10,60,.06);
}
.event-card__attendees{font-size:.85rem;color:var(--gray-600)}
.event-card__price{font-size:.85rem;font-weight:600;color:var(--indigo)}

/* === How It Works === */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:40px;
  margin-top:48px;
}
.step{text-align:center}
.step__number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:64px;
  height:64px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--violet),var(--orange));
  color:var(--white);
  font-family:var(--font-heading);
  font-size:1.5rem;
  font-weight:700;
  margin-bottom:20px;
}
.step h3{margin-bottom:8px;font-size:1.2rem}
.step p{color:var(--gray-600);font-size:.95rem}

/* === Stats === */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
  text-align:center;
}
.stat__number{
  font-family:var(--font-heading);
  font-size:2.5rem;
  font-weight:700;
  color:var(--violet);
}
.section--dark .stat__number{color:var(--orange)}
.stat__label{font-size:.95rem;color:var(--gray-600);margin-top:4px}
.section--dark .stat__label{color:rgba(255,255,255,.7)}

/* === Image Band === */
.image-band{
  height:400px;
  background-size:cover;
  background-position:center;
  position:relative;
}
.image-band::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(135deg,rgba(30,10,60,.6),rgba(123,97,255,.4));
}
.image-band__content{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:center;
  height:100%;
  text-align:center;
  color:var(--white);
}
.image-band__content h2{font-size:2.5rem;max-width:600px}

/* === Newsletter === */
.newsletter{
  max-width:560px;
  margin:0 auto;
  text-align:center;
}
.newsletter h2{margin-bottom:12px;font-size:2rem}
.newsletter p{color:var(--gray-600);margin-bottom:24px}
.newsletter-form{
  display:flex;
  gap:12px;
}
.newsletter-form input{
  flex:1;
  padding:14px 18px;
  border:2px solid var(--gray-300);
  border-radius:var(--radius);
  outline:none;
  transition:border-color .2s;
}
.newsletter-form input:focus{border-color:var(--violet)}
.newsletter-form button{white-space:nowrap}

/* === Filter Tabs === */
.filter-tabs{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.filter-tab{
  padding:8px 20px;
  border-radius:20px;
  border:2px solid var(--gray-300);
  background:var(--white);
  color:var(--indigo);
  font-weight:600;
  cursor:pointer;
  transition:all .2s;
  font-size:.9rem;
}
.filter-tab:hover,.filter-tab.active{
  border-color:var(--violet);
  background:var(--violet);
  color:var(--white);
}

/* === Host / Features === */
.features-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:32px;
  margin-top:40px;
}
.feature-card{
  padding:32px;
  border-radius:var(--radius);
  background:var(--light);
  border:1px solid rgba(30,10,60,.06);
}
.feature-card__icon{
  font-size:2rem;
  margin-bottom:16px;
}
.feature-card h3{margin-bottom:8px;font-size:1.15rem}
.feature-card p{color:var(--gray-600);font-size:.95rem}

/* === Forms === */
.form-group{margin-bottom:20px}
.form-group label{
  display:block;
  font-weight:600;
  margin-bottom:6px;
  font-size:.95rem;
}
.form-group input,
.form-group select,
.form-group textarea{
  width:100%;
  padding:12px 16px;
  border:2px solid var(--gray-300);
  border-radius:var(--radius);
  outline:none;
  transition:border-color .2s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus{
  border-color:var(--violet);
}
.form-card{
  background:var(--white);
  border-radius:var(--radius);
  padding:40px;
  box-shadow:0 4px 24px rgba(30,10,60,.08);
  max-width:560px;
  margin:0 auto;
}
.form-success{
  display:none;
  text-align:center;
  padding:40px 20px;
}
.form-success.show{display:block}
.form-success .checkmark{
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--violet);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.form-success .checkmark svg{width:32px;height:32px;stroke:var(--white)}
.form-success h3{margin-bottom:8px;font-size:1.4rem}
.form-success p{color:var(--gray-600)}
form.hidden{display:none}

/* === Pricing === */
.pricing-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  align-items:start;
}
.pricing-card{
  background:var(--white);
  border-radius:var(--radius);
  border:2px solid rgba(30,10,60,.08);
  padding:40px 32px;
  text-align:center;
  transition:transform .2s,box-shadow .2s;
}
.pricing-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(123,97,255,.12);
}
.pricing-card--featured{
  border-color:var(--violet);
  position:relative;
}
.pricing-card--featured::before{
  content:'Most Popular';
  position:absolute;
  top:-14px;
  left:50%;
  transform:translateX(-50%);
  background:var(--violet);
  color:var(--white);
  padding:4px 16px;
  border-radius:20px;
  font-size:.8rem;
  font-weight:600;
}
.pricing-card__name{
  font-family:var(--font-heading);
  font-size:1.2rem;
  font-weight:700;
  margin-bottom:8px;
}
.pricing-card__price{
  font-family:var(--font-heading);
  font-size:2.8rem;
  font-weight:700;
  color:var(--violet);
  margin-bottom:4px;
}
.pricing-card__price small{font-size:.9rem;font-weight:400;color:var(--gray-600)}
.pricing-card__desc{
  color:var(--gray-600);
  font-size:.9rem;
  margin-bottom:24px;
}
.pricing-card ul{
  text-align:left;
  margin-bottom:28px;
}
.pricing-card li{
  padding:8px 0;
  border-bottom:1px solid rgba(30,10,60,.06);
  font-size:.95rem;
  padding-left:24px;
  position:relative;
}
.pricing-card li::before{
  content:'';
  position:absolute;
  left:0;
  top:12px;
  width:14px;
  height:14px;
  border-radius:50%;
  background:var(--violet);
  opacity:.2;
}

/* === Blog === */
.blog-grid{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(340px,1fr));
  gap:28px;
}
.blog-card{
  background:var(--white);
  border-radius:var(--radius);
  border:1px solid rgba(30,10,60,.08);
  overflow:hidden;
  transition:transform .2s,box-shadow .2s;
}
.blog-card:hover{
  transform:translateY(-4px);
  box-shadow:0 12px 32px rgba(123,97,255,.12);
}
.blog-card__body{padding:24px}
.blog-card__date{font-size:.85rem;color:var(--gray-600);margin-bottom:8px}
.blog-card__title{
  font-family:var(--font-heading);
  font-size:1.2rem;
  font-weight:700;
  margin-bottom:8px;
}
.blog-card__title a{color:var(--indigo);text-decoration:none}
.blog-card__title a:hover{color:var(--violet)}
.blog-card__excerpt{font-size:.95rem;color:var(--gray-600);line-height:1.5}

/* === Blog Post === */
.post{max-width:720px;margin:0 auto}
.post__meta{
  color:var(--gray-600);
  font-size:.9rem;
  margin-bottom:32px;
}
.post h1{font-size:2.5rem;margin-bottom:12px}
.post h2{font-size:1.5rem;margin:32px 0 12px}
.post p{margin-bottom:16px;font-size:1.05rem;line-height:1.7;color:#374151}
.post ul,.post ol{margin-bottom:16px;padding-left:24px}
.post li{margin-bottom:8px;font-size:1.05rem;line-height:1.7;color:#374151;list-style:disc}
.post ol li{list-style:decimal}
.post blockquote{
  border-left:4px solid var(--violet);
  padding:16px 24px;
  margin:24px 0;
  background:var(--light);
  border-radius:0 var(--radius) var(--radius) 0;
  font-style:italic;
  color:#374151;
}

/* === Footer === */
.footer{
  background:var(--indigo);
  color:rgba(255,255,255,.7);
  padding:60px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  margin-bottom:40px;
}
.footer h4{
  color:var(--white);
  font-family:var(--font-heading);
  margin-bottom:16px;
  font-size:1rem;
}
.footer a{color:rgba(255,255,255,.7);text-decoration:none}
.footer a:hover{color:var(--white)}
.footer ul li{margin-bottom:10px}
.footer__desc{font-size:.9rem;line-height:1.6;margin-top:12px}
.footer__bottom{
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  font-size:.85rem;
}

/* === 404 === */
.error-page{
  min-height:60vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
}
.error-page h1{font-size:6rem;color:var(--violet)}
.error-page h2{font-size:1.5rem;margin-bottom:16px}
.error-page p{color:var(--gray-600);margin-bottom:24px}

/* === Page Header === */
.page-header{
  background:var(--indigo);
  color:var(--white);
  padding:60px 0;
  text-align:center;
}
.page-header h1{font-size:2.5rem;margin-bottom:12px}
.page-header p{opacity:.8;font-size:1.1rem;max-width:600px;margin:0 auto}

/* === Two Column === */
.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
}

/* === Responsive === */
@media(max-width:900px){
  .nav{
    display:none;
    flex-direction:column;
    position:absolute;
    top:72px;
    left:0;
    right:0;
    background:var(--white);
    padding:24px;
    gap:16px;
    border-bottom:1px solid var(--gray-300);
    box-shadow:0 8px 24px rgba(0,0,0,.1);
  }
  .nav.open{display:flex}
  .hamburger{display:flex}
  .hero h1{font-size:2.4rem}
  .steps{grid-template-columns:1fr}
  .stats{grid-template-columns:repeat(2,1fr)}
  .pricing-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer__bottom{flex-direction:column;gap:8px}
  .two-col{grid-template-columns:1fr}
  .image-band{height:280px}
  .search-bar{flex-direction:column}
  .newsletter-form{flex-direction:column}
}
@media(max-width:600px){
  .section{padding:48px 0}
  .hero{min-height:480px}
  .hero h1{font-size:2rem}
  .events-grid{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}