/* =========================================
   IT GREEN · ĐẤM GOOGLE ADS — Cosmic AI v2
   (UX/UI inspired by Vibe Ads futuristic theme)
   ========================================= */

:root{
  --c-space:#050816;
  --c-navy:#0B1F3A;
  --c-card:#132B4A;
  --c-orange:#FF6B2C;
  --c-violet:#6C4DFF;
  --c-magenta:#EC4899;
  --c-green:#22C55E;
  --c-green-it:#34A853;
  --c-blue:#38BDF8;
  --c-yellow:#FBBF24;
  --c-white:#F8F6F2;
  --c-soft:#CBD5E1;
  --c-muted:#94A3B8;
  --c-glass:rgba(255,255,255,.08);
  --c-border:rgba(255,255,255,.14);
}

*{-webkit-tap-highlight-color:transparent;box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Be Vietnam Pro','Inter',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--c-space);
  color:var(--c-white);
  font-weight:400;line-height:1.6;
  overflow-x:hidden;-webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}
.mono{font-family:ui-monospace,'JetBrains Mono','Roboto Mono',monospace}

/* ===== Cosmic backdrop ===== */
.cosmic-bg{
  position:fixed;inset:0;z-index:-3;
  background:
    radial-gradient(ellipse at 20% 10%, rgba(108,77,255,.18) 0%, transparent 45%),
    radial-gradient(ellipse at 80% 30%, rgba(236,72,153,.14) 0%, transparent 45%),
    radial-gradient(ellipse at 50% 80%, rgba(255,107,44,.12) 0%, transparent 50%),
    radial-gradient(ellipse at 90% 90%, rgba(52,168,83,.12) 0%, transparent 50%),
    linear-gradient(180deg,#050816 0%, #0B1F3A 100%);
}
.cosmic-grid{
  position:fixed;inset:0;z-index:-2;
  background-image:
    linear-gradient(rgba(108,77,255,.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(108,77,255,.04) 1px,transparent 1px);
  background-size:80px 80px;
  -webkit-mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  mask-image:radial-gradient(ellipse at center,#000 30%,transparent 75%);
  pointer-events:none;
}
.particles{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.particles span{
  position:absolute;width:4px;height:4px;border-radius:50%;
  background:radial-gradient(circle,var(--c-blue) 0%,transparent 70%);
  opacity:.6;animation:floatParticle linear infinite;filter:blur(.5px);
}
@keyframes floatParticle{
  0%{transform:translateY(100vh) translateX(0);opacity:0}
  10%{opacity:.8}90%{opacity:.4}
  100%{transform:translateY(-10vh) translateX(40px);opacity:0}
}

/* ===== Glass ===== */
.glass{
  background:var(--c-glass);
  backdrop-filter:blur(18px) saturate(140%);
  -webkit-backdrop-filter:blur(18px) saturate(140%);
  border:1px solid var(--c-border);border-radius:16px;
}

/* ===== Gradient text ===== */
.text-gradient-ai{background:linear-gradient(135deg,#6C4DFF 0%,#EC4899 50%,#FF6B2C 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.text-gradient-purple{background:linear-gradient(135deg,#6C4DFF 0%,#EC4899 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.text-gradient-orange{background:linear-gradient(135deg,#FF6B2C 0%,#FBBF24 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.text-gradient-green{background:linear-gradient(135deg,#34A853 0%,#22C55E 60%,#38BDF8 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}

/* ===== Layout ===== */
.container-wide{max-width:1240px;margin:0 auto;padding:0 24px}
@media(max-width:640px){.container-wide{padding:0 16px}}
.section{padding:90px 0;position:relative}
@media(max-width:768px){.section{padding:56px 0}}
.grid{display:grid}
.text-center{text-align:center}
.mx-auto{margin-left:auto;margin-right:auto}
.max-w-3xl{max-width:768px}
.max-w-xl{max-width:600px}
.mb-4{margin-bottom:16px}.mb-6{margin-bottom:24px}.mb-8{margin-bottom:32px}.mb-12{margin-bottom:48px}
.mt-8{margin-top:32px}.mt-10{margin-top:40px}

/* ===== Buttons ===== */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#FF6B2C 0%,#F43F5E 100%);
  color:#fff;font-weight:700;padding:14px 28px;border-radius:14px;
  font-size:15px;letter-spacing:.2px;border:1px solid rgba(255,107,44,.5);
  box-shadow:0 8px 30px rgba(255,107,44,.35),inset 0 1px 0 rgba(255,255,255,.2);
  transition:all .25s ease;cursor:pointer;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(255,107,44,.45),inset 0 1px 0 rgba(255,255,255,.3)}
.btn-green{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:linear-gradient(135deg,#34A853 0%,#1E8E3E 100%);
  color:#fff;font-weight:700;padding:14px 28px;border-radius:14px;
  font-size:15px;border:1px solid rgba(52,168,83,.5);
  box-shadow:0 8px 30px rgba(52,168,83,.35),inset 0 1px 0 rgba(255,255,255,.2);
  transition:all .25s ease;cursor:pointer;
}
.btn-green:hover{transform:translateY(-2px);box-shadow:0 14px 40px rgba(52,168,83,.5)}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:rgba(255,255,255,.06);color:var(--c-white);font-weight:600;
  padding:14px 26px;border-radius:14px;font-size:15px;border:1px solid rgba(255,255,255,.18);
  backdrop-filter:blur(10px);transition:all .25s ease;cursor:pointer;
}
.btn-secondary:hover{background:rgba(255,255,255,.10);border-color:rgba(255,255,255,.30);transform:translateY(-2px)}
.btn-block{display:flex;width:100%}
.btn-lg{padding:18px 32px;font-size:17px}
.pulse-cta{animation:pulseGlow 2.4s infinite}
@keyframes pulseGlow{0%,100%{box-shadow:0 8px 30px rgba(255,107,44,.35)}50%{box-shadow:0 8px 38px 4px rgba(255,107,44,.6)}}

/* ===== Header ===== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:50;padding:16px 0;transition:all .3s ease}
.site-header.scrolled{background:rgba(5,8,22,.78);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);border-bottom:1px solid var(--c-border);padding:10px 0}
.site-header .container-wide{display:flex;align-items:center;justify-content:space-between}
.brand{display:flex;align-items:center;gap:12px}
.brand .logo-box{width:42px;height:42px;border-radius:12px;overflow:hidden;display:flex;align-items:center;justify-content:center;background:linear-gradient(135deg,#34A853,#1E8E3E,#FF6B2C);box-shadow:0 8px 24px rgba(52,168,83,.4)}
.brand .logo-box img{width:100%;height:100%;object-fit:cover}
.brand-logo{font-size:20px;font-weight:900;letter-spacing:1px;color:#fff;line-height:1.1}
.brand .tag{font-size:11px;color:var(--c-orange);font-weight:600;margin-top:-1px}
.header-cta{display:none}
@media(min-width:600px){.header-cta{display:inline-flex}}

/* ===== Hero ===== */
.hero{position:relative;padding-top:128px;padding-bottom:64px;overflow:hidden}
@media(min-width:768px){.hero{padding-top:160px;padding-bottom:80px}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
@media(min-width:1024px){.hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;padding:8px 16px;
  background:rgba(108,77,255,.12);border:1px solid rgba(108,77,255,.35);
  border-radius:100px;font-size:13px;font-weight:600;color:#C4B5FD;margin-bottom:24px;
}
.hero-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--c-magenta);box-shadow:0 0 10px var(--c-magenta);animation:pulseDot 1.5s infinite}
@keyframes pulseDot{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.6;transform:scale(1.25)}}
.hero h1{font-weight:900;letter-spacing:-1px;line-height:1.05;color:#fff;font-size:clamp(38px,8vw,72px);margin-bottom:22px}
.hero h1 .hl{background:linear-gradient(135deg,#34A853 0%,#22C55E 50%,#FF6B2C 100%);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 30px rgba(52,168,83,.45));display:inline-block}
.hero .sub{font-size:clamp(16px,4.5vw,20px);color:var(--c-soft);max-width:560px;margin-bottom:28px}
.hero .sub b{color:#fff}
.hero-cta-row{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
@media(min-width:520px){.hero-cta-row{flex-direction:row}}
.hero-checks{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:14px;color:var(--c-muted)}
.hero-checks span i{color:var(--c-green-it);margin-right:5px}
.hero-org{margin-top:22px;font-size:13px;color:var(--c-muted)}
.hero-org b{color:var(--c-green-it)}

/* Hero visual / holo frame */
.holo-frame{position:relative;border-radius:30px;padding:26px;background:radial-gradient(ellipse at top,rgba(52,168,83,.22),transparent 60%),radial-gradient(ellipse at bottom,rgba(255,107,44,.18),transparent 60%)}
.holo-frame::before{content:'';position:absolute;inset:0;border-radius:30px;background:linear-gradient(135deg,#34A853,#EC4899,#FF6B2C,#38BDF8) border-box;-webkit-mask:linear-gradient(#000,#000) padding-box,linear-gradient(#000,#000);-webkit-mask-composite:xor;mask-composite:exclude;padding:1px;opacity:.6;pointer-events:none}
.holo-img-wrap{position:relative;border-radius:24px;overflow:hidden;background:linear-gradient(180deg,rgba(11,31,58,.6),rgba(5,8,22,.95));border:1px solid rgba(255,255,255,.08);aspect-ratio:3/4}
.holo-img-wrap img{width:100%;height:100%;object-fit:cover;object-position:center top;filter:drop-shadow(0 0 30px rgba(52,168,83,.3))}
.holo-img-wrap.logo-mode{display:flex;align-items:center;justify-content:center;aspect-ratio:3/4;padding:32px}
.holo-img-wrap.logo-mode img{width:auto;height:auto;max-width:78%;max-height:78%;object-fit:contain}
.rim-light{position:absolute;inset:-20%;background:radial-gradient(ellipse 40% 50% at 20% 50%,rgba(52,168,83,.5),transparent 60%),radial-gradient(ellipse 40% 50% at 80% 50%,rgba(255,107,44,.4),transparent 60%),radial-gradient(ellipse 60% 40% at 50% 100%,rgba(56,189,248,.3),transparent 60%);filter:blur(20px);pointer-events:none;z-index:-1}

/* Floating stat chips */
.stat-chip{
  position:absolute;display:inline-flex;align-items:center;gap:8px;padding:10px 14px;
  background:rgba(19,43,74,.78);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.14);border-radius:14px;font-size:13px;font-weight:600;color:#fff;
  box-shadow:0 10px 30px rgba(0,0,0,.4);white-space:nowrap;
}
.stat-chip .icon{width:28px;height:28px;border-radius:8px;display:inline-flex;align-items:center;justify-content:center;flex-shrink:0}
.stat-chip .lbl{font-size:10px;opacity:.7;font-weight:500}
.float-card{animation:floatY 6s ease-in-out infinite}
.float-card-1{animation-delay:1s}.float-card-2{animation-delay:2s}.float-card-3{animation-delay:3s}
@keyframes floatY{0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@media(max-width:1024px){.stat-chip{display:none}}

/* dashboard mock */
.dash-mock{position:absolute;inset:0;pointer-events:none;opacity:.5;z-index:-1}

/* ===== Marquee ===== */
.marquee{overflow:hidden;white-space:nowrap;border-top:1px solid var(--c-border);border-bottom:1px solid var(--c-border);background:rgba(5,8,22,.5);padding:14px 0;margin-top:40px}
.marquee-track{display:inline-block;animation:scrollX 22s linear infinite}
.marquee-track span{font-weight:800;font-size:15px;letter-spacing:2px;text-transform:uppercase;color:#fff;padding:0 22px;font-family:ui-monospace,monospace}
.marquee-track span i{font-style:normal;padding:0 6px;background:linear-gradient(135deg,#34A853,#FF6B2C);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
@keyframes scrollX{from{transform:translateX(0)}to{transform:translateX(-50%)}}

/* ===== Section heading ===== */
.accent-line{display:inline-block;width:60px;height:4px;border-radius:4px;background:linear-gradient(90deg,#34A853,#FF6B2C);margin-bottom:16px}
.section-title{font-weight:900;font-size:clamp(28px,4.5vw,46px);line-height:1.15;letter-spacing:-.5px;color:#fff}
.section-sub{font-size:clamp(15px,4vw,18px);color:var(--c-soft);margin-top:14px}

/* ===== card-3d ===== */
.card-3d{
  background:linear-gradient(180deg,rgba(255,255,255,.06) 0%,rgba(255,255,255,.02) 100%);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.10);border-radius:20px;padding:26px;
  position:relative;overflow:hidden;
  transition:transform .35s cubic-bezier(.2,.8,.2,1),box-shadow .35s ease,border-color .3s;
}
.card-3d::before{content:'';position:absolute;inset:0;border-radius:20px;padding:1px;background:linear-gradient(135deg,rgba(52,168,83,.35),transparent 40%,rgba(255,107,44,.35));-webkit-mask:linear-gradient(#000,#000) content-box,linear-gradient(#000,#000);-webkit-mask-composite:xor;mask-composite:exclude;pointer-events:none;opacity:0;transition:opacity .3s}
.card-3d:hover{transform:translateY(-6px) scale(1.01);border-color:rgba(255,255,255,.22);box-shadow:0 30px 70px -20px rgba(52,168,83,.4)}
.card-3d:hover::before{opacity:1}
.code-tag{position:absolute;top:14px;right:16px;font-size:11px;letter-spacing:1px;font-family:ui-monospace,monospace;color:rgba(52,168,83,.7)}
.icon-box{width:52px;height:52px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px}
.card-3d h3{color:#fff;font-size:19px;font-weight:700;margin-bottom:6px}
.card-3d p{font-size:15px;color:var(--c-soft);line-height:1.6}

/* grids */
.grid-stats{grid-template-columns:repeat(2,1fr);gap:16px}
@media(min-width:768px){.grid-stats{grid-template-columns:repeat(4,1fr);gap:20px}}
.grid-2{grid-template-columns:1fr;gap:18px}
.grid-3{grid-template-columns:1fr;gap:18px}
.grid-4{grid-template-columns:1fr;gap:18px}
@media(min-width:640px){.grid-2{grid-template-columns:1fr 1fr}.grid-3{grid-template-columns:repeat(3,1fr)}.grid-4{grid-template-columns:1fr 1fr}}
@media(min-width:1024px){.grid-4{grid-template-columns:repeat(4,1fr)}}

.stat-num{font-weight:900;font-size:clamp(34px,4vw,52px);line-height:1;letter-spacing:-1px}

/* ===== Speaker ===== */
.speaker .photo{width:100%;aspect-ratio:1/1;border-radius:16px;overflow:hidden;margin-bottom:16px;border:1px solid var(--c-border);background:var(--c-space);position:relative}
.speaker .photo img{width:100%;height:100%;object-fit:cover}
.speaker .photo.logo-pad{display:flex;align-items:center;justify-content:center;padding:18px}
.speaker .photo.logo-pad img{width:auto;height:auto;max-width:80%;max-height:80%;object-fit:contain}
.avatar-ph{width:100%;height:100%;display:flex;align-items:center;justify-content:center;background:radial-gradient(circle at 50% 40%,#1b2a44,#050816);border:1px solid rgba(52,168,83,.5)}
.avatar-ph span{font-weight:900;font-size:72px;background:linear-gradient(135deg,#34A853,#38BDF8);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;text-shadow:0 0 26px rgba(52,168,83,.4)}
.speaker h3{font-size:20px}
.speaker .role{font-size:14px;color:var(--c-muted);line-height:1.5;margin-top:4px}

/* ===== Pipeline / module ===== */
.pipe-step{position:relative;display:flex;align-items:flex-start;gap:16px;padding:20px 22px;border-radius:18px;background:rgba(19,43,74,.5);border:1px solid rgba(255,255,255,.10);transition:transform .25s ease,box-shadow .25s ease,border-color .25s}
.pipe-step:hover{transform:translateX(6px);box-shadow:0 10px 30px rgba(52,168,83,.2);border-color:rgba(52,168,83,.4)}
.pipe-num{width:46px;height:46px;border-radius:14px;background:linear-gradient(135deg,#34A853,#FF6B2C);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;color:#fff;flex-shrink:0;box-shadow:0 8px 20px rgba(52,168,83,.4)}
.pipe-step .body{flex:1}
.pipe-step .code-tag{position:static;display:block;margin-bottom:6px}
.pipe-step .txt{color:#fff;font-weight:700;font-size:16px;line-height:1.45}
.pipe-step .host{margin-top:8px;font-size:13px;color:var(--c-yellow);font-family:ui-monospace,monospace}
.pipe-step .host b{color:#fff}

/* ===== Event info ===== */
.event-card .icon-box{margin-bottom:14px}
.event-card h3{font-family:ui-monospace,monospace;letter-spacing:1px;font-size:15px;color:var(--c-green-it);margin-bottom:8px}
.event-card p{font-size:16px;color:#fff}

/* ===== Form ===== */
.form-shell{max-width:600px;margin:0 auto}
.form-card{position:relative;background:linear-gradient(180deg,rgba(108,77,255,.12) 0%,rgba(19,43,74,.5) 100%);border-radius:28px;padding:40px 30px;border:1px solid rgba(52,168,83,.3);overflow:hidden}
.form-card::before{content:'';position:absolute;top:-50%;left:-50%;width:200%;height:200%;background:conic-gradient(from 0deg,transparent 0deg,rgba(52,168,83,.16) 30deg,transparent 60deg);animation:spin 14s linear infinite;pointer-events:none}
@keyframes spin{to{transform:rotate(360deg)}}
.form-card>*{position:relative;z-index:1}
.field{margin-bottom:18px}
.field label{display:block;margin-bottom:8px;font-weight:600;font-size:14px;color:var(--c-soft)}
.field input,.field select{width:100%;padding:15px 16px;border-radius:12px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.10);color:#fff;font-size:16px;font-family:inherit;transition:border-color .2s,background .2s,box-shadow .2s;outline:none}
.field input::placeholder{color:rgba(203,213,225,.5)}
.field input:focus,.field select:focus{border-color:rgba(52,168,83,.7);background:rgba(255,255,255,.07);box-shadow:0 0 0 3px rgba(52,168,83,.18)}
.field select{appearance:none;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 20 20' fill='%2334A853'%3E%3Cpath fill-rule='evenodd' d='M5.293 7.293a1 1 0 011.414 0L10 10.586l3.293-3.293a1 1 0 111.414 1.414l-4 4a1 1 0 01-1.414 0l-4-4a1 1 0 010-1.414z' clip-rule='evenodd'/%3E%3C/svg%3E");background-position:right 14px center;background-repeat:no-repeat;background-size:18px;padding-right:42px}
.field select option{background:#0B1F3A;color:#fff}
.form-note{text-align:center;font-size:13px;color:var(--c-muted);margin-top:16px}
.form-error{display:none;text-align:center;font-size:14px;color:#FCA5A5;margin-top:12px;background:rgba(234,67,53,.12);border:1px solid rgba(234,67,53,.35);border-radius:10px;padding:10px 12px}
.form-error.show{display:block;animation:fadeUp .3s ease}
#submitBtn.loading{opacity:.75;pointer-events:none}
#submitBtn.loading .btn-label::after{content:" ...";}
.form-success{display:none;text-align:center;padding:26px 10px}
.form-success.show{display:block;animation:fadeUp .5s ease}
@keyframes fadeUp{from{opacity:0;transform:translateY(14px)}to{opacity:1;transform:none}}
.form-success .big{font-size:52px;margin-bottom:10px}
.form-success h3{font-size:24px;margin-bottom:8px}

/* ===== FAQ accordion ===== */
.faq-item{border-bottom:1px solid var(--c-border)}
.faq-q{display:flex;align-items:center;justify-content:space-between;cursor:pointer;padding:22px 0;font-size:17px;font-weight:600;color:#fff;gap:16px}
.faq-q:hover{color:var(--c-orange)}
.faq-q .chev{transition:transform .3s;flex-shrink:0;color:var(--c-orange)}
.faq-item.open .faq-q .chev{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;color:var(--c-soft);font-size:15px;line-height:1.7}
.faq-item.open .faq-a{max-height:400px;padding-bottom:22px}

/* ===== CTA band ===== */
.cta-band{position:relative;overflow:hidden}
.cta-inner{position:relative;background:linear-gradient(135deg,rgba(52,168,83,.14),rgba(255,107,44,.10));border:1px solid var(--c-border);border-radius:28px;padding:48px 28px;text-align:center}
.cta-inner h2{font-size:clamp(24px,5.5vw,38px);font-weight:900;color:#fff;margin-bottom:18px}

/* ===== Footer ===== */
.site-footer{background:#03050D;border-top:1px solid var(--c-border);padding:56px 0 90px;text-align:center}
.site-footer .brand{justify-content:center;margin-bottom:10px}
.footer-slogan{color:var(--c-muted);font-size:14px;margin-bottom:22px}
.footer-bottom{color:var(--c-muted);font-size:13px;font-family:ui-monospace,monospace;margin-top:22px}
@media(min-width:768px){.site-footer{padding-bottom:56px}}

/* ===== Reveal ===== */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1)}
.reveal.in{opacity:1;transform:none}

/* ===== Sticky mobile CTA ===== */
.mobile-cta{display:none}
@media(max-width:768px){
  .mobile-cta{display:flex;position:fixed;left:14px;right:14px;bottom:14px;z-index:60;padding-bottom:env(safe-area-inset-bottom)}
  .mobile-cta .btn-primary{flex:1}
  body{padding-bottom:84px}
}

@media(prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  .marquee-track,.float-card,.pulse-cta,.form-card::before,.hero-badge::before{animation:none}
}