/* --- ARIA SYSTEM NAV DROPDOWN, LOGO & MOBILE CSS --- */
.logo { display: flex !important; align-items: center; gap: 12px; text-decoration: none; }
.logo-hex { 
  width: 34px; 
  height: 34px; 
  background: var(--red, #E8192C) !important; 
  display: flex !important; 
  align-items: center; 
  justify-content: center; 
  font-weight: 800; 
  font-size: 13px; 
  color: #fff !important; 
  clip-path: polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%); 
}
.logo-name { 
  font-weight: 700; 
  font-size: 17px; 
  color: var(--white, var(--white-dim, #F5F5F7)) !important; 
  letter-spacing: -.3px; 
}
.logo-name span { color: var(--red, #E8192C) !important; }

.drop { position: relative; }
.drop:hover .drop-panel { opacity: 1; pointer-events: all; transform: translateY(0); }
.drop-panel { 
  position: absolute; 
  top: 100%; 
  left: -16px; 
  padding-top: 14px; 
  min-width: 280px; 
  opacity: 0; 
  pointer-events: none; 
  transform: translateY(-8px); 
  transition: all .2s; 
  z-index: 999; 
}
.drop-inner { 
  background: var(--b3, var(--black-3, #161618)); 
  border: 1px solid var(--border, rgba(245,245,247,0.08)); 
  border-radius: 12px; 
  padding: 8px; 
  box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}
.drop-inner a { 
  display: flex !important; 
  align-items: center; 
  gap: 12px; 
  padding: 12px 16px; 
  border-radius: 8px; 
  color: var(--w60, var(--white-dim, rgba(245,245,247,0.6))) !important; 
  text-decoration: none; 
  transition: all .2s; 
  margin-bottom: 4px; 
  line-height: 1.4;
}
.drop-inner a:last-child { margin-bottom: 0; }
.drop-inner a:hover { 
  background: var(--w04, var(--white-faint, rgba(245,245,247,0.04))) !important; 
  color: var(--white, #F5F5F7) !important; 
}
.drop-inner a .di { font-size: 18px; flex-shrink: 0; }
.drop-inner a div { display: flex; flex-direction: column; text-align: left; }

/* Mobile Menu Hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  justify-content: space-between;
  width: 22px;
  height: 16px;
  cursor: pointer;
  z-index: 1001;
  margin-left: 12px;
}
.menu-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background-color: var(--white, #F5F5F7);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.menu-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.menu-toggle.active span:nth-child(2) {
  opacity: 0;
}
.menu-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

@media(max-width: 1024px) {
  .menu-toggle {
    display: flex !important;
  }
  .nav-links {
    display: flex !important;
    flex-direction: column;
    position: fixed;
    top: 0;
    right: -100% !important;
    width: 280px;
    height: 100vh;
    background: rgba(7, 7, 8, 0.98) !important;
    backdrop-filter: blur(24px);
    border-left: 1px solid var(--border, rgba(245, 245, 247, 0.08));
    padding: 100px 32px 40px !important;
    gap: 24px;
    transition: right 0.4s cubic-bezier(0.16, 1, 0.3, 1) !important;
    z-index: 998;
    align-items: flex-start;
    box-shadow: -10px 0 30px rgba(0,0,0,0.5);
  }
  .nav-links.active {
    right: 0 !important;
  }
  .nav-links .drop-panel {
    position: static !important;
    opacity: 1 !important;
    pointer-events: all !important;
    transform: none !important;
    display: none;
    min-width: 100%;
    padding-top: 10px;
    background: transparent !important;
  }
  .nav-links .drop.active .drop-panel {
    display: block !important;
  }
  .nav-links .drop-inner {
    background: rgba(245, 245, 247, 0.03) !important;
    border: none !important;
    padding: 0 !important;
    box-shadow: none !important;
  }
  .nav-links .drop-inner a {
    padding: 10px 0 !important;
    gap: 8px !important;
  }
}
@media(max-width: 640px) {
  .nav-cta .btn-ghost {
    display: none !important;
  }
}
/* --- END ARIA SYSTEM NAV DROPDOWN, LOGO & MOBILE CSS --- */




*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{background:var(--black);color:var(--white);font-family:var(--f);line-height:1.6;overflow-x:hidden}

/* NAV */
nav{position:fixed;top:0;left:0;right:0;z-index:200;display:flex;align-items:center;justify-content:space-between;padding:18px 60px;background:rgba(7,7,8,0.92);backdrop-filter:blur(24px);border-bottom:1px solid var(--border);transition:padding .3s}
.logo{display:flex;align-items:center;gap:12px;text-decoration:none}
.logo-hex{width:34px;height:34px;background:var(--red);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:13px;color:#fff;clip-path:polygon(50% 0%,100% 25%,100% 75%,50% 100%,0% 75%,0% 25%)}
.logo-name{font-weight:700;font-size:17px;color:var(--white);letter-spacing:-.3px}
.logo-name span{color:var(--red)}
.nav-links{display:flex;align-items:center;gap:28px;list-style:none}
.nav-links a{color:var(--w60);text-decoration:none;font-size:14px;transition:color .2s}
.nav-links a:hover,.nav-links a.active{color:var(--white)}
.nav-cta{display:flex;gap:10px;align-items:center}
.btn-ghost{padding:8px 16px;border:1px solid var(--border);border-radius:var(--r8);color:var(--w60);text-decoration:none;font-size:13px;font-weight:500;transition:all .2s}
.btn-ghost:hover{border-color:rgba(245,245,247,.2);color:var(--white)}
.btn-cta{padding:8px 18px;background:var(--red);border-radius:var(--r8);color:#fff;text-decoration:none;font-size:13px;font-weight:600;transition:background .2s}
.btn-cta:hover{background:var(--red-hover)}

/* HELPERS */
.lbl{font-family:var(--fm);font-size:11px;letter-spacing:3px;text-transform:uppercase;color:var(--red);margin-bottom:14px}
.h2{font-size:clamp(32px,3.5vw,52px);font-weight:800;line-height:1.08;letter-spacing:-2px}
.em{color:var(--red);font-style:normal}
.lead{font-size:17px;color:var(--w60);line-height:1.75;font-weight:300}
.section{padding:90px 60px}
.section-narrow{max-width:1100px;margin:0 auto}
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 40px; align-items: center; }
.btn-primary{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;background:var(--red);border-radius:var(--r12);color:#fff;text-decoration:none;font-size:15px;font-weight:600;transition:all .25s;box-shadow:0 0 40px rgba(232,25,44,.25)}
.btn-primary:hover{background:var(--red-hover);transform:translateY(-2px);box-shadow:0 10px 40px rgba(232,25,44,.35)}
.btn-outline{display:inline-flex;align-items:center;gap:10px;padding:15px 30px;border:1px solid var(--border);border-radius:var(--r12);color:var(--w60);text-decoration:none;font-size:15px;font-weight:500;transition:all .25s}
.btn-outline:hover{border-color:rgba(245,245,247,.2);color:var(--white);background:var(--w08)}

/* HERO */
.hero{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:130px 60px 80px;position:relative;overflow:hidden}
.hero-bg{position:absolute;inset:0;z-index:0}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(var(--w04) 1px,transparent 1px),linear-gradient(90deg,var(--w04) 1px,transparent 1px);background-size:60px 60px}
.glow-1{position:absolute;width:800px;height:800px;background:radial-gradient(circle,rgba(232,25,44,.08) 0%,transparent 65%);top:-200px;right:-100px;animation:gpulse 8s ease-in-out infinite}
.glow-2{position:absolute;width:600px;height:600px;background:radial-gradient(circle,rgba(255,215,0,.04) 0%,transparent 65%);bottom:0;left:100px;animation:gpulse2 11s ease-in-out infinite}
@keyframes gpulse{0%,100%{opacity:.5;transform:scale(1)}50%{opacity:1;transform:scale(1.1)}}
@keyframes gpulse2{0%,100%{opacity:.4;transform:scale(1)}50%{opacity:.8;transform:scale(1.15)}}
.hero-inner{display:grid;grid-template-columns:1fr 420px;gap:60px;align-items:center;position:relative;z-index:1;max-width:1100px;margin:0 auto;width:100%}
.hero-badge{display:inline-flex;align-items:center;gap:10px;padding:7px 16px;background:var(--w08);border:1px solid var(--border);border-radius:100px;font-family:var(--fm);font-size:11px;color:var(--red);letter-spacing:1.5px;text-transform:uppercase;margin-bottom:36px}
.hero-dot{width:7px;height:7px;background:var(--red);border-radius:50%;animation:blink 1.4s ease infinite}
@keyframes blink{0%,100%{opacity:1}50%{opacity:.2}}
.hero-h1{font-size:clamp(44px,5.5vw,80px);font-weight:900;line-height:1.0;letter-spacing:-3px;margin-bottom:28px}
.hero-h1 .l1{display:block;color:var(--white)}
.hero-h1 .l2{display:block;background:linear-gradient(135deg,var(--red) 0%,#ff6b7a 50%,#ff4d5e 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-h1 .l3{display:block;color:var(--white)}
.hero-sub{font-size:17px;color:var(--w60);max-width:520px;line-height:1.75;margin-bottom:44px;font-weight:300}
.hero-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap}

/* Hero Quick Facts */
.quick-facts{background:var(--b2);border:1px solid var(--border);border-radius:var(--r20);padding:32px;position:relative;overflow:hidden}
.quick-facts::before{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at top right,rgba(232,25,44,.06) 0%,transparent 60%);pointer-events:none}
.qf-title{font-family:var(--fm);font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--red);margin-bottom:20px}
.qf-item{display:flex;align-items:flex-start;gap:12px;padding:12px 0;border-bottom:1px solid var(--border)}
.qf-item:last-child{border-bottom:none;padding-bottom:0}
.qf-icon{font-size:18px;flex-shrink:0;margin-top:1px}
.qf-text strong{display:block;font-size:14px;color:var(--white);font-weight:600;margin-bottom:2px}
.qf-text span{font-size:12px;color:var(--w60)}
.qf-badge{display:inline-block;padding:2px 8px;background:var(--red-dim);border:1px solid rgba(232,25,44,.25);border-radius:100px;font-size:10px;font-weight:700;color:var(--red);font-family:var(--fm);letter-spacing:.5px;margin-top:4px}

/* TICKER */
.ticker{overflow:hidden;border-top:1px solid var(--border);border-bottom:1px solid var(--border);padding:14px 0;background:var(--b2)}
.ticker-track{display:flex;gap:0;white-space:nowrap;animation:ticker 28s linear infinite}
.ticker-item{display:flex;align-items:center;gap:12px;padding:0 28px;font-family:var(--fm);font-size:12px;color:var(--w60);letter-spacing:1px;text-transform:uppercase;flex-shrink:0}
.ticker-item .sep{color:var(--red)}
@keyframes ticker{0%{transform:translateX(0)}100%{transform:translateX(-50%)}}

/* WHO IS THIS FOR */
.who-section{background:var(--b2)}
.who-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:56px}
.who-card{background:var(--b3);border:1px solid var(--border);border-radius:var(--r20);padding:32px;transition:all .25s;position:relative;overflow:hidden}
.who-card:hover{border-color:rgba(232,25,44,.25);transform:translateY(-4px)}
.who-card::after{content:'';position:absolute;inset:0;background:radial-gradient(ellipse at bottom right,rgba(232,25,44,.04) 0%,transparent 60%);pointer-events:none;opacity:0;transition:opacity .3s}
.who-card:hover::after{opacity:1}
.who-icon{font-size:36px;margin-bottom:14px}
.who-name{font-size:18px;font-weight:700;color:var(--white);margin-bottom:10px}
.who-desc{font-size:14px;color:var(--w60);line-height:1.7}
.who-tag{display:inline-block;padding:3px 10px;background:var(--red-dim);border:1px solid rgba(232,25,44,.2);border-radius:100px;font-size:10px;color:var(--red);font-family:var(--fm);letter-spacing:1px;text-transform:uppercase;margin-top:12px}

/* CURRICULUM */
.curriculum{background:var(--black)}
.module-grid{display:flex;flex-direction:column;gap:12px;margin-top:56px}
.module{background:var(--b2);border:1px solid var(--border);border-radius:var(--r14);overflow:hidden;transition:all .25s}
.module:hover{border-color:rgba(232,25,44,.2)}
.module-header{display:flex;align-items:center;gap:20px;padding:24px 28px;cursor:pointer;user-select:none}
.module-num{font-size:40px;font-weight:900;color:rgba(232,25,44,.15);letter-spacing:-2px;line-height:1;flex-shrink:0;width:56px}
.module-info{flex:1}
.module-type{font-family:var(--fm);font-size:10px;letter-spacing:2px;text-transform:uppercase;margin-bottom:4px}
.mt-online{color:#34C759}
.mt-offline{color:var(--red)}
.module-title{font-size:18px;font-weight:700;color:var(--white);letter-spacing:-.3px}
.module-sub{font-size:13px;color:var(--w60);margin-top:4px}
.module-tag{flex-shrink:0;padding:5px 14px;border-radius:100px;font-size:11px;font-weight:600;font-family:var(--fm)}
.module-tag.online{background:rgba(52,199,89,.08);border:1px solid rgba(52,199,89,.2);color:#34C759}
.module-tag.offline{background:var(--red-dim);border:1px solid rgba(232,25,44,.25);color:var(--red)}
.module-body{padding:0 28px 24px 104px;display:none}
.module.open .module-body{display:block}
.lesson-list{list-style:none;display:flex;flex-direction:column;gap:8px}
.lesson-list li{font-size:13px;color:var(--w60);display:flex;align-items:flex-start;gap:10px;line-height:1.5}
.lesson-list li::before{content:'›';color:var(--red);font-weight:700;flex-shrink:0;font-size:16px;line-height:1.4}
.lesson-list li strong{color:var(--white)}
.module-tools{display:flex;flex-wrap:wrap;gap:7px;margin-top:16px}
.m-chip{padding:4px 12px;background:var(--w08);border:1px solid var(--border);border-radius:100px;font-size:11px;color:var(--w60);font-family:var(--fm)}
.m-chip.used{border-color:rgba(232,25,44,.2);color:var(--red);background:var(--red-dim)}

/* SCHEDULE TIMELINE */
.schedule-section{background:var(--b2)}
.schedule-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:0;border:1px solid var(--border);border-radius:var(--r20);overflow:hidden;margin-top:56px}
.sched-step{padding:32px 24px;border-right:1px solid var(--border);position:relative;overflow:hidden;transition:background .2s}
.sched-step:last-child{border-right:none}
.sched-step:hover{background:var(--w04)}
.sched-step.special{background:rgba(232,25,44,.03)}
.sched-step.special::before{content:'';position:absolute;top:0;left:0;right:0;height:2px;background:var(--red)}
.snum{font-size:11px;font-family:var(--fm);letter-spacing:2px;text-transform:uppercase;color:var(--red);margin-bottom:12px}
.sicon{font-size:24px;margin-bottom:10px}
.stitle{font-size:14px;font-weight:700;color:var(--white);margin-bottom:8px}
.sdesc{font-size:12px;color:var(--w60);line-height:1.65}
.stype{margin-top:12px;display:inline-flex;align-items:center;gap:5px;font-size:10px;font-family:var(--fm);letter-spacing:1px;text-transform:uppercase;padding:3px 10px;border-radius:100px}
.st-online{background:rgba(52,199,89,.08);border:1px solid rgba(52,199,89,.2);color:#34C759}
.st-offline{background:var(--red-dim);border:1px solid rgba(232,25,44,.25);color:var(--red)}

/* RESULTS - What you'll be able to do */
.results-section{background:var(--black)}
.results-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;margin-top:56px}
.result-card{background:var(--b2);border:1px solid var(--border);border-radius:var(--r20);padding:36px;transition:all .25s;position:relative;overflow:hidden}
.result-card:hover{border-color:rgba(232,25,44,.2);transform:translateY(-3px)}
.result-icon{font-size:36px;margin-bottom:16px}
.result-name{font-size:19px;font-weight:700;color:var(--white);margin-bottom:10px;letter-spacing:-.3px}
.result-desc{font-size:14px;color:var(--w60);line-height:1.7}
.result-num{position:absolute;bottom:-10px;right:20px;font-size:80px;font-weight:900;color:rgba(232,25,44,.04);line-height:1;letter-spacing:-4px}

/* PRICING */
.pricing{background:var(--b2)}
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:start;margin-top:72px}
.p-card{background:var(--b3);border:1px solid var(--border);border-radius:var(--r20);padding:40px;position:relative;transition:all .25s}
.p-card:hover{transform:translateY(-4px);box-shadow:0 24px 60px rgba(0,0,0,.3)}
.p-card.feat{border:2px solid var(--red);background:#0a0a0c;transform:scale(1.04);box-shadow:0 0 80px rgba(232,25,44,.15)}
.p-card.feat:hover{transform:scale(1.04) translateY(-4px)}
.p-badge{position:absolute;top:-16px;left:50%;transform:translateX(-50%);background:var(--red);padding:6px 20px;border-radius:100px;font-size:10px;font-weight:700;letter-spacing:1.5px;text-transform:uppercase;white-space:nowrap;color:white;box-shadow:0 4px 20px rgba(232,25,44,.4);z-index:1}
.p-tier{font-family:var(--fm);font-size:10px;letter-spacing:2px;text-transform:uppercase;color:var(--red);margin-bottom:10px}
.p-name{font-size:22px;font-weight:800;letter-spacing:-.6px;color:var(--white);margin-bottom:6px}
.p-price-block{margin-bottom:16px}
.p-price-main{font-size:40px;font-weight:800;letter-spacing:-2px;color:var(--white);line-height:1}
.p-price-unit{font-size:14px;font-weight:500;color:var(--w60);margin-top:4px;font-family:var(--fm)}
.p-desc{font-size:13px;color:var(--w60);margin-bottom:24px;line-height:1.6}
.p-div{height:1px;background:var(--border);margin-bottom:24px}
.p-feats{list-style:none;display:flex;flex-direction:column;gap:10px;margin-bottom:28px}
.p-feats li{font-size:13px;color:var(--w60);display:flex;align-items:flex-start;gap:9px;line-height:1.5}
.p-feats li::before{content:'✓';color:var(--red);font-weight:700;flex-shrink:0;margin-top:1px}
.p-btn{display:block;text-align:center;padding:14px;border-radius:12px;font-size:14px;font-weight:600;text-decoration:none;transition:all .2s;font-family:var(--f)}
.p-btn.out{border:1px solid var(--border);color:var(--white)}.p-btn.out:hover{background:var(--w08)}
.p-btn.sol{background:var(--red);color:white}.p-btn.sol:hover{background:var(--red-hover)}
.p-highlight{display:flex;align-items:center;gap:8px;padding:10px 14px;background:rgba(52,199,89,.06);border:1px solid rgba(52,199,89,.15);border-radius:var(--r8);font-size:12px;color:#34C759;font-weight:600;margin-bottom:16px}
.p-note{text-align:center;font-size:12px;color:var(--w30);margin-top:20px;font-style:italic}

/* FAQ */
.faq-section{background:var(--black)}
.faq-list{display:flex;flex-direction:column;gap:10px;margin-top:56px;max-width:800px;margin-left:auto;margin-right:auto}
.faq-item{background:var(--b2);border:1px solid var(--border);border-radius:var(--r14);overflow:hidden;transition:border-color .2s}
.faq-item:hover{border-color:rgba(232,25,44,.2)}
.faq-q{display:flex;align-items:center;justify-content:space-between;padding:20px 24px;cursor:pointer;gap:16px}
.faq-q-text{font-size:15px;font-weight:600;color:var(--white)}
.faq-arrow{font-size:18px;color:var(--red);flex-shrink:0;transition:transform .25s}
.faq-item.open .faq-arrow{transform:rotate(180deg)}
.faq-a{font-size:14px;color:var(--w60);line-height:1.75;padding:0 24px 20px;display:none}
.faq-item.open .faq-a{display:block}

/* CTA */
.cta-banner{background:var(--b3);padding:90px 60px;text-align:center;border-top:1px solid var(--border);position:relative;overflow:hidden}
.cta-glow{position:absolute;width:700px;height:350px;background:radial-gradient(ellipse,rgba(232,25,44,.07) 0%,transparent 70%);top:50%;left:50%;transform:translate(-50%,-50%);pointer-events:none}
.cta-inner{position:relative;z-index:1}
.cta-btns{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;margin-top:36px}

/* FOOTER */
.site-footer{background:var(--black);border-top:1px solid var(--border);padding:70px 60px 36px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:60px;margin-bottom:60px}
.footer-brand-desc{font-size:14px;color:var(--w60);line-height:1.8;margin:16px 0 20px}
.footer-contact a{display:flex;align-items:center;gap:8px;color:var(--w60);text-decoration:none;font-size:13px;margin-bottom:9px;transition:color .2s}
.footer-contact a:hover{color:var(--white)}
.footer-col-title{font-weight:700;font-size:13px;color:var(--white);letter-spacing:.5px;text-transform:uppercase;margin-bottom:20px;font-family:var(--fm)}
.footer-col a{display:block;color:var(--w60);text-decoration:none;font-size:13px;margin-bottom:11px;transition:color .2s}
.footer-col a:hover{color:var(--white)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;padding-top:32px;border-top:1px solid var(--border)}
.footer-copy{font-size:12px;color:var(--w30)}
.footer-legal{display:flex;gap:24px}
.footer-legal a{font-size:12px;color:var(--w30);text-decoration:none}
.footer-legal a:hover{color:var(--w60)}

/* RESPONSIVE */
@media(max-width:1024px){
  nav{padding:14px 20px}.nav-links{display:none}
  .section{padding:60px 20px}
  .hero{padding:120px 20px 60px}
  .hero-inner{grid-template-columns:1fr}
  .quick-facts{display:none}
  .who-grid,.results-grid,.pricing-grid{grid-template-columns:1fr}
  .schedule-grid{grid-template-columns:1fr 1fr}
  .sched-step{border-bottom:1px solid var(--border)}.sched-step:last-child{border-bottom:none;border-right:none}
  .p-card.feat{transform:none}.p-card.feat:hover{transform:translateY(-4px)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:40px}
  .footer-bottom{flex-direction:column;gap:16px;text-align:center}
  .cta-banner{padding:60px 20px}
  .cta-btns{flex-direction:column;align-items:center}
  .module-body{padding-left:28px}
}
@media(max-width:640px){
  .schedule-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}

/* --- ARIA SYSTEM COMPREHENSIVE MOBILE RESPONSIVE FIX --- */
@media (max-width: 1024px) {
  /* Ep toan bo grid va flex ve 1 cot */
  .metrics-inner, .ind-grid, .proc-steps, .process-steps, .blog-cards-grid, 
  .pillar-grid, .grid-2, .grid-3, .grid-4, .testi-grid, .pricing-grid, 
  .hero-stats, .why-table, .why-row {
    grid-template-columns: 1fr !important;
    flex-direction: column !important;
    gap: 20px !important;
  }
}

@media (max-width: 768px) {
  /* Khong che tran ngang toan cuc */
  html, body {
    max-width: 100% !important;
    overflow-x: hidden !important;
    position: relative;
  }
  
  /* Giam padding ngang cua tat ca cac phan lon xuong 16px */
  .section, .hero, .cta-banner, .site-footer, .metrics-bar, .why {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
  
  nav {
    padding-left: 16px !important;
    padding-right: 16px !important;
  }
  
  /* Xu ly cac khoi co kich thuoc co dinh gay tran */
  .serp-preview, .serp-box, .terminal, .hero-terminal, .contact-left, .contact-right, .why-cell {
    width: 100% !important;
    max-width: 100% !important;
    min-width: 0 !important;
    transform: none !important;
    position: relative !important;
    left: auto !important;
    right: auto !important;
    top: auto !important;
    bottom: auto !important;
    margin: 20px 0 0 0 !important;
    border-right: none !important;
    border-left: none !important;
  }
  
  /* Dieu chinh terminal va serp preview */
  .hero-terminal, .serp-preview {
    margin-top: 30px !important;
  }
  
  /* Dieu chinh kich thuoc font chu tieu de tranh tran dong */
  h1, .h1, .hero-h1 {
    font-size: clamp(28px, 8vw, 38px) !important;
    line-height: 1.15 !important;
    letter-spacing: -1px !important;
  }
  
  h2, .h2 {
    font-size: clamp(22px, 6vw, 28px) !important;
    line-height: 1.2 !important;
    letter-spacing: -0.5px !important;
  }
  
  /* An cac hieu ung phat sang nen gay loi rendering tren mobile */
  .glow-top, .glow-tr, .hero-glow-1, .hero-glow-2, .cta-glow, .contact-left-glow {
    display: none !important;
  }
  
  /* Bang so sanh (Why Us) tren mobile */
  .why-table {
    border-radius: 12px !important;
  }
  .why-cell {
    padding: 14px 16px !important;
    border-bottom: 1px solid var(--border) !important;
  }
  .why-cell:last-child {
    border-bottom: none !important;
  }
}

@media (max-width: 480px) {
  /* Man hinh cuc nho */
  .section, .hero, .cta-banner, .site-footer, .metrics-bar {
    padding-left: 12px !important;
    padding-right: 12px !important;
  }
  nav {
    padding: 12px !important;
  }
}
/* --- END ARIA SYSTEM COMPREHENSIVE MOBILE RESPONSIVE FIX --- */

/* Promo Countdown Banner CSS */
.promo-banner {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: 40px;
  background: linear-gradient(90deg, #E8192C, #9c0c17);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  font-weight: 700;
  z-index: 9999;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
  letter-spacing: 0.5px;
}
.promo-timer {
  background: rgba(255,255,255,0.2);
  padding: 3px 8px;
  border-radius: 4px;
  margin-left: 8px;
  font-family: monospace;
  font-size: 14px;
  border: 1px solid rgba(255,255,255,0.3);
}
body {
  padding-top: 40px !important;
}
#nav {
  top: 40px !important;
}


/* --- COMPARE TABLE FOR COURSE PAGE --- */
.compare-wrap {
  overflow-x: auto;
  margin: 32px 0;
}
.compare-table {
  width: 100%;
  border-collapse: collapse;
  border-radius: 16px;
  overflow: hidden;
}
.compare-table th {
  padding: 18px 24px;
  font-size: 13px;
  font-weight: 700;
  text-align: center;
}
.compare-table td {
  padding: 16px 24px;
  font-size: 13px;
  text-align: center;
  border-top: 1px solid var(--border, rgba(245,245,247,0.08));
}
.compare-table .col-label {
  text-align: left;
  font-weight: 600;
  color: var(--w80, rgba(245,245,247,0.8));
}
.compare-table .col-them {
  background: var(--b3, #161618);
  color: var(--w60, rgba(245,245,247,0.6));
}
.compare-table .col-us {
  background: rgba(232,25,44,0.05);
  color: var(--white, #F5F5F7);
}
.compare-table .th-them {
  background: var(--b3, #161618);
  color: var(--w60, rgba(245,245,247,0.6));
}
.compare-table .th-us {
  background: rgba(232,25,44,0.08);
  color: var(--red, #E8192C);
}
.compare-table .check {
  color: var(--green, #34C759);
  font-weight: 700;
  font-size: 16px;
}
.compare-table .cross {
  color: rgba(245,245,247,0.25);
  font-size: 16px;
}
.compare-table .highlight {
  font-weight: 700;
  color: var(--green, #34C759);
}