/* =============================================
   DU HỌC 9BI VIỆT NAM — HÀN QUỐC
   style.css — Bento Design System v4.0
   ============================================= */

@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@500;600;700;800;900&family=Plus+Jakarta+Sans:wght@400;500;600;700;800;900&display=swap');

/* ===== TOKENS ===== */
:root {
  --navy:        #0F172A;
  --navy-dark:   #070D1E;
  --navy-mid:    #1E293B;
  --navy-light:  #334155;

  --gold:        #F59E0B;
  --gold-light:  #FBBF24;
  --gold-pale:   #FEF3C7;
  --gold-dark:   #B45309;

  --sky:         #2563EB;
  --sky-light:   #60A5FA;
  --sky-pale:    #EFF6FF;

  --emerald:     #10B981;
  --emerald-light:#34D399;
  --emerald-pale:#D1FAE5;

  --white:       #FFFFFF;
  --off-white:   #F8FAFC;
  --bg:          #F1F5F9;
  --text:        #0F172A;
  --text-muted:  #475569;

  --border:      #E2E8F0;
  --border-dark: rgba(255,255,255,0.12);
  --shadow-sm:   0 2px 8px -2px rgba(15,23,42,0.05), 0 1px 4px -1px rgba(15,23,42,0.03);
  --shadow-md:   0 12px 30px -4px rgba(15,23,42,0.08), 0 4px 12px -2px rgba(15,23,42,0.04);
  --shadow-lg:   0 22px 50px -8px rgba(15,23,42,0.12), 0 8px 20px -4px rgba(15,23,42,0.06);
  --shadow-xl:   0 30px 70px -12px rgba(15,23,42,0.18);
  
  --radius-sm:   10px;
  --radius-md:   16px;
  --radius-lg:   22px;
  --radius-full: 9999px;
  --transition:  all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===== RESET & TYPOGRAPHY ===== */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;text-rendering:optimizeLegibility;-webkit-text-size-adjust:100%}
body{
  font-family:'Plus Jakarta Sans',-apple-system,BlinkMacSystemFont,sans-serif;
  background:var(--off-white);
  color:var(--text);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}
h1,h2,h3,h4,.section-title,.hero-title,.brand-logo-title,.form-card-title{
  font-family:'Outfit','Plus Jakarta Sans',sans-serif;
  letter-spacing:-0.02em;
}
button,.btn,.btn-primary,.btn-secondary,.btn-submit,.nav-cta,.sticky-btn{
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-weight:800 !important;
  letter-spacing:0.3px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit}
ul{list-style:none}

/* ===== KEYFRAMES ===== */
@keyframes fadeUp    {from{opacity:0;transform:translateY(24px)}to{opacity:1;transform:translateY(0)}}
@keyframes fadeLeft  {from{opacity:0;transform:translateX(24px)}to{opacity:1;transform:translateX(0)}}
@keyframes floatY    {0%,100%{transform:translateY(0)}50%{transform:translateY(-10px)}}
@keyframes pulse     {0%,100%{opacity:1;transform:scale(1)}50%{opacity:.4;transform:scale(1.5)}}
@keyframes shimmer   {0%{background-position:-200% center}100%{background-position:200% center}}

.fade-up{opacity:0;transform:translateY(24px);transition:opacity .65s ease,transform .65s ease}
.fade-up.visible{opacity:1;transform:translateY(0)}
.delay-1{transition-delay:.1s}.delay-2{transition-delay:.2s}
.delay-3{transition-delay:.3s}.delay-4{transition-delay:.4s}

.container{max-width:1200px;margin:0 auto;padding:0 24px}
.text-center{text-align:center}

/* ===== IMAGE UTILITIES ===== */
.card-img-cover {
  display: block;
  width: 100%;
  height: 180px;
  object-fit: cover;
  border-radius: 18px 18px 0 0;
  margin: 0;
  padding: 0;
  border: none;
}

.support-banner-img {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border-radius: 14px;
  margin-bottom: 20px;
}

.testi-avatar-img {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
  border: 2px solid var(--sky);
  box-shadow: 0 4px 12px rgba(37,99,235,0.2);
}

.hero-img-banner {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: 16px;
  margin-bottom: 24px;
  border: 1.5px solid rgba(255,255,255,0.2);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3);
}

/* ===== URGENT STRIP: PC ROTATOR + MOBILE MARQUEE ===== */
.urgent-strip{
  background:var(--navy-dark);
  color:rgba(255,255,255,.95);
  height:42px;
  display:flex;
  align-items:center;
  justify-content:center;
  position:relative;
  overflow:hidden;
  z-index:1001;
  border-bottom:1px solid rgba(255,255,255,0.1);
  padding:0 16px;
}
.urgent-strip-rotator {
  position:relative;
  width:100%;
  height:100%;
  display:flex;
  align-items:center;
  justify-content:center;
}
.urgent-strip-track {
  display:none;
}
.urgent-msg {
  position:absolute;
  opacity:0;
  transform:translateY(16px);
  transition:all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  font-size:13.5px;
  font-weight:700;
  text-align:center;
  white-space:nowrap;
  pointer-events:none;
}
.urgent-msg.active {
  opacity:1;
  transform:translateY(0);
  pointer-events:auto;
}
.urgent-strip .tag{
  display:inline-block;background:var(--gold);color:var(--navy-dark);
  padding:2px 10px;border-radius:6px;font-size:12px;font-weight:800;
  margin:0 4px;
}

/* ===== BRAND SVG LOGO ===== */
.brand-logo {
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  transition:all 0.3s;
}
.brand-logo-img {
  max-height: 42px;
  max-width: 185px;
  width: auto;
  height: auto;
  object-fit: contain;
  display: block;
  transition: transform 0.25s ease;
}
.brand-logo:hover .brand-logo-img {
  transform: scale(1.03);
}
.brand-logo-icon {
  width:44px;
  height:44px;
  flex-shrink:0;
  filter:drop-shadow(0 4px 10px rgba(37,99,235,0.25));
  transition:transform 0.3s ease;
}
.brand-logo:hover .brand-logo-icon {
  transform:scale(1.08) rotate(-3deg);
}
.brand-logo-text {
  display:flex;
  flex-direction:column;
}
.brand-logo-title {
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:1.4rem;
  font-weight:800;
  color:#0F172A;
  line-height:1.1;
  letter-spacing:-0.3px;
}
.brand-logo-title .accent {
  background:linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  font-weight:900;
  display:inline-block;
}
.brand-logo-sub {
  font-size:10px;
  font-weight:800;
  text-transform:uppercase;
  letter-spacing:1.5px;
  color:#2563EB;
  margin-top:2px;
}

/* ===== NAVBAR ===== */
.navbar{
  position:sticky;top:0;left:0;right:0;z-index:900;height:72px;
  display:flex;align-items:center;justify-content:center;padding:0;
  background:rgba(255,255,255,0.92);backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  box-shadow:var(--shadow-sm);
}
.navbar-container{
  width:100%;
  max-width:1500px;
  margin:0 auto;
  padding:0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.nav-links{display:flex;gap:28px}
.nav-links a{
  font-size:14.5px;font-weight:700;color:var(--text-muted);
  transition:color .25s;position:relative;padding:4px 0;
}
.nav-links a:hover{color:var(--navy)}
@keyframes ctaBounce {
  0%, 100% { transform: translateY(0) scale(1); }
  15% { transform: translateY(-4px) scale(1.06); }
  30% { transform: translateY(0) scale(1); }
  45% { transform: translateY(-2px) scale(1.03); }
  60% { transform: translateY(0) scale(1); }
}

.nav-cta{
  background:linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0284C7 100%);
  color:#FFFFFF !important;
  padding:11px 26px;border-radius:10px;
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-size:14.5px;font-weight:800 !important;
  text-shadow:0 1px 2px rgba(0,0,0,0.3);
  letter-spacing:0.3px;
  transition:all .3s;
  box-shadow:none !important;
  border:1px solid rgba(255,255,255,0.25);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  animation: ctaBounce 2.5s ease-in-out infinite;
}
.nav-cta:hover{transform:translateY(-2px) scale(1.04);box-shadow:none !important}
.nav-cta .cta-icon {
  font-size:16px;
  display:inline-block;
}
.nav-toggle{display:none;flex-direction:column;gap:5px;cursor:pointer}
.nav-toggle span{display:block;width:24px;height:2.5px;background:var(--navy);border-radius:2px}

.mobile-menu{
  display:none;position:fixed;top:72px;left:0;right:0;
  background:var(--white);border-bottom:2px solid var(--gold);
  padding:20px 24px;z-index:850;box-shadow:var(--shadow-lg);
}
.mobile-menu.open{display:block}
.mobile-menu a{
  display:block;padding:12px 0;font-size:15px;font-weight:700;
  color:var(--navy);border-bottom:1px solid var(--border);
}

/* ===== HERO ===== */
/* ===== HERO (BRIGHT, LIGHT & VIBRANT MODERN THEME) ===== */
.hero{
  padding:60px 0 90px;
  background:linear-gradient(135deg, #EFF6FF 0%, #E0F2FE 40%, #F8FAFC 100%);
  position:relative;overflow:hidden;color:var(--navy);
  border-bottom: 1px solid #E2E8F0;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at 85% 15%, rgba(37,99,235,0.12), transparent 50%),
             radial-gradient(circle at 10% 85%, rgba(245,158,11,0.12), transparent 50%);
}
.hero-inner{
  display:grid;grid-template-columns:1fr 440px;gap:50px;
  align-items:center;position:relative;z-index:2;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:#FFFFFF;border:1px solid #BFDBFE;
  padding:6px 16px;border-radius:100px;margin-bottom:20px;
  font-size:12px;font-weight:800;color:#1D4ED8;letter-spacing:0.5px;
  box-shadow: 0 4px 12px rgba(37,99,235,0.08);
}
.live-dot{width:8px;height:8px;background:var(--emerald);border-radius:50%;animation:pulse 1.8s infinite}

.hero-title{
  font-family:'Plus Jakarta Sans',sans-serif;
  font-size:clamp(2.4rem, 4.5vw, 3.8rem);font-weight:800;line-height:1.15;
  margin-bottom:20px;letter-spacing:-1px;color:#0F172A;
}
.hero-title .gold{color:#D97706}
.hero-desc{
  font-size:1.05rem;color:#334155;
  line-height:1.7;max-width:520px;margin-bottom:28px;
}

/* Hero Highlight Box */
.hero-highlight-box{
  background:#FFFFFF;
  border:2px solid #F59E0B;
  border-radius:16px;padding:18px 20px;margin-bottom:28px;
  box-shadow: 0 10px 30px rgba(245,158,11,0.12);
}
.hero-highlight-title{color:#B45309;font-weight:800;font-size:1rem;margin-bottom:4px}
.hero-highlight-desc{color:#334155;font-size:13.5px;line-height:1.5}
.hero-highlight-desc strong{color:#0F172A;font-weight:800}

.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-bottom:32px;
}
.hero-stat{
  background:#FFFFFF;border:1.5px solid #E2E8F0;
  padding:14px 10px;border-radius:12px;text-align:center;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
}
.stat-num{font-size:1.5rem;font-weight:800;color:#2563EB;line-height:1}
.stat-label{font-size:10.5px;font-weight:700;color:#475569;margin-top:4px}

.hero-actions{
  display:flex;
  gap:12px;
  align-items:center;
}
.hero-actions .btn-primary,
.hero-actions .btn-secondary {
  flex:1;
  text-align:center;
  justify-content:center;
}
.btn-primary{
  background:linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0284C7 100%);
  color:#FFFFFF !important;
  padding:14px 20px;border-radius:12px;
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-weight:800 !important;font-size:15px;
  text-shadow:0 1px 2px rgba(0,0,0,0.3);
  letter-spacing:0.3px;
  transition:all .3s;
  box-shadow:0 8px 24px rgba(37,99,235,0.35);
  border:1px solid rgba(255,255,255,0.25);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(37,99,235,0.5)}
.btn-secondary{
  background:#FEF3C7;
  color:#92400E !important;
  padding:14px 20px;border-radius:12px;
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-weight:800 !important;font-size:15px;
  border:2px solid #F59E0B;
  letter-spacing:0.2px;
  transition:all 0.3s;
  box-shadow:0 4px 14px rgba(245,158,11,0.15);
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
}
.btn-secondary:hover{background:#FDE68A;transform:translateY(-2px)}

/* FORM CARD */
.form-card{
  background:var(--white);
  border-radius:24px;
  box-shadow:0 20px 50px rgba(15,23,42,0.1), 0 4px 16px rgba(37,99,235,0.08);
  border:1.5px solid #BFDBFE;
  padding:32px 28px;
  color:var(--navy);
  position:relative;
  transition:all 0.3s ease;
}
.form-card:hover {
  box-shadow:0 25px 60px rgba(37,99,235,0.18), 0 6px 20px rgba(15,23,42,0.06);
}
.form-card-flag{
  position:absolute;
  top:20px;
  right:24px;
  width:40px;
  height:40px;
  border-radius:12px;
  background:#EFF6FF;
  border:1px solid #BFDBFE;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:1.15rem;
  box-shadow:0 2px 8px rgba(37,99,235,0.12);
}
.form-card-title{
  font-size:1.5rem;
  font-weight:800;
  color:var(--navy);
  margin-bottom:4px;
  letter-spacing:-0.02em;
}
.form-card-sub{
  font-size:13px;
  color:var(--text-muted);
  margin-bottom:20px;
  line-height:1.5;
}
.form-group{margin-bottom:13px}
.form-group label{
  display:block;
  font-size:11.5px;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:0.4px;
  color:#334155;
  margin-bottom:5px;
}
.form-group input,.form-group select,.form-group textarea{
  width:100%;
  padding:11px 14px;
  border:1.5px solid #CBD5E1;
  border-radius:10px;
  font-family:inherit;
  font-size:14px;
  font-weight:500;
  color:#0F172A;
  background:#F8FAFC;
  outline:none;
  transition:all 0.25s ease;
}
.form-group input::placeholder,.form-group select::placeholder,.form-group textarea::placeholder{
  color:#94A3B8;
}
.form-group input:focus,.form-group select:focus,.form-group textarea:focus{
  border-color:#2563EB;
  background:var(--white);
  box-shadow:0 0 0 4px rgba(37,99,235,0.14);
}
.form-group textarea{min-height:68px;resize:vertical}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:10px}
.btn-submit{
  width:100%;
  padding:15px 24px;
  margin-top:6px;
  background:linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0284C7 100%) !important;
  color:#FFFFFF !important;
  border:1px solid rgba(255,255,255,0.3) !important;
  border-radius:12px;
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-size:15.5px;
  font-weight:800 !important;
  text-shadow:0 1px 2px rgba(0,0,0,0.35);
  letter-spacing:0.3px;
  cursor:pointer;
  transition:all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  box-shadow:0 8px 24px rgba(37,99,235,0.35);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
}
.btn-submit:hover{
  transform:translateY(-2px) scale(1.01);
  box-shadow:0 14px 32px rgba(37,99,235,0.48);
}
.form-guarantee{
  text-align:center;
  font-size:11.5px;
  color:var(--text-muted);
  margin-top:10px;
}

/* ===== SUCCESS MESSAGE BOX ===== */
.success-msg{
  display:none;
  text-align:center;
  padding:24px 18px;
  background:#F0FDF4;
  border:2px solid #22C55E;
  border-radius:16px;
  margin-top:16px;
  box-shadow:0 10px 25px rgba(34,197,94,0.15);
  animation:fadeUp 0.5s ease;
}
.success-icon{font-size:2.2rem;display:block;margin-bottom:8px}
.success-title{color:#15803D;font-size:1.25rem;font-weight:800;margin-bottom:6px;font-family:'Outfit',sans-serif}
.success-desc{color:#166534;font-size:14px;line-height:1.5}
.section-tag{
  display:table;margin:0 auto 20px auto;
  font-size:12px;font-weight:800;letter-spacing:0.5px;
  color:#1D4ED8;background:#FFFFFF;border:1px solid #BFDBFE;
  padding:6px 16px;border-radius:100px;text-align:center;
  box-shadow:0 4px 12px rgba(37,99,235,0.08);
}
.bottom-cta-inner .section-tag{
  margin-left:0;margin-right:auto;margin-bottom:20px;
}
.section-title{
  font-family:'Plus Jakarta Sans',sans-serif;font-size:clamp(1.8rem,3.5vw,2.6rem);
  font-weight:800;line-height:1.2;margin-bottom:12px;letter-spacing:-0.5px;
}
.section-title.dark{color:var(--navy)}
.section-title.light{color:var(--white)}
.section-title .gold{color:var(--gold)}
.section-line{
  width:60px;height:4px;border-radius:2px;margin-bottom:44px;
  background:linear-gradient(90deg,var(--sky),var(--gold));
}
.section-line.center{margin-left:auto;margin-right:auto}

/* ===== BENTO GRID WHY SECTION ===== */
.bento-section {
  padding: 96px 0;
  background: var(--off-white);
  position: relative;
}

.bento-grid {
  display: grid;
  grid-template-columns: 440px 1fr;
  gap: 24px;
  margin-top: 48px;
}

/* Left Hero Spotlight Card */
.bento-spotlight {
  background: linear-gradient(145deg, #0F172A 0%, #1E293B 100%);
  border-radius: 24px;
  padding: 36px 30px;
  color: #FFFFFF;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.bento-spotlight-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(245, 158, 11, 0.2);
  color: #FBBF24;
  border: 1px solid rgba(245, 158, 11, 0.4);
  font-size: 11px;
  font-weight: 800;
  padding: 6px 14px;
  border-radius: 100px;
  text-transform: uppercase;
  letter-spacing: 1px;
  width: fit-content;
  margin-bottom: 20px;
}

.bento-spotlight-price {
  font-size: 2.6rem;
  font-weight: 800;
  color: #FBBF24;
  line-height: 1.1;
  margin-bottom: 10px;
}

.bento-spotlight-title {
  font-size: 1.35rem;
  font-weight: 800;
  color: #FFFFFF;
  margin-bottom: 14px;
  line-height: 1.35;
}

.bento-spotlight-desc {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.65;
  margin-bottom: 24px;
}

.bento-spotlight-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 28px;
}

.bento-spotlight-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  font-weight: 600;
  color: #F8FAFC;
}

.bento-spotlight-item i {
  color: #10B981;
  font-size: 1rem;
}

.bento-spotlight-cta {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: #0F172A;
  padding: 14px 24px;
  border-radius: 12px;
  font-weight: 800;
  font-size: 14px;
  text-align: center;
  transition: all 0.3s;
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.bento-spotlight-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 32px rgba(245, 158, 11, 0.4);
}

/* Right 2x2 Grid of 4 Cards */
.bento-cards-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.bento-card {
  background: #FFFFFF;
  border-radius: 20px;
  padding: 26px 22px;
  border: 1.5px solid #E2E8F0;
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.04);
  transition: all 0.35s ease;
  display: flex;
  flex-direction: column;
}

.bento-card:hover {
  border-color: #2563EB;
  transform: translateY(-5px);
  box-shadow: 0 20px 45px rgba(37, 99, 235, 0.1);
}

.bento-card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 16px;
}

.bento-card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #EFF6FF;
  color: #2563EB;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.bento-card-badge {
  font-size: 11px;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 100px;
  letter-spacing: 0.3px;
}

.bento-card-badge.gold { background: #FEF3C7; color: #B45309; }
.bento-card-badge.blue { background: #DBEAFE; color: #1E40AF; }
.bento-card-badge.green { background: #D1FAE5; color: #047857; }

.bento-card-title {
  font-size: 1.1rem;
  font-weight: 800;
  color: #0F172A;
  margin-bottom: 8px;
  line-height: 1.35;
}

.bento-card-desc {
  font-size: 13px;
  color: #475569;
  line-height: 1.6;
  margin-bottom: 14px;
}

.bento-card-footer {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px dashed #E2E8F0;
  font-size: 12px;
  font-weight: 700;
  color: #2563EB;
}

/* ===== DUAL SUPPORT SECTION ===== */
.dual-support-section{
  padding:90px 0;
  background:var(--white);
}
.dual-support-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:28px;margin-top:40px;
}
.support-card{
  border-radius:20px;padding:36px 30px;transition:all .35s;
}
.support-card.vn{
  background:linear-gradient(135deg, #FFF9F0 0%, #FFF4E0 100%);
  border:2px solid rgba(245,158,11,0.3);
}
.support-card.kr{
  background:linear-gradient(135deg, #F0F7FF 0%, #E5F0FF 100%);
  border:2px solid rgba(37,99,235,0.3);
}
.support-header{display:flex;align-items:center;gap:14px;margin-bottom:20px}
.support-flag{font-size:2.5rem;line-height:1}
.support-location{font-size:12px;font-weight:800;text-transform:uppercase;letter-spacing:1px}
.support-card.vn .support-location{color:#D97706}
.support-card.kr .support-location{color:var(--sky)}
.support-title{font-size:1.4rem;font-weight:800;color:var(--navy);margin-top:2px}
.support-list{display:flex;flex-direction:column;gap:12px}
.support-item{display:flex;align-items:flex-start;gap:10px;font-size:14px;font-weight:600;color:var(--navy)}
.support-item i{margin-top:3px;flex-shrink:0}
.support-card.vn .support-item i{color:#D97706}
.support-card.kr .support-item i{color:var(--sky)}

/* ===== TOP UNIVERSITIES SECTION ===== */
.top-uni-section{
  padding:90px 0;
  background:var(--off-white);
  border-top:1px solid var(--border);
}
.uni-features-grid{
  display:grid;grid-template-columns:repeat(3, 1fr);gap:24px;margin-top:40px;
}
.uni-feature-card{
  background:var(--white);border:1.5px solid var(--border);
  border-radius:20px;padding:28px 24px;transition:all .3s;
}
.uni-feature-card:hover{border-color:var(--sky);box-shadow:var(--shadow-md);transform:translateY(-4px)}
.uni-icon-box{
  width:52px;height:52px;border-radius:14px;background:var(--sky-pale);
  color:var(--sky);display:flex;align-items:center;justify-content:center;
  font-size:1.5rem;margin-bottom:18px;
}
.uni-card-title{font-weight:800;font-size:1.1rem;color:var(--navy);margin-bottom:8px}
.uni-card-desc{font-size:13px;color:var(--text-muted);line-height:1.6}
.uni-pills{display:flex;flex-wrap:wrap;gap:6px;margin-top:14px}
.uni-pill{font-size:11.5px;font-weight:700;padding:3px 10px;border-radius:100px;background:var(--off-white);color:var(--navy);border:1px solid var(--border)}

/* ===== PROGRAMS SECTION ===== */
.programs-section{padding:90px 0;background:var(--white)}
.programs-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.program-card{
  background:var(--off-white);border:1.5px solid var(--border);
  border-radius:20px;overflow:hidden;transition:all .35s;
  display:flex;flex-direction:column;
}
.program-card:hover{border-color:var(--sky);transform:translateY(-6px);box-shadow:var(--shadow-md)}
.program-header{padding:26px 22px;background:linear-gradient(135deg,var(--navy) 0%,var(--navy-mid) 100%);color:var(--white);margin:0}
.program-emoji{font-size:2.5rem;margin-bottom:10px;display:block}
.program-name{font-size:1.35rem;font-weight:800;margin-bottom:6px}
.program-badge{display:inline-block;background:rgba(245,158,11,0.2);color:var(--gold-light);font-size:11px;font-weight:700;padding:3px 10px;border-radius:100px}
.program-body{padding:22px}
.program-desc{font-size:13.5px;color:var(--text-muted);line-height:1.6;margin-bottom:16px}
.program-features{display:flex;flex-direction:column;gap:8px}
.program-feature{display:flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;color:var(--navy)}
.program-feature::before{content:'✓';color:var(--sky);font-weight:800}

/* ===== K-STUDY UNIVERSITY EXPLORE BUTTON ===== */
.btn-kstudy-explore {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #1D4ED8 0%, #2563EB 50%, #0284C7 100%);
  color: #FFFFFF !important;
  padding: 14px 28px;
  border-radius: 14px;
  font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif !important;
  font-size: 15px;
  font-weight: 800 !important;
  text-shadow: 0 1px 2px rgba(0,0,0,0.3);
  letter-spacing: 0.3px;
  transition: all 0.3s ease;
  border: 1.5px solid rgba(255,255,255,0.3);
  box-shadow: 0 8px 24px rgba(37,99,235,0.25);
  text-decoration: none;
}
.btn-kstudy-explore:hover {
  transform: translateY(-3px) scale(1.03);
  box-shadow: 0 14px 32px rgba(37,99,235,0.4);
  background: linear-gradient(135deg, #1E40AF 0%, #1D4ED8 50%, #0369A1 100%);
}

@media (max-width: 640px) {
  .btn-kstudy-explore {
    padding: 12px 16px;
    font-size: 13.5px;
    width: 100%;
    justify-content: center;
    box-sizing: border-box;
  }
}

/* ===== PROCESS SECTION ===== */
.process-section{padding:90px 0;background:var(--off-white)}
.process-track{display:grid;grid-template-columns:repeat(5,1fr);gap:16px;margin-top:44px}
.process-step{background:var(--white);border:1px solid var(--border);border-radius:16px;padding:24px 16px;text-align:center}
.step-num{width:48px;height:48px;border-radius:50%;background:var(--navy);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:1.2rem;margin:0 auto 14px}
.step-label{font-weight:800;font-size:13.5px;color:var(--navy);margin-bottom:6px}
.step-note{font-size:12px;color:var(--text-muted);line-height:1.5}

/* ===== TESTIMONIALS SECTION & SLIDER ===== */
.testi-section{padding:90px 0;background:var(--white)}
.testi-slider-wrapper {
  position: relative;
  max-width: 1160px;
  margin: 40px auto 0;
  overflow: hidden;
  padding: 10px 5px 20px;
}

.testi-slider-track {
  display: flex;
  gap: 24px;
  transition: transform 0.45s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}

.testi-slide {
  flex: 0 0 calc(33.333% - 16px);
  min-width: calc(33.333% - 16px);
}

@media (max-width: 1024px) {
  .testi-slide {
    flex: 0 0 calc(50% - 12px);
    min-width: calc(50% - 12px);
  }
}

@media (max-width: 640px) {
  .testi-slide {
    flex: 0 0 100%;
    min-width: 100%;
  }
}

.testi-card{
  background:var(--off-white);
  border:1.5px solid var(--border);
  border-radius:20px;
  padding:26px 22px;
  transition:all .35s;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:space-between;
}
.testi-card:hover{border-color:var(--sky);transform:translateY(-4px);box-shadow:var(--shadow-md)}
.testi-stars{color:var(--gold);font-size:13.5px;margin-bottom:10px}
.testi-quote{font-size:13.5px;color:var(--text-muted);line-height:1.65;margin-bottom:18px;font-style:italic}
.testi-author{display:flex;align-items:center;gap:12px;margin-top:auto}
.testi-avatar{width:42px;height:42px;border-radius:50%;background:var(--sky);color:var(--white);display:flex;align-items:center;justify-content:center;font-weight:800;font-size:0.95rem;flex-shrink:0}
.testi-name{font-weight:800;font-size:14px;color:var(--navy)}
.testi-info{font-size:11.5px;color:var(--text-muted);margin-top:2px}

/* Slider Controls */
.testi-controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  margin-top: 24px;
}

.testi-btn-prev, .testi-btn-next {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  border: none;
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: var(--shadow-sm);
  flex-shrink: 0;
}

.testi-btn-prev:hover, .testi-btn-next:hover {
  background: var(--sky);
  transform: scale(1.08);
}

.testi-dots {
  display: flex;
  gap: 6px;
  align-items: center;
}

.testi-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #CBD5E1;
  cursor: pointer;
  transition: all 0.3s;
}

.testi-dot.active {
  background: var(--sky);
  width: 22px;
  border-radius: 10px;
}

@media (max-width: 640px) {
  .testi-controls {
    gap: 8px;
    margin-top: 18px;
    width: 100%;
    padding: 0 4px;
    box-sizing: border-box;
  }
  .testi-btn-prev, .testi-btn-next {
    width: 36px;
    height: 36px;
    font-size: 0.95rem;
    flex-shrink: 0;
  }
  .testi-dots {
    gap: 4px;
    max-width: calc(100% - 90px);
    overflow-x: auto;
    scrollbar-width: none;
    padding: 4px 0;
  }
  .testi-dots::-webkit-scrollbar {
    display: none;
  }
  .testi-dot {
    width: 6px;
    height: 6px;
    flex-shrink: 0;
  }
  .testi-dot.active {
    width: 16px;
  }
}

/* ===== FAQ SECTION (COMPACT & BRIGHT LIGHT THEME) ===== */
.faq-section{
  padding:80px 0;
  background:linear-gradient(180deg, #F8FAFC 0%, #F1F5F9 100%);
  border-top:1px solid #E2E8F0;
}
.faq-list{
  max-width:680px;
  margin:36px auto 0;
}
.faq-item{
  border:1.5px solid #E2E8F0;
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  background:#FFFFFF;
  box-shadow: 0 2px 8px rgba(0,0,0,0.03);
  transition:all 0.3s;
}
.faq-item:hover {
  border-color:#BFDBFE;
  box-shadow: 0 4px 16px rgba(37,99,235,0.08);
}
.faq-question{
  display:flex;align-items:center;justify-content:space-between;
  margin:0;padding:16px 20px;cursor:pointer;font-weight:800;font-size:14.5px;line-height:1.5;font-family:inherit;color:#0F172A;gap:14px
}
.faq-item.open .faq-question{color:#2563EB;background:#EFF6FF}
.faq-chevron{
  width:24px;height:24px;border-radius:50%;background:#F1F5F9;
  display:flex;align-items:center;justify-content:center;font-size:11px;transition:all .3s;color:#64748B
}
.faq-item.open .faq-chevron{background:#2563EB;color:#FFFFFF;transform:rotate(180deg)}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .35s ease}
.faq-answer-inner{padding:14px 20px 18px;font-size:13.5px;color:#475569;line-height:1.65;border-top:1px solid #F1F5F9}
.faq-item.open .faq-answer{max-height:300px}

/* ===== BOTTOM CTA SECTION & REBUILT FORM (BRIGHT FRESH LIGHT THEME) ===== */
.bottom-cta-section{
  padding: 90px 0;
  background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 50%, #EFF6FF 100%);
  color: #0F172A;
  position: relative;
  overflow: hidden;
  border-top: 1px solid #BAE6FD;
}

.bottom-cta-section::before {
  content: '';
  position: absolute;
  top: -100px;
  right: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(37, 99, 235, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.bottom-cta-section::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(245, 158, 11, 0.15) 0%, rgba(0, 0, 0, 0) 70%);
  border-radius: 50%;
  pointer-events: none;
}

.bottom-cta-inner{
  display: grid;
  grid-template-columns: 1fr 480px;
  gap: 48px;
  align-items: center;
  position: relative;
  z-index: 2;
}

.bottom-cta-title{
  font-size: clamp(2rem, 3.8vw, 2.8rem);
  font-weight: 800;
  margin-bottom: 18px;
  line-height: 1.2;
  letter-spacing: -0.5px;
  color: #0F172A;
}

.bottom-cta-desc{
  font-size: 15px;
  color: #334155;
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-items{
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-item{
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 14.5px;
  color: #0F172A;
  background: #FFFFFF;
  border: 1.5px solid #E2E8F0;
  padding: 14px 18px;
  border-radius: 14px;
  box-shadow: 0 4px 14px rgba(0,0,0,0.04);
  transition: all 0.3s;
}

.contact-item:hover {
  background: #FFFFFF;
  border-color: #2563EB;
  box-shadow: 0 8px 24px rgba(37,99,235,0.12);
  transform: translateX(4px);
}

.contact-icon{
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: linear-gradient(135deg, #2563EB 0%, #1D4ED8 100%);
  color: #FFFFFF;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  box-shadow: 0 4px 12px rgba(37,99,235,0.3);
}

/* Rebuilt Pure White High-Contrast Form Card */
.bottom-form-card {
  background: #FFFFFF !important;
  border-radius: 24px;
  padding: 34px 28px;
  box-shadow: 0 20px 50px rgba(37, 99, 235, 0.15);
  border: 1.5px solid #BFDBFE;
  color: #0F172A !important;
  position: relative;
}

.bottom-form-card .form-card-title {
  color: #0F172A !important;
  font-weight: 800;
  font-size: 1.5rem;
  margin-bottom: 6px;
}

.bottom-form-card .form-card-sub {
  color: #475569 !important;
  font-size: 13px;
  margin-bottom: 24px;
  line-height: 1.5;
}

.bottom-form-card label {
  color: #1E293B !important;
  font-weight: 700;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  margin-bottom: 6px;
  display: block;
}

.bottom-form-card input,
.bottom-form-card select,
.bottom-form-card textarea {
  background: #F8FAFC !important;
  border: 1.5px solid #CBD5E1 !important;
  color: #0F172A !important;
  border-radius: 10px !important;
  padding: 12px 14px !important;
  font-size: 14px !important;
  font-weight: 600 !important;
  width: 100% !important;
  transition: all 0.3s !important;
}

.bottom-form-card input:focus,
.bottom-form-card select:focus,
.bottom-form-card textarea:focus {
  background: #FFFFFF !important;
  border-color: #2563EB !important;
  box-shadow: 0 0 0 3.5px rgba(37, 99, 235, 0.15) !important;
  outline: none !important;
}

.bottom-form-card .btn-submit {
  background: linear-gradient(135deg, #2563EB 0%, #0284C7 100%) !important;
  color: #FFFFFF !important;
  font-weight: 800 !important;
  font-size: 1rem !important;
  padding: 15px 20px !important;
  border-radius: 12px !important;
  border: none !important;
  width: 100% !important;
  margin-top: 10px !important;
  cursor: pointer !important;
  transition: all 0.3s !important;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.35) !important;
}

.bottom-form-card .btn-submit:hover {
  transform: translateY(-2px) !important;
  box-shadow: 0 12px 30px rgba(37, 99, 235, 0.5) !important;
}

.bottom-form-card .form-guarantee {
  color: #64748B !important;
  font-size: 12px !important;
  text-align: center !important;
  margin-top: 12px !important;
}

/* ===== FLOATING SIDE QUICK MENU WIDGET ===== */
.quick-menu-widget {
  position: fixed;
  right: 16px;
  top: 140px;
  z-index: 990;
  width: 210px;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(14px);
  border: 1.5px solid #BFDBFE;
  border-radius: 16px;
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.16);
  padding: 10px;
  transition: all 0.35s cubic-bezier(0.25, 1, 0.5, 1);
}

.quick-menu-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
  padding-bottom: 6px;
  border-bottom: 1px solid #E2E8F0;
}

.quick-menu-title {
  font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif;
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.8px;
  color: #1E40AF;
  display: flex;
  align-items: center;
  gap: 4px;
  text-transform: uppercase;
}

.quick-menu-close {
  background: #F1F5F9;
  border: none;
  width: 20px;
  height: 20px;
  border-radius: 50%;
  color: #475569;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 10px;
  transition: all 0.2s;
}

.quick-menu-close:hover {
  background: #E2E8F0;
  color: #0F172A;
}

.quick-menu-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.quick-card {
  display: block;
  text-decoration: none !important;
  border-radius: 10px;
  padding: 8px 10px;
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
  box-sizing: border-box;
}

/* Cluster 1: K-Study */
.quick-card.kstudy {
  background: linear-gradient(135deg, #F0F9FF 0%, #E0F2FE 100%);
  border: 1px solid #BAE6FD;
}
.quick-card.kstudy:hover {
  transform: translateY(-2px);
  border-color: #38BDF8;
  box-shadow: 0 6px 16px rgba(56, 189, 248, 0.22);
}

/* Cluster 2: TOPIK */
.quick-card.topik {
  background: linear-gradient(135deg, #FFFBEB 0%, #FEF3C7 100%);
  border: 1px solid #FDE68A;
}
.quick-card.topik:hover {
  transform: translateY(-2px);
  border-color: #F59E0B;
  box-shadow: 0 6px 16px rgba(245, 158, 11, 0.22);
}

.quick-card-badge {
  display: inline-block;
  font-size: 8.5px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.3px;
  color: #0369A1;
  background: #FFFFFF;
  padding: 1px 6px;
  border-radius: 100px;
  margin-bottom: 4px;
  border: 1px solid #BAE6FD;
}
.quick-card-badge.gold {
  color: #B45309;
  border-color: #FDE68A;
}

.quick-card-head {
  display: flex;
  gap: 6px;
  align-items: flex-start;
}

.quick-card-icon {
  font-size: 1.15rem;
  line-height: 1;
  flex-shrink: 0;
  margin-top: 1px;
}

.quick-card-title {
  font-size: 11.5px;
  font-weight: 800;
  color: #0F172A;
  margin: 0 0 2px 0;
  line-height: 1.3;
  font-family: 'Plus Jakarta Sans', sans-serif;
}

.quick-card-sub {
  font-size: 10px;
  color: #475569;
  margin: 0;
  line-height: 1.35;
}

.quick-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 4px;
  margin-top: 6px;
  background: #2563EB;
  color: #FFFFFF !important;
  font-size: 10.5px;
  font-weight: 800;
  padding: 5px 8px;
  border-radius: 6px;
  text-align: center;
  transition: all 0.25s;
}
.quick-card-btn.gold {
  background: linear-gradient(135deg, #F59E0B 0%, #D97706 100%);
  color: #0F172A !important;
}

.quick-card:hover .quick-card-btn {
  filter: brightness(1.1);
}

/* Mobile Floating Quick Trigger Button & Backdrop */
.mobile-quick-trigger {
  display: none;
}
.mobile-quick-backdrop {
  display: none;
}

/* Collapsed state for Desktop */
.quick-menu-widget.collapsed .quick-menu-body {
  display: none;
}
.quick-menu-widget.collapsed .quick-menu-header {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

@media (max-width: 768px) {
  .mobile-quick-trigger {
    display: flex;
    align-items: center;
    justify-content: center;
    position: fixed;
    bottom: 10px;
    left: 12px;
    right: 12px;
    width: calc(100% - 24px);
    z-index: 994;
    background: linear-gradient(135deg, #1E40AF 0%, #2563EB 100%);
    color: #FFFFFF !important;
    padding: 10px 16px 12px;
    border-radius: 100px;
    border: 1.5px solid rgba(255, 255, 255, 0.35);
    box-shadow: 0 10px 30px rgba(37, 99, 235, 0.45);
    font-family: 'Outfit', 'Plus Jakarta Sans', sans-serif;
    font-size: 13px;
    font-weight: 800;
    cursor: pointer;
    text-align: center;
    box-sizing: border-box;
    animation: triggerPulse 3s infinite;
  }

  .trigger-inner {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 3px;
    width: 100%;
  }

  .trigger-arrow {
    font-size: 11px;
    color: #FFF176;
    animation: arrowBounce 1.5s infinite;
  }

  @keyframes arrowBounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
  }

  .trigger-text {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-size: 13px;
    letter-spacing: 0.3px;
  }

  .mobile-quick-backdrop {
    display: block;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(5px);
    z-index: 998;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
  }
  .mobile-quick-backdrop.active {
    opacity: 1;
    pointer-events: auto;
  }

  .quick-menu-widget {
    position: fixed !important;
    top: auto !important;
    bottom: 0 !important;
    left: 0 !important;
    right: 0 !important;
    width: 100% !important;
    max-width: 100% !important;
    border-radius: 24px 24px 0 0 !important;
    padding: 20px 18px 30px !important;
    box-shadow: 0 -12px 40px rgba(0, 0, 0, 0.4) !important;
    background: #FFFFFF !important;
    z-index: 999 !important;
    transform: translateY(100%);
    transition: transform 0.35s cubic-bezier(0.25, 1, 0.5, 1) !important;
    box-sizing: border-box !important;
  }
  .quick-menu-widget.active {
    transform: translateY(0) !important;
  }

  /* 1 CARD PER ROW (1 COLUMN STACK FOR HIGH READABILITY & SPACIOUS BEAUTY) */
  .quick-menu-body {
    display: flex !important;
    flex-direction: column !important;
    gap: 12px !important;
    width: 100% !important;
    margin-top: 12px !important;
  }

  .quick-card {
    padding: 14px 14px !important;
    border-radius: 14px !important;
    display: block !important;
    width: 100% !important;
    box-sizing: border-box !important;
  }

  .quick-card-head {
    gap: 10px !important;
  }

  .quick-card-icon {
    font-size: 1.4rem !important;
  }

  .quick-card-title {
    font-size: 13px !important;
    line-height: 1.35 !important;
  }

  .quick-card-sub {
    font-size: 11px !important;
    line-height: 1.4 !important;
  }

  .quick-card-btn {
    font-size: 11.5px !important;
    padding: 8px 12px !important;
    margin-top: 10px !important;
    width: 100% !important;
  }
}

/* ===== STICKY FLOAT ANIMATIONS (BOX STATIC, GENTLE INNER VIBRATION) ===== */
@keyframes innerGentleShake {
  0%, 35%, 100% { transform: rotate(0deg); }
  4%  { transform: rotate(-5deg); }
  8%  { transform: rotate(5deg); }
  12% { transform: rotate(-4deg); }
  16% { transform: rotate(4deg); }
  20% { transform: rotate(-2deg); }
  24% { transform: rotate(2deg); }
  28% { transform: rotate(0deg); }
}

@keyframes innerGentleWiggle {
  0%, 35%, 100% { transform: translateY(0) rotate(0deg); }
  4%  { transform: translateY(-1px) rotate(-4deg); }
  8%  { transform: translateY(1px) rotate(4deg); }
  12% { transform: translateY(-1px) rotate(-3deg); }
  16% { transform: translateY(1px) rotate(3deg); }
  20% { transform: translateY(0) rotate(-1.5deg); }
  24% { transform: translateY(0) rotate(1.5deg); }
  28% { transform: translateY(0) rotate(0deg); }
}

.sticky-float{position:fixed;bottom:24px;right:24px;z-index:800;display:flex;flex-direction:column;gap:12px}
.sticky-btn{
  display:flex;align-items:center;gap:8px;
  padding:12px 22px;border-radius:50px;
  font-family:'Outfit','Plus Jakarta Sans',sans-serif !important;
  font-size:14.5px;font-weight:800 !important;
  letter-spacing:0.3px;
  color:#FFFFFF !important;
  text-shadow:0 1px 2px rgba(0,0,0,0.35);
  box-shadow:0 8px 24px rgba(0,0,0,0.3);
  border:1.5px solid rgba(255,255,255,0.3);
  transition:all 0.3s ease;
}
.sticky-btn:hover{transform:scale(1.06) !important;box-shadow:0 12px 30px rgba(0,0,0,0.45) !important}
.sticky-btn i,
.sticky-btn .sticky-text {
  display: inline-block;
  transform-origin: center center;
}
.sticky-call{
  background:linear-gradient(135deg, #FF5722 0%, #E64A19 100%);
  box-shadow:0 8px 24px rgba(230,74,25,0.4);
}
.sticky-call i,
.sticky-call .sticky-text {
  animation: innerGentleShake 3.2s ease-in-out infinite !important;
}
.sticky-zalo{
  background:linear-gradient(135deg, #0068FF 0%, #0052CC 100%);
  box-shadow:0 8px 24px rgba(0,104,255,0.4);
}
.sticky-zalo i,
.sticky-zalo .sticky-text {
  animation: innerGentleWiggle 3.2s ease-in-out 0.8s infinite !important;
}

/* ===== FOOTER ===== */
footer{background:var(--navy-dark);border-top:1px solid rgba(255,255,255,0.1);padding:44px 24px;text-align:center;color:rgba(255,255,255,0.6)}
.footer-text{font-size:13px;line-height:1.8;margin-top:12px}
.footer-links{display:flex;justify-content:center;gap:24px;margin-top:16px;font-size:13px}
.footer-links a{color:rgba(255,255,255,0.5)}
.footer-links a:hover{color:var(--gold)}

/* ===== RESPONSIVE ===== */
@media (max-width:1024px){
  .navbar{padding:0 20px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .hero-inner{grid-template-columns:1fr;gap:40px}
  .bento-grid{grid-template-columns:1fr}
  .bento-spotlight{order:1}
  .bento-cards-grid{order:2}
  .dual-support-grid{grid-template-columns:1fr}
  .uni-features-grid{grid-template-columns:1fr}
  .programs-grid{grid-template-columns:1fr}
  .testi-grid{grid-template-columns:1fr}
  .process-track{grid-template-columns:repeat(2,1fr)}
  .bottom-cta-inner{grid-template-columns:1fr}
}

@media (max-width:768px){
  .navbar {
    padding: 0 12px;
    height: 64px;
    gap: 8px;
  }
  .brand-logo {
    gap: 8px;
    margin-right: auto;
  }
  .brand-logo-img {
    max-height: 28px;
    max-width: 130px;
  }
  .brand-logo-icon {
    width: 36px;
    height: 36px;
  }
  .brand-logo-title {
    font-size: 1.15rem;
  }
  .brand-logo-sub {
    font-size: 8px;
    letter-spacing: 0.3px;
    white-space: nowrap;
    margin-top: 1px;
  }
  .nav-cta {
    width: 36px;
    height: 36px;
    padding: 0 !important;
    border-radius: 50% !important;
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    box-shadow: none !important;
    border: 1.5px solid rgba(255,255,255,0.35);
    flex-shrink: 0;
    margin-right: 4px;
  }
  .nav-cta-text {
    display: none !important;
  }
  .nav-cta .cta-icon {
    font-size: 18px !important;
    margin: 0 !important;
  }
  .nav-toggle {
    flex-shrink: 0;
  }
  .urgent-strip {
    height: 36px;
    padding: 0;
  }
  .urgent-strip-rotator {
    display: none !important;
  }
  .urgent-strip-track {
    display: inline-flex !important;
    align-items: center;
    gap: 40px;
    animation: marqueeRunMob 22s linear infinite;
    white-space: nowrap;
    width: max-content;
  }
  .urgent-strip-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
    font-size: 11.5px;
  }
  .urgent-strip .tag {
    padding: 1px 6px;
    font-size: 10.5px;
    margin: 0 2px;
  }
  .sticky-float {
    bottom: 74px !important;
    right: 16px !important;
    gap: 10px !important;
  }
  .sticky-btn {
    width: 52px;
    height: 52px;
    padding: 0;
    border-radius: 50%;
    justify-content: center;
    box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  }
  .sticky-btn .sticky-text {
    display: none !important;
  }
  .sticky-btn i {
    font-size: 22px;
    margin: 0;
  }
}

@keyframes marqueeRunMob {
  0% { transform: translateX(0); }
  100% { transform: translateX(-50%); }
}

@media (max-width:480px){
  .navbar {
    padding: 0 8px;
  }
  .brand-logo {
    gap: 6px;
  }
  .brand-logo-icon {
    width: 34px;
    height: 34px;
  }
  .brand-logo-title {
    font-size: 1.05rem;
  }
  .brand-logo-sub {
    font-size: 7.5px;
  }
  .nav-cta {
    padding: 6px 9px;
    font-size: 11px;
  }
  .urgent-msg {
    font-size: 9.5px;
  }
}

@media (max-width:640px){
  .hero-actions {
    display:grid !important;
    grid-template-columns:1fr 1fr !important;
    gap:8px !important;
    width:100% !important;
  }
  .hero-actions .btn-primary,
  .hero-actions .btn-secondary {
    width:100% !important;
    padding:12px 4px !important;
    font-size:12.5px !important;
    border-radius:10px !important;
    white-space:nowrap !important;
    box-sizing:border-box !important;
    justify-content:center !important;
    text-align:center !important;
  }
  .bento-cards-grid{grid-template-columns:1fr}
  .hero-stats{grid-template-columns:1fr 1fr}
  .form-row{grid-template-columns:1fr}
  .process-track{grid-template-columns:1fr}
}

/* ===== KNOWLEDGE BASE (Cẩm nang du học) ===== */
.kb-page{background:#F8FAFC;padding:28px 16px 56px}
.kb-container{max-width:820px;margin:0 auto;background:#fff;border-radius:20px;padding:28px 22px;box-shadow:0 10px 30px rgba(15,23,42,.06);color:#1E293B}
.kb-container.kb-wide{max-width:1100px}
.kb-breadcrumb{font-size:13px;color:#64748B;margin-bottom:14px;line-height:1.6}
.kb-breadcrumb a{color:var(--sky);text-decoration:none}
.kb-header h1{font-family:'Outfit',sans-serif;font-size:clamp(1.6rem,4vw,2.25rem);line-height:1.25;color:#0F172A;margin:0 0 10px}
.kb-meta{font-size:13.5px;color:#64748B;margin:0 0 18px}
.kb-meta a{color:inherit}
.kb-lead{font-size:16px;line-height:1.8;color:#334155;margin:0 0 24px}
.kb-hero{display:block;width:100%;height:auto;aspect-ratio:1200/630;object-fit:cover;border-radius:16px;margin-bottom:22px}
.kb-summary{background:var(--sky-pale);border:1px solid #BFDBFE;border-radius:14px;padding:16px 20px;margin-bottom:20px}
.kb-summary-title{font-weight:800;color:var(--sky);margin-bottom:6px}
.kb-summary ul{margin:0;padding-left:20px}
.kb-summary li{margin:6px 0;line-height:1.65}
.kb-toc{border:1px solid #E2E8F0;border-radius:14px;padding:12px 18px;margin-bottom:24px;background:#fff}
.kb-toc summary{font-weight:800;cursor:pointer;color:#0F172A}
.kb-toc ol{margin:10px 0 0;padding-left:22px}
.kb-toc li{margin:5px 0}
.kb-toc a{color:#334155;text-decoration:none}
.kb-toc a:hover{color:var(--sky)}
.kb-body{font-size:16.5px;line-height:1.85}
.kb-body h2,.kb-faq h2,.kb-related h2{font-family:'Outfit',sans-serif;font-size:1.45rem;line-height:1.35;color:#0F172A;margin:34px 0 12px;scroll-margin-top:90px}
.kb-body h3{font-size:1.15rem;color:#0F172A;margin:24px 0 8px}
.kb-body p{margin:0 0 14px}
.kb-body ul,.kb-body ol{margin:0 0 16px;padding-left:22px}
.kb-body li{margin:6px 0}
.kb-body a{color:var(--sky);font-weight:600}
.kb-body blockquote{margin:18px 0;padding:12px 18px;border-left:4px solid var(--gold);background:var(--gold-pale);border-radius:0 12px 12px 0}
.kb-body table{width:100%;border-collapse:collapse;margin:8px 0 20px;font-size:15px;display:block;overflow-x:auto}
.kb-body th,.kb-body td{border:1px solid #E2E8F0;padding:9px 12px;text-align:left;vertical-align:top}
.kb-body thead th{background:#F1F5F9;color:#0F172A;font-weight:700}
.kb-faq details{border:1px solid #E2E8F0;border-radius:12px;margin-bottom:10px;background:#fff}
.kb-faq summary{cursor:pointer;padding:14px 18px;list-style:none}
.kb-faq summary::-webkit-details-marker{display:none}
.kb-faq summary h3{display:inline;font-size:15.5px;font-weight:700;color:#0F172A;margin:0}
.kb-faq details[open] summary h3{color:var(--sky)}
.kb-faq details p{margin:0;padding:0 18px 14px;line-height:1.75;color:#334155}
.kb-cta{margin:32px 0 8px;padding:22px;border-radius:16px;background:linear-gradient(135deg,#0F172A,#1E3A8A);color:#fff}
.kb-cta-title{font-family:'Outfit',sans-serif;font-size:1.3rem;font-weight:800;margin-bottom:6px}
.kb-cta p{margin:0 0 14px;color:rgba(255,255,255,.85);line-height:1.7}
.kb-cta-actions{display:flex;flex-wrap:wrap;gap:10px}
.kb-btn{display:inline-block;padding:11px 18px;border-radius:999px;font-weight:700;text-decoration:none;background:rgba(255,255,255,.12);color:#fff;border:1px solid rgba(255,255,255,.25)}
.kb-btn-primary{background:var(--gold);border-color:var(--gold);color:#0F172A}
.kb-related{margin-top:24px}
.kb-grid{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:14px}
.kb-grid-hub{grid-template-columns:repeat(auto-fill,minmax(280px,1fr));gap:18px;margin-bottom:10px}
.kb-card{display:flex;flex-direction:column;gap:6px;padding:14px;border:1px solid #E2E8F0;border-radius:14px;text-decoration:none;color:inherit;background:#fff;transition:box-shadow .2s,border-color .2s}
.kb-card:hover{border-color:#BFDBFE;box-shadow:0 6px 18px rgba(37,99,235,.1)}
.kb-card img{width:100%;height:auto;aspect-ratio:600/315;object-fit:cover;border-radius:10px;margin-bottom:4px}
.kb-card-title{font-weight:800;color:#0F172A;line-height:1.4}
.kb-card-excerpt{font-size:14px;color:#64748B;line-height:1.6}
.kb-card-more{font-size:13.5px;font-weight:700;color:var(--sky);margin-top:auto}
.kb-note{font-size:13px;color:#94A3B8;margin:18px 0 0;line-height:1.6}
@media (min-width:768px){.kb-container{padding:40px 48px}}

/* Landing: knowledge base teaser */
.kb-teaser{padding:56px 16px;background:#fff}
.kb-teaser .kb-grid{max-width:1100px;margin:24px auto 0}
.kb-body ul,.kb-summary ul{list-style:disc}
.kb-body ol,.kb-toc ol{list-style:decimal}
.kb-body li::marker,.kb-summary li::marker{color:var(--sky)}
.kb-teaser .kb-grid{grid-template-columns:repeat(auto-fill,minmax(300px,1fr))}