:root{
  --zt-primary:#0f6cbd;
  --zt-primary-2:#1b6ec2;
  --zt-accent:#22c55e;
  --zt-text:#0f172a;
  --zt-muted:#475569;
  --zt-border:#e2e8f0;
  --zt-bg:#f8fafc;
  --zt-card:#ffffff;
  --zt-shadow:0 10px 35px rgba(2, 6, 23, .08);
  --zt-shadow-soft:0 10px 25px rgba(2, 6, 23, .06);
  --zt-radius-lg: 18px;
  --zt-radius-xl: 22px;
  --zt-container: 1120px;
}

html, body{
  height:100%;
  background:
    radial-gradient(1100px circle at 10% 10%, rgba(15,108,189,.12), transparent 55%),
    radial-gradient(900px circle at 90% 15%, rgba(34,197,94,.14), transparent 50%),
    var(--zt-bg);
  color:var(--zt-text);
}

body{
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a{ color: var(--zt-primary); }
a:hover{ color: var(--zt-primary-2); }

:focus-visible{
  outline: 3px solid rgba(15,108,189,.35);
  outline-offset: 2px;
  border-radius: 8px;
}

/* Subtle selection for a more polished feel */
::selection{
  background: rgba(15,108,189,.18);
}

/* Page alignment */
.zt-page{
  padding: 26px 14px 10px 14px; /* reduced bottom padding */
}

.zt-shell{
  max-width: var(--zt-container);
  margin: 0 auto;
}

.zt-section{
  margin-top: 18px; /* reduced */
}

.zt-hero{
  border:1px solid var(--zt-border);
  background: linear-gradient(135deg, rgba(15,108,189,.10), rgba(34,197,94,.08));
  border-radius: var(--zt-radius-xl);
  padding: 20px; /* reduced */
  box-shadow: var(--zt-shadow);
}

.zt-hero-grid{
  display:grid;
  grid-template-columns: 1.25fr .75fr;
  gap: 18px;
  align-items: stretch;
}

.zt-brand{
  display:flex;
  gap:14px;
  align-items:center;
}

.zt-logo-img{
  width: 64px;
  height: 64px;
  object-fit: contain;
  border-radius: 14px;
  background: rgba(255,255,255,.70);
  padding: 6px;
  box-shadow: 0 10px 24px rgba(2, 6, 23, .08);
}

.zt-logo{
  display:none;
}

.zt-title{
  margin:0;
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.zt-subtitle{
  margin: 6px 0 0 0;
  color: var(--zt-muted);
  font-weight: 600;
}

.zt-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-top:14px;
}

.zt-badge{
  display:inline-flex;
  align-items:center;
  padding:8px 12px;
  border-radius:999px;
  border:1px solid rgba(15,108,189,.18);
  background: rgba(255,255,255,.75);
  backdrop-filter: blur(10px);
  font-weight: 700;
  color: var(--zt-text);
  box-shadow: 0 6px 18px rgba(2, 6, 23, .04);
}

.zt-highlight{
  height: 100%;
  border:1px solid rgba(15,108,189,.16);
  background: rgba(255,255,255,.78);
  border-radius: var(--zt-radius-lg);
  padding: 16px;
  box-shadow: var(--zt-shadow-soft);
}

.zt-highlight-title{
  font-weight: 900;
  letter-spacing: -0.01em;
  margin-bottom: 8px;
}

.zt-highlight-list{
  margin: 0;
  padding-left: 1.1rem;
  color: var(--zt-muted);
}

.zt-highlight-list li{
  margin: 6px 0;
}

.zt-section-head{
  display:flex;
  flex-direction:column;
  gap:4px;
}

.zt-section-title{
  margin: 0;
  font-weight: 900;
  letter-spacing: -0.02em;
}

.zt-muted{
  color: var(--zt-muted);
}

/* Featured grid alignment */
.zt-grid{
  display:grid;
  grid-template-columns: repeat(4, minmax(0,1fr));
  gap: 14px;
}

.zt-grid > .zt-card{
  height: 100%;
}

.zt-card{
  border: 1px solid var(--zt-border);
  border-radius: var(--zt-radius-lg);
  background: var(--zt-card);
  box-shadow: 0 12px 30px rgba(2, 6, 23, .06);
  transition: transform .15s ease, box-shadow .15s ease, border-color .15s ease;
}

.zt-card-pad{
  padding: 14px; /* reduced */
}

.zt-card:hover{
  transform: translateY(-2px);
  border-color: rgba(15,108,189,.25);
  box-shadow: 0 18px 42px rgba(2, 6, 23, .10);
}

.zt-course-number{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: rgba(15,108,189,.12);
  color: var(--zt-primary);
  font-weight: 900;
  flex: 0 0 auto;
  margin-top: 2px;
}

.zt-course-title{
  display:flex;
  align-items:flex-start;
  gap: 12px;
}

/* Stats counters (like reference image) */
.zt-stats{
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px 22px;
  padding: 6px 8px;
  text-align: center;
}

.zt-stat{
  display: grid;
  gap: 4px;
  justify-items: center;
  align-content: center;
  min-height: 90px;
}

.zt-stat-value{
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  font-size: clamp(34px, 3.4vw, 54px);
  color: #0b3dff;
}

.zt-stat-label{
  font-weight: 700;
  color: rgba(71,85,105,.95);
  font-size: clamp(15px, 1.4vw, 22px);
  line-height: 1.2;
}

/* Footer */
.zt-page-footer{
  margin-top: 28px;
  padding-bottom: 14px; /* reduced bottom padding */
}

.zt-bottom{
  margin-top: 18px; /* reduced */
}

.zt-footer-card{
  display:grid;
  grid-template-columns: 1fr 1fr;
  align-items:start;
  gap: 12px;
  padding: 18px;
  border-radius: var(--zt-radius-lg);
  border: 1px solid var(--zt-border);
  background: rgba(255,255,255,.78);
  backdrop-filter: blur(10px);
  box-shadow: var(--zt-shadow-soft);
}

.zt-footer-title{
  font-weight: 900;
  letter-spacing: -0.01em;
}

.zt-footer-right{
  text-align: right;
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
}

.zt-footer-label{
  font-weight: 800;
  font-size: .9rem;
}

.zt-footer-muted{
  color: var(--zt-muted);
}

.zt-footer-bottom{
  margin-top: 12px;
  padding-top: 12px;
  border-top: 1px solid rgba(226,232,240,.9);
  color: var(--zt-muted);
}

/* Dark footer like reference */
.zt-footer-dark{
  margin-top: 10px; /* reduced */
  border-radius: var(--zt-radius-lg);
  background: radial-gradient(900px circle at 15% 10%, rgba(34,197,94,.18), transparent 45%),
              radial-gradient(700px circle at 85% 20%, rgba(15,108,189,.22), transparent 50%),
              #0b1220;
  color: rgba(255,255,255,.92);
  box-shadow: 0 18px 45px rgba(2, 6, 23, .18);
  overflow: hidden;
}

/* Make the dark footer content wider inside (more "expanded") */
.zt-footer-dark-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
  padding: 12px 28px; /* more side padding, less vertical padding */
  min-height: 64px; /* reduced height */
  max-width: calc(var(--zt-container) + 140px);
  margin: 0 auto;
}

.zt-footer-dark-left{
  display:flex;
  align-items:center;
  gap: 16px;
  min-width: 0;
}

.zt-footer-pin{
  width: 56px; /* reduced */
  height: 56px; /* reduced */
  border-radius: 18px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 35%),
    linear-gradient(135deg, rgba(34,197,94,.95), rgba(34,197,94,.55));
  box-shadow: 0 14px 34px rgba(34,197,94,.20);
  position: relative;
  flex: 0 0 auto;
}

.zt-footer-pin::after{
  content: "";
  position: absolute;
  inset: 16px 19px 22px 19px; /* adjusted */
  border-radius: 999px;
  background: rgba(11,18,32,.85);
}

.zt-footer-pin-icon{
  width: 56px;
  height: 56px;
  border-radius: 18px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  line-height: 1;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.22), transparent 35%),
    linear-gradient(135deg, rgba(34,197,94,.95), rgba(34,197,94,.55));
  box-shadow: 0 14px 34px rgba(34,197,94,.20);
  flex: 0 0 auto;
}

.zt-footer-dark-label{
  display: inline-flex;
  align-items: baseline;
  gap: 8px;
  flex-wrap: nowrap;
}

.zt-footer-dark-text{
  font-weight: 700;
  letter-spacing: .01em;
  color: rgba(255,255,255,.92);
}

.zt-footer-dark-copy{
  font-weight: 700;
  color: rgba(255,255,255,.80);
}

.zt-footer-dark-right{
  text-align: right;
}

.zt-footer-dark-link{
  display: inline-block;
  color: rgba(255,255,255,.92);
  font-weight: 700;
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 10px;
  background: rgba(255,255,255,.06);
  border: 1px solid rgba(255,255,255,.10);
  transition: background .15s ease, transform .15s ease, border-color .15s ease;
}

.zt-footer-dark-link:hover{
  text-decoration: none;
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.16);
  transform: translateY(-1px);
}

/* Slim footer bar like reference screenshot */
.zt-footer-bar{
  margin-top: 10px;
  border-radius: var(--zt-radius-lg);
  background:
    radial-gradient(900px circle at 15% 10%, rgba(34,197,94,.12), transparent 45%),
    radial-gradient(700px circle at 85% 20%, rgba(15,108,189,.14), transparent 50%),
    #0b1220;
  color: rgba(255,255,255,.92);
  box-shadow: 0 18px 45px rgba(2, 6, 23, .18);
  overflow: hidden;
}

.zt-footer-bar-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 16px;
  padding: 10px 18px;
  min-height: 48px;
}

.zt-footer-bar-left{
  font-weight: 700;
  letter-spacing: .01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.zt-footer-social{
  display:flex;
  align-items:center;
  gap: 10px;
}

.zt-footer-social-link{
  width: 30px;
  height: 30px;
  border-radius: 999px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color: rgba(255,255,255,.92);
  text-decoration:none;
  border: 1px solid rgba(255,255,255,.14);
  background: rgba(255,255,255,.06);
  transition: background .15s ease, transform .15s ease, border-color .15s ease;
}

.zt-footer-social-link:hover{
  background: rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.22);
  transform: translateY(-1px);
}

/* simple text icons placeholder */
.zt-icon{
  font-size: .78rem;
  line-height: 1;
  font-weight: 900;
  letter-spacing: -.02em;
}

/* Global banner image */
.zt-global-banner{
  display: block;
  width: 30%;
  max-width: 30%;
  height: auto;
  object-fit: cover;
  border-radius: calc(var(--zt-radius-lg) - 4px);
}

/* Banner section with left + right image */
.zt-banner-grid{
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  align-items: stretch;
}

.zt-banner-grid .zt-global-banner{
  width: 100%;
  max-width: 100%;
  height: 100%;
  min-height: 50px;
  /* show full image (no cropping) */
  object-fit: contain;
  background: #fff;
  /* keep banners shorter so they are visible without initial scroll */
  max-height: 260px;
}

.zt-global-banner-right{
  justify-self: stretch;
}

@media (max-width: 1200px){
  .zt-grid{ grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .zt-footer-dark-inner{ max-width: calc(var(--zt-container) + 40px); }
  .zt-banner-grid .zt-global-banner{ max-height: 220px; }
}

@media (max-width: 768px){
  .zt-page{ padding-top: 18px; }
  .zt-hero{ padding: 18px; }
  .zt-hero-grid{ grid-template-columns: 1fr; }
  .zt-grid{ grid-template-columns: 1fr; }
  .zt-footer-card{ grid-template-columns: 1fr; }
  .zt-footer-right{ text-align: left; align-items: flex-start; }
  .zt-footer-dark-inner{
    flex-direction: column;
    align-items: flex-start;
    padding: 14px 16px;
    min-height: 0;
  }
  .zt-logo-img{ width: 52px; height: 52px; }
  .zt-global-banner{
    height: clamp(120px, 40vw, 220px);
  }
  .zt-banner-grid .zt-global-banner{ max-height: 180px; }

  .zt-stats{
    grid-template-columns: 1fr;
    gap: 10px;
    padding: 4px 6px;
  }
  .zt-stat{ min-height: 80px; }
}