:root {
    --int-orange:      #f97316;
    --int-orange-deep: #ea580c;
    --int-blue:        #3b82f6;
    --int-blue-deep:   #1d4ed8;
    --int-gradient:    linear-gradient(135deg, #fff7ed 0%, #eff6ff 60%, #fff 100%);
    --int-hero-bg:     linear-gradient(160deg, #fff7ed 0%, #eff6ff 45%, #e0f2fe 100%);
  }

  /* ── Hero ───────────────────────────────────────────────────── */
  .int-hero {
    min-height: 88vh;
    padding: 140px 0 80px;
    background: var(--int-hero-bg);
    position: relative;
    overflow: hidden;
  }
  .int-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background:
      radial-gradient(ellipse 60% 80% at 85% 20%, rgba(249,115,22,.11), transparent),
      radial-gradient(ellipse 50% 60% at 10% 80%, rgba(59,130,246,.10), transparent);
    pointer-events: none;
  }
  /* decorative blobs */
  .int-blob {
    position: absolute; border-radius: 50%;
    filter: blur(72px); pointer-events: none;
    animation: intBlobFloat 14s ease-in-out infinite;
  }
  .int-blob-1 { width:460px;height:460px;top:-120px;right:-80px;  background:rgba(249,115,22,.13);animation-delay:0s }
  .int-blob-2 { width:380px;height:380px;bottom:-80px;left:-60px;  background:rgba(59,130,246,.11);animation-delay:-6s }
  .int-blob-3 { width:280px;height:280px;top:42%;left:38%;          background:rgba(245,158,11,.07);animation-delay:-11s}
  @keyframes intBlobFloat {
    0%,100%{transform:translate(0,0) scale(1)}
    33%    {transform:translate(18px,-26px) scale(1.04)}
    66%    {transform:translate(-12px,18px) scale(.97)}
  }

  .int-hero-inner {
    display: grid;
    grid-template-columns: 1fr 480px;
    gap: 64px;
    align-items: center;
    position: relative; z-index: 2;
  }

  /* badge */
  .int-badge {
    display: inline-flex; align-items: center; gap: 8px;
    padding: 6px 14px 6px 8px; border-radius: 100px;
    background: #fff; border: 1.5px solid rgba(249,115,22,.3);
    box-shadow: var(--shadow);
    font-size: .76rem; font-weight: 600; color: var(--int-orange-deep);
    margin-bottom: 22px;
  }
  .int-badge-icon {
    width: 22px; height: 22px; border-radius: 50%;
    background: rgba(249,115,22,.13);
    display: flex; align-items: center; justify-content: center;
    font-size: .7rem;
  }
  .int-badge-live {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 2px 7px; border-radius: 100px;
    background: var(--int-orange-deep); color: #fff;
    font-size: .62rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase;
    margin-left: 2px;
  }

  .int-hero-h {
    font-family: var(--font-h);
    font-size: clamp(2.8rem,4.8vw,4.8rem);
    font-weight: 300; line-height: 1.06;
    letter-spacing: -.025em; color: var(--text);
    margin-bottom: 20px;
  }
  .int-hero-h strong { font-weight: 700; display: block }
  .int-hero-h em {
    font-style: italic; font-weight: 300;
    background: linear-gradient(135deg, var(--int-blue-deep) 0%, var(--int-orange) 100%);
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  }
  .int-hero-sub {
    font-size: 1rem; color: var(--text-3); line-height: 1.8;
    max-width: 500px; margin-bottom: 32px;
  }
  .int-hero-actions { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; margin-bottom: 44px }

  /* proof chips */
  .int-proof { display: flex; align-items: center; gap: 10px; flex-wrap: wrap }
  .int-chip {
    display: flex; align-items: center; gap: 7px;
    padding: 7px 13px; border-radius: 100px;
    background: #fff; border: 1px solid var(--border);
    box-shadow: var(--shadow); font-size: .75rem; font-weight: 500; color: var(--text-2);
  }
  .int-chip .ic { font-size: .85rem }

  /* ── Hero Registration Card ─────────────────────────────────── */
  .int-reg-card {
    background: #fff;
    border-radius: var(--radius-xl);
    border: 1.5px solid var(--border);
    box-shadow: var(--shadow-lg);
    overflow: hidden;
  }
  .int-reg-top {
    height: 4px;
    background: linear-gradient(90deg, var(--int-blue-deep), var(--int-blue), var(--int-orange));
    background-size: 200%;
    animation: gradShift 4s ease infinite;
  }
  .int-reg-body { padding: 30px 28px }
  .int-reg-eyebrow {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: .68rem; font-weight: 700; letter-spacing: .1em;
    text-transform: uppercase; color: var(--int-orange-deep); margin-bottom: 8px;
  }
  .int-reg-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--int-orange); animation: blink 2s infinite }
  .int-reg-title { font-family: var(--font-h); font-size: 1.4rem; font-weight: 600; color: var(--text); margin-bottom: 4px; line-height: 1.25 }
  .int-reg-sub { font-size: .8rem; color: var(--text-3); margin-bottom: 20px; line-height: 1.5 }

  .int-demo-box {
    background: linear-gradient(135deg, #fff7ed, #eff6ff);
    border: 1.5px solid rgba(249,115,22,.2);
    border-radius: var(--radius);
    padding: 14px 16px;
    margin-bottom: 16px;
  }
  .int-demo-label { font-size: .66rem; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--text-4); margin-bottom: 4px }
  .int-demo-date  { font-size: .9rem; font-weight: 700; color: var(--text); }
  .int-demo-time  { font-size: .78rem; color: var(--text-3); margin-top: 2px }
  .int-demo-seats {
    display: inline-flex; align-items: center; gap: 5px;
    margin-top: 8px;
    font-size: .7rem; font-weight: 600; color: var(--int-orange-deep);
    background: rgba(249,115,22,.08); padding: 3px 9px; border-radius: 100px;
  }

  .int-reg-urgency {
    display: flex; align-items: center; justify-content: center; gap: 6px;
    font-size: .73rem; color: var(--int-orange-deep); font-weight: 500; margin-top: 10px;
  }
  .int-urgency-dot { width: 5px; height: 5px; border-radius: 50%; background: var(--int-orange-deep); animation: blink 1.5s infinite }

  /* ── Marquee strip ──────────────────────────────────────────── */
  .int-marquee-wrap {
    padding: 40px 0;
    background: #fff;
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
  }
  .int-marquee-label {
    text-align: center; font-size: .7rem; font-weight: 600; letter-spacing: .14em;
    text-transform: uppercase; color: var(--text-4); margin-bottom: 16px;
  }

  /* ── Stats ──────────────────────────────────────────────────── */
  .int-stats {
    padding: 64px 0;
    background: linear-gradient(135deg, #fff7ed 0%, #eff6ff 50%, #e0f2fe 100%);
    position: relative; overflow: hidden;
  }
  .int-stats::before {
    content: '';
    position: absolute; inset: 0;
    background:
      radial-gradient(ellipse 50% 80% at 0% 50%, rgba(249,115,22,.1), transparent),
      radial-gradient(ellipse 40% 60% at 100% 50%, rgba(59,130,246,.08), transparent);
    pointer-events: none;
  }
  .int-stats-row {
    display: grid; grid-template-columns: repeat(4,1fr);
    gap: 1px; background: rgba(0,0,0,.06);
    border-radius: 18px; overflow: hidden;
    border: 1.5px solid rgba(255,255,255,.9);
    box-shadow: 0 8px 32px rgba(59,130,246,.1);
    position: relative; z-index: 1;
  }
  .int-stat-cell {
    background: #fff; padding: 32px 20px; text-align: center;
    transition: background .3s;
  }
  .int-stat-cell:hover { background: #fafafa }
  .int-stat-n {
    font-family: var(--font-h); font-size: 2.8rem; font-weight: 600;
    letter-spacing: -.04em; line-height: 1;
    background: linear-gradient(135deg, var(--int-orange-deep), var(--int-orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  }
  .int-stat-l { font-size: .7rem; font-weight: 500; letter-spacing: .1em; text-transform: uppercase; color: var(--text-3); margin-top: 7px }

  /* ── Programs Grid ──────────────────────────────────────────── */
  .int-programs { background: #fff; padding: 100px 0 }
  .int-programs-head { display: flex; justify-content: space-between; align-items: flex-end; gap: 20px; margin-bottom: 48px }
  .int-grid {
    display: grid; grid-template-columns: repeat(3,1fr);
    gap: 20px;
  }
  .int-grid .icard:first-child {
    grid-column: span 2;
    display: grid; grid-template-columns: 240px 1fr;
  }

  .icard {
    background: #fff; border-radius: var(--radius-lg);
    border: 1.5px solid var(--border);
    overflow: hidden; cursor: pointer;
    box-shadow: var(--shadow);
    transition: all .35s var(--ease);
    position: relative;
  }
  .icard:hover { border-color: var(--int-orange); transform: translateY(-5px); box-shadow: var(--shadow-lg) }
  .icard-bar { height: 3px }
  .icard-bar.blue   { background: linear-gradient(90deg, var(--int-blue-deep), var(--int-blue)) }
  .icard-bar.orange { background: linear-gradient(90deg, var(--int-orange-deep), var(--int-orange)) }
  .icard-bar.mixed  { background: linear-gradient(90deg, var(--int-blue-deep), var(--int-orange)) }
  .icard-bar.teal   { background: linear-gradient(90deg, #0284c7, #38bdf8) }

  .icard-visual {
    background: linear-gradient(160deg, #eff6ff, #fff7ed);
    display: flex; align-items: center; justify-content: center;
    font-size: 3.2rem; min-height: 170px; position: relative; overflow: hidden;
  }
  .icard-visual::after {
    content: ''; position: absolute; inset: 0;
    background: radial-gradient(circle at 60% 40%, rgba(59,130,246,.08), transparent 70%);
  }

  .icard-body { padding: 24px 22px }
  .icard-tag {
    display: inline-block; padding: 3px 10px; border-radius: 100px;
    font-size: .65rem; font-weight: 700; letter-spacing: .08em; text-transform: uppercase;
    margin-bottom: 9px;
  }
  .tag-blue   { background: rgba(59,130,246,.1);  color: var(--int-blue-deep) }
  .tag-orange { background: rgba(249,115,22,.1);  color: var(--int-orange-deep) }
  .tag-mixed  { background: rgba(59,130,246,.1);  color: var(--int-blue-deep) }
  .tag-teal   { background: rgba(2,132,199,.1);   color: #0369a1 }

  .icard-title { font-family: var(--font-h); font-size: 1.1rem; font-weight: 600; color: var(--text); margin-bottom: 7px; line-height: 1.3 }
  .icard-desc  { font-size: .8rem; color: var(--text-3); line-height: 1.65; margin-bottom: 12px }
  .icard-meta  { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 14px }
  .icard-meta-item { font-size: .73rem; color: var(--text-4); display: flex; align-items: center; gap: 4px }
  .icard-footer {
    display: flex; align-items: center; justify-content: space-between;
    padding-top: 12px; border-top: 1px solid var(--border);
  }
  .icard-price { font-family: var(--font-h); font-size: 1.1rem; font-weight: 600; color: var(--int-blue-deep) }
  .icard-price small { display: block; font-size: .65rem; color: var(--text-4); font-family: var(--font-b); font-weight: 400 }
  .icard-cta {
    font-size: .76rem; font-weight: 700; color: var(--int-blue-deep);
    display: flex; align-items: center; gap: 4px;
    transition: gap .25s, color .25s;
  }
  .icard:hover .icard-cta { gap: 8px; color: var(--int-orange-deep) }

  /* ── Why / Benefits ─────────────────────────────────────────── */
  .int-why { background: var(--bg); padding: 100px 0 }
  .int-why-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 48px }
  .int-why-card {
    background: #fff; border-radius: var(--radius-lg);
    border: 1.5px solid var(--border); padding: 26px 22px;
    box-shadow: var(--shadow); transition: all .35s var(--ease);
    position: relative; overflow: hidden;
  }
  .int-why-card::before {
    content: ''; position: absolute; bottom: 0; left: 0; right: 0; height: 3px;
    transform: scaleX(0); transition: transform .35s var(--ease);
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  }
  .int-why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); border-color: var(--int-orange) }
  .int-why-card:hover::before { transform: scaleX(1) }
  .int-why-card.wc-o::before { background: linear-gradient(90deg, var(--int-orange-deep), var(--int-orange)) }
  .int-why-card.wc-b::before { background: linear-gradient(90deg, var(--int-blue-deep), var(--int-blue)) }
  .int-why-card.wc-m::before { background: linear-gradient(90deg, var(--int-blue-deep), var(--int-orange)) }

  .int-why-icon {
    width: 46px; height: 46px; border-radius: 11px;
    display: flex; align-items: center; justify-content: center;
    font-size: 1.25rem; margin-bottom: 16px;
  }
  .wi-o { background: rgba(249,115,22,.1) }
  .wi-b { background: rgba(59,130,246,.1) }
  .wi-m { background: linear-gradient(135deg, rgba(59,130,246,.1), rgba(249,115,22,.08)) }
  .int-why-card h3 { font-size: .93rem; font-weight: 700; color: var(--text); margin-bottom: 7px }
  .int-why-card p  { font-size: .81rem; color: var(--text-3); line-height: 1.7 }

  /* ── Curriculum Tabs ────────────────────────────────────────── */
  .int-curr { background: #fff; padding: 100px 0 }
  .int-curr-layout {
    display: grid; grid-template-columns: 300px 1fr;
    gap: 44px; align-items: start; margin-top: 48px;
  }
  .int-curr-nav { display: flex; flex-direction: column; gap: 4px }
  .int-ctab {
    display: flex; align-items: center; gap: 12px;
    padding: 14px; border-radius: var(--radius);
    cursor: pointer; transition: all .25s; border: 1.5px solid transparent;
  }
  .int-ctab:hover { background: var(--bg-2) }
  .int-ctab.on { background: #fff7ed; border-color: rgba(249,115,22,.3) }
  .int-ctab-n {
    width: 30px; height: 30px; border-radius: 8px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    font-size: .75rem; font-weight: 700; background: var(--bg-2);
    color: var(--text-4); transition: all .25s;
  }
  .int-ctab.on .int-ctab-n { background: var(--int-orange-deep); color: #fff }
  .int-ctab-txt h4 { font-size: .86rem; font-weight: 600; color: var(--text); margin-bottom: 2px }
  .int-ctab.on .int-ctab-txt h4 { color: var(--int-orange-deep) }
  .int-ctab-txt p { font-size: .71rem; color: var(--text-4) }

  .int-curr-panel {
    background: var(--bg); border-radius: var(--radius-lg);
    border: 1.5px solid var(--border); padding: 28px;
    transition: opacity .35s, transform .35s;
  }
  .int-cp-h { font-family: var(--font-h); font-size: 1.35rem; font-weight: 600; color: var(--text); margin-bottom: 5px }
  .int-cp-sub { font-size: .82rem; color: var(--text-3); margin-bottom: 20px; line-height: 1.6 }
  .int-cp-list { display: flex; flex-direction: column; gap: 8px }
  .int-cp-item {
    display: flex; align-items: center; gap: 11px;
    padding: 10px 13px; border-radius: 8px;
    background: #fff; border: 1px solid var(--border);
    font-size: .82rem; color: var(--text-2);
    transition: all .25s;
  }
  .int-cp-item:hover { border-color: var(--int-orange); background: #fff7ed; color: var(--int-orange-deep) }
  .int-cp-chk {
    width: 17px; height: 17px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center; font-size: .56rem;
  }

  /* ── Testimonials ───────────────────────────────────────────── */
  .int-testi { background: var(--bg); padding: 100px 0 }
  .int-tgrid { display: grid; grid-template-columns: repeat(3,1fr); gap: 20px; margin-top: 48px }
  .int-tcard {
    background: #fff; border-radius: var(--radius-lg);
    border: 1.5px solid var(--border); padding: 26px 22px;
    box-shadow: var(--shadow); transition: all .35s var(--ease); position: relative; overflow: hidden;
  }
  .int-tcard::after {
    content: ''; position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--int-blue-deep), var(--int-orange));
    transform: scaleX(0); transition: transform .35s var(--ease);
  }
  .int-tcard:hover { transform: translateY(-5px); box-shadow: var(--shadow-lg); border-color: var(--int-orange) }
  .int-tcard:hover::after { transform: scaleX(1) }
  .int-tcard-q    { font-size: 2.8rem; line-height: .8; color: #bfdbfe; font-family: Georgia,serif; margin-bottom: 10px }
  .int-tcard-stars{ font-size: .78rem; color: var(--rose); letter-spacing: 2px; margin-bottom: 10px }
  .int-tcard-text { font-family: var(--font-h); font-style: italic; font-size: .92rem; color: var(--text-2); line-height: 1.75; margin-bottom: 18px }
  .int-tcard-div  { height: 1px; background: var(--border); margin-bottom: 14px }
  .int-tcard-author { display: flex; align-items: center; gap: 11px }
  .int-tcard-av {
    width: 38px; height: 38px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: .8rem; font-weight: 700; color: #fff; flex-shrink: 0;
  }
  .int-tcard-name { font-size: .84rem; font-weight: 700; color: var(--text); margin-bottom: 1px }
  .int-tcard-role { font-size: .7rem; color: var(--text-4) }
  .int-tcard-co   { font-size: .7rem; font-weight: 600 }

  /* ── Process Timeline ───────────────────────────────────────── */
  .int-process { background: #fff; padding: 100px 0 }
  .int-timeline { display: flex; gap: 0; margin-top: 52px; position: relative }
  .int-timeline::before {
    content: ''; position: absolute;
    top: 28px; left: 28px; right: 28px; height: 2px;
    background: linear-gradient(90deg, var(--int-blue-deep), var(--int-orange));
    z-index: 0;
  }
  .int-step {
    flex: 1; display: flex; flex-direction: column; align-items: center;
    text-align: center; padding: 0 12px; position: relative; z-index: 1;
  }
  .int-step-circle {
    width: 56px; height: 56px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-family: var(--font-h); font-size: 1.1rem; font-weight: 700; color: #fff;
    margin-bottom: 16px;
    border: 3px solid #fff;
    box-shadow: 0 4px 16px rgba(0,0,0,.1);
    transition: transform .3s var(--spring);
  }
  .int-step:hover .int-step-circle { transform: scale(1.12) }
  .int-step-title { font-size: .88rem; font-weight: 700; color: var(--text); margin-bottom: 6px }
  .int-step-desc  { font-size: .76rem; color: var(--text-3); line-height: 1.6 }

  /* ── CTA Section ────────────────────────────────────────────── */
  .int-cta { padding: 100px 0; background: var(--bg); position: relative; overflow: hidden }
  .int-cta::before {
    content: ''; position: absolute; inset: 0;
    background:
      radial-gradient(ellipse 55% 70% at 20% 50%, rgba(59,130,246,.07), transparent),
      radial-gradient(ellipse 45% 60% at 80% 50%, rgba(249,115,22,.08), transparent);
    pointer-events: none;
  }
  .int-cta-box {
    text-align: center; padding: 76px 56px; position: relative; z-index: 1;
    border-radius: var(--radius-xl); background: #fff;
    border: 1.5px solid var(--border); box-shadow: var(--shadow-lg);
  }
  .int-cta-box::before, .int-cta-box::after {
    content: ''; position: absolute; width: 22px; height: 22px;
    border-color: rgba(249,115,22,.4); border-style: solid;
  }
  .int-cta-box::before { top: 14px; left: 14px; border-width: 2px 0 0 2px; border-radius: 4px 0 0 0 }
  .int-cta-box::after  { bottom: 14px; right: 14px; border-width: 0 2px 2px 0; border-radius: 0 0 4px 0 }
  .int-cta-h {
    font-family: var(--font-h);
    font-size: clamp(2.2rem,4vw,3.6rem);
    font-weight: 300; line-height: 1.08;
    letter-spacing: -.02em; color: var(--text); margin-bottom: 14px;
  }
  .int-cta-h em {
    font-style: italic;
    background: linear-gradient(135deg, var(--int-blue-deep), var(--int-orange));
    -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
  }
  .int-cta-h strong { font-weight: 700 }
  .int-cta-p { font-size: .96rem; color: var(--text-3); line-height: 1.8; max-width: 500px; margin: 0 auto 36px }
  .int-cta-btns { display: flex; justify-content: center; gap: 12px; flex-wrap: wrap }

  /* ── FAQ ─────────────────────────────────────────────────────── */
  .int-faq { background: var(--bg); padding: 100px 0 }
  .int-faq-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; margin-top: 48px }
  .int-faq-item {
    background: #fff; border-radius: var(--radius);
    border: 1.5px solid var(--border);
    overflow: hidden; transition: border-color .25s;
  }
  .int-faq-item:hover { border-color: rgba(249,115,22,.3) }
  .int-faq-q {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 18px; cursor: pointer;
    font-size: .86rem; font-weight: 600; color: var(--text);
    user-select: none;
  }
  .int-faq-q::after {
    content: '+'; font-size: 1.1rem; color: var(--int-orange);
    transition: transform .3s var(--ease); flex-shrink: 0; margin-left: 10px;
  }
  .int-faq-item.open .int-faq-q::after { transform: rotate(45deg) }
  .int-faq-a {
    display: none; padding: 0 18px 16px;
    font-size: .82rem; color: var(--text-3); line-height: 1.75;
  }
  .int-faq-item.open .int-faq-a { display: block }

  /* ── Responsive ─────────────────────────────────────────────── */
  @media(max-width:1024px){
    .int-hero-inner { grid-template-columns: 1fr; gap: 48px }
    .int-grid .icard:first-child { grid-column:span 1; grid-template-columns:1fr }
    .int-grid { grid-template-columns: 1fr 1fr }
    .int-why-grid { grid-template-columns: 1fr 1fr }
    .int-curr-layout { grid-template-columns: 1fr }
    .int-tgrid { grid-template-columns: 1fr 1fr }
    .int-stats-row { grid-template-columns: 1fr 1fr }
    .int-faq-grid { grid-template-columns: 1fr }
  }
  @media(max-width:768px){
    .int-hero { padding-top: 80px; padding-bottom: 56px }
    .int-grid { grid-template-columns: 1fr }
    .int-why-grid { grid-template-columns: 1fr }
    .int-tgrid { grid-template-columns: 1fr }
    .int-timeline { flex-direction: column; gap: 32px }
    .int-timeline::before { display: none }
    .int-step { flex-direction: row; text-align: left; gap: 16px; align-items: flex-start }
    .int-step-circle { margin-bottom: 0; flex-shrink: 0 }
    .int-cta-box { padding: 44px 20px }
  }