:root{
    --green-900:#12351f;
    --green-700:#1f6b3c;
    --green-600:#2c7a4b;
    --green-100:#e7f2ea;
    --ink:#101210;
    --ink-soft:#3a3f3b;
    --paper:#faf9f5;
    --paper-2:#f1efe7;
    --line:#dedad0;
    --gold:#b98a2e;
    --white:#ffffff;
    --radius:14px;
    --maxw:1180px;
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:'Inter',sans-serif;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,.display{
    font-family:'Space Grotesk',sans-serif;
    letter-spacing:-0.01em;
    margin:0;
  }
  .mono{
    font-family:'IBM Plex Mono',monospace;
    letter-spacing:0.06em;
    text-transform:uppercase;
  }
  a{color:inherit;text-decoration:none;}
  img{display:block;max-width:100%;}
  .wrap{max-width:var(--maxw);margin:0 auto;padding:0 28px;}
  button{font-family:inherit;cursor:pointer;}

  /* Skip link / focus */
  a:focus-visible, button:focus-visible{outline:2px solid var(--green-600);outline-offset:3px;}

  @media (prefers-reduced-motion: reduce){
    *{animation:none !important; transition:none !important;}
  }

  /* ---------- Header ---------- */
  header{
    position:sticky;top:0;z-index:50;
    background:rgba(250,249,245,0.92);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 28px;max-width:var(--maxw);margin:0 auto;
  }
  .nav-logo img{height:34px;width:auto;}
  .nav-links{
    display:flex;gap:34px;align-items:center;
  }
  .nav-links a{
    font-size:14.5px;font-weight:500;color:var(--ink-soft);
    position:relative;padding:4px 0;
  }
  .nav-links a::after{
    content:"";position:absolute;left:0;bottom:0;width:0;height:2px;
    background:var(--green-600);transition:width .25s ease;
  }
  .nav-links a:hover::after{width:100%;}
  .nav-cta{
    background:var(--green-700);color:var(--white);
    padding:11px 22px;border-radius:999px;font-weight:600;font-size:14px;
    border:none;
  }
  .nav-cta:hover{background:var(--green-900);}
  .nav-toggle{display:none;background:none;border:none;padding:6px;}
  .nav-toggle span{display:block;width:22px;height:2px;background:var(--ink);margin:5px 0;}

  @media (max-width:860px){
    .nav-links{
      position:fixed;inset:60px 0 0 0;background:var(--paper);
      flex-direction:column;padding:30px 28px;gap:22px;
      transform:translateY(-110%);transition:transform .3s ease;
      border-bottom:1px solid var(--line);
    }
    .nav-links.open{transform:translateY(0);}
    .nav-toggle{display:block;}
    .nav-auth{flex-direction:column;align-items:flex-start;gap:12px;width:100%;}
    .nav-auth .nav-cta{width:100%;text-align:center;}
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;overflow:hidden;
    padding:90px 0 110px;
    background:
      linear-gradient(180deg, var(--paper) 0%, var(--paper) 100%);
  }
  .hero-diag{
    position:absolute;top:-10%;right:-8%;width:60%;height:130%;
    background:linear-gradient(135deg, var(--green-100) 0%, transparent 60%);
    clip-path:polygon(35% 0, 100% 0, 100% 100%, 0% 100%);
    z-index:0;
  }
  .hero-inner{
    position:relative;z-index:1;
    display:grid;grid-template-columns:1.1fr 0.9fr;gap:50px;align-items:center;
  }
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12px;color:var(--green-700);font-weight:600;margin-bottom:22px;
  }
  .eyebrow::before{
    content:"";width:22px;height:2px;background:var(--gold);
  }
  .hero h1{
    font-size:clamp(38px,5vw,60px);
    line-height:1.04;font-weight:700;color:var(--ink);
  }
  .hero h1 em{
    font-style:normal;color:var(--green-700);
  }
  .hero p.lead{
    margin-top:22px;font-size:18px;line-height:1.6;color:var(--ink-soft);max-width:46ch;
  }
  .hero-actions{display:flex;gap:14px;margin-top:34px;flex-wrap:wrap;}
  .btn-primary{
    background:var(--green-700);color:var(--white);
    padding:15px 28px;border-radius:999px;font-weight:600;font-size:15px;border:none;
    transition:background .2s ease, transform .2s ease;
  }
  .btn-primary:hover{background:var(--green-900);transform:translateY(-1px);}
  .btn-ghost{
    padding:15px 26px;border-radius:999px;font-weight:600;font-size:15px;
    border:1.5px solid var(--ink);background:transparent;color:var(--ink);
    transition:border-color .2s ease, background .2s ease;
  }
  .btn-ghost:hover{background:var(--ink);color:var(--white);}

  .hero-stats{
    display:flex;gap:30px;margin-top:44px;padding-top:26px;border-top:1px solid var(--line);
    flex-wrap:wrap;
  }
  .stat b{display:block;font-family:'Space Grotesk';font-size:26px;color:var(--ink);}
  .stat span{font-size:12.5px;color:var(--ink-soft);}

  /* Signature: rising-step diagonal card echoing the V/P mark */
  .hero-mark{
    position:relative;height:420px;
  }
  .mark-panel{
    position:absolute;border-radius:18px;overflow:hidden;
    box-shadow:0 20px 50px -18px rgba(16,18,16,0.35);
  }
  .mark-panel.p1{
    width:62%;height:58%;left:0;bottom:0;background:var(--green-700);
  }
  .mark-panel.p2{
    width:52%;height:64%;right:0;top:0;background:var(--ink);
  }
  .mark-panel.p3{
    width:38%;height:38%;right:8%;bottom:6%;background:var(--gold);
  }
  .mark-panel .fill{position:absolute;inset:0;padding:22px;color:var(--white);}
  .mark-panel.p1 .fill{display:flex;flex-direction:column;justify-content:flex-end;}
  .mark-panel.p1 .fill .k{font-family:'Space Grotesk';font-size:34px;font-weight:700;}
  .mark-panel.p1 .fill .d{font-size:12.5px;opacity:.85;margin-top:4px;}
  .mark-panel.p2 .fill{display:flex;flex-direction:column;justify-content:space-between;}
  .mark-panel.p2 .fill .top{font-size:12px;opacity:.75;}
  .mark-panel.p2 .fill .bot{font-family:'Space Grotesk';font-size:20px;line-height:1.2;}
  .mark-panel.p3 .fill{display:flex;align-items:center;justify-content:center;color:var(--ink);
    font-family:'Space Grotesk';font-weight:700;font-size:15px;text-align:center;}

  @media (max-width:940px){
    .hero-inner{grid-template-columns:1fr;}
    .hero-mark{height:300px;order:-1;}
  }

  /* ---------- Section shell ---------- */
  section{padding:96px 0;}
  .section-head{
    max-width:640px;margin-bottom:52px;
  }
  .section-head .mono{font-size:12px;color:var(--green-700);margin-bottom:12px;display:block;}
  .section-head h2{font-size:clamp(28px,3.4vw,40px);font-weight:700;}
  .section-head p{color:var(--ink-soft);margin-top:14px;font-size:16px;line-height:1.6;}

  /* ---------- Course filter chips ---------- */
  .chip-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:36px;}
  .chip{
    padding:9px 18px;border-radius:999px;border:1px solid var(--line);
    font-size:13.5px;font-weight:600;color:var(--ink-soft);background:var(--white);
    transition:all .18s ease;
  }
  .chip.active, .chip:hover{background:var(--green-700);color:var(--white);border-color:var(--green-700);}

  /* ---------- Courses grid ---------- */
  .courses-grid{
    display:grid;grid-template-columns:repeat(3,1fr);gap:26px;
  }
  @media (max-width:940px){.courses-grid{grid-template-columns:repeat(2,1fr);}}
  @media (max-width:680px){.courses-grid{grid-template-columns:1fr;}}

  .course-card{
    background:var(--white);border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;display:flex;flex-direction:column;gap:16px;
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }
  .course-card:hover{
    transform:translateY(-5px);
    box-shadow:0 18px 34px -20px rgba(18,53,31,0.35);
    border-color:var(--green-600);
  }
  .course-top{display:flex;justify-content:space-between;align-items:flex-start;gap:10px;}
  .course-level{
    font-size:10.5px;font-weight:700;padding:5px 10px;border-radius:6px;
    background:var(--green-100);color:var(--green-700);white-space:nowrap;
  }
  .course-card h3{font-size:19px;font-weight:700;line-height:1.3;}
  .course-card .desc{font-size:14px;color:var(--ink-soft);line-height:1.55;flex-grow:1;}
  .course-meta{
    display:flex;gap:16px;font-size:12.5px;color:var(--ink-soft);
    border-top:1px dashed var(--line);padding-top:14px;
  }
  .course-meta span{display:flex;align-items:center;gap:6px;}
  .course-footer{display:flex;justify-content:space-between;align-items:center;margin-top:2px;}
  .course-price{font-family:'Space Grotesk';font-weight:700;font-size:20px;color:var(--ink);}
  .course-price small{font-size:11px;font-weight:500;color:var(--ink-soft);}
  .course-btn{
    font-size:13.5px;font-weight:700;color:var(--green-700);
    display:flex;align-items:center;gap:6px;
  }
  .course-btn:hover{color:var(--green-900);}

  /* ---------- Why us ---------- */
  .why-grid{
    display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
    background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;
  }
  @media (max-width:940px){.why-grid{grid-template-columns:repeat(2,1fr);}}
  @media (max-width:560px){.why-grid{grid-template-columns:1fr;}}
  .why-item{background:var(--white);padding:32px 26px;}
  .why-item .num{font-family:'IBM Plex Mono';font-size:12px;color:var(--gold);}
  .why-item h4{font-family:'Space Grotesk';font-size:17px;margin-top:14px;font-weight:700;}
  .why-item p{font-size:13.5px;color:var(--ink-soft);margin-top:10px;line-height:1.55;}

  /* ---------- Path / process ---------- */
  .path{
    background:var(--ink);color:var(--white);border-radius:20px;padding:56px 46px;
    display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
  }
  @media (max-width:860px){.path{grid-template-columns:1fr;padding:40px 26px;}}
  .path h2{color:var(--white);font-size:clamp(26px,3vw,34px);}
  .path p{color:#c9d1cb;margin-top:16px;line-height:1.6;font-size:15.5px;}
  .path-steps{display:flex;flex-direction:column;gap:0;}
  .path-step{
    display:flex;gap:18px;padding:18px 0;border-bottom:1px solid rgba(255,255,255,0.12);
  }
  .path-step:last-child{border-bottom:none;}
  .path-step .n{
    font-family:'Space Grotesk';font-weight:700;font-size:15px;color:var(--gold);
    min-width:26px;
  }
  .path-step h5{font-size:15px;font-weight:700;}
  .path-step p{margin-top:4px;font-size:13.5px;color:#b7c0ba;}

  /* ---------- Testimonials ---------- */
  .testi-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  @media (max-width:940px){.testi-grid{grid-template-columns:1fr;}}
  .testi{
    background:var(--paper-2);border-radius:var(--radius);padding:28px;
    border-left:3px solid var(--green-600);
  }
  .testi p{font-size:14.5px;line-height:1.65;color:var(--ink);}
  .testi .who{margin-top:18px;display:flex;align-items:center;gap:12px;}
  .avatar{
    width:38px;height:38px;border-radius:50%;
    background:var(--green-700);color:var(--white);
    display:flex;align-items:center;justify-content:center;
    font-family:'Space Grotesk';font-weight:700;font-size:14px;
  }
  .who .name{font-size:13.5px;font-weight:700;}
  .who .role{font-size:12px;color:var(--ink-soft);}

  /* ---------- CTA / Contact ---------- */
  .cta-band{
    background:var(--green-100);border-radius:20px;padding:56px 46px;
    display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap;
  }
  .cta-band h2{font-size:clamp(24px,3vw,32px);max-width:480px;}
  .cta-band p{margin-top:10px;color:var(--ink-soft);font-size:15px;}

  .contact-grid{
    display:grid;grid-template-columns:1fr 1fr;gap:50px;
  }
  @media (max-width:860px){.contact-grid{grid-template-columns:1fr;}}
  .contact-info h3{font-size:22px;font-weight:700;}
  .contact-info p{color:var(--ink-soft);margin-top:12px;font-size:15px;line-height:1.6;}
  .contact-list{margin-top:26px;display:flex;flex-direction:column;gap:16px;}
  .contact-list .row{display:flex;gap:14px;align-items:flex-start;}
  .contact-list .ico{
    width:38px;height:38px;border-radius:9px;background:var(--green-100);color:var(--green-700);
    display:flex;align-items:center;justify-content:center;flex-shrink:0;font-size:16px;
  }
  .contact-list .t{font-size:11.5px;color:var(--ink-soft);}
  .contact-list .v{font-size:14.5px;font-weight:600;margin-top:2px;}

  form{display:flex;flex-direction:column;gap:14px;}
  .f-row{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
  @media (max-width:520px){.f-row{grid-template-columns:1fr;}}
  label{font-size:12.5px;font-weight:600;color:var(--ink-soft);margin-bottom:6px;display:block;}
  input, textarea, select{
    width:100%;border:1px solid var(--line);border-radius:10px;padding:12px 14px;
    font-family:inherit;font-size:14px;background:var(--white);color:var(--ink);
  }
  input:focus, textarea:focus, select:focus{border-color:var(--green-600);}
  textarea{resize:vertical;min-height:100px;}
  form .submit{
    margin-top:6px;background:var(--green-700);color:var(--white);border:none;
    padding:14px 22px;border-radius:10px;font-weight:700;font-size:14.5px;
  }
  form .submit:hover{background:var(--green-900);}
  .form-note{font-size:12px;color:var(--ink-soft);margin-top:4px;}

  /* ---------- Footer ---------- */
  footer{background:var(--ink);color:#c9d1cb;padding:60px 0 30px;}
  .footer-grid{
    display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;
    padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,0.12);
  }
  @media (max-width:780px){.footer-grid{grid-template-columns:1fr 1fr;}}
  .footer-logo img{height:30px;filter:brightness(0) invert(1);}
  .footer-grid p{font-size:13.5px;color:#9aa39c;margin-top:14px;line-height:1.6;max-width:32ch;}
  .footer-col h6{font-size:12px;text-transform:uppercase;letter-spacing:.06em;color:#e9ece7;margin-bottom:16px;}
  .footer-col a{display:block;font-size:13.5px;color:#aab3a4;margin-bottom:11px;}
  .footer-col a:hover{color:var(--white);}
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;padding-top:24px;
    font-size:12.5px;color:#8a938c;flex-wrap:wrap;gap:10px;
  }

  .reveal{opacity:0;transform:translateY(16px);transition:opacity .6s ease, transform .6s ease;}
  .reveal.in{opacity:1;transform:translateY(0);}

  /* ---------- Auth button + modal ---------- */
  .nav-auth{
    display:flex;align-items:center;gap:14px;
  }
  .btn-login{
    font-size:14px;font-weight:600;color:var(--ink-soft);
    padding:10px 6px;background:none;border:none;
  }
  .btn-login:hover{color:var(--ink);}

  .modal-overlay{
    position:fixed;inset:0;background:rgba(16,18,16,0.55);
    display:none;align-items:center;justify-content:center;
    z-index:200;padding:20px;
  }
  .modal-overlay.open{display:flex;}
  .modal-box{
    background:var(--white);border-radius:18px;width:100%;max-width:420px;
    padding:34px 32px;position:relative;
    box-shadow:0 30px 60px -20px rgba(16,18,16,0.4);
    max-height:90vh;overflow-y:auto;
  }
  .modal-close{
    position:absolute;top:18px;right:18px;background:none;border:none;
    font-size:20px;color:var(--ink-soft);line-height:1;padding:4px;
  }
  .modal-close:hover{color:var(--ink);}
  .modal-tabs{
    display:flex;gap:4px;background:var(--paper-2);border-radius:999px;padding:4px;margin-bottom:26px;
  }
  .modal-tab{
    flex:1;text-align:center;padding:10px 0;border-radius:999px;border:none;background:none;
    font-size:13.5px;font-weight:700;color:var(--ink-soft);
  }
  .modal-tab.active{background:var(--green-700);color:var(--white);}
  .modal-box h3{font-size:21px;font-weight:700;margin-bottom:6px;}
  .modal-box .sub{font-size:13.5px;color:var(--ink-soft);margin-bottom:24px;}
  .modal-form{display:flex;flex-direction:column;gap:14px;}
  .field-error{font-size:11.5px;color:#b3261e;margin-top:-8px;display:none;}
  .field-error.show{display:block;}
  .modal-submit{
    margin-top:6px;background:var(--green-700);color:var(--white);border:none;
    padding:14px 22px;border-radius:10px;font-weight:700;font-size:14.5px;
  }
  .modal-submit:hover{background:var(--green-900);}
  .modal-note{font-size:11.5px;color:var(--ink-soft);text-align:center;margin-top:16px;}
  .modal-success{display:none;text-align:center;padding:20px 0;}
  .modal-success.show{display:block;}
  .modal-success .tick{
    width:56px;height:56px;border-radius:50%;background:var(--green-100);color:var(--green-700);
    display:flex;align-items:center;justify-content:center;font-size:26px;margin:0 auto 18px;
  }
  .modal-success h4{font-size:18px;font-weight:700;}
  .modal-success p{font-size:13.5px;color:var(--ink-soft);margin-top:8px;}
  .modal-success .summary{
    text-align:left;background:var(--paper-2);border-radius:10px;padding:16px 18px;margin-top:20px;font-size:13px;
  }
  .modal-success .summary div{display:flex;justify-content:space-between;padding:4px 0;}
  .modal-success .summary span:first-child{color:var(--ink-soft);}
  .modal-success .summary span:last-child{font-weight:600;}

/* ---------- Policy pages ---------- */
.policy-hero{
  padding:70px 0 40px;background:var(--paper-2);border-bottom:1px solid var(--line);
}
.policy-hero .wrap{max-width:820px;}
.policy-hero .breadcrumb{font-size:13px;color:var(--ink-soft);margin-bottom:14px;}
.policy-hero .breadcrumb a{color:var(--green-700);font-weight:600;}
.policy-hero h1{font-size:clamp(28px,4vw,42px);font-weight:700;}
.policy-hero .updated{margin-top:12px;font-size:13px;color:var(--ink-soft);}
.policy-body{padding:60px 0 100px;}
.policy-body .wrap{max-width:820px;}
.policy-body h2{
  font-size:20px;font-weight:700;margin-top:40px;margin-bottom:14px;
  padding-top:14px;border-top:1px solid var(--line);
}
.policy-body h2:first-child{border-top:none;padding-top:0;margin-top:0;}
.policy-body p{font-size:15px;line-height:1.75;color:var(--ink-soft);margin-bottom:14px;}
.policy-body ul{margin:0 0 14px;padding-left:22px;}
.policy-body li{font-size:15px;line-height:1.75;color:var(--ink-soft);margin-bottom:8px;}
.policy-body strong{color:var(--ink);}
.policy-body .org{
  background:var(--paper-2);border-radius:12px;padding:20px 22px;margin-bottom:30px;font-size:14px;color:var(--ink-soft);
}
.policy-body .org b{color:var(--ink);}
.policy-nav{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:40px;padding-top:30px;border-top:1px solid var(--line);
}
.policy-nav a{
  font-size:13px;font-weight:600;padding:9px 16px;border-radius:999px;border:1px solid var(--line);color:var(--ink-soft);
}
.policy-nav a.active{background:var(--green-700);color:var(--white);border-color:var(--green-700);}
.policy-nav a:hover{border-color:var(--green-600);color:var(--ink);}