:root{
    --bg:#16241F;
    --bg-alt:#1E332B;
    --surface:#213830;
    --surface-2:#28453A;
    --ink:#F3EFE3;
    --ink-dim:#C6C0AC;
    --gold:#E7B34B;
    --sage:#8FB8A0;
    --chalk-blue:#8FB8C7;
    --line: rgba(243,239,227,0.14);
    --line-strong: rgba(243,239,227,0.28);
    --radius: 14px;
    --maxw: 1180px;
  }
  *{box-sizing:border-box; margin:0; padding:0;}
  html{scroll-behavior:smooth;}
  body{
    background:
      linear-gradient(var(--line) 1px, transparent 1px),
      linear-gradient(90deg, var(--line) 1px, transparent 1px),
      var(--bg);
    background-size:42px 42px, 42px 42px, auto;
    background-attachment:fixed;
    color:var(--ink);
    font-family:'IBM Plex Sans', sans-serif;
    line-height:1.55;
    -webkit-font-smoothing:antialiased;
  }
  .skip-link{
    position:absolute; left:-999px; top:0; z-index:1000;
    background:var(--gold); color:var(--bg); padding:12px 20px; border-radius:0 0 8px 0;
    font-weight:600;
  }
  .skip-link:focus{ left:0; }
  .scroll-progress{
    position:fixed; top:0; left:0; height:2px; width:0%;
    background:var(--gold); z-index:200; transition:width .1s linear;
  }
  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto;}
    *{animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.001ms !important;}
  }
  h1,h2,h3,h4{
    font-family:'Fraunces', serif;
    font-weight:600;
    line-height:1.12;
    letter-spacing:-0.01em;
  }
  .eyebrow{
    font-family:'IBM Plex Mono', monospace;
    text-transform:uppercase;
    letter-spacing:0.14em;
    font-size:0.72rem;
    color:var(--gold);
    display:flex;
    align-items:center;
    gap:10px;
  }
  .eyebrow::before{
    content:"";
    width:22px; height:1px;
    background:var(--gold);
    display:inline-block;
  }
  a{color:inherit; text-decoration:none;}
  img{max-width:100%; display:block;}
  .wrap{max-width:var(--maxw); margin:0 auto; padding:0 28px;}
  ::selection{background:var(--gold); color:var(--bg);}

  /* focus visibility */
  a:focus-visible, button:focus-visible, input:focus-visible, select:focus-visible, textarea:focus-visible{
    outline:2px solid var(--gold);
    outline-offset:3px;
  }

  /* ---------- Header ---------- */
  header{
    position:sticky; top:0; z-index:100;
    background:rgba(22,36,31,0.86);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex; align-items:center; justify-content:space-between;
    padding:18px 28px;
    max-width:var(--maxw); margin:0 auto;
  }
  .logo{
    font-family:'Fraunces', serif;
    font-size:1.35rem;
    font-weight:600;
    display:flex; align-items:center; gap:9px;
  }
  .logo-mark{
    width:26px; height:26px;
    border:1.5px solid var(--gold);
    border-radius:4px;
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono', monospace;
    font-size:0.8rem;
    color:var(--gold);
    transform: rotate(-4deg);
  }
  .nav-links{
    display:flex; gap:34px; align-items:center;
    font-size:0.94rem;
  }
  .nav-links a{
    color:var(--ink-dim);
    transition:color .2s ease;
    position:relative;
  }
  .nav-links a:hover{color:var(--ink);}
  .nav-cta{
    background:var(--gold);
    color:var(--bg) !important;
    padding:10px 20px;
    border-radius:100px;
    font-weight:600;
    font-size:0.9rem;
    transition:transform .18s ease, box-shadow .18s ease;
  }
  .nav-cta:hover{ transform:translateY(-1px); box-shadow:0 6px 18px rgba(231,179,75,0.25); }
  .nav-cta-secondary{
    background:transparent !important;
    color:var(--gold) !important;
    border:1px solid var(--gold);
  }
  .nav-cta-secondary:hover{ background:rgba(231,179,75,0.1) !important; }
  .nav-toggle{
    display:none;
    background:none; border:1px solid var(--line-strong); border-radius:8px;
    color:var(--ink); width:40px; height:40px; font-size:1.1rem; cursor:pointer;
  }
  @media (max-width:860px){
    .nav-links{
      position:absolute; top:100%; left:0; right:0;
      background:var(--bg-alt);
      flex-direction:column; align-items:stretch;
      padding:18px 28px 26px;
      border-bottom:1px solid var(--line);
      display:none;
      gap:18px;
    }
    .nav-links.open{display:flex;}
    .nav-toggle{display:block;}
    .nav-cta{align-self:flex-start;}
  }

  /* ---------- Hero ---------- */
  .hero{
    position:relative;
    padding:96px 0 70px;
    overflow:hidden;
  }
  .hero-grid{
    display:grid;
    grid-template-columns:1.05fr 0.95fr;
    gap:48px;
    align-items:center;
  }
  @media (max-width:900px){
    .hero-grid{grid-template-columns:1fr;}
    .hero-visual{order:-1;}
  }
  .hero h1{
    font-size:clamp(2.2rem, 4.4vw, 3.4rem);
    margin:18px 0 20px;
    max-width:12ch;
  }
  .hero h1 em{
    font-style:normal;
    color:var(--gold);
  }
  .hero p.lede{
    color:var(--ink-dim);
    font-size:1.08rem;
    max-width:46ch;
    margin-bottom:32px;
  }
  .btn-row{ display:flex; gap:16px; flex-wrap:wrap; margin-bottom:38px;}
  .btn{
    display:inline-flex; align-items:center; gap:8px;
    padding:14px 26px;
    border-radius:100px;
    font-weight:600;
    font-size:0.96rem;
    transition:transform .18s ease, box-shadow .18s ease, background .18s ease;
    cursor:pointer;
    border:1px solid transparent;
  }
  .btn-primary{ background:var(--gold); color:var(--bg); }
  .btn-primary:hover{ transform:translateY(-1px); box-shadow:0 8px 22px rgba(231,179,75,0.25); }
  .btn-ghost{ border-color:var(--line-strong); color:var(--ink); }
  .btn-ghost:hover{ border-color:var(--gold); color:var(--gold); }

  .stat-row{
    display:flex; gap:34px; flex-wrap:wrap;
    padding-top:26px; border-top:1px solid var(--line);
  }
  .stat{ font-family:'IBM Plex Mono', monospace; }
  .stat b{ display:block; font-size:1.3rem; color:var(--gold); font-weight:600;}
  .stat span{ font-size:0.78rem; color:var(--ink-dim); }

  .hero-visual{
    position:relative;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:20px;
    aspect-ratio:1/1;
    display:flex; align-items:center; justify-content:center;
    overflow:hidden;
  }
  .hero-visual svg{width:100%; height:100%;}
  .float-symbol{
    position:absolute;
    font-family:'Fraunces', serif;
    color:var(--sage);
    opacity:0.35;
    animation:drift 7s ease-in-out infinite;
    user-select:none;
  }
  @keyframes drift{
    0%,100%{ transform:translateY(0px); }
    50%{ transform:translateY(-14px); }
  }
  .curve-path{
    stroke:var(--gold);
    stroke-width:2.4;
    fill:none;
    stroke-linecap:round;
    stroke-dasharray:600;
    stroke-dashoffset:600;
    animation:draw 2.4s cubic-bezier(.4,.1,.2,1) forwards 0.3s;
  }
  @keyframes draw{ to{ stroke-dashoffset:0; } }
  .grid-line{ stroke:var(--line); stroke-width:1; }
  .axis-line{ stroke:var(--line-strong); stroke-width:1.2; }

  /* ---------- Section shells ---------- */
  section{ padding:88px 0; border-top:1px solid var(--line); }
  .section-head{ max-width:640px; margin-bottom:48px; }
  .section-head h2{ font-size:clamp(1.7rem, 3vw, 2.3rem); margin-top:14px; }
  .section-head p{ color:var(--ink-dim); margin-top:14px; font-size:1.02rem; }

  /* ---------- About ---------- */
  .about-grid{
    display:grid; grid-template-columns: 0.8fr 1.2fr; gap:56px; align-items:start;
  }
  @media (max-width:860px){ .about-grid{grid-template-columns:1fr;} }
  .about-portrait{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    aspect-ratio:4/5;
    display:flex; align-items:center; justify-content:center;
    font-family:'IBM Plex Mono', monospace;
    color:var(--ink-dim);
    font-size:0.85rem;
    text-align:center;
    padding:20px;
  }
  .about-body p{ color:var(--ink-dim); margin-bottom:16px; max-width:60ch; }
  .credential-row{
    display:flex; flex-wrap:wrap; gap:12px; margin-top:26px;
  }
  .chip{
    border:1px solid var(--line-strong);
    border-radius:100px;
    padding:9px 16px;
    font-size:0.84rem;
    font-family:'IBM Plex Mono', monospace;
    color:var(--sage);
  }

  /* ---------- Courses ---------- */
  .tabs{ display:flex; gap:10px; flex-wrap:wrap; margin-bottom:34px; }
  .tab{
    padding:9px 18px;
    border-radius:100px;
    border:1px solid var(--line-strong);
    font-size:0.86rem;
    font-family:'IBM Plex Mono', monospace;
    cursor:pointer;
    color:var(--ink-dim);
    background:transparent;
    transition:all .18s ease;
  }
  .tab.active, .tab:hover{
    border-color:var(--gold); color:var(--gold);
  }
  .course-grid{
    display:grid;
    grid-template-columns:repeat(3, 1fr);
    gap:22px;
  }
  @media (max-width:900px){ .course-grid{grid-template-columns:repeat(2,1fr);} }
  @media (max-width:600px){ .course-grid{grid-template-columns:1fr;} }
  .course-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
    display:flex; flex-direction:column; gap:14px;
    transition:border-color .2s ease, transform .2s ease;
  }
  .course-card:hover{ border-color:var(--line-strong); transform:translateY(-3px); }
  .course-level{
    font-family:'IBM Plex Mono', monospace;
    font-size:0.72rem;
    text-transform:uppercase;
    letter-spacing:0.1em;
    color:var(--chalk-blue);
  }
  .course-card h3{ font-size:1.22rem; font-weight:500; }
  .course-meta{
    display:flex; flex-direction:column; gap:6px;
    font-size:0.86rem; color:var(--ink-dim);
    border-top:1px solid var(--line); padding-top:14px; margin-top:auto;
  }
  .course-meta span b{ color:var(--ink); font-weight:600; }
  .course-price{
    font-family:'IBM Plex Mono', monospace;
    font-size:1.15rem; color:var(--gold); font-weight:600;
  }
  .course-cta{
    margin-top:6px;
    text-align:center;
    padding:10px;
    border:1px solid var(--line-strong);
    border-radius:8px;
    font-size:0.86rem;
    font-weight:600;
    transition:all .2s ease;
  }
  .course-cta:hover{ background:var(--gold); border-color:var(--gold); color:var(--bg); }

  /* ---------- How it works ---------- */
  .steps{
    display:grid; grid-template-columns:repeat(3,1fr); gap:30px;
  }
  @media (max-width:860px){ .steps{grid-template-columns:1fr;} }
  .step{ position:relative; padding-top:8px; }
  .step-num{
    font-family:'Fraunces', serif;
    font-size:2.6rem;
    color:transparent;
    -webkit-text-stroke:1.4px var(--line-strong);
    line-height:1;
    margin-bottom:10px;
  }
  .step h3{ font-size:1.1rem; font-weight:500; margin-bottom:8px; }
  .step p{ color:var(--ink-dim); font-size:0.94rem; }
  .payment-note{
    margin-top:44px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:24px 28px;
    display:flex; gap:16px; align-items:flex-start;
  }
  .payment-note .icon{
    font-family:'IBM Plex Mono', monospace;
    color:var(--gold); font-size:1.1rem; flex-shrink:0;
  }
  .payment-note p{ color:var(--ink-dim); font-size:0.92rem; }
  .payment-note strong{ color:var(--ink); }

  /* ---------- Testimonials ---------- */
  .testi-grid{
    display:grid; grid-template-columns:repeat(3,1fr); gap:22px;
  }
  @media (max-width:900px){ .testi-grid{grid-template-columns:1fr;} }
  .testi-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:26px;
  }
  .testi-card p{ font-style:italic; color:var(--ink); margin-bottom:18px; font-size:0.98rem; }
  .testi-name{ font-family:'IBM Plex Mono', monospace; font-size:0.8rem; color:var(--sage); }

  /* ---------- Blog ---------- */
  .blog-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:22px; }
  @media (max-width:900px){ .blog-grid{grid-template-columns:1fr;} }
  .blog-card{
    border:1px solid var(--line);
    border-radius:var(--radius);
    overflow:hidden;
    background:var(--surface);
  }
  .blog-thumb{
    aspect-ratio:16/10;
    background:linear-gradient(135deg, var(--surface-2), var(--surface));
    display:flex; align-items:center; justify-content:center;
    font-family:'Fraunces', serif; font-size:2.4rem; color:var(--line-strong);
  }
  .blog-body{ padding:20px; }
  .blog-tag{ font-family:'IBM Plex Mono', monospace; font-size:0.7rem; color:var(--gold); text-transform:uppercase; letter-spacing:0.08em; }
  .blog-body h3{ font-size:1.02rem; font-weight:500; margin:10px 0 8px; }
  .blog-body p{ color:var(--ink-dim); font-size:0.88rem; }

  /* ---------- FAQ ---------- */
  .faq-list{ max-width:760px; }
  .faq-item{ border-top:1px solid var(--line); }
  .faq-item:last-child{ border-bottom:1px solid var(--line); }
  .faq-q{
    width:100%; background:none; border:none; cursor:pointer;
    display:flex; justify-content:space-between; align-items:center;
    padding:22px 4px; color:var(--ink); font-size:1.02rem; font-family:'IBM Plex Sans', sans-serif;
    text-align:left;
  }
  .faq-icon{
    font-family:'IBM Plex Mono', monospace; color:var(--gold); font-size:1.2rem;
    transition:transform .25s ease; flex-shrink:0; margin-left:16px;
  }
  .faq-q[aria-expanded="true"] .faq-icon{ transform:rotate(45deg); }
  .faq-a{
    max-height:0; overflow:hidden; transition:max-height .3s ease, padding .3s ease;
  }
  .faq-a p{ color:var(--ink-dim); padding:0 4px 22px; font-size:0.94rem; max-width:60ch; }

  /* ---------- Contact ---------- */
  .contact-grid{
    display:grid; grid-template-columns:0.9fr 1.1fr; gap:56px;
  }
  @media (max-width:900px){ .contact-grid{grid-template-columns:1fr;} }
  .contact-info p{ color:var(--ink-dim); margin-bottom:22px; max-width:44ch; }
  .info-line{
    display:flex; gap:12px; align-items:center;
    padding:14px 0; border-top:1px solid var(--line);
    font-size:0.94rem;
  }
  .info-line:last-child{ border-bottom:1px solid var(--line); }
  .info-line .k{ font-family:'IBM Plex Mono', monospace; color:var(--gold); width:96px; flex-shrink:0; font-size:0.78rem; text-transform:uppercase; letter-spacing:0.06em;}

  form{ display:flex; flex-direction:column; gap:16px; }
  .form-row{ display:grid; grid-template-columns:1fr 1fr; gap:16px; }
  @media (max-width:560px){ .form-row{grid-template-columns:1fr;} }
  label{ font-size:0.82rem; color:var(--ink-dim); margin-bottom:6px; display:block; font-family:'IBM Plex Mono', monospace; }
  input, select, textarea{
    width:100%;
    background:var(--surface);
    border:1px solid var(--line-strong);
    border-radius:8px;
    padding:12px 14px;
    color:var(--ink);
    font-family:'IBM Plex Sans', sans-serif;
    font-size:0.94rem;
  }
  input::placeholder, textarea::placeholder{ color:#8a8677; }
  textarea{ resize:vertical; min-height:100px; }
  .submit-btn{
    align-self:flex-start;
    background:var(--gold);
    color:var(--bg);
    border:none;
    padding:14px 28px;
    border-radius:100px;
    font-weight:600;
    cursor:pointer;
    font-size:0.96rem;
    transition:transform .18s ease, box-shadow .18s ease;
  }
  .submit-btn:hover{ transform:translateY(-1px); box-shadow:0 8px 22px rgba(231,179,75,0.25); }
  .form-note{ font-size:0.8rem; color:var(--ink-dim); margin-top:-4px; }
  .form-success{
    display:none;
    background:rgba(143,184,160,0.12);
    border:1px solid var(--sage);
    color:var(--sage);
    padding:14px 16px;
    border-radius:8px;
    font-size:0.9rem;
  }

  /* ---------- Footer ---------- */
  footer{
    border-top:1px solid var(--line);
    padding:40px 0;
  }
  .foot-row{
    display:flex; justify-content:space-between; align-items:center; flex-wrap:wrap; gap:18px;
    font-size:0.86rem; color:var(--ink-dim);
  }
  .foot-links{ display:flex; gap:22px; }
  .foot-links a:hover{ color:var(--gold); }

  /* ---------- WhatsApp floating button ---------- */
  .wa-float{
    position:fixed;
    bottom:24px; right:24px;
    z-index:150;
    width:58px; height:58px;
    border-radius:50%;
    background:#25D366;
    display:flex; align-items:center; justify-content:center;
    box-shadow:0 8px 24px rgba(0,0,0,0.35);
    transition:transform .2s ease, box-shadow .2s ease;
  }
  .wa-float:hover{ transform:translateY(-3px) scale(1.05); box-shadow:0 12px 30px rgba(0,0,0,0.4); }
  .wa-float svg{ width:30px; height:30px; }
  .wa-tooltip{
    position:absolute;
    right:70px; top:50%; transform:translateY(-50%);
    background:var(--surface);
    border:1px solid var(--line-strong);
    color:var(--ink);
    padding:8px 14px;
    border-radius:8px;
    font-size:0.82rem;
    white-space:nowrap;
    opacity:0; pointer-events:none;
    transition:opacity .2s ease;
    font-family:'IBM Plex Sans', sans-serif;
  }
  .wa-float:hover .wa-tooltip{ opacity:1; }
  @media (max-width:600px){
    .wa-float{ bottom:18px; right:18px; width:52px; height:52px; }
    .wa-tooltip{ display:none; }
  }

  /* ---------- Teza cards ---------- */
  .teza-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius);
    padding:22px;
    display:flex; flex-direction:column; gap:10px;
  }
  .teza-card .teza-year{
    font-family:'IBM Plex Mono', monospace;
    font-size:1.4rem; color:var(--gold); font-weight:600;
  }
  .teza-card h3{ font-size:1.05rem; font-weight:500; }
  .teza-card .teza-meta{ font-size:0.82rem; color:var(--ink-dim); }
  .teza-download{
    margin-top:auto;
    text-align:center;
    padding:10px;
    border:1px solid var(--line-strong);
    border-radius:8px;
    font-size:0.86rem;
    font-weight:600;
    transition:all .2s ease;
  }
  .teza-download:hover{ background:var(--gold); border-color:var(--gold); color:var(--bg); }

  /* ---------- MATLAB banner ---------- */
  .matlab-banner{
    display:flex;
    align-items:center;
    gap:28px;
    background:linear-gradient(135deg, var(--surface) 0%, var(--surface-2) 100%);
    border:1px solid var(--line-strong);
    border-radius:18px;
    padding:32px 36px;
    position:relative;
    overflow:hidden;
  }
  .matlab-banner::before{
    content:"";
    position:absolute; top:0; left:0; right:0; height:3px;
    background:linear-gradient(90deg, var(--chalk-blue), var(--gold), var(--sage));
  }
  .matlab-banner-icon{
    flex-shrink:0;
    width:64px; height:64px;
    background:var(--bg);
    border:1px solid var(--line-strong);
    border-radius:14px;
    display:flex; align-items:center; justify-content:center;
  }
  .matlab-banner-text{ flex:1; min-width:0; }
  .matlab-banner-text h3{ font-size:1.25rem; font-weight:500; margin-bottom:8px; }
  .matlab-banner-text p{ color:var(--ink-dim); font-size:0.94rem; max-width:62ch; }
  .matlab-banner-cta{ flex-shrink:0; white-space:nowrap; }
  @media (max-width:760px){
    .matlab-banner{ flex-direction:column; align-items:flex-start; text-align:left; padding:26px; }
    .matlab-banner-cta{ align-self:stretch; text-align:center; }
  }

  /* ---------- Status badges (paneli student) ---------- */
  .status-badge{
    display:inline-block; padding:3px 10px; border-radius:100px;
    font-family:'IBM Plex Mono', monospace; font-size:0.72rem; text-transform:uppercase; letter-spacing:0.04em;
  }
  .status-pending{ background:rgba(231,179,75,0.15); color:var(--gold); }
  .status-approved{ background:rgba(143,184,160,0.15); color:var(--sage); }
  .status-rejected{ background:rgba(224,136,136,0.15); color:#e08888; }
  .admin-note{
    margin-top:8px; padding:10px 12px; border-radius:8px;
    background:rgba(224,136,136,0.08); border-left:2px solid #e08888;
    font-size:0.82rem; color:var(--ink-dim);
  }
  .status-e_re{ background:rgba(143,184,199,0.15); color:var(--chalk-blue); }
  .status-kontaktuar{ background:rgba(231,179,75,0.15); color:var(--gold); }
  .status-mbyllur{ background:rgba(143,184,160,0.15); color:var(--sage); }

  /* reveal on scroll */
  .reveal{ opacity:0; transform:translateY(18px); transition:opacity .6s ease, transform .6s ease; }
  .reveal.in{ opacity:1; transform:translateY(0); }