:root{
    --accent:#1D6F8C;
    --accent-dark:#154F63;
    --ink:#20302E;
    --paper:#FFFFFF;
    --tint:#EEF5F5;
    --line:#D8E4E3;
    box-sizing:border-box;
  }
  *{box-sizing:inherit;margin:0;padding:0;}
  html{scroll-behavior:smooth;}
  body{
    font-family:Verdana, Tahoma, Geneva, sans-serif;
    color:var(--ink);
    background:var(--paper);
    line-height:1.6;
    font-size:18px;
  }
  h1,h2,h3{
    font-family:Georgia,'Times New Roman',serif;
    line-height:1.25;
    font-weight:700;
  }
  a{color:inherit;}
  ul{list-style:none;}
  .wrap{max-width:960px;margin:0 auto;padding:0 24px;}
  section{padding:56px 0;}

  /* Header / nav */
  header.site{
    position:sticky;
    top:0;
    z-index:10;
    background:var(--paper);
    border-bottom:1px solid var(--line);
  }
  .nav{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 24px;
    max-width:960px;
    margin:0 auto;
    flex-wrap:wrap;
  }
  .logo{
    font-family:Georgia,serif;
    font-size:22px;
    font-weight:bold;
    color:var(--accent-dark);
    text-decoration:none;
  }
  .nav-links{
    display:flex;
    gap:24px;
    flex-wrap:wrap;
  }
  .nav-links a{
    text-decoration:none;
    font-size:16px;
    color:var(--ink);
    padding:6px 2px;
    border-bottom:2px solid transparent;
  }
  .nav-links a:hover, .nav-links a:focus{border-bottom-color:var(--accent);}
  .nav-phone{
    font-size:16px;
    font-weight:bold;
    color:var(--accent-dark);
    text-decoration:none;
    white-space:nowrap;
  }

  /* Hero */
  .hero{
    background:var(--tint);
    padding:56px 0;
  }
  .hero h1{font-size:clamp(26px,4.5vw,36px); color:var(--accent-dark); margin-bottom:12px;}
  .hero p{font-size:18px; max-width:52ch; color:#3A4A48; margin-bottom:28px;}
  .hero-actions{display:flex; gap:16px; flex-wrap:wrap;}

  .btn{
    display:inline-block;
    background:var(--accent);
    color:#fff;
    text-decoration:none;
    font-family:Verdana, Tahoma, Geneva, sans-serif;
    font-size:18px;
    font-weight:bold;
    padding:16px 32px;
    border-radius:10px;
    border:none;
    cursor:pointer;
    transition:background .2s ease;
  }
  .btn:hover, .btn:focus{background:var(--accent-dark);}
  .btn:focus-visible{outline:3px solid var(--accent-dark); outline-offset:3px;}
  .btn.secondary{
    background:var(--paper);
    color:var(--accent-dark);
    border:2px solid var(--accent);
  }
  .btn.secondary:hover, .btn.secondary:focus{background:var(--tint);}

  section h2{font-size:26px; color:var(--accent-dark); margin-bottom:12px;}
  section .lead{font-size:17px; color:#3A4A48; margin-bottom:32px; max-width:60ch;}

  /* Catalog / cart */
  .catalog{background:var(--paper);}
  .cart{
    max-width:640px;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:12px;
    padding:8px 24px;
  }
  .cart-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:16px 0;
    border-bottom:1px solid var(--line);
  }
  .cart-row:last-of-type{border-bottom:none;}
  .cart-row .name{font-size:17px; flex:1 1 auto;}
  .cart-row .price{font-size:16px; color:#5A6866; width:88px; text-align:right;}
  .qty{display:flex; align-items:center; gap:8px;}
  .qty button{
    width:36px;height:36px;
    border-radius:8px;
    border:1px solid var(--line);
    background:var(--tint);
    color:var(--accent-dark);
    font-size:20px;
    line-height:1;
    cursor:pointer;
  }
  .qty button:hover, .qty button:focus{background:var(--accent); color:#fff;}
  .qty button:focus-visible{outline:3px solid var(--accent-dark); outline-offset:2px;}
  .qty .count{width:24px; text-align:center; font-size:16px;}
  .cart-total{
    display:flex;
    justify-content:space-between;
    align-items:center;
    padding:20px 0 8px;
    font-size:19px;
    font-weight:bold;
    color:var(--accent-dark);
  }
  .cart-total .btn{font-size:16px; padding:12px 26px;}
  #orderStatus{
    margin-top:16px;
    font-size:16px;
    color:var(--accent-dark);
  }

  /* Subscription and checkout */
  .payments{background:var(--tint);}
  .subscription-plans{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(240px,1fr));
    gap:20px;
    max-width:640px;
  }
  .subscription-plan{
    padding:24px;
    border:1px solid var(--line);
    border-radius:12px;
    background:var(--paper);
  }
  .subscription-plan h3{font-size:20px;color:var(--accent-dark);}
  .subscription-price{
    margin:12px 0 20px;
    font-size:28px;
    font-weight:bold;
    color:var(--accent-dark);
  }
  .subscription-price span{font-size:16px;font-weight:normal;color:#5A6866;}
  .subscription-btn{width:100%;}
  .payment-status{margin-top:16px;color:var(--accent-dark);}
  .subscription-consent{
    display:flex;
    align-items:flex-start;
    gap:10px;
    margin:16px 0;
    text-align:left;
    font-size:14px;
    color:var(--ink);
  }
  .subscription-consent input{margin-top:5px;flex:0 0 auto;}

  /* Volunteer call */
  .volunteer{background:var(--tint);}
  .volunteer-box{
    max-width:640px;
    background:var(--paper);
    border:1px solid var(--line);
    border-radius:12px;
    padding:28px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    flex-wrap:wrap;
  }
  .volunteer-box p{font-size:16px; color:#3A4A48; margin:0; max-width:36ch;}
  #callStatus{
    margin-top:14px;
    font-size:16px;
    color:var(--accent-dark);
    display:none;
  }

  /* How it works */
  .how{background:var(--paper);}
  .steps{display:grid; grid-template-columns:repeat(3,1fr); gap:28px;}
  .step{text-align:left;}
  .step .icon{
    width:56px;height:56px;
    margin-bottom:14px;
    background:var(--accent);
    border-radius:50%;
    display:flex;align-items:center;justify-content:center;
    color:#fff;font-size:24px;font-family:Georgia,serif;
  }
  .step h3{font-size:18px; color:var(--accent-dark); margin-bottom:6px;}
  .step p{font-size:16px; color:#3A4A48;}

  /* Team */
  .team{background:var(--tint);}
  .members{display:grid; grid-template-columns:repeat(auto-fit,minmax(140px,1fr)); gap:28px;}
  .member{text-align:center;}
  .member .avatar{
    width:80px;height:80px;border-radius:50%;
    background:var(--paper);
    border:2px solid var(--accent);
    margin:0 auto 12px;
    display:flex;align-items:center;justify-content:center;
    font-family:Georgia,serif;font-size:24px;color:var(--accent-dark);
  }
  .member h3{font-size:17px; margin-bottom:4px;}
  .member p{font-size:15px; color:#5A6866;}

  /* Footer */
  footer{
    background:var(--accent-dark);
    color:#fff;
    padding:40px 0;
  }
  .footer-wrap{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    gap:24px;
    flex-wrap:wrap;
  }
  footer .logo{color:#fff; font-size:20px;}
  footer .foot-links{display:flex; gap:20px; flex-wrap:wrap;}
  footer .foot-links a{text-decoration:none; color:#DCE9E8; font-size:15px;}
  footer .foot-links a:hover, footer .foot-links a:focus{color:#fff;}
  footer .copy{font-size:14px; color:#B7CDCC; margin-top:24px;}

  @media (max-width:720px){
    section{padding:40px 0;}
    .steps, .members{grid-template-columns:1fr;}
    .cart-row{flex-wrap:wrap;}
    .cart-row .name{flex:1 1 100%;}
    .cart-total{flex-direction:column; gap:14px; align-items:flex-start;}
    .volunteer-box{flex-direction:column; align-items:flex-start;}
  }

  /* Mail choice modal */
  .mail-modal[hidden]{display:none;}
  .mail-modal{
    position:fixed;
    inset:0;
    z-index:100;
    display:flex;
    align-items:center;
    justify-content:center;
    padding:20px;
  }
  .mail-modal-backdrop{
    position:absolute;
    inset:0;
    background:rgba(20,40,40,0.45);
  }
  .mail-modal-box{
    position:relative;
    background:var(--paper);
    border-radius:14px;
    padding:32px 28px;
    max-width:460px;
    width:100%;
    text-align:center;
    box-shadow:0 12px 32px rgba(0,0,0,0.18);
    max-height:calc(100vh - 40px);
    overflow-y:auto;
  }
  .mail-modal-box h3{
    font-size:20px;
    color:var(--accent-dark);
    margin-bottom:20px;
  }
  .mail-modal-options{
    display:flex;
    flex-direction:column;
    gap:12px;
    margin-bottom:16px;
  }
  .mail-modal-options .btn{width:100%;}
  .mail-modal-close{
    background:none;
    border:none;
    color:#5A6866;
    font-size:15px;
    cursor:pointer;
    text-decoration:underline;
    padding:6px;
  }
  .mail-modal-close:hover, .mail-modal-close:focus{color:var(--accent-dark);}
  .request-field{
    display:block;
    margin-bottom:14px;
    text-align:left;
    font-size:15px;
    font-weight:bold;
    color:var(--ink);
  }
  .request-field[hidden], .subscription-consent[hidden]{display:none;}
  .request-field input, .request-field textarea{
    display:block;
    width:100%;
    margin-top:5px;
    padding:10px 12px;
    border:1px solid var(--line);
    border-radius:8px;
    color:var(--ink);
    font:inherit;
    font-size:16px;
  }
  .request-field input:focus, .request-field textarea:focus{
    outline:3px solid rgba(29,111,140,0.25);
    border-color:var(--accent);
  }
  .request-field textarea{resize:vertical;}
  .request-actions{display:flex;flex-direction:column;gap:8px;}
  .request-actions .btn{width:100%;}

  @media (prefers-reduced-motion:reduce){
    html{scroll-behavior:auto;}
    .btn{transition:none;}
  }