:root {
  --blue:       #1a6db5;
  --blue-dark:  #145394;
  --blue-light: #e8f2fb;
  --white:      #ffffff;
  --gray-bg:    #f4f8fc;
  --gray-bd:    #cfe0f0;
  --text:       #1a2e3b;
  --muted:      #6b8fa3;
  --red:        #d94f4f;
  --green:      #1a9e6b;
}
*{margin:0;padding:0;box-sizing:border-box;}
body{font-family:'Nunito',sans-serif;background:var(--gray-bg);color:var(--text);min-height:100vh;display:flex;flex-direction:column;align-items:center;padding:1.5rem 1rem 4rem;}

.site-header{width:100%;max-width:760px;display:flex;align-items:center;gap:1rem;padding:.75rem 1rem;background:var(--white);border-radius:14px;border:1px solid var(--gray-bd);margin-bottom:1.5rem;box-shadow:0 2px 10px rgba(26,109,181,.07);}
.site-header img.logo{height:36px;object-fit:contain;}
.header-title{flex:1;text-align:right;font-size:.8rem;font-weight:700;color:var(--muted);letter-spacing:.04em;text-transform:uppercase;}

.page-title{width:100%;max-width:760px;margin-bottom:1.25rem;}
.page-title h1{font-size:1.45rem;font-weight:800;color:var(--text);}
.page-title p{color:var(--muted);font-size:.88rem;margin-top:.2rem;}

.eyes-grid{width:100%;max-width:760px;display:grid;grid-template-columns:1fr 1fr;gap:1rem;}
@media(max-width:560px){.eyes-grid{grid-template-columns:1fr;}}

.eye-card{background:var(--white);border-radius:14px;border:2px solid var(--gray-bd);padding:1.4rem 1.25rem;box-shadow:0 3px 14px rgba(26,109,181,.07);display:flex;flex-direction:column;gap:1rem;}
.eye-card-title{font-size:1rem;font-weight:800;color:var(--blue);display:flex;align-items:center;gap:.45rem;}

.field{display:flex;flex-direction:column;gap:.3rem;}
.field-label{font-size:.7rem;font-weight:700;letter-spacing:.07em;text-transform:uppercase;color:var(--muted);}
.field-sub{font-size:.78rem;font-weight:600;color:var(--muted);margin-top:-.15rem;margin-bottom:.1rem;line-height:1.35;}

.sign-btns{display:flex;gap:.4rem;margin-bottom:.2rem;}
.sign-btn{flex:1;padding:.45rem .5rem;border:2px solid var(--gray-bd);border-radius:8px;background:var(--white);color:var(--muted);font-family:'Nunito',sans-serif;font-size:.85rem;font-weight:800;cursor:pointer;transition:all .18s;text-align:center;}
.sign-btn:hover{border-color:var(--blue);color:var(--blue);}
.sign-btn.active-pos{border-color:var(--blue);background:var(--blue);color:var(--white);}
.sign-btn.active-neg{border-color:var(--red);background:var(--red);color:var(--white);}
.sign-btn.active-none{border-color:var(--muted);background:var(--muted);color:var(--white);}

.input-wrap{display:flex;align-items:stretch;border:2px solid var(--gray-bd);border-radius:9px;overflow:hidden;background:var(--white);transition:border-color .18s;}
.input-wrap:focus-within{border-color:var(--blue);}
.input-wrap.disabled{background:var(--gray-bg);opacity:.5;pointer-events:none;}
.sign-display{display:none;}

input[type="number"]{flex:1;border:none;padding:.65rem .8rem;font-family:'Nunito',sans-serif;font-size:.95rem;font-weight:600;color:var(--text);background:transparent;outline:none;-moz-appearance:textfield;min-width:0;}
input::-webkit-outer-spin-button,input::-webkit-inner-spin-button{-webkit-appearance:none;}
.suffix{padding:0 .7rem;color:var(--muted);font-size:.78rem;font-weight:700;display:flex;align-items:center;border-left:2px solid var(--gray-bd);background:var(--gray-bg);}
.err-msg{color:var(--red);font-size:.75rem;font-weight:700;display:none;}

.as-row{display:flex;gap:.5rem;align-items:center;}
.as-row input[type="number"]{border:2px solid var(--gray-bd);border-radius:9px;padding:.6rem .7rem;font-family:'Nunito',sans-serif;font-size:.95rem;font-weight:600;color:var(--text);width:80px;outline:none;transition:border-color .18s;background:var(--white);}
.as-row input[type="number"]:focus{border-color:var(--blue);}
.as-row input[type="number"]:disabled{background:var(--gray-bg);color:var(--muted);}
.as-unit{color:var(--muted);font-size:.82rem;font-weight:700;}
.btn-no-cyl{width:100%;padding:.5rem .85rem;border:2px solid var(--gray-bd);border-radius:9px;background:var(--white);color:var(--muted);font-family:'Nunito',sans-serif;font-size:.78rem;font-weight:700;cursor:pointer;transition:all .18s;text-align:center;margin-top:.2rem;}
.btn-no-cyl.sel{border-color:var(--blue);background:var(--blue-light);color:var(--blue-dark);}
.axis-field{transition:opacity .2s;}
.axis-field.hidden{display:none;}

.result-box{display:none;background:var(--blue-light);border:2px solid var(--blue);border-radius:10px;padding:1rem 1.1rem;animation:popIn .3s ease;}
.result-box.show{display:block;}
@keyframes popIn{from{opacity:0;transform:scale(.97) translateY(4px)}to{opacity:1;transform:scale(1) translateY(0)}}
.res-label{font-size:.68rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);margin-bottom:.25rem;}
.res-value{font-size:2.4rem;font-weight:800;color:var(--blue-dark);line-height:1;letter-spacing:-.03em;}
.res-dpt{font-size:1rem;font-weight:700;color:var(--muted);margin-left:.15rem;}
.res-sub{margin-top:.4rem;font-size:.78rem;color:var(--muted);}

.btn-calc{width:100%;max-width:760px;padding:.9rem;background:var(--blue);color:var(--white);border:none;border-radius:10px;font-family:'Nunito',sans-serif;font-size:1rem;font-weight:800;cursor:pointer;transition:all .18s;margin-top:.25rem;}
.btn-calc:hover{background:var(--blue-dark);transform:translateY(-1px);box-shadow:0 4px 16px rgba(26,109,181,.28);}
.btn-calc:active{transform:none;}
body.variant-kinder .btn-calc{padding:1rem 1.1rem;line-height:1.35;}

.summary-card{display:none;width:100%;max-width:760px;margin-top:1rem;background:var(--white);border-radius:14px;border:1px solid var(--gray-bd);padding:1.25rem 1.5rem;box-shadow:0 3px 14px rgba(26,109,181,.07);}
.summary-card.show{display:block;}
.summary-title{font-size:.72rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--muted);margin-bottom:.9rem;}
.summary-row{display:flex;justify-content:space-between;align-items:center;padding:.5rem 0;border-bottom:1px solid var(--gray-bd);}
.summary-row:last-child{border-bottom:none;}
.summary-eye{font-weight:700;color:var(--text);font-size:.9rem;}
.summary-se{font-size:1.4rem;font-weight:800;color:var(--blue);}
.summary-maatwerk{margin-top:1rem;padding-top:1rem;border-top:1px solid var(--gray-bd);}
.summary-maatwerk[hidden]{display:none;}
.summary-maatwerk-text{font-size:.9rem;line-height:1.5;color:var(--text);margin-bottom:.85rem;}
.summary-contact{list-style:none;padding:0;margin:0;}
.summary-contact li{font-size:.9rem;font-weight:700;color:var(--text);padding:.35rem 0;}
.summary-contact a{color:var(--blue);text-decoration:none;}
.summary-contact a:hover{text-decoration:underline;}

.email-section{display:none;width:100%;max-width:760px;margin-top:1rem;background:var(--white);border-radius:14px;border:1px solid var(--gray-bd);padding:1.4rem 1.5rem;box-shadow:0 3px 14px rgba(26,109,181,.07);}
.email-section.show{display:block;}
.email-title{font-size:1rem;font-weight:800;color:var(--text);margin-bottom:.2rem;}
.email-sub{font-size:.84rem;color:var(--muted);margin-bottom:.9rem;}
.email-row{display:flex;gap:.5rem;}
.email-row input[type="email"]{flex:1;padding:.7rem 1rem;border:2px solid var(--gray-bd);border-radius:9px;font-family:'Nunito',sans-serif;font-size:.95rem;font-weight:600;color:var(--text);outline:none;transition:border-color .18s;min-width:0;}
.email-row input[type="email"]:focus{border-color:var(--blue);}
.btn-send{padding:.7rem 1.2rem;background:var(--blue);color:var(--white);border:none;border-radius:9px;font-family:'Nunito',sans-serif;font-size:.9rem;font-weight:800;cursor:pointer;transition:all .18s;white-space:nowrap;}
.btn-send:hover{background:var(--blue-dark);}
.btn-send:disabled{background:var(--gray-bd);cursor:not-allowed;}
.email-status{margin-top:.55rem;font-size:.82rem;font-weight:700;min-height:1.1em;}
.email-status.ok{color:var(--green);}
.email-status.err{color:var(--red);}

.btn-reset{width:100%;max-width:760px;margin-top:1rem;padding:.65rem;background:transparent;border:2px solid var(--gray-bd);border-radius:10px;color:var(--muted);font-family:'Nunito',sans-serif;font-size:.85rem;font-weight:700;cursor:pointer;transition:all .18s;}
.btn-reset:hover{border-color:var(--blue);color:var(--blue);}

.suggestion-box{display:none;background:var(--white);border-radius:10px;border:2px solid var(--blue);padding:.9rem 1.1rem;margin-top:.75rem;}
.suggestion-box.show{display:block;}
.suggestion-label{font-size:.62rem;font-weight:700;letter-spacing:.09em;text-transform:uppercase;color:var(--blue);margin-bottom:.3rem;}
.suggestion-value{font-size:1.9rem;font-weight:800;color:var(--blue-dark);line-height:1;letter-spacing:-.03em;}
.suggestion-dpt{font-size:.9rem;font-weight:700;color:var(--muted);margin-left:.15rem;}
.suggestion-note{font-size:.72rem;color:var(--muted);margin-top:.3rem;}
.custom-warning{font-size:.92rem;font-weight:700;color:var(--red);line-height:1.45;margin-bottom:.75rem;}
.btn-contact{display:block;padding:.75rem .9rem;background:var(--blue);color:#fff;border-radius:9px;font-size:.85rem;font-weight:700;text-decoration:none;text-align:left;line-height:1.45;transition:background .18s;}
.btn-contact:hover{background:var(--blue-dark);}