:root{
  --bg-1:#071024;
  --glass:rgba(255,255,255,0.06);
  --muted:rgba(255,255,255,0.7);
  --accent-1:#7dd3fc;
  --accent-2:#60a5fa;
  --success:#22c55e;
  --danger:#ff6b6b;
  --radius:12px;
  --max-width:1100px;
}

/* Reset / base */
*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,ui-sans-serif,system-ui,-apple-system,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
  background:
    radial-gradient(1200px 600px at 10% 10%, rgba(96,165,250,0.12), transparent),
    radial-gradient(900px 500px at 90% 90%, rgba(125,211,252,0.08), transparent),
    linear-gradient(180deg,var(--bg-1),#071b2a 60%);
  color:#e6eef6;
  -webkit-font-smoothing:antialiased;
  font-size:19px;
  line-height:1.55;
}

.page-bg{min-height:100vh;padding:32px 18px}
.center-wrap{max-width:var(--max-width);margin:0 auto}

.hero{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-bottom:18px}
.brand{display:flex;align-items:center;gap:12px}
.logo{width:64px;height:64px;flex-shrink:0;filter:drop-shadow(0 6px 18px rgba(0,0,0,0.6))}
.title{font-size:28px;margin:0}
.accent{background:linear-gradient(90deg,var(--accent-1),var(--accent-2));-webkit-background-clip:text;background-clip:text;color:transparent;font-weight:700}
.subtitle{margin:0;color:var(--muted)}
.hint{font-size:13px;color:rgba(255,255,255,0.55)}

.card{border-radius:18px;padding:22px;background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));box-shadow:0 10px 40px rgba(2,6,23,0.6);border:1px solid rgba(255,255,255,0.03)}
.glass{background:var(--glass);-webkit-backdrop-filter:blur(14px) saturate(120%);backdrop-filter:blur(14px) saturate(120%);border:1px solid rgba(255,255,255,0.04)}
.section-title{font-size:21px;margin:0 0 14px 0;text-align:center}
.form{display:flex;flex-direction:column;gap:14px}
fieldset{border:0;padding:0;margin:0}
.legend{font-weight:700;margin-bottom:10px;font-size:19px}

/* Progress */
.progress{width:100%;margin-bottom:12px}
.progress-bar{height:8px;background:rgba(255,255,255,0.04);border-radius:999px;overflow:hidden}
.progress-fill{height:100%;width:0%;transition:width .36s ease;background:linear-gradient(90deg,var(--accent-1),var(--accent-2));box-shadow:0 6px 18px rgba(96,165,250,0.08)}

/* Grid + fields */
.grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px}
.grid.two-col{grid-template-columns:repeat(2,1fr)}
.field{display:flex;flex-direction:column}
.field>.label-text{font-size:17px;font-weight:600;margin-bottom:8px}

/* Inputs */
input[type=text],input[type=url],input[type=number],input[type=date],select,textarea{
  background:transparent;
  border:1px solid rgba(255,255,255,0.06);
  padding:14px 16px;
  border-radius:12px;
  color:inherit;
  font-size:17px;
}
textarea{min-height:90px;resize:vertical}
input::placeholder,textarea::placeholder{color:rgba(230,238,246,0.55)}

/* Custom select styling */
select {
  background-color: rgba(7,16,36,0.95);
  color: #e6eef6;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 14px 44px 14px 16px;
  font-size: 17px;
  appearance: none;
  -webkit-appearance: none;
  -moz-appearance: none;
  background-image: url("data:image/svg+xml;utf8,<svg fill='%23e6eef6' height='24' viewBox='0 0 24 24' width='24' xmlns='http://www.w3.org/2000/svg'><path d='M7 10l5 5 5-5z'/></svg>");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
}

select option {
  background-color: #0d2436;
  color: #e6eef6;
}
select option:hover {
  background-color: #1e3a5f;
  color: #ffffff;
}

/* Checkbox / Radio base */
input[type=checkbox],input[type=radio]{
  transform:scale(1.1);
  margin:0;
  width:20px;
  height:20px;
  flex:0 0 auto;
  accent-color:#60a5fa;
  cursor:pointer;
}

/* Right-aligned checkboxes/radios */
.checkbox-row,
.checkbox-grid label,
.radio-inline label {
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  cursor:pointer;
  width:100%;
  padding:8px 6px;
  white-space:normal;
  color:inherit;
  font-size:16.5px;
}

.checkbox-row input,
.checkbox-grid input,
.radio-inline input {
  order:2;
  margin-left:12px;
}

.checkbox-row .label-text,
.checkbox-grid label > span,
.radio-inline label > span {
  order:1;
  flex:1 1 auto;
  text-align:left;
}

.checkbox-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.checkbox-grid.wide{grid-template-columns:repeat(3,1fr)}
.checkbox-grid label { padding:8px 12px; border-radius:8px; }

/* small-date styling */
.small-date{max-width:220px}

/* Focus outlines */
input:focus,select:focus,textarea:focus{outline:none;box-shadow:0 6px 22px rgba(96,165,250,0.12);border-color:rgba(125,211,252,0.4)}
:focus{outline:3px solid rgba(125,211,252,0.12);outline-offset:3px}

/* Step visibility */
.step{transition:opacity .28s ease, transform .28s ease}
.step[hidden]{display:none}

/* Buttons */
.actions{display:flex;gap:14px;align-items:center;justify-content:space-between;margin-top:16px;position:relative;z-index:60}
#estimateDisplay {
  font-weight:700;
  color:var(--success);
  min-width:240px;
  max-width:55%;
  font-size:16px;
  background:rgba(255,255,255,0.02);
  padding:12px 14px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.03);
}
.buttons{display:flex;gap:12px;align-items:center}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:14px 22px;
  min-width:104px;
  border-radius:10px;
  border:0;
  background:transparent;
  color:var(--muted);
  cursor:pointer;
  font-weight:700;
  font-size:16.5px;
  position:relative;
  z-index:70;
  -webkit-tap-highlight-color:rgba(0,0,0,0);
}
.btn.ghost{border:1px solid rgba(255,255,255,0.06);background:rgba(255,255,255,0.02);color:#e8f7ff}
.btn.primary{background:linear-gradient(90deg,var(--accent-1),var(--accent-2));color:#042a2b;box-shadow:0 8px 24px rgba(96,165,250,0.12)}
.btn:hover{transform:translateY(-3px)}
.btn[disabled]{opacity:.5;cursor:not-allowed;transform:none}

/* Estimates & legal */
.estimate{font-weight:700;color:var(--success);grid-column:1/-1;font-size:1.1rem}
.legal{font-size:13px;color:rgba(255,255,255,0.55);margin-top:8px}
.footer{display:flex;justify-content:center;margin-top:16px;color:rgba(255,255,255,0.45);font-size:14px}

/* Toast */
.toast{position:fixed;right:20px;bottom:20px;padding:14px 18px;border-radius:10px;background:rgba(2,6,23,0.88);color:#e6eef6;box-shadow:0 8px 30px rgba(2,6,23,0.6);opacity:0;transform:translateY(10px);transition:all .36s;z-index:9999}
.toast.show{opacity:1;transform:translateY(0)}

/* Required labels */
.label-text.is-required::after {
  content:"*";
  color:var(--danger);
  font-weight:800;
  margin-left:6px;
}

/* Invalid field */
.field.invalid input,
.field.invalid textarea,
.field.invalid select {
  box-shadow:0 0 0 4px rgba(255,99,71,0.12);
  border-color:rgba(255,99,71,0.6);
}

/* Responsive */
@media (max-width:900px){
  .grid{grid-template-columns:1fr}
  .checkbox-grid{grid-template-columns:1fr}
  .checkbox-grid.wide{grid-template-columns:repeat(2,1fr)}
  .title{font-size:24px}
  body{font-size:17px;line-height:1.5}
  #estimateDisplay{max-width:60%}
}
@media (max-width:420px){
  .hero{flex-direction:column;align-items:flex-start;gap:8px}
  .actions{flex-direction:column;align-items:stretch}
  #estimateDisplay{order:0;width:100%}
  .buttons{order:1;flex-direction:column;gap:10px}
  .btn{width:100%}
  body{font-size:16.5px;line-height:1.5}
}
@media print{
  body{background:#fff;color:#000}
  .card,.glass{background:transparent;box-shadow:none;border:none}
  .toast{display:none}
}