/* ============================================================
   3DFE Quote Calculator — v1.2 Light Theme
   Palette: beige #f5f3ef / bianco #fff / arancio #ff5500
   Font: Bebas Neue (titoli) + Inter (corpo)
============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Inter:wght@300;400;500;600&display=swap');

:root {
  --acc:    #ff5500;
  --acc2:   #ff7700;
  --bg:     #f5f3ef;
  --surf:   #ffffff;
  --surf2:  #f0ede8;
  --bord:   #e0dbd4;
  --bord2:  #ccc7bf;
  --text:   #1a1714;
  --muted:  #7a756e;
  --muted2: #a09a92;
  --ok:     #16a34a;
  --warn:   #d97706;
  --info:   #2563eb;
  --rad:    12px;
  --rads:   7px;
  --shadow: 0 2px 20px rgba(0,0,0,.08);
  --tr:     .25s cubic-bezier(.4,0,.2,1);
}

/* ── Wrap ─────────────────────────────────────────────── */
.tdfe-calc-wrap {
  font-family: 'Inter', sans-serif;
  background: var(--bg);
  color: var(--text);
  border-radius: 20px;
  overflow: hidden;
  border: 1px solid var(--bord);
  max-width: 900px;
  margin: 0 auto;
  box-shadow: var(--shadow);
}

/* ── Steps ────────────────────────────────────────────── */
.tdfe-steps {
  display: flex;
  align-items: center;
  padding: 22px 32px 18px;
  background: var(--surf);
  border-bottom: 1px solid var(--bord);
}
.tdfe-step {
  display: flex; flex-direction: column; align-items: center;
  gap: 3px; flex-shrink: 0; opacity: .3; transition: opacity var(--tr);
}
.tdfe-step.active { opacity: 1; }
.tdfe-step.done   { opacity: .7; }
.tdfe-step-num {
  font-family: 'Bebas Neue', sans-serif;
  font-size: 20px; color: var(--muted2); line-height: 1; transition: color var(--tr);
}
.tdfe-step.active .tdfe-step-num { color: var(--acc); }
.tdfe-step.done   .tdfe-step-num { color: var(--ok); }
.tdfe-step-label {
  font-size: 9px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 1.5px; color: var(--muted2); transition: color var(--tr);
}
.tdfe-step.active .tdfe-step-label { color: var(--text); }
.tdfe-step-connector { flex: 1; height: 1px; background: var(--bord); margin: 0 10px 16px; }

/* ── Panels ───────────────────────────────────────────── */
.tdfe-panel { display: none; padding: 32px; animation: tdfeFadeIn .3s ease; }
.tdfe-panel.active { display: block; }
@keyframes tdfeFadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── Panel header ─────────────────────────────────────── */
.tdfe-panel-header { margin-bottom: 28px; }
.tdfe-panel-tag {
  font-family: 'Bebas Neue', sans-serif; font-size: 10px;
  letter-spacing: 3px; color: var(--acc); display: block; margin-bottom: 6px;
}
.tdfe-panel-header h2 {
  font-family: 'Bebas Neue', sans-serif; font-size: 32px;
  letter-spacing: 1px; margin: 0 0 6px; color: var(--text); line-height: 1.1;
}
.tdfe-panel-header p { color: var(--muted); font-size: 13px; margin: 0; }

/* ── Section title ────────────────────────────────────── */
.tdfe-section-title {
  font-family: 'Bebas Neue', sans-serif; font-size: 15px; letter-spacing: 2px;
  color: var(--muted); margin: 24px 0 12px; display: flex; align-items: center;
  gap: 10px; text-transform: uppercase;
}
.tdfe-section-title::after { content: ''; flex: 1; height: 1px; background: var(--bord); }

/* ══ STEP 1: TECH GRID ════════════════════════════════ */
.tdfe-tech-grid { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
@media (max-width: 600px) { .tdfe-tech-grid { grid-template-columns: 1fr; } }

.tdfe-tech-card { cursor: pointer; display: block; }
.tdfe-tech-card input { display: none; }
.tdfe-tech-inner {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: var(--rad);
  padding: 20px; transition: all var(--tr); height: 100%; box-sizing: border-box;
}
.tdfe-tech-card input:checked ~ .tdfe-tech-inner {
  border-color: var(--acc); background: #fff8f5;
  box-shadow: 0 0 0 1px var(--acc), 0 4px 16px rgba(255,85,0,.1);
}
.tdfe-tech-inner:hover {
  border-color: rgba(255,85,0,.4); transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(0,0,0,.08);
}
.tdfe-tech-icon { width: 36px; height: 36px; color: var(--acc); margin-bottom: 10px; }
.tdfe-tech-icon svg { width: 100%; height: 100%; }

.tdfe-tech-badge {
  display: inline-block; font-size: 8px; font-weight: 700; letter-spacing: 2px;
  text-transform: uppercase; background: rgba(255,85,0,.1); color: var(--acc);
  border: 1px solid rgba(255,85,0,.25); padding: 2px 7px; border-radius: 3px; margin-bottom: 8px;
}
.tdfe-badge-pro     { background: rgba(22,163,74,.08); color:var(--ok); border-color:rgba(22,163,74,.25); }
.tdfe-badge-request { background: rgba(217,119,6,.08); color:var(--warn); border-color:rgba(217,119,6,.25); }

.tdfe-tech-inner h3 {
  font-family: 'Bebas Neue', sans-serif; font-size: 20px; letter-spacing: 1px;
  margin: 0 0 6px; color: var(--text);
}
.tdfe-tech-inner p  { font-size: 11px; color: var(--muted); line-height: 1.6; margin: 0 0 10px; }
.tdfe-tech-specs    { display: flex; flex-direction: column; gap: 3px; }
.tdfe-tech-specs span { font-size: 10px; color: var(--muted2); }

/* ── Chips ────────────────────────────────────────────── */
.tdfe-material-grid { display: flex; flex-wrap: wrap; gap: 8px; }
.tdfe-chip {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: 50px;
  padding: 7px 16px; font-size: 12px; font-weight: 500; color: var(--muted);
  cursor: pointer; transition: all var(--tr);
}
.tdfe-chip.selected, .tdfe-chip:hover {
  border-color: var(--acc); color: var(--acc); background: #fff8f5;
}

/* ── Printer cards ────────────────────────────────────── */
.tdfe-printer-grid { display: flex; flex-direction: column; gap: 10px; }
.tdfe-printer-card { cursor: pointer; display: block; }
.tdfe-printer-card input { display: none; }
.tdfe-printer-inner {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: var(--rads);
  padding: 14px 18px; transition: all var(--tr); display: flex; flex-direction: column; gap: 6px;
}
.tdfe-printer-card input:checked ~ .tdfe-printer-inner {
  border-color: var(--acc); background: #fff8f5; box-shadow: 0 0 0 1px var(--acc);
}
.tdfe-printer-inner:hover { border-color: rgba(255,85,0,.4); }
.tdfe-printer-top {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 6px;
}
.tdfe-printer-name  { font-weight: 600; font-size: 13px; color: var(--text); }
.tdfe-printer-badge {
  font-size: 9px; font-weight: 700; letter-spacing: 1.5px;
  text-transform: uppercase; padding: 2px 8px; border-radius: 3px;
}
.tdfe-pri-std { background:rgba(255,85,0,.1); color:var(--acc); border:1px solid rgba(255,85,0,.25); }
.tdfe-pri-big { background:rgba(217,119,6,.08); color:var(--warn); border:1px solid rgba(217,119,6,.25); }
.tdfe-printer-dims { font-size: 11px; color: var(--muted); font-weight: 500; }

/* ── Volume visualizer ────────────────────────────────── */
.tdfe-vol-viz { display: none; margin-top: 8px; padding: 12px 14px; background: var(--surf2); border-radius: var(--rads); border: 1px solid var(--bord); }
.tdfe-printer-card input:checked ~ .tdfe-printer-inner .tdfe-vol-viz { display: block; }
.tdfe-vv-label { font-size: 10px; font-weight: 600; letter-spacing: 1.5px; text-transform: uppercase; color: var(--muted2); margin-bottom: 8px; }
.tdfe-vv-bars  { display: flex; flex-direction: column; gap: 5px; }
.tdfe-vv-axis  { display: flex; align-items: center; gap: 8px; }
.tdfe-vv-axlbl { font-size: 10px; color: var(--muted); width: 12px; text-align: center; font-weight: 600; }
.tdfe-vv-track { flex: 1; height: 14px; background: var(--bord); border-radius: 4px; overflow: hidden; }
.tdfe-vv-fill  {
  height: 100%; background: linear-gradient(90deg, var(--acc), var(--acc2));
  border-radius: 4px; display: flex; align-items: center; justify-content: flex-end;
  padding-right: 6px; font-size: 9px; font-weight: 700; color: #fff;
  white-space: nowrap; transition: width .5s ease; min-width: 60px;
}
.tdfe-vv-note  { font-size: 10px; color: var(--muted); margin-top: 6px; line-height: 1.5; }

/* ══ STEP 2: FILE UPLOAD + DIMENSIONI ════════════════ */
.tdfe-calc-mode-tabs {
  display: flex; gap: 0; margin-bottom: 24px;
  border: 1.5px solid var(--bord); border-radius: var(--rads); overflow: hidden;
}
.tdfe-mode-tab {
  flex: 1; padding: 12px 16px; text-align: center; cursor: pointer;
  background: var(--surf); border: none; font-family: 'Inter', sans-serif;
  font-size: 13px; font-weight: 500; color: var(--muted); transition: all var(--tr);
  display: flex; align-items: center; justify-content: center; gap: 8px;
}
.tdfe-mode-tab + .tdfe-mode-tab { border-left: 1.5px solid var(--bord); }
.tdfe-mode-tab.active { background: var(--acc); color: #fff; }
.tdfe-mode-tab:hover:not(.active) { background: var(--surf2); color: var(--text); }

.tdfe-mode-panel { display: none; }
.tdfe-mode-panel.active { display: block; }

/* Drop zone */
.tdfe-dropzone {
  border: 2px dashed var(--bord2); border-radius: var(--rad);
  background: var(--surf); padding: 40px 24px; text-align: center;
  cursor: pointer; transition: all var(--tr); position: relative;
}
.tdfe-dropzone:hover, .tdfe-dropzone.drag-over {
  border-color: var(--acc); background: #fff8f5;
}
.tdfe-dropzone input[type=file] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer; width: 100%; height: 100%;
}
.tdfe-dz-icon {
  width: 48px; height: 48px; color: var(--acc); margin: 0 auto 14px;
}
.tdfe-dz-icon svg { width: 100%; height: 100%; }
.tdfe-dz-title  { font-family: 'Bebas Neue', sans-serif; font-size: 20px; letter-spacing: 1px; color: var(--text); margin-bottom: 6px; }
.tdfe-dz-sub    { font-size: 12px; color: var(--muted); margin-bottom: 10px; }
.tdfe-dz-formats{ font-size: 10px; color: var(--muted2); }

/* File preview */
.tdfe-file-preview {
  display: none; align-items: center; gap: 14px; background: var(--surf2);
  border: 1.5px solid var(--bord); border-radius: var(--rads); padding: 14px 18px; margin-top: 14px;
}
.tdfe-file-preview.visible { display: flex; }
.tdfe-fp-icon { width: 32px; height: 32px; color: var(--acc); flex-shrink: 0; }
.tdfe-fp-icon svg { width: 100%; height: 100%; }
.tdfe-fp-info { flex: 1; min-width: 0; }
.tdfe-fp-name { font-size: 13px; font-weight: 600; color: var(--text); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.tdfe-fp-size { font-size: 11px; color: var(--muted); }
.tdfe-fp-remove {
  background: none; border: none; cursor: pointer; color: var(--muted);
  font-size: 18px; line-height: 1; padding: 0 4px; transition: color var(--tr);
}
.tdfe-fp-remove:hover { color: #dc2626; }

.tdfe-upload-note {
  background: rgba(37,99,235,.06); border: 1px solid rgba(37,99,235,.2);
  border-radius: var(--rads); padding: 10px 14px; font-size: 12px;
  color: var(--info); margin-top: 12px; line-height: 1.5;
}

/* ── Dims (shared) ────────────────────────────────────── */
.tdfe-dims-visual { display: flex; justify-content: center; margin-bottom: 24px; perspective: 500px; }
.tdfe-box-3d {
  width: 70px; height: 70px; position: relative;
  transform-style: preserve-3d; transform: rotateX(-20deg) rotateY(30deg);
  animation: tdfeRotate 8s linear infinite;
}
@keyframes tdfeRotate {
  from { transform: rotateX(-20deg) rotateY(0deg); }
  to   { transform: rotateX(-20deg) rotateY(360deg); }
}
.tdfe-box-face { position: absolute; width: 70px; height: 70px; border: 1.5px solid var(--acc); background: rgba(255,85,0,.04); }
.tdfe-box-front  { transform: translateZ(35px); }
.tdfe-box-back   { transform: translateZ(-35px) rotateY(180deg); }
.tdfe-box-left   { transform: rotateY(-90deg) translateZ(35px); }
.tdfe-box-right  { transform: rotateY(90deg) translateZ(35px); }
.tdfe-box-top    { transform: rotateX(90deg) translateZ(35px); }
.tdfe-box-bottom { transform: rotateX(-90deg) translateZ(35px); }

.tdfe-dims-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; margin-bottom: 20px; }
@media (max-width: 600px) { .tdfe-dims-grid { grid-template-columns: 1fr; } }

.tdfe-volume-display {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: var(--rad);
  padding: 18px 22px; display: flex; flex-direction: column; gap: 12px;
}
.tdfe-vol-item   { display: flex; justify-content: space-between; align-items: center; }
.tdfe-vol-label  { font-size: 12px; color: var(--muted); }
.tdfe-vol-value  { font-family: 'Bebas Neue', sans-serif; font-size: 17px; color: var(--acc); letter-spacing: 1px; }
.tdfe-infill-row { display: flex; align-items: center; gap: 10px; }

input[type=range] {
  -webkit-appearance: none; width: 130px; height: 3px;
  background: var(--bord2); border-radius: 2px; outline: none;
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 15px; height: 15px; border-radius: 50%;
  background: var(--acc); cursor: pointer; box-shadow: 0 1px 4px rgba(255,85,0,.4);
}
.tdfe-size-warning {
  background: rgba(217,119,6,.08); border: 1px solid rgba(217,119,6,.3);
  color: var(--warn); border-radius: var(--rads); padding: 11px 14px;
  font-size: 12px; margin-top: 14px; display: none;
}

/* ══ STEP 3 ════════════════════════════════════════════ */
.tdfe-details-grid { display: flex; flex-direction: column; gap: 22px; }
.tdfe-qty-ctrl { display: flex; width: fit-content; }
.tdfe-qty-btn {
  background: var(--surf); border: 1.5px solid var(--bord); color: var(--text);
  width: 40px; height: 40px; font-size: 18px; cursor: pointer; transition: all var(--tr); line-height: 1;
}
.tdfe-qty-btn:first-child { border-radius: var(--rads) 0 0 var(--rads); }
.tdfe-qty-btn:last-child  { border-radius: 0 var(--rads) var(--rads) 0; }
.tdfe-qty-btn:hover { background: var(--acc); border-color: var(--acc); color: #fff; }
.tdfe-qty-input   { width: 60px; border-radius: 0; text-align: center; border-left: none; border-right: none; }
.tdfe-qty-discount { font-size: 11px; color: var(--ok); margin-top: 5px; min-height: 16px; font-weight: 500; }

.tdfe-finish-grid, .tdfe-urgency-grid { display: grid; grid-template-columns: repeat(3,1fr); gap: 10px; }
@media (max-width: 600px) { .tdfe-finish-grid, .tdfe-urgency-grid { grid-template-columns: 1fr; } }

.tdfe-radio-card { cursor: pointer; display: block; }
.tdfe-radio-card input { display: none; }
.tdfe-radio-inner {
  display: flex; flex-direction: column; gap: 3px; background: var(--surf);
  border: 1.5px solid var(--bord); border-radius: var(--rads); padding: 14px; transition: all var(--tr);
}
.tdfe-radio-card input:checked ~ .tdfe-radio-inner {
  border-color: var(--acc); background: #fff8f5; box-shadow: 0 0 0 1px var(--acc);
}
.tdfe-radio-inner:hover { border-color: rgba(255,85,0,.4); }
.tdfe-radio-inner strong { font-size: 13px; font-weight: 600; color: var(--text); }
.tdfe-radio-inner small  { font-size: 10px; color: var(--muted); }

/* Tempistiche info box */
.tdfe-timing-info {
  background: var(--surf2); border: 1px solid var(--bord);
  border-radius: var(--rads); padding: 14px 16px; margin-top: 16px;
}
.tdfe-timing-info h4 {
  font-family: 'Bebas Neue', sans-serif; font-size: 14px; letter-spacing: 1.5px;
  color: var(--muted); margin: 0 0 8px; text-transform: uppercase;
}
.tdfe-timing-row {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 12px; padding: 4px 0; border-bottom: 1px solid var(--bord);
}
.tdfe-timing-row:last-child { border-bottom: none; }
.tdfe-timing-row .tl { color: var(--muted); }
.tdfe-timing-row .tv { font-weight: 600; color: var(--text); }
.tdfe-timing-row .tv.urgent { color: var(--warn); }

/* ══ STEP 4: PRICE + CLAUSOLA ══════════════════════════ */
.tdfe-price-card {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: var(--rad);
  overflow: hidden; margin-bottom: 20px; box-shadow: 0 2px 12px rgba(0,0,0,.06);
}
.tdfe-price-breakdown { padding: 18px 22px; display: flex; flex-direction: column; gap: 8px; }
.tdfe-breakdown-row   { display: flex; justify-content: space-between; font-size: 12px; }
.tdfe-breakdown-row .label { color: var(--muted); }
.tdfe-breakdown-row .val   { font-weight: 500; color: var(--text); }
.tdfe-price-total {
  border-top: 1.5px solid var(--bord); padding: 18px 22px;
  display: flex; justify-content: space-between; align-items: center; background: #fff8f5;
}
.tdfe-price-label { font-family: 'Bebas Neue', sans-serif; font-size: 17px; letter-spacing: 2px; color: var(--muted); }
.tdfe-price-value { font-family: 'Bebas Neue', sans-serif; font-size: 40px; color: var(--acc); letter-spacing: 1px; }
.tdfe-price-note  { font-size: 10px; color: var(--muted2); padding: 10px 22px; border-top: 1px solid var(--bord); }

/* Clausola box */
.tdfe-clausola {
  background: rgba(37,99,235,.04); border: 1.5px solid rgba(37,99,235,.2);
  border-radius: var(--rad); padding: 18px 20px; margin-bottom: 24px;
}
.tdfe-clausola-title {
  font-family: 'Bebas Neue', sans-serif; font-size: 14px; letter-spacing: 2px;
  color: var(--info); margin: 0 0 10px; text-transform: uppercase; display: flex; align-items: center; gap: 8px;
}
.tdfe-clausola p {
  font-size: 12px; color: var(--muted); line-height: 1.7; margin: 0 0 8px;
}
.tdfe-clausola p:last-child { margin-bottom: 0; }
.tdfe-clausola strong { color: var(--text); }

/* Checkbox accettazione */
.tdfe-accept-wrap {
  display: flex; align-items: flex-start; gap: 12px;
  background: var(--surf); border: 1.5px solid var(--bord);
  border-radius: var(--rads); padding: 14px 16px; margin-bottom: 24px; cursor: pointer;
  transition: border-color var(--tr);
}
.tdfe-accept-wrap:hover { border-color: var(--acc); }
.tdfe-accept-wrap input[type=checkbox] {
  width: 18px; height: 18px; accent-color: var(--acc);
  cursor: pointer; flex-shrink: 0; margin-top: 1px;
}
.tdfe-accept-label { font-size: 12px; color: var(--muted); line-height: 1.6; }
.tdfe-accept-label strong { color: var(--text); }

/* Contact form */
.tdfe-form-intro { font-size: 13px; color: var(--muted); margin: 0 0 20px; }
.tdfe-form-grid  { display: grid; grid-template-columns: repeat(2,1fr); gap: 14px; }
@media (max-width: 600px) { .tdfe-form-grid { grid-template-columns: 1fr; } }
.tdfe-full-width { grid-column: 1 / -1; }

/* Shared fields */
.tdfe-field-group { display: flex; flex-direction: column; gap: 7px; }
.tdfe-field-group label {
  font-size: 11px; font-weight: 600; text-transform: uppercase;
  letter-spacing: 1.2px; color: var(--muted);
}
.tdfe-unit     { color: var(--acc); font-weight: 400; }
.tdfe-required { color: var(--acc); }
.tdfe-field-hint { font-size: 11px; color: var(--warn); min-height: 16px; }

.tdfe-input {
  background: var(--surf); border: 1.5px solid var(--bord); border-radius: var(--rads);
  color: var(--text); font-family: 'Inter', sans-serif; font-size: 14px;
  padding: 11px 13px; outline: none; transition: all var(--tr); width: 100%; box-sizing: border-box;
}
.tdfe-input:focus { border-color: var(--acc); box-shadow: 0 0 0 3px rgba(255,85,0,.1); }
.tdfe-input::placeholder { color: var(--muted2); opacity: .7; }
.tdfe-textarea { resize: vertical; min-height: 90px; }

/* Buttons */
.tdfe-panel-footer, .tdfe-form-footer {
  display: flex; justify-content: flex-end; gap: 10px; margin-top: 28px;
}
.tdfe-btn {
  font-family: 'Bebas Neue', sans-serif; font-size: 15px; letter-spacing: 2px;
  padding: 13px 30px; border: none; border-radius: var(--rads);
  cursor: pointer; transition: all var(--tr); outline: none;
}
.tdfe-btn-next, .tdfe-btn-submit {
  background: var(--acc); color: #fff;
}
.tdfe-btn-next:hover, .tdfe-btn-submit:hover {
  background: var(--acc2); transform: translateY(-1px);
  box-shadow: 0 4px 18px rgba(255,85,0,.35);
}
.tdfe-btn-back {
  background: var(--surf); color: var(--muted); border: 1.5px solid var(--bord);
}
.tdfe-btn-back:hover { border-color: var(--bord2); color: var(--text); }
.tdfe-btn:disabled   { opacity: .4; cursor: not-allowed; transform: none !important; }

/* Success */
.tdfe-success { text-align: center; padding: 40px 24px; animation: tdfeFadeIn .4s ease; }
.tdfe-success-icon {
  width: 60px; height: 60px; background: rgba(22,163,74,.1);
  border: 2px solid var(--ok); border-radius: 50%; font-size: 26px; color: var(--ok);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 16px; font-weight: 600;
}
.tdfe-success h3 { font-family:'Bebas Neue',sans-serif; font-size:26px; letter-spacing:2px; margin-bottom:10px; color:var(--text); }
.tdfe-success p  { color: var(--muted); font-size: 13px; margin-bottom: 6px; }
.tdfe-success a  { color: var(--acc); }

/* Error */
.tdfe-error {
  background: rgba(220,38,38,.06); border: 1px solid rgba(220,38,38,.25);
  color: #dc2626; border-radius: var(--rads); padding: 10px 14px;
  font-size: 12px; margin-top: 12px;
}

/* Spinner */
.tdfe-spinner {
  display: inline-block; width: 14px; height: 14px;
  border: 2px solid rgba(255,255,255,.4); border-top-color: #fff;
  border-radius: 50%; animation: tdfeSpinner .7s linear infinite;
  vertical-align: middle; margin-right: 6px;
}
@keyframes tdfeSpinner { to { transform: rotate(360deg); } }