/* ─── Reset & Base ──────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --primary:      #2563EB;
  --primary-dk:   #1D4ED8;
  --primary-lt:   #DBEAFE;
  --success:      #10B981;
  --success-lt:   #D1FAE5;
  --warning:      #F59E0B;
  --warning-lt:   #FEF3C7;
  --danger:       #EF4444;
  --danger-lt:    #FEE2E2;
  --gray-50:      #F8FAFC;
  --gray-100:     #F1F5F9;
  --gray-200:     #E2E8F0;
  --gray-300:     #CBD5E1;
  --gray-500:     #64748B;
  --gray-700:     #334155;
  --gray-900:     #0F172A;
  --radius:       16px;
  --radius-sm:    10px;
  --shadow:       0 4px 24px rgba(0,0,0,.08);
  --shadow-lg:    0 8px 40px rgba(0,0,0,.13);
  --transition:   .2s ease;
}

html, body {
  height: 100%;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--gray-100);
  color: var(--gray-900);
  font-size: 18px;
  line-height: 1.5;
  overflow: hidden;
  user-select: none;
}

/* ─── Layout ─────────────────────────────────────────────────────────────────── */
#kiosk {
  display: flex;
  flex-direction: column;
  height: 100vh;
  max-width: 900px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ─── Header ─────────────────────────────────────────────────────────────────── */
.kiosk-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0 16px;
  border-bottom: 2px solid var(--gray-200);
  flex-shrink: 0;
}

.kiosk-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--primary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.kiosk-logo svg { width: 32px; height: 32px; }

.session-info {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.85rem;
  color: var(--gray-500);
}

.session-info .badge {
  background: var(--primary-lt);
  color: var(--primary);
  padding: 4px 12px;
  border-radius: 99px;
  font-weight: 600;
  font-size: 0.8rem;
}

.btn-reset {
  background: none;
  border: 1.5px solid var(--gray-300);
  color: var(--gray-500);
  padding: 6px 14px;
  border-radius: 99px;
  cursor: pointer;
  font-size: 0.8rem;
  transition: all var(--transition);
}

.btn-reset:hover { border-color: var(--danger); color: var(--danger); }

/* ─── Steps progress ─────────────────────────────────────────────────────────── */
.steps-bar {
  display: flex;
  align-items: center;
  padding: 20px 0;
  flex-shrink: 0;
  gap: 0;
}

.step-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  flex: 1;
  position: relative;
}

.step-item:not(:last-child)::after {
  content: '';
  position: absolute;
  top: 18px;
  left: 55%;
  width: 90%;
  height: 2px;
  background: var(--gray-200);
  z-index: 0;
  transition: background var(--transition);
}

.step-item.done:not(:last-child)::after { background: var(--primary); }

.step-dot {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--gray-200);
  color: var(--gray-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.9rem;
  position: relative;
  z-index: 1;
  transition: all var(--transition);
  border: 2.5px solid transparent;
}

.step-item.active .step-dot {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary-dk);
  box-shadow: 0 0 0 4px var(--primary-lt);
}

.step-item.done .step-dot {
  background: var(--success);
  color: #fff;
  border-color: var(--success);
}

.step-label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--gray-500);
  margin-top: 6px;
  text-align: center;
  text-transform: uppercase;
  letter-spacing: .05em;
}

.step-item.active .step-label { color: var(--primary); }
.step-item.done .step-label { color: var(--success); }

/* ─── Main content area ──────────────────────────────────────────────────────── */
.kiosk-content {
  flex: 1;
  overflow-y: auto;
  padding: 8px 0 24px;
  -webkit-overflow-scrolling: touch;
}

.screen { display: none; }
.screen.active { display: block; }

/* ─── Cards ──────────────────────────────────────────────────────────────────── */
.card {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  margin-bottom: 16px;
}

.card-title {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-900);
  margin-bottom: 8px;
}

.card-subtitle {
  font-size: 0.9rem;
  color: var(--gray-500);
  margin-bottom: 28px;
}

/* ─── Buttons ─────────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 16px 32px;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: all var(--transition);
  min-height: 56px;
  text-decoration: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}
.btn-primary:hover, .btn-primary:focus { background: var(--primary-dk); transform: translateY(-1px); box-shadow: var(--shadow); }
.btn-primary:active { transform: translateY(0); }

.btn-outline {
  background: #fff;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary-lt); }

.btn-ghost {
  background: var(--gray-100);
  color: var(--gray-700);
}
.btn-ghost:hover { background: var(--gray-200); }

.btn-success { background: var(--success); color: #fff; }
.btn-success:hover { background: #059669; }

.btn-danger { background: var(--danger); color: #fff; }

.btn-lg { padding: 20px 40px; font-size: 1.15rem; min-height: 66px; border-radius: var(--radius); }
.btn-full { width: 100%; }
.btn:disabled { opacity: .5; cursor: not-allowed; transform: none !important; }

/* ─── Screen 1 — Welcome / Auth ─────────────────────────────────────────────── */
.welcome-hero {
  text-align: center;
  padding: 20px 0 32px;
}

.welcome-hero h1 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--gray-900);
  margin-bottom: 10px;
}

.welcome-hero p { color: var(--gray-500); font-size: 1rem; }

.auth-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.auth-option-card {
  background: #fff;
  border: 2.5px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 28px 20px;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
}

.auth-option-card:hover, .auth-option-card.selected {
  border-color: var(--primary);
  background: var(--primary-lt);
  box-shadow: var(--shadow);
}

.auth-option-card .icon {
  width: 64px; height: 64px;
  background: var(--primary-lt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-option-card:hover .icon, .auth-option-card.selected .icon {
  background: var(--primary);
}

.auth-option-card .icon svg {
  width: 32px; height: 32px;
  color: var(--primary);
}

.auth-option-card:hover .icon svg,
.auth-option-card.selected .icon svg { color: #fff; }

.auth-option-card h3 { font-size: 1.05rem; font-weight: 700; }
.auth-option-card p { font-size: 0.8rem; color: var(--gray-500); }

/* ─── Forms ──────────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 20px; }

.form-label {
  display: block;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--gray-700);
  margin-bottom: 8px;
}

.form-input {
  width: 100%;
  padding: 16px 18px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  font-size: 1.1rem;
  background: var(--gray-50);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-lt);
  background: #fff;
}

.form-input.error { border-color: var(--danger); }

/* ─── Screen 2 — Upload ─────────────────────────────────────────────────────── */
.drop-zone {
  border: 3px dashed var(--gray-300);
  border-radius: var(--radius);
  padding: 52px 32px;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition);
  background: var(--gray-50);
  position: relative;
}

.drop-zone.drag-over {
  border-color: var(--primary);
  background: var(--primary-lt);
}

.drop-zone.has-file {
  border-color: var(--success);
  background: var(--success-lt);
}

.drop-zone input[type=file] {
  position: absolute;
  inset: 0;
  opacity: 0;
  cursor: pointer;
  width: 100%;
  height: 100%;
}

.drop-zone .dz-icon {
  font-size: 3.5rem;
  margin-bottom: 16px;
}

.drop-zone h3 { font-size: 1.15rem; font-weight: 700; margin-bottom: 8px; }
.drop-zone p { font-size: 0.85rem; color: var(--gray-500); }

.file-preview {
  display: none;
  background: var(--gray-50);
  border: 2px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 20px 24px;
  gap: 16px;
  align-items: center;
}

.file-preview.show { display: flex; }

.file-preview-thumb {
  width: 64px;
  height: 80px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  background: var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  flex-shrink: 0;
  overflow: hidden;
}

.file-preview-thumb img { width: 100%; height: 100%; object-fit: cover; }

.file-preview-info { flex: 1; }
.file-preview-info .fname { font-weight: 700; word-break: break-all; }
.file-preview-info .fmeta { font-size: 0.82rem; color: var(--gray-500); margin-top: 4px; }

.btn-remove-file {
  background: none;
  border: none;
  color: var(--gray-400);
  cursor: pointer;
  font-size: 1.2rem;
  padding: 8px;
  border-radius: var(--radius-sm);
  transition: color var(--transition);
}
.btn-remove-file:hover { color: var(--danger); }

/* ─── Screen 3 — Options ─────────────────────────────────────────────────────── */
.options-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.option-group { display: flex; flex-direction: column; gap: 10px; }

.option-label {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--gray-700);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.toggle-row {
  display: flex;
  gap: 8px;
}

.toggle-btn {
  flex: 1;
  padding: 14px 8px;
  border: 2px solid var(--gray-200);
  border-radius: var(--radius-sm);
  background: #fff;
  cursor: pointer;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--gray-700);
  transition: all var(--transition);
  text-align: center;
}

.toggle-btn.active {
  border-color: var(--primary);
  background: var(--primary);
  color: #fff;
}

.copies-control {
  display: flex;
  align-items: center;
  gap: 12px;
}

.copies-btn {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  border: 2px solid var(--gray-200);
  background: #fff;
  font-size: 1.4rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
  font-weight: 700;
}

.copies-btn:hover { border-color: var(--primary); color: var(--primary); }

.copies-value {
  font-size: 1.6rem;
  font-weight: 800;
  min-width: 48px;
  text-align: center;
}

/* Printer cards */
.printer-list { display: flex; flex-direction: column; gap: 12px; margin-top: 8px; }

.printer-card {
  background: #fff;
  border: 2.5px solid var(--gray-200);
  border-radius: var(--radius);
  padding: 18px 22px;
  cursor: pointer;
  transition: all var(--transition);
  display: flex;
  align-items: center;
  gap: 16px;
}

.printer-card:hover, .printer-card.selected {
  border-color: var(--primary);
  background: var(--primary-lt);
}

.printer-status-dot {
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--gray-300);
  flex-shrink: 0;
}

.printer-status-dot.online { background: var(--success); box-shadow: 0 0 0 3px var(--success-lt); }
.printer-status-dot.offline { background: var(--danger); }

.printer-card-info { flex: 1; }
.printer-card-info .pname { font-weight: 700; font-size: 1rem; }
.printer-card-info .pmeta { font-size: 0.8rem; color: var(--gray-500); margin-top: 2px; }

.printer-card-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
}

.tag {
  padding: 3px 10px;
  border-radius: 99px;
  font-size: 0.72rem;
  font-weight: 600;
  background: var(--gray-100);
  color: var(--gray-700);
}

.tag.color { background: #FEF3C7; color: #92400E; }
.tag.duplex { background: #E0E7FF; color: #3730A3; }

/* Cost estimate */
.cost-estimate {
  background: linear-gradient(135deg, var(--primary-lt), #EDE9FE);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 16px;
}

.cost-estimate .label { font-size: 0.9rem; color: var(--gray-700); font-weight: 600; }
.cost-estimate .amount { font-size: 1.8rem; font-weight: 800; color: var(--primary); }

/* ─── Screen 4 — Confirmation ────────────────────────────────────────────────── */
.confirm-summary {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin: 24px 0;
}

.confirm-item {
  background: var(--gray-50);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
}

.confirm-item .ci-label { font-size: 0.78rem; font-weight: 700; color: var(--gray-500); text-transform: uppercase; letter-spacing: .05em; }
.confirm-item .ci-value { font-size: 1rem; font-weight: 700; color: var(--gray-900); margin-top: 4px; }

/* ─── Screen 5 — Done ────────────────────────────────────────────────────────── */
.done-screen {
  text-align: center;
  padding: 40px 20px;
}

.done-icon {
  width: 100px;
  height: 100px;
  background: var(--success-lt);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 24px;
  font-size: 3rem;
}

.done-screen h2 {
  font-size: 1.8rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.done-screen p { color: var(--gray-500); margin-bottom: 8px; }

.job-ref-badge {
  background: var(--primary);
  color: #fff;
  font-size: 1.4rem;
  font-weight: 800;
  letter-spacing: .15em;
  padding: 12px 28px;
  border-radius: var(--radius);
  display: inline-block;
  margin: 16px 0;
}

/* ─── Footer nav ──────────────────────────────────────────────────────────────── */
.kiosk-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0 20px;
  border-top: 2px solid var(--gray-200);
  flex-shrink: 0;
  gap: 12px;
}

.kiosk-footer .btn { min-width: 140px; }

/* ─── Spinner / loading ──────────────────────────────────────────────────────── */
.spinner {
  width: 28px;
  height: 28px;
  border: 3px solid rgba(255,255,255,.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin .7s linear infinite;
  display: none;
}

.loading .spinner { display: block; }
.loading .btn-text { display: none; }

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── Alerts ─────────────────────────────────────────────────────────────────── */
.alert {
  padding: 14px 18px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  margin-bottom: 16px;
  display: none;
}

.alert.show { display: block; }
.alert-error { background: var(--danger-lt); color: #991B1B; border-left: 4px solid var(--danger); }
.alert-success { background: var(--success-lt); color: #065F46; border-left: 4px solid var(--success); }
.alert-info { background: var(--primary-lt); color: #1E40AF; border-left: 4px solid var(--primary); }

/* ─── Idle overlay ────────────────────────────────────────────────────────────── */
.idle-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(15,23,42,.85);
  backdrop-filter: blur(8px);
  z-index: 100;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 24px;
  text-align: center;
  color: #fff;
}

.idle-overlay.show { display: flex; }
.idle-overlay h2 { font-size: 2rem; font-weight: 800; }
.idle-overlay p { font-size: 1rem; opacity: .8; }
.idle-countdown {
  font-size: 4rem;
  font-weight: 800;
  color: var(--warning);
}

/* ─── Upload progress ─────────────────────────────────────────────────────────── */
.upload-progress {
  display: none;
  background: var(--gray-200);
  border-radius: 99px;
  height: 8px;
  margin-top: 16px;
  overflow: hidden;
}

.upload-progress.show { display: block; }
.upload-progress-bar {
  height: 100%;
  background: var(--primary);
  border-radius: 99px;
  transition: width .3s ease;
  width: 0;
}

/* ─── Scrollbar ──────────────────────────────────────────────────────────────── */
.kiosk-content::-webkit-scrollbar { width: 4px; }
.kiosk-content::-webkit-scrollbar-track { background: transparent; }
.kiosk-content::-webkit-scrollbar-thumb { background: var(--gray-300); border-radius: 4px; }