/* =====================================================
   AGGREKO AR EXPERIENCE – VIEWER STYLESHEET (LIGHT)
   ===================================================== */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* Aggreko brand tokens — matches aggreko.com + 2026 brand guidelines */
:root {
  --orange:        #FD6E39;
  --orange-light:  #FF8B5E;
  --orange-dark:   #E4571F;
  --orange-glow:   rgba(253, 110, 57, 0.2);
  --orange-soft:   rgba(253, 110, 57, 0.09);
  --orange-border: rgba(253, 110, 57, 0.3);

  --black:         #101010;
  --cream:         #FBFAF5;

  --bg:            var(--cream);
  --glass-bg:      rgba(251, 250, 245, 0.9);
  --glass-border:  rgba(16, 16, 16, 0.1);
  --glass-shadow:  0 4px 24px rgba(16, 16, 16, 0.08);

  --text-primary:  var(--black);
  --text-muted:    #6c6c6c;

  --radius:        20px;
  --radius-pill:   27px;
  --transition:    0.3s cubic-bezier(0.16, 1, 0.3, 1);
  --font:          'Inter Tight', 'Inter', system-ui, -apple-system, sans-serif;
}

html, body {
  height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text-primary);
  overflow: hidden;
}

/* ---- Viewer Layout ---- */
.viewer-wrap {
  display: flex;
  flex-direction: column;
  height: 100dvh;
  position: relative;
}

/* ---- Top Bar ---- */
.viewer-topbar {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 14px 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  background: linear-gradient(to bottom, rgba(251,250,245,0.95) 0%, transparent 100%);
  pointer-events: none;
}

.viewer-topbar > * { pointer-events: all; }

/* Secondary outline pill, like aggreko.com "View product information" */
.back-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--glass-bg);
  border: 2px solid var(--black);
  color: var(--text-primary);
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font);
  font-size: 0.82rem;
  font-weight: 600;
  text-decoration: none;
  transition: var(--transition);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  flex-shrink: 0;
}

.back-btn:hover {
  background: var(--black);
  border-color: var(--black);
  color: var(--cream);
}

.viewer-product-name {
  flex: 1;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.viewer-logo {
  height: 28px;
  object-fit: contain;
  flex-shrink: 0;
}

/* ---- Model Viewer ---- */
model-viewer {
  width: 100%;
  flex: 1;
  background: var(--bg);
  --poster-color: transparent;
}

/* ---- Loading Screen ---- */
.loading-screen {
  position: absolute;
  inset: 0;
  z-index: 200;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  background: var(--bg);
  transition: opacity 0.5s ease;
}

.loading-screen.hidden {
  opacity: 0;
  pointer-events: none;
}

.loading-logo {
  height: 40px;
  object-fit: contain;
}

.loader-ring {
  width: 48px;
  height: 48px;
  border: 3px solid rgba(16,16,16,0.08);
  border-top-color: var(--orange);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}

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

.loading-text {
  font-size: 0.85rem;
  color: var(--text-muted);
  font-weight: 500;
}

/* ---- Bottom Panel ---- */
.viewer-bottom {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 0 16px 20px;
  background: linear-gradient(to top, rgba(251,250,245,0.98) 0%, rgba(251,250,245,0.6) 70%, transparent 100%);
  pointer-events: none;
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .viewer-bottom { padding-bottom: calc(20px + env(safe-area-inset-bottom)); }
}

.viewer-bottom > * { pointer-events: all; }

.bottom-content {
  max-width: 480px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

/* Product Info Strip */
.product-info-strip {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  padding: 13px 15px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  box-shadow: var(--glass-shadow);
  display: flex;
  gap: 12px;
  align-items: center;
}

.product-info-strip .thumb {
  width: 52px;
  height: 52px;
  border-radius: 10px;
  object-fit: contain;
  flex-shrink: 0;
  background: #f2ede9;
  padding: 3px;
}

.product-text-wrap { flex: 1; min-width: 0; }

.product-subtitle-strip {
  font-size: 0.67rem;
  font-weight: 600;
  color: var(--orange-dark);
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 2px;
}

.product-title-strip {
  font-size: 0.88rem;
  font-weight: 700;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  color: var(--text-primary);
}

.product-desc-strip {
  font-size: 0.74rem;
  color: var(--text-muted);
  line-height: 1.45;
  margin-top: 3px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* AR Launch Button */
/* Primary CTA — black pill with white text and arrow, per aggreko.com */
.ar-launch-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--black);
  color: #ffffff;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid var(--black);
  border-radius: var(--radius-pill);
  padding: 15px 24px;
  cursor: pointer;
  transition: var(--transition);
  box-shadow: 0 4px 20px rgba(16,16,16,0.18);
  width: 100%;
}

.ar-launch-btn:hover,
.ar-launch-btn:active {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--black);
  box-shadow: none;
}

.btn-arrow {
  flex-shrink: 0;
  transition: transform 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

.ar-launch-btn:hover .btn-arrow {
  transform: translateX(4px);
}

/* AR Not Available */
.ar-not-available {
  background: #fdf0e9;
  border: 1px solid rgba(253,110,57,0.25);
  border-radius: 12px;
  padding: 13px 16px;
  text-align: center;
  font-size: 0.79rem;
  color: var(--text-muted);
  line-height: 1.55;
  display: none;
}

.ar-not-available strong { color: var(--orange-dark); }
.ar-not-available.show { display: block; }

/* ---- Custom AR Button (hidden – we use bottom button) ---- */
.custom-ar-activator { display: none; }

/* =====================================================
   AR SCALE CHOICE SHEET
   ===================================================== */

.scale-sheet-overlay {
  position: fixed;
  inset: 0;
  z-index: 300;
  background: rgba(16, 16, 16, 0.4);
  backdrop-filter: blur(5px);
  -webkit-backdrop-filter: blur(5px);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

@media (min-width: 600px) {
  .scale-sheet-overlay { align-items: center; padding: 24px; }
}

.scale-sheet-overlay.active {
  opacity: 1;
  pointer-events: all;
}

.scale-sheet {
  background: var(--cream);
  border-radius: var(--radius) var(--radius) 0 0;
  width: 100%;
  max-width: 520px;
  padding: 26px 22px;
  position: relative;
  transform: translateY(40px);
  transition: transform 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@media (min-width: 600px) {
  .scale-sheet { border-radius: var(--radius); }
}

@supports (padding-bottom: env(safe-area-inset-bottom)) {
  .scale-sheet { padding-bottom: calc(26px + env(safe-area-inset-bottom)); }
}

.scale-sheet-overlay.active .scale-sheet {
  transform: translateY(0);
}

.sheet-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: transparent;
  border: 1px solid rgba(16,16,16,0.12);
  color: var(--text-muted);
  border-radius: 50%;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: var(--transition);
}

.sheet-close:hover {
  background: var(--black);
  border-color: var(--black);
  color: var(--cream);
}

.sheet-title {
  font-size: 1.4rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.sheet-sub {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 18px;
}

.scale-options {
  display: grid;
  grid-template-columns: 1fr;
  gap: 12px;
}

@media (min-width: 480px) {
  .scale-options { grid-template-columns: 1fr 1fr; }
}

.scale-option {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 7px;
  text-align: left;
  background: #ffffff;
  border: 2px solid rgba(16,16,16,0.1);
  border-radius: var(--radius);
  padding: 16px;
  font-family: var(--font);
  cursor: pointer;
  transition: var(--transition);
}

.scale-option:hover:not(:disabled) {
  border-color: var(--orange);
  background: #fff7f2;
}

.scale-option:disabled {
  opacity: 0.55;
  cursor: wait;
}

.scale-option-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  color: var(--orange-dark);
}

.scale-tag {
  background: var(--orange);
  color: var(--black);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 2px 9px;
  border-radius: var(--radius-pill);
}

.scale-option-title {
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
}

.scale-option-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.sheet-preparing[hidden] { display: none; }

.sheet-preparing {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  margin-top: 16px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
}

.sheet-spinner {
  width: 18px;
  height: 18px;
  border: 2.5px solid rgba(16,16,16,0.1);
  border-top-color: var(--orange);
  border-radius: 50%;
  animation: spin 0.85s linear infinite;
}

.sheet-launch-btn {
  width: 100%;
  margin-top: 16px;
  background: var(--black);
  color: #ffffff;
  font-family: var(--font);
  font-size: 1rem;
  font-weight: 600;
  border: 2px solid var(--black);
  border-radius: var(--radius-pill);
  padding: 14px 24px;
  cursor: pointer;
  transition: var(--transition);
}

.sheet-launch-btn:hover {
  background: var(--orange);
  border-color: var(--orange);
  color: var(--black);
}

/* ---- Android Scanning Prompt ---- */
.ar-scanning-prompt {
  position: absolute;
  bottom: 140px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 60;
  background: rgba(251,250,245,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(16,16,16,0.12);
  border-radius: 40px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  gap: 10px;
  white-space: nowrap;
  pointer-events: none;
  opacity: 0;
  box-shadow: 0 4px 20px rgba(0,0,0,0.12);
  transition: opacity 0.4s ease;
}

.ar-scanning-prompt.show { opacity: 1; }

.scan-icon { animation: scanSway 1.6s ease-in-out infinite; }

@keyframes scanSway {
  0%,100% { transform: rotate(-20deg); }
  50%      { transform: rotate(20deg); }
}

.ar-scanning-prompt span {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-primary);
}

/* ---- Progress Bar ---- */
model-viewer::part(default-progress-bar) {
  background: var(--orange);
  height: 3px;
}

model-viewer::part(default-ar-button) { display: none; }

/* ---- No Model Placeholder ---- */
.no-model-msg {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 14px;
  text-align: center;
  padding: 24px;
  color: var(--text-muted);
  pointer-events: none;
}

.no-model-msg svg { opacity: 0.22; color: var(--orange); }

.no-model-msg h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
}

.no-model-msg p {
  font-size: 0.82rem;
  max-width: 300px;
  line-height: 1.6;
}

.no-model-msg code {
  background: #f2ede9;
  padding: 1px 6px;
  border-radius: 5px;
  font-size: 0.78rem;
  color: var(--orange-dark);
}