:root {
  /* ---- Brand palette ---- */
  --sage:        #8fac7f;   /* primary */
  --sage-dark:   #6b8f5c;
  --sage-light:  #b8cfac;
  --sage-pale:   #deebd6;
  --sage-wash:   #f2f7ee;

  --cream:       #f9f6f0;   /* page background */
  --cream-dark:  #ede8df;
  --card-bg:     #ffffff;

  --charcoal:    #2a2a2a;   /* primary text */
  --mid:         #5c5c5c;   /* secondary text */
  --muted:       #9a9a9a;   /* placeholder / meta */
  --border:      #e2ddd6;

  --terra:       #c4724e;   /* accent / terracotta */
  --terra-light: #f5e1d7;
  --terra-pale:  #fdf4ef;

  --gold:        #c9a84c;   /* rewards */
  --gold-light:  #f0e0a8;
  --gold-pale:   #fdf8ec;

  --green-ok:    #4a7c59;
  --green-bg:    #eaf3ec;
  --red-err:     #b94040;
  --red-bg:      #fdf0f0;

  --radius-sm:   10px;
  --radius-md:   14px;
  --radius-lg:   20px;
  --radius-xl:   26px;
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--cream);
  color: var(--charcoal);
  min-height: 100vh;
  min-height: 100dvh;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

.screen {
  display: none;
  min-height: 100vh;
  min-height: 100dvh;
}

.screen.active {
  display: flex;
  flex-direction: column;
}

/* ============================================
   AUTH SCREEN
   ============================================ */
.auth-container {
  flex: 1;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  padding: 2.5rem 1.5rem;
  background: linear-gradient(155deg, #e8f0e2 0%, var(--cream) 55%, #fdf4ef 100%);
  position: relative;
  overflow: hidden;
}

/* Subtle watermark rings */
.auth-container::before,
.auth-container::after {
  content: '';
  position: absolute;
  border-radius: 50%;
  pointer-events: none;
}
.auth-container::before {
  width: 420px;
  height: 420px;
  border: 60px solid rgba(143, 172, 127, 0.1);
  top: -120px;
  right: -120px;
}
.auth-container::after {
  width: 300px;
  height: 300px;
  border: 40px solid rgba(196, 114, 78, 0.07);
  bottom: -80px;
  left: -80px;
}

.logo {
  text-align: center;
  margin-bottom: 2.5rem;
  position: relative;
  z-index: 1;
}

.logo-image {
  width: 130px;
  height: 130px;
  margin: 0 auto 1.25rem;
  border-radius: var(--radius-lg);
  background: white;
  padding: 0.625rem;
  box-shadow:
    0 2px 8px rgba(42, 42, 42, 0.08),
    0 12px 28px rgba(143, 172, 127, 0.2);
}

.logo-image img {
  width: 100%;
  height: 100%;
  object-fit: contain;
}


.tagline {
  font-size: 0.95rem;
  color: var(--mid);
  margin-top: 0.375rem;
  font-weight: 400;
  letter-spacing: 0.02em;
}

#auth-form {
  width: 100%;
  max-width: 340px;
  position: relative;
  z-index: 1;
}

#auth-form input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  background: white;
  color: var(--charcoal);
  font-size: 1rem;
  margin-bottom: 0.625rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-shadow: 0 1px 3px rgba(42, 42, 42, 0.05);
}

#auth-form input::placeholder {
  color: var(--muted);
}

#auth-form input:focus {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(143, 172, 127, 0.18);
}

#auth-submit {
  width: 100%;
  padding: 0.9rem 1.25rem;
  background: var(--sage);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.2s, transform 0.15s, box-shadow 0.2s;
  margin-top: 0.25rem;
  box-shadow: 0 4px 14px rgba(143, 172, 127, 0.35);
}

#auth-submit:hover {
  background: var(--sage-dark);
  transform: translateY(-1px);
  box-shadow: 0 6px 18px rgba(143, 172, 127, 0.4);
}

#auth-submit:active {
  transform: translateY(0);
}

#auth-submit:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  transform: none;
}

.auth-message {
  font-size: 1.2rem;
  font-weight: 600;
  text-align: center;
  margin-bottom: 0.75rem;
  color: var(--charcoal);
}

.auth-submessage {
  font-size: 0.9rem;
  color: var(--mid);
  text-align: center;
  line-height: 1.55;
}

.error-message {
  color: var(--red-err);
  font-size: 0.875rem;
  text-align: center;
  margin-top: 0.75rem;
  padding: 0.625rem 0.75rem;
  background: var(--red-bg);
  border-radius: var(--radius-sm);
  border: 1px solid rgba(185, 64, 64, 0.15);
}

/* Dev panel — only shown in non-prod environments */
.dev-panel {
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px dashed var(--border);
  text-align: center;
}

.dev-label {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--muted);
  margin-bottom: 0.75rem;
}

.dev-btn {
  display: block;
  width: 100%;
  padding: 0.625rem;
  margin-bottom: 0.5rem;
  border: 1px dashed var(--border);
  border-radius: var(--radius-sm);
  background: var(--cream);
  color: var(--mid);
  font-size: 0.8rem;
  cursor: pointer;
}

.dev-btn:hover {
  background: var(--sage-wash);
  border-color: var(--sage-light);
  color: var(--sage-dark);
}

.auth-toggle {
  text-align: center;
  font-size: 0.875rem;
  margin-top: 1.125rem;
  color: var(--mid);
}

.auth-toggle a {
  color: var(--terra);
  text-decoration: none;
  font-weight: 600;
  transition: opacity 0.2s;
}

.auth-toggle a:hover {
  opacity: 0.75;
  text-decoration: underline;
}

/* ============================================
   APP HEADER
   ============================================ */
.app-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.25rem;
  background: white;
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.header-logo {
  height: 28px;
  width: auto;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.badge {
  font-family: 'Inter', sans-serif;
  font-size: 0.6rem;
  font-weight: 700;
  background: var(--sage);
  color: white;
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.icon-btn {
  background: var(--cream);
  border: 1px solid var(--border);
  color: var(--mid);
  cursor: pointer;
  padding: 0.5rem;
  border-radius: var(--radius-sm);
  transition: all 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
}

.icon-btn:hover {
  background: var(--sage-wash);
  border-color: var(--sage-light);
  color: var(--sage-dark);
}

.icon-btn:active {
  transform: scale(0.95);
}

/* ============================================
   CUSTOMER — STAMP CARD
   ============================================ */
.card-section {
  padding: 1.5rem 1.25rem 1rem;
}

.greeting h3 {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  color: var(--charcoal);
}

.stamp-card {
  background: white;
  border-radius: var(--radius-xl);
  padding: 1.5rem;
  box-shadow:
    0 1px 3px rgba(42, 42, 42, 0.06),
    0 8px 24px rgba(42, 42, 42, 0.06);
  border: 1px solid var(--border);
}

.stamp-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--mid);
  margin-bottom: 1.25rem;
}

.stamp-card-header span:last-child {
  color: var(--charcoal);
  font-size: 0.9rem;
}

.stamps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.75rem;
  margin-bottom: 1.25rem;
}

.stamp-slot {
  aspect-ratio: 1;
  border-radius: 50%;
  border: 2px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  background: var(--cream);
}

.stamp-slot.filled {
  border: 2px solid var(--sage);
  background: var(--sage-wash);
  animation: stampPop 0.3s ease-out;
}

@keyframes stampPop {
  0%   { transform: scale(0.8); }
  55%  { transform: scale(1.12); }
  100% { transform: scale(1); }
}

.stamp-slot.filled .stamp-icon {
  color: var(--sage-dark);
}

/* 10th slot — gold */
.stamp-slot:last-child {
  border-color: var(--gold);
  background: var(--gold-pale);
}

.stamp-slot:last-child.filled {
  background: var(--gold-pale);
  border-color: var(--gold);
  border-style: solid;
}

.stamp-slot:last-child:not(.filled) .star-icon {
  color: var(--gold);
  opacity: 0.45;
}

.stamp-card-footer {
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
  line-height: 1.55;
  padding-top: 0.75rem;
  border-top: 1px solid var(--cream-dark);
}

/* ============================================
   REWARD BANNER
   ============================================ */
.reward-banner {
  display: flex;
  align-items: center;
  gap: 1rem;
  background: var(--gold-pale);
  border: 1.5px solid var(--gold-light);
  border-radius: var(--radius-lg);
  padding: 1.125rem 1.25rem;
  margin-top: 1.25rem;
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(8px); }
  to   { opacity: 1; transform: translateY(0); }
}

.reward-icon {
  flex-shrink: 0;
  display: flex;
}

.reward-banner strong {
  color: var(--charcoal);
  font-size: 1rem;
  display: block;
}

.reward-banner p {
  font-size: 0.85rem;
  color: var(--mid);
  margin-top: 0.2rem;
}

/* ============================================
   CUSTOMER QR CODE
   ============================================ */
.qr-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 1.25rem;
}

.qr-label {
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 0.07em;
  margin-bottom: 0.75rem;
}

.qr-section canvas {
  border-radius: var(--radius-sm);
  box-shadow: 0 1px 4px rgba(0,0,0,0.08);
}

/* ============================================
   STAFF QR SCANNER
   ============================================ */
.scanner-container {
  padding: 1rem 1.25rem;
}

#scanner-reader {
  border-radius: var(--radius-md);
  overflow: hidden;
}

#scanner-reader video {
  border-radius: var(--radius-md);
}

.scanner-cancel {
  display: block;
  width: 100%;
  margin-top: 0.75rem;
  padding: 0.625rem;
  background: var(--red-bg);
  color: var(--red-err);
  border: 1px solid var(--red-err);
  border-radius: var(--radius-sm);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
}

/* ============================================
   ACTIVITY HISTORY
   ============================================ */
.history-section {
  padding: 0.5rem 1.25rem 1.25rem;
  flex: 1;
}

.history-section h4 {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--muted);
  margin-bottom: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.activity-list {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.activity-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: white;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  border: 1px solid var(--border);
}

.activity-item .label {
  color: var(--charcoal);
  font-weight: 500;
}

.activity-item .date {
  color: var(--muted);
  font-size: 0.78rem;
  flex-shrink: 0;
  margin-left: 0.5rem;
}

.activity-item .bonus {
  color: var(--green-ok);
  font-size: 0.75rem;
  font-weight: 500;
  margin-top: 0.125rem;
  display: flex;
  align-items: center;
  gap: 0.2rem;
}

.empty-state {
  text-align: center;
  color: var(--muted);
  font-size: 0.9rem;
  padding: 2.5rem 1rem;
  background: white;
  border-radius: var(--radius-md);
  border: 1.5px dashed var(--border);
}

/* ============================================
   QR MODAL
   ============================================ */
.modal {
  position: fixed;
  inset: 0;
  background: rgba(42, 42, 42, 0.5);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(5px);
  animation: fadeIn 0.2s ease;
}

.modal-content {
  background: white;
  border-radius: var(--radius-xl);
  padding: 2rem 1.75rem;
  text-align: center;
  width: 90%;
  max-width: 320px;
  position: relative;
  box-shadow: 0 20px 48px rgba(42, 42, 42, 0.18);
  animation: modalSlide 0.25s ease;
}

@keyframes modalSlide {
  from { opacity: 0; transform: translateY(16px) scale(0.96); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-content h3 {
  font-size: 1.375rem;
  margin-bottom: 0.25rem;
  color: var(--charcoal);
}

.modal-content > p {
  font-size: 0.875rem;
  color: var(--mid);
  margin-bottom: 1.25rem;
}

.modal-close {
  position: absolute;
  top: 0.75rem;
  right: 1rem;
  background: none;
  border: none;
  font-size: 1.75rem;
  color: var(--muted);
  cursor: pointer;
  line-height: 1;
  transition: color 0.2s;
}

.modal-close:hover {
  color: var(--charcoal);
}

#qr-canvas {
  width: 180px !important;
  height: 180px !important;
  margin: 0 auto;
  border-radius: var(--radius-sm);
}

.qr-name {
  font-weight: 600;
  color: var(--charcoal) !important;
  font-size: 1rem !important;
  margin-top: 1rem !important;
  margin-bottom: 0 !important;
}

/* ============================================
   STAFF SCREEN
   ============================================ */
#staff-list-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

#staff-detail-view {
  flex: 1;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.staff-search {
  padding: 1rem 1.25rem;
  background: white;
  border-bottom: 1px solid var(--border);
}

.staff-search input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  font-size: 1rem;
  background: var(--cream);
  color: var(--charcoal);
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.staff-search input::placeholder {
  color: var(--muted);
}

.staff-search input:focus {
  border-color: var(--sage);
  box-shadow: 0 0 0 3px rgba(143, 172, 127, 0.18);
  background: white;
}

/* Customer List */
.customer-list {
  flex: 1;
  overflow-y: auto;
  padding: 0.75rem 1.25rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.customer-list-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 1.125rem;
  background: white;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: all 0.15s ease;
  border: 1px solid var(--border);
}

.customer-list-item:hover {
  background: var(--sage-wash);
  border-color: var(--sage-light);
}

.customer-list-item:active {
  transform: scale(0.99);
}

.customer-list-item .customer-info {
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}

.customer-list-item .name {
  font-weight: 500;
  color: var(--charcoal);
  font-size: 0.95rem;
}

.customer-list-item .stamps {
  font-size: 0.8rem;
  color: var(--muted);
}

.customer-list-item .customer-badges {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.reward-indicator {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  background: var(--gold-pale);
  color: var(--gold);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.25rem 0.5rem;
  border-radius: 6px;
  border: 1px solid var(--gold-light);
}

.reward-indicator svg {
  width: 12px;
  height: 12px;
}

/* Detail View Header */
.detail-header {
  padding: 0.75rem 1.25rem;
  background: white;
  border-bottom: 1px solid var(--border);
}

.back-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: none;
  border: none;
  color: var(--sage-dark);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  padding: 0.5rem 0;
  transition: opacity 0.2s;
}

.back-btn:hover {
  opacity: 0.7;
}

.back-btn svg {
  stroke: var(--sage-dark);
}

/* Customer Detail Card */
.customer-detail-card {
  flex: 1;
  overflow-y: auto;
  padding: 1.25rem;
}

.detail-info {
  text-align: center;
  padding-bottom: 1.25rem;
  margin-bottom: 1.25rem;
  border-bottom: 1px solid var(--border);
}

.detail-info h3 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--charcoal);
  margin-bottom: 0.25rem;
}

.detail-email {
  font-size: 0.875rem;
  color: var(--muted);
  margin-bottom: 0.5rem;
}

.detail-redeemed-count {
  font-size: 0.75rem;
  color: var(--muted);
  margin: 0 0 0.75rem 0;
  font-style: italic;
}

.rewards-summary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  background: var(--gold-pale);
  color: var(--gold);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.5rem 0.875rem;
  border-radius: 20px;
  border: 1.5px solid var(--gold-light);
}

.rewards-summary.no-rewards {
  background: var(--cream);
  color: var(--muted);
  border-color: var(--border);
}

.rewards-summary svg {
  width: 16px;
  height: 16px;
}

/* Cards Stack */
.detail-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

/* Individual Card */
.staff-stamp-card {
  background: white;
  border-radius: var(--radius-lg);
  padding: 1rem;
  border: 1.5px solid var(--border);
  position: relative;
}

.staff-stamp-card.active {
  border-color: var(--sage-light);
}

.staff-stamp-card.unredeemed {
  border-color: var(--gold);
  background: linear-gradient(135deg, white 0%, var(--gold-pale) 100%);
  box-shadow: 0 0 0 3px rgba(201, 168, 76, 0.15), 0 4px 12px rgba(201, 168, 76, 0.2);
}

.staff-stamp-card.redeemed {
  opacity: 0.6;
  background: var(--cream);
}

.card-label {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 0.3rem 0.625rem;
  border-radius: 6px;
  margin-bottom: 0.75rem;
}

.card-label.current {
  background: var(--sage-wash);
  color: var(--sage-dark);
}

.card-label.free-coffee {
  background: var(--gold);
  color: white;
}

.card-label.redeemed {
  background: var(--cream-dark);
  color: var(--muted);
}

.card-label svg {
  width: 12px;
  height: 12px;
}

/* Mini stamp grid for staff view */
.mini-stamps-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0.5rem;
}

.mini-stamp-slot {
  aspect-ratio: 1;
  border-radius: 50%;
  border: 1.5px dashed var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--cream);
  max-width: 36px;
}

.mini-stamp-slot.filled {
  border: 1.5px solid var(--sage);
  background: var(--sage-wash);
}

.mini-stamp-slot.filled svg {
  color: var(--sage-dark);
}

.mini-stamp-slot:last-child {
  border-color: var(--gold);
  background: var(--gold-pale);
}

.mini-stamp-slot:last-child.filled {
  border-style: solid;
}

.mini-stamp-slot:last-child:not(.filled) svg {
  color: var(--gold);
  opacity: 0.4;
}

/* Redeemed card stamps are muted */
.staff-stamp-card.redeemed .mini-stamp-slot {
  border-color: var(--muted);
  background: var(--cream-dark);
  opacity: 0.5;
}

.staff-stamp-card.redeemed .mini-stamp-slot.filled {
  background: var(--muted);
}

.staff-stamp-card.redeemed .mini-stamp-slot.filled svg {
  color: white;
}

.stamp-actions {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.action-btn {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  width: 100%;
  padding: 0.95rem 1.25rem;
  border: 1.5px solid transparent;
  border-radius: var(--radius-md);
  font-size: 1rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.15s ease;
  color: var(--charcoal);
}

.action-btn:active {
  transform: scale(0.98);
}

.action-icon {
  width: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Add stamp — terracotta tint */
.stamp-btn {
  background: var(--terra-pale);
  border-color: rgba(196, 114, 78, 0.2);
  color: var(--charcoal);
}

.stamp-btn:hover {
  background: var(--terra-light);
  border-color: var(--terra);
}

.stamp-btn .action-icon svg {
  stroke: var(--terra);
}

/* Own cup — sage/green tint */
.owncup-btn {
  background: var(--sage-wash);
  border-color: rgba(143, 172, 127, 0.3);
}

.owncup-btn:hover {
  background: var(--sage-pale);
  border-color: var(--sage);
}

.owncup-btn .action-icon svg {
  stroke: var(--sage-dark);
}

/* Redeem — gold tint */
.redeem-btn {
  background: var(--gold-pale);
  border-color: rgba(201, 168, 76, 0.35);
}

.redeem-btn:hover {
  background: #fdf3d5;
  border-color: var(--gold);
}

.redeem-btn .action-icon svg {
  fill: var(--gold);
  stroke: var(--gold);
}

.staff-feedback {
  margin-top: 0.875rem;
  padding: 0.875rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  text-align: center;
  animation: slideUp 0.2s ease;
}

.staff-feedback.success {
  background: var(--green-bg);
  color: var(--green-ok);
  border: 1px solid rgba(74, 124, 89, 0.2);
}

.staff-feedback.error {
  background: var(--red-bg);
  color: var(--red-err);
  border: 1px solid rgba(185, 64, 64, 0.15);
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

/* ============================================
   QR SCANNER
   ============================================ */
.scanner-container {
  position: fixed;
  inset: 0;
  background: black;
  z-index: 50;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.scanner-container video {
  width: 100%;
  max-width: 400px;
}

.scanner-overlay {
  position: absolute;
  width: 220px;
  height: 220px;
  border: 3px solid white;
  border-radius: 20px;
  box-shadow: 0 0 0 9999px rgba(0, 0, 0, 0.6);
}

.scanner-close {
  position: absolute;
  bottom: 3rem;
  padding: 0.875rem 2.5rem;
  background: white;
  border: none;
  border-radius: 12px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--charcoal);
  cursor: pointer;
  transition: transform 0.15s;
}

.scanner-close:active {
  transform: scale(0.97);
}

/* ============================================
   LOGOUT BUTTON
   ============================================ */
.logout-btn {
  margin: auto 1.25rem 1.5rem;
  padding: 0.875rem 1rem;
  background: none;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  color: var(--muted);
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.2s;
}

.logout-btn:hover {
  border-color: var(--terra);
  color: var(--terra);
  background: var(--terra-pale);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (min-width: 480px) {
  .logo-image {
    width: 150px;
    height: 150px;
  }

  .stamps-grid {
    gap: 1rem;
  }
}

@media (max-height: 700px) {
  .auth-container {
    justify-content: flex-start;
    padding-top: 2.5rem;
  }

  .logo {
    margin-bottom: 1.75rem;
  }

  .logo-image {
    width: 96px;
    height: 96px;
  }
}