/* ============================================================
   Vitae Gold — Gerador de SKU
   ============================================================ */

:root {
  --gold:       #C9A84C;
  --gold-light: #E8C96A;
  --gold-dark:  #A8862E;
  --dark:       #1A1A1A;
  --dark-2:     #2D2D2D;
  --gray-1:     #4A4A4A;
  --gray-2:     #7A7A7A;
  --gray-3:     #B0B0B0;
  --gray-4:     #E0E0E0;
  --bg:         #F5F4F0;
  --white:      #FFFFFF;
  --success:    #2E7D32;
  --success-bg: #E8F5E9;
  --warning:    #E65100;
  --warning-bg: #FFF3E0;
  --danger:     #C62828;
  --danger-bg:  #FFEBEE;

  --radius-sm:  6px;
  --radius:     10px;
  --radius-lg:  16px;
  --shadow-sm:  0 1px 4px rgba(0,0,0,.08);
  --shadow:     0 2px 12px rgba(0,0,0,.10);
  --shadow-lg:  0 4px 24px rgba(0,0,0,.13);
  --transition: .18s ease;
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg);
  color: var(--dark);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }
input, select { font-family: inherit; }
table { border-collapse: collapse; width: 100%; }

/* ---- Header ---- */
.site-header {
  background: var(--dark);
  border-bottom: 3px solid var(--gold);
  padding: 0 24px;
  position: sticky;
  top: 0;
  z-index: 100;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header-brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  height: 42px;
  width: auto;
  object-fit: contain;
}

.header-text h1 {
  font-size: 1.15rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.2;
}

.header-text p {
  font-size: .75rem;
  color: var(--gray-3);
  margin-top: 2px;
}

.header-badge span {
  background: rgba(201,168,76,.15);
  border: 1px solid rgba(201,168,76,.35);
  color: var(--gold-light);
  font-size: .7rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 20px;
}

/* ---- Main ---- */
.main-content {
  flex: 1;
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 28px 24px 48px;
}

/* ---- Tabs ---- */
.tabs-nav {
  display: flex;
  gap: 4px;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 6px;
  box-shadow: var(--shadow-sm);
  margin-bottom: 24px;
}

.tab-btn {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 16px;
  border: none;
  background: transparent;
  color: var(--gray-2);
  font-size: .875rem;
  font-weight: 500;
  border-radius: var(--radius);
  transition: var(--transition);
}

.tab-btn:hover {
  background: var(--bg);
  color: var(--dark);
}

.tab-btn.active {
  background: var(--gold);
  color: var(--white);
  font-weight: 600;
  box-shadow: 0 2px 8px rgba(201,168,76,.4);
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* ---- Cards ---- */
.card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 28px;
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  flex-wrap: wrap;
  gap: 12px;
}

.card-header h2 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--dark);
  display: flex;
  align-items: center;
  gap: 10px;
}

.format-hint {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
}

.format-label {
  color: var(--gray-2);
  font-weight: 500;
}

.format-hint code {
  background: var(--bg);
  border: 1px solid var(--gray-4);
  color: var(--gold-dark);
  font-size: .78rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: var(--radius-sm);
  font-family: 'SF Mono', 'Fira Mono', monospace;
  letter-spacing: .04em;
}

/* ---- Form ---- */
.form-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 16px;
  margin-bottom: 24px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: .8rem;
  font-weight: 600;
  color: var(--gray-1);
  text-transform: uppercase;
  letter-spacing: .05em;
}

.form-group input,
.form-group select {
  height: 44px;
  padding: 0 14px;
  border: 1.5px solid var(--gray-4);
  border-radius: var(--radius);
  font-size: .9rem;
  color: var(--dark);
  background: var(--white);
  transition: var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px rgba(201,168,76,.15);
}

.form-group input::placeholder {
  color: var(--gray-3);
}

.field-hint {
  font-size: .72rem;
  color: var(--gray-3);
}

/* ---- SKU Preview ---- */
.sku-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg);
  border: 2px dashed var(--gray-4);
  border-radius: var(--radius);
  padding: 18px 20px;
  margin-bottom: 20px;
  transition: var(--transition);
}

.sku-preview.has-value {
  background: rgba(201,168,76,.06);
  border-color: var(--gold);
  border-style: solid;
}

.preview-inner {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.preview-label {
  font-size: .72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--gray-2);
}

.preview-value {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--gray-3);
  font-family: 'SF Mono', 'Fira Mono', monospace;
  letter-spacing: .08em;
  transition: var(--transition);
}

.preview-value.active {
  color: var(--gold-dark);
}

/* ---- Buttons ---- */
.btn-copy {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  background: var(--dark);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: .85rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-copy:hover:not(:disabled) {
  background: var(--dark-2);
}

.btn-copy:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--gold);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 600;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-primary:hover:not(:disabled) {
  background: var(--gold-dark);
  box-shadow: 0 4px 12px rgba(201,168,76,.35);
}

.btn-primary:disabled {
  opacity: .4;
  cursor: not-allowed;
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: var(--white);
  color: var(--dark);
  border: 1.5px solid var(--gray-4);
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  transition: var(--transition);
  white-space: nowrap;
}

.btn-secondary:hover {
  border-color: var(--gold);
  color: var(--gold-dark);
  background: rgba(201,168,76,.05);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  background: transparent;
  color: var(--gray-2);
  border: none;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  transition: var(--transition);
}

.btn-ghost:hover {
  background: var(--bg);
  color: var(--dark);
}

.btn-danger:hover {
  color: var(--danger) !important;
  background: var(--danger-bg) !important;
}

.btn-group {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.form-actions {
  display: flex;
  gap: 10px;
  align-items: center;
}

/* ---- Duplicate Alert ---- */
.duplicate-alert {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--warning-bg);
  border: 1px solid var(--warning);
  color: var(--warning);
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: .85rem;
  font-weight: 500;
  margin-bottom: 16px;
}

/* ---- Count Badge ---- */
.count-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 22px;
  height: 22px;
  padding: 0 6px;
  background: var(--gold);
  color: var(--white);
  font-size: .72rem;
  font-weight: 700;
  border-radius: 20px;
}

/* ---- Tables ---- */
.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--gray-4);
}

table thead tr {
  background: var(--dark);
}

table thead th {
  padding: 12px 16px;
  text-align: left;
  font-size: .75rem;
  font-weight: 600;
  color: var(--gray-3);
  text-transform: uppercase;
  letter-spacing: .06em;
  white-space: nowrap;
}

table tbody tr {
  border-bottom: 1px solid var(--gray-4);
  transition: background var(--transition);
}

table tbody tr:last-child {
  border-bottom: none;
}

table tbody tr:hover {
  background: rgba(201,168,76,.05);
}

table tbody td {
  padding: 12px 16px;
  font-size: .875rem;
  color: var(--dark);
}

.sku-cell {
  font-family: 'SF Mono', 'Fira Mono', monospace;
  font-weight: 600;
  color: var(--gold-dark);
  letter-spacing: .04em;
}

.badge {
  display: inline-block;
  padding: 3px 8px;
  border-radius: 20px;
  font-size: .72rem;
  font-weight: 600;
}

.badge-ok {
  background: var(--success-bg);
  color: var(--success);
}

.badge-dup {
  background: var(--warning-bg);
  color: var(--warning);
}

.btn-remove {
  background: transparent;
  border: none;
  color: var(--gray-3);
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
}

.btn-remove:hover {
  color: var(--danger);
  background: var(--danger-bg);
}

/* ---- Drop Zone ---- */
.drop-zone {
  border: 2px dashed var(--gray-4);
  border-radius: var(--radius-lg);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: var(--transition);
  background: var(--bg);
  margin-top: 16px;
}

.drop-zone:hover,
.drop-zone.drag-over {
  border-color: var(--gold);
  background: rgba(201,168,76,.05);
}

.drop-zone-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.drop-icon {
  color: var(--gray-3);
  margin-bottom: 4px;
}

.drop-title {
  font-size: .95rem;
  color: var(--dark);
  font-weight: 500;
}

.drop-sub {
  font-size: .8rem;
  color: var(--gray-3);
}

/* ---- Help text ---- */
.help-text {
  font-size: .875rem;
  color: var(--gray-2);
  line-height: 1.5;
  margin-bottom: 4px;
}

/* ---- Empty State ---- */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 48px 24px;
  color: var(--gray-3);
}

.empty-state p {
  font-size: 1rem;
  font-weight: 600;
  color: var(--gray-2);
}

.empty-state span {
  font-size: .85rem;
}

/* ---- Toast ---- */
.toast {
  position: fixed;
  bottom: 24px;
  right: 24px;
  background: var(--dark);
  color: var(--white);
  padding: 12px 20px;
  border-radius: var(--radius);
  font-size: .875rem;
  font-weight: 500;
  box-shadow: var(--shadow-lg);
  transform: translateY(80px);
  opacity: 0;
  transition: all .3s ease;
  z-index: 1000;
  max-width: 320px;
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

.toast.success {
  border-left: 4px solid var(--gold);
}

.toast.error {
  border-left: 4px solid var(--danger);
}

/* ---- Footer ---- */
.site-footer {
  text-align: center;
  padding: 20px;
  font-size: .78rem;
  color: var(--gray-3);
  border-top: 1px solid var(--gray-4);
  background: var(--white);
}

/* ---- Login Screen ---- */
.login-screen {
  position: fixed;
  inset: 0;
  background: var(--dark);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 44px 40px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: var(--shadow-lg);
  display: flex;
  flex-direction: column;
  align-items: center;
  border-top: 4px solid var(--gold);
}

.login-logo {
  height: 52px;
  width: auto;
  margin-bottom: 16px;
}

.login-title {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--dark);
  margin: 0 0 4px;
}

.login-subtitle {
  font-size: .82rem;
  color: var(--gray-2);
  margin: 0 0 20px;
}

.login-error {
  width: 100%;
  font-size: .82rem;
  color: var(--danger);
  min-height: 18px;
  text-align: center;
  margin: 10px 0 0;
}

.btn-block {
  width: 100%;
  justify-content: center;
  margin-top: 14px;
  height: 46px;
  font-size: .95rem;
  letter-spacing: .02em;
}

.btn-block:disabled {
  opacity: .6;
  cursor: not-allowed;
}

/* ---- Logout ---- */
.btn-logout {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: transparent;
  color: var(--gray-3);
  border: 1px solid rgba(255,255,255,.15);
  border-radius: var(--radius);
  font-size: .8rem;
  font-weight: 500;
  cursor: pointer;
  transition: var(--transition);
  font-family: inherit;
  white-space: nowrap;
}

.btn-logout:hover {
  color: var(--white);
  border-color: rgba(255,255,255,.4);
  background: rgba(255,255,255,.08);
}

/* ---- Responsive ---- */
@media (max-width: 768px) {
  .main-content { padding: 16px 16px 40px; }
  .card { padding: 20px 16px; }
  .form-grid { grid-template-columns: 1fr 1fr; }
  .tabs-nav { gap: 2px; padding: 4px; }
  .tab-btn { font-size: .78rem; padding: 8px 10px; gap: 5px; }
  .header-inner { height: 60px; }
  .logo { height: 34px; }
  .header-text h1 { font-size: 1rem; }
  .card-header { flex-direction: column; align-items: flex-start; }
  .sku-preview { flex-direction: column; align-items: flex-start; gap: 14px; }
  .preview-value { font-size: 1.1rem; }
}

@media (max-width: 480px) {
  .form-grid { grid-template-columns: 1fr; }
  .btn-group { flex-direction: column; }
  .form-actions { flex-direction: column; align-items: stretch; }
}