:root {
  --bg-1: #f5f7ff;
  --bg-2: #dfe9ff;
  --panel: rgba(255, 255, 255, 0.78);
  --panel-strong: #ffffff;
  --ink: #172033;
  --ink-soft: #52617a;
  --primary: #4563ff;
  --primary-dark: #2943d8;
  --accent: #10b7a7;
  --accent-soft: rgba(16, 183, 167, 0.12);
  --danger: #ef5858;
  --border: rgba(23, 32, 51, 0.12);
  --shadow: 0 22px 50px rgba(39, 56, 103, 0.16);
}

* {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  min-height: 100%;
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(69, 99, 255, 0.16), transparent 28%),
    radial-gradient(circle at bottom right, rgba(16, 183, 167, 0.2), transparent 32%),
    linear-gradient(135deg, var(--bg-1), var(--bg-2));
}

body {
  min-height: 100vh;
}

.auth-page {
  display: grid;
  place-items: center;
  padding: 2rem 1rem;
}

.login-shell {
  width: min(100%, 460px);
}

.login-card {
  position: relative;
  background: rgba(255, 255, 255, 0.7);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 26px;
  box-shadow: var(--shadow);
  padding: 2rem 1.75rem 1.5rem;
  backdrop-filter: blur(10px);
}

.login-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(69, 99, 255, 0.06), rgba(16, 183, 167, 0.08));
  border-radius: inherit;
  pointer-events: none;
}

.login-branding,
.login-subtitle,
.login-form,
.login-error {
  position: relative;
  z-index: 1;
}

.login-branding {
  display: flex;
  align-items: center;
  gap: 0.9rem;
  margin-bottom: 0.5rem;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: white;
  font-weight: 800;
  letter-spacing: 0.08em;
  box-shadow: 0 12px 24px rgba(69, 99, 255, 0.28);
}

.login-kicker {
  margin: 0;
  color: var(--primary);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.login-title {
  margin: 0.18rem 0 0;
  font-size: clamp(2rem, 5vw, 2.4rem);
  line-height: 1.1;
}

.login-subtitle {
  margin: 0.8rem 0 1.3rem;
  color: var(--ink-soft);
  line-height: 1.5;
}

.login-form {
  display: grid;
  gap: 1rem;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  font-weight: 600;
  color: var(--ink);
}

.login-field span {
  font-size: 0.92rem;
}

.login-field input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.9);
  padding: 0.9rem 1rem;
  font: inherit;
  color: var(--ink);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.login-field input:focus {
  outline: none;
  border-color: rgba(69, 99, 255, 0.6);
  box-shadow: 0 0 0 4px rgba(69, 99, 255, 0.12);
}

.login-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  margin-top: -0.2rem;
  font-size: 0.92rem;
}

.remember-me {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: var(--ink-soft);
  cursor: pointer;
}

.remember-me input {
  accent-color: var(--primary);
  width: 1rem;
  height: 1rem;
}

.text-link {
  color: var(--primary);
  text-decoration: none;
  font-weight: 600;
}

.text-link:hover {
  text-decoration: underline;
}

.login-submit {
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  font-size: 1rem;
  font-weight: 700;
  padding: 0.9rem 1rem;
  cursor: pointer;
  box-shadow: 0 14px 28px rgba(69, 99, 255, 0.2);
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.login-submit:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 30px rgba(69, 99, 255, 0.25);
}

.login-error {
  margin: 1rem 0 0;
  padding: 0.8rem 0.9rem;
  border-radius: 10px;
  background: rgba(239, 88, 88, 0.08);
  border: 1px solid rgba(239, 88, 88, 0.2);
  color: #b81d1d;
  font-weight: 600;
}

@media (max-width: 520px) {
  .login-card {
    padding: 1.4rem 1.1rem 1.2rem;
  }

  .login-meta {
    align-items: flex-start;
    flex-direction: column;
  }
}

.dashboard-page {
  min-height: 100vh;
  padding: 2rem 1.25rem;
}

.dashboard-shell {
  width: min(1200px, 100%);
  margin: 0 auto;
  display: grid;
  gap: 1.25rem;
}

.card {
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(255, 255, 255, 0.7);
  border-radius: 24px;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.dashboard-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.4rem 1.5rem;
}

.dashboard-header h1 {
  margin: 0.2rem 0 0;
  font-size: clamp(2rem, 4vw, 2.8rem);
  line-height: 1.1;
}

.eyebrow {
  margin: 0;
  color: var(--primary);
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  font-weight: 700;
}

.logout-form {
  margin: 0;
}

.primary-btn,
.secondary-btn,
.danger-btn,
.table-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease;
}

.primary-btn,
.table-link {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: white;
  box-shadow: 0 12px 24px rgba(69, 99, 255, 0.2);
}

.secondary-btn {
  background: rgba(69, 99, 255, 0.08);
  color: var(--primary-dark);
  border-color: rgba(69, 99, 255, 0.14);
}

.danger-btn {
  background: rgba(239, 88, 88, 0.08);
  color: #b82828;
  border-color: rgba(239, 88, 88, 0.18);
}

.primary-btn:hover,
.secondary-btn:hover,
.danger-btn:hover,
.table-link:hover {
  transform: translateY(-1px);
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.15rem 1.3rem;
}

.upload-form {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.upload-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-weight: 600;
  color: var(--ink);
}

.upload-label input[type="file"] {
  min-width: 220px;
  padding: 0.6rem 0.8rem;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: 12px;
}

.as-link {
  min-height: 44px;
}

.banner {
  padding: 0.9rem 1rem;
  border-radius: 14px;
  font-weight: 600;
  border: 1px solid transparent;
}

.banner-error {
  background: rgba(239, 88, 88, 0.08);
  border-color: rgba(239, 88, 88, 0.2);
  color: #ab1a1a;
}

.banner-success {
  background: rgba(16, 183, 167, 0.08);
  border-color: rgba(16, 183, 167, 0.22);
  color: #0d6c60;
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1rem;
}

.summary-card {
  padding: 1rem 1.1rem;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.summary-label {
  color: var(--ink-soft);
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 700;
}

.summary-value {
  font-size: clamp(1.4rem, 3vw, 2rem);
  line-height: 1.2;
  word-break: break-word;
}

.file-name {
  font-size: 1rem;
}

.table-card {
  padding: 1.15rem 1.2rem 1.2rem;
}

.table-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1rem;
}

.table-heading h2 {
  margin: 0;
  font-size: 1.5rem;
}

.status-badge {
  padding: 0.45rem 0.7rem;
  border-radius: 999px;
  background: rgba(16, 183, 167, 0.08);
  color: #0f7667;
  font-size: 0.8rem;
  font-weight: 700;
}

.table-wrap {
  overflow-x: auto;
}

.inventory-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 760px;
}

.inventory-table th,
.inventory-table td {
  padding: 0.8rem 0.75rem;
  border-bottom: 1px solid rgba(23, 32, 51, 0.08);
  text-align: left;
  vertical-align: top;
}

.inventory-table thead th {
  background: rgba(69, 99, 255, 0.05);
  color: var(--ink);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.inventory-table tbody tr:hover {
  background: rgba(69, 99, 255, 0.02);
}

.table-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
  white-space: nowrap;
}

.inline-delete-form { margin: 0; }

.empty-state {
  padding: 2rem 1rem;
  text-align: center;
  color: var(--ink-soft);
}

.empty-state h3 {
  margin: 0 0 0.5rem;
  font-size: 1.5rem;
  color: var(--ink);
}

@media (max-width: 900px) {
  .summary-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .dashboard-header,
  .toolbar,
  .table-heading {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .upload-form {
    width: 100%;
    flex-direction: column;
    align-items: stretch;
  }

  .upload-label {
    flex-direction: column;
    align-items: flex-start;
  }

  .upload-label input[type="file"] {
    width: 100%;
  }
}

.delete-btn {
  background: #a22a2a;
  padding: 0.42rem 0.8rem;
  font-size: 0.85rem;
}

.logout-btn {
  background: #2f3a4d;
  padding: 0.42rem 0.8rem;
  font-size: 0.85rem;
}

.delete-btn:hover {
  filter: brightness(1.08);
}

.table-headline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 0.8rem;
}

.table-headline h2 {
  margin: 0;
}

.table-wrap {
  overflow: auto;
  border: 1px solid var(--border);
  border-radius: 12px;
}

table {
  width: 100%;
  border-collapse: collapse;
  min-width: 580px;
}

th,
td {
  border-bottom: 1px solid var(--border);
  padding: 0.62rem 0.7rem;
  text-align: left;
  font-size: 0.94rem;
}

.table-barcode {
  display: block;
  min-width: 180px;
  max-width: 220px;
  width: 100%;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.3rem;
}

.barcode-missing {
  color: var(--ink-soft);
  font-size: 0.86rem;
}

.note-text {
  margin: 0.7rem 0 0;
  color: var(--ink-soft);
  font-size: 0.9rem;
}

.detail-card h1 {
  margin: 0;
}

.detail-headline {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 1rem;
  margin-bottom: 1rem;
}

.detail-grid {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.detail-item {
  padding: 0.9rem;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.65);
}

.detail-label {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--ink-soft);
  font-family: "DM Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

.detail-value {
  display: block;
  font-weight: 600;
  color: var(--ink);
  word-break: break-word;
}

.barcode-preview {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
  text-align: center;
}

.detail-actions {
  margin-top: 1rem;
}

.quantity-panel {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--border);
}

.quantity-metrics {
  display: grid;
  gap: 0.8rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.quantity-form-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.quantity-form {
  margin-top: 1rem;
  display: grid;
  gap: 0.7rem;
  max-width: 320px;
}

.quantity-form label {
  font-weight: 600;
}

.quantity-form input {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.65rem 0.7rem;
  font: inherit;
  background: rgba(255, 255, 255, 0.8);
}

@media (max-width: 720px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }

  .detail-headline {
    flex-direction: column;
    align-items: flex-start;
  }

  .quantity-metrics {
    grid-template-columns: 1fr;
  }

  .quantity-form-grid {
    grid-template-columns: 1fr;
  }
}

th {
  position: sticky;
  top: 0;
  background: #edf4fa;
  font-family: "DM Mono", monospace;
  font-size: 0.82rem;
  letter-spacing: 0.04em;
}

tbody tr:nth-child(2n) {
  background: rgba(219, 233, 244, 0.35);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 720px) {
  .shell {
    margin: 1.2rem auto;
  }

  .card {
    padding: 1rem;
  }

  table {
    min-width: 460px;
  }

  .details-grid {
    grid-template-columns: 1fr;
  }
}