:root {
  --bg: #0f172a;
  --bg-soft: #111c34;
  --panel: #ffffff;
  --panel-soft: #f8fafc;
  --line: #dbe4f0;
  --text: #172033;
  --muted: #5c6980;
  --primary: #2563eb;
  --primary-dark: #1d4ed8;
  --danger: #dc2626;
  --success: #15803d;
  --warning: #ca8a04;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
  --radius: 18px;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #e8eef8 0%, #f6f9fc 100%);
  color: var(--text);
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  border: none;
  cursor: pointer;
}

textarea {
  resize: vertical;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  background: var(--bg);
  color: #fff;
  padding: 28px 20px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  position: sticky;
  top: 0;
  height: 100vh;
}

.brand h1 {
  margin: 0;
  font-size: 1.6rem;
}

.brand p {
  margin: 6px 0 0;
  color: #b9c6dc;
}

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

.menu-link {
  width: 100%;
  padding: 14px 16px;
  background: transparent;
  color: #d9e2f0;
  border-radius: 12px;
  text-align: left;
  transition: 0.2s ease;
}

.menu-link:hover,
.menu-link.active {
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
}

.content {
  padding: 28px;
}

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 20px;
}

.topbar h2 {
  margin: 0;
  font-size: 1.8rem;
}

.topbar p {
  margin: 6px 0 0;
  color: var(--muted);
}

.topbar-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.page-section {
  display: none;
}

.page-section.active {
  display: block;
}

.stats-grid,
.panel-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
  margin-bottom: 18px;
}

.stat-card,
.panel-card {
  background: var(--panel);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid rgba(219, 228, 240, 0.9);
}

.stat-card {
  padding: 22px;
}

.stat-label {
  display: block;
  color: var(--muted);
  margin-bottom: 10px;
}

.stat-card strong {
  font-size: 2rem;
}

.panel-card {
  padding: 22px;
  margin-bottom: 18px;
}

.panel-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 18px;
}

.panel-header h3 {
  margin: 0;
  font-size: 1.15rem;
}

.panel-header.space-between {
  justify-content: space-between;
  flex-wrap: wrap;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-weight: 700;
  font-size: 0.95rem;
}

.form-group input,
.form-group select,
.form-group textarea,
.panel-header input,
.panel-header select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: var(--panel-soft);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus,
.panel-header input:focus,
.panel-header select:focus {
  outline: 2px solid rgba(37, 99, 235, 0.12);
  border-color: var(--primary);
}

.full-width {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.primary-btn,
.ghost-btn,
.file-trigger {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 12px 16px;
  border-radius: 12px;
  font-weight: 700;
  transition: 0.2s ease;
}

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

.primary-btn:hover {
  background: var(--primary-dark);
}

.ghost-btn,
.file-trigger {
  background: #eef4ff;
  color: var(--primary);
  border: 1px solid #c9dafd;
}

.ghost-btn:hover,
.file-trigger:hover {
  background: #dce9ff;
}

.table-wrapper {
  overflow: auto;
  border: 1px solid var(--line);
  border-radius: 16px;
}

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

.compact-table table {
  min-width: 100%;
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: top;
}

th {
  background: #f1f6fc;
  font-size: 0.9rem;
}

tr:last-child td {
  border-bottom: none;
}

.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 700;
}

.badge-stock {
  background: #dcfce7;
  color: var(--success);
}

.badge-use {
  background: #fee2e2;
  color: var(--danger);
}

.inline-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

.small-btn {
  padding: 8px 12px;
  border-radius: 10px;
  font-weight: 700;
}

.small-btn.edit {
  background: #e0ecff;
  color: var(--primary);
}

.small-btn.delete {
  background: #fee2e2;
  color: var(--danger);
}

.small-btn.return {
  background: #dcfce7;
  color: var(--success);
}

.selection-list {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 12px;
  border: 1px dashed var(--line);
  border-radius: 16px;
  padding: 14px;
  min-height: 84px;
  background: #f8fbff;
}

.selection-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  border-radius: 12px;
  background: #fff;
  border: 1px solid var(--line);
}

.selection-item strong {
  display: block;
  margin-bottom: 4px;
}

.import-box,
.summary-box,
.term-content {
  border: 1px solid var(--line);
  background: #f8fbff;
  border-radius: 16px;
  padding: 18px;
}

.summary-box {
  margin-top: 14px;
  white-space: pre-line;
}

.term-content {
  background: #fff;
  color: #111827;
}

.term-header {
  text-align: center;
  margin-bottom: 22px;
}

.term-header h3 {
  margin: 0 0 8px;
  font-size: 1.4rem;
}

.term-meta,
.term-signature {
  display: grid;
  gap: 14px;
}

.term-meta {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-bottom: 22px;
}

.term-box {
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px;
  background: #f8fafc;
}

.term-box strong {
  display: block;
  margin-bottom: 6px;
}

.term-signature {
  margin-top: 28px;
  grid-template-columns: 1fr 1fr;
}

.signature-line {
  margin-top: 48px;
  border-top: 1px solid #111827;
  padding-top: 10px;
  text-align: center;
}

.helper-text,
.empty-row,
.empty-state {
  color: var(--muted);
}

.empty-row,
.empty-state {
  text-align: center;
}

.hidden {
  display: none !important;
}

.toast-container {
  position: fixed;
  right: 20px;
  top: 20px;
  z-index: 999;
  display: grid;
  gap: 10px;
}

.toast {
  min-width: 260px;
  max-width: 340px;
  padding: 14px 16px;
  border-radius: 14px;
  color: #fff;
  box-shadow: var(--shadow);
}

.toast.success { background: var(--success); }
.toast.error { background: var(--danger); }
.toast.info { background: var(--primary); }
.toast.warning { background: var(--warning); }

code {
  background: #eef2ff;
  padding: 2px 6px;
  border-radius: 6px;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: static;
    height: auto;
  }

  .menu {
    flex-direction: row;
    flex-wrap: wrap;
  }

  .menu-link {
    width: auto;
  }

  .content {
    padding: 18px;
  }
}

@media (max-width: 720px) {
  .topbar,
  .panel-header.space-between,
  .form-grid,
  .term-meta,
  .term-signature {
    grid-template-columns: 1fr;
    display: grid;
  }

  .topbar {
    gap: 14px;
  }

  .topbar-actions,
  .form-actions {
    width: 100%;
  }

  .topbar-actions > *,
  .form-actions > * {
    width: 100%;
  }

  table {
    min-width: 680px;
  }
}

@media print {
  body {
    background: #fff;
  }

  .sidebar,
  .topbar,
  .toast-container,
  .no-print,
  .page-section:not(#termo) {
    display: none !important;
  }

  .content {
    padding: 0;
  }

  .page-section#termo {
    display: block !important;
  }

  .panel-card,
  .term-content,
  .table-wrapper {
    box-shadow: none;
    border: none;
  }
}