/* ============================================================
   GNRef — Design System
   Baseado na identidade visual do portal GN1 (portal.gn1growth.com)
   Tema escuro. Sem alternância light/dark.
   ============================================================ */

/* Fonte Inter via Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

/* ============================================================
   Tokens de design
   ============================================================ */
:root {
  /* Fundos */
  --bg-base:        #0d1b2a;
  --bg-card:        #1a2535;
  --bg-input:       #111e2e;
  --bg-hover:       #1f2f42;

  /* Cor primária — verde-ciano GN1 */
  --primary:        #00e5b4;
  --primary-hover:  #00c49a;
  --primary-text:   #0d1b2a;

  /* Texto */
  --text-primary:   #ffffff;
  --text-secondary: #8899aa;
  --text-muted:     #4a6080;

  /* Bordas */
  --border:         #1e3048;
  --border-focus:   #00e5b4;

  /* Status */
  --success:        #00e5b4;
  --success-bg:     #0a2820;
  --warning:        #f6ad55;
  --warning-bg:     #2a1f0a;
  --error:          #e05252;
  --error-bg:       #2a0f0f;
  --info:           #63b3ed;
  --info-bg:        #0a1e2a;

  /* Bordas arredondadas */
  --radius-sm:  6px;
  --radius-md:  10px;
  --radius-lg:  14px;
  --spacing:    24px;
}

/* ============================================================
   Reset e base
   ============================================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { font-size: 15px; }

body {
  background: var(--bg-base);
  color: var(--text-primary);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}
a:hover { color: var(--primary-hover); }

/* ============================================================
   Layout base
   ============================================================ */
.main-content {
  max-width: 1100px;
  margin: 0 auto;
  padding: 32px 24px;
}

.page-header {
  margin-bottom: 28px;
}

.page-title {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.page-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============================================================
   Navbar
   ============================================================ */
.navbar {
  background: var(--bg-card);
  border-bottom: 1px solid var(--border);
  padding: 0 32px;
  height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 100;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 16px;
  color: var(--text-primary);
  text-decoration: none;
}

.navbar-brand:hover { color: var(--text-primary); }

.navbar-tag {
  background: var(--primary);
  color: var(--primary-text);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 8px;
  border-radius: 4px;
}

.navbar-nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.navbar-link {
  font-size: 13px;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.15s, background 0.15s;
  text-decoration: none;
}

.navbar-link:hover,
.navbar-link.active {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.navbar-link.active { color: var(--primary); }

.navbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.navbar-user {
  font-size: 13px;
  color: var(--text-secondary);
}

/* ============================================================
   Botões
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  border: none;
  border-radius: var(--radius-md);
  font-family: inherit;
  font-weight: 600;
  font-size: 14px;
  padding: 10px 20px;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background: var(--primary);
  color: var(--primary-text);
}
.btn-primary:hover:not(:disabled) { background: var(--primary-hover); }

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.btn-secondary:hover:not(:disabled) {
  border-color: var(--primary);
  background: var(--bg-hover);
}

.btn-danger {
  background: transparent;
  color: var(--error);
  border: 1px solid var(--error);
}
.btn-danger:hover:not(:disabled) { background: var(--error-bg); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: none;
}
.btn-ghost:hover:not(:disabled) {
  color: var(--text-primary);
  background: var(--bg-hover);
}

.btn-sm {
  padding: 5px 12px;
  font-size: 12px;
  border-radius: var(--radius-sm);
}

.btn-full { width: 100%; }

.btn-icon {
  padding: 8px;
  border-radius: var(--radius-sm);
}

/* ============================================================
   Formulários
   ============================================================ */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
  margin-bottom: 16px;
}

.form-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
}

.form-input,
.form-select,
.form-textarea {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: inherit;
  font-size: 14px;
  padding: 10px 14px;
  width: 100%;
  transition: border-color 0.15s;
  outline: none;
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(0, 229, 180, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder { color: var(--text-muted); }

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 24 24' fill='none' stroke='%238899aa' stroke-width='2'%3E%3Cpath d='M6 9l6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
  cursor: pointer;
}

.form-select option {
  background: var(--bg-card);
  color: var(--text-primary);
}

.form-textarea { resize: vertical; min-height: 100px; }

.form-hint {
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-row-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 16px;
}

/* ============================================================
   Cards
   ============================================================ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--spacing);
}

.card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 4px;
}

.card-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 20px;
}

/* Card de ação do dashboard */
.action-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px var(--spacing);
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  text-decoration: none;
  display: block;
}

.action-card:hover {
  border-color: var(--primary);
  background: var(--bg-hover);
  transform: translateY(-2px);
}

.action-card-icon {
  font-size: 32px;
  margin-bottom: 14px;
  display: block;
}

.action-card-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.action-card-desc {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.5;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 16px;
}

/* ============================================================
   Tabelas
   ============================================================ */
.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
}

.table {
  width: 100%;
  border-collapse: collapse;
}

.table th {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  padding: 12px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  background: var(--bg-card);
  white-space: nowrap;
}

.table td {
  font-size: 13px;
  color: var(--text-primary);
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
  background: var(--bg-card);
}

.table tbody tr:hover td {
  background: var(--bg-hover);
  cursor: pointer;
}

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

.table-empty {
  text-align: center;
  color: var(--text-muted);
  padding: 48px 16px;
  font-size: 14px;
}

/* ============================================================
   Badges
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.04em;
  white-space: nowrap;
}

.badge-success { background: var(--success-bg); color: var(--success); }
.badge-error   { background: var(--error-bg);   color: var(--error);   }
.badge-warning { background: var(--warning-bg); color: var(--warning); }
.badge-info    { background: var(--info-bg);    color: var(--info);    }
.badge-muted   { background: var(--bg-hover);   color: var(--text-secondary); }

/* ============================================================
   Alertas
   ============================================================ */
.alert {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: 13px;
  margin-bottom: 16px;
  line-height: 1.5;
}

.alert svg { flex-shrink: 0; margin-top: 1px; }

.alert-success { background: var(--success-bg); color: var(--success); border: 1px solid rgba(0,229,180,0.2); }
.alert-error   { background: var(--error-bg);   color: var(--error);   border: 1px solid rgba(224,82,82,0.2); }
.alert-warning { background: var(--warning-bg); color: var(--warning); border: 1px solid rgba(246,173,85,0.2); }
.alert-info    { background: var(--info-bg);    color: var(--info);    border: 1px solid rgba(99,179,237,0.2); }

/* ============================================================
   Modal
   ============================================================ */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 200;
  padding: 24px;
}

.modal-overlay.hidden { display: none; }

.modal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px;
  width: 100%;
  max-width: 640px;
  max-height: 85vh;
  overflow-y: auto;
}

.modal-lg { max-width: 860px; }

.modal-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 20px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--border);
}

.modal-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--text-primary);
}

.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 2px 6px;
  border-radius: var(--radius-sm);
}
.modal-close:hover { color: var(--text-primary); background: var(--bg-hover); }

.modal-footer {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 24px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

/* ============================================================
   Wizard de steps
   ============================================================ */
.steps {
  display: flex;
  align-items: center;
  margin-bottom: 32px;
  padding: 20px var(--spacing);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
}

.step-circle {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  font-weight: 700;
  flex-shrink: 0;
  border: 2px solid var(--border);
  color: var(--text-muted);
  background: transparent;
  transition: all 0.2s;
}

.step.active .step-circle {
  border-color: var(--primary);
  color: var(--primary);
}

.step.done .step-circle {
  border-color: var(--primary);
  background: var(--primary);
  color: var(--primary-text);
}

.step-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-muted);
  white-space: nowrap;
}

.step.active .step-label {
  color: var(--primary);
  font-weight: 600;
}

.step.done .step-label { color: var(--text-secondary); }

.step-line {
  flex: 1;
  height: 1px;
  background: var(--border);
  margin: 0 10px;
  min-width: 20px;
  transition: background 0.2s;
}

.step-line.done { background: var(--primary); }

/* ============================================================
   Área de upload drag-and-drop
   ============================================================ */
.upload-zone {
  border: 2px dashed var(--border);
  border-radius: var(--radius-lg);
  padding: 48px 32px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}

.upload-zone:hover,
.upload-zone.drag-over {
  border-color: var(--primary);
  background: rgba(0, 229, 180, 0.04);
}

.upload-icon {
  font-size: 40px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: block;
}

.upload-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.upload-sub {
  font-size: 13px;
  color: var(--text-secondary);
}

.upload-file-list {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  text-align: left;
}

.upload-file-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
  font-size: 13px;
}

.upload-file-name { color: var(--text-primary); }
.upload-file-size { color: var(--text-muted); font-size: 12px; }

/* ============================================================
   Spinner de carregamento
   ============================================================ */
.spinner {
  width: 36px;
  height: 36px;
  border: 3px solid var(--border);
  border-top-color: var(--primary);
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}

.spinner-sm {
  width: 18px;
  height: 18px;
  border-width: 2px;
}

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

.loading-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 64px 32px;
  gap: 16px;
}

.loading-text {
  font-size: 14px;
  color: var(--text-secondary);
}

/* ============================================================
   XML Preview com syntax highlighting
   ============================================================ */
.xml-preview {
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 20px;
  overflow-x: auto;
  font-family: 'Fira Mono', 'Courier New', monospace;
  font-size: 12px;
  line-height: 1.7;
  max-height: 500px;
  overflow-y: auto;
  white-space: pre;
}

.xml-tag     { color: #63b3ed; }
.xml-attr    { color: var(--primary); }
.xml-value   { color: #f6ad55; }
.xml-text    { color: var(--text-primary); }
.xml-comment { color: var(--text-muted); font-style: italic; }

/* ============================================================
   Paginação
   ============================================================ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}

.pagination-info {
  font-size: 13px;
  color: var(--text-secondary);
}

.pagination-controls {
  display: flex;
  gap: 6px;
}

.pagination-btn {
  min-width: 34px;
  height: 34px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: transparent;
  color: var(--text-secondary);
  font-size: 13px;
  font-family: inherit;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.15s;
}

.pagination-btn:hover:not(:disabled) {
  border-color: var(--primary);
  color: var(--primary);
}

.pagination-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--primary-text);
  font-weight: 600;
}

.pagination-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

/* ============================================================
   Filtros de tabela
   ============================================================ */
.filters-bar {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 20px;
  padding: 16px var(--spacing);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  align-items: flex-end;
}

.filters-bar .form-group { margin-bottom: 0; min-width: 160px; }

/* ============================================================
   Abas (tabs)
   ============================================================ */
.tabs {
  display: flex;
  gap: 2px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 24px;
}

.tab-btn {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-secondary);
  font-family: inherit;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 20px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  margin-bottom: -1px;
}

.tab-btn:hover { color: var(--text-primary); }

.tab-btn.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.tab-panel { display: none; }
.tab-panel.active { display: block; }

/* ============================================================
   Lista de referências
   ============================================================ */
.ref-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 400px;
  overflow-y: auto;
  padding-right: 4px;
}

.ref-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 14px;
  font-size: 12px;
}

.ref-number {
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  min-width: 24px;
  padding-top: 1px;
}

.ref-content { flex: 1; }

.ref-raw {
  color: var(--text-secondary);
  line-height: 1.5;
  margin-bottom: 6px;
}

.ref-doi-row {
  display: flex;
  align-items: center;
  gap: 8px;
}

.ref-doi-input {
  flex: 1;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-family: 'Fira Mono', monospace;
  font-size: 12px;
  padding: 5px 10px;
  outline: none;
  transition: border-color 0.15s;
}

.ref-doi-input:focus { border-color: var(--border-focus); }
.ref-doi-input.resolved { border-color: rgba(0,229,180,0.4); }

/* ============================================================
   Lista de autores
   ============================================================ */
.author-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 8px;
}

.author-item {
  display: grid;
  grid-template-columns: 1fr 1fr 180px auto;
  gap: 8px;
  align-items: center;
  background: var(--bg-input);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 12px;
}

/* ============================================================
   Seção de divider
   ============================================================ */
.section-divider {
  border: none;
  border-top: 1px solid var(--border);
  margin: 24px 0;
}

.section-title {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 16px;
}

/* ============================================================
   Tela de login
   ============================================================ */
.login-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 24px;
}

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

.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px 36px;
}

.login-header {
  text-align: center;
  margin-bottom: 32px;
}

.login-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
}

.login-title {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 6px;
}

.login-subtitle {
  font-size: 13px;
  color: var(--text-secondary);
}

.login-form { margin-bottom: 20px; }

.login-footer {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.6;
}

/* ============================================================
   Utilitários
   ============================================================ */
.hidden { display: none !important; }

.text-primary   { color: var(--text-primary); }
.text-secondary { color: var(--text-secondary); }
.text-muted     { color: var(--text-muted); }
.text-success   { color: var(--success); }
.text-error     { color: var(--error); }
.text-warning   { color: var(--warning); }

.text-sm  { font-size: 13px; }
.text-xs  { font-size: 11px; }
.text-lg  { font-size: 18px; }

.font-mono { font-family: 'Fira Mono', 'Courier New', monospace; }

.fw-600 { font-weight: 600; }
.fw-700 { font-weight: 700; }

.mt-4  { margin-top: 4px; }
.mt-8  { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }

.mb-4  { margin-bottom: 4px; }
.mb-8  { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }

.flex           { display: flex; }
.flex-center    { display: flex; align-items: center; }
.flex-between   { display: flex; align-items: center; justify-content: space-between; }
.gap-8          { gap: 8px; }
.gap-12         { gap: 12px; }
.gap-16         { gap: 16px; }

.truncate {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 260px;
}

.mono {
  font-family: 'Fira Mono', 'Courier New', monospace;
  font-size: 12px;
}

/* Scrollbar customizada para o tema escuro */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-base); }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }