/* =====================================================================
   DATA ENGENHARIA — DESIGN TOKENS (ref.: _LLM/model.html)
   ===================================================================== */
:root {
  --brand-dark:      #575756;
  --brand-dark-2:    #6b6b6a;
  --primary:         #2563eb;
  --primary-hover:   #1d4ed8;
  --primary-soft:    #dbeafe;
  --accent:          #B31918;
  --accent-hover:    #8f1413;
  --accent-soft:     #fbe3e3;

  --bg:              #f3f4f6;
  --surface:         #ffffff;
  --surface-2:       #f9fafb;
  --border:          #e5e7eb;
  --border-strong:   #d1d5db;

  --text:            #18181b;
  --text-2:          #374151;
  --text-muted:      #6b7280;
  --text-faint:      #9ca3af;
  --text-on-dark:    #f9fafb;

  --success:         #10b981;  --success-bg: #d1fae5; --success-fg: #065f46;
  --warning:         #f59e0b;  --warning-bg: #fef3c7; --warning-fg: #92400e;
  --danger:          #ef4444;  --danger-bg:  #fee2e2; --danger-fg:  #991b1b;
  --info:            #06b6d4;  --info-bg:    #cffafe; --info-fg:    #155e75;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --radius-sm: 6px;
  --radius:    10px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(16,24,40,.06), 0 1px 3px rgba(16,24,40,.04);
  --shadow:    0 4px 6px -1px rgba(16,24,40,.08), 0 2px 4px -2px rgba(16,24,40,.05);
  --shadow-lg: 0 12px 24px -8px rgba(16,24,40,.18);
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font); background: var(--bg); color: var(--text); line-height: 1.55; -webkit-font-smoothing: antialiased; }
a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }
code { font-family: var(--font-mono); font-size: .85em; background: var(--surface-2); border: 1px solid var(--border); padding: .1em .4em; border-radius: 4px; color: var(--text-2); }

/* ====================== LAYOUT SHELL ====================== */
.app { display: flex; min-height: 100vh; }
.sidebar { width: 256px; flex-shrink: 0; background: var(--brand-dark); color: var(--text-on-dark); display: flex; flex-direction: column; position: sticky; top: 0; height: 100vh; }
.sidebar-brand { display: flex; align-items: center; gap: 12px; padding: 22px 20px; border-bottom: 1px solid var(--brand-dark-2); font-weight: 800; font-size: 18px; letter-spacing: .5px; }
.sidebar-brand .logo { width: 34px; height: 34px; border-radius: 8px; flex-shrink: 0; background: var(--accent); display: grid; place-items: center; color: #fff; font-size: 16px; }
.sidebar-brand small { display: block; font-weight: 500; font-size: 11px; color: var(--text-faint); letter-spacing: 1px; text-transform: uppercase; }
.nav { list-style: none; padding: 12px 0; flex: 1; }
.nav a { display: flex; align-items: center; gap: 14px; padding: 12px 22px; color: #e5e7eb; font-size: 14.5px; font-weight: 500; border-left: 3px solid transparent; transition: background .15s, color .15s, border-color .15s; }
.nav a:hover { background: var(--brand-dark-2); color: #fff; text-decoration: none; }
.nav a.active { background: var(--brand-dark-2); color: #fff; border-left-color: var(--primary); }
.nav a i { width: 18px; text-align: center; font-size: 16px; }
.sidebar-foot { padding: 16px 20px; border-top: 1px solid var(--brand-dark-2); font-size: 12px; color: var(--text-faint); }

.main { flex: 1; min-width: 0; }
.topbar { background: var(--surface); border-bottom: 1px solid var(--border); padding: 16px 32px; display: flex; align-items: center; justify-content: space-between; position: sticky; top: 0; z-index: 10; box-shadow: var(--shadow-sm); }
.topbar h1 { font-size: 18px; font-weight: 700; }
.topbar .user { display: flex; align-items: center; gap: 10px; color: var(--text-muted); font-size: 14px; }
.avatar { width: 34px; height: 34px; border-radius: 50%; background: var(--primary-soft); color: var(--primary); display: grid; place-items: center; font-weight: 700; font-size: 13px; flex-shrink: 0; }
.content { padding: 32px; max-width: 1200px; }

/* ====================== SECTIONS ====================== */
.section { margin-bottom: 44px; }
.section > h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-faint); font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 10px; }
.section > h2::after { content: ""; flex: 1; height: 1px; background: var(--border); }

/* ====================== CARD ====================== */
.card { background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; box-shadow: var(--shadow-sm); }
.grid { display: grid; gap: 20px; }
.grid.cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid.cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid.cols-4 { grid-template-columns: repeat(4, 1fr); }

/* API cards */
.api-card { display: block; color: inherit; transition: box-shadow .15s, transform .15s, border-color .15s; }
.api-card:hover { text-decoration: none; box-shadow: var(--shadow-lg); transform: translateY(-2px); border-color: var(--primary); }
.api-card-top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 10px; }
.api-card-top i { color: var(--text-faint); }
.api-card:hover .api-card-top i { color: var(--primary); }
.api-card h3 { font-size: 16px; font-weight: 700; margin-bottom: 2px; }
.api-nome { font-family: var(--font-mono); font-size: 12px; color: var(--text-muted); margin-bottom: 8px; }
.api-desc { font-size: 13px; color: var(--text-2); }

/* ====================== BUTTONS ====================== */
.btn { display: inline-flex; align-items: center; gap: 8px; cursor: pointer; padding: 10px 16px; border-radius: var(--radius-sm); border: 1px solid transparent; font-family: var(--font); font-size: 14px; font-weight: 600; transition: all .15s; }
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary { background: var(--primary); color: #fff; }
.btn-primary:hover { background: var(--primary-hover); }
.btn-accent  { background: var(--accent); color: #fff; }
.btn-accent:hover { background: var(--accent-hover); }
.btn-success { background: var(--success); color: #fff; }
.btn-danger  { background: var(--danger); color: #fff; }
.btn-ghost   { background: var(--surface); color: var(--text-2); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--surface-2); }
.btn-ghost-danger { background: var(--surface); color: var(--danger); border-color: var(--danger); }
.btn-ghost-danger:hover { background: var(--danger-bg); }
.btn-sm { padding: 6px 12px; font-size: 13px; }

/* ====================== FORMS ====================== */
.field { margin-bottom: 16px; }
label { display: block; font-size: 13px; font-weight: 600; color: var(--text-2); margin-bottom: 6px; }
input[type=text], input[type=email], select, textarea { width: 100%; padding: 10px 12px; font-family: var(--font); font-size: 14px; color: var(--text); background: var(--surface); border: 1px solid var(--border-strong); border-radius: var(--radius-sm); transition: border-color .15s, box-shadow .15s; }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px var(--primary-soft); }
.control { position: relative; }
.control > i { position: absolute; right: 12px; top: 50%; transform: translateY(-50%); color: var(--text-muted); pointer-events: none; font-size: 13px; }
select { appearance: none; -webkit-appearance: none; padding-right: 38px; cursor: pointer; }

/* ====================== BADGES ====================== */
.badge { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 11.5px; font-weight: 700; }
.badge.success { background: var(--success-bg); color: var(--success-fg); }
.badge.warning { background: var(--warning-bg); color: var(--warning-fg); }
.badge.danger  { background: var(--danger-bg);  color: var(--danger-fg); }
.badge.info    { background: var(--info-bg);    color: var(--info-fg); }
.badge.neutral { background: var(--border); color: var(--text-2); }

/* ====================== TABLE ====================== */
.table-wrap { border: 1px solid var(--border); border-radius: var(--radius); overflow: auto; background: var(--surface); }
table { width: 100%; border-collapse: collapse; font-size: 14px; }
thead { background: var(--surface-2); }
th { text-align: left; padding: 12px 14px; font-size: 12px; font-weight: 700; color: var(--text-2); border-bottom: 1px solid var(--border); white-space: nowrap; }
td { padding: 12px 14px; color: var(--text-2); border-bottom: 1px solid var(--border); }
tbody tr:last-child td { border-bottom: none; }
tbody tr:hover { background: var(--surface-2); }

/* ====================== ALERTS ====================== */
.alert { display: flex; gap: 12px; padding: 14px 16px; border-radius: var(--radius); font-size: 14px; border: 1px solid; margin-bottom: 20px; }
.alert i { font-size: 18px; margin-top: 1px; }
.alert.success { background: var(--success-bg); border-color: var(--success); color: var(--success-fg); }
.alert.warning { background: var(--warning-bg); border-color: var(--warning); color: var(--warning-fg); }
.alert.danger  { background: var(--danger-bg);  border-color: var(--danger);  color: var(--danger-fg); }
.alert.info    { background: var(--info-bg);    border-color: var(--info);    color: var(--info-fg); }

.note { font-size: 13px; color: var(--text-muted); margin-top: 8px; }

/* ====================== PERMISSÕES ====================== */
.perm-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(240px, 1fr)); gap: 6px; }
.perm-item { display: flex; align-items: center; gap: 8px; font-size: 13px; font-weight: 500; color: var(--text-2); padding: 6px 8px; border-radius: var(--radius-sm); cursor: pointer; }
.perm-item:hover { background: var(--surface-2); }
.perm-item input { width: auto; }

@media (max-width: 860px) {
  .sidebar { display: none; }
  .grid.cols-2, .grid.cols-3, .grid.cols-4 { grid-template-columns: 1fr; }
  .content { padding: 20px; }
}