/* ============================================================
   app.css — Dark Luxury SaaS · Leitura de Contratos
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ── Reset & Base ────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  /* Paleta */
  --bg-900:   #0a0a0f;
  --bg-800:   #111118;
  --bg-700:   #18181f;
  --bg-600:   #1e1e28;
  --bg-500:   #252530;
  --border:   rgba(255,255,255,0.07);
  --text-100: #f1f1f6;
  --text-300: #a0a0b5;
  --text-500: #5a5a72;
  --gold:     #c9a84c;
  --gold-glow:rgba(201,168,76,0.25);
  --blue:     #4f8ef7;
  --blue-glow:rgba(79,142,247,0.2);
  --success:  #22c55e;
  --error:    #ef4444;
  --warning:  #f59e0b;

  /* Typography */
  --font: 'Inter', system-ui, sans-serif;

  /* Transitions */
  --t-fast:   150ms ease;
  --t-normal: 250ms ease;
  --t-slow:   400ms ease;
}

html { font-size: 16px; scroll-behavior: smooth; }

body {
  font-family: var(--font);
  background-color: var(--bg-900);
  color: var(--text-100);
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Scrollbar ───────────────────────────────────────────── */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: var(--bg-800); }
::-webkit-scrollbar-thumb { background: var(--bg-500); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ── Typography ──────────────────────────────────────────── */
h1,h2,h3,h4 { font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; }
h1 { font-size: clamp(1.5rem, 4vw, 2rem); }
h2 { font-size: 1.25rem; }
h3 { font-size: 1rem; }

/* ── Glassmorphism Card ───────────────────────────────────── */
.glass {
  background: rgba(255,255,255,0.035);
  border: 1px solid var(--border);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-radius: 14px;
}

.glass-gold {
  background: rgba(201,168,76,0.06);
  border: 1px solid rgba(201,168,76,0.2);
  border-radius: 14px;
}

/* ── Inputs & Forms ──────────────────────────────────────── */
.input-field {
  width: 100%;
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.65rem 1rem;
  color: var(--text-100);
  font-family: var(--font);
  font-size: 0.875rem;
  transition: border-color var(--t-fast), box-shadow var(--t-fast);
  outline: none;
}
.input-field::placeholder { color: var(--text-500); }
.input-field:focus {
  border-color: var(--gold);
  box-shadow: 0 0 0 3px var(--gold-glow);
}

label {
  display: block;
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-300);
  margin-bottom: 0.35rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

/* ── Buttons ─────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font);
  cursor: pointer;
  border: none;
  transition: all var(--t-fast);
  white-space: nowrap;
}

.btn-gold {
  background: linear-gradient(135deg, #c9a84c 0%, #e8c96a 50%, #c9a84c 100%);
  color: #0a0a0f;
  box-shadow: 0 4px 20px var(--gold-glow);
}
.btn-gold:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 28px rgba(201,168,76,0.4);
}
.btn-gold:active { transform: translateY(0); }

.btn-ghost {
  background: transparent;
  color: var(--text-300);
  border: 1px solid var(--border);
}
.btn-ghost:hover { background: var(--bg-600); color: var(--text-100); }

.btn-danger {
  background: rgba(239,68,68,0.12);
  color: var(--error);
  border: 1px solid rgba(239,68,68,0.25);
}
.btn-danger:hover { background: rgba(239,68,68,0.22); }

/* ── KPI Cards ───────────────────────────────────────────── */
.kpi-card {
  background: var(--bg-700);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 1.5rem;
  position: relative;
  overflow: hidden;
  transition: transform var(--t-normal), box-shadow var(--t-normal);
}
.kpi-card::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  background: radial-gradient(circle at 80% 20%, var(--gold-glow), transparent 60%);
  pointer-events: none;
  opacity: 0;
  transition: opacity var(--t-normal);
}
.kpi-card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(0,0,0,0.4); }
.kpi-card:hover::before { opacity: 1; }

.kpi-card .kpi-icon {
  width: 44px; height: 44px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.2rem;
  margin-bottom: 1rem;
}
.kpi-card .kpi-value { font-size: 2rem; font-weight: 700; letter-spacing: -0.04em; }
.kpi-card .kpi-label { font-size: 0.75rem; color: var(--text-300); text-transform: uppercase; letter-spacing: 0.07em; margin-top: 0.2rem; }
.kpi-card .kpi-trend { font-size: 0.75rem; margin-top: 0.75rem; color: var(--success); }

/* ── Sidebar ─────────────────────────────────────────────── */
#sidebar {
  width: 240px;
  min-height: 100vh;
  background: var(--bg-800);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  left: 0; top: 0; bottom: 0;
  z-index: 40;
  transition: width var(--t-normal), transform var(--t-normal);
  overflow: hidden;
}
#sidebar.collapsed { width: 68px; }
#sidebar.collapsed .nav-label,
#sidebar.collapsed .sidebar-logo-text,
#sidebar.collapsed .sidebar-user-info { opacity: 0; width: 0; overflow: hidden; }
#sidebar.collapsed .nav-item { justify-content: center; }

.nav-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  padding: 0.65rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--t-fast);
  color: var(--text-300);
  font-size: 0.875rem;
  font-weight: 500;
  margin: 0 0.5rem;
  white-space: nowrap;
  text-decoration: none;
}
.nav-item:hover { background: var(--bg-600); color: var(--text-100); }
.nav-item.active {
  background: linear-gradient(90deg, rgba(201,168,76,0.15), transparent);
  color: var(--gold);
  border-left: 2px solid var(--gold);
}
.nav-item .nav-icon {
  width: 36px; height: 36px; min-width: 36px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 8px;
  font-size: 1rem;
}

/* ── Dropzone ────────────────────────────────────────────── */
#dropzone {
  border: 2px dashed var(--border);
  border-radius: 16px;
  padding: 3rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: all var(--t-normal);
  background: var(--bg-700);
  position: relative;
}
#dropzone.drag-over {
  border-color: var(--gold);
  background: rgba(201,168,76,0.05);
  box-shadow: 0 0 30px var(--gold-glow);
}
#dropzone input[type="file"] {
  position: absolute; inset: 0; opacity: 0; cursor: pointer;
}

/* Progress Bar */
.progress-bar-track {
  width: 100%; background: var(--bg-600); border-radius: 99px;
  height: 6px; overflow: hidden;
}
.progress-bar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--gold), #e8c96a);
  border-radius: 99px;
  width: 0%;
  transition: width 0.2s ease;
  box-shadow: 0 0 10px var(--gold-glow);
}

/* ── Table ───────────────────────────────────────────────── */
.premium-table { width: 100%; border-collapse: collapse; font-size: 0.875rem; }
.premium-table thead th {
  text-align: left;
  padding: 0.75rem 1rem;
  color: var(--text-500);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  border-bottom: 1px solid var(--border);
}
.premium-table tbody tr {
  border-bottom: 1px solid rgba(255,255,255,0.03);
  transition: background var(--t-fast);
}
.premium-table tbody tr:hover { background: rgba(255,255,255,0.025); }
.premium-table tbody td { padding: 0.85rem 1rem; color: var(--text-100); }

/* Status Badges */
.badge {
  display: inline-flex; align-items: center; gap: 0.3rem;
  padding: 0.2rem 0.65rem;
  border-radius: 99px;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.badge-success { background: rgba(34,197,94,0.12);  color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.12); color: var(--warning); }
.badge-error   { background: rgba(239,68,68,0.12);  color: var(--error); }
.badge-info    { background: rgba(79,142,247,0.12); color: var(--blue); }

/* ── Tabs ────────────────────────────────────────────────── */
.tab-btn {
  padding: 0.55rem 1.2rem;
  font-size: 0.875rem;
  font-weight: 500;
  font-family: var(--font);
  color: var(--text-300);
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all var(--t-fast);
  white-space: nowrap;
}
.tab-btn:hover { color: var(--text-100); }
.tab-btn.active { color: var(--gold); border-bottom-color: var(--gold); }

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

/* ── Alerts ──────────────────────────────────────────────── */
.alert {
  padding: 0.75rem 1rem;
  border-radius: 8px;
  font-size: 0.875rem;
  display: flex; align-items: center; gap: 0.5rem;
}
.alert-success { background: rgba(34,197,94,0.1);  border: 1px solid rgba(34,197,94,0.3);  color: var(--success); }
.alert-error   { background: rgba(239,68,68,0.1);  border: 1px solid rgba(239,68,68,0.3);  color: var(--error); }

/* ── Animations ──────────────────────────────────────────── */
@keyframes fadeInUp {
  from { opacity:0; transform:translateY(16px); }
  to   { opacity:1; transform:translateY(0); }
}
.animate-in { animation: fadeInUp 0.4s ease both; }

@keyframes pulse-gold {
  0%,100% { box-shadow: 0 0 0 0 var(--gold-glow); }
  50%      { box-shadow: 0 0 0 8px transparent; }
}
.pulse-gold { animation: pulse-gold 2s ease infinite; }

@keyframes spin {
  to { transform: rotate(360deg); }
}
.spin { animation: spin 1s linear infinite; display: inline-block; }

/* ── Utility ─────────────────────────────────────────────── */
.section-title {
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--text-500);
  padding: 0.5rem 1.5rem;
  margin-top: 0.5rem;
}
.divider { height: 1px; background: var(--border); margin: 0.5rem 0; }
.text-gold { color: var(--gold); }
.text-muted { color: var(--text-300); }
.text-xs { font-size: 0.75rem; }
.text-sm { font-size: 0.875rem; }
.rounded-full { border-radius: 9999px; }
.sr-only { position:absolute; width:1px; height:1px; overflow:hidden; clip:rect(0,0,0,0); }

/* ── Login Page ──────────────────────────────────────────── */
.login-container {
  min-height: 100vh;
  display: grid;
  place-items: center;
  background:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(201,168,76,0.12), transparent),
    var(--bg-900);
  padding: 1.5rem;
}
.login-card {
  width: 100%; max-width: 420px;
  background: var(--bg-800);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2.5rem;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
}

/* ── Main Layout ─────────────────────────────────────────── */
#main-content {
  margin-left: 240px;
  min-height: 100vh;
  background: var(--bg-900);
  transition: margin-left var(--t-normal);
}
#main-content.collapsed { margin-left: 68px; }

.topbar {
  background: var(--bg-800);
  border-bottom: 1px solid var(--border);
  padding: 0.85rem 2rem;
  display: flex; align-items: center; justify-content: space-between;
  position: sticky; top: 0; z-index: 30;
}
.page-content { padding: 2rem; max-width: 1280px; }

/* ── Responsive ──────────────────────────────────────────── */
@media (max-width: 768px) {
  #sidebar { transform: translateX(-100%); width: 240px !important; }
  #sidebar.mobile-open { transform: translateX(0); }
  #main-content, #main-content.collapsed { margin-left: 0; }
}