/* ─── Delta Pro Design Tokens ─────────────────────────────────────── */
:root {
  /* Brand Colors */
  --azul-delta: #4A9FD4;
  --azul-delta-light: #6FB8E8;
  --azul-delta-dark: #2E7BAF;
  --navy-delta: #1B2A4A;
  --navy-delta-light: #243660;
  --navy-delta-dark: #111C30;
  --cinza-delta: #6B7280;
  --cinza-delta-light: #9CA3AF;
  --preto-delta: #0D1117;

  /* Surfaces */
  --surface-bg: #0D1117;
  --surface-card: #161B22;
  --surface-card2: #1C2333;
  --surface-hover: #21262D;
  --surface-border: #30363D;
  --surface-border-light: rgba(255,255,255,0.08);

  /* Text */
  --text-primary: #F0F6FC;
  --text-secondary: #8B949E;
  --text-muted: #484F58;
  --text-accent: var(--azul-delta);

  /* Status Colors */
  --color-waiting: #F0A730;
  --color-active: #3FB950;
  --color-closed: #6B7280;
  --color-danger: #F85149;

  /* Shadows & Effects */
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.4);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.5);
  --shadow-lg: 0 8px 32px rgba(0,0,0,0.6);
  --shadow-glow: 0 0 20px rgba(74,159,212,0.15);

  /* Glassmorphism */
  --glass-bg: rgba(22, 27, 34, 0.8);
  --glass-border: rgba(255, 255, 255, 0.08);

  /* Spacing */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 16px;
  --radius-xl: 20px;
  --radius-full: 9999px;

  /* Typography */
  --font-sans: 'Inter', system-ui, -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', monospace;

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

  /* Z-index */
  --z-modal: 1000;
  --z-dropdown: 500;
  --z-overlay: 800;
  --z-tooltip: 700;
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--surface-bg);
  color: var(--text-primary);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-border); border-radius: 99px; }
::-webkit-scrollbar-thumb:hover { background: var(--cinza-delta); }

/* ─── Utility Classes ─────────────────────────────────────────────── */
.hidden { display: none !important; }
.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.gap-1 { gap: 4px; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }
.gap-4 { gap: 16px; }
.flex-1 { flex: 1; }
.w-full { width: 100%; }
.h-full { height: 100%; }
.text-sm { font-size: 0.875rem; }
.text-xs { font-size: 0.75rem; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }
.text-secondary { color: var(--text-secondary); }
.text-muted { color: var(--text-muted); }
.text-accent { color: var(--azul-delta); }
.text-danger { color: var(--color-danger); }
.truncate { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.overflow-hidden { overflow: hidden; }
.relative { position: relative; }
.absolute { position: absolute; }
.min-w-0 { min-width: 0; }

/* ─── Buttons ─────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border: none;
  border-radius: var(--radius-md);
  font-size: 0.875rem;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
  transition: all var(--transition-fast);
  outline: none;
  white-space: nowrap;
  text-decoration: none;
}

.btn:active { transform: scale(0.97); }

.btn-primary {
  background: linear-gradient(135deg, var(--azul-delta), var(--azul-delta-dark));
  color: #fff;
  box-shadow: 0 2px 8px rgba(74,159,212,0.3);
}
.btn-primary:hover {
  background: linear-gradient(135deg, var(--azul-delta-light), var(--azul-delta));
  box-shadow: 0 4px 16px rgba(74,159,212,0.4);
}

.btn-navy {
  background: var(--navy-delta);
  color: var(--azul-delta);
  border: 1px solid var(--navy-delta-light);
}
.btn-navy:hover { background: var(--navy-delta-light); }

.btn-ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--surface-border);
}
.btn-ghost:hover { background: var(--surface-hover); color: var(--text-primary); }

.btn-danger {
  background: rgba(248,81,73,0.15);
  color: var(--color-danger);
  border: 1px solid rgba(248,81,73,0.3);
}
.btn-danger:hover { background: rgba(248,81,73,0.25); }

.btn-success {
  background: rgba(63,185,80,0.15);
  color: var(--color-active);
  border: 1px solid rgba(63,185,80,0.3);
}
.btn-success:hover { background: rgba(63,185,80,0.25); }

.btn-sm { padding: 5px 10px; font-size: 0.8rem; }
.btn-icon { padding: 7px; }
.btn-full { width: 100%; justify-content: center; }

/* ─── Badges ─────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 2px 8px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.badge-waiting { background: rgba(240,167,48,0.15); color: var(--color-waiting); border: 1px solid rgba(240,167,48,0.3); }
.badge-active { background: rgba(63,185,80,0.15); color: var(--color-active); border: 1px solid rgba(63,185,80,0.3); }
.badge-closed { background: rgba(107,114,128,0.15); color: var(--color-closed); border: 1px solid rgba(107,114,128,0.3); }

.badge-count {
  background: var(--azul-delta);
  color: #fff;
  min-width: 20px;
  height: 20px;
  padding: 0 5px;
  border-radius: var(--radius-full);
  font-size: 0.7rem;
  font-weight: 700;
}

/* ─── Inputs ──────────────────────────────────────────────────────── */
.input {
  width: 100%;
  background: var(--surface-card2);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-size: 0.875rem;
  font-family: var(--font-sans);
  padding: 10px 14px;
  outline: none;
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.input:focus {
  border-color: var(--azul-delta);
  box-shadow: 0 0 0 3px rgba(74,159,212,0.15);
}

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

.input-group { display: flex; flex-direction: column; gap: 6px; }
.input-label { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); letter-spacing: 0.03em; }

/* Select */
.input select { appearance: none; }

/* ─── Cards ───────────────────────────────────────────────────────── */
.card {
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-lg);
  padding: 16px;
}

.card-hover {
  cursor: pointer;
  transition: all var(--transition-fast);
}
.card-hover:hover {
  background: var(--surface-card2);
  border-color: var(--azul-delta);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}
.card-hover.active {
  background: var(--navy-delta-dark);
  border-color: var(--azul-delta);
  box-shadow: var(--shadow-glow);
}

/* ─── Modal ───────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(4px);
  z-index: var(--z-overlay);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  animation: fadeIn var(--transition-fast) ease;
}

.modal {
  background: var(--surface-card);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-xl);
  padding: 24px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: slideUp var(--transition-normal) ease;
}

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

.modal-title { font-size: 1.1rem; font-weight: 700; color: var(--text-primary); }
.modal-close {
  background: none;
  border: none;
  color: var(--text-secondary);
  cursor: pointer;
  padding: 4px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast);
}
.modal-close:hover { color: var(--text-primary); }

.modal-body { display: flex; flex-direction: column; gap: 16px; }
.modal-footer { display: flex; gap: 8px; justify-content: flex-end; margin-top: 20px; }

/* ─── Toast ───────────────────────────────────────────────────────── */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: var(--z-modal);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.toast {
  background: var(--surface-card2);
  border: 1px solid var(--surface-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-primary);
  box-shadow: var(--shadow-lg);
  display: flex;
  align-items: center;
  gap: 10px;
  animation: slideUp var(--transition-normal) ease;
  max-width: 320px;
}

.toast.success { border-left: 3px solid var(--color-active); }
.toast.error { border-left: 3px solid var(--color-danger); }
.toast.info { border-left: 3px solid var(--azul-delta); }
.toast.warning { border-left: 3px solid var(--color-waiting); }

/* ─── Animations ─────────────────────────────────────────────────── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { opacity: 0; transform: translateX(-16px); }
  to { opacity: 1; transform: translateX(0); }
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.5; }
}

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

.animate-spin { animation: spin 1s linear infinite; }
.animate-pulse { animation: pulse 2s ease-in-out infinite; }

/* ─── Loading Skeleton ────────────────────────────────────────────── */
.skeleton {
  background: linear-gradient(90deg, var(--surface-card) 25%, var(--surface-card2) 50%, var(--surface-card) 75%);
  background-size: 200% 100%;
  animation: shimmer 1.5s infinite;
  border-radius: var(--radius-md);
}

@keyframes shimmer {
  0% { background-position: 200% 0; }
  100% { background-position: -200% 0; }
}

/* ─── Avatar ─────────────────────────────────────────────────────── */
.avatar {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--navy-delta), var(--azul-delta));
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 0.875rem;
  color: #fff;
  flex-shrink: 0;
}

.avatar-sm { width: 28px; height: 28px; font-size: 0.75rem; }
.avatar-lg { width: 48px; height: 48px; font-size: 1rem; }

/* ─── Divider ─────────────────────────────────────────────────────── */
.divider { height: 1px; background: var(--surface-border); margin: 8px 0; }

/* ─── Status Dot ─────────────────────────────────────────────────── */
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  flex-shrink: 0;
}
.status-dot.waiting { background: var(--color-waiting); box-shadow: 0 0 6px var(--color-waiting); }
.status-dot.active { background: var(--color-active); box-shadow: 0 0 6px var(--color-active); }
.status-dot.closed { background: var(--color-closed); }

/* ─── Empty State ────────────────────────────────────────────────── */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 48px 24px;
  text-align: center;
  color: var(--text-secondary);
}

.empty-state-icon { font-size: 3rem; opacity: 0.4; }
.empty-state-title { font-size: 1rem; font-weight: 600; color: var(--text-secondary); }
.empty-state-desc { font-size: 0.875rem; color: var(--text-muted); }