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

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: var(--leading-normal);
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  text-decoration: underline;
}

img, svg {
  display: block;
  max-width: 100%;
}

input, textarea, select, button {
  font-family: inherit;
  font-size: inherit;
}

ul, ol {
  list-style: none;
}

h1 { font-size: var(--text-3xl); font-weight: var(--font-bold); line-height: var(--leading-tight); }
h2 { font-size: var(--text-2xl); font-weight: var(--font-semibold); line-height: var(--leading-tight); }
h3 { font-size: var(--text-xl); font-weight: var(--font-semibold); }
h4 { font-size: var(--text-lg); font-weight: var(--font-medium); }

/* Layout principal */
#app {
  display: flex;
  min-height: 100vh;
}

.layout {
  display: flex;
  width: 100%;
  min-height: 100vh;
}

.layout__sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background-color: var(--color-bg-sidebar);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0;
  left: 0;
  height: 100vh;
  z-index: 100;
}

.layout__main {
  margin-left: var(--sidebar-width);
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

.layout__topbar {
  height: var(--topbar-height);
  background-color: var(--color-bg-card);
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  padding: 0 var(--space-6);
  position: sticky;
  top: 0;
  z-index: 50;
}

.layout__content {
  flex: 1;
  padding: var(--space-8) var(--space-6);
  max-width: var(--content-max);
  width: 100%;
}

/* Utilidades gerais */
.text-muted { color: var(--color-text-muted); }
.text-sm { font-size: var(--text-sm); }
.text-xs { font-size: var(--text-xs); }
.font-medium { font-weight: var(--font-medium); }
.font-semibold { font-weight: var(--font-semibold); }

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-2 { gap: var(--space-2); }
.gap-4 { gap: var(--space-4); }
.gap-6 { gap: var(--space-6); }

.mt-2 { margin-top: var(--space-2); }
.mt-4 { margin-top: var(--space-4); }
.mt-6 { margin-top: var(--space-6); }
.mb-4 { margin-bottom: var(--space-4); }
.mb-6 { margin-bottom: var(--space-6); }

/* Estados de loading */
.skeleton {
  background: linear-gradient(90deg, var(--color-border) 25%, var(--color-bg-input) 50%, var(--color-border) 75%);
  background-size: 200% 100%;
  animation: skeleton-loading 1.4s infinite;
  border-radius: var(--radius-sm);
}

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

/* Tela de login */
.auth-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-bg);
}

/* Spinner */
.spinner {
  width: 20px;
  height: 20px;
  border: 2px solid var(--color-primary-light);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

/* Toasts / alertas inline */
.alert {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  font-size: var(--text-sm);
  display: flex;
  align-items: flex-start;
  gap: var(--space-2);
}

.alert--error {
  background-color: var(--color-danger-light);
  color: #b91c1c;
}

.alert--success {
  background-color: var(--color-success-light);
  color: #065f46;
}

.alert--warning {
  background-color: var(--color-warning-light);
  color: #92400e;
}

/* Responsividade básica */
@media (max-width: 768px) {
  .layout__sidebar {
    transform: translateX(-100%);
    transition: transform var(--transition-slow);
  }

  .layout__sidebar.is-open {
    transform: translateX(0);
  }

  .layout__main {
    margin-left: 0;
  }
}