/* Página de login (login.html) e botão "Sair" (sidebar e menu mobile). Usa os tokens de design-system.css.
   Sem script nem estilo inline: compatível com a CSP planejada. O tema segue a preferência do sistema. */

.auth-body {
  box-sizing: border-box;
  min-height: 100vh;
  margin: 0;
  display: grid;
  place-items: center;
  padding: 24px 16px;
  background:
    radial-gradient(900px 500px at 15% -10%, rgba(139, 92, 246, 0.28), transparent 60%),
    radial-gradient(700px 480px at 100% 110%, rgba(217, 70, 239, 0.16), transparent 60%),
    var(--bg, #070a13);
  color: var(--ink, #f8fafc);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  letter-spacing: 0;
}

.auth-card {
  width: min(420px, 100%);
  box-sizing: border-box;
  padding: 32px 28px 28px;
  border: 1px solid var(--card-border, rgba(139, 92, 246, 0.2));
  border-radius: var(--radius, 18px);
  background: linear-gradient(180deg, var(--card-1, rgba(13, 16, 32, 0.96)), var(--card-2, rgba(7, 10, 19, 0.97)));
  box-shadow: var(--shadow-card, 0 18px 46px rgba(0, 0, 0, 0.22));
}

.auth-brand {
  margin: 0;
  font-size: 30px;
  font-weight: 800;
  line-height: 1.1;
  background: linear-gradient(90deg, var(--primary, #8b5cf6), var(--magenta, #d946ef));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.auth-tagline {
  margin: 6px 0 22px;
  color: var(--muted, #94a3b8);
  font-size: 14px;
}

.auth-stack {
  display: grid;
}

/* Troca de formulário (login.js): os dois ficam na mesma célula da grade.
   - align-self: start: cada formulário mantém a própria altura. Sem isso o mais baixo era esticado até a altura do
     mais alto durante a troca, os campos se espaçavam e "pulavam" de volta quando o outro sumia.
   - Crossfade simultâneo: o que sai só esmaece, parado (não disputa atenção com o que entra); o que entra aparece
     com curva de desaceleração e uma subida curta. A soma dos dois nunca deixa o cartão vazio (sem "pisque").
     A altura do cartão acompanha na mesma curva. */
.auth-form {
  display: grid;
  gap: 14px;
  transition: opacity 240ms cubic-bezier(0.2, 0, 0, 1), transform 280ms cubic-bezier(0.2, 0, 0, 1);
}

.auth-stack > .auth-form {
  grid-area: 1 / 1;
  align-self: start;
}

.auth-form.is-leaving {
  opacity: 0;
  pointer-events: none;
  transition: opacity 180ms ease;
}

.auth-form.is-entering {
  opacity: 0;
  transform: translateY(4px);
  transition: none;
}

.auth-form[hidden],
.auth-message[hidden] {
  display: none;
}

.auth-card {
  overflow: hidden;
  transition: height 280ms cubic-bezier(0.2, 0, 0, 1);
}

.auth-message:not([hidden]) {
  animation: auth-message-in 200ms ease both;
}

@keyframes auth-message-in {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

@media (prefers-reduced-motion: reduce) {
  .auth-form,
  .auth-card { transition: none; }
  .auth-form.is-leaving { transition: none; }
  .auth-message:not([hidden]) { animation: none; }
}

.auth-form h2 {
  margin: 0 0 2px;
  font-size: 19px;
  font-weight: 650;
}

.auth-help {
  margin: 0;
  color: var(--muted, #94a3b8);
  font-size: 14px;
  line-height: 1.4;
}

.auth-form label {
  display: grid;
  gap: 6px;
  color: var(--text-secondary, #cbd5e1);
  font-size: 13px;
  font-weight: 600;
}

.auth-form label small {
  color: var(--text-muted, #64748b);
  font-weight: 500;
}

.auth-form input {
  box-sizing: border-box;
  width: 100%;
  height: 42px;
  padding: 0 12px;
  border: 1px solid var(--card-border, rgba(139, 92, 246, 0.2));
  border-radius: var(--radius-md, 8px);
  background: var(--surface-soft, rgba(7, 10, 19, 0.5));
  color: var(--ink, #f8fafc);
  font: inherit;
  font-size: 15px;
}

.auth-form input:focus-visible,
.auth-primary:focus-visible,
.auth-link:focus-visible,
.logout-btn:focus-visible {
  outline: 2px solid rgba(139, 92, 246, 0.7);
  outline-offset: 2px;
}

.auth-primary {
  height: 44px;
  border: 0;
  border-radius: var(--radius-md, 8px);
  background: linear-gradient(90deg, #7c3aed, #6d28d9);
  color: #fff;
  font: inherit;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
}

.auth-primary:disabled {
  opacity: 0.6;
  cursor: progress;
}

.auth-links {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
}

.auth-link {
  padding: 4px 0;
  border: 0;
  background: none;
  color: var(--primary, #8b5cf6);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

.auth-message {
  margin: 0 0 16px;
  padding: 10px 12px;
  border-radius: var(--radius-md, 8px);
  font-size: 14px;
  line-height: 1.4;
  border: 1px solid rgba(244, 63, 94, 0.4);
  background: rgba(244, 63, 94, 0.1);
  color: #fecdd3;
}

.auth-message[data-kind="info"] {
  border-color: rgba(34, 197, 94, 0.4);
  background: rgba(34, 197, 94, 0.1);
  color: #bbf7d0;
}

/* Botão "Sair": na barra superior (desktop, ao lado do interruptor de tema) e no menu lateral mobile. */
.topbar-logout {
  position: relative;
  z-index: 8;
  align-self: flex-start;
  flex: 0 0 auto;
  order: 1;
  height: 34px;
  margin-left: 10px;
  padding: 0 14px;
  border: 1px solid var(--card-border, rgba(139, 92, 246, 0.2));
  border-radius: 999px;
  background: rgba(16, 14, 38, 0.72);
  color: var(--muted, #94a3b8);
  font: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
}

/* O interruptor de tema é criado por JS no fim de .topbar; com order: 1 o "Sair" fica à direita dele. O interruptor
   assume o espaço livre à esquerda (margin-left: auto) para os dois ficarem juntos na borda direita. */
.topbar > .theme-toggle {
  margin-left: auto;
}

.topbar-logout:hover {
  border-color: rgba(139, 92, 246, 0.3);
  color: var(--ink, #f8fafc);
}

.topbar-logout:focus-visible {
  outline: 2px solid rgba(139, 92, 246, 0.6);
  outline-offset: 2px;
}

@media (max-width: 900px) {
  .topbar-logout { display: none; }
}

.logout-area {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.logout-email {
  overflow: hidden;
  color: var(--muted, #94a3b8);
  font-size: 12px;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.logout-email:empty {
  display: none;
}

.logout-btn {
  height: 38px;
  width: 100%;
  border: 1px solid var(--card-border, rgba(139, 92, 246, 0.2));
  border-radius: var(--radius-md, 8px);
  background: transparent;
  color: var(--text-secondary, #cbd5e1);
  font: inherit;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
}

.logout-btn:hover {
  border-color: rgba(139, 92, 246, 0.5);
  color: var(--ink, #f8fafc);
}

.mobile-drawer .logout-area {
  margin: 16px 20px 24px;
}

@media (prefers-color-scheme: light) {
  .auth-body {
    background:
      radial-gradient(900px 500px at 15% -10%, rgba(139, 92, 246, 0.16), transparent 60%),
      radial-gradient(700px 480px at 100% 110%, rgba(217, 70, 239, 0.1), transparent 60%),
      #f6f3fd;
    color: #1e1b2e;
  }
  .auth-card {
    background: #fff;
    border-color: rgba(139, 92, 246, 0.22);
    box-shadow: 0 18px 46px rgba(66, 48, 96, 0.12);
  }
  .auth-tagline,
  .auth-help,
  .auth-form label small { color: #6b6480; }
  .auth-form label { color: #3b3550; }
  .auth-form input { background: #faf8ff; color: #1e1b2e; border-color: rgba(139, 92, 246, 0.28); }
  .auth-message { color: #9f1239; background: rgba(244, 63, 94, 0.08); }
  .auth-message[data-kind="info"] { color: #166534; background: rgba(34, 197, 94, 0.1); }
}

html[data-theme="light"] .topbar-logout { background: rgba(255, 255, 255, 0.86); color: #756d86; box-shadow: 0 4px 14px rgba(66, 48, 96, 0.05); }
html[data-theme="light"] .topbar-logout:hover { color: #1e1b2e; }
html[data-theme="light"] .logout-btn { color: #4b4560; }
html[data-theme="light"] .logout-btn:hover { color: #1e1b2e; }
html[data-theme="light"] .logout-email { color: #6b6480; }