/* ─────────────────────────────────────────────────────────────────────────────
   LV JIU JITSU — Login — Card centralizado
   ───────────────────────────────────────────────────────────────────────────── */

/* ─── Tokens — tema claro ──────────────────────────────────────────────────── */
:root {
  --bg: #f5f5f5;
  --card-bg: #ffffff;
  --card-border: rgba(196, 18, 48, 0.15);
  --card-shadow: 0 4px 24px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.06);
  --border: #e4e4e7;
  --input-bg: #fafafa;
  --text: #18181b;
  --muted: #71717a;
  --brand-red: #c41230;
  --brand-red-strong: #9b0e25;
  --brand-red-muted: rgba(196, 18, 48, 0.1);
  --focus-ring: rgba(196, 18, 48, 0.3);
  --danger: #dc2626;
  --danger-muted: rgba(220, 38, 38, 0.08);
  --success: #16a34a;
  --info: #2563eb;
  --toggle-bg: #ffffff;
  --toggle-border: #e4e4e7;
  --toggle-color: #71717a;
}

/* ─── Tokens — tema escuro ─────────────────────────────────────────────────── */
html[data-theme="dark"] {
  --bg: #09090b;
  --card-bg: #111113;
  --card-border: rgba(196, 18, 48, 0.25);
  --card-shadow: 0 4px 32px rgba(0, 0, 0, 0.6), 0 1px 6px rgba(0, 0, 0, 0.4);
  --border: #2d2d30;
  --input-bg: #18181b;
  --text: #fafafa;
  --muted: #a1a1aa;
  --brand-red: #e02244;
  --brand-red-strong: #c41230;
  --brand-red-muted: rgba(224, 34, 68, 0.12);
  --focus-ring: rgba(224, 34, 68, 0.35);
  --danger: #f87171;
  --danger-muted: rgba(248, 113, 113, 0.1);
  --success: #4ade80;
  --info: #60a5fa;
  --toggle-bg: #18181b;
  --toggle-border: #3f3f46;
  --toggle-color: #a1a1aa;
}

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

html {
  color-scheme: light;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}
html[data-theme="dark"] { color-scheme: dark; }

a { color: var(--brand-red); text-decoration: none; }
a:hover { color: var(--brand-red-strong); text-decoration: underline; }

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

/* ─── Fundo da página ──────────────────────────────────────────────────────── */

body.login-page {
  min-height: 100dvh;
  background-color: var(--bg);
  color: var(--text);
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  line-height: 1.5;
  /* Toque vermelho sutil no canto inferior — tema claro */
  background-image:
    radial-gradient(ellipse 60% 50% at 110% 110%, rgba(196, 18, 48, 0.07) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at -10% -10%, rgba(196, 18, 48, 0.04) 0%, transparent 60%);
}

/* Escuro: gradiente vermelho mais marcado */
html[data-theme="dark"] body.login-page {
  background-image:
    radial-gradient(ellipse 70% 55% at 100% 100%, rgba(196, 18, 48, 0.22) 0%, transparent 65%),
    radial-gradient(ellipse 50% 45% at 0% 0%, rgba(196, 18, 48, 0.1) 0%, transparent 60%);
}

/* ─── Botão de tema ────────────────────────────────────────────────────────── */

.theme-toggle {
  position: fixed;
  top: 1rem;
  right: 1rem;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--toggle-border);
  border-radius: 50%;
  background: var(--toggle-bg);
  color: var(--toggle-color);
  cursor: pointer;
  box-shadow: 0 1px 3px rgba(0,0,0,0.08);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}
.theme-toggle:hover { color: var(--text); }
.theme-toggle:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

.theme-toggle__icon { position: absolute; transition: opacity 0.2s, transform 0.2s; }
.theme-toggle__icon--sun  { opacity: 1; transform: scale(1); }
.theme-toggle__icon--moon { opacity: 0; transform: scale(0.6); }
html[data-theme="dark"] .theme-toggle__icon--sun  { opacity: 0; transform: scale(0.6); }
html[data-theme="dark"] .theme-toggle__icon--moon { opacity: 1; transform: scale(1); }

/* ─── Layout centralizado ──────────────────────────────────────────────────── */

.login-page__main {
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1.5rem 1.25rem;
}

/* ─── Card ─────────────────────────────────────────────────────────────────── */

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  border-radius: 1rem;
  box-shadow: var(--card-shadow);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  /* Toque de borda vermelha no topo */
  border-top: 3px solid var(--brand-red);
  transition: background 0.2s, border-color 0.2s, box-shadow 0.2s;
}

/* ─── Header do card ───────────────────────────────────────────────────────── */

.login-card__header {
  display: flex;
  justify-content: center;
}

/* Logo: preto no claro, branco no escuro */
.login-card__logo {
  width: 200px;
  filter: none;
  transition: filter 0.2s;
}
html[data-theme="dark"] .login-card__logo {
  filter: invert(1);
}

/* ─── Mensagens Django ─────────────────────────────────────────────────────── */

.login-messages { display: flex; flex-direction: column; gap: 0.5rem; }

.login-message {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  font-size: 0.875rem;
  line-height: 1.4;
  border: 1px solid var(--border);
  color: var(--text);
}
.login-message--info,
.login-message--debug  { background: rgba(37,99,235,0.07); border-color: rgba(37,99,235,0.25); color: var(--info); }
.login-message--success { background: rgba(22,163,74,0.07); border-color: rgba(22,163,74,0.25); color: var(--success); }
.login-message--warning,
.login-message--error   { background: var(--danger-muted); border-color: rgba(220,38,38,0.25); color: var(--danger); }

/* ─── Formulário ───────────────────────────────────────────────────────────── */

.login-form { display: flex; flex-direction: column; gap: 1.25rem; }

/* Erros não-campo */
.form-errors-global {
  padding: 0.875rem 1rem;
  border-radius: 0.5rem;
  background: var(--danger-muted);
  border: 1px solid rgba(220, 38, 38, 0.25);
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}
.form-errors-global__item { font-size: 0.875rem; color: var(--danger); line-height: 1.4; }

/* Grupo de campo */
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }

.form-label { font-size: 0.8125rem; font-weight: 600; color: var(--muted); letter-spacing: 0.03em; text-transform: uppercase; }

/* Inputs Django */
.form-group input[type="text"],
.form-group input[type="password"] {
  width: 100%;
  height: 46px;
  padding: 0 0.875rem;
  background: var(--input-bg);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  color: var(--text);
  font-size: 0.9375rem;
  font-family: inherit;
  transition: border-color 0.15s, box-shadow 0.15s, background 0.2s;
  -webkit-appearance: none;
  appearance: none;
}
.form-group input::placeholder { color: var(--muted); opacity: 0.7; }
.form-group input:focus {
  outline: none;
  border-color: var(--brand-red);
  box-shadow: 0 0 0 3px var(--focus-ring);
  background: var(--card-bg);
}

/* Wrapper senha + toggle */
.form-input-wrapper { position: relative; display: flex; align-items: center; }
.form-input-wrapper input { padding-right: 3rem; }

.password-toggle {
  position: absolute;
  right: 0; top: 0; bottom: 0;
  width: 46px;
  display: flex; align-items: center; justify-content: center;
  background: none; border: none;
  color: var(--muted);
  cursor: pointer;
  border-radius: 0 0.5rem 0.5rem 0;
  transition: color 0.15s;
}
.password-toggle:hover { color: var(--text); }
.password-toggle:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: -2px; }

.password-toggle__icon { position: absolute; transition: opacity 0.15s; }
.password-toggle__icon--hide { opacity: 0; }
.password-toggle[aria-label="Ocultar senha"] .password-toggle__icon--show { opacity: 0; }
.password-toggle[aria-label="Ocultar senha"] .password-toggle__icon--hide  { opacity: 1; }

/* Erro de campo */
.form-field-error { font-size: 0.8125rem; color: var(--danger); line-height: 1.3; }

/* ─── Botão submit ─────────────────────────────────────────────────────────── */

.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 46px;
  background: var(--brand-red);
  color: #ffffff;
  border: none;
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 700;
  font-family: inherit;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: background 0.15s, transform 0.1s;
  margin-top: 0.25rem;
}
.btn-submit:hover  { background: var(--brand-red-strong); }
.btn-submit:active { transform: translateY(1px); }
.btn-submit:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px var(--brand-red-muted);
}

/* ─── Divisor "ou" ────────────────────────────────────────────────────────── */

.login-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.8125rem;
}
.login-divider::before,
.login-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* ─── Botão criar conta ────────────────────────────────────────────────────── */

.btn-register {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 46px;
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  font-size: 0.9375rem;
  font-weight: 600;
  font-family: inherit;
  text-decoration: none;
  cursor: pointer;
  transition: background 0.15s, border-color 0.15s, color 0.15s;
}
.btn-register:hover {
  border-color: var(--brand-red);
  color: var(--brand-red);
  text-decoration: none;
}
.btn-register:focus-visible {
  outline: 2px solid var(--focus-ring);
  outline-offset: 2px;
}

/* ─── Link recuperação de senha ────────────────────────────────────────────── */

.login-forgot-link {
  display: block;
  text-align: center;
  font-size: 0.875rem;
  color: var(--muted);
  transition: color 0.15s;
}
.login-forgot-link:hover { color: var(--brand-red); text-decoration: none; }
.login-forgot-link:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; border-radius: 2px; }

/* ─── Desktop ──────────────────────────────────────────────────────────────── */

@media (min-width: 768px) {
  .login-card {
    padding: 3rem 2.75rem;
  }

  .login-card__logo {
    width: 220px;
  }
}

/* ─── Prefers-reduced-motion ───────────────────────────────────────────────── */

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}