/* ======================================
   LOGIN — BASE + DESKTOP
   Inspired by chat.css
====================================== */

:root {
  --bg: #020617;
  --card: #0f172a;
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --text: #e5e7eb;
  --muted: #94a3b8;
  --border: rgba(255,255,255,0.08);
  --shadow: 0 25px 60px rgba(0,0,0,0.45);
}

/* ===== RESET ===== */

* {
  box-sizing: border-box;
}

/* ===== FUNDO GERAL ===== */

body {
  margin: 0;
  min-height: 100vh;

  background:
    radial-gradient(circle at top, #020617 0%, #000 65%);

  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI",
    Roboto, Helvetica, Arial, sans-serif;

  color: var(--text);

  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== CARD LOGIN ===== */

.login-box {
  width: 100%;
  max-width: 420px;

  padding: 30px 28px 32px;

  background: linear-gradient(
    180deg,
    #020617,
    var(--card)
  );

  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);

  display: flex;
  flex-direction: column;
  gap: 18px;
}

/* ===== TÍTULO ===== */

.login-box h2 {
  margin: 0 0 8px;
  text-align: center;

  font-size: 24px;
  font-weight: 600;
  letter-spacing: 0.4px;
}

/* ===== INPUT ===== */

.login-box input {
  width: 100%;
  padding: 14px 16px;

  font-size: 15px;
  border-radius: 14px;

  border: 1px solid var(--border);
  background: rgba(255,255,255,0.06);

  color: var(--text);
  outline: none;

  transition: border-color 0.2s ease, background 0.2s ease;
}

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

.login-box input:focus {
  border-color: var(--primary);
  background: rgba(255,255,255,0.08);
}

/* ===== BOTÃO ===== */

.login-box button {
  margin-top: 6px;

  padding: 14px;
  border-radius: 14px;

  border: none;
  cursor: pointer;

  background: var(--primary);
  color: #fff;

  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.4px;

  transition:
    background 0.2s ease,
    transform 0.12s ease,
    box-shadow 0.12s ease;
}

.login-box button:hover {
  background: var(--primary-hover);
  box-shadow: 0 8px 20px rgba(37,99,235,0.35);
}

.login-box button:active {
  transform: scale(0.97);
}

/* ===== ERRO ===== */

#erro {
  min-height: 18px;
  text-align: center;
  font-size: 14px;
  color: #f87171;
}

/* ======================================
   DESKTOP LARGE (opcional)
====================================== */

@media (min-width: 1024px) {
  .login-box {
    max-width: 460px;
    padding: 34px 32px 36px;
  }

  .login-box h2 {
    font-size: 26px;
  }
}