:root {
  --roxo: #5b22b2;
  --roxo-card: #4b2b77;
  --branco: #ffffff;
}

/* =========================
   RESET
========================= */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Poppins", sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(135deg, #6a2bc5 0%, #140022 100%);
  color: #fff;

  display: flex;
  flex-direction: column;
}

/* =========================
   NAVBAR (injetada via JS)
========================= */
#navbar .navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;

  padding: 0 60px;
  display: flex;
  justify-content: space-between;
  align-items: center;

  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);
  z-index: 10;
}

#navbar .logo {
  font-size: 22px;
  font-weight: 700;
  color: var(--roxo);
}

#navbar nav {
  display: flex;
  align-items: center;
  gap: 28px;
}

#navbar nav a {
  text-decoration: none;
  color: #ffffff;
  font-weight: 500;
  transition: 0.3s;
}

#navbar nav a:hover {
  color: var(--roxo);
}

#navbar .btn-login {
  padding: 8px 18px;
  border: 2px solid var(--roxo);
  border-radius: 20px;
}

/* =========================
   MAIN (CENTRALIZA O FORM)
========================= */
main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding-top: 120px; /* espaço da navbar */
  padding-bottom: 40px;
}

/* =========================
   FORM CONTAINER
========================= */
.form-container {
  background: var(--roxo-card);
  width: 100%;
  max-width: 360px;

  padding: 42px 38px;
  border-radius: 18px;

  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
}

/* =========================
   TITULO
========================= */
.form-container h2 {
  text-align: center;
  margin-bottom: 28px;
  font-size: 22px;
  font-weight: 600;
}

/* =========================
   LABEL
========================= */
.form-container label {
  font-size: 13px;
  margin-bottom: 6px;
  display: block;
  opacity: 0.9;
}

/* =========================
   INPUTS
========================= */
.form-container input {
  width: 100%;
  padding: 14px 16px;
  margin-bottom: 18px;

  border-radius: 10px;
  border: none;
  outline: none;

  font-size: 14px;
}

/* =========================
   BOTÃO PRINCIPAL
========================= */
.form-container button {
  width: 100%;
  padding: 14px;

  background: linear-gradient(135deg, #ffffff, #e6dcff);
  color: var(--roxo);

  font-weight: 600;
  font-size: 15px;

  border: none;
  border-radius: 12px;
  cursor: pointer;

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

.form-container button:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

/* =========================
   LINK "SE CADASTRAR"
========================= */
.form-container a {
  display: block;
  margin-top: 18px;
  text-align: center;

  font-size: 13px;
  font-weight: 500;

  color: #ffffff;
  opacity: 0.9;
  text-decoration: none;
}

.form-container a:hover {
  opacity: 1;
  text-decoration: underline;
}

/* =========================
   MENSAGEM
========================= */
#msg {
  margin-top: 14px;
  font-size: 13px;
  text-align: center;
  opacity: 0.85;
}

/* =========================
   FOOTER
========================= */
footer {
  height: 72px;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(8px);

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

  font-size: 0.85rem;
  opacity: 0.85;
}

/* ========================================================
                    TABLET
======================================================== */
@media (max-width: 1024px) {
  #navbar .navbar {
    padding: 0 32px;
  }

  .form-container {
    max-width: 340px;
    padding: 38px 34px;
  }
}

/* ========================================================
                     MOBILE
======================================================== */
@media (max-width: 768px) {
  #navbar .navbar {
    height: 64px;
    padding: 0 20px;
  }

  #navbar .logo {
    font-size: 18px;
    white-space: nowrap;
  }

  #navbar nav {
    gap: 14px;
  }

  #navbar nav a {
    font-size: 14px;
  }

  #navbar .btn-login {
    padding: 6px 14px;
    font-size: 13px;
  }

  main {
    padding-top: 100px;
  }

  .form-container {
    max-width: 340px;
    padding: 34px 28px;
  }

  .form-container h2 {
    font-size: 20px;
  }
}

/* ========================================================
                  MOBILE SMALL
======================================================== */
@media (max-width: 480px) {
  #navbar .navbar {
    padding: 0 16px;
  }

  #navbar .logo {
    font-size: 16px;
    max-width: 60%;
    overflow: hidden;
    text-overflow: ellipsis;
  }

  #navbar nav {
    gap: 10px;
  }

  #navbar nav a {
    font-size: 13px;
  }

  #navbar .btn-login {
    padding: 6px 12px;
    font-size: 12px;
  }

  .form-container {
    max-width: 92%;
    padding: 30px 22px;
  }

  footer {
    font-size: 0.8rem;
  }
}