/* ========================================
   ESTILOS GLOBAIS - BASE
   ======================================== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: #777;
  padding: 50px;
  margin: 0;
  font-family: 'Segoe UI', sans-serif;
  background: #2f3a44;
  display: flex;
  justify-content: center;
  align-items: center;
  height: 100vh;
  color: white;
}

/* ========================================
   COMPONENTES GLOBAIS - CONTAINER
   ======================================== */
.container {
  display: flex;
  gap: 40px;
}

.auth-shell {
  width: 100%;
  justify-content: center;
}

/* ========================================
   COMPONENTES GLOBAIS - CARDS
   ======================================== */
.card {
  width: 180px;
  height: 180px;
  border-radius: 20px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  cursor: pointer;
  transition: 0.3s ease;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.4);
  margin: 38px;
}

.card i {
  font-size: 50px;
  margin-bottom: 15px;
}

.card span {
  font-size: 18px;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 15px 30px rgba(0, 0, 0, 0.6);
}

/* Cards por tipo */
.diagnostic { background: linear-gradient(135deg, #ff6a00, #ff2d00); }
.service { background: linear-gradient(135deg, #ffc400, #ff9800); }
.settings { background: linear-gradient(135deg, #9e9e9e, #616161); }
.update { background: linear-gradient(135deg, #00c853, #009624); }

.auth-card {
  width: 360px;
  height: auto;
  min-height: 320px;
  padding: 28px;
  background: linear-gradient(135deg, #2b3640, #1e272f);
}

.auth-form {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-top: 18px;
}

.auth-form input,
.auth-form button {
  width: 100%;
  border: 0;
  border-radius: 12px;
  padding: 14px 16px;
  font-size: 15px;
}

.auth-form input {
  background: rgba(255, 255, 255, 0.92);
  color: #15202b;
}

.auth-button {
  background: linear-gradient(135deg, #ff6a00, #ff2d00);
  color: #fff;
  cursor: pointer;
  font-weight: 700;
}

.auth-message {
  margin-top: 14px;
  min-height: 22px;
  font-size: 14px;
  text-align: center;
}

.action-bar {
  position: fixed;
  left: 50%;
  bottom: 32px;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.action-button {
  border: 0;
  border-radius: 12px;
  padding: 14px 22px;
  font-size: 15px;
  font-weight: 700;
  color: #fff;
  cursor: pointer;
  background: linear-gradient(135deg, #ff6a00, #ff2d00);
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.35);
}

.action-message {
  min-height: 20px;
  font-size: 14px;
  color: #ffffff;
  text-align: center;
}

/* ========================================
   COMPONENTES GLOBAIS - BARRA SUPERIOR
   ======================================== */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: linear-gradient(to right, #f8f8f8, #e0e0e0);
  box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
  padding: 0;
}

.bottom-line {
  height: 6px;
  background: #007acc;
  margin-top: -1px;
}