/* ---------- BASE ---------- */
body, html {
  min-height: 100vh;
  margin: 0;
  padding: 0;
  font-family: 'Orbitron', 'Segoe UI', Arial, sans-serif;
  background: linear-gradient(135deg, #0a060f 0%, #1c140a 100%);
  color: #ececec;
  display: flex;
  justify-content: center;
  align-items: center;
  transition: background 0.6s;
}

/* ---------- CONTAINER PRINCIPAL ---------- */
.login-container {
  width: 100%;
  max-width: 420px;
  background: rgba(12, 8, 20, 0.45);
  border-radius: 6px;
  padding: 42px 30px 32px 30px;
  box-shadow: 0 10px 30px rgba(0,0,0,0.6);
  text-align: center;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(255, 215, 0, 0.15);
  transition: box-shadow 0.3s, border 0.3s;
}

.login-container:hover {
  border-color: rgba(255, 215, 0, 0.3);
}

.logo-db {
  max-width: 400px;
  width: auto;
  margin: 0 auto 22px auto;
  display: block;
  filter: drop-shadow(0 3px 7px #120c0777);
  animation: fadeIn 1.8s;
  height: auto;
}

.login-container h2 {
  font-family: 'Cinzel Decorative', serif;
  font-size: 2.1rem;
  color: #ffe4b5;
  margin-bottom: 22px;
  letter-spacing: 1px;
  text-shadow: 0 2px 12px #a65a00cc;
}

/* ---------- INPUTS ---------- */
.input-group {
  position: relative;
  margin: 18px 0;
  display: flex;
  align-items: center;
  background: rgba(12, 8, 20, 0.55);
  border: 1.5px solid #4a3a12;
  border-radius: 10px;
  transition: border 0.3s, box-shadow 0.3s;
  box-shadow: 0 2px 10px #0a060f0c;
}

.input-group:focus-within {
  border-color: #ffd700;
  box-shadow: 0 0 12px #ffe4b566;
}

.input-group i {
  color: #ffe4b5;
  font-size: 1.13rem;
  margin-left: 13px;
  margin-right: 12px;
  flex-shrink: 0;
  opacity: 0.88;
}

.input-group input {
  flex: 1;
  padding: 14px 12px;
  font-size: 1.05rem;
  border: none;
  background: transparent;
  color: #fff;
  outline: none;
  letter-spacing: 0.5px;
  transition: color 0.3s;
  min-width: 0;
}

.input-group input:focus {
  color: #ffe4b5;
}

input[name="captcha"] {
  text-transform: uppercase;
  letter-spacing: 2px;
}

/* ---------- CAPTCHA ---------- */
.captcha-display {
  font-family: 'Fira Mono', 'Consolas', monospace;
  font-size: 1.18rem;
  letter-spacing: 6px;
  margin: 17px 0 0 0;
  background: linear-gradient(90deg, #3a2a08cc 0%, #5c4212cc 100%);
  border: 1.5px dashed #ffd700;
  padding: 13px 0;
  border-radius: 13px;
  color: #ffd700;
  user-select: none;
  text-align: center;
  box-shadow: 0 2px 10px #3a2a0844;
  font-weight: bold;
  text-shadow: 0 2px 8px #0006;
  letter-spacing: 7px;
  word-break: break-all;
}

/* ---------- BOTÃO ---------- */
.login-container button {
  margin-top: 28px;
  width: 100%;
  padding: 15px;
  font-size: 1.07rem;
  border-radius: 15px;
  border: none;
  background: linear-gradient(90deg, #ffd700 0%, #ffd700 100%);
  color: #120c07;
  font-weight: bold;
  cursor: pointer;
  box-shadow: 0 2px 18px #ffd70055;
  transition: background 0.25s, transform 0.13s, box-shadow 0.2s;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
}

.login-container button:hover {
  background: linear-gradient(90deg, #ffd700 0%, #a65a00 100%);
  box-shadow: 0 0 30px #ffd70099;
  transform: translateY(-2px) scale(1.018);
}

.login-container button:active {
  background: linear-gradient(90deg, #a65a00 0%, #ffd700 100%);
  transform: scale(0.96);
}

/* ---------- LINKS ---------- */
.register-link {
  margin-top: 22px;
  font-size: 1rem;
  color: #ffe4b5;
  text-shadow: 0 1px 6px #0a060f44;
  word-break: break-word;
}

.register-link a {
  color: #ffd700;
  text-decoration: none;
  font-weight: bold;
  transition: color 0.18s;
}

.register-link a:hover {
  text-decoration: underline;
  color: #ffe4b5;
}

/* ---------- FEEDBACK ---------- */
.error {
  margin-top: 14px;
  font-size: 1rem;
  color: #ff6161;
  font-weight: 600;
}

.success {
  margin-top: 14px;
  font-size: 1rem;
  color: #73ff7c;
  font-weight: 600;
}

/* ---------- ANIMAÇÕES ---------- */
@keyframes fadeIn {
  from { opacity: 0; transform: scale(0.95); }
  to { opacity: 1; transform: scale(1); }
}

/* ---------- RESPONSIVIDADE ---------- */
@media (max-width: 900px) {
  body {
    align-items: flex-start;
    padding-top: 10vh;
  }
  .login-container {
    max-width: 98%;
    padding: 28px 10px;
  }
}

@media (max-width: 600px) {
  body, html {
    align-items: flex-start;
    padding-top: 5vw;
    padding-bottom: 5vw;
  }
  .login-container {
    max-width: 99vw;
    padding: 10vw 2vw 6vw 2vw;
    border-radius: 12px;
    box-shadow: 0 4px 18px #1c140a55;
  }
  .logo-db {
    max-width: 75vw;
    margin-bottom: 17px;
  }
  .login-container h2 {
    font-size: 1.17rem;
    margin-bottom: 16px;
  }
  .input-group {
    margin: 11px 0;
    border-radius: 9px;
    font-size: .93rem;
  }
  .input-group i {
    margin-left: 7px;
    margin-right: 7px;
    font-size: 1rem;
  }
  .input-group input {
    font-size: 0.93rem;
    padding: 10px 6px;
  }
  .captcha-display {
    font-size: .95rem;
    padding: 8px 0;
    border-radius: 8px;
    margin: 11px 0 0 0;
    letter-spacing: 4px;
  }
  .login-container button {
    font-size: 0.94rem;
    padding: 11px;
    border-radius: 8px;
    margin-top: 20px;
  }
  .register-link {
    margin-top: 11px;
    font-size: .95rem;
  }
}

@media (max-width: 400px) {
  .login-container {
    padding: 3vw 1vw 3vw 1vw;
  }
  .logo-db {
    max-width: 96vw;
  }
  .input-group input {
    font-size: .88rem;
    padding: 7px 3px;
  }
  .captcha-display {
    font-size: .81rem;
    padding: 4px 0;
    border-radius: 6px;
    letter-spacing: 2px;
  }
}