* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  font-family: Arial, Helvetica, sans-serif;
  color: #333;
  background-color: #1a3a42;
  background-image: url("../img/bg.jpg");
  background-size: cover;
  background-position: center center;
  background-repeat: no-repeat;
  background-attachment: fixed;
  min-height: 100vh;
}

.page {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 48px;
}

.brand {
  text-align: center;
  margin-bottom: 28px;
}

.brand img {
  width: 160px;
  height: auto;
  filter: brightness(0) invert(1);
}

.card {
  width: 100%;
  max-width: 420px;
  border-radius: 2px;
  overflow: hidden;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

.card-header {
  background: #3a8795;
  color: #fff;
  font-size: 18px;
  font-weight: 600;
  padding: 14px 18px;
}

.card-body {
  background: rgba(245, 247, 248, 0.92);
  padding: 22px 18px 24px;
}

.field {
  margin-bottom: 16px;
}

.field label {
  display: block;
  font-size: 14px;
  color: #444;
  margin-bottom: 6px;
}

.field input {
  width: 100%;
  height: 38px;
  border: 1px solid #c8ced3;
  border-radius: 2px;
  padding: 0 10px;
  font-size: 14px;
  background: #fff;
  color: #222;
}

.field input:focus {
  outline: none;
  border-color: #3a8795;
  box-shadow: 0 0 0 2px rgba(58, 135, 149, 0.2);
}

.actions {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-top: 8px;
}

.btn {
  appearance: none;
  border: 0;
  background: #3a8795;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 2px;
  cursor: pointer;
}

.btn:hover {
  background: #327887;
}

.hint {
  font-size: 12px;
  color: #666;
  margin-top: 14px;
  line-height: 1.4;
}

.alert {
  padding: 10px 12px;
  margin-bottom: 14px;
  font-size: 13px;
  border-radius: 2px;
}

.alert-error {
  background: #fdecea;
  color: #8a1f11;
  border: 1px solid #f5c6c0;
}

.alert-success {
  background: #e8f6ef;
  color: #1e6b45;
  border: 1px solid #b7e0c8;
}

.footer-brand {
  margin-top: 28px;
  color: rgba(255, 255, 255, 0.85);
  font-size: 12px;
  letter-spacing: 0.02em;
}

@media (max-width: 480px) {
  .brand img {
    width: 130px;
  }

  .card-header {
    font-size: 16px;
  }
}