:root {
  font-family: 'Inter', sans-serif;
  color: #112032;
  background-color: #dfe5f0;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background:
    linear-gradient(0deg, transparent 24%, rgba(44, 73, 109, 0.1) 25%, rgba(44, 73, 109, 0.1) 26%, transparent 27%, transparent 74%, rgba(44, 73, 109, 0.1) 75%, rgba(44, 73, 109, 0.1) 76%, transparent 77%, transparent),
    linear-gradient(90deg, transparent 24%, rgba(44, 73, 109, 0.1) 25%, rgba(44, 73, 109, 0.1) 26%, transparent 27%, transparent 74%, rgba(44, 73, 109, 0.1) 75%, rgba(44, 73, 109, 0.1) 76%, transparent 77%, transparent),
    radial-gradient(circle at top, rgba(214, 223, 236, 0.85), rgba(212, 222, 235, 0) 55%),
    #dde4ef;
  background-size: 120px 120px;
}

.login-shell {
  width: min(520px, 92vw);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.8rem;
  text-align: center;
}

.access-banner {
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.75rem;
  letter-spacing: 0.32rem;
  text-transform: uppercase;
  color: #0a2646;
  border-bottom: 1px solid rgba(12, 40, 72, 0.35);
  padding-bottom: 0.75rem;
  width: 100%;
}

.login-page-title {
  margin: 0;
  font-family: 'Inter', sans-serif;
  font-size: 1.15rem;
  letter-spacing: 0.12rem;
  font-weight: 600;
  text-transform: uppercase;
  color: #0f2745;
  width: max-content;
  max-width: 100%;
  white-space: nowrap;
}

.login-card {
  position: relative;
  width: 100%;
  background: rgba(249, 252, 255, 0.82);
  border: 1px solid rgba(32, 55, 85, 0.32);
  box-shadow:
    0 18px 34px rgba(21, 42, 72, 0.18),
    inset 0 0 0 1px rgba(255, 255, 255, 0.25);
  padding: 2.8rem 3rem 3.2rem;
}

.login-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  height: 6px;
  width: 100%;
  background: linear-gradient(90deg, #124b81, rgba(18, 75, 129, 0.45));
}

.login-card__header {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.45rem;
  margin-bottom: 2.1rem;
}

.login-card__header h2 {
  margin: 0;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.95rem;
  letter-spacing: 0.5rem;
  color: #0f2745;
}

.login-card__subtitle {
  margin: 0;
  font-size: 0.88rem;
  letter-spacing: 0.08rem;
  text-transform: uppercase;
  color: #54637a;
}

.login-form {
  display: flex;
  flex-direction: column;
  gap: 1.4rem;
  text-align: left;
}

.login-field {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
  font-size: 0.72rem;
  letter-spacing: 0.12rem;
  text-transform: uppercase;
  color: #0f2745;
}

.login-field input {
  height: 48px;
  padding: 0 0.9rem;
  border: 1px solid rgba(70, 94, 126, 0.45);
  background: rgba(236, 241, 247, 0.95);
  color: #132033;
  font-size: 0.94rem;
  letter-spacing: 0.05rem;
  transition: border-color 120ms ease, box-shadow 120ms ease;
  outline: none;
}

.login-field input:focus {
  border-color: #1a4f88;
  box-shadow: 0 0 0 2px rgba(26, 79, 136, 0.16);
}

.login-button {
  margin-top: 0.6rem;
  height: 52px;
  border: none;
  background: #1a4580;
  color: #f4f7fb;
  text-transform: uppercase;
  letter-spacing: 0.16rem;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  transition: background-color 140ms ease, transform 140ms ease;
}

.login-button:hover,
.login-button:focus-visible {
  background: #215192;
  transform: translateY(-1px);
}

.login-button:disabled {
  opacity: 0.55;
  cursor: default;
  transform: none;
}

.login-error {
  margin-bottom: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid rgba(186, 44, 44, 0.4);
  background: rgba(255, 235, 235, 0.92);
  color: #ba2c2c;
  font-size: 0.78rem;
  letter-spacing: 0.05rem;
  text-transform: uppercase;
  text-align: center;
}

.classification-note {
  margin-top: 2.3rem;
  font-family: 'Share Tech Mono', monospace;
  font-size: 0.64rem;
  letter-spacing: 0.28rem;
  text-transform: uppercase;
  color: rgba(12, 40, 72, 0.62);
}

@media (max-width: 640px) {
  .login-shell {
    width: min(460px, 94vw);
  }

  .login-card {
    padding: 2.3rem 2.2rem 2.9rem;
  }

  .login-card__header h2 {
    letter-spacing: 0.36rem;
  }

  .login-field input {
    height: 46px;
  }

  .login-page-title {
    font-size: 1.12rem;
  }
}