:root {
  --bg: #f4f8f8;
  --bg-accent: #def4ef;
  --card: #ffffff;
  --text: #112623;
  --muted: #4d6460;
  --brand: #0f766e;
  --brand-strong: #0a615a;
  --accent: #df7c2f;
  --line: #d0dfdc;
  --shadow: 0 12px 30px rgba(15, 53, 49, 0.12);
}

* {
  box-sizing: border-box;
}

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

body {
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 10% -5%, #bee5dd 0%, transparent 30%),
    radial-gradient(circle at 90% 10%, #ffe2cc 0%, transparent 34%),
    var(--bg);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 1rem;
}

.login-container {
  width: 100%;
  max-width: 420px;
  background: var(--card);
  border-radius: 1.2rem;
  box-shadow: var(--shadow);
  padding: clamp(1.5rem, 5vw, 2rem);
}

.login-header {
  margin-bottom: 2rem;
  text-align: center;
}

.login-header h1 {
  font-family: "Fraunces", Georgia, serif;
  font-size: clamp(1.5rem, 5vw, 1.8rem);
  margin: 0 0 0.5rem 0;
  color: var(--text);
}

.login-header p {
  font-size: 0.95rem;
  color: var(--muted);
  margin: 0;
}

.form-group {
  margin-bottom: 1.5rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text);
}

input {
  width: 100%;
  padding: 0.75rem;
  border: 1px solid var(--line);
  border-radius: 0.6rem;
  font-family: inherit;
  font-size: 1rem;
  transition: all 0.2s;
}

input:focus {
  outline: none;
  border-color: var(--brand);
  box-shadow: 0 0 0 3px rgba(15, 118, 110, 0.1);
}

input::placeholder {
  color: #aaa;
}

button {
  width: 100%;
  padding: 0.75rem;
  background: linear-gradient(135deg, var(--brand) 0%, var(--brand-strong) 100%);
  color: #fff;
  border: none;
  border-radius: 0.6rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
}

button:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px rgba(15, 118, 110, 0.25);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

#authMessage {
  margin-top: 1rem;
  padding: 0.75rem;
  border-radius: 0.6rem;
  font-size: 0.9rem;
  min-height: 1.2rem;
  white-space: pre-wrap;
}

#authMessage.error {
  background: #fee2e2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

#authMessage.success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

@media (max-width: 480px) {
  body {
    padding: 0.5rem;
  }

  .login-container {
    padding: clamp(1.5rem, 4vw, 1.75rem);
  }

  .login-header {
    margin-bottom: 1.5rem;
  }

  .form-group {
    margin-bottom: 1.25rem;
  }
}