:root {
  --bg: #0f172a;
  --surface: #172036;
  --surface-2: #0b1220;
  --border: #31405f;
  --text: #f3f4f6;
  --text-soft: #cbd5e1;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --danger: #ef4444;
  --success: #22c55e;
  --radius: 1rem;
  --shadow: 0 12px 30px rgba(0, 0, 0, 0.22);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  background: linear-gradient(180deg, var(--bg), var(--surface-2));
  color: var(--text);
}

.auth-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 1.25rem;
}

.auth-card {
  width: 100%;
  max-width: 460px;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.auth-card h1 {
  margin: 0 0 0.5rem;
}

.auth-subtext {
  margin: 0 0 1.5rem;
  color: var(--text-soft);
}

.form-group {
  margin-bottom: 1rem;
}

label {
  display: block;
  margin-bottom: 0.45rem;
  font-weight: 600;
}

input {
  width: 100%;
  min-height: 3rem;
  padding: 0.8rem 0.9rem;
  border-radius: 0.75rem;
  border: 1px solid var(--border);
  background: #0f172a;
  color: var(--text);
}

input:focus {
  outline: 2px solid rgba(59, 130, 246, 0.35);
  border-color: var(--primary);
}

.btn-primary {
  width: 100%;
  min-height: 3rem;
  border: 0;
  border-radius: 999px;
  background: var(--primary);
  color: #fff;
  font-weight: 700;
  cursor: pointer;
}

.btn-primary:hover {
  background: var(--primary-hover);
}

.field-message,
.form-response,
.auth-footer {
  font-size: 0.95rem;
}

.field-message {
  display: block;
  min-height: 1.2rem;
  margin-top: 0.3rem;
  color: var(--text-soft);
}

.form-response {
  min-height: 1.4rem;
  margin-top: 0.75rem;
}

.form-response.error,
.field-message.error {
  color: var(--danger);
}

.form-response.success,
.field-message.success {
  color: var(--success);
}

.auth-footer {
  margin: 1rem 0 0;
  color: var(--text-soft);
  text-align: center;
}

.auth-footer a {
  color: #93c5fd;
  text-decoration: none;
}