:root {
  --bg: #0b1120;
  --bg-soft: #111827;
  --accent: #0ea5e9;
  --accent-hover: #0284c7;
  --text: #f8fafc;
  --text-muted: #94a3b8;
  --card-bg: rgba(30, 41, 59, 0.5);
  --card-border: rgba(255, 255, 255, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  background-image: 
    radial-gradient(circle at 15% 50%, rgba(14, 165, 233, 0.15), transparent 25%),
    radial-gradient(circle at 85% 30%, rgba(139, 92, 246, 0.15), transparent 25%);
}

.auth-container {
  width: 100%;
  max-width: 420px;
  background: rgba(30, 41, 59, 0.6);
  backdrop-filter: blur(16px);
  border: 1px solid var(--card-border);
  border-radius: 20px;
  padding: 40px;
  box-shadow: 0 24px 64px rgba(0, 0, 0, 0.3);
}

.auth-header {
  text-align: center;
  margin-bottom: 32px;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--accent), #8b5cf6);
  border-radius: 50%;
  font-weight: 900;
  font-size: 24px;
  font-family: Georgia, serif;
  margin: 0 auto 16px;
}

.auth-header h1 {
  font-size: 24px;
  font-weight: 700;
  margin-bottom: 8px;
}

.auth-header p {
  color: var(--text-muted);
  font-size: 14px;
}

.auth-form {
  display: grid;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.form-group label {
  font-size: 13px;
  font-weight: 600;
  color: var(--text-muted);
}

.form-group input {
  padding: 12px 16px;
  border-radius: 8px;
  border: 1px solid var(--card-border);
  background: rgba(15, 23, 42, 0.6);
  color: var(--text);
  font-family: inherit;
  font-size: 14px;
  outline: none;
  transition: all 0.2s;
}

.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 13px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  cursor: pointer;
}

.forgot-password {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
}

.forgot-password:hover {
  text-decoration: underline;
}

.btn-submit {
  padding: 14px;
  border-radius: 8px;
  background: var(--accent);
  color: #fff;
  border: none;
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: all 0.2s;
  margin-top: 8px;
}

.btn-submit:hover {
  background: var(--accent-hover);
  box-shadow: 0 4px 12px rgba(14, 165, 233, 0.3);
}

.auth-footer {
  text-align: center;
  margin-top: 24px;
  font-size: 14px;
  color: var(--text-muted);
}

.auth-footer a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 600;
}

.auth-footer a:hover {
  text-decoration: underline;
}