:root {
  --color-white: #FFFFFF;
  --color-teal-500: #21808D;
  --color-teal-600: #1D7480;
  --color-teal-700: #1A6873;
  --color-text: #1F2121;
  --color-text-secondary: #626C71;
  --color-border: #E5E5E5;
  --color-background: #F5F5F5;
  --space-8: 8px;
  --space-12: 12px;
  --space-16: 16px;
  --space-24: 24px;
  --space-32: 32px;
  --radius-base: 8px;
  --radius-lg: 12px;
  --shadow-lg: 0 10px 30px rgba(0,0,0,0.1);
}

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

body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--color-text);
}

/* Auth Container */
.auth-container {
  background: linear-gradient(135deg, var(--color-teal-500), var(--color-teal-700));
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-16);
}

.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-white);
  border-radius: var(--radius-lg);
  padding: var(--space-32);
  box-shadow: var(--shadow-lg);
}

.auth-header {
  text-align: center;
  margin-bottom: var(--space-32);
}

.auth-logo {
  font-size: 32px;
  font-weight: 900;
  color: var(--color-teal-600);
  margin-bottom: var(--space-16);
}

h1 {
  font-size: 24px;
  margin-bottom: var(--space-8);
}

.auth-subtitle {
  color: var(--color-text-secondary);
  font-size: 14px;
}

/* Form Elements */
.form-group {
  margin-bottom: var(--space-16);
}

.form-label {
  display: block;
  font-weight: 500;
  margin-bottom: var(--space-8);
  font-size: 14px;
}

.form-control {
  width: 100%;
  padding: var(--space-12);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-base);
  font-size: 14px;
  transition: all 0.2s;
}

.form-control:focus {
  outline: none;
  border-color: var(--color-teal-500);
  box-shadow: 0 0 0 3px rgba(33, 128, 141, 0.1);
}

.form-options {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: var(--space-16);
  font-size: 14px;
}

.checkbox-label {
  display: flex;
  align-items: center;
  gap: var(--space-8);
}

/* Buttons */
.btn {
  padding: var(--space-12) var(--space-24);
  border: none;
  border-radius: var(--radius-base);
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  text-decoration: none;
  display: inline-block;
  text-align: center;
}

.btn--primary {
  background: var(--color-teal-600);
  color: white;
}

.btn--primary:hover {
  background: var(--color-teal-700);
}

.btn--outline {
  background: transparent;
  border: 2px solid var(--color-teal-600);
  color: var(--color-teal-600);
}

.btn--outline:hover {
  background: var(--color-teal-600);
  color: white;
}

.btn--full {
  width: 100%;
}

/* Links */
.link-secondary {
  color: var(--color-teal-600);
  text-decoration: none;
  font-size: 14px;
}

.link-secondary:hover {
  text-decoration: underline;
}

.link-primary {
  color: var(--color-teal-600);
  text-decoration: underline;
}

/* Auth Footer */
.auth-footer {
  margin-top: var(--space-24);
  padding-top: var(--space-24);
  border-top: 1px solid var(--color-border);
  text-align: center;
}

.auth-footer p {
  margin-bottom: var(--space-12);
  color: var(--color-text-secondary);
  font-size: 14px;
}