body {
  margin: 0;
  padding: 0;
  background-color: #ffffff;
  color: #000000;
}

/* Screen-reader only label */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* Auth Container */
.auth-container {
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 60vh;
  padding: 3rem 1.5rem;
}

.auth-card {
  max-width: 420px;
  width: 100%;
  text-align: center;
  padding: 2.5rem 2rem;
  border: 1px solid #e6e6e6;
  border-radius: 12px;
  background: #ffffff;
}

.auth-card.wide {
  max-width: 640px;
}

.auth-card h1 {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  color: #000000;
}

.auth-subtitle {
  font-size: 1rem;
  color: #555;
  margin: 0 0 1.5rem;
  line-height: 1.5;
}

/* Auth Forms */
.auth-form {
  width: 100%;
}

.form-field {
  margin-bottom: 0.75rem;
}

.form-field input {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-family: inherit;
  border: 1px solid #dadce0;
  border-radius: 8px;
  background: #ffffff;
  color: #000000;
  box-sizing: border-box;
  transition: border-color 0.2s;
}

.form-field input:focus {
  outline: none;
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.15);
}

.form-field input::placeholder {
  color: #999;
}

/* Auth Buttons */
.auth-btn {
  display: block;
  width: 100%;
  padding: 10px 20px;
  font-size: 0.95rem;
  font-weight: 500;
  font-family: inherit;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
  border: 1px solid transparent;
}

.primary-btn {
  background: #007bff;
  color: #ffffff;
  border-color: #007bff;
  margin-top: 0.25rem;
}

.primary-btn:hover {
  background: #0069d9;
  border-color: #0062cc;
}

.primary-btn:active {
  background: #005cbf;
}

.secondary-btn {
  background: #f5f5f5;
  color: #333;
  border-color: #dadce0;
  padding: 10px 16px;
}

.secondary-btn:hover {
  background: #eee;
  border-color: #c6c6c6;
}

.secondary-btn:active {
  background: #e0e0e0;
}

.auth-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

/* Divider */
.auth-divider {
  display: flex;
  align-items: center;
  margin: 1.25rem 0;
  gap: 12px;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: #dadce0;
}

.auth-divider span {
  font-size: 0.85rem;
  color: #888;
  text-transform: lowercase;
}

/* Google Sign-In Button */
.google-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  max-width: 300px;
  padding: 12px 24px;
  font-size: 1rem;
  font-weight: 500;
  font-family: inherit;
  color: #3c4043;
  background: #ffffff;
  border: 1px solid #dadce0;
  border-radius: 8px;
  cursor: pointer;
  transition: background-color 0.2s, border-color 0.2s, box-shadow 0.2s;
}

.google-btn:hover {
  background-color: #f7f8f8;
  border-color: #c6c6c6;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.google-btn:active {
  background-color: #eeefef;
}

.google-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.google-icon {
  flex-shrink: 0;
}

/* Status Message */
.auth-msg {
  min-height: 1.5rem;
  margin: 1.25rem 0 0;
  font-size: 0.9rem;
  color: #555;
}

.auth-msg.error {
  color: #d93025;
}

/* Terms Link */
.auth-terms {
  margin: 1.25rem 0 0;
  font-size: 0.85rem;
  color: #888;
  line-height: 1.5;
}

.auth-terms a {
  color: #007bff;
  text-decoration: underline;
}

.auth-terms a:hover {
  color: #0056b3;
}

/* Switch link (login ↔ signup) */
.auth-switch {
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: #555;
}

.auth-switch a {
  color: #007bff;
  text-decoration: underline;
  font-weight: 500;
}

.auth-switch a:hover {
  color: #0056b3;
}

/* Forgot password link */
.auth-forgot {
  text-align: right;
  margin: -0.25rem 0 0.75rem;
}

.auth-forgot a {
  font-size: 0.85rem;
  color: #007bff;
  text-decoration: none;
}

.auth-forgot a:hover {
  text-decoration: underline;
  color: #0056b3;
}

/* ──────────────────────────────────────
   Plan Selector (signup page)
   ────────────────────────────────────── */
.plan-selector {
  display: flex;
  gap: 1rem;
  margin-bottom: 1.5rem;
}

.plan-option {
  flex: 1;
  padding: 1.25rem 1rem;
  border: 2px solid #dadce0;
  border-radius: 12px;
  background: #fafafa;
  cursor: pointer;
  text-align: left;
  transition: border-color 0.2s, box-shadow 0.2s;
  position: relative;
  font-family: inherit;
  color: inherit;
}

.plan-option:hover:not(:disabled) {
  border-color: #999;
}

.plan-option.selected {
  border-color: #007bff;
  box-shadow: 0 0 0 2px rgba(0, 123, 255, 0.15);
  background: #f0f7ff;
}

.plan-option:disabled {
  opacity: 0.55;
  cursor: not-allowed;
  background: #f5f5f5;
}

.plan-badge {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  background: #e0e0e0;
  color: #666;
  padding: 2px 8px;
  border-radius: 4px;
  margin-bottom: 0.5rem;
}

.plan-badge-pro {
  background: #007bff;
  color: #ffffff;
}

.plan-name {
  display: block;
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.plan-price {
  display: block;
  font-size: 0.9rem;
  color: #555;
  margin-bottom: 0.5rem;
}

.plan-features {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.8rem;
  color: #666;
  line-height: 1.7;
}

.plan-features li::before {
  content: '✓ ';
  color: #34a853;
  font-weight: 700;
}

.plan-option:disabled .plan-features li::before {
  color: #999;
}

/* Billing interval toggle on signup page */
.signup-interval-toggle {
  display: flex;
  gap: 0.5rem;
  margin-bottom: 1.5rem;
  justify-content: center;
}

.interval-btn {
  padding: 8px 16px;
  font-size: 0.85rem;
  font-family: inherit;
  font-weight: 500;
  border: 1px solid #dadce0;
  border-radius: 8px;
  background: #fafafa;
  color: #555;
  cursor: pointer;
  transition: border-color 0.2s, background-color 0.2s;
}

.interval-btn:hover {
  border-color: #999;
}

.interval-btn.active {
  border-color: #007bff;
  background: #f0f7ff;
  color: #007bff;
  font-weight: 600;
}

.interval-save {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  background: #34a853;
  color: #fff;
  padding: 1px 6px;
  border-radius: 4px;
  margin-left: 4px;
  vertical-align: middle;
}

/* ──────────────────────────────────────
   Dark Mode
   ────────────────────────────────────── */
@media (prefers-color-scheme: dark) {
  body {
    background-color: #0a0a0a;
    color: #e0e0e0;
  }

  .auth-card {
    background: #111111;
    border-color: #2a2a2a;
  }

  .auth-card h1 {
    color: #ffffff;
  }

  .auth-subtitle {
    color: #aaa;
  }

  .form-field input {
    background: #1a1a1a;
    border-color: #333;
    color: #e0e0e0;
  }

  .form-field input:focus {
    border-color: #4da6ff;
    box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.15);
  }

  .form-field input::placeholder {
    color: #666;
  }

  .primary-btn {
    background: #1a5aa8;
    border-color: #1a5aa8;
  }

  .primary-btn:hover {
    background: #2070c0;
    border-color: #2070c0;
  }

  .secondary-btn {
    background: #1a1a1a;
    color: #e0e0e0;
    border-color: #333;
  }

  .secondary-btn:hover {
    background: #222;
    border-color: #444;
  }

  .auth-divider::before,
  .auth-divider::after {
    background: #333;
  }

  .auth-divider span {
    color: #666;
  }

  .google-btn {
    background: #1a1a1a;
    border-color: #333;
    color: #e0e0e0;
  }

  .google-btn:hover {
    background-color: #222;
    border-color: #444;
    box-shadow: 0 1px 3px rgba(255, 255, 255, 0.05);
  }

  .google-btn:active {
    background-color: #2a2a2a;
  }

  .auth-msg {
    color: #aaa;
  }

  .auth-msg.error {
    color: #ff6b6b;
  }

  .auth-terms {
    color: #777;
  }

  .auth-terms a {
    color: #4da6ff;
  }

  .auth-terms a:hover {
    color: #80bfff;
  }

  .auth-switch {
    color: #aaa;
  }

  .auth-switch a {
    color: #4da6ff;
  }

  .auth-switch a:hover {
    color: #80bfff;
  }

  .auth-forgot a {
    color: #4da6ff;
  }

  .auth-forgot a:hover {
    color: #80bfff;
  }

  /* Plan selector dark */
  .plan-option {
    border-color: #333;
    background: #1a1a1a;
    color: #e0e0e0;
  }

  .plan-option:hover:not(:disabled) {
    border-color: #555;
  }

  .plan-option.selected {
    border-color: #4da6ff;
    box-shadow: 0 0 0 2px rgba(77, 166, 255, 0.15);
    background: #12243a;
  }

  .plan-option:disabled {
    background: #151515;
  }

  .plan-badge {
    background: #2a2a2a;
    color: #888;
  }

  .plan-badge-pro {
    background: #1a5aa8;
    color: #e0e0e0;
  }

  .plan-price {
    color: #aaa;
  }

  .plan-features {
    color: #999;
  }

  /* Interval toggle dark */
  .interval-btn {
    background: #1a1a1a;
    border-color: #333;
    color: #aaa;
  }

  .interval-btn:hover {
    border-color: #555;
  }

  .interval-btn.active {
    border-color: #4da6ff;
    background: #12243a;
    color: #4da6ff;
  }
}

/* ──────────────────────────────────────
   Responsive
   ────────────────────────────────────── */
@media (max-width: 480px) {
  .auth-container {
    padding: 2rem 1rem;
  }

  .auth-card {
    padding: 2rem 1.25rem;
  }

  .auth-card h1 {
    font-size: 1.5rem;
  }

  .google-btn {
    max-width: 100%;
  }

  .plan-selector {
    flex-direction: column;
  }

  .signup-interval-toggle {
    flex-direction: column;
  }
}