/* Auth pages (login.html, register.html) */

.auth-page {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg);
  padding: 100px 5% 60px;
}

.auth-card {
  background: var(--white);
  border-radius: 16px; padding: 44px 40px;
  width: 100%; max-width: 420px;
  box-shadow: 0 4px 24px rgba(0,0,0,0.07);
  border: 1px solid var(--border);
}

.auth-logo { text-align: center; margin-bottom: 28px; }

.auth-title {
  font-family: 'Inter', sans-serif;
  font-size: 24px; font-weight: 700;
  color: var(--ink); letter-spacing: -0.4px;
  margin-bottom: 6px; text-align: center;
}

.auth-sub {
  font-size: 14px; color: var(--slate);
  text-align: center; margin-bottom: 28px;
}

.form-group { margin-bottom: 18px; }

.form-label {
  display: block; font-size: 13px; font-weight: 600;
  color: var(--ink); margin-bottom: 7px;
}

.form-input {
  width: 100%; padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 14px; color: var(--ink);
  outline: none; transition: border-color 0.15s, box-shadow 0.15s;
  background: var(--white);
}
.form-input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(61,191,184,0.1);
}
.form-input.error { border-color: #ef4444; }

.form-error {
  font-size: 12px; color: #ef4444;
  margin-top: 5px; display: none;
}
.form-error.visible { display: block; }

.role-selector {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 10px; margin-bottom: 18px;
}

.role-option {
  border: 1.5px solid var(--border);
  border-radius: 10px; padding: 14px;
  cursor: pointer; text-align: center;
  transition: border-color 0.15s, background 0.15s;
}
.role-option:hover { border-color: var(--teal); }
.role-option.selected {
  border-color: var(--teal);
  background: var(--teal-light);
}
.role-option input[type="radio"] { display: none; }
.role-icon { font-size: 22px; margin-bottom: 5px; display: block; }
.role-label { font-size: 13px; font-weight: 600; color: var(--ink); }
.role-desc { font-size: 12px; color: var(--slate); margin-top: 2px; }

.btn-auth {
  width: 100%; padding: 13px;
  background: var(--ink); color: var(--white);
  border: none; border-radius: 10px;
  font-family: 'Inter', sans-serif;
  font-size: 15px; font-weight: 600;
  cursor: pointer; transition: opacity 0.15s;
  margin-top: 6px;
}
.btn-auth:hover { opacity: 0.85; }
.btn-auth:disabled { opacity: 0.5; cursor: not-allowed; }

.auth-switch {
  text-align: center; margin-top: 18px;
  font-size: 13px; color: var(--slate);
}
.auth-switch a {
  color: var(--teal); font-weight: 600; text-decoration: none;
}
.auth-switch a:hover { text-decoration: underline; }

.spinner {
  width: 16px; height: 16px;
  border: 2px solid rgba(255,255,255,0.3);
  border-top-color: white; border-radius: 50%;
  animation: spin 0.7s linear infinite;
  display: inline-block; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* Password toggle */
.pw-wrap { position: relative; }
.pw-wrap .form-input { padding-right: 44px; }
.pw-toggle {
  position: absolute; right: 12px; top: 50%; transform: translateY(-50%);
  background: none; border: none; cursor: pointer; padding: 4px;
  color: var(--slate); display: flex; align-items: center;
  transition: color 0.15s;
}
.pw-toggle:hover { color: var(--ink); }

/* Password strength */
.pw-strength { margin-top: 6px; }
.pw-strength-bar {
  height: 4px; border-radius: 2px;
  background: var(--border); overflow: hidden;
}
.pw-strength-fill {
  height: 100%; border-radius: 2px;
  transition: width 0.25s, background 0.25s;
  width: 0;
}
.pw-strength-label {
  font-size: 11px; color: var(--slate); margin-top: 4px;
}

@media (max-width: 480px) {
  .auth-card { padding: 28px 20px; }
  .form-input { font-size: 16px; }
}