.form-section {
  min-height: calc(100vh - 68px - 80px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-xl) var(--sp-lg);
  background:
    radial-gradient(ellipse 70% 50% at 50% 0%, rgba(139,30,63,.10) 0%, transparent 65%),
    linear-gradient(160deg, #fdf4f7 0%, #fbeaf0 40%, #fdf8fa 100%);
  position: relative;
  overflow: hidden;
}

.form-section::before {
  content: '';
  position: absolute;
  width: 600px; height: 600px;
  border-radius: 50%;
  top: -200px; right: -200px;
  background: radial-gradient(circle, rgba(139,30,63,.06) 0%, transparent 70%);
  pointer-events: none;
}

/* ── Card ─────────────────────────────────────────────────── */
.auth-form {
  position: relative;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: 52px 48px;
  width: 100%;
  max-width: 480px;
  box-shadow: var(--shadow-lg);
  animation: form-enter .6s var(--ease-out) both;
}

@keyframes form-enter {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* brand top stripe */
.auth-form::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--crimson-600), var(--gold-400));
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

/* ── Logo mark inside form ────────────────────────────────── */
.auth-logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--clr-primary-dark);
  text-align: center;
  margin-bottom: var(--sp-lg);
  letter-spacing: .02em;
}

/* ── Headings ─────────────────────────────────────────────── */
.auth-form h2 {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 600;
  color: var(--clr-primary-dark);
  margin-bottom: 6px;
  line-height: 1.15;
}

.form-subtitle {
  font-size: .9rem;
  color: var(--clr-muted);
  margin-bottom: var(--sp-lg);
  line-height: 1.5;
}

/* ── Inputs ───────────────────────────────────────────────── */
.auth-form input[type="text"],
.auth-form input[type="email"],
.auth-form input[type="password"],
.auth-form input[type="tel"],
.auth-form input[type="number"],
.auth-form input[type="date"],
.auth-form select {
  display: block;
  width: 100%;
  box-sizing: border-box;
  min-height: 48px;
  padding: 14px 18px;
  margin-bottom: 14px;
  background: var(--clr-bg);
  border: 1.5px solid var(--clr-border);
  border-radius: var(--radius-md);
  font-size: .92rem;
  font-family: var(--font-body);
  color: var(--clr-text);
  transition: border-color var(--dur-fast),
              box-shadow var(--dur-fast),
              background var(--dur-fast);
}

.auth-form input[type="number"]::-webkit-outer-spin-button,
.auth-form input[type="number"]::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.auth-form input[type="number"] {
  -moz-appearance: textfield;
  appearance: textfield;
}

.auth-form input[type="date"] {
  color-scheme: light;
}

.auth-form input:hover,
.auth-form select:hover {
  border-color: var(--crimson-400);
  background: var(--clr-surface);
}

.auth-form input:focus,
.auth-form select:focus {
  outline: none;
  border-color: var(--clr-primary);
  background: var(--clr-surface);
  box-shadow: 0 0 0 4px rgba(139,30,63,.09);
}

.auth-form input::placeholder { color: var(--ink-300); }

.auth-form select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238b1e3f' stroke-width='2'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
  cursor: pointer;
}

/* ── Submit button ────────────────────────────────────────── */
.auth-form button[type="submit"] {
  display: block;
  width: 100%;
  padding: 15px;
  margin-top: 6px;
  background: linear-gradient(135deg, var(--crimson-600), var(--crimson-800));
  color: #fff;
  border: none;
  border-radius: var(--radius-full);
  font-family: var(--font-body);
  font-weight: 700;
  font-size: .95rem;
  letter-spacing: .06em;
  text-transform: uppercase;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(139,30,63,.35);
  transition: transform var(--dur-fast) var(--ease-out),
              box-shadow var(--dur-fast);
}

.auth-form button[type="submit"]:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(139,30,63,.45);
}

.auth-form button[type="submit"]:active { transform: translateY(0); }

/* ── Helper links ─────────────────────────────────────────── */
.form-links {
  text-align: right;
  margin: -6px 0 14px;
}

.form-links a {
  font-size: .83rem;
  color: var(--clr-primary);
  font-weight: 500;
  transition: opacity var(--dur-fast);
}

.form-links a:hover { opacity: .75; }

.signup-link {
  text-align: center;
  margin-top: var(--sp-md);
  font-size: .88rem;
  color: var(--clr-muted);
}

.signup-link a {
  color: var(--clr-primary);
  font-weight: 600;
  transition: opacity var(--dur-fast);
}

.signup-link a:hover { opacity: .75; }

/* ── Terms checkbox ───────────────────────────────────────── */
.terms-box {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: var(--sp-md);
}

.terms-box input[type="checkbox"] {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  margin-bottom: 0;
  accent-color: var(--clr-primary);
  cursor: pointer;
  border-radius: 4px;
}

.terms-box label {
  font-size: .83rem;
  color: var(--clr-muted);
  line-height: 1.55;
  cursor: pointer;
}

.terms-box label a {
  color: var(--clr-primary);
  font-weight: 500;
}

.terms-box label a:hover { text-decoration: underline; }

/* ── Error / alert messages ───────────────────────────────── */
.auth-alert {
  padding: 12px 16px;
  border-radius: var(--radius-md);
  font-size: .88rem;
  margin-bottom: var(--sp-md);
}

.auth-alert.error {
  background: #fef2f2;
  border: 1px solid #fecaca;
  color: #991b1b;
}

.auth-alert.success {
  background: #f0fdf4;
  border: 1px solid #bbf7d0;
  color: #166534;
}

/* ── Divider ──────────────────────────────────────────────── */
.auth-divider {
  display: flex;
  align-items: center;
  gap: var(--sp-md);
  margin: var(--sp-md) 0;
}

.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--clr-border);
}

.auth-divider span {
  font-size: .8rem;
  color: var(--ink-300);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 540px) {
  .auth-form { padding: 36px 24px; }
  .auth-form h2 { font-size: 1.7rem; }
}