/* ============================================================
   FORMS — Inputs, Labels, PIN, Validation, Demo Form Card
   ============================================================ */

/* ── Form Container ───────────────────────────────────────── */
.form-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
  padding: var(--space-2xl);
  max-width: 520px;
  margin: 0 auto;
}

.form-title {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
}
.form-subtitle {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-xl);
}

/* ── Form Groups ──────────────────────────────────────────── */
.form-group { margin-bottom: var(--space-lg); }
.form-group--half {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-base);
}

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-mid);
  margin-bottom: var(--space-sm);
}
.form-label .required { color: var(--color-error); margin-left: 2px; }

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-family);
  font-size: var(--text-base);
  color: var(--color-text);
  background: var(--color-white);
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
}
.form-input::placeholder,
.form-textarea::placeholder { color: var(--color-text-muted); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}
.form-input.error,
.form-select.error,
.form-textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(220,38,38,0.10);
}
.form-textarea { resize: vertical; min-height: 100px; line-height: var(--leading-normal); }
.form-select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%2364748B' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
  cursor: pointer;
}

.form-error {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-error);
  margin-top: var(--space-xs);
  font-weight: var(--weight-medium);
}
.form-hint {
  display: block;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* ── PIN Input ────────────────────────────────────────────── */
.pin-wrapper {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-lg);
}
.pin-label {
  font-size: var(--text-sm);
  font-weight: var(--weight-semibold);
  color: var(--color-text-mid);
  text-align: center;
}
.pin-inputs {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
}
.pin-input {
  width: 64px; height: 72px;
  text-align: center;
  font-size: var(--text-2xl);
  font-weight: var(--weight-bold);
  color: var(--color-text);
  background: var(--color-off-white);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-xl);
  outline: none;
  transition: all var(--transition-base);
  caret-color: var(--color-primary);
}
.pin-input:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(var(--color-primary-rgb), 0.12);
}
.pin-input.filled {
  border-color: var(--color-primary);
  background: var(--color-light-blue);
  color: var(--color-primary);
}
.pin-input.error {
  border-color: var(--color-error);
  background: var(--color-error-bg);
  animation: shake 0.4s ease;
}
@keyframes shake {
  0%,100% { transform: translateX(0); }
  20%,60%  { transform: translateX(-6px); }
  40%,80%  { transform: translateX(6px); }
}

/* ── Demo Access Page ─────────────────────────────────────── */
.demo-access-page {
  min-height: 100vh;
  background: var(--color-off-white);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: calc(var(--nav-height) + var(--space-2xl)) var(--space-xl) var(--space-2xl);
}
.demo-access-card {
  background: var(--color-white);
  border-radius: var(--radius-2xl);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-xl);
  padding: var(--space-2xl) var(--space-2xl);
  max-width: 480px;
  width: 100%;
}
.demo-access-card__icon {
  width: 64px; height: 64px;
  background: rgba(var(--color-primary-rgb), 0.08);
  border-radius: var(--radius-xl);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto var(--space-xl);
}
.demo-access-card h1 {
  font-size: var(--text-xl);
  font-weight: var(--weight-extrabold);
  text-align: center;
  margin-bottom: var(--space-sm);
}
.demo-access-card p {
  font-size: var(--text-sm);
  color: var(--color-text-light);
  text-align: center;
  line-height: var(--leading-relaxed);
  margin-bottom: var(--space-xl);
}
.demo-hint {
  background: var(--color-light-blue);
  border: 1px solid rgba(var(--color-primary-rgb), 0.15);
  border-radius: var(--radius-lg);
  padding: var(--space-md) var(--space-base);
  font-size: var(--text-xs);
  color: var(--color-primary);
  text-align: center;
  margin-top: var(--space-lg);
}
.demo-hint strong { font-weight: var(--weight-bold); }

/* ── Checkbox & Radio ─────────────────────────────────────── */
.form-check {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  cursor: pointer;
}
.form-check input[type="checkbox"],
.form-check input[type="radio"] {
  width: 18px; height: 18px;
  accent-color: var(--color-primary);
  cursor: pointer;
  flex-shrink: 0;
  margin-top: 2px;
}
.form-check__label {
  font-size: var(--text-sm);
  color: var(--color-text-mid);
  line-height: var(--leading-snug);
}

/* ── Responsive ───────────────────────────────────────────── */
@media (max-width: 480px) {
  .form-card { padding: var(--space-lg); }
  .demo-access-card { padding: var(--space-xl) var(--space-lg); }
  .pin-input { width: 56px; height: 64px; font-size: var(--text-xl); }
  .form-group--half { grid-template-columns: 1fr; }
}