/* premium.css - shared design-system utilities for Account/auth-style pages.
   Tokens (colors, radii, shadows) live in site.css under :root.--premium-*.
   This file adds reusable classes (cards, inputs, buttons, alerts) that consume those tokens.
   Page-specific tweaks may still override class properties locally. */

:root {
  --lg-accent: var(--premium-primary, #5b3df5);
  --lg-accent-dark: var(--premium-primary-dark, #4a2fe0);
  --lg-accent-light: var(--premium-primary-light, #7b5ffa);
  --lg-danger: #ef4444;
  --lg-success: #16a34a;
  --lg-warning: #f59e0b;
  --lg-info: #0ea5e9;
  --lg-border: var(--premium-border, #e4e9f5);
  --lg-muted: var(--premium-muted, #606a7f);
  --lg-text: var(--premium-text, #171a25);
  --lg-bg: #f8fafc;
  --lg-surface: var(--premium-surface, #ffffff);
  --lg-radius-sm: 8px;
  --lg-radius-md: 10px;
  --lg-radius-lg: 14px;
  --lg-radius-xl: 20px;
  --lg-shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.07), 0 20px 60px -10px rgba(91, 61, 245, 0.12);
  --lg-shadow-btn: 0 4px 14px rgba(91, 61, 245, 0.35);
  --lg-shadow-btn-hover: 0 6px 20px rgba(91, 61, 245, 0.45);
  --lg-transition: 0.18s ease;
}

/* ---------- Layout ---------- */
.lg-wrap {
  min-height: calc(100vh - 200px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem 1rem;
  background: var(--lg-bg);
}

.lg-card {
  width: 100%;
  max-width: 460px;
  background: var(--lg-surface);
  border-radius: var(--lg-radius-xl);
  box-shadow: var(--lg-shadow-card);
  padding: 2.5rem 2.5rem 2rem;
  animation: lg-fade-in 0.35s ease;
}

.lg-card--wide   { max-width: 640px; }
.lg-card--xwide  { max-width: 880px; }
.lg-card--narrow { max-width: 380px; }

@keyframes lg-fade-in {
  from { opacity: 0; transform: translateY(14px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ---------- Brand / title ---------- */
.lg-logo {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--lg-accent) 0%, var(--lg-accent-light) 100%);
  border-radius: 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.35rem;
  margin-bottom: 1.35rem;
  box-shadow: 0 6px 18px rgba(91, 61, 245, 0.32);
}

.lg-title {
  font-size: 1.55rem;
  font-weight: 800;
  color: var(--lg-text);
  margin-bottom: 0.25rem;
  letter-spacing: -0.01em;
}

.lg-sub {
  font-size: 0.9rem;
  color: var(--lg-muted);
  margin-bottom: 1.9rem;
}

.lg-sub strong { color: var(--lg-text); }

/* ---------- Form fields ---------- */
.lg-label {
  font-size: 0.8rem;
  font-weight: 600;
  color: #475569;
  display: block;
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.lg-input {
  width: 100%;
  padding: 0.7rem 0.95rem;
  border: 1.5px solid var(--lg-border);
  border-radius: var(--lg-radius-md);
  font-size: 0.95rem;
  color: var(--lg-text);
  background: #fff;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.lg-input:focus {
  border-color: var(--lg-accent);
  box-shadow: 0 0 0 3px rgba(91, 61, 245, 0.12);
}

.lg-input.is-invalid {
  border-color: var(--lg-danger);
}

.lg-input:disabled,
.lg-input[readonly] {
  background: #f1f5f9;
  color: var(--lg-muted);
  cursor: not-allowed;
}

select.lg-input {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml;charset=US-ASCII,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 12 8'%3E%3Cpath fill='none' stroke='%2394a3b8' stroke-width='1.5' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.9rem center;
  background-size: 0.7rem;
  padding-right: 2.3rem;
}

textarea.lg-input {
  min-height: 110px;
  resize: vertical;
}

.lg-input-icon {
  position: relative;
}

.lg-input-icon i.lead,
.lg-input-icon .lg-input-leading {
  position: absolute;
  left: 0.9rem;
  top: 50%;
  transform: translateY(-50%);
  color: var(--lg-muted);
  font-size: 0.92rem;
  pointer-events: none;
}

.lg-input-icon .lg-input {
  padding-left: 2.4rem;
}

.pw-wrap { position: relative; }

.pw-toggle {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  color: var(--lg-muted);
  cursor: pointer;
  padding: 0;
  font-size: 0.95rem;
}

.pw-toggle:hover { color: var(--lg-accent); }

.mb-field { margin-bottom: 1.05rem; }

/* ---------- Validation feedback ---------- */
.field-error {
  font-size: 0.78rem;
  color: var(--lg-danger);
  margin-top: 0.3rem;
  display: flex;
  align-items: center;
  gap: 4px;
}

.field-error:empty { display: none; }

/* ASP.NET span asp-validation-for emits text-only; keep style consistent */
span.field-error { display: inline-flex; }

/* ---------- Buttons ---------- */
.lg-btn {
  width: 100%;
  padding: 0.82rem;
  border: none;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--lg-accent) 0%, var(--lg-accent-dark) 100%);
  color: #fff;
  font-size: 0.96rem;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--lg-transition);
  box-shadow: var(--lg-shadow-btn);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  text-decoration: none;
}

.lg-btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--lg-shadow-btn-hover);
  color: #fff;
}

.lg-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
  box-shadow: var(--lg-shadow-btn);
}

.lg-btn--ghost {
  background: transparent;
  color: var(--lg-accent);
  border: 1.5px solid var(--lg-border);
  box-shadow: none;
}

.lg-btn--ghost:hover {
  background: rgba(91, 61, 245, 0.06);
  color: var(--lg-accent-dark);
  box-shadow: none;
  border-color: var(--lg-accent);
}

.lg-btn--danger {
  background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
  box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.lg-btn--danger:hover {
  box-shadow: 0 6px 20px rgba(239, 68, 68, 0.45);
}

.lg-btn--sm {
  width: auto;
  padding: 0.5rem 1rem;
  font-size: 0.85rem;
  border-radius: var(--lg-radius-md);
}

/* ---------- Helper text / nav links ---------- */
.lg-signup-link {
  text-align: center;
  font-size: 0.88rem;
  color: var(--lg-muted);
  margin-top: 1.2rem;
}

.lg-signup-link a {
  color: var(--lg-accent);
  font-weight: 600;
  text-decoration: none;
}

.lg-signup-link a:hover { text-decoration: underline; }

.lg-forgot {
  color: var(--lg-accent);
  font-weight: 600;
  font-size: 0.85rem;
  text-decoration: none;
}

.lg-forgot:hover { text-decoration: underline; color: var(--lg-accent-dark); }

.lg-resend {
  text-align: center;
  font-size: 0.85rem;
  color: var(--lg-muted);
  margin-top: 1.2rem;
}

.lg-resend button {
  background: none;
  border: none;
  color: var(--lg-accent);
  font-weight: 600;
  cursor: pointer;
  padding: 0;
}

.lg-resend button:disabled {
  color: var(--lg-muted);
  cursor: not-allowed;
}

/* ---------- OTP segmented input ---------- */
.otp-row {
  display: flex;
  gap: 0.55rem;
  justify-content: space-between;
  margin-bottom: 1.2rem;
}

.otp-cell {
  width: 3rem;
  height: 3.4rem;
  border: 1.5px solid var(--lg-border);
  border-radius: var(--lg-radius-md);
  text-align: center;
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--lg-text);
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}

.otp-cell:focus {
  border-color: var(--lg-accent);
  box-shadow: 0 0 0 3px rgba(91, 61, 245, 0.12);
}

.otp-cell.is-invalid {
  border-color: var(--lg-danger);
}

/* ---------- Inline alerts (consistent with Bootstrap but premium-styled) ---------- */
.lg-alert {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  padding: 0.65rem 0.85rem;
  margin-bottom: 1rem;
  border-radius: var(--lg-radius-md);
  font-size: 0.85rem;
  font-weight: 600;
  border: 1px solid transparent;
}

.lg-alert--error   { background: #fef2f2; color: #991b1b; border-color: #fecaca; }
.lg-alert--success { background: #f0fdf4; color: #166534; border-color: #bbf7d0; }
.lg-alert--warning { background: #fffbeb; color: #92400e; border-color: #fde68a; }
.lg-alert--info    { background: #eff6ff; color: #1e40af; border-color: #bfdbfe; }

/* ---------- Row between (checkbox + link) ---------- */
.lg-row-between {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin: 0.6rem 0 1.2rem;
  font-size: 0.82rem;
}

.lg-check {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  color: #475569;
  cursor: pointer;
  user-select: none;
}

.lg-check input {
  accent-color: var(--lg-accent);
  width: 15px;
  height: 15px;
  cursor: pointer;
}

/* ---------- "or" divider ---------- */
.lg-divider {
  text-align: center;
  font-size: 0.8rem;
  color: var(--lg-muted);
  margin: 1.4rem 0 1.1rem;
  position: relative;
}

.lg-divider::before,
.lg-divider::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 42%;
  height: 1px;
  background: var(--lg-border);
}

.lg-divider::before { left: 0; }
.lg-divider::after  { right: 0; }

/* ---------- Valid state ---------- */
.lg-input.is-valid {
  border-color: var(--lg-success);
}

/* ---------- Responsive ---------- */
@media (max-width: 480px) {
  .lg-card {
    padding: 1.85rem 1.3rem 1.5rem;
    border-radius: 16px;
  }

  .lg-title { font-size: 1.35rem; }

  .otp-cell {
    width: 2.4rem;
    height: 3rem;
    font-size: 1.2rem;
  }
}