/* ============================================================
   WILDZOS — components.css
   Buttons · Inputs · Cards · Digit Input · Toast · Modal
   ============================================================ */

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 10px var(--space-4);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  border-radius: var(--radius-md);
  border: 1px solid transparent;
  cursor: pointer;
  transition: background-color var(--transition-base),
              border-color var(--transition-base),
              color var(--transition-base),
              box-shadow var(--transition-base),
              transform var(--transition-fast);
  white-space: nowrap;
  text-decoration: none;
  user-select: none;
  min-height: 44px;
  position: relative;
}

.btn:active {
  transform: scale(0.98);
}

.btn:disabled,
.btn[aria-disabled="true"] {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

/* Primary */
.btn-primary {
  background-color: #0052cc;
  color: #fff;
  border-color: #0052cc;
}
.btn-primary:hover:not(:disabled) {
  background-color: #0047b3;
  border-color: #0047b3;
}
.btn-primary:active:not(:disabled) {
  background-color: #003d99;
}

/* Secondary (outline) */
.btn-secondary {
  background-color: transparent;
  color: var(--accent);
  border-color: var(--accent);
}
.btn-secondary:hover:not(:disabled) {
  background-color: var(--accent-muted);
}

/* Ghost */
.btn-ghost {
  background-color: transparent;
  color: var(--text);
  border-color: transparent;
}
.btn-ghost:hover:not(:disabled) {
  background-color: var(--border);
}

/* Danger ghost */
.btn-danger {
  background-color: transparent;
  color: var(--danger);
  border-color: transparent;
}
.btn-danger:hover:not(:disabled) {
  background-color: var(--danger-muted);
  border-color: var(--danger);
}

/* Full-width modifier */
.btn-full { width: 100%; }

/* Size variants */
.btn-sm {
  font-size: var(--text-sm);
  padding: 7px var(--space-3);
  min-height: 36px;
  border-radius: var(--radius-sm);
}
.btn-lg {
  font-size: var(--text-md);
  padding: 13px var(--space-6);
  min-height: 52px;
  border-radius: var(--radius-lg);
}

/* Loading state */
.btn.loading {
  color: transparent;
  pointer-events: none;
}
.btn.loading::after {
  content: '';
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid currentColor;
  border-top-color: transparent;
  border-radius: 50%;
  animation: btn-spin 0.6s linear infinite;
  color: inherit;
}
.btn-primary.loading::after { color: rgba(255,255,255,0.7); }
.btn-secondary.loading::after,
.btn-ghost.loading::after { color: var(--accent); }

@keyframes btn-spin {
  to { transform: rotate(360deg); }
}
@media (prefers-reduced-motion: reduce) {
  .btn.loading::after { animation: none; border-top-color: currentColor; opacity: 0.5; }
}

/* ── Inputs ────────────────────────────────────────────────── */
.form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.form-label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--text);
  user-select: none;
}

.form-input {
  width: 100%;
  padding: 10px var(--space-3);
  font-family: var(--font-body);
  font-size: var(--text-base);
  color: var(--text);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  min-height: 44px;
  appearance: none;
}

.form-input::placeholder {
  color: var(--muted);
}

.form-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}

/* Error state */
.form-input.is-error,
.form-group.has-error .form-input {
  border-color: var(--danger);
}
.form-input.is-error:focus,
.form-group.has-error .form-input:focus {
  box-shadow: 0 0 0 3px var(--danger-muted);
}

.form-error {
  display: none;
  font-size: var(--text-xs);
  color: var(--danger);
  gap: var(--space-1);
  align-items: center;
}
.form-group.has-error .form-error {
  display: flex;
}
.form-error svg {
  flex-shrink: 0;
  width: 12px;
  height: 12px;
}

/* Hint text */
.form-hint {
  font-size: var(--text-xs);
  color: var(--muted);
}

/* Password field wrapper */
.input-password-wrap {
  position: relative;
}
.input-password-wrap .form-input {
  padding-right: 44px;
}
.password-toggle {
  position: absolute;
  right: 0;
  top: 0;
  bottom: 0;
  width: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  cursor: pointer;
  transition: color var(--transition-base);
  border: none;
  background: none;
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.password-toggle:hover { color: var(--text); }

/* Checkbox */
.form-checkbox-wrap {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  cursor: pointer;
  user-select: none;
}
.form-checkbox {
  appearance: none;
  width: 18px;
  height: 18px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-xs);
  background-color: var(--surface);
  cursor: pointer;
  flex-shrink: 0;
  transition: background-color var(--transition-base), border-color var(--transition-base);
  position: relative;
}
.form-checkbox:checked {
  background-color: var(--accent);
  border-color: var(--accent);
}
.form-checkbox:checked::after {
  content: '';
  position: absolute;
  inset: 3px;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 10 8' fill='none'%3E%3Cpath d='M1 4l2.5 3L9 1' stroke='white' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: contain;
  background-repeat: no-repeat;
  background-position: center;
}
.form-checkbox:focus-visible {
  outline: 2px solid var(--muted);
  outline-offset: 2px;
}
.form-checkbox-label {
  font-size: var(--text-sm);
  color: var(--muted);
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}

.card-sm {
  padding: var(--space-4);
  border-radius: var(--radius-md);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
  padding-bottom: var(--space-4);
  border-bottom: 1px solid var(--border);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--text);
}

/* ── Digit Input (6-box verification code) ─────────────────── */
.digit-input-group {
  display: flex;
  gap: var(--space-2);
  justify-content: center;
}

.digit-input {
  width: 52px;
  height: 60px;
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 600;
  text-align: center;
  color: var(--text);
  background-color: var(--surface);
  border: 1.5px solid var(--border);
  border-radius: var(--radius-md);
  outline: none;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  caret-color: var(--accent);
  /* Hide spin buttons */
  -moz-appearance: textfield;
}
.digit-input::-webkit-outer-spin-button,
.digit-input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}
.digit-input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-muted);
}
.digit-input.is-filled {
  border-color: var(--accent);
  color: var(--accent);
}
.digit-input.is-error {
  border-color: var(--danger);
  color: var(--danger);
}
.digit-input.is-error:focus {
  box-shadow: 0 0 0 3px var(--danger-muted);
}
.digit-input.shake {
  animation: digit-shake 0.4s ease;
}

@keyframes digit-shake {
  0%, 100% { transform: translateX(0); }
  20%       { transform: translateX(-6px); }
  40%       { transform: translateX(6px); }
  60%       { transform: translateX(-4px); }
  80%       { transform: translateX(4px); }
}
@media (prefers-reduced-motion: reduce) {
  .digit-input.shake { animation: none; }
}

@media (max-width: 400px) {
  .digit-input {
    width: 44px;
    height: 52px;
    font-size: var(--text-xl);
  }
}

/* ── Toast Notification ────────────────────────────────────── */
#toast-container {
  position: fixed;
  top: max(var(--space-4), env(safe-area-inset-top));
  right: var(--space-4);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  z-index: var(--z-toast);
  pointer-events: none;
  max-width: calc(100vw - var(--space-8));
}

.toast {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-3) var(--space-4);
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  min-width: 280px;
  max-width: 360px;
  pointer-events: auto;

  /* Hidden state */
  opacity: 0;
  transform: translateX(calc(100% + var(--space-4)));
  transition: opacity 300ms ease, transform 300ms ease;
}

.toast.toast-show {
  opacity: 1;
  transform: translateX(0);
}

.toast.toast-hide {
  opacity: 0;
  transform: translateX(calc(100% + var(--space-4)));
}

@media (prefers-reduced-motion: reduce) {
  .toast { transform: none; transition: opacity 200ms ease; }
}

.toast-icon {
  flex-shrink: 0;
  width: 20px;
  height: 20px;
  margin-top: 1px;
}
.toast-success .toast-icon { color: var(--success); }
.toast-error   .toast-icon { color: var(--danger); }
.toast-warning .toast-icon { color: var(--warning); }
.toast-info    .toast-icon { color: var(--accent); }

.toast-body { flex: 1; min-width: 0; }
.toast-title {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--text);
  line-height: var(--leading-snug);
}
.toast-message {
  font-size: var(--text-xs);
  color: var(--muted);
  margin-top: 2px;
  line-height: var(--leading-snug);
}

.toast-close {
  flex-shrink: 0;
  color: var(--muted);
  padding: 2px;
  border-radius: var(--radius-xs);
  transition: color var(--transition-fast);
  margin-left: auto;
}
.toast-close:hover { color: var(--text); }

/* Progress bar */
.toast-progress {
  position: absolute;
  bottom: 0;
  left: 0;
  height: 2px;
  background-color: var(--accent);
  border-radius: 0 0 var(--radius-lg) var(--radius-lg);
  animation: toast-progress 4s linear forwards;
}
.toast-success .toast-progress { background-color: var(--success); }
.toast-error   .toast-progress { background-color: var(--danger); }

@keyframes toast-progress {
  from { width: 100%; }
  to   { width: 0%; }
}
@media (prefers-reduced-motion: reduce) {
  .toast-progress { animation: none; width: 0; }
}

/* ── Modal ─────────────────────────────────────────────────── */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  z-index: var(--z-modal-backdrop);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--space-4);

  opacity: 0;
  transition: opacity 200ms ease;
}
.modal-backdrop.modal-show { opacity: 1; }

.modal {
  background-color: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-xl);
  width: 100%;
  max-width: 440px;
  padding: var(--space-6);
  z-index: var(--z-modal);
  position: relative;

  transform: scale(0.96) translateY(8px);
  transition: transform 250ms ease, opacity 200ms ease;
  opacity: 0;
}
.modal-backdrop.modal-show .modal {
  transform: scale(1) translateY(0);
  opacity: 1;
}

@media (prefers-reduced-motion: reduce) {
  .modal { transform: none; }
}

.modal-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}
.modal-title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 600;
}
.modal-close {
  color: var(--muted);
  padding: var(--space-1);
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background-color var(--transition-fast);
  line-height: 0;
}
.modal-close:hover {
  color: var(--text);
  background-color: var(--border);
}
.modal-body {
  color: var(--muted);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
}
.modal-footer {
  display: flex;
  gap: var(--space-3);
  justify-content: flex-end;
  margin-top: var(--space-6);
}

/* ── Divider ───────────────────────────────────────────────── */
.divider {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  color: var(--muted);
  font-size: var(--text-xs);
}
.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--border);
}

/* ── Link button (inline text link style) ──────────────────── */
.link-btn {
  background: none;
  border: none;
  color: var(--accent);
  font-size: inherit;
  font-family: inherit;
  cursor: pointer;
  padding: 0;
  text-decoration: none;
  transition: opacity var(--transition-fast);
}
.link-btn:hover { text-decoration: underline; }
.link-btn:disabled { opacity: 0.5; cursor: default; }
.link-btn:disabled:hover { text-decoration: none; }

/* ── Auth layout ───────────────────────────────────────────── */
.auth-layout {
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100dvh;
  min-height: 100vh;
}

@media (min-width: 768px) {
  .auth-layout {
    grid-template-columns: 1fr 420px;
  }
}

@media (min-width: 1024px) {
  .auth-layout {
    grid-template-columns: 1fr 480px;
  }
}

.auth-hero {
  position: relative;
  background: linear-gradient(135deg, #0D1117 0%, #0F1C33 50%, #0D1B40 100%);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: flex-end;
  padding: var(--space-12) var(--space-10);
  min-height: 280px;
}

@media (min-width: 768px) {
  .auth-hero {
    min-height: 100dvh;
    min-height: 100vh;
    justify-content: center;
    padding: var(--space-16) var(--space-12);
  }
}

.auth-hero-content {
  position: relative;
  z-index: 1;
}

.auth-hero-logo {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-8);
}

.auth-hero-wordmark {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: #fff;
  letter-spacing: -0.02em;
}

.auth-hero-tagline {
  font-size: var(--text-lg);
  color: rgba(255,255,255,0.6);
  line-height: var(--leading-relaxed);
  max-width: 36ch;
}

.auth-hero-tagline strong {
  color: rgba(255,255,255,0.9);
  font-weight: 500;
}

/* Panel */
.auth-panel {
  background-color: var(--surface);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: var(--space-8) var(--space-6);
  border-left: 1px solid var(--border);
}

@media (min-width: 768px) {
  .auth-panel {
    padding: var(--space-12) var(--space-10);
    overflow-y: auto;
  }
}

.auth-panel-inner {
  width: 100%;
  max-width: 360px;
  margin: 0 auto;
}

.auth-panel-title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--text);
  margin-bottom: var(--space-1);
  letter-spacing: -0.02em;
}

.auth-panel-subtitle {
  font-size: var(--text-base);
  color: var(--muted);
  margin-bottom: var(--space-6);
  line-height: var(--leading-relaxed);
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}

.auth-footer-text {
  text-align: center;
  font-size: var(--text-sm);
  color: var(--muted);
  margin-top: var(--space-6);
}

/* Step indicators (for multi-step auth flows) */
.auth-steps {
  display: flex;
  gap: var(--space-1);
  margin-bottom: var(--space-6);
}
.auth-step-dot {
  height: 3px;
  border-radius: 2px;
  flex: 1;
  background-color: var(--border);
  transition: background-color var(--transition-base);
}
.auth-step-dot.active {
  background-color: var(--accent);
}
.auth-step-dot.done {
  background-color: var(--success);
}

/* Resend / countdown */
.resend-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  color: var(--muted);
}
.resend-countdown {
  font-variant-numeric: tabular-nums;
  color: var(--accent);
  font-weight: 500;
  min-width: 3ch;
}