/**
 * CourierShop UI Kit — кнопки, карточки, модалки, empty states, микроанимации.
 * Токены берут цвет из theme.css / :root.
 */

:root {
  --ui-radius: 16px;
  --ui-radius-sm: 12px;
  --ui-radius-pill: 999px;
  --ui-ease: cubic-bezier(0.22, 1, 0.36, 1);
  --ui-dur: 0.28s;
}

/* ── Buttons ── */
.ui-btn,
.btn.btn-primary,
.btn.btn-secondary,
.btn.btn-ghost,
.btn-topup,
.btn-support-create,
.purchase-renew-btn,
.purchase-manual-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  min-height: 44px;
  padding: 0.7rem 1.2rem;
  border-radius: var(--ui-radius-sm);
  font-weight: 700;
  font-size: 0.9rem;
  line-height: 1.2;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition:
    transform var(--ui-dur) var(--ui-ease),
    box-shadow var(--ui-dur) var(--ui-ease),
    background var(--ui-dur) ease,
    border-color var(--ui-dur) ease,
    color var(--ui-dur) ease;
}

.ui-btn:active,
.btn.btn-primary:active,
.btn-topup:active,
.btn-support-create:active {
  transform: translateY(1px) scale(0.98);
}

.ui-btn--primary,
.btn.btn-primary,
.btn-topup,
.btn-support-create {
  color: #fff;
  background: linear-gradient(135deg, var(--primary, #6366f1), color-mix(in srgb, var(--primary, #6366f1) 70%, #a855f7));
  border-color: color-mix(in srgb, var(--primary, #6366f1) 55%, transparent);
  box-shadow: 0 8px 22px color-mix(in srgb, var(--primary, #6366f1) 28%, transparent);
}

.ui-btn--primary:hover,
.btn.btn-primary:hover,
.btn-topup:hover,
.btn-support-create:hover {
  transform: translateY(-1px);
  filter: brightness(1.05);
}

.ui-btn--ghost,
.btn.btn-ghost,
.btn-ghost {
  color: var(--text-secondary, #cbd5e1);
  background: var(--overlay-soft, rgba(255, 255, 255, 0.04));
  border-color: var(--input-border, rgba(255, 255, 255, 0.1));
}

.ui-btn--ghost:hover,
.btn.btn-ghost:hover,
.btn-ghost:hover {
  color: var(--text-primary, #fff);
  border-color: color-mix(in srgb, var(--primary, #6366f1) 35%, transparent);
  background: color-mix(in srgb, var(--primary, #6366f1) 10%, transparent);
}

.ui-btn--sm,
.btn.btn-sm {
  min-height: 38px;
  padding: 0.5rem 0.95rem;
  font-size: 0.84rem;
}

.ui-btn--lg,
.btn-support-create--lg {
  min-height: 52px;
  padding: 0.85rem 1.45rem;
  font-size: 0.98rem;
  border-radius: 14px;
}

/* ── Cards ── */
.ui-card,
.cabinet-panel,
.purchase-card,
.support-sidebar,
.support-panel,
.balance-checkout-card {
  border-radius: var(--ui-radius);
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.1));
  background: var(--surface-1, rgba(15, 23, 42, 0.65));
  box-shadow: var(--shadow-sm, 0 4px 16px rgba(0, 0, 0, 0.2));
}

.ui-card--interactive:hover,
.purchase-card:hover {
  border-color: color-mix(in srgb, var(--primary, #6366f1) 35%, transparent);
  box-shadow: var(--shadow-md, 0 8px 24px rgba(0, 0, 0, 0.28));
  transform: translateY(-2px);
}

.purchase-card {
  transition:
    transform var(--ui-dur) var(--ui-ease),
    box-shadow var(--ui-dur) var(--ui-ease),
    border-color var(--ui-dur) ease;
}

/* ── Modals ── */
.ui-modal,
.cabinet-modal {
  position: fixed;
  inset: 0;
  z-index: 1200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.ui-modal[hidden],
.cabinet-modal[hidden] {
  display: none !important;
}

.ui-modal-backdrop,
.cabinet-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, 0.62);
  backdrop-filter: blur(8px);
  animation: ui-fade-in 0.22s ease;
}

.ui-modal-dialog,
.cabinet-modal-dialog {
  position: relative;
  width: min(520px, 100%);
  max-height: min(88vh, 900px);
  overflow: auto;
  border-radius: 20px;
  border: 1px solid var(--border-color, rgba(255, 255, 255, 0.12));
  background: var(--surface-3, rgba(15, 23, 42, 0.96));
  box-shadow: var(--shadow-xl, 0 24px 60px rgba(0, 0, 0, 0.45));
  animation: ui-rise 0.32s var(--ui-ease);
}

/* ── Empty states ── */
.ui-empty,
.empty-state,
.gifts-empty,
.tickets-list-empty,
.support-empty,
.deposit-empty,
.referral-empty {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  gap: 0.55rem;
  padding: 2.4rem 1.4rem;
  border-radius: var(--ui-radius);
  border: 1px dashed color-mix(in srgb, var(--primary, #6366f1) 28%, transparent);
  background:
    radial-gradient(ellipse 70% 60% at 50% 0%, color-mix(in srgb, var(--primary, #6366f1) 14%, transparent), transparent 70%),
    var(--overlay-soft, rgba(255, 255, 255, 0.03));
}

.ui-empty.wide,
.empty-state.wide {
  padding: 3rem 1.5rem;
  min-height: 220px;
}

.ui-empty-icon,
.ui-empty > i,
.empty-state > i,
.gifts-empty-icon,
.tickets-list-empty > i {
  display: grid;
  place-items: center;
  width: 64px;
  height: 64px;
  margin-bottom: 0.35rem;
  border-radius: 18px;
  font-size: 1.45rem;
  color: var(--primary, #818cf8);
  background: color-mix(in srgb, var(--primary, #6366f1) 14%, transparent);
  border: 1px solid color-mix(in srgb, var(--primary, #6366f1) 28%, transparent);
  animation: ui-soft-pulse 2.8s ease-in-out infinite;
}

.ui-empty h3,
.gifts-empty h3,
.support-empty h3 {
  margin: 0;
  font-size: 1.15rem;
  color: var(--text-primary, #fff);
}

.ui-empty p,
.empty-state p,
.gifts-empty p,
.tickets-list-empty,
.support-empty p {
  margin: 0;
  max-width: 34ch;
  color: var(--text-secondary, #94a3b8);
  font-size: 0.92rem;
  line-height: 1.5;
}

.ui-empty-actions,
.empty-state .ui-empty-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  justify-content: center;
  margin-top: 0.85rem;
}

.tickets-list-empty {
  margin: 0.75rem;
  gap: 0.75rem;
  color: var(--text-secondary, #94a3b8);
  font-size: 0.9rem;
}

.tickets-list-empty .ui-empty-actions {
  margin-top: 0.35rem;
}

/* ── Micro-animations (2–3 intentional) ── */
@keyframes ui-fade-in {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes ui-rise {
  from {
    opacity: 0;
    transform: translateY(14px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes ui-soft-pulse {
  0%, 100% { transform: scale(1); box-shadow: 0 0 0 0 color-mix(in srgb, var(--primary, #6366f1) 0%, transparent); }
  50% { transform: scale(1.03); box-shadow: 0 0 0 10px color-mix(in srgb, var(--primary, #6366f1) 0%, transparent); }
}

@keyframes ui-fade-up {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.ui-anim-enter {
  animation: ui-fade-up 0.45s var(--ui-ease) both;
}

.purchase-card.ui-anim-enter:nth-child(1) { animation-delay: 0.04s; }
.purchase-card.ui-anim-enter:nth-child(2) { animation-delay: 0.08s; }
.purchase-card.ui-anim-enter:nth-child(3) { animation-delay: 0.12s; }
.purchase-card.ui-anim-enter:nth-child(4) { animation-delay: 0.16s; }
.purchase-card.ui-anim-enter:nth-child(5) { animation-delay: 0.2s; }
.purchase-card.ui-anim-enter:nth-child(6) { animation-delay: 0.24s; }

.cabinet-panel.ui-anim-enter,
.support-page-header.ui-anim-enter,
.product-checkout-bar.ui-anim-enter {
  animation: ui-fade-up 0.5s var(--ui-ease) both;
}

@media (prefers-reduced-motion: reduce) {
  .ui-anim-enter,
  .ui-empty-icon,
  .ui-empty > i,
  .empty-state > i,
  .gifts-empty-icon,
  .tickets-list-empty > i,
  .ui-modal-dialog,
  .cabinet-modal-dialog,
  .ui-modal-backdrop,
  .cabinet-modal-backdrop,
  .purchase-card {
    animation: none !important;
    transition: none !important;
  }
}