/* =========================================================
   РЦОИ · Мобильное меню — стили
   Подключается в public-header.php после videos.css
   ========================================================= */

/* ============ КНОПКА-ГАМБУРГЕР ============ */
.mobile-burger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--ink-2);
  border: 1px solid var(--border);
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
  padding: 0;
  transition: .25s cubic-bezier(.22,1,.36,1);
  flex-shrink: 0;
}

[data-theme="dark"] .mobile-burger {
  background: var(--surface-2);
}

.mobile-burger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text-2);
  border-radius: 2px;
  transition: .3s cubic-bezier(.34,1.56,.64,1);
  transform-origin: center;
}

.mobile-burger:hover {
  border-color: var(--border-2);
  transform: translateY(-1px);
  box-shadow: var(--sh-sm);
}

.mobile-burger.open {
  background: var(--grad-brand);
  border-color: transparent;
}
.mobile-burger.open span {
  background: #fff;
}
.mobile-burger.open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.mobile-burger.open span:nth-child(2) {
  opacity: 0;
  transform: scaleX(0);
}
.mobile-burger.open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* ============ ПОКАЗ НА МОБИЛЬНЫХ ============ */
@media (max-width: 900px) {
  .mobile-burger { display: flex; }
  .header-nav { display: none; }
  .cmd-btn { display: none; }
}

/* ============ ПАНЕЛЬ МЕНЮ ============ */
.mobile-panel {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: rgba(8,14,31,.55);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s cubic-bezier(.22,1,.36,1), visibility .3s;
  overflow: hidden;
}

.mobile-panel.open {
  opacity: 1;
  visibility: visible;
}

.mobile-panel-inner {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: 100%;
  max-width: 420px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  transition: transform .4s cubic-bezier(.22,1,.36,1);
  overflow: hidden;
  will-change: transform;
}

.mobile-panel.open .mobile-panel-inner {
  transform: translateX(0);
}

@media (max-width: 480px) {
  .mobile-panel-inner { max-width: 100%; }
}

/* ============ ШАПКА ПАНЕЛИ ============ */
.mobile-panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
  background: linear-gradient(180deg, var(--surface), var(--surface-2));
}

.mobile-panel-brand {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -.02em;
  color: var(--text);
}

.mobile-panel-close {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  background: var(--ink-2);
  border: 1px solid var(--border);
  color: var(--text-2);
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: .25s cubic-bezier(.22,1,.36,1);
  font-size: 16px;
  padding: 0;
  font-family: inherit;
}

[data-theme="dark"] .mobile-panel-close {
  background: var(--surface-2);
}

.mobile-panel-close:hover {
  background: rgba(239,68,68,.1);
  color: #ef4444;
  border-color: rgba(239,68,68,.3);
  transform: rotate(90deg);
}

/* ============ ПОИСК ============ */
.mobile-panel-search {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  margin: 12px 16px;
  background: var(--ink-2);
  border: 1px solid var(--border);
  border-radius: 12px;
  flex-shrink: 0;
  transition: .25s cubic-bezier(.22,1,.36,1);
}

[data-theme="dark"] .mobile-panel-search {
  background: var(--surface-2);
}

.mobile-panel-search:focus-within {
  border-color: var(--acc-1);
  box-shadow: 0 0 0 3px rgba(37,99,235,.1);
}

.mobile-panel-search svg {
  width: 16px;
  height: 16px;
  color: var(--text-3);
  flex-shrink: 0;
  transition: color .25s;
}

.mobile-panel-search:focus-within svg {
  color: var(--acc-1);
}

.mobile-panel-search input {
  flex: 1;
  border: none;
  background: transparent;
  outline: none;
  font-family: inherit;
  font-size: 15px;
  color: var(--text);
  min-width: 0;
}

.mobile-panel-search input::placeholder {
  color: var(--text-3);
}

/* ============ ТЕЛО ============ */
.mobile-panel-body {
  flex: 1;
  overflow-y: auto;
  padding: 8px 12px 24px;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
}

.mobile-panel-body::-webkit-scrollbar {
  width: 4px;
}
.mobile-panel-body::-webkit-scrollbar-track {
  background: transparent;
}
.mobile-panel-body::-webkit-scrollbar-thumb {
  background: var(--border-2);
  border-radius: 4px;
}

/* ============ ПУНКТЫ МЕНЮ ============ */
.mobile-panel-link,
.mobile-panel-trigger {
  display: block;
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text-2);
  text-decoration: none;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: inherit;
  transition: .2s cubic-bezier(.22,1,.36,1);
  line-height: 1.4;
}

.mobile-panel-link:hover,
.mobile-panel-trigger:hover {
  background: var(--ink-2);
  color: var(--text);
  transform: translateX(3px);
}

[data-theme="dark"] .mobile-panel-link:hover,
[data-theme="dark"] .mobile-panel-trigger:hover {
  background: var(--surface-2);
}

.mobile-panel-link.active {
  background: linear-gradient(90deg, rgba(37,99,235,.08), transparent);
  color: var(--acc-1);
}

/* ============ ГРУППЫ С ПОДМЕНЮ ============ */
.mobile-panel-group {
  margin-bottom: 4px;
}

.mobile-panel-trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  position: relative;
}

.mobile-panel-trigger .chev {
  transition: transform .3s cubic-bezier(.22,1,.36,1);
  font-size: 12px;
  color: var(--text-3);
  flex-shrink: 0;
}

.mobile-panel-group.open .mobile-panel-trigger {
  background: var(--ink-2);
  color: var(--text);
  border-left: 3px solid var(--acc-1);
  padding-left: 13px;
}

[data-theme="dark"] .mobile-panel-group.open .mobile-panel-trigger {
  background: var(--surface-2);
}

.mobile-panel-group.open .mobile-panel-trigger .chev {
  transform: rotate(180deg);
  color: var(--acc-1);
}

/* ============ ПОДМЕНЮ ============ */
.mobile-panel-sub {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s cubic-bezier(.22,1,.36,1);
  padding-left: 8px;
  margin-top: 2px;
}

.mobile-panel-group.open .mobile-panel-sub {
  max-height: 1000px;
}

.mobile-panel-sub a {
  display: block;
  padding: 11px 16px;
  margin: 2px 0;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-2);
  text-decoration: none;
  transition: .15s cubic-bezier(.22,1,.36,1);
  border-left: 2px solid transparent;
  line-height: 1.35;
}

.mobile-panel-sub a:hover {
  background: var(--ink-2);
  color: var(--text);
  border-left-color: var(--acc-1);
  transform: translateX(2px);
}

.mobile-panel-sub a.active {
  background: linear-gradient(90deg, rgba(37,99,235,.08), transparent);
  color: var(--acc-1);
  border-left-color: var(--acc-1);
  font-weight: 600;
}

[data-theme="dark"] .mobile-panel-sub a:hover {
  background: var(--surface-2);
}

/* ============ УВЕЛИЧЕННЫЕ ТАП-ЗОНЫ ============ */
@media (max-width: 900px) {
  .mobile-panel-link,
  .mobile-panel-trigger {
    min-height: 48px;
  }
  .mobile-panel-sub a {
    min-height: 44px;
  }
}

/* ============ АНИМАЦИЯ ПОЯВЛЕНИЯ ПУНКТОВ ============ */
.mobile-panel.open .mobile-panel-body > * {
  animation: mobileSlide .4s cubic-bezier(.22,1,.36,1) both;
}

.mobile-panel.open .mobile-panel-body > *:nth-child(1) { animation-delay: .05s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(2) { animation-delay: .08s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(3) { animation-delay: .11s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(4) { animation-delay: .14s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(5) { animation-delay: .17s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(6) { animation-delay: .2s; }
.mobile-panel.open .mobile-panel-body > *:nth-child(n+7) { animation-delay: .23s; }

@keyframes mobileSlide {
  from {
    opacity: 0;
    transform: translateX(12px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ============ ПЛАНШЕТ ============ */
@media (max-width: 900px) and (min-width: 481px) {
  .mobile-panel-inner {
    max-width: 380px;
  }
}

/* ============ HOVER DISABLED (touch) ============ */
@media (hover: none) {
  .mobile-panel-link:hover,
  .mobile-panel-trigger:hover,
  .mobile-panel-sub a:hover {
    transform: none;
    background: var(--ink-2);
    color: var(--text);
  }
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion: reduce) {
  .mobile-panel,
  .mobile-panel-inner,
  .mobile-panel-body > * {
    transition: none !important;
    animation: none !important;
  }
}