/* public/css/drawer.css — Drawer (меню)
   — редизайн меню: категории, аккуратные элементы, быстрый доступ
   — оптимизация для любых экранов (вплоть до 280px) и слабых устройств
   — токены: --surface, --surface-2, --border, --text, --muted, --btn-bg, --danger
   — уважает prefers-reduced-motion
*/

/* ===================== Токены ===================== */
:root {
  /* ширина: комфортнее на микроскопических экранах */
  --drawer-width: min(92vw, 360px);
  --drawer-radius: 16px;
  --drawer-shadow: 10px 0 30px rgba(0,0,0,.22);
  --drawer-ease: cubic-bezier(.22, .8, .22, 1);
  --drawer-ease-spring: cubic-bezier(.16, 1, .3, 1);
  --drawer-dur: .38s;
  --drawer-dur-fast: .2s;
  --overlay: rgba(0,0,0,.32);

  /* меню */
  --drawer-item-h: 44px;          /* комфортный hit-area */
  --drawer-item-radius: 12px;
  --drawer-pad-x: 10px;
  --drawer-gap: 8px;
}

/* ===================== Кнопка-бургер ===================== */
.app-header .burger-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  margin-right: 8px;
  transition: filter var(--drawer-dur-fast) ease, transform .1s ease, background-color var(--drawer-dur-fast) ease, box-shadow var(--drawer-dur-fast) ease;
  box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
@media (hover:hover) {
  .app-header .burger-btn:hover { filter: brightness(.98); transform: translateY(-1px); box-shadow: 0 6px 14px rgba(0,0,0,.08); }
}
.app-header .burger-btn:active { transform: translateY(0); filter: brightness(.96); }

/* ===================== Scroll-lock ===================== */
body.drawer-open {
  position: fixed;
  overflow: hidden;
  inset: 0 0 auto 0;
  width: 100%;
}

/* ===================== Контейнер ===================== */
.app-drawer[hidden] { display: none !important; }
.app-drawer {
  position: fixed;
  inset: 0;
  z-index: 9000;
  contain: layout paint;
}

/* ===================== Подложка ===================== */
.app-drawer .drawer-backdrop {
  position: absolute;
  inset: 0;
  background: var(--overlay, rgba(0,0,0,.4));
  border: 0;
  padding: 0;
  opacity: 0;
  transition: opacity var(--drawer-dur) var(--drawer-ease);
  will-change: opacity;
}

/* аккуратный «стеклянный» эффект при поддержке */
@supports (backdrop-filter: blur(8px)) {
  .app-drawer .drawer-backdrop {
    backdrop-filter: blur(6px);
    background: color-mix(in oklab, var(--overlay, rgba(0,0,0,.4)) 85%, transparent);
  }
}
.app-drawer[data-open] .drawer-backdrop { opacity: 1; }

/* ===================== Панель ===================== */
.app-drawer .drawer-panel {
  position: absolute;
  top: 0; left: 0;
  width: var(--drawer-width);
  height: 100%;
  background: var(--surface);
  border-right: 1px solid var(--border);
  box-shadow: var(--drawer-shadow);
  outline: none;
  display: flex;
  flex-direction: column;
  border-top-right-radius: var(--drawer-radius);
  border-bottom-right-radius: var(--drawer-radius);

  transform: translate3d(-104%, 0, 0) scale(.98);
  transition:
    transform var(--drawer-dur) var(--drawer-ease-spring),
    box-shadow var(--drawer-dur-fast) ease,
    background-color var(--drawer-dur-fast) ease,
    border-color var(--drawer-dur-fast) ease;
  will-change: transform;
}
.app-drawer[data-open] .drawer-panel {
  transform: translate3d(0, 0, 0) scale(1);
}

/* лёгкая подсветка кромки */
.app-drawer .drawer-panel::after {
  content: "";
  position: absolute;
  inset: 0 auto 0 0;
  width: 10px;
  pointer-events: none;
  background: linear-gradient(90deg, rgba(255,255,255,.12), transparent);
  opacity: 0;
  transition: opacity var(--drawer-dur) var(--drawer-ease);
}
.app-drawer[data-open] .drawer-panel::after { opacity: .6; }

/* ===================== Шапка панели ===================== */
.drawer-head {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 14px 14px;
  border-bottom: 1px solid var(--border);
}

.drawer-avatar,
img.drawer-avatar {
  flex: 0 0 auto;
  width: var(--drawer-avatar-size, 40px);
  height: var(--drawer-avatar-size, 40px);
  border-radius: 50%;
  overflow: hidden;
  border: 1px solid var(--border);
  background: var(--surface-2);
  object-fit: cover;
  object-position: center;
  display: inline-block;
}
.drawer-avatar img { width: 100%; height: 100%; object-fit: cover; object-position: center; display: block; }

.drawer-user { min-width: 0; }
.drawer-username { font-weight: 800; color: var(--text); }
.drawer-user-muted { color: var(--muted); font-size: .92rem; }

.drawer-close {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  transition: filter var(--drawer-dur-fast) ease, transform .1s ease, box-shadow var(--drawer-dur-fast) ease;
  box-shadow: 0 1px 0 rgba(0,0,0,.04);
}
@media (hover:hover) {
  .drawer-close:hover { filter: brightness(.98); transform: translateY(-1px); box-shadow: 0 6px 14px rgba(0,0,0,.08); }
}
.drawer-close:active { transform: translateY(0); filter: brightness(.96); }

/* ===================== Навигация ===================== */
.drawer-nav {
  padding: 10px var(--drawer-pad-x) calc(16px + env(safe-area-inset-bottom, 0px));
  overflow: auto;
  flex: 1 1 auto;
  -webkit-overflow-scrolling: touch;
  overscroll-behavior: contain;
  scrollbar-gutter: stable;
}

/* быстрый доступ */
.drawer-quick{
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
  padding: 8px 2px 10px;
  margin-bottom: 8px;
}
.drawer-quickbtn{
  display: inline-flex;
  align-items: center;
  justify-content: flex-start;
  gap: 10px;
  min-height: var(--drawer-item-h);
  min-width: 0;
  padding: 10px 12px;
  border-radius: 14px;
  text-decoration: none;
  font-weight: 900;
  border: 1px solid var(--border);
  background-color: var(--surface-2); /* fallback */
  background: var(--surface-2);
  color: var(--text);
  box-shadow: 0 1px 0 rgba(0,0,0,.03);
  transition: filter var(--drawer-dur-fast) ease, transform .1s ease, box-shadow var(--drawer-dur-fast) ease;
}
.drawer-quickbtn .ico{
  width: 18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  line-height: 1;
  font-size: 16px;
}
.drawer-quickbtn .txt{
  white-space: normal;
  overflow: visible;
  text-overflow: clip;
}
@media (hover:hover){
  .drawer-quickbtn:hover{ filter: brightness(.985); transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.06); }
}
.drawer-quickbtn:active{ transform: translateY(0); filter: brightness(.97); }

@media (max-width: 360px){
  .drawer-quick{ grid-template-columns: 1fr; }
}

/* блоки */
.drawer-block{
  margin: 10px 0 0;
  padding: 10px 8px 8px;
  border-radius: 16px;
  border: 1px solid var(--border);
  background-color: var(--surface); /* fallback */
  background: color-mix(in srgb, var(--surface) 92%, var(--surface-2));
}
.drawer-block--end{
  margin-top: 12px;
}

/* заголовок блока */
.drawer-title{
  margin: 0 6px 8px;
  padding: 0;
  font-size: .86rem;
  letter-spacing: .04em;
  font-weight: 950;
  color: var(--muted);
  text-transform: uppercase;
}

/* список меню */
.drawer-menu{
  list-style: none;
  padding: 0;
  margin: 0;
}

/* пункт */
.drawer-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: var(--drawer-item-h);
  padding: 10px 12px;
  margin: 6px 4px;
  border-radius: var(--drawer-item-radius);
  text-decoration: none;
  color: var(--text);
  border: 1px solid transparent;
  background-color: transparent; /* fallback */
  background: transparent;
  font-weight: 820;
  transition: filter var(--drawer-dur-fast) ease, transform .1s ease, background-color var(--drawer-dur-fast) ease, border-color var(--drawer-dur-fast) ease, box-shadow var(--drawer-dur-fast) ease;
}
.drawer-item .drawer-ico{
  width: 22px;
  flex: 0 0 22px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  opacity: .95;
}
.drawer-item .drawer-txt{
  min-width: 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (hover:hover){
  .drawer-item:hover{
    background-color: var(--surface-2); /* fallback */
    background: var(--surface-2);
    border-color: var(--border);
    transform: translateY(-1px);
    box-shadow: 0 10px 20px rgba(0,0,0,.06);
  }
}
.drawer-item:active{
  transform: translateY(0);
  filter: brightness(.98);
}

/* текущая страница */
.drawer-item[aria-current="page"]{
  background-color: var(--surface-2); /* fallback */
  background:
    linear-gradient(
      180deg,
      color-mix(in srgb, var(--btn-bg, #3b82f6) 16%, var(--surface)),
      color-mix(in srgb, var(--btn-bg, #3b82f6) 10%, var(--surface-2))
    );
  border-color: color-mix(in srgb, var(--btn-bg, #3b82f6) 40%, var(--border));
  box-shadow: 0 10px 22px rgba(0,0,0,.08);
}
.drawer-item[aria-current="page"] .drawer-txt{ font-weight: 950; }

/* опасная кнопка (выход) */
.drawer-item--danger{
  width: 100%;
  cursor: pointer;
  justify-content: flex-start;
  color: #fff;
  background: var(--danger);
  border-color: transparent;
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
}
@media (hover:hover){
  .drawer-item--danger:hover{
    filter: brightness(.98);
    transform: translateY(-1px);
  }
}
.drawer-item--danger:active{ transform: translateY(0); filter: brightness(.96); }

.drawer-form{ margin: 0; }

/* Фокус */
.drawer-panel .drawer-item:focus-visible,
.drawer-panel .drawer-quickbtn:focus-visible,
.drawer-panel .drawer-close:focus-visible {
  outline: 3px solid var(--focus-ring, var(--btn-bg));
  outline-offset: 3px;
  box-shadow: 0 0 0 2px color-mix(in oklab, var(--focus-ring, var(--btn-bg)) 22%, transparent);
  transition: box-shadow var(--drawer-dur-fast) ease;
}

/* ===================== Анимация появления (только блоки, чтобы не грузить слабые устройства) ===================== */
@keyframes fadeSlideIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}
.app-drawer[data-open] .drawer-quick,
.app-drawer[data-open] .drawer-block {
  animation: fadeSlideIn .26s var(--drawer-ease) both;
}
.app-drawer[data-open] .drawer-quick { animation-delay: 20ms; }
.app-drawer[data-open] .drawer-block:nth-of-type(1) { animation-delay: 40ms; }
.app-drawer[data-open] .drawer-block:nth-of-type(2) { animation-delay: 60ms; }
.app-drawer[data-open] .drawer-block:nth-of-type(3) { animation-delay: 80ms; }
.app-drawer[data-open] .drawer-block:nth-of-type(4) { animation-delay: 100ms; }

/* ===================== Prefers-reduced-motion ===================== */
@media (prefers-reduced-motion: reduce) {
  .app-drawer .drawer-backdrop,
  .app-drawer .drawer-panel,
  .app-drawer[data-open] .drawer-quick,
  .app-drawer[data-open] .drawer-block,
  .drawer-item,
  .drawer-quickbtn,
  .drawer-close,
  .app-header .burger-btn {
    transition: none !important;
    animation: none !important;
  }
  .app-drawer .drawer-panel { transform: translateX(0) !important; }
}

/* ===================== High-contrast (Windows) ===================== */
@media (forced-colors: active) {
  .drawer-item,
  .drawer-quickbtn,
  .drawer-close,
  .app-header .burger-btn {
    border: 1px solid CanvasText;
    forced-color-adjust: none;
  }
}

/* ===================== Скроллбар ===================== */
.drawer-nav::-webkit-scrollbar { width: 10px; height: 10px; }
.drawer-nav::-webkit-scrollbar-thumb { background: var(--border); border-radius: 8px; }
.drawer-nav::-webkit-scrollbar-track { background: transparent; }

/* ===================== Правый сайдбар (если когда-нибудь пригодится) ===================== */
.app-drawer.drawer--right .drawer-panel {
  left: auto; right: 0;
  border-right: 0; border-left: 1px solid var(--border);
  box-shadow: -10px 0 30px rgba(0,0,0,.22);
  transform: translate3d(104%, 0, 0) scale(.98);
}
.app-drawer.drawer--right[data-open] .drawer-panel { transform: translate3d(0,0,0) scale(1); }
.app-drawer.drawer--right .drawer-panel::after {
  inset: 0 0 0 auto;
  background: linear-gradient(270deg, rgba(255,255,255,.12), transparent);
}

:root { --drawer-edge-size: 24px; }