/* public/css/drawer.css — улучшенный Drawer
   — плавная анимация, «пружинящее» открытие, стеклянная подложка
   — берёт цвета из существующих токенов: --surface, --surface-2, --border, --text, --muted, --btn-bg, --danger
   — уважает prefers-reduced-motion
*/

/* ===================== Токены (дефолты можно переопределить в теме) ===================== */
:root {
  --drawer-width: min(86vw, 340px);
  --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);
}

/* ===================== 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);
}
.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 слева при открытии */
.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);
}
.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 и содержимое ===================== */
.drawer-nav {
  padding: 8px 6px 16px;
  overflow: auto;
  flex: 1 1 auto;
  scrollbar-gutter: stable;
}

.drawer-link {
  display: block;
  padding: 12px 14px;
  margin: 4px 8px;
  border-radius: 12px;
  color: var(--text);
  text-decoration: none;
  border: 1px solid var(--border);
  background: var(--surface-2);
  font-weight: 750;
  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;
  box-shadow: 0 1px 0 rgba(0,0,0,.03);
}
.drawer-link:hover { filter: brightness(.985); transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.06); }
.drawer-link:active { transform: translateY(0); filter: brightness(.97); }
.drawer-link.danger { color: #fff; background: var(--danger); border-color: transparent; }

.drawer-sep {
  border: 0; border-top: 1px solid var(--border);
  margin: 12px 12px;
  opacity: .9;
}

.drawer-form { margin: 0; }

/* Фокус */
.drawer-panel .drawer-link: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;
}

/* Заголовок секции */
.drawer-section {
  margin: 12px 12px 6px;
  padding: 0;
  font-size: .92rem;
  letter-spacing: .02em;
  font-weight: 900;
  color: var(--muted);
  text-transform: uppercase;
}

/* Быстрые действия (пилюли) */
.drawer-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding: 10px 12px 6px;
}
.drawer-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 800;
  border: 1px solid var(--border);
  background: var(--surface-2);
  color: var(--text);
  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,.03);
}
.drawer-pill:hover { filter: brightness(.985); transform: translateY(-1px); box-shadow: 0 8px 18px rgba(0,0,0,.06); }

/* Списки */
.drawer-list { list-style: none; padding: 0; margin: 0 0 6px; }
.drawer-list li { margin: 0; }

/* ===================== Анимация появления пунктов при открытии ===================== */
@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.app-drawer[data-open] .drawer-nav > * {
  animation: fadeSlideIn .34s var(--drawer-ease) both;
}
.app-drawer[data-open] .drawer-nav > *:nth-child(1) { animation-delay: 20ms; }
.app-drawer[data-open] .drawer-nav > *:nth-child(2) { animation-delay: 40ms; }
.app-drawer[data-open] .drawer-nav > *:nth-child(3) { animation-delay: 60ms; }
.app-drawer[data-open] .drawer-nav > *:nth-child(4) { animation-delay: 80ms; }
.app-drawer[data-open] .drawer-nav > *:nth-child(5) { animation-delay: 100ms; }

/* ===================== Prefers-reduced-motion ===================== */
@media (prefers-reduced-motion: reduce) {
  .app-drawer .drawer-backdrop,
  .app-drawer .drawer-panel,
  .app-drawer[data-open] .drawer-nav > * {
    transition: none !important;
    animation: none !important;
  }
  .app-drawer .drawer-panel {
    transform: translateX(0) !important;
  }
}

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

/* ===================== Микро-улучшения скролла и физики ===================== */
.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; }