/* ====== سایدبار آیکون‌ها ====== */
.icon-sidebar {
  width: 62px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  background: var(--glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
}

.icon-sidebar__top,
.icon-sidebar__middle,
.icon-sidebar__bottom {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
}

.icon-btn {
  width: 42px;
  height: 42px;
  border-radius: 14px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all .3s ease;
  position: relative;
}
.icon-btn svg {
  width: 20px;
  height: 20px;
  fill: currentColor;
  stroke: none;
}
.icon-btn:hover {
  background: var(--glass);
  color: var(--accent);
  transform: translateY(-2px);
}
.icon-btn.active {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 6px 20px rgba(91, 141, 239, 0.45);
}

/* آیکون تغییر تم */
#themeToggle .icon-sun { display: none; }
[data-theme="light"] #themeToggle .icon-moon { display: none; }
[data-theme="light"] #themeToggle .icon-sun  { display: block; }
#themeToggle .icon-sun {
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.avatar {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  cursor: pointer;
  border: 2px solid var(--glass-border);
}

/* ====== پنل Expandable ====== */
.panel {
  width: 0;
  opacity: 0;
  overflow: hidden;
  background: var(--glass-strong);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition:
    width .45s cubic-bezier(.4, 0, .2, 1),
    opacity .3s ease,
    background .6s ease,
    border-color .6s ease;
}
.panel.open {
  width: 340px;
  opacity: 1;
}

.panel__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px;
  border-bottom: 1px solid var(--glass-border);
}
.panel__title {
  font-weight: 700;
  font-size: 16px;
  color: var(--text);
}
.panel__close {
  background: transparent;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 14px;
  padding: 4px 8px;
  border-radius: 8px;
  transition: all .3s ease;
}
.panel__close:hover {
  background: var(--glass);
  color: var(--danger);
}

.panel__body {
  flex: 1;
  overflow-y: auto;
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: thin;
}
.panel__body::-webkit-scrollbar { width: 6px; }
.panel__body::-webkit-scrollbar-thumb {
  background: var(--scroll);
  border-radius: 8px;
}

/* ====== چت ====== */
.chat-messages {
  display: flex;
  flex-direction: column;
  gap: 10px;
  flex: 1;
  padding: 4px;
}
.chat-bubble {
  max-width: 78%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 13.5px;
  line-height: 1.7;
  animation: fadeIn .3s ease;
}
.chat-bubble.me {
  align-self: flex-start;
  background: var(--accent);
  color: #fff;
  border-bottom-right-radius: 4px;
}
.chat-bubble.other {
  align-self: flex-end;
  background: var(--glass);
  color: var(--text);
  border-bottom-left-radius: 4px;
  border: 1px solid var(--glass-border);
}

.chat-input {
  display: flex;
  gap: 8px;
  margin-top: 10px;
}
.chat-input input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}
.chat-input button {
  padding: 0 16px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-weight: 600;
  transition: all .3s ease;
}
.chat-input button:hover { filter: brightness(1.1); }

/* ====== تودو ====== */
.todo-item {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  border-radius: 14px;
  background: var(--glass);
  border: 1px solid var(--glass-border);
  font-size: 13.5px;
  color: var(--text);
  cursor: pointer;
  transition: all .3s ease;
  animation: fadeIn .3s ease;
}
.todo-item:hover {
  transform: translateX(-3px);
  border-color: var(--accent);
}
.todo-check {
  width: 18px;
  height: 18px;
  border-radius: 6px;
  border: 2px solid var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all .3s ease;
}
.todo-item.done .todo-check {
  background: var(--success);
  border-color: var(--success);
  color: #fff;
}
.todo-item.done .todo-text {
  text-decoration: line-through;
  opacity: .55;
}
.todo-time {
  margin-inline-start: auto;
  font-size: 11.5px;
  color: var(--text-muted);
}

.todo-add {
  display: flex;
  gap: 8px;
  margin-top: 8px;
}
.todo-add input {
  flex: 1;
  padding: 10px 14px;
  border-radius: 12px;
  border: 1px solid var(--glass-border);
  background: var(--glass);
  color: var(--text);
  font-family: inherit;
  font-size: 13px;
  outline: none;
}
.todo-add button {
  padding: 0 14px;
  border-radius: 12px;
  border: none;
  background: var(--accent);
  color: #fff;
  cursor: pointer;
  font-family: inherit;
  font-size: 18px;
  line-height: 1;
}

/* ====== انیمیشن ====== */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}