/* 微信群聊室 · 明亮优雅风格 */

:root {
  --green: #07c160;
  --green-deep: #06ad56;
  --bubble-self: #95ec69;
  --bubble-self-text: #103018;
  --ink: #1f2a26;
  --ink-2: #5c6b64;
  --ink-3: #97a5a0;
  --line: #edf1ee;
  --bg-panel: #ffffff;
  --bg-chat: #f6f8f7;
  --amber: #ff8f1f;
  --danger: #e5484d;
  --radius: 14px;
  --shadow-panel: 0 24px 70px rgba(24, 60, 42, 0.12), 0 2px 8px rgba(24, 60, 42, 0.05);
  --ease: cubic-bezier(0.22, 0.8, 0.32, 1);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "PingFang SC",
    "Hiragino Sans GB", "Segoe UI", "Microsoft YaHei", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(7, 193, 96, 0.10), transparent 60%),
    radial-gradient(900px 500px at -10% 110%, rgba(64, 169, 255, 0.10), transparent 60%),
    linear-gradient(180deg, #f4f7f5, #eef3f0);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  -webkit-font-smoothing: antialiased;
}

.hidden { display: none !important; }

/* ---------- 整体面板 ---------- */
.app {
  width: min(880px, 100%);
  height: min(100dvh - 48px, 940px);
  min-height: 520px;
  display: flex;
  flex-direction: column;
  background: var(--bg-panel);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow-panel);
  overflow: hidden;
}

/* ---------- 顶栏 ---------- */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 20px;
  border-bottom: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  flex: none;
}

.brand { display: flex; align-items: center; gap: 12px; min-width: 0; }

.logo {
  width: 42px; height: 42px;
  border-radius: 13px;
  background: linear-gradient(135deg, #12d26d, #07a94f);
  display: flex; align-items: center; justify-content: center;
  box-shadow: 0 6px 16px rgba(7, 193, 96, 0.35);
  flex: none;
}

.titles h1 { margin: 0; font-size: 17px; font-weight: 700; letter-spacing: 0.5px; }
.status-line { margin: 2px 0 0; font-size: 12px; color: var(--ink-3); display: flex; align-items: center; gap: 6px; }
.status-line .sep { opacity: 0.6; }

.dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: #c4ccc8;
  transition: background 0.3s var(--ease);
}
.dot.online { background: var(--green); box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.15); }
.dot.offline { background: var(--danger); box-shadow: 0 0 0 3px rgba(229, 72, 77, 0.12); }

.topbar-actions { display: flex; gap: 8px; flex: none; }

.ghost-btn {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 13px;
  padding: 7px 14px;
  border-radius: 10px;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  font-family: inherit;
}
.ghost-btn:hover { border-color: var(--green); color: var(--green); background: rgba(7, 193, 96, 0.05); }
.ghost-btn:active { transform: scale(0.96); }
.ghost-btn.small { padding: 4px 10px; font-size: 12px; border-radius: 8px; }
.ghost-btn.admin-entry { color: var(--green); border-color: rgba(7, 193, 96, 0.35); background: rgba(7, 193, 96, 0.06); }
.ghost-btn.admin-entry:hover { background: rgba(7, 193, 96, 0.12); }

/* ---------- 管理员条 ---------- */
.admin-bar {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 9px 20px;
  background: linear-gradient(90deg, rgba(7, 193, 96, 0.08), rgba(7, 193, 96, 0.03));
  border-bottom: 1px solid rgba(7, 193, 96, 0.18);
  flex: none;
  animation: slideDown 0.35s var(--ease);
}

.admin-chip {
  font-size: 12.5px; font-weight: 600; color: var(--green-deep);
  background: rgba(7, 193, 96, 0.12);
  padding: 4px 10px; border-radius: 999px;
}

.admin-tip { font-size: 12px; color: var(--ink-3); }

.switch-wrap { display: flex; align-items: center; gap: 8px; cursor: pointer; user-select: none; }
.switch-label { font-size: 13px; color: var(--ink-2); }
.switch { position: relative; display: inline-block; width: 40px; height: 22px; }
.switch input { opacity: 0; width: 0; height: 0; position: absolute; }
.switch i {
  position: absolute; inset: 0;
  background: #d6ddd9; border-radius: 999px;
  transition: background 0.25s var(--ease);
}
.switch i::before {
  content: "";
  position: absolute; top: 2px; left: 2px;
  width: 18px; height: 18px; border-radius: 50%;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.25);
  transition: transform 0.25s var(--ease);
}
.switch input:checked + i { background: var(--danger); }
.switch input:checked + i::before { transform: translateX(18px); }

/* ---------- 聊天区 ---------- */
.chat-area { position: relative; flex: 1; min-height: 0; display: flex; flex-direction: column; }

.pinned-bar {
  display: flex; align-items: center; gap: 10px;
  padding: 9px 20px;
  background: linear-gradient(90deg, #fff8e6, #fffdf6);
  border-bottom: 1px solid #f5e7c2;
  cursor: pointer;
  flex: none;
  animation: slideDown 0.35s var(--ease);
}
.pin-ico { font-size: 15px; }
.pin-body { display: flex; flex-direction: column; min-width: 0; flex: 1; }
.pin-label { font-size: 11px; color: #b58a1b; font-weight: 600; letter-spacing: 1px; }
.pin-text {
  font-size: 13px; color: #6d5a1e;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
}
.pin-x {
  border: none; background: rgba(181, 138, 27, 0.12); color: #9a7a20;
  width: 24px; height: 24px; border-radius: 50%;
  font-size: 16px; line-height: 1; cursor: pointer; flex: none;
  transition: all 0.2s var(--ease);
}
.pin-x:hover { background: rgba(181, 138, 27, 0.25); }

.messages {
  flex: 1;
  overflow-y: auto;
  background: var(--bg-chat);
  padding: 18px 22px 10px;
  scroll-behavior: smooth;
  overscroll-behavior: contain;
}
.messages::-webkit-scrollbar { width: 8px; }
.messages::-webkit-scrollbar-thumb { background: #d7dedb; border-radius: 8px; }
.messages::-webkit-scrollbar-thumb:hover { background: #c2ccc7; }

.empty-state {
  text-align: center; color: var(--ink-3);
  padding: 60px 20px 30px;
  animation: fadeUp 0.5s var(--ease);
}
.empty-emoji { font-size: 44px; margin-bottom: 10px; }
.empty-state p { margin: 4px 0; font-size: 15px; }
.empty-state .empty-sub { font-size: 12.5px; color: #aeb9b4; }

.newmsg-pill {
  position: sticky;
  bottom: 10px;
  left: 50%;
  transform: translateX(-50%);
  border: none;
  background: rgba(31, 42, 38, 0.82);
  color: #fff;
  font-size: 12.5px;
  padding: 7px 16px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
  backdrop-filter: blur(4px);
  z-index: 5;
  font-family: inherit;
  animation: fadeUp 0.25s var(--ease);
}

/* 日期分隔 / 系统消息 */
.day-divider, .sys-line { text-align: center; margin: 14px 0; }
.day-divider span, .sys-line span {
  display: inline-block;
  font-size: 12px;
  color: var(--ink-3);
  background: rgba(0, 0, 0, 0.045);
  padding: 4px 12px;
  border-radius: 999px;
  max-width: 82%;
  animation: fadeUp 0.3s var(--ease);
}

/* ---------- 消息气泡 ---------- */
.msg {
  display: flex;
  gap: 10px;
  margin: 12px 0;
  animation: popIn 0.28s var(--ease);
  position: relative;
}
.msg.self { flex-direction: row-reverse; }

.avatar {
  width: 38px; height: 38px;
  border-radius: 10px;
  color: #fff;
  font-size: 15px; font-weight: 600;
  display: flex; align-items: center; justify-content: center;
  flex: none;
  user-select: none;
  box-shadow: 0 3px 8px rgba(0, 0, 0, 0.10);
}
.avatar.admin { background: linear-gradient(135deg, #ffb340, #ff7a1f) !important; }

.msg-body { max-width: min(68%, 520px); display: flex; flex-direction: column; }
.msg.self .msg-body { align-items: flex-end; }

.meta {
  display: flex; align-items: baseline; gap: 8px;
  font-size: 12px; color: var(--ink-3);
  margin: 0 2px 4px;
}
.nick { font-weight: 600; color: var(--ink-2); max-width: 300px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.nick.admin-name { color: var(--amber); }
.badge {
  font-size: 10px; font-weight: 700; color: #fff;
  background: linear-gradient(135deg, #ffb340, #ff7a1f);
  padding: 1.5px 6px; border-radius: 6px;
  letter-spacing: 0.5px;
}
.time { font-size: 11px; }

.bubble {
  position: relative;
  padding: 9px 13px;
  border-radius: 4px var(--radius) var(--radius) var(--radius);
  background: #fff;
  border: 1px solid #eef1ef;
  box-shadow: 0 1px 3px rgba(24, 60, 42, 0.05);
  font-size: 14.5px;
  line-height: 1.65;
  word-break: break-word;
  white-space: pre-wrap;
  transition: box-shadow 0.2s var(--ease);
}
.msg.self .bubble {
  background: var(--bubble-self);
  border-color: rgba(7, 193, 96, 0.18);
  border-radius: var(--radius) 4px var(--radius) var(--radius);
  color: var(--bubble-self-text);
}
.msg.flash .bubble { box-shadow: 0 0 0 3px rgba(7, 193, 96, 0.35); }

.text-wrap .text.full.hidden { display: none; }

.fold-toggle {
  display: inline-block;
  margin-top: 5px;
  border: none; background: none; padding: 0;
  color: var(--green);
  font-size: 12.5px; font-weight: 600;
  cursor: pointer;
  font-family: inherit;
}
.fold-toggle:hover { text-decoration: underline; }

/* 悬浮操作（复制 / 置顶） */
.msg-actions {
  position: absolute;
  top: -14px;
  display: flex; gap: 6px;
  opacity: 0;
  transform: translateY(4px);
  transition: all 0.18s var(--ease);
  pointer-events: none;
  z-index: 3;
}
.msg:not(.self) .msg-actions { left: 48px; }
.msg.self .msg-actions { right: 48px; }
.msg:hover .msg-actions { opacity: 1; transform: translateY(0); pointer-events: auto; }

.msg-actions button {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink-2);
  font-size: 11.5px;
  padding: 3px 10px;
  border-radius: 999px;
  cursor: pointer;
  box-shadow: 0 3px 10px rgba(24, 60, 42, 0.10);
  transition: all 0.15s var(--ease);
  font-family: inherit;
}
.msg-actions button:hover { color: var(--green); border-color: var(--green); }
.msg-actions button.act-pin { color: var(--amber); }
.msg-actions button.act-pin:hover { border-color: var(--amber); }

/* 触屏设备常显操作按钮 */
@media (hover: none) {
  .msg-actions { opacity: 1; transform: none; pointer-events: auto; }
}

/* ---------- 关闭横幅 ---------- */
.closed-banner {
  flex: none;
  background: #fff4e5;
  color: #b26a00;
  font-size: 13px;
  text-align: center;
  padding: 9px 16px;
  border-top: 1px solid #f7e3c3;
  animation: slideDown 0.35s var(--ease);
}

/* ---------- 输入区 ---------- */
.composer { flex: none; border-top: 1px solid var(--line); background: #fff; padding: 12px 16px 10px; }
.composer-inner { display: flex; align-items: flex-end; gap: 10px; }

#input {
  flex: 1;
  resize: none;
  border: 1.5px solid transparent;
  background: var(--bg-chat);
  border-radius: 12px;
  padding: 10px 14px;
  font-size: 15px;
  font-family: inherit;
  line-height: 1.5;
  color: var(--ink);
  max-height: 132px;
  outline: none;
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease), opacity 0.2s;
}
#input:focus { border-color: rgba(7, 193, 96, 0.55); background: #fff; }
#input:disabled { opacity: 0.55; cursor: not-allowed; }

.send-btn {
  flex: none;
  border: none;
  background: linear-gradient(135deg, #12d26d, #07a94f);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(7, 193, 96, 0.30);
  transition: all 0.2s var(--ease);
  font-family: inherit;
  letter-spacing: 2px;
}
.send-btn:hover { filter: brightness(1.05); }
.send-btn:active { transform: scale(0.95); }
.send-btn:disabled { background: #ccd6d1; box-shadow: none; cursor: not-allowed; transform: none; }

.composer-hint { margin: 7px 2px 0; font-size: 11px; color: #b3bdb8; text-align: center; }

/* ---------- 弹窗 ---------- */
.modal-mask {
  position: fixed; inset: 0;
  background: rgba(18, 28, 24, 0.45);
  backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  z-index: 50;
  animation: fadeIn 0.2s var(--ease);
  padding: 20px;
}
.modal-card {
  width: min(380px, 100%);
  background: #fff;
  border-radius: 20px;
  padding: 28px 26px 24px;
  box-shadow: 0 30px 80px rgba(0, 0, 0, 0.25);
  animation: popIn 0.25s var(--ease);
  position: relative;
}
.modal-card h2 { margin: 0 0 6px; font-size: 19px; }
.modal-sub { margin: 0 0 18px; font-size: 13px; color: var(--ink-3); }
.modal-close {
  position: absolute; top: 12px; right: 14px;
  border: none; background: #f2f4f3; color: var(--ink-2);
  width: 30px; height: 30px; border-radius: 50%;
  font-size: 18px; cursor: pointer; line-height: 1;
  transition: all 0.15s var(--ease);
}
.modal-close:hover { background: #e5e9e7; }

.field { display: block; margin-bottom: 14px; }
.field span { display: block; font-size: 12.5px; color: var(--ink-2); margin-bottom: 6px; font-weight: 600; }
.field input {
  width: 100%;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  padding: 11px 14px;
  font-size: 16px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.2s var(--ease), box-shadow 0.2s var(--ease);
  background: var(--bg-chat);
}
.field input:focus { border-color: var(--green); background: #fff; box-shadow: 0 0 0 4px rgba(7, 193, 96, 0.12); }

.form-err { color: var(--danger); font-size: 12.5px; margin: 0 0 12px; }
.modal-card.shake { animation: shake 0.4s var(--ease); }

.modal-btns { display: flex; gap: 10px; justify-content: flex-end; margin-top: 6px; }

.primary-btn {
  border: none;
  background: linear-gradient(135deg, #12d26d, #07a94f);
  color: #fff;
  font-size: 14.5px; font-weight: 600;
  padding: 10px 26px;
  border-radius: 12px;
  cursor: pointer;
  box-shadow: 0 6px 16px rgba(7, 193, 96, 0.30);
  transition: all 0.2s var(--ease);
  font-family: inherit;
}
.primary-btn:hover { filter: brightness(1.05); }
.primary-btn:active { transform: scale(0.96); }
.primary-btn:disabled { opacity: 0.6; cursor: wait; }

/* ---------- Toast ---------- */
.toasts {
  position: fixed;
  top: 18px; left: 50%;
  transform: translateX(-50%);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  z-index: 100;
  pointer-events: none;
}
.toast {
  background: rgba(31, 42, 38, 0.88);
  color: #fff;
  font-size: 13px;
  padding: 9px 18px;
  border-radius: 999px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.2);
  backdrop-filter: blur(4px);
  animation: toastIn 0.3s var(--ease);
  max-width: 80vw;
}
.toast.warn { background: rgba(178, 106, 0, 0.92); }
.toast.out { animation: toastOut 0.3s var(--ease) forwards; }

/* ---------- 动画 ---------- */
@keyframes popIn { from { opacity: 0; transform: translateY(10px) scale(0.98); } to { opacity: 1; transform: none; } }
@keyframes fadeUp { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes slideDown { from { opacity: 0; transform: translateY(-10px); } to { opacity: 1; transform: none; } }
@keyframes toastIn { from { opacity: 0; transform: translateY(-14px) scale(0.95); } to { opacity: 1; transform: none; } }
@keyframes toastOut { to { opacity: 0; transform: translateY(-10px) scale(0.96); } }
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20% { transform: translateX(-7px); } 40% { transform: translateX(6px); }
  60% { transform: translateX(-4px); } 80% { transform: translateX(3px); }
}

/* ---------- 移动端 ---------- */
@media (max-width: 640px) {
  body { padding: 0; }
  .app { width: 100%; height: 100dvh; border-radius: 0; border: none; min-height: 0; }
  .messages { padding: 14px 12px 8px; }
  .msg-body { max-width: 78%; }
  .admin-tip { display: none; }
  .topbar { padding: 10px 14px; }
  .ghost-btn { padding: 6px 10px; font-size: 12px; }
  .titles h1 { font-size: 15px; }
}