/* ==========================================================================
   HTL Island Social Engine — RPG NPC Dialogue & Multiplayer Virtual Plaza
   Five-Star Grand NKUHT Concierge Aesthetic (Dark Emerald & Champagne Gold)
   ========================================================================== */

/* ── 線上玩家 3D 頭頂名牌與即時對話氣泡 ── */
.is-peer-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 19;
  overflow: hidden;
}

.is-peer-tag {
  position: absolute;
  left: 0;
  top: 0;
  display: none;
  align-items: center;
  gap: 5px;
  padding: 2px 10px 2px 7px;
  border-radius: 999px;
  background: rgba(13, 28, 24, 0.88);
  border: 1px solid rgba(230, 202, 138, 0.72);
  color: #faf6ed;
  font: 700 11.5px/1.5 "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.32);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  pointer-events: auto;
  cursor: pointer;
  user-select: none;
  will-change: transform;
}
.is-peer-tag:hover {
  border-color: #f5d33a;
  background: rgba(19, 42, 36, 0.96);
}
.is-peer-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #3fe08c;
  box-shadow: 0 0 6px #3fe08c;
  flex: none;
}
.is-peer-role {
  color: #e6ca8a;
  font-weight: 600;
  font-size: 10.5px;
  margin-left: 2px;
}

.is-peer-say {
  position: absolute;
  left: 0;
  top: 0;
  display: none;
  max-width: 220px;
  width: max-content;
  padding: 6px 12px;
  border-radius: 13px;
  background: linear-gradient(180deg, rgba(255, 251, 242, 0.97), rgba(246, 237, 219, 0.96));
  border: 1.5px solid #c6a15b;
  color: #1c1917;
  font: 600 12px/1.45 "Noto Sans TC", "PingFang TC", sans-serif;
  box-shadow: 0 8px 22px rgba(10, 20, 17, 0.28);
  pointer-events: none;
  will-change: transform;
  z-index: 20;
}
.is-peer-say::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: -6px;
  transform: translateX(-50%) rotate(45deg);
  width: 10px;
  height: 10px;
  background: #f6eddb;
  border-right: 1.5px solid #c6a15b;
  border-bottom: 1.5px solid #c6a15b;
}

/* ── RPG 沉浸式 NPC 對話視窗（師長／群賢館長／學長姐／玩家名片） ── */
.is-npc-backdrop {
  position: fixed;
  inset: 0;
  z-index: 38;
  display: none;
  align-items: flex-end;
  justify-content: center;
  padding: 16px 16px calc(20px + env(safe-area-inset-bottom, 0px));
  background: radial-gradient(ellipse at 50% 85%, rgba(10, 22, 19, 0.42), rgba(7, 15, 13, 0.18));
  pointer-events: auto;
}
.is-npc-backdrop.open {
  display: flex;
}

.is-npc-modal {
  width: min(740px, 100%);
  max-height: min(76dvh, 620px);
  display: flex;
  flex-direction: column;
  border-radius: 22px;
  background: linear-gradient(175deg, rgba(13, 28, 24, 0.96) 0%, rgba(20, 39, 34, 0.97) 100%);
  border: 1.5px solid rgba(230, 202, 138, 0.65);
  box-shadow: 0 22px 58px rgba(0, 0, 0, 0.55), inset 0 1px 0 rgba(255, 248, 226, 0.16);
  color: #faf6ed;
  font: 14px/1.55 "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
  overflow: hidden;
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
  animation: isNpcPop 0.22s cubic-bezier(0.22, 1, 0.36, 1);
}

@keyframes isNpcPop {
  from {
    opacity: 0;
    transform: translateY(18px) scale(0.98);
  }
  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.is-npc-head {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 18px;
  background: linear-gradient(90deg, rgba(198, 161, 91, 0.16), rgba(198, 161, 91, 0.03));
  border-bottom: 1px solid rgba(230, 202, 138, 0.28);
  flex: none;
}

.is-npc-avatar {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  border: 2px solid #e6ca8a;
  background: radial-gradient(circle at 50% 35%, #24483e, #0d1c18);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  flex: none;
  box-shadow: 0 6px 16px rgba(0, 0, 0, 0.35);
}
.is-npc-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.is-npc-meta {
  flex: 1;
  min-width: 0;
}
.is-npc-eyebrow {
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.14em;
  color: #e6ca8a;
  text-transform: uppercase;
}
.is-npc-name {
  margin: 2px 0 0;
  font: 900 19px/1.25 "Noto Serif TC", Georgia, serif;
  color: #fff9ee;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.is-npc-badge {
  font: 700 11px/1.3 "Noto Sans TC", sans-serif;
  padding: 2px 8px;
  border-radius: 999px;
  background: rgba(230, 202, 138, 0.18);
  border: 1px solid rgba(230, 202, 138, 0.45);
  color: #f7e4b4;
}
.is-npc-sub {
  margin-top: 3px;
  font-size: 12px;
  color: rgba(250, 246, 237, 0.76);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.is-npc-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  flex: none;
}
.is-btn-top {
  border: 1px solid rgba(230, 202, 138, 0.45);
  background: rgba(255, 255, 255, 0.07);
  color: #faf6ed;
  border-radius: 999px;
  padding: 6px 11px;
  font: 700 12px/1.2 "Noto Sans TC", sans-serif;
  cursor: pointer;
  white-space: nowrap;
  transition: background 0.15s, border-color 0.15s;
}
.is-btn-top:hover {
  background: rgba(230, 202, 138, 0.22);
  border-color: #e6ca8a;
}
.is-btn-close {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  color: #faf6ed;
  font-size: 18px;
  line-height: 1;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
}
.is-btn-close:hover {
  background: rgba(220, 90, 70, 0.35);
  border-color: rgba(255, 140, 120, 0.65);
}

/* 對話紀錄串流 */
.is-npc-log {
  flex: 1;
  min-height: 140px;
  max-height: 300px;
  overflow-y: auto;
  padding: 14px 18px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  overscroll-behavior: contain;
}

.is-msg {
  max-width: 88%;
  padding: 10px 14px;
  border-radius: 15px;
  font-size: 13.5px;
  line-height: 1.58;
  word-break: break-word;
}
.is-msg.npc {
  align-self: flex-start;
  background: rgba(255, 250, 240, 0.95);
  color: #1f1b18;
  border: 1px solid rgba(198, 161, 91, 0.6);
  border-top-left-radius: 4px;
  box-shadow: 0 4px 14px rgba(0, 0, 0, 0.18);
}
.is-msg.me {
  align-self: flex-end;
  background: linear-gradient(145deg, #e6ca8a, #c6a15b);
  color: #16130f;
  font-weight: 700;
  border-top-right-radius: 4px;
}
.is-msg-tag {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 11px;
  font-weight: 700;
  color: #0f523f;
  background: rgba(15, 82, 63, 0.1);
  border-radius: 6px;
  padding: 1px 7px;
  margin-bottom: 5px;
}
.is-msg-links {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 8px;
}
.is-msg-go {
  border: 1px solid #b58d43;
  background: linear-gradient(180deg, #fffdf8, #f4ead6);
  color: #1b352e;
  border-radius: 999px;
  padding: 4px 11px;
  font: 700 12px/1.3 "Noto Sans TC", sans-serif;
  cursor: pointer;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.is-msg-go:hover {
  background: #e6ca8a;
  color: #111;
}

/* 快捷提問晶片列 */
.is-npc-chips {
  display: flex;
  gap: 7px;
  overflow-x: auto;
  padding: 8px 18px;
  border-top: 1px solid rgba(230, 202, 138, 0.18);
  background: rgba(9, 20, 17, 0.55);
  flex: none;
  scrollbar-width: thin;
}
.is-q-chip {
  flex: none;
  border: 1px solid rgba(230, 202, 138, 0.42);
  background: rgba(255, 255, 255, 0.07);
  color: #f7eedb;
  border-radius: 999px;
  padding: 6px 12px;
  font: 600 12.5px/1.25 "Noto Sans TC", sans-serif;
  cursor: pointer;
  transition: background 0.14s, transform 0.1s;
}
.is-q-chip:hover {
  background: rgba(230, 202, 138, 0.24);
  border-color: #e6ca8a;
}
.is-q-chip.gold {
  background: rgba(230, 202, 138, 0.2);
  border-color: #e6ca8a;
  color: #ffe8ad;
}

/* 自由提問輸入列 */
.is-npc-form {
  display: flex;
  gap: 8px;
  padding: 10px 18px 14px;
  background: rgba(7, 16, 14, 0.78);
  border-top: 1px solid rgba(230, 202, 138, 0.2);
  flex: none;
}
.is-npc-input {
  flex: 1;
  min-width: 0;
  border-radius: 999px;
  border: 1px solid rgba(230, 202, 138, 0.42);
  background: rgba(255, 255, 255, 0.94);
  color: #1c1917;
  padding: 8px 15px;
  font: 500 14px/1.3 "Noto Sans TC", sans-serif;
  outline: none;
}
.is-npc-input:focus {
  border-color: #f5d33a;
  box-shadow: 0 0 0 2px rgba(245, 211, 58, 0.28);
}
.is-npc-send {
  border: 0;
  border-radius: 999px;
  padding: 0 18px;
  background: linear-gradient(145deg, #f3dca2, #c6a15b);
  color: #17140f;
  font: 800 13.5px/1 "Noto Sans TC", sans-serif;
  cursor: pointer;
  flex: none;
}
.is-npc-send:hover {
  filter: brightness(1.06);
}

/* ── 多人即時虛擬人同遊廣場抽屜 (.is-plaza-drawer) ── */
.is-plaza-drawer {
  position: fixed;
  right: 16px;
  top: 66px;
  bottom: calc(20px + env(safe-area-inset-bottom, 0px));
  width: min(350px, calc(100vw - 24px));
  max-height: 620px;
  z-index: 35;
  display: none;
  flex-direction: column;
  border-radius: 20px;
  background: linear-gradient(175deg, rgba(12, 26, 22, 0.95) 0%, rgba(18, 36, 31, 0.96) 100%);
  border: 1.5px solid rgba(230, 202, 138, 0.62);
  box-shadow: 0 18px 48px rgba(0, 0, 0, 0.48);
  color: #faf6ed;
  font: 13.5px/1.5 "Noto Sans TC", "PingFang TC", sans-serif;
  overflow: hidden;
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
}
.is-plaza-drawer.open {
  display: flex;
}

.is-plaza-head {
  padding: 13px 15px 11px;
  background: linear-gradient(90deg, rgba(198, 161, 91, 0.18), transparent);
  border-bottom: 1px solid rgba(230, 202, 138, 0.25);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 8px;
}
.is-plaza-title {
  margin: 0;
  font: 900 16.5px/1.25 "Noto Serif TC", Georgia, serif;
  color: #fff8eb;
}
.is-plaza-status {
  margin-top: 3px;
  font-size: 11.5px;
  color: #9de8c0;
  display: flex;
  align-items: center;
  gap: 6px;
  flex-wrap: wrap;
}

.is-plaza-rooms {
  display: flex;
  gap: 5px;
  padding: 8px 12px;
  background: rgba(0, 0, 0, 0.22);
  border-bottom: 1px solid rgba(230, 202, 138, 0.16);
}
.is-room-btn {
  flex: 1;
  border: 1px solid rgba(230, 202, 138, 0.28);
  background: rgba(255, 255, 255, 0.05);
  color: rgba(250, 246, 237, 0.82);
  border-radius: 9px;
  padding: 5px 4px;
  font: 700 11.5px/1.2 "Noto Sans TC", sans-serif;
  cursor: pointer;
}
.is-room-btn.active {
  background: linear-gradient(145deg, #e6ca8a, #c6a15b);
  color: #16130f;
  border-color: #f3dca2;
}

.is-plaza-netcfg {
  padding: 8px 12px;
  background: rgba(7, 15, 13, 0.65);
  border-bottom: 1px solid rgba(230, 202, 138, 0.18);
  font-size: 11.5px;
  display: none;
}
.is-plaza-netcfg.open {
  display: block;
}
.is-plaza-netcfg-row {
  display: flex;
  gap: 6px;
  margin-top: 5px;
}
.is-plaza-netcfg input {
  flex: 1;
  min-width: 0;
  border-radius: 7px;
  border: 1px solid rgba(230, 202, 138, 0.4);
  background: #fff;
  color: #1c1917;
  padding: 4px 8px;
  font: 12px/1.3 monospace;
}

.is-plaza-roster {
  padding: 8px 12px;
  max-height: 118px;
  overflow-y: auto;
  border-bottom: 1px solid rgba(230, 202, 138, 0.16);
  display: flex;
  flex-direction: column;
  gap: 5px;
}
.is-roster-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
  padding: 4px 8px;
  border-radius: 9px;
  background: rgba(255, 255, 255, 0.05);
  font-size: 12px;
}
.is-roster-who {
  display: flex;
  align-items: center;
  gap: 6px;
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.is-roster-go {
  border: 1px solid rgba(230, 202, 138, 0.45);
  background: rgba(230, 202, 138, 0.14);
  color: #ffe8ad;
  border-radius: 999px;
  padding: 2px 8px;
  font: 700 11px/1.3 "Noto Sans TC", sans-serif;
  cursor: pointer;
  flex: none;
}
.is-roster-go:hover {
  background: #e6ca8a;
  color: #14120e;
}

.is-plaza-chat {
  flex: 1;
  min-height: 120px;
  overflow-y: auto;
  padding: 10px 12px;
  display: flex;
  flex-direction: column;
  gap: 7px;
  overscroll-behavior: contain;
}
.is-chat-row {
  font-size: 12.5px;
  line-height: 1.45;
  padding: 6px 10px;
  border-radius: 11px;
  background: rgba(255, 255, 255, 0.07);
  word-break: break-word;
}
.is-chat-row.sys {
  background: rgba(230, 202, 138, 0.12);
  color: #f4dfab;
  font-size: 11.5px;
}
.is-chat-row b {
  color: #e6ca8a;
  margin-right: 6px;
}

.is-plaza-phrases {
  display: flex;
  gap: 5px;
  overflow-x: auto;
  padding: 6px 10px;
  border-top: 1px solid rgba(230, 202, 138, 0.16);
  background: rgba(0, 0, 0, 0.2);
  flex: none;
}
.is-phrase-btn {
  flex: none;
  border: 1px solid rgba(230, 202, 138, 0.35);
  background: rgba(255, 255, 255, 0.06);
  color: #f7eedb;
  border-radius: 999px;
  padding: 4px 10px;
  font: 600 11.5px/1.2 "Noto Sans TC", sans-serif;
  cursor: pointer;
}
.is-phrase-btn:hover {
  background: rgba(230, 202, 138, 0.22);
}

.is-plaza-form {
  display: flex;
  gap: 6px;
  padding: 8px 10px 11px;
  background: rgba(7, 15, 13, 0.82);
  border-top: 1px solid rgba(230, 202, 138, 0.2);
}
.is-plaza-input {
  flex: 1;
  min-width: 0;
  border-radius: 999px;
  border: 1px solid rgba(230, 202, 138, 0.4);
  background: rgba(255, 255, 255, 0.94);
  color: #1c1917;
  padding: 7px 12px;
  font: 500 13.5px/1.2 "Noto Sans TC", sans-serif;
  outline: none;
}

@media (max-width: 800px) {
  #htl-plaza-open {
    display: none !important;
  }
  .is-npc-backdrop {
    z-index: 44;
    padding: 8px 8px calc(14px + env(safe-area-inset-bottom, 0px));
  }
  .is-npc-modal {
    max-height: 82dvh;
    border-radius: 18px;
  }
  .is-npc-avatar {
    width: 48px;
    height: 48px;
    font-size: 22px;
  }
  .is-npc-name {
    font-size: 16.5px;
  }
  .is-npc-input,
  .is-plaza-input {
    font-size: 16px;
  }
  .is-plaza-drawer {
    left: 10px;
    right: 10px;
    top: auto;
    bottom: calc(70px + env(safe-area-inset-bottom, 0px));
    width: auto;
    max-height: calc(100dvh - 142px - env(safe-area-inset-bottom, 0px));
  }
}