/* ═══════════════════════════════════════════════
   KMS 통화방 — voice.css
   KMS 골드 테마 기반 다크 UI
   ═══════════════════════════════════════════════ */

:root {
  --v-bg:     #0a0a0f;
  --v-bg2:    #12121a;
  --v-bg3:    #1a1a26;
  --v-bg4:    #1e1e2e;
  --v-accent: #f5c518;
  --v-accent2: #e8873a;
  --v-green:  #4ade80;
  --v-danger: #f87171;
  --v-text:   #f0f0f0;
  --v-muted:  #8888aa;
  --v-border: #2a2a3a;
  --v-radius: 10px;
  --v-shadow: 0 4px 24px rgba(0,0,0,.6);
  --v-topbar-h: 57px;
}

/* ── 공통 리셋 (voice 영역만) ── */
#voice-wrap *,
#voice-wrap *::before,
#voice-wrap *::after { box-sizing: border-box; }

/* ── 화면 전환 ── */
#voice-wrap { width: 100%; }

.v-screen { display: none; }
.v-screen.active { display: flex; }

/* KMS 헤더가 있을 때 화면 높이 보정 */
body:not(.in-voice-room) .v-screen.active {
  min-height: calc(100dvh - 72px);
}

/* 통화방 스크린: fixed로 전체 덮기 */
#screen-room.active {
  position: fixed;
  inset: 0;
  z-index: 9000;
  height: 100dvh;
  width: 100vw;
}

/* ── 닉네임 화면 ── */
#screen-name {
  align-items: center;
  justify-content: center;
  background: radial-gradient(ellipse at 50% 40%, #1a1526 0%, var(--v-bg) 70%);
  flex-direction: column;
}

.v-center-box {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
  width: 340px;
  padding: 0 20px;
}

.v-logo {
  font-size: 2rem;
  font-weight: 700;
  background: linear-gradient(135deg, var(--v-accent), var(--v-accent2));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.v-subtitle { color: var(--v-muted); font-size: .9rem; }

/* ── 버튼 ── */
.v-btn-primary {
  background: linear-gradient(135deg, var(--v-accent), var(--v-accent2));
  color: #000;
  border: none;
  border-radius: var(--v-radius);
  padding: 11px 22px;
  font-size: .95rem;
  font-weight: 700;
  cursor: pointer;
  width: 100%;
  transition: opacity .15s, transform .15s;
  -webkit-tap-highlight-color: transparent;
}
.v-btn-primary:hover { opacity: .88; transform: translateY(-1px); }

.v-btn-secondary {
  background: var(--v-bg4);
  color: var(--v-muted);
  border: 1px solid var(--v-border);
  border-radius: var(--v-radius);
  padding: 11px 22px;
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  width: 100%;
  transition: background .15s;
  -webkit-tap-highlight-color: transparent;
}
.v-btn-secondary:hover { background: var(--v-bg3); }

/* ── 인풋 ── */
.v-input {
  background: var(--v-bg3);
  border: 1px solid var(--v-border);
  border-radius: var(--v-radius);
  color: var(--v-text);
  font-size: 16px;
  padding: 10px 14px;
  width: 100%;
  outline: none;
  transition: border-color .15s;
  font-family: inherit;
}
.v-input:focus { border-color: var(--v-accent); }
.v-input::placeholder { color: var(--v-muted); }

/* ── 로비 ── */
#screen-lobby {
  flex-direction: column;
  background: var(--v-bg);
}

.v-lobby-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 28px;
  background: var(--v-bg2);
  border-bottom: 1px solid var(--v-border);
  flex-shrink: 0;
}
.v-lobby-title { font-size: 1.1rem; font-weight: 700; color: var(--v-accent); }
.v-user-info { display: flex; align-items: center; gap: 12px; }
.v-user-info span { color: var(--v-muted); font-size: .9rem; }
.v-user-info .v-btn-primary { width: auto; padding: 8px 18px; }

.v-lobby-main {
  flex: 1;
  overflow-y: auto;
  padding: 24px 28px;
  max-width: 820px;
  margin: 0 auto;
  width: 100%;
}

.v-rooms-title {
  font-size: .78rem;
  font-weight: 700;
  color: var(--v-muted);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
}

.v-room-list { display: flex; flex-direction: column; gap: 10px; }

.v-room-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--v-bg2);
  border: 1px solid var(--v-border);
  border-radius: var(--v-radius);
  padding: 16px 20px;
  cursor: pointer;
  transition: border-color .15s, background .15s;
  -webkit-tap-highlight-color: transparent;
}
.v-room-card:hover { border-color: var(--v-accent); background: var(--v-bg3); }
.v-room-card-name { font-size: 1rem; font-weight: 600; color: var(--v-text); }
.v-room-card-meta { font-size: .82rem; color: var(--v-muted); display: flex; gap: 10px; margin-top: 4px; }
.v-badge-lock { color: var(--v-accent); }
.v-badge-users { color: var(--v-green); }
.v-room-card-right .v-btn-primary { width: auto; padding: 7px 16px; font-size: .85rem; }

.v-loading { color: var(--v-muted); text-align: center; padding: 40px 0; }
.v-empty { color: var(--v-muted); text-align: center; padding: 60px 0; font-size: .95rem; }

/* ── 통화방 화면 ── */
#screen-room {
  flex-direction: row;
  background: var(--v-bg);
  overflow: hidden;
}

/* ── 사이드바 ── */
.v-sidebar {
  width: 220px;
  background: var(--v-bg2);
  border-right: 1px solid var(--v-border);
  display: flex;
  flex-direction: column;
  flex-shrink: 0;
  transition: transform .3s ease;
}

.v-topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 14px;
  border-bottom: 1px solid var(--v-border);
  font-weight: 600;
  font-size: .95rem;
  flex-shrink: 0;
}
.v-topbar-right { display: flex; align-items: center; gap: 4px; }

.v-btn-participants {
  display: none;
  align-items: center;
  gap: 5px;
  background: var(--v-bg3);
  border: 1px solid var(--v-border);
  border-radius: 20px;
  color: var(--v-muted);
  font-size: .8rem;
  padding: 4px 10px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

#v-room-title {
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 130px;
  color: var(--v-accent);
}

.v-btn-leave {
  background: none; border: none; color: var(--v-danger); font-size: 1rem;
  cursor: pointer; padding: 4px 8px; border-radius: 6px; transition: background .15s;
  -webkit-tap-highlight-color: transparent;
}
.v-btn-leave:hover { background: rgba(248,113,113,.15); }

.v-participants-label {
  font-size: .72rem; font-weight: 700; color: var(--v-muted);
  text-transform: uppercase; letter-spacing: .07em; padding: 12px 14px 6px;
}

.v-participant-list { flex: 1; overflow-y: auto; padding: 4px 8px; }

.v-participant-item {
  display: flex; align-items: center; justify-content: space-between;
  padding: 8px; border-radius: 8px; gap: 8px; transition: background .12s;
}
.v-participant-item:hover { background: var(--v-bg3); }
.v-participant-item:hover .v-participant-actions { display: flex; }

.v-participant-left { display: flex; align-items: center; gap: 8px; min-width: 0; }

.v-avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: linear-gradient(135deg, var(--v-accent), var(--v-accent2));
  display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; flex-shrink: 0; color: #000;
}
.v-avatar.speaking { box-shadow: 0 0 0 2px var(--v-green); }

.v-participant-name {
  font-size: .88rem; font-weight: 500; overflow: hidden;
  text-overflow: ellipsis; white-space: nowrap; color: var(--v-text);
}
.v-tag-admin { color: var(--v-accent); font-size: .72rem; margin-left: 4px; }
.v-tag-me { color: var(--v-muted); font-size: .72rem; margin-left: 4px; }

.v-participant-icons { display: flex; gap: 4px; font-size: .9rem; }

.v-vol-mini {
  display: flex; align-items: center; gap: 6px; margin-top: 4px;
}
.v-vol-mini label { font-size: .72rem; color: var(--v-muted); white-space: nowrap; }
.v-vol-mini input[type="range"] { width: 80px; height: 4px; accent-color: var(--v-accent); cursor: pointer; }

.v-participant-actions { display: none; gap: 4px; flex-shrink: 0; }
.v-participant-actions button {
  background: none; border: none; cursor: pointer;
  font-size: .8rem; padding: 4px 6px; border-radius: 6px; transition: background .12s;
}
.v-btn-kick { color: var(--v-accent); }
.v-btn-kick:hover { background: rgba(245,197,24,.15); }
.v-btn-ban { color: var(--v-danger); }
.v-btn-ban:hover { background: rgba(248,113,113,.15); }

/* 모바일 오버레이 */
.v-overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(0,0,0,.6); z-index: 49;
}
.v-overlay.open { display: block; }

/* ── 방 메인 ── */
.v-room-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; min-width: 0; }

.v-screen-share-area {
  flex: 1; display: flex; flex-direction: column;
  align-items: center; justify-content: center; background: #000;
  position: relative; overflow: hidden;
}
.v-screen-share-area.hidden { display: none; }

#v-screen-video { max-width: 100%; max-height: 100%; object-fit: contain; }

.v-screen-label {
  position: absolute; bottom: 12px; left: 50%;
  transform: translateX(-50%); background: rgba(0,0,0,.7); color: #fff;
  padding: 4px 12px; border-radius: 20px; font-size: .8rem; white-space: nowrap;
}

/* ── 컨트롤 바 ── */
.v-controls-bar {
  display: flex; align-items: center; gap: 20px;
  padding: 16px 24px; background: var(--v-bg2);
  border-top: 1px solid var(--v-border); flex-wrap: wrap; flex-shrink: 0;
}
.v-ctrl-left { display: flex; gap: 10px; }
.v-ctrl-center { display: flex; gap: 24px; flex: 1; justify-content: center; flex-wrap: wrap; }
.v-ctrl-right { display: flex; gap: 10px; }

.v-ctrl-btn {
  display: flex; flex-direction: column; align-items: center; gap: 4px;
  background: var(--v-bg3); border: 1px solid var(--v-border);
  border-radius: var(--v-radius); color: var(--v-muted);
  padding: 10px 14px; cursor: pointer; font-size: .78rem; min-width: 64px;
  transition: all .15s; -webkit-tap-highlight-color: transparent;
  font-family: inherit;
}
.v-ctrl-btn .icon { font-size: 1.3rem; }
.v-ctrl-btn:hover { border-color: var(--v-accent); color: var(--v-text); }
.v-ctrl-btn.active { background: rgba(245,197,24,.15); border-color: var(--v-accent); color: var(--v-accent); }
.v-ctrl-btn.danger { background: var(--v-danger); border-color: var(--v-danger); color: #fff; }
.v-ctrl-btn.disabled { opacity: .4; pointer-events: none; }

.v-vol-group { display: flex; align-items: center; gap: 8px; font-size: .82rem; }
.v-vol-group label { color: var(--v-muted); white-space: nowrap; }
.v-vol-group input[type="range"] { width: 100px; accent-color: var(--v-accent); cursor: pointer; }
.v-vol-group span { color: var(--v-muted); width: 38px; font-size: .8rem; text-align: right; }

/* ── 모달 ── */
.v-modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,.75);
  display: flex; align-items: center; justify-content: center;
  z-index: 9100; padding: 16px;
}
.v-modal-overlay.hidden { display: none; }

.v-modal {
  background: var(--v-bg2); border: 1px solid var(--v-border);
  border-radius: 14px; padding: 28px 28px 24px;
  width: 100%; max-width: 360px;
  display: flex; flex-direction: column; gap: 14px;
  box-shadow: var(--v-shadow);
}
.v-modal-title { font-size: 1.1rem; font-weight: 700; color: var(--v-text); }
.v-modal-buttons { display: flex; gap: 10px; }

.v-error {
  color: var(--v-danger); font-size: .85rem;
  background: rgba(248,113,113,.1); padding: 8px 12px;
  border-radius: 8px; border: 1px solid rgba(248,113,113,.3);
}
.v-error.hidden { display: none; }

.v-device-group { display: flex; flex-direction: column; gap: 6px; }
.v-device-label { font-size: .85rem; color: var(--v-muted); font-weight: 600; }

.v-device-select {
  background: var(--v-bg3); border: 1px solid var(--v-border);
  border-radius: var(--v-radius); color: var(--v-text);
  font-size: .9rem; padding: 8px 12px; width: 100%;
  outline: none; cursor: pointer; transition: border-color .15s; font-family: inherit;
}
.v-device-select:focus { border-color: var(--v-accent); }

.v-hint { font-size: .78rem; color: var(--v-muted); font-style: italic; }
.v-hint.hidden { display: none; }

/* ── 토스트 ── */
.v-toast {
  position: fixed; bottom: calc(28px + env(safe-area-inset-bottom)); left: 50%;
  transform: translateX(-50%); background: var(--v-bg3);
  border: 1px solid var(--v-border); color: var(--v-text);
  padding: 10px 22px; border-radius: 30px; font-size: .9rem;
  box-shadow: var(--v-shadow); z-index: 9200; transition: opacity .3s;
  white-space: nowrap; max-width: 90vw; overflow: hidden; text-overflow: ellipsis;
}
.v-toast.hidden { opacity: 0; pointer-events: none; }

/* ── 스크롤바 ── */
.v-sidebar ::-webkit-scrollbar,
.v-participant-list::-webkit-scrollbar { width: 4px; }
.v-participant-list::-webkit-scrollbar-track { background: transparent; }
.v-participant-list::-webkit-scrollbar-thumb { background: var(--v-border); border-radius: 2px; }

/* ════════════════════════════════════════
   반응형 — 모바일 (≤ 640px)
   ════════════════════════════════════════ */
@media (max-width: 640px) {
  .v-lobby-header { padding: 12px 16px; }
  .v-lobby-main { padding: 16px; }
  .v-user-info > span { display: none; }

  #screen-room { flex-direction: column; position: fixed; }

  .v-sidebar {
    position: fixed;
    top: var(--v-topbar-h); left: 0; right: 0; bottom: 0;
    width: 100%; border-right: none; border-top: 1px solid var(--v-border);
    border-radius: 16px 16px 0 0; z-index: 50;
    transform: translateY(100%);
    max-height: calc(100dvh - var(--v-topbar-h));
    overflow-y: auto;
  }
  .v-sidebar.open { transform: translateY(0); }

  .v-topbar {
    position: fixed; top: 0; left: 0; right: 0; z-index: 51;
    background: var(--v-bg2); height: var(--v-topbar-h);
    padding: 0 12px; border-radius: 0;
  }
  /* 시트 내부 topbar 숨기기 */
  .v-sidebar .v-topbar { position: static; display: none; }
  .v-sidebar .v-participants-label { padding: 16px 16px 8px; }
  .v-participant-list { padding: 4px 12px 24px; }

  .v-btn-participants { display: flex; }

  .v-room-main { padding-top: var(--v-topbar-h); flex: 1; overflow: hidden; }

  .v-controls-bar {
    flex-direction: column; gap: 10px;
    padding: 12px 12px calc(12px + env(safe-area-inset-bottom));
    align-items: stretch;
  }
  .v-ctrl-left { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; }
  .v-ctrl-btn { min-width: unset; width: 100%; padding: 10px 6px; font-size: .72rem; }
  .v-ctrl-btn .icon { font-size: 1.2rem; }
  .v-ctrl-center { flex-direction: column; gap: 8px; justify-content: flex-start; flex: unset; }
  .v-vol-group { width: 100%; }
  .v-vol-group input[type="range"] { flex: 1; width: auto; min-width: 0; }
  .v-ctrl-right { gap: 8px; }
  .v-ctrl-right .v-ctrl-btn { flex: 1; }
  .v-vol-mini input[type="range"] { flex: 1; width: auto; }
  .v-participant-item { padding: 10px 8px; }
  .v-participant-actions { display: flex; }
  .v-modal { padding: 24px 20px 20px; }
  .v-modal-buttons { flex-direction: column; }
}

@media (max-width: 360px) {
  .v-ctrl-btn .label { display: none; }
  .v-ctrl-btn { padding: 12px 4px; gap: 0; }
  .v-ctrl-btn .icon { font-size: 1.4rem; }
}