/* ============================================================
   浮光剧场 · Composer
   ============================================================ */

.composer {
  --glass-x: 50%;
  --glass-y: 0%;
  position: absolute; z-index: 20;
  left: 50%; right: auto;
  width: min(760px, calc(100% - 40px));
  transform: translateX(-50%);
  bottom: max(12px, env(safe-area-inset-bottom));
  min-width: 0;
  margin: 0;
  padding: 13px 14px 11px;
  border: 1px solid rgba(255,255,255,.13);
  border-radius: 34px;
  background:
    linear-gradient(180deg, rgba(28,28,30,.38), rgba(12,12,14,.24)),
    rgba(8,8,10,.18);
  backdrop-filter: blur(22px) saturate(160%) contrast(104%);
  -webkit-backdrop-filter: blur(22px) saturate(160%) contrast(104%);
  box-shadow:
    0 20px 52px rgba(0,0,0,.22),
    0 5px 16px rgba(0,0,0,.12),
    inset 0 1px 0 rgba(255,255,255,.12);
  transition: background .25s ease, box-shadow .25s ease, border-color .25s ease;
}
.composer::before {
  content: "";
  position: absolute; inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: var(--glass-edge-shadow);
}
.composer::after {
  content: "";
  position: absolute; inset: 1px;
  border-radius: calc(34px - 1px);
  pointer-events: none;
  background: radial-gradient(280px circle at var(--glass-x) var(--glass-y),
    rgba(255,255,255,.13), transparent 62%);
  opacity: .46;
  transition: opacity .18s ease;
}
.composer.is-pressed::after { opacity: .9; }
.composer.over-content {
  background:
    linear-gradient(180deg, rgba(28,28,30,.48), rgba(12,12,14,.32)),
    rgba(8,8,10,.24);
  border-color: rgba(255,255,255,.18);
  box-shadow:
    0 24px 66px rgba(0,0,0,.34),
    0 8px 24px rgba(0,0,0,.2),
    inset 0 1px 0 rgba(255,255,255,.15);
}
[data-theme="light"] .composer {
  background:
    linear-gradient(180deg, rgba(255,255,255,.25), rgba(255,255,255,.10)),
    rgba(255,255,255,.06);
  border-color: rgba(255,255,255,.58);
  box-shadow:
    0 18px 48px rgba(15,23,42,.10),
    0 4px 14px rgba(15,23,42,.05),
    inset 0 1px 0 rgba(255,255,255,.78);
  backdrop-filter: blur(22px) saturate(150%) contrast(103%);
  -webkit-backdrop-filter: blur(22px) saturate(150%) contrast(103%);
}
[data-theme="light"] .composer::before {
  box-shadow: var(--glass-edge-shadow);
}
[data-theme="light"] .composer::after {
  background: radial-gradient(280px circle at var(--glass-x) var(--glass-y),
    rgba(255,255,255,.34), transparent 62%);
}
[data-theme="light"] .composer.over-content {
  background:
    linear-gradient(180deg, rgba(255,255,255,.34), rgba(255,255,255,.16)),
    rgba(255,255,255,.10);
  border-color: rgba(255,255,255,.72);
  box-shadow:
    0 24px 62px rgba(15,23,42,.16),
    0 8px 22px rgba(15,23,42,.09),
    inset 0 1px 0 rgba(255,255,255,.86);
}

/* Segmented Control */
.composer-mode-row {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 10px;
}
.mode-tabs {
  display: inline-flex;
  width: fit-content; max-width: 100%;
  min-height: 40px; gap: 2px;
  padding: 4px;
  border-radius: var(--radius-pill);
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.055);
  box-shadow: inset 0 1px rgba(255,255,255,.055);
}
.quick-continue-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  height: 40px;
  gap: 7px;
  padding: 0 14px;
  border: 1px solid rgba(255,255,255,.09);
  border-radius: var(--radius-pill);
  color: var(--text-primary);
  background: rgba(255,255,255,.075);
  box-shadow: inset 0 1px rgba(255,255,255,.1);
  font-size: 13px;
  font-weight: 600;
  transition: transform .24s var(--ease-fluid), background .24s, box-shadow .24s;
}
.quick-continue-btn svg { width: 16px; height: 16px; stroke-width: 1.9; }
.quick-continue-btn:hover {
  background: rgba(255,255,255,.12);
  box-shadow: 0 5px 14px rgba(0,0,0,.1), inset 0 1px rgba(255,255,255,.14);
}
.quick-continue-btn:active { transform: scale(.96); }
[data-theme="light"] .quick-continue-btn {
  color: rgba(0,0,0,.76);
  background: rgba(255,255,255,.34);
  border-color: rgba(255,255,255,.48);
  box-shadow: inset 0 1px rgba(255,255,255,.65);
}
[data-theme="light"] .quick-continue-btn:hover { background: rgba(255,255,255,.5); }
[data-theme="light"] .mode-tabs {
  background: rgba(60,60,67,.045);
  border-color: rgba(255,255,255,.24);
  box-shadow: inset 0 1px rgba(255,255,255,.38);
}
.mode-tab {
  display: inline-flex; align-items: center; justify-content: center; gap: 0;
  flex: 0 0 auto;
  width: 38px; height: 32px;
  padding: 0;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  background: transparent;
  font-size: 13px; font-weight: 500;
  transition: width .42s var(--ease-fluid), transform .28s var(--ease-fluid),
    background .34s var(--ease-fluid), box-shadow .34s var(--ease-fluid), color .3s;
  overflow: hidden;
}
.mode-tab svg {
  width: 17px; height: 17px; flex: 0 0 auto;
  stroke-width: 1.8;
}
.mode-tab span {
  max-width: 0; margin-left: 0;
  overflow: hidden; opacity: 0; white-space: nowrap;
  transition: max-width .42s var(--ease-fluid), margin-left .42s var(--ease-fluid),
    opacity .28s ease .08s;
}
.mode-tab.active {
  width: 112px;
  color: var(--text-primary);
  font-weight: 650;
  background: rgba(255,255,255,.12);
  box-shadow: 0 3px 10px rgba(0,0,0,.11), inset 0 1px rgba(255,255,255,.13);
}
.mode-tab.active span {
  max-width: 72px;
  margin-left: 7px;
  opacity: 1;
}
[data-theme="light"] .mode-tab.active {
  color: rgba(0,0,0,.82);
  background: rgba(255,255,255,.48);
  box-shadow: 0 3px 10px rgba(15,23,42,.06), inset 0 1px rgba(255,255,255,.72);
}

[data-theme="light"] .composer {
  background:
    linear-gradient(180deg, rgba(255,255,255,.22), rgba(255,255,255,.08)),
    rgba(255,255,255,.045);
}
.mode-tab:not(.active):hover { color: var(--text-primary); }
.mode-tab:active { transform: scale(.97); }

.composer-main {
  display: grid; grid-template-columns: minmax(0, 1fr) auto;
  min-height: 72px; gap: 4px; align-items: end;
  padding: 8px 8px 6px 14px;
  border: 1px solid rgba(255,255,255,.06);
  border-radius: 26px;
  background: rgba(0,0,0,.09);
  box-shadow: inset 0 1px 5px rgba(0,0,0,.13), inset 0 1px rgba(255,255,255,.045);
}
[data-theme="light"] .composer-main {
  background: rgba(60,60,67,.055);
  border-color: rgba(255,255,255,.32);
  box-shadow: inset 0 1px 5px rgba(15,23,42,.04), inset 0 1px rgba(255,255,255,.4);
}

.composer textarea {
  width: 100%; max-height: 150px; resize: none;
  min-height: 48px;
  border: 0; border-radius: 19px;
  padding: 9px 6px;
  background: transparent;
  color: var(--text-primary);
  line-height: 1.55;
  transition: border-color .2s, box-shadow .2s;
}
[data-theme="light"] .composer textarea {
  background: transparent;
  box-shadow: none;
}
.composer textarea:focus {
  box-shadow: none;
  outline: none;
}
.composer textarea::placeholder { color: var(--text-tertiary); }
[data-theme="light"] .composer textarea::placeholder {
  color: rgba(0,0,0,.34);
}

.send-btn {
  display: grid; place-items: center;
  width: 36px; min-width: 36px; height: 36px;
  border-radius: var(--radius-pill);
  background: var(--accent);
  color: #ffffff;
  box-shadow: none;
  transition: transform .16s ease, background .16s ease;
  align-self: end;
  margin-bottom: 3px;
}
.send-btn svg { width: 20px; height: 20px; stroke-width: 2.5; }
.send-btn.danger svg { width: 14px; height: 14px; fill: currentColor; }
.send-btn:hover { filter: brightness(1.1); }
.send-btn:active { transform: scale(0.95); filter: brightness(0.95); }
.send-btn.danger { background: var(--red); box-shadow: 0 2px 8px rgba(255,69,58,0.3); }

.composer-tools {
  position: relative;
  display: flex; align-items: center; gap: 8px;
  margin-top: 9px; padding: 0 2px;
}
.composer-menu-wrap { position: relative; }
.composer-menu-btn {
  display: grid; place-items: center;
  width: 32px; height: 32px;
  border-radius: 50%;
  color: var(--text-secondary);
  background: transparent;
  border: 0;
  transition: all .18s var(--ease-fluid);
}
.composer-menu-btn svg { width: 17px; height: 17px; }
.composer-menu-btn:hover {
  color: var(--text-primary);
  background: rgba(255,255,255,.08);
}
.composer-menu-btn.active { color: var(--text-primary); background: rgba(255,255,255,.08); }

.composer-action-menu {
  position: absolute; z-index: 30;
  isolation: isolate;
  left: 0; bottom: calc(100% + 9px);
  width: 178px;
  display: grid; gap: 2px;
  padding: 6px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 20px;
  background:
    linear-gradient(180deg, rgba(28,28,30,.62), rgba(12,12,14,.48)),
    rgba(8,8,10,.34);
  backdrop-filter: blur(28px) saturate(155%);
  -webkit-backdrop-filter: blur(28px) saturate(155%);
  box-shadow:
    0 18px 46px rgba(0,0,0,.30),
    inset 0 1px rgba(255,255,255,.10);
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(8px) scale(.96);
  transform-origin: left bottom;
  transition: opacity .18s, visibility .18s, transform .22s var(--ease-fluid);
}
.composer-action-menu::before {
  content: "";
  position: absolute;
  z-index: 2;
  inset: 0;
  border-radius: inherit;
  pointer-events: none;
  box-shadow: var(--glass-edge-shadow);
}
[data-theme="dark"] .composer-action-menu {
  border-color: rgba(255,255,255,.12);
  background:
    linear-gradient(180deg, rgba(28,28,30,.62), rgba(12,12,14,.48)),
    rgba(8,8,10,.34);
  box-shadow:
    0 18px 46px rgba(0,0,0,.30),
    inset 0 1px rgba(255,255,255,.1);
}
[data-theme="light"] .composer-action-menu {
  border-color: rgba(255,255,255,.68);
  background:
    linear-gradient(180deg, rgba(255,255,255,.68), rgba(255,255,255,.48)),
    rgba(242,242,247,.38);
  box-shadow:
    0 18px 46px rgba(15,23,42,.12),
    inset 0 1px rgba(255,255,255,.76);
}
.composer-action-menu.open {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: none;
}
.composer-menu-item {
  display: flex; align-items: center; gap: 10px;
  min-height: 40px; padding: 0 11px;
  border-radius: 14px;
  color: rgba(0,0,0,.72);
  background: transparent;
  font-size: 13px; font-weight: 500;
  text-align: left;
  transition: background .16s, transform .16s;
}
[data-theme="dark"] .composer-menu-item { color: rgba(255,255,255,.78); }
[data-theme="dark"] .composer-menu-item:hover { background: rgba(255,255,255,.09); }
.composer-menu-item:hover { background: rgba(255,255,255,.56); }
.composer-menu-item:active { transform: scale(.98); }
.composer-menu-item svg { width: 17px; height: 17px; stroke-width: 1.8; }
[data-theme="light"] .composer-menu-btn {
  color: rgba(0,0,0,.54);
  background: transparent;
  border: 0;
  box-shadow: none;
}
[data-theme="light"] .composer-menu-btn:hover,
[data-theme="light"] .composer-menu-btn.active {
  color: rgba(0,0,0,.78);
  background: rgba(0,0,0,.06);
}

#statusText {
  margin-left: auto;
  min-height: 30px; padding: 0 8px;
  display: inline-flex; align-items: center;
  color: rgba(200, 205, 215, 0.85); font-size: 12px; font-weight: 500;
  background: transparent;
}
[data-theme="light"] #statusText {
  color: rgba(50, 55, 65, 0.75);
}