/* ============================================================
   GPF Hong Kong · Widgets — language switcher, chat, admin panel
   ============================================================ */

/* ---------------- LANGUAGE SWITCHER ---------------- */
.lang { position: relative; }
.lang__btn { width: auto; padding: 0 12px; gap: 7px; font-size: 12px; font-weight: 600; letter-spacing: 0.06em; }
.lang__btn svg { transition: transform 0.3s var(--ease); }
.lang__btn[aria-expanded="true"] svg { transform: rotate(180deg); }
.lang__menu {
  position: absolute; top: calc(100% + 10px); right: 0;
  min-width: 180px; padding: 8px;
  background: var(--panel-grad); border: 1px solid var(--border-2);
  border-radius: var(--radius); box-shadow: 0 20px 50px rgba(0,0,0,0.5);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  opacity: 0; transform: translateY(-8px); pointer-events: none;
  transition: opacity 0.28s var(--ease), transform 0.28s var(--ease);
  z-index: 55;
}
.lang__menu.is-open { opacity: 1; transform: none; pointer-events: auto; }
.lang-item {
  display: flex; align-items: baseline; gap: 12px; width: 100%;
  padding: 11px 14px; border-radius: var(--radius-sm); text-align: left;
  color: var(--text-1); transition: background 0.25s var(--ease), color 0.25s var(--ease);
}
.lang-item:hover { background: rgba(0,163,224,0.1); color: var(--text-0); }
.lang-item strong { font-size: 13px; letter-spacing: 0.04em; min-width: 3ch; color: var(--text-0); }
.lang-item span { font-size: 12px; color: var(--text-2); }
.lang-item.is-active { background: rgba(0,163,224,0.14); }
.lang-item.is-active strong { color: var(--brand-cyan-bright); }

/* ---------------- NAV LOGO (theme-swapped) ---------------- */
.nav__logo { height: clamp(40px, 4.4vw, 54px); width: auto; display: block; border-radius: 10px; }
.nav__logo--light { display: none; }
[data-theme="light"] .nav__logo--dark { display: none; }
[data-theme="light"] .nav__logo--light { display: block; }

/* ---------------- ADMIN CONTROLS (authed admins only) ---------------- */
.nav__mode, .nav__admin { display: none; }
html[data-admin="true"] .nav__mode,
html[data-admin="true"] .nav__admin { display: inline-flex; }

/* ---------------- LOGIN OVERLAY ---------------- */
.login {
  position: fixed; inset: 0; z-index: 80;
  display: none; align-items: center; justify-content: center; padding: 24px;
  background: radial-gradient(ellipse at 50% 30%, rgba(7,18,32,0.85), rgba(2,5,9,0.94));
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
}
.login.is-open { display: flex; animation: loginFade 0.4s var(--ease); }
@keyframes loginFade { from { opacity: 0; } to { opacity: 1; } }
.login__card {
  width: min(420px, 100%); padding: clamp(28px, 4vw, 44px);
  background: var(--panel-grad); border: 1px solid var(--border-2);
  border-radius: var(--radius-lg); box-shadow: 0 40px 90px rgba(0,0,0,0.6);
  text-align: center;
}
.login__brand img { width: auto; height: 76px; margin: 0 auto 18px; }
.login__title { font-size: 22px; font-weight: 600; color: var(--text-0); margin-bottom: 6px; }
.login__sub { font-size: 13px; color: var(--text-2); margin-bottom: 26px; }
.login__form { display: flex; flex-direction: column; gap: 16px; text-align: left; }
.login__error { font-size: 13px; color: var(--bad); min-height: 18px; text-align: center; }
.login__submit { justify-content: center; width: 100%; }
.login__cancel { font-size: 12px; letter-spacing: 0.04em; color: var(--text-3); transition: color 0.25s var(--ease); }
.login__cancel:hover { color: var(--brand-cyan-bright); }

/* ---------------- ADMIN TABS ---------------- */
.admin-tabs { display: flex; gap: 6px; padding: 0 24px; border-bottom: 1px solid var(--border-1); }
.admin-tab {
  padding: 14px 18px; font-size: 13px; font-weight: 600; color: var(--text-2);
  border-bottom: 2px solid transparent; transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.admin-tab:hover { color: var(--text-0); }
.admin-tab.is-active { color: var(--brand-cyan-bright); border-color: var(--brand-cyan-bright); }
.admin-tabpane[hidden] { display: none; }
.admin-logout { justify-content: center; width: 100%; border-color: rgba(239,68,68,0.4); color: var(--text-1); }
.admin-logout:hover { border-color: var(--bad); background: rgba(239,68,68,0.12); box-shadow: none; }

/* ---------------- CHAT WIDGET ---------------- */
.chat { position: fixed; right: clamp(16px, 3vw, 36px); bottom: clamp(16px, 3vw, 36px); z-index: 58; }
html[data-mode="edit"] .chat { display: none; } /* avoid clash with save FAB */

.chat__launcher {
  position: relative; margin-left: auto;
  width: 60px; height: 60px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent-ink); background: linear-gradient(135deg, var(--brand-cyan-bright), var(--brand-aurora));
  box-shadow: 0 14px 38px rgba(0,163,224,0.45);
  transition: transform 0.3s var(--ease-spring), box-shadow 0.3s var(--ease);
}
.chat__launcher:hover { transform: translateY(-3px) scale(1.05); }
.chat__launcher svg { width: 26px; height: 26px; }
.chat[data-open="true"] .chat__launcher { transform: scale(0.9); opacity: 0.85; }

.chat__window {
  position: absolute; right: 0; bottom: 76px;
  width: min(380px, calc(100vw - 32px));
  height: min(560px, calc(100vh - 140px));
  display: flex; flex-direction: column; overflow: hidden;
  background: var(--panel-grad); border: 1px solid var(--border-2);
  border-radius: var(--radius-lg);
  box-shadow: 0 30px 70px rgba(0,0,0,0.55);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  opacity: 0; transform: translateY(20px) scale(0.96); transform-origin: bottom right;
  pointer-events: none;
  transition: opacity 0.32s var(--ease), transform 0.32s var(--ease-spring);
}
.chat[data-open="true"] .chat__window { opacity: 1; transform: none; pointer-events: auto; }

.chat__head { display: flex; align-items: center; gap: 12px; padding: 16px 18px; border-bottom: 1px solid var(--border-1); }
.chat__avatar {
  width: 38px; height: 38px; flex: none; border-radius: 50%;
  display: grid; place-items: center; color: var(--brand-cyan-bright);
  background: radial-gradient(circle at 30% 30%, rgba(0,163,224,0.3), rgba(7,15,28,0.5));
  border: 1px solid var(--border-2);
}
.chat__avatar svg { width: 18px; height: 18px; }
.chat__head-text { display: flex; flex-direction: column; line-height: 1.25; min-width: 0; }
.chat__title { font-size: 15px; font-weight: 700; color: var(--text-0); }
.chat__sub { font-size: 11px; color: var(--text-2); }
.chat__close { margin-left: auto; color: var(--text-2); width: 30px; height: 30px; display: grid; place-items: center; border-radius: 8px; transition: color 0.25s, background 0.25s; }
.chat__close:hover { color: var(--text-0); background: rgba(255,255,255,0.06); }

.chat__log { flex: 1; overflow-y: auto; padding: 18px; display: flex; flex-direction: column; gap: 12px; scrollbar-width: thin; }
.chat__msg {
  max-width: 84%; padding: 11px 15px; border-radius: 16px; font-size: 14px; line-height: 1.55;
  white-space: normal; word-wrap: break-word; animation: chatIn 0.3s var(--ease);
}
@keyframes chatIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.chat__msg--bot { align-self: flex-start; background: rgba(18,38,60,0.75); border: 1px solid var(--border-1); color: var(--text-1); border-bottom-left-radius: 5px; }
.chat__msg--user { align-self: flex-end; background: linear-gradient(135deg, rgba(0,163,224,0.28), rgba(124,240,210,0.18)); border: 1px solid var(--border-2); color: var(--text-0); border-bottom-right-radius: 5px; }
[data-theme="light"] .chat__msg--bot { background: rgba(255,255,255,0.9); }

.chat__typing { display: inline-flex; gap: 5px; align-items: center; }
.chat__typing span { width: 7px; height: 7px; border-radius: 50%; background: var(--brand-cyan-bright); opacity: 0.5; animation: typing 1.2s var(--ease) infinite; }
.chat__typing span:nth-child(2) { animation-delay: 0.2s; }
.chat__typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0%, 60%, 100% { transform: translateY(0); opacity: 0.4; } 30% { transform: translateY(-5px); opacity: 1; } }

.chat__form { display: flex; gap: 8px; padding: 12px 14px; border-top: 1px solid var(--border-1); }
.chat__input {
  flex: 1; padding: 12px 14px; border-radius: 999px;
  background: rgba(7,15,28,0.5); border: 1px solid var(--border-1); color: var(--text-0);
  font-size: 14px; transition: border-color 0.25s var(--ease);
}
[data-theme="light"] .chat__input { background: rgba(255,255,255,0.7); }
.chat__input:focus { outline: none; border-color: var(--brand-cyan); }
.chat__input::placeholder { color: var(--text-3); }
.chat__send {
  width: 44px; height: 44px; flex: none; border-radius: 50%;
  display: grid; place-items: center; color: var(--accent-ink);
  background: linear-gradient(135deg, var(--brand-cyan-bright), var(--brand-aurora));
  transition: transform 0.25s var(--ease-spring), opacity 0.25s;
}
.chat__send:hover { transform: scale(1.08); }
.chat__send:disabled { opacity: 0.5; transform: none; }
.chat__disclaimer { padding: 0 18px 12px; font-size: 11px; color: var(--text-3); text-align: center; }

/* ---------------- ADMIN PANEL DRAWER ---------------- */
.admin-panel {
  position: fixed; top: 0; right: 0; bottom: 0; z-index: 65;
  width: min(440px, 100vw);
  background: var(--panel-grad); border-left: 1px solid var(--border-2);
  box-shadow: -24px 0 70px rgba(0,0,0,0.5);
  backdrop-filter: blur(22px); -webkit-backdrop-filter: blur(22px);
  transform: translateX(100%); transition: transform 0.45s var(--ease);
  display: flex; flex-direction: column;
}
.admin-panel.is-open { transform: none; }
.admin-panel__head {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 24px; border-bottom: 1px solid var(--border-1);
  font-size: 16px; font-weight: 700; color: var(--text-0);
}
.admin-panel__close { color: var(--text-2); width: 32px; height: 32px; display: grid; place-items: center; border-radius: 8px; transition: color 0.25s, background 0.25s; }
.admin-panel__close:hover { color: var(--text-0); background: rgba(255,255,255,0.06); }
.admin-panel__body { padding: 24px; overflow-y: auto; display: flex; flex-direction: column; gap: 20px; }

.admin-field { display: flex; flex-direction: column; gap: 8px; }
.admin-field__label { font-size: 12px; letter-spacing: 0.04em; color: var(--brand-cyan-bright); font-weight: 600; }
.admin-field__input {
  padding: 12px 14px; border-radius: var(--radius-sm);
  background: rgba(7,15,28,0.55); border: 1px solid var(--border-1); color: var(--text-0);
  font-size: 14px; font-family: var(--font-sans); transition: border-color 0.25s var(--ease);
}
[data-theme="light"] .admin-field__input { background: rgba(255,255,255,0.75); }
.admin-field__input:focus { outline: none; border-color: var(--brand-cyan); }
.admin-field__area { resize: vertical; min-height: 140px; line-height: 1.55; font-family: var(--font-mono); font-size: 13px; }
.admin-field__hint { font-size: 12px; color: var(--text-3); }
.admin-row { display: flex; gap: 16px; }
.admin-field--sm { flex: 1; }
.admin-toggle-row { display: flex; align-items: center; gap: 10px; font-size: 14px; color: var(--text-1); cursor: pointer; }
.admin-toggle-row input { width: 18px; height: 18px; accent-color: var(--brand-cyan); }
.admin-save { justify-content: center; width: 100%; }
.admin-note { font-size: 12px; color: var(--text-3); line-height: 1.6; }
.admin-note code { font-family: var(--font-mono); color: var(--brand-cyan-bright); font-size: 11px; }

@media (max-width: 560px) {
  .chat__window { height: min(70vh, calc(100vh - 120px)); }
  .admin-panel { width: 100vw; }
}