@import url('https://fonts.googleapis.com/css2?family=Be+Vietnam+Pro:wght@400;500;600;700;800&display=swap');

/* ---------- Design tokens ---------- */
:root {
  --bg-1: #0b1220;
  --bg-2: #0f172a;
  --bg-3: #080e1c;
  --panel: rgba(15, 23, 42, .82);
  --line: #1a2a44;

  --teal: #0ac8b9;
  --teal-deep: #0050d8;
  --gold: #c8aa6e;
  --gold-soft: #f0e6d2;

  --text: #f0e6d2;
  --text-dim: rgba(240, 230, 210, .62);
  --text-faint: rgba(240, 230, 210, .38);

  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-pill: 999px;

  --shadow-soft: 0 18px 50px rgba(0, 0, 0, .45);
  --shadow-hard: 0 30px 80px rgba(0, 0, 0, .55);

  --ease: cubic-bezier(.22, .61, .36, 1);
  --font: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; }

/* ---------- Base ---------- */
html { scroll-behavior: smooth; }

body, .mainbg {
  margin: 0;
  min-height: 100vh;
  background: var(--bg-3);
  color: var(--text);
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

/* ===== NỀN GAME: lưới lục giác mờ + quầng sáng vàng/ngọc (tĩnh -> mượt) ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background: linear-gradient(180deg, var(--bg-2), var(--bg-3));
}
body::after {
  content: '';
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background-image:
    radial-gradient(42% 38% at 16% 12%, rgba(200,170,110,.12), transparent 60%),
    radial-gradient(46% 42% at 86% 84%, rgba(10,200,185,.10), transparent 60%),
    url("data:image/svg+xml,%3Csvg%20xmlns%3D%27http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%27%20width%3D%2728%27%20height%3D%2749%27%20viewBox%3D%270%200%2028%2049%27%3E%3Cpath%20fill%3D%27%23c8aa6e%27%20fill-opacity%3D%270.06%27%20fill-rule%3D%27evenodd%27%20d%3D%27M13.99%209.25l13%207.5v15l-13%207.5L1%2031.75v-15l12.99-7.5zM3%2017.9v12.7l10.99%206.34%2011-6.35V17.9l-11-6.34L3%2017.9zM0%2015l12.98-7.5V0h-2v6.35L0%2012.69v2.3zm0%2018.5L12.98%2041v8h-2v-6.85L0%2035.81v-2.3zM15%200v7.5L27.99%2015H28v-2.31h-.01L17%206.35V0h-2zm0%2049v-8l12.99-7.5H28v2.31h-.01L17%2042.15V49h-2z%27%2F%3E%3C%2Fsvg%3E");
  background-repeat: no-repeat, no-repeat, repeat;
  background-size: auto, auto, 48px 84px;
}
@keyframes auroraDrift {
  0%   { transform: translate3d(-3%, -2%, 0) scale(1); }
  50%  { transform: translate3d(3%, 2%, 0) scale(1.12); }
  100% { transform: translate3d(-2%, 3%, 0) scale(1.06); }
}

::selection { background: rgba(10, 200, 185, .35); color: #fff; }

/* Thanh cuộn chung */
* { scrollbar-width: thin; scrollbar-color: var(--line) transparent; }
*::-webkit-scrollbar { width: 8px; height: 8px; }
*::-webkit-scrollbar-thumb { background: var(--line); border-radius: 8px; }
*::-webkit-scrollbar-thumb:hover { background: #24395c; }

/* ---------- Particles nền ---------- */
#particles { display: none; } /* tắt hiệu ứng đốm cũ, thay bằng nền aurora động */

.particle {
  position: absolute;
  width: 3px;
  height: 3px;
  background: #fff;
  border-radius: 50%;
  opacity: .3;
  animation: float 15s linear infinite;
  will-change: transform;
}

@keyframes float {
  from { transform: translateY(100vh); }
  to   { transform: translateY(-100px); }
}

/* ---------- Container chính ---------- */
.main-container {
  position: relative;
  z-index: 2;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 18px;
}

/* ---------- Khung Hero ---------- */
.hero {
  width: 100%;
  max-width: 820px;
  position: relative;
  padding: clamp(28px, 5vw, 52px) clamp(22px, 5vw, 48px);
  background: linear-gradient(180deg, var(--panel), rgba(8, 14, 28, .94));
  border-radius: var(--radius-lg);
  border: 1px solid rgba(26, 42, 68, .9);
  box-shadow: var(--shadow-hard);
  /* (Đã bỏ backdrop-filter: nó tạo "containing block" làm popup position:fixed
     không nổi đúng theo màn hình khi cuộn) */
}

.hero h1 {
  margin: 0 0 22px;
  font-size: clamp(28px, 5.2vw, 46px);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -.5px;
  background: linear-gradient(100deg, #fff 0%, var(--gold-soft) 55%, var(--gold) 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  text-shadow: 0 2px 30px rgba(0, 0, 0, .35);
}

/* Alert (override nhẹ Bootstrap để hợp tông) */
.hero .alert {
  border: 1px solid rgba(255, 200, 61, .35);
  background: linear-gradient(135deg, rgba(255, 200, 61, .14), rgba(255, 200, 61, .05));
  color: #ffe9b0;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 18px;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .06);
}

/* ---------- Viền sáng chạy quanh hero ---------- */
.hero::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: var(--radius-lg);
  border: 2px solid transparent;
  background: linear-gradient(90deg, var(--teal), var(--gold-soft), var(--gold), var(--teal)) border-box;
  background-size: 300% 100%;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
          mask-composite: exclude;
  pointer-events: none;
  animation: slideLight 4.2s linear infinite;
  will-change: background-position;
  filter: drop-shadow(0 0 5px rgba(10, 200, 185, .7)) drop-shadow(0 0 12px rgba(240, 230, 210, .35));
  opacity: .9;
}

@keyframes slideLight {
  0%   { background-position: 0% 0%; }
  100% { background-position: 300% 0%; }
}

/* ---------- Countdown / subscribe ---------- */
.countdown { font-size: 40px; font-weight: 700; margin: 20px 0; }
.subscribe { display: flex; gap: 10px; }

/* ---------- Nhãn gợi ý phía trên nút liên hệ ---------- */
.contact-hint {
  position: relative;
  margin: 30px auto 0;
  color: var(--gold-soft);
  font-size: 15px;
  font-weight: 700;
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  text-shadow: 0 2px 10px rgba(0, 0, 0, .6);
  animation: bounceHint 1.8s ease-in-out infinite;
}

@keyframes bounceHint {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-6px); }
}

/* ---------- Nút Zalo / Messenger ---------- */
.floating-contact {
  position: relative;
  margin: 16px auto 0;
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.floating-contact a {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 3px;
  width: 220px;
  padding: 15px 20px;
  border-radius: var(--radius-pill);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  box-shadow: var(--shadow-soft);
  animation: pulse 2s infinite, bob 2.6s ease-in-out infinite;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease);
  border: 1px solid rgba(255, 255, 255, .28);
  overflow: hidden;
}

/* Lớp sáng lướt qua nút khi hover */
.floating-contact a::after {
  content: '';
  position: absolute;
  top: 0; left: -60%;
  width: 50%; height: 100%;
  background: linear-gradient(100deg, transparent, rgba(255, 255, 255, .35), transparent);
  transform: skewX(-20deg);
  transition: left .6s var(--ease);
}
.floating-contact a:hover::after { left: 120%; }

.floating-contact a:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 22px 50px rgba(0, 0, 0, .6);
}
.floating-contact a:active { transform: scale(.97); }

.btn-main-line {
  display: flex;
  align-items: center;
  gap: 9px;
  font-size: 16px;
  line-height: 1.2;
  white-space: nowrap;
}

.btn-sub-line {
  font-size: 11.5px;
  font-weight: 500;
  opacity: .92;
  letter-spacing: .2px;
  white-space: nowrap;
}

.floating-contact a img {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
  border-radius: 50%;
  object-fit: contain;
  background: rgba(255, 255, 255, .12);
}

.floating-contact a .online-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 0 2px rgba(255, 255, 255, .85), 0 0 7px rgba(74, 222, 128, .9);
  flex-shrink: 0;
  animation: blink 1.8s ease-in-out infinite;
}

.zalo-btn      { background: linear-gradient(180deg, #2b8bff, #0050d8); }
.messenger-btn { background: linear-gradient(180deg, #3aa0ff, #0062d6); }

@keyframes pulse {
  0%   { box-shadow: 0 0 0 0 rgba(255, 255, 255, .5), var(--shadow-soft); }
  70%  { box-shadow: 0 0 0 18px rgba(255, 255, 255, 0), var(--shadow-soft); }
  100% { box-shadow: 0 0 0 0 rgba(255, 255, 255, 0), var(--shadow-soft); }
}

@keyframes bob {
  0%, 100% { translate: 0 0; }
  50%      { translate: 0 -4px; }
}

@keyframes blink {
  0%, 100% { opacity: 1; }
  50%      { opacity: .55; }
}

/* ---------- Responsive (liên hệ / hero) ---------- */
@media (max-width: 768px) {
  .hero .alert { font-size: 14px; padding: 12px 14px; }
  .subscribe { flex-direction: column; }
  .floating-contact { width: 100%; gap: 10px; }
  .floating-contact a {
    flex: 1;
    width: auto;
    min-width: 150px;
    justify-content: center;
    padding: 14px;
  }
  .btn-main-line { font-size: 15px; }
  .btn-sub-line  { font-size: 10.5px; }
  .contact-hint  { font-size: 13.5px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; scroll-behavior: auto; }
}

/* ===== KHỐI GIỚI THIỆU (SEO) ===== */
.about-seo {
  margin: 30px auto 0;
  max-width: none;
  text-align: left;
  padding: 22px 24px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(200, 170, 110, .18);
  border-radius: var(--radius-md);
}

.about-seo h2 {
  margin: 0 0 12px;
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-soft);
  letter-spacing: .2px;
}

.about-seo p {
  margin: 0 0 12px;
  font-size: 14.5px;
  line-height: 1.75;
  color: var(--text-dim);
}
.about-seo p:last-child { margin-bottom: 0; }
.about-seo strong { color: var(--gold-soft); font-weight: 600; }

@media (max-width: 768px) {
  .about-seo { padding: 18px 16px; }
  .about-seo h2 { font-size: 18px; }
  .about-seo p { font-size: 13.5px; }
}

/* ===== KHUNG CHAT AI (giữ nguyên, tinh chỉnh nhẹ) ===== */
.chat-section { margin-top: 32px; text-align: left; }

.chat-hint {
  text-align: center;
  color: var(--gold);
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: .3px;
}

.chat-name-wrap { display: flex; gap: 10px; }

.chat-name-wrap input {
  flex: 1;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--line);
  background: rgba(255, 255, 255, .06);
  color: var(--text);
  font-family: var(--font);
  font-size: 15px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.chat-name-wrap input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(10, 200, 185, .18); }
.chat-name-wrap input::placeholder { color: var(--text-faint); }

.chat-name-wrap button {
  padding: 12px 24px;
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff;
  font-family: var(--font);
  font-weight: 700;
  font-size: 15px;
  cursor: pointer;
  white-space: nowrap;
  transition: filter .2s, transform .15s;
}
.chat-name-wrap button:hover  { filter: brightness(1.08); }
.chat-name-wrap button:active { transform: scale(.96); }

#chatBox {
  flex-direction: column;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(255, 255, 255, .04);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 10px 16px;
  background: linear-gradient(90deg, var(--teal), var(--teal-deep));
  font-weight: 700;
  font-size: 14px;
  color: #fff;
}

.chat-reset-btn {
  background: rgba(255, 255, 255, .2);
  border: none;
  border-radius: 20px;
  color: #fff;
  font-size: 12px;
  padding: 4px 12px;
  cursor: pointer;
  transition: background .15s;
}
.chat-reset-btn:hover { background: rgba(255, 255, 255, .35); }

.chat-messages {
  height: 260px;
  overflow-y: auto;
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.chat-msg {
  max-width: 80%;
  padding: 10px 14px;
  border-radius: 14px;
  font-size: 14px;
  line-height: 1.6;
  word-break: break-word;
}

.chat-msg-user {
  align-self: flex-end;
  background: linear-gradient(135deg, var(--teal-deep), var(--teal));
  color: #fff;
  border-bottom-right-radius: 4px;
}

.chat-msg-bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, .09);
  color: var(--text);
  border-bottom-left-radius: 4px;
  border: 1px solid rgba(200, 170, 110, .2);
}

.typing-dot {
  display: inline-block;
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--gold);
  margin: 0 2px;
  animation: typingBounce .9s ease-in-out infinite;
}
.typing-dot:nth-child(2) { animation-delay: .15s; }
.typing-dot:nth-child(3) { animation-delay: .30s; }

@keyframes typingBounce {
  0%, 80%, 100% { transform: translateY(0); }
  40%           { transform: translateY(-6px); }
}

.chat-input-row {
  display: flex;
  gap: 8px;
  padding: 10px 12px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  background: rgba(0, 0, 0, .15);
}

.chat-input-row input {
  flex: 1;
  padding: 10px 14px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--line);
  background: rgba(255, 255, 255, .07);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.chat-input-row input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(10, 200, 185, .15); }
.chat-input-row input::placeholder { color: var(--text-faint); }

.chat-input-row button {
  padding: 10px 20px;
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff;
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: filter .2s;
}
.chat-input-row button:hover     { filter: brightness(1.08); }
.chat-input-row button:disabled  { opacity: .4; cursor: default; }

@media (max-width: 768px) {
  .chat-name-wrap input  { font-size: 14px; padding: 10px 14px; }
  .chat-name-wrap button { padding: 10px 18px; font-size: 14px; }
  .chat-messages { height: 200px; }
}
/* ===== END CHAT ===== */

/* ===== PHÒNG CHAT CỘNG ĐỒNG ===== */
.community-chat-section { margin-top: 34px; text-align: left; }

.community-chat-label {
  position: relative;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
  text-align: center;
  margin-bottom: 16px;
  padding: 12px 18px;
  border-radius: 14px;
  font-size: 15.5px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(135deg, #7c3aed 0%, #db2777 55%, #f59e0b 100%);
  border: 1px solid rgba(255, 255, 255, .28);
  animation: commLabelPulse 2.2s ease-in-out infinite;
}

.comm-label-text { text-shadow: 0 1px 6px rgba(0, 0, 0, .4); }

/* Nhóm LIVE + lời mời */
.comm-label-head {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  flex-wrap: wrap;
}
/* Hàng nhập tên + Vào phòng: chỉ hiện trong popup mobile */
.comm-label-join { display: none; }
/* Nút "Vào phòng" trong popup mời (chỉ hiện trên mobile) */
.comm-label-cta { display: none; }

/* Nút đóng popup — chỉ hiện trên mobile */
.comm-label-close {
  display: none;
  position: absolute;
  top: 50%;
  right: 8px;
  transform: translateY(-50%);
  width: 24px;
  height: 24px;
  border: none;
  border-radius: 50%;
  background: rgba(255, 255, 255, .15);
  color: #fff;
  font-size: 12px;
  line-height: 1;
  cursor: pointer;
  align-items: center;
  justify-content: center;
}
.comm-label-close:hover { background: rgba(255, 255, 255, .3); }

@keyframes commLabelPulse {
  0%, 100% { box-shadow: 0 0 16px rgba(124, 58, 237, .35); }
  50%      { box-shadow: 0 0 30px rgba(219, 39, 119, .5); }
}

/* Nhãn LIVE màu đỏ nhấp nháy để hút mắt */
.comm-live-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  background: linear-gradient(135deg, #f43f5e, #e11d48);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: .6px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  box-shadow: 0 0 10px rgba(225, 29, 72, .65);
  flex-shrink: 0;
}

.comm-live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #fff;
  animation: commBlink 1.2s ease-in-out infinite;
}

@media (max-width: 768px) {
  /* Trên mobile: banner phòng chat thành POPUP nổi ở ĐÁY màn hình (vì trang dài),
     có sẵn ô nhập tên + nút Vào phòng; bấm ✕ để đóng. */
  .community-chat-label {
    position: fixed;
    bottom: calc(14px + env(safe-area-inset-bottom, 0px)); /* chừa khoảng cho tai thỏ / thanh gesture iPhone */
    top: auto;
    left: 12px;
    right: 12px;
    z-index: 1000;
    margin: 0;
    flex-direction: column;
    gap: 8px;
    font-size: 13px;
    padding: 12px 14px;
    cursor: pointer;
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .28);
    background: linear-gradient(135deg, #7c3aed 0%, #db2777 55%, #f59e0b 100%);
    box-shadow: 0 14px 36px rgba(124, 58, 237, .5), 0 6px 18px rgba(0, 0, 0, .4);
    animation: commLabelPopUp .5s var(--ease) both, commLabelFloat 2.6s ease-in-out infinite .5s;
  }
  .comm-label-text { font-size: 12.5px; line-height: 1.45; }
  .comm-label-head { width: 100%; padding: 0 22px; }

  .comm-label-close { display: flex; top: 8px; right: 8px; transform: none; }

  /* Nút Vào phòng trong popup mời */
  .comm-label-cta { display: flex; width: 100%; }
  .comm-label-cta button {
    width: 100%;
    padding: 10px 12px;
    border-radius: 10px;
    border: none;
    background: #fff;
    color: #7c2bd1;
    font-family: var(--font);
    font-weight: 800;
    font-size: 13.5px;
    cursor: pointer;
  }
  .comm-label-cta button:active { transform: scale(.97); }

  /* Ô nhập tên + nút Vào phòng trong popup */
  .comm-label-join { display: flex; width: 100%; gap: 8px; }
  .comm-label-join input {
    flex: 1;
    min-width: 0;
    padding: 10px 12px;
    border-radius: 10px;
    border: 1px solid rgba(255, 255, 255, .4);
    background: rgba(0, 0, 0, .28);
    color: #fff;
    font-family: var(--font);
    font-size: 12.5px;
    font-weight: 600;
    outline: none;
  }
  .comm-label-join input::placeholder { color: rgba(255, 255, 255, .7); font-weight: 400; }
  .comm-label-join button {
    flex-shrink: 0;
    padding: 10px 16px;
    border-radius: 10px;
    border: none;
    background: #fff;
    color: #7c2bd1;
    font-family: var(--font);
    font-weight: 800;
    font-size: 12.5px;
    cursor: pointer;
  }
  .comm-label-join button:active { transform: scale(.96); }

  .community-chat-label.comm-label-hidden { display: none; }
}

@keyframes commLabelPopUp {
  0%   { transform: translateY(140%); opacity: 0; }
  60%  { transform: translateY(-5px); opacity: 1; }
  100% { transform: translateY(0);     opacity: 1; }
}
@keyframes commLabelFloat {
  0%, 100% { box-shadow: 0 14px 36px rgba(124, 58, 237, .5), 0 6px 18px rgba(0, 0, 0, .4); }
  50%      { box-shadow: 0 16px 46px rgba(219, 39, 119, .62), 0 6px 18px rgba(0, 0, 0, .4); }
}

.community-name-wrap { display: flex; gap: 8px; }

.community-name-wrap input {
  flex: 1;
  min-width: 0;
  padding: 12px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--line);
  background: rgba(255, 255, 255, .07);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.community-name-wrap input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(10, 200, 185, .15); }
.community-name-wrap input::placeholder { color: var(--text-faint); }

.community-name-wrap button {
  padding: 12px 22px;
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff;
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  white-space: nowrap;
  transition: filter .2s, transform .15s;
}
.community-name-wrap button:hover  { filter: brightness(1.08); }
.community-name-wrap button:active { transform: scale(.96); }

#communityRoom {
  flex-direction: column;
  border: 1.5px solid var(--line);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: rgba(0, 0, 0, .22);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, .04), var(--shadow-soft);
}

.community-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 15px;
  background: linear-gradient(90deg, var(--teal), var(--teal-deep));
}

.community-header-left { display: flex; align-items: center; gap: 12px; }

.community-room-title { color: #fff; font-weight: 700; font-size: 14px; }

.community-online-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  color: #d7fff0;
  font-size: 12px;
  font-weight: 600;
}

.community-online-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: #4ade80;
  box-shadow: 0 0 6px rgba(74, 222, 128, .8);
  animation: commBlink 1.4s ease-in-out infinite;
}

@keyframes commBlink {
  0%, 100% { opacity: 1; }
  50%      { opacity: .2; }
}

.community-exit-btn {
  background: rgba(255, 255, 255, .18);
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 20px;
  color: #fff;
  font-size: 11px;
  padding: 4px 11px;
  cursor: pointer;
  transition: background .15s;
}
.community-exit-btn:hover { background: rgba(255, 255, 255, .3); }

/* Nhóm nút bên phải tiêu đề (Xoá tất cả + Thoát) */
.community-header-actions { display: flex; align-items: center; gap: 8px; }

/* Nút "Xoá tất cả" — chỉ admin thấy */
.community-resetall-btn {
  background: rgba(220, 38, 38, .85);
  border: 1px solid rgba(255, 255, 255, .25);
  border-radius: 20px;
  color: #fff;
  font-family: var(--font);
  font-size: 11px;
  font-weight: 700;
  padding: 4px 11px;
  cursor: pointer;
  white-space: nowrap;
  transition: background .15s;
}
.community-resetall-btn:hover { background: rgba(220, 38, 38, 1); }

/* Nút "Xoá" trên từng tin nhắn — chỉ admin thấy */
.comm-admin-del {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  margin-top: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(220, 38, 38, .4);
  background: rgba(220, 38, 38, .14);
  color: #fca5a5;
  font-family: var(--font);
  font-size: 12px;
  line-height: 1.6;
  cursor: pointer;
  transition: background .15s, color .15s;
}
.comm-admin-del:hover { background: rgba(220, 38, 38, .32); color: #fff; }

.community-messages {
  height: 460px;
  overflow-y: auto;
  overscroll-behavior: contain; /* cuộn trong khung chat không kéo trôi cả trang */
  padding: 14px 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 11px;
  transition: height .25s ease;
}

.community-messages-expanded { height: 600px; }

.community-loading,
.community-empty {
  color: var(--text-faint);
  font-size: 13px;
  text-align: center;
  margin: auto;
  font-style: italic;
}

/* Tin nhắn */
.comm-msg {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  max-width: 86%;
}

.comm-msg-me     { align-self: flex-end;   flex-direction: row-reverse; }
.comm-msg-other  { align-self: flex-start; }
.comm-msg-system { align-self: center; max-width: 100%; }

/* Cột nội dung (tên, bong bóng, cảm xúc, giờ) */
.comm-msg-content {
  display: flex;
  flex-direction: column;
  min-width: 0;
  max-width: 100%;
}
.comm-msg-me    .comm-msg-content { align-items: flex-end; }
.comm-msg-other .comm-msg-content { align-items: flex-start; }

/* Avatar người chat (chỉ hiện cho người khác, bên trái) */
.comm-avatar {
  flex-shrink: 0;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  color: #fff;
  text-shadow: 0 1px 2px rgba(0, 0, 0, .35);
  box-shadow: 0 2px 6px rgba(0, 0, 0, .3);
  user-select: none;
}
.comm-avatar-owner {
  background: linear-gradient(135deg, #ffe187, #eab308 45%, #b8860b);
  box-shadow: 0 0 10px rgba(234, 179, 8, .6);
  font-size: 16px;
}

.comm-name {
  font-size: 11px;
  font-weight: 700;
  margin-bottom: 3px;
  opacity: .78;
  padding: 0 2px;
}

.comm-msg-me    .comm-name { color: var(--teal); }
.comm-msg-other .comm-name { color: var(--gold); }

.comm-bubble {
  padding: 9px 14px;
  border-radius: 16px;
  font-size: 14px;
  line-height: 1.55;
  word-break: break-word;
  overflow-wrap: anywhere;
  color: var(--text);
  box-shadow: 0 2px 8px rgba(0, 0, 0, .18);
}

.comm-msg-me .comm-bubble {
  background: linear-gradient(135deg, var(--teal-deep), var(--teal));
  color: #fff;
  border-bottom-right-radius: 4px;
}

.comm-msg-other .comm-bubble {
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(200, 170, 110, .18);
  border-bottom-left-radius: 4px;
}

.comm-msg-system .comm-bubble {
  background: rgba(200, 170, 110, .1);
  border: 1px solid rgba(200, 170, 110, .2);
  color: var(--text-dim);
  font-size: 12px;
  font-style: italic;
  border-radius: 20px;
  padding: 5px 14px;
  box-shadow: none;
}

.comm-time {
  font-size: 10px;
  color: var(--text-faint);
  margin-top: 3px;
  padding: 0 4px;
}

/* Link trong tin nhắn */
.comm-link {
  color: #7dd3fc;
  font-weight: 600;
  text-decoration: underline;
  text-underline-offset: 2px;
  word-break: break-all;
  transition: color .15s;
}
.comm-link:hover { color: #38bdf8; }
/* Trong bong bóng của chính mình (nền xanh) link sáng hơn cho dễ đọc */
.comm-msg-me .comm-link { color: #e0f2fe; }
.comm-msg-me .comm-link:hover { color: #fff; }

/* ===== Ảnh trong tin nhắn ===== */
.comm-img-link { display: inline-block; margin-top: 2px; line-height: 0; }
.comm-img {
  max-width: 230px;
  max-height: 250px;
  width: auto;
  height: auto;
  border-radius: 12px;
  display: block;
  cursor: pointer;
  border: 1px solid rgba(255, 255, 255, .12);
  transition: transform .15s var(--ease);
}
.comm-img:hover { transform: scale(1.02); }
/* Bong bóng chỉ chứa ảnh: bỏ nền cho gọn */
.comm-bubble-img {
  background: none !important;
  border: none !important;
  padding: 0 !important;
  box-shadow: none !important;
}

/* Icon nội tuyến (nút trả lời kiểu Facebook) */
.comm-ico { vertical-align: -2px; }

/* ===== Nút gửi ảnh ===== */
.community-input-row { align-items: center; }
.community-image-btn {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1.5px solid var(--line);
  background: rgba(255, 255, 255, .06);
  color: #4da8ff;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .12s;
}
.community-image-btn:hover { background: rgba(77, 168, 255, .16); border-color: #4da8ff; }
.community-image-btn:active { transform: scale(.92); }
.community-image-btn:disabled { opacity: .4; cursor: default; }

/* ===== Cảm xúc + Trả lời (kiểu Facebook) ===== */

/* Tóm tắt cảm xúc đã thả, hiển thị ngay dưới tin nhắn */
.comm-react-summary {
  display: inline-flex;
  align-items: center;
  margin-top: 5px;
  padding: 2px 9px 2px 7px;
  border-radius: var(--radius-pill);
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .1);
  width: fit-content;
}
.comm-sum-emoji { font-size: 12px; line-height: 1; margin-right: -2px; }
.comm-sum-count { margin-left: 6px; font-size: 11px; font-weight: 700; color: var(--text-dim); }

/* Hàng hành động: chỉ còn nút Thích + Trả lời */
.comm-actions { display: flex; align-items: center; gap: 5px; margin-top: 3px; }
.comm-react-wrap { position: relative; display: inline-flex; }

/* Nút Thích chính + nút Trả lời */
.comm-react-trigger,
.comm-reply-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  border: 1px solid rgba(200, 170, 110, .2);
  background: rgba(255, 255, 255, .06);
  color: var(--text-dim);
  font-family: var(--font);
  font-size: 11px;
  font-weight: 600;
  line-height: 1.6;
  cursor: pointer;
  transition: background .15s, color .15s, border-color .15s, transform .12s var(--ease);
}
.comm-react-trigger:hover,
.comm-reply-btn:hover { background: rgba(255, 255, 255, .12); color: var(--text); }
.comm-react-trigger:active { transform: scale(.94); }
.comm-trig-emoji { font-size: 13px; line-height: 1; }

/* Đổi màu nút Thích theo cảm xúc đã chọn */
.comm-react-trigger.active-like  { color: #93c5fd; border-color: rgba(59,130,246,.5); background: rgba(59,130,246,.16); }
.comm-react-trigger.active-heart { color: #fda4af; border-color: rgba(244,63,94,.5);  background: rgba(244,63,94,.16); }
.comm-react-trigger.active-haha  { color: #fcd34d; border-color: rgba(245,158,11,.5); background: rgba(245,158,11,.16); }
.comm-react-trigger.active-sad   { color: #fde68a; border-color: rgba(234,179,8,.5);  background: rgba(234,179,8,.16); }

/* Bảng cảm xúc bung ra khi rê chuột vào nút Thích */
.comm-react-popup {
  position: absolute;
  bottom: calc(100% + 8px);
  left: 0;
  display: flex;
  gap: 1px;
  padding: 5px 7px;
  background: #141d30;
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: var(--radius-pill);
  box-shadow: 0 10px 28px rgba(0, 0, 0, .5);
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px) scale(.85);
  transform-origin: bottom left;
  transition: opacity .16s var(--ease), transform .16s var(--ease), visibility .16s;
  z-index: 30;
  white-space: nowrap;
}
/* Cầu nối vô hình: rê từ nút lên bảng không bị mất hover */
.comm-react-popup::after {
  content: '';
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  height: 10px;
}
.comm-react-wrap:hover .comm-react-popup {
  opacity: 1;
  visibility: visible;
  transform: translateY(0) scale(1);
}
/* Tin của mình canh phải -> bảng canh mép phải */
.comm-msg-me .comm-react-popup { left: auto; right: 0; transform-origin: bottom right; }

.comm-react-opt {
  position: relative;
  background: none;
  border: none;
  cursor: pointer;
  font-size: 20px;
  line-height: 1;
  padding: 2px 3px;
  border-radius: 50%;
  transition: transform .14s var(--ease);
}
.comm-react-opt:hover { transform: scale(1.3) translateY(-5px); }
.comm-react-opt.active { background: rgba(255, 255, 255, .14); }

/* Nhãn nhỏ trên mỗi emoji khi rê chuột */
.comm-react-opt::before {
  content: attr(data-label);
  position: absolute;
  bottom: calc(100% + 6px);
  left: 50%;
  transform: translateX(-50%);
  background: #000;
  color: #fff;
  font-size: 10px;
  font-weight: 600;
  padding: 2px 7px;
  border-radius: 10px;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity .12s;
}
.comm-react-opt:hover::before { opacity: .92; }

/* Nút trả lời — tông vàng kim nhẹ */
.comm-reply-btn { color: rgba(200, 170, 110, .85); }
.comm-reply-btn:hover { border-color: rgba(200, 170, 110, .5); color: var(--gold-soft); }

.comm-reply-quote {
  font-size: 11.5px;
  color: var(--text-dim);
  background: rgba(255, 255, 255, .05);
  border-left: 2px solid var(--teal);
  padding: 5px 10px;
  border-radius: 6px;
  margin-bottom: 4px;
  max-width: 100%;
  word-break: break-word;
}

.comm-reply-preview {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 8px 14px;
  background: rgba(10, 200, 185, .09);
  border-top: 1px solid rgba(255, 255, 255, .07);
  font-size: 12px;
  color: var(--text);
}

.comm-reply-preview-text {
  flex: 1;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.comm-reply-preview-text b { color: var(--teal); }

.comm-reply-cancel {
  background: none;
  border: none;
  color: var(--text-dim);
  font-size: 15px;
  cursor: pointer;
  padding: 0 4px;
  line-height: 1;
  flex-shrink: 0;
}
.comm-reply-cancel:hover { color: var(--text); }

/* Input gửi tin nhắn */
.community-input-row {
  display: flex;
  gap: 8px;
  padding: 11px 12px;
  border-top: 1px solid rgba(255, 255, 255, .07);
  background: rgba(0, 0, 0, .18);
}

.community-input-row input {
  flex: 1;
  min-width: 0;
  padding: 11px 16px;
  border-radius: var(--radius-pill);
  border: 1.5px solid var(--line);
  background: rgba(255, 255, 255, .07);
  color: var(--text);
  font-family: var(--font);
  font-size: 14px;
  outline: none;
  transition: border-color .2s, box-shadow .2s;
}
.community-input-row input:focus { border-color: var(--teal); box-shadow: 0 0 0 3px rgba(10, 200, 185, .15); }
.community-input-row input::placeholder { color: var(--text-faint); }

.community-input-row button:not(.community-image-btn) {
  padding: 11px 22px;
  border-radius: var(--radius-pill);
  border: none;
  background: linear-gradient(135deg, var(--teal), var(--teal-deep));
  color: #fff;
  font-family: var(--font);
  font-weight: 700;
  font-size: 14px;
  cursor: pointer;
  transition: filter .2s, transform .12s;
  white-space: nowrap;
}
.community-input-row button:not(.community-image-btn):hover    { filter: brightness(1.08); }
.community-input-row button:not(.community-image-btn):active   { transform: scale(.96); }
.community-input-row button:not(.community-image-btn):disabled { opacity: .35; cursor: default; }

@media (max-width: 768px) {
  .community-name-wrap input  { font-size: 16px; padding: 11px 13px; } /* >=16px: chống iOS tự phóng to khi focus */
  .community-name-wrap input::placeholder { font-size: 12.5px; }
  .community-name-wrap button { padding: 11px 15px; font-size: 12.5px; white-space: nowrap; flex-shrink: 0; }
  .community-messages { height: 58vh; max-height: 440px; min-height: 300px; }
  .community-messages-expanded { height: 64vh; max-height: 520px; }
  .comm-bubble { font-size: 13.5px; }
  .comm-react-trigger, .comm-reply-btn { font-size: 10.5px; padding: 3px 9px; }
  .comm-react-opt { font-size: 19px; }

  /* --- Hàng nhập tin nhắn: gọn lại để không tràn / mất nút Gửi --- */
  .community-input-row { gap: 6px; padding: 9px 9px; }
  .community-input-row input { font-size: 16px; padding: 10px 13px; } /* >=16px: chống iOS tự phóng to khi focus */
  .community-input-row button:not(.community-image-btn) { padding: 10px 15px; font-size: 13px; }
  .community-image-btn { width: 38px; height: 38px; }
  .community-image-btn svg { width: 20px; height: 20px; }

  /* --- Tiêu đề phòng gọn hơn, không xuống dòng --- */
  .community-header { padding: 10px 12px; }
  .community-header-left { gap: 7px; min-width: 0; }
  .community-room-title { font-size: 13px; white-space: nowrap; }
  .community-online-badge { font-size: 11px; flex-shrink: 0; white-space: nowrap; }
  .community-exit-btn { font-size: 11px; padding: 5px 11px; white-space: nowrap; flex-shrink: 0; }

  /* Nền aurora: tắt chuyển động trên mobile cho mượt, tránh "vỡ hình" khi cuộn/gõ phím */
  body::after { filter: none; }
}
/* ===== END PHÒNG CHAT CỘNG ĐỒNG ===== */

.comm-error {
  color: #fca5a5;
  font-size: 12.5px;
  text-align: center;
  margin: auto;
  padding: 11px 14px;
  background: rgba(220, 38, 38, .12);
  border: 1px solid rgba(220, 38, 38, .25);
  border-radius: 10px;
  line-height: 1.6;
}

/* ===== TIN NHẮN GHIM ===== */
.comm-pinned-collapse { flex-shrink: 0; }
.comm-pinned-collapse.is-open { max-height: none; overflow: visible; }

.comm-pinned-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 14px;
  background: linear-gradient(135deg, rgba(10, 200, 185, .1), rgba(200, 170, 110, .08));
  border-top: 2px solid rgba(10, 200, 185, .35);
  border-bottom: 1px solid rgba(200, 170, 110, .2);
  cursor: pointer;
  user-select: none;
  flex-shrink: 0;
  transition: background .15s;
}
.comm-pinned-bar:hover { background: linear-gradient(135deg, rgba(10, 200, 185, .15), rgba(200, 170, 110, .13)); }

.comm-pinned-bar-icon { font-size: 15px; flex-shrink: 0; }

.comm-pinned-bar-text {
  flex: 1;
  min-width: 0;
  font-size: 12.5px;
  color: var(--text);
  opacity: .85;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comm-pinned-bar-chevron { font-size: 11px; color: var(--teal); white-space: nowrap; flex-shrink: 0; }

.comm-pinned-close {
  margin-top: 8px;
  font-size: 11px;
  color: var(--teal);
  cursor: pointer;
  display: inline-block;
}
.comm-pinned-close:hover { text-decoration: underline; }

.comm-pinned {
  display: flex;
  gap: 11px;
  padding: 13px 15px;
  background: rgba(10, 200, 185, .05);
  border-bottom: 1px solid rgba(200, 170, 110, .15);
  flex-shrink: 0;
}

.comm-pinned-icon { font-size: 16px; flex-shrink: 0; margin-top: 2px; opacity: .85; }
.comm-pinned-body { flex: 1; min-width: 0; }

.comm-pinned-name {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  font-family: var(--font);
  font-size: 12px;
  font-weight: 800;
  letter-spacing: .2px;
  margin-bottom: 7px;
  padding: 3px 12px 3px 10px;
  border-radius: 20px;
  color: #2a1d04;
  background: linear-gradient(135deg, #ffe187 0%, #eab308 30%, #b8860b 62%, #7c5510 100%);
  border: 1px solid rgba(255, 235, 175, .9);
  box-shadow:
    0 0 8px rgba(234, 179, 8, .6),
    0 0 16px rgba(184, 134, 11, .35),
    inset 0 1px 0 rgba(255, 255, 255, .75);
}
.comm-pinned-name::before { content: "💎"; font-size: 11px; }

.comm-pinned-text {
  font-size: 13px;
  color: var(--text);
  line-height: 1.7;
  opacity: .92;
}

@media (max-width: 768px) {
  .comm-pinned { padding: 11px 12px; }
  .comm-pinned-text { font-size: 12.5px; }
  .comm-pinned-bar { padding: 10px 12px; }
  .comm-pinned-bar-text { font-size: 11.5px; }
}
/* ===== END TIN NHẮN GHIM ===== */


/* ===== Polish nhỏ (mobile/desktop): bỏ ô xám khi chạm, con trỏ tay ===== */
.community-chat-section button,
.community-chat-label,
.comm-link,
.floating-contact a { -webkit-tap-highlight-color: transparent; }

/* ===== Tối ưu mượt cho điện thoại: GIỮ hiệu ứng ánh sáng, chỉ làm nhẹ quầng nền aurora ===== */
@media (max-width: 768px) {
  /* Quầng sáng nền: vẫn hiển thị nhưng giảm độ mờ (blur) để cuộn/gõ phím mượt hơn; không chạy động */
  body::after { filter: none !important; }
}


/* ===== Khối giới thiệu (H3) + Câu hỏi thường gặp (FAQ) ===== */
.about-seo h3 {
  margin: 18px 0 8px;
  font-size: 16px;
  font-weight: 700;
  color: var(--gold-soft);
}
.seo-faq {
  margin: 18px auto 0;
  max-width: none;
  text-align: left;
  padding: 22px 24px;
  background: rgba(255, 255, 255, .035);
  border: 1px solid rgba(200, 170, 110, .18);
  border-radius: var(--radius-md);
}
.seo-faq h2 {
  margin: 0 0 14px;
  font-size: 20px;
  font-weight: 700;
  color: var(--gold-soft);
  letter-spacing: .2px;
}
.faq-item { padding: 12px 0; border-top: 1px solid rgba(200, 170, 110, .14); }
.faq-item:first-of-type { border-top: none; padding-top: 0; }
.faq-q { margin: 0 0 6px; font-size: 15px; font-weight: 700; color: var(--text); }
.faq-a { margin: 0; font-size: 14px; line-height: 1.7; color: var(--text-dim); }
@media (max-width: 768px) {
  .seo-faq { padding: 18px 16px; }
  .seo-faq h2 { font-size: 18px; }
  .faq-q { font-size: 14px; }
  .faq-a { font-size: 13.5px; }
}


/* ===== Huy hiệu kênh chính thức ===== */
.lms-official {
  display: flex; align-items: center; flex-wrap: wrap; gap: 8px; justify-content: center;
  margin: 14px auto 0; max-width: none; padding: 10px 16px;
  background: linear-gradient(135deg, rgba(16, 185, 129, .12), rgba(200, 170, 110, .08));
  border: 1px solid rgba(16, 185, 129, .35); border-radius: var(--radius-md);
}
.lms-official-badge {
  display: inline-flex; align-items: center; gap: 5px;
  background: linear-gradient(135deg, #10b981, #059669); color: #fff;
  font-weight: 800; font-size: 12.5px; padding: 4px 12px; border-radius: var(--radius-pill);
  white-space: nowrap; box-shadow: 0 0 10px rgba(16, 185, 129, .45);
}
.lms-official-text { font-size: 12.5px; font-weight: 600; color: var(--gold-soft); }
@media (max-width: 768px) {
  .lms-official { font-size: 12px; padding: 9px 13px; }
  .lms-official-text { font-size: 12px; }
}


/* ===== Nút nổi 2 góc (mobile + PC): trái = Vào phòng, phải = liên hệ Zalo/Messenger ===== */
.community-chat-label { display: none !important; }
@keyframes lmsCycleA { 0%,42%{opacity:1} 54%,96%{opacity:0} 100%{opacity:1} }
@keyframes lmsCycleB { 0%,42%{opacity:0} 54%,96%{opacity:1} 100%{opacity:0} }
.lms-dock {
  position: fixed; z-index: 1000; display: flex; align-items: center; height: 56px;
  bottom: calc(16px + env(safe-area-inset-bottom, 0px));
  animation: lmsDockIn .45s ease both;
}
@keyframes lmsDockIn { from { opacity: 0; transform: translateY(12px); } to { opacity: 1; transform: translateY(0); } }
.lms-dock-left  { left: 14px; }
.lms-dock-right { right: 14px; }
body.lms-in-room .lms-dock-left { display: none !important; }
.lms-contact { position: relative; }
.lms-contact-toggle {
  position: relative; width: 56px; height: 56px; border-radius: 50%; padding: 0; overflow: hidden;
  border: 1px solid rgba(255,255,255,.3);
  background: linear-gradient(180deg, #2b8bff, #0050d8);
  box-shadow: 0 8px 22px rgba(0,0,0,.45); cursor: pointer;
}
.lms-ic { position: absolute; inset: 0; margin: auto; width: 34px; height: 34px; object-fit: contain; border-radius: 50%; }
.lms-ic-zalo { animation: lmsCycleA 4.5s ease-in-out infinite; }
.lms-ic-mess { animation: lmsCycleB 4.5s ease-in-out infinite; }
.lms-contact-close { position: absolute; inset: 0; display: flex; align-items: center; justify-content: center; color: #fff; font-size: 20px; opacity: 0; }
.lms-contact.lms-open .lms-ic { opacity: 0 !important; animation: none; }
.lms-contact.lms-open .lms-contact-close { opacity: 1; }
.lms-contact-options {
  position: absolute; right: 0; bottom: calc(100% + 10px);
  display: flex; flex-direction: column; align-items: flex-end; gap: 8px;
  opacity: 0; visibility: hidden; transform: translateY(8px);
  transition: opacity .18s ease, transform .18s ease, visibility .18s;
}
.lms-contact.lms-open .lms-contact-options { opacity: 1; visibility: visible; transform: translateY(0); }
.lms-opt {
  display: inline-flex; align-items: center; gap: 9px; padding: 9px 16px 9px 10px;
  border-radius: 999px; background: linear-gradient(180deg, #2b8bff, #0050d8);
  color: #fff; font-family: var(--font); font-weight: 700; font-size: 13.5px;
  text-decoration: none; white-space: nowrap; border: 1px solid rgba(255,255,255,.28);
  box-shadow: 0 6px 16px rgba(0,0,0,.4);
}
.lms-opt img { width: 26px; height: 26px; border-radius: 50%; object-fit: contain; background: rgba(255,255,255,.14); }
.lms-opt:nth-child(2) { background: linear-gradient(180deg, #3aa0ff, #0062d6); }
.lms-room {
  display: inline-flex; align-items: center; gap: 7px; padding: 10px 16px;
  border-radius: 999px; border: 1px solid rgba(255,255,255,.28);
  background: linear-gradient(135deg, #7c3aed 0%, #db2777 55%, #f59e0b 100%);
  color: #fff; font-family: var(--font); font-weight: 800; font-size: 13px;
  cursor: pointer; white-space: nowrap; box-shadow: 0 8px 22px rgba(124,58,237,.5);
}
.lms-room-dot { width: 8px; height: 8px; border-radius: 50%; background: #4ade80; box-shadow: 0 0 0 2px rgba(255,255,255,.5), 0 0 7px #4ade80; }
.lms-room, .lms-contact-toggle, .lms-opt { transition: transform .15s ease, box-shadow .15s ease, filter .15s ease; }
.lms-room:hover, .lms-contact-toggle:hover { transform: translateY(-2px); filter: brightness(1.06); box-shadow: 0 12px 26px rgba(0,0,0,.5); }
.lms-room:active, .lms-contact-toggle:active { transform: scale(.95); }
.lms-opt:hover { transform: translateX(-3px); filter: brightness(1.06); }
/* Vào phòng xong: ẩn nút "Vào phòng", giữ nút Zalo; trên mobile dời lên góc trên-phải để không che ô gửi tin */
@media (max-width: 768px) {
  body.lms-in-room .lms-dock-right { bottom: auto; top: calc(12px + env(safe-area-inset-top, 0px)); }
  body.lms-in-room .lms-contact-options { bottom: auto; top: calc(100% + 10px); }
}
@media (prefers-reduced-motion: reduce) {
  .lms-ic-zalo, .lms-ic-mess { animation: none; }
  .lms-ic-mess { opacity: 0; }
}

/* ===== Thanh điều hướng trên cùng: Trang Chủ / Lịch Sử Mua Hàng ===== */
.lms-topnav {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: stretch;            /* 2 nút cao bằng nhau */
  justify-content: center;
  gap: 12px;
  max-width: 480px;                /* gom giữa, cân đối */
  margin: 0 auto;
  padding: 18px 14px 4px;
}
.lms-topbtn {
  flex: 1 1 0;                     /* chia đều -> 2 nút RỘNG BẰNG NHAU */
  min-width: 0;
  max-width: 230px;
  box-sizing: border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;        /* nội dung canh giữa */
  gap: 8px;
  height: 46px;                   /* cùng chiều cao chính xác */
  padding: 0 18px;
  border-radius: var(--radius-pill);
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  border: 1.5px solid transparent; /* cùng độ dày viền 2 nút */
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  -webkit-tap-highlight-color: transparent;
  transition: transform .18s var(--ease), box-shadow .18s var(--ease),
              background .18s var(--ease), color .18s var(--ease),
              border-color .18s var(--ease), filter .18s var(--ease);
}
.lms-topbtn:active { transform: scale(.97); }

/* Trang Chủ — vàng kim đặc */
.lms-topbtn-primary {
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: #2a1d04;
  box-shadow: 0 10px 28px rgba(200, 170, 110, .35);
}
.lms-topbtn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.05);
  color: #2a1d04;
  box-shadow: 0 14px 34px rgba(200, 170, 110, .5);
}

/* Lịch Sử Mua Hàng — viền vàng, hover đổ nền vàng */
.lms-topbtn-ghost {
  background: rgba(255, 255, 255, .04);
  color: var(--gold-soft);
  border: 1.5px solid rgba(200, 170, 110, .42);
}
.lms-topbtn-ghost:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: #2a1d04;
  border-color: transparent;
  box-shadow: 0 14px 34px rgba(200, 170, 110, .5);
}

@media (max-width: 480px) {
  .lms-topnav { gap: 8px; padding: 14px 10px 2px; }
  .lms-topbtn { height: 44px; padding: 0 12px; font-size: 13.5px; }
}


/* ===== HEADER MENU (trang bảo trì) — tông vàng kim đồng bộ site chính ===== */
.lms-maint-header {
  position: sticky;
  top: 0;
  z-index: 50;
  width: 100%;
  background: #000;
  box-shadow: 0 6px 26px rgba(0, 0, 0, .6);
}
.lms-maint-header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 10px 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

/* Logo + tên thương hiệu */
.lms-brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}
.lms-brand-logo {
  height: 42px;
  width: auto;
  border-radius: 8px;
  transition: filter .3s ease;
}
.lms-brand:hover .lms-brand-logo { filter: drop-shadow(0 0 8px rgba(250, 189, 3, .55)); }
.lms-brand-name {
  font-size: 20px;
  font-weight: 800;
  letter-spacing: .3px;
  line-height: 1;
  background: linear-gradient(100deg, #fff7e0 0%, #ffd24a 55%, #fabd03 100%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.lms-brand-name b { -webkit-text-fill-color: #fabd03; color: #fabd03; }

/* Menu điều hướng bên phải */
.lms-maint-nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.lms-maint-nav a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  color: var(--gold-soft);
  border: 1.5px solid rgba(200, 170, 110, .42);
  background: rgba(255, 255, 255, .04);
  white-space: nowrap;
  -webkit-tap-highlight-color: transparent;
  transition: transform .18s var(--ease), background .18s var(--ease),
              color .18s var(--ease), border-color .18s var(--ease), box-shadow .18s var(--ease);
}
.lms-maint-nav a:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, var(--gold-soft), var(--gold));
  color: #2a1d04;
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(200, 170, 110, .45);
}
.lms-maint-nav a:active { transform: scale(.97); }
/* Nút nổi bật (CTA Zalo) — vàng kim đặc */
.lms-maint-nav a.is-primary {
  background: linear-gradient(180deg, #ffd24a, #f0a800);
  color: #1a1205;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(250, 189, 3, .4);
}
.lms-maint-nav a.is-primary:hover { filter: brightness(1.06); box-shadow: 0 10px 22px rgba(250, 189, 3, .55); }

/* Nút "Lịch Sử Mua Hàng": vàng kim đặc -> hover đổ màu XANH ngọc + vệt sáng lướt (đồng bộ trang chính) */
.lms-maint-nav a.is-history {
  position: relative;
  overflow: hidden;
  background: linear-gradient(180deg, #ffd24a, #f0a800);
  color: #1a1205;
  border-color: transparent;
  box-shadow: 0 6px 16px rgba(250, 189, 3, .4);
}
/* Vệt sáng trắng lướt qua khi rê chuột */
.lms-maint-nav a.is-history::before {
  content: '';
  position: absolute;
  top: 0;
  left: -85%;
  width: 55%;
  height: 100%;
  background: linear-gradient(120deg, transparent, rgba(255, 255, 255, .55), transparent);
  transform: skewX(-22deg);
  transition: left .6s ease;
  pointer-events: none;
  z-index: 2;
}
.lms-maint-nav a.is-history:hover::before { left: 135%; }
/* Hover: đổ màu XANH ngọc + glow xanh đồng tông */
.lms-maint-nav a.is-history:hover {
  transform: translateY(-2px);
  background: linear-gradient(180deg, #44dba8, #1fb389);
  color: #06291e;
  border-color: transparent;
  box-shadow: 0 10px 24px rgba(56, 211, 159, .5);
}

@media (max-width: 768px) {
  .lms-maint-header-inner { padding: 8px 12px; }
  .lms-brand-logo { height: 34px; }
  .lms-brand-name { font-size: 16px; }
  .lms-maint-nav { gap: 6px; }
  .lms-maint-nav a { padding: 7px 12px; font-size: 12.5px; }
}
@media (max-width: 480px) {
  .lms-brand-name { display: none; }        /* màn nhỏ: chỉ giữ logo, nhường chỗ cho 2 nút điều hướng */
  .lms-maint-header-inner { gap: 8px; }
  .lms-maint-nav a { padding: 7px 11px; font-size: 12px; }
}
/* ===== END HEADER MENU (trang bảo trì) ===== */