@charset "UTF-8";

/* Theme variables (default = home) */
:root{
  --ta-primary: #00bfa5;
  --ta-primary-rgb: 0,191,165;
  --ta-primary-contrast: #ffffff;
  --ta-btn-gradient: linear-gradient(135deg,#37e5c0 0%, #53b3ff 100%);
  --ta-menu-bg: #ffffff;
  --ta-menu-gradient: linear-gradient(135deg,#c0f4e6,#a8f0db);
  --ta-card-bg: #dff8f3;
  --ta-text: #222;
}

body.theme-home{ /* explicit home theme - keeps :root defaults */
}

body.theme-neon{
  --ta-primary: #7ef0ff;
  --ta-primary-rgb: 126,240,255;
  --ta-primary-contrast: #05121a;
  --ta-btn-gradient: linear-gradient(135deg,#7ef0ff 0%, #9b7aff 100%);
  --ta-menu-bg: #081320;
  --ta-menu-gradient: linear-gradient(135deg,#061826,#0d1430);
  --ta-card-bg: rgba(126,240,255,0.08);
  --ta-text: #e6f9ff;
}

/* ===== HEADER / MENU CHÍNH ===== */
.main-header {
  background: var(--ta-menu-bg, #ffffff);
  border-bottom: 3px solid var(--ta-primary);
  box-shadow: 0 2px 12px rgba(var(--ta-primary-rgb), 0.15);
  position: sticky;
  top: 0;
  z-index: 10000;
  width: 100%;
  padding: 6px 0;
}

/* ===== CONTAINER ===== */
.main-header .container {
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 12px;
  width: 100%;
  margin: 0;
  padding: 12px 12px;
  box-sizing: border-box;
}

/* Responsive: giảm padding container trên màn hình nhỏ để tránh tràn */
@media (max-width: 992px) {
  .main-header .container { padding: 12px 20px; }
}

/* Desktop: make nav area full-width while keeping logo/auth fixed */
@media (min-width: 992px) {
  .main-header .container {
    max-width: 100%;
    padding: 12px 24px;
  }
  .logo-area { justify-self: start; }
  .nav__auth { justify-self: end; }
  .main-nav { justify-self: stretch; padding: 0 8px; }
  .main-nav ul { width: 100%; justify-content: space-between; gap: 20px; padding: 0 6px; }
  /* keep auth/menu items visually separated */
  .main-nav .nav-auth-item { margin-left: 12px; }
}

/* ===== LOGO ===== */
.logo-area {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  cursor: pointer;
}

.logo {
  width: 60px;
  height: 60px;
  object-fit: contain;
  animation: floatLogo 3s ease-in-out infinite;
  transition: transform 0.3s ease, filter 0.3s ease;
}

.logo-area:hover .logo {
  transform: scale(1.08);
  filter: drop-shadow(0 0 6px rgba(var(--ta-primary-rgb), 0.6));
}

.site-name {
  font-family: 'Baloo 2', sans-serif;
  font-weight: 700;
  font-size: 1.5rem;
  color: var(--ta-primary);
  margin: 0;
  letter-spacing: 0.3px;
  transition: color 0.3s ease;
}

.logo-area:hover .site-name {
  color: #25a38c;
}

/* Hiệu ứng logo nổi nhẹ */
@keyframes floatLogo {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-4px); }
}

/* ===== MENU CHÍNH ===== */
.main-nav {
  display: flex;
  align-items: center;
  margin-left: auto;
}

.main-nav ul {
  list-style: none;
  display: flex;
  gap: 22px;
  margin: 0;
  padding: 0;
  align-items: center; /* căn giữa item menu với nút Đăng nhập */
}

.main-nav li {
  display: flex;
  align-items: center;
}

.main-nav a {
  position: relative;
  text-decoration: none;
  color: var(--ta-text, #222);
  font-family: 'Baloo 2', sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  padding: 10px 18px;
  border-radius: 14px;
  transition: all 0.25s ease;
}

.main-nav a::after {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 0;
  width: 0%;
  height: 2px;
  background-color: var(--ta-primary);
  transition: width 0.3s ease;
}

.main-nav a:hover {
  color: var(--ta-primary);
  background: rgba(var(--ta-primary-rgb), 0.08);
}

.main-nav a:hover::after {
  width: 100%;
}

.main-nav a.active {
  background: var(--ta-primary);
  color: var(--ta-primary-contrast, #fff);
  box-shadow: 0 3px 8px rgba(var(--ta-primary-rgb), 0.3);
}

/* ===== KHU VỰC ĐĂNG NHẬP ===== */
.nav__auth {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  margin-left: 40px;
}

/* ===== NÚT ĐĂNG NHẬP ===== */
.btn-login {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2px;
  min-height: 56px;
  min-width: 116px;
  background: linear-gradient(135deg, #f7fffd 0%, #dff9f3 55%, #d5f0ff 100%);
  color: #103a35;
  font-family: 'Baloo 2', system-ui, sans-serif;
  font-weight: 800;
  font-size: 1rem;
  line-height: 1.05;
  padding: 9px 16px;
  border: 1px solid rgba(0, 191, 165, 0.18);
  border-radius: 18px;
  cursor: pointer;
  box-shadow:
    0 10px 22px rgba(0, 191, 165, 0.14),
    inset 0 1px 0 rgba(255,255,255,.7);
  transition: transform 0.2s ease, box-shadow 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  position: relative;
  z-index: 2;
}

.btn-login__primary {
  display: block;
  font-size: 0.98rem;
  font-weight: 800;
  letter-spacing: 0.01em;
}

.btn-login__secondary {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  color: rgba(16, 58, 53, 0.72);
  line-height: 1;
}

.btn-login:hover {
  transform: translateY(-1px);
  border-color: rgba(0, 191, 165, 0.34);
  background: linear-gradient(135deg, #ffffff 0%, #e9fffb 55%, #e2f5ff 100%);
  box-shadow:
    0 14px 28px rgba(0, 191, 165, 0.18),
    inset 0 1px 0 rgba(255,255,255,.82);
}

/* ===== ICON GOOGLE ===== */
.google-icon {
  width: 21px;
  height: 21px;
  object-fit: contain;
  display: inline-block;
  vertical-align: middle;
  transition: transform 0.25s ease;
}

.btn-login:hover .google-icon {
  transform: scale(1.06);
}

/* ==== AVATAR NGƯỜI DÙNG ==== */
#userInfo {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ẢNH AVATAR */
#userPhoto {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  cursor: pointer;
  border: 2px solid #00bfa5;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

/* Hiệu ứng hover chỉ trên ảnh */
#userPhoto:hover {
  transform: scale(1.1);
  box-shadow: 0 0 12px rgba(46, 191, 165, 0.6);
  border-color: #1fa58e;
}

/* Ẩn tên khỏi header */
#userName {
  display: none;
}

/* ==== DROPDOWN MENU DƯỚI AVATAR ==== */
#userMenu {
  position: absolute;
  top: 65px;
  right: 0;
  background: #ffffff;
  border-radius: 14px;
  min-width: 200px;
  display: none;
  flex-direction: column;
  overflow: hidden;
  z-index: 10002; /* ensure above header/nav */
  animation: fadeIn 0.25s ease;
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.1);
}

#userMenu.show {
  display: flex;
}

/* JS toggles `is-open`; đảm bảo cả hai class đều hiển thị menu */
#userMenu.is-open { display: flex; }

/* ====== USER NAME ====== */
#menuName {
  background: linear-gradient(135deg, #c0f4e6, #a8f0db); /* 🔹 Màu đậm hơn, gradient nhẹ */
  color: #117c66;
  font-weight: 700;
  font-size: 16px;
  cursor: default;
  border-bottom: 1px solid rgba(46, 191, 165, 0.25);
  text-align: center;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 14px 0;
  border-top-left-radius: 14px;
  border-top-right-radius: 14px;
  line-height: 1.4;
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.4);
}

/* ====== MỤC MENU ====== */
#userMenu div,
#userMenu a {
  padding: 12px 18px;
  font-family: "Baloo 2", sans-serif;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  color: #333;
  transition: background 0.25s ease, color 0.25s ease;
  cursor: pointer;
}

/* Hover cho mục khác (trừ tên) */
#userMenu a:hover {
  background: rgba(46, 191, 165, 0.1);
  color: #00bfa5;
}

/* Avatar sáng khi mở menu */
#userPhoto.active {
  box-shadow: 0 0 0 4px rgba(46, 191, 165, 0.3);
}

/* Hiệu ứng mượt khi menu xuất hiện */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(-8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Respect prefers-reduced-motion for decorative animations */
@media (prefers-reduced-motion: reduce) {
  .logo { animation: none !important; }
  #userMenu { animation: none !important; }
  .header-avatar.is-current { animation: none !important; }
}

/* ===== RESET ===== */
html, body {
  margin: 0;
  padding: 0;
  width: 100%;
  height: 100%;
  overflow-x: hidden;
  font-family: 'Baloo 2', sans-serif;
  background: #ffffff;
}
/* ===== OVERLAY (nếu dùng) ===== */
.menu-overlay[hidden] { display: none !important; }
.menu-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.35);
  backdrop-filter: blur(2px);
  z-index: 9998;
}

/* (Removed redundant external mobile logout — logout remains inside `#userMenu`) */

/* ===== HAMBURGER (tuỳ chọn) ===== */
.menu-toggle {
  display: none;
  background: transparent;
  border: 0;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle .bar {
  display: block;
  width: 26px;
  height: 3px;
  background: #00bfa5; /* TODO: chuyển sang var(--taedu) sau */
  border-radius: 2px;
  margin: 5px 0;
  transition: transform .25s ease, opacity .25s ease;
}
.main-nav .nav-auth-item {
  display: flex;
  align-items: center;
}

.main-nav .nav-auth-item a,
.main-nav .nav-auth-item button {
  color: var(--ta-text, #222);
}

@media (min-width: 992px) {
  .main-nav .nav-auth-item {
    margin-left: 18px;
  }
}

/* ===== NAV MOBILE SLIDE (tuỳ chọn) ===== */
@media (max-width: 992px) {
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    width: 100%;
    height: calc(100vh - 60px);
    background: var(--ta-menu-bg, #fff);
    box-shadow: 0 6px 30px rgba(0,0,0,.12);
    transform: translateY(-100%);
    transition: transform .28s ease;
    z-index: 10001;
    padding: 16px;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
  }
  body.nav-open { overflow: hidden; }
  body.nav-open .main-nav { transform: translateY(0); }

  /* Khi menu chính mở trên mobile, hiển thị nội dung dropdown của avatar trong menu */
  body.nav-open #userMenu,
  body.nav-open #userMenu.is-open,
  body.nav-open #userMenu.show {
    display: flex;
    position: static;
    top: auto;
    right: auto;
    width: 100%;
    min-width: auto;
    margin: 8px 0 0 0;
    box-shadow: none;
    border-radius: 12px;
    background: transparent;
    padding: 0;
    animation: none;
    flex-direction: column;
  }

  /* Bọc lại nội dung userMenu để trông giống menu trong ảnh */
  body.nav-open #userMenu .um-head{
    background: linear-gradient(135deg, #c8f3ec, #a8f0db);
    padding: 12px;
    border-radius: 10px;
    margin-bottom: 8px;
    align-items: center;
    text-align: center;
  }
  body.nav-open #userMenu .um-list{ margin: 8px 0; }
  body.nav-open #userMenu .um-item{ background: transparent; padding: 12px 8px; }
  body.nav-open #userMenu .um-logout{ width:100%; margin:8px 0 0; }

  /* Ensure theme toggle inside mobile user menu is readable */
  body.nav-open .header-theme-toggle .header-theme-slider__track {
    background: var(--ta-menu-gradient);
    color: var(--ta-text);
  }
}

/* ===== Theme slider (avatar menu) ===== */
.header-theme-toggle { padding: 8px 12px; }
.header-theme-toggle__label { font-size: 0.9rem; margin: 0 0 8px; color: var(--ta-text); font-weight:700; }
.header-theme-slider { width: 220px; max-width: 100%; margin: 0 auto; }
.header-theme-slider__track {
  display: flex;
  background: #D2F2EE; /* Changed from #E3F8F6 */
  border-radius: 999px;
  /* Removed padding: 4px; */
  transition: background .3s ease;
  position: relative; /* Added for absolute positioning of the pill */
  overflow: hidden; /* Added to contain the absolutely positioned pill */
}

.header-theme-slider__pill {
  position: absolute;
  top: 0;
  bottom: 0;
  left: 0; /* Initial position for 'home' theme */
  background: #00BFA6;
  border-radius: 999px;
  box-shadow: 0 4px 8px rgba(0,0,0,0.12);
  transition: transform 0.25s ease;
  z-index: 1;
  width: 50%; /* Covers half of the track */
}
.header-theme-slider__track button[data-theme-option] {
  flex: 1;
  padding: 8px 12px;
  border: 0;
  /* Removed border-radius: 999px; */
  background: transparent;
  color: #7A8A8F; /* Changed from #333 */
  /* Removed opacity: 0.6; */
  font-weight: 600; /* Added font-weight */
  cursor: pointer;
  transition: color .25s ease; /* Changed transition to only color */
  position: relative; /* Added for z-index */
  z-index: 2; /* Added to appear above the pill */
}
.header-theme-slider__track button[data-theme-option].active {
  /* Removed background: #00BFA6; */
  color: #fff;
  /* Removed opacity: 1; */
  /* Removed box-shadow: 0 2px 4px rgba(0,0,0,0.1); */
}

/* JavaScript-controlled classes for pill position */
.header-theme-slider[data-theme-current="home"] .header-theme-slider__pill {
  transform: translateX(0%);
}

.header-theme-slider[data-theme-current="neon"] .header-theme-slider__pill {
  transform: translateX(100%);
}

#userMenu .header-theme-toggle {
  margin: 0 0 14px;
  padding: 14px 14px 12px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f6fffd 0%, #eefbf8 100%);
  border: 1px solid rgba(0, 191, 165, 0.12);
}
#userMenu .header-theme-toggle__label {
  font-size: 0.92rem;
  margin: 0 0 10px;
  color: #163c37;
  font-weight: 800;
}
#userMenu .header-theme-slider {
  width: 100%;
}
#userMenu .header-theme-slider__track {
  padding: 4px;
  background: linear-gradient(135deg, #dff7f2 0%, #d3f0ed 100%);
  border-radius: 999px;
  box-shadow: inset 0 1px 2px rgba(15, 23, 42, 0.06);
}
#userMenu .header-theme-slider__pill {
  top: 4px;
  bottom: 4px;
  left: 4px;
  width: calc(50% - 4px);
  background: linear-gradient(135deg, #10c7ac 0%, #0db2a1 100%);
  box-shadow: 0 8px 18px rgba(0,191,165,.22);
}
#userMenu .header-theme-slider__track button[data-theme-option] {
  padding: 12px 12px;
  border-radius: 999px;
  color: #628189;
  font-size: 0.9rem;
}
#userMenu .header-theme-slider__track button[data-theme-option].active {
  color: #fff;
}

/* Neon background for pages */
body.theme-neon { 
  background: radial-gradient(ellipse at 10% 10%, rgba(126,240,255,0.06) 0%, transparent 12%),
              radial-gradient(ellipse at 90% 90%, rgba(155,122,255,0.03) 0%, transparent 18%),
              linear-gradient(180deg, #04121a 0%, #071722 40%, #0a1322 100%);
  color: var(--ta-text);
  -webkit-font-smoothing: antialiased; -moz-osx-font-smoothing: grayscale;
}

/* Slight card/bg overrides in neon mode for readability */
body.theme-neon .card, body.theme-neon .box, body.theme-neon .um-head {
  background: linear-gradient(180deg, rgba(255,255,255,0.02), rgba(126,240,255,0.02));
  border: 1px solid rgba(126,240,255,0.06);
}

/* Make header contrast well on neon */
body.theme-neon .main-header { background: rgba(8,19,32,0.7); backdrop-filter: blur(6px); }

/* Emergency: force header visible and on top to recover from styling issues */
.main-header {
  display: flex !important;
  position: sticky !important;
  top: 0 !important;
  left: 0 !important;
  right: 0 !important;
  z-index: 20000 !important;
  background: var(--ta-menu-bg, #ffffff) !important;
  border-bottom: 1px solid rgba(0,0,0,0.06) !important;
}
.main-header .container { padding-top: 10px !important; padding-bottom: 10px !important; }
.logo, .site-name { z-index: 20001 !important; }

/* ===== Nút Đăng xuất trong menu người dùng ===== */
#userMenu {
  /* đảm bảo bo góc + đổ bóng của menu giữ được form khi có nút ở đáy */
  overflow: hidden;
  border-radius: 12px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.12);
  border: 1px solid rgba(0,0,0,0.06);
}

/* dòng kẻ phía trên nút (nếu bạn chưa có) */
#btnLogout {
  position: relative;
}
#btnLogout::before {
  content: "";
  position: absolute;
  left: 8px; right: 8px; top: -8px;
  height: 1px;
  background: rgba(0,0,0,0.06);
}

/* style chính cho nút */
#btnLogout {
  display: block;
  width: calc(100% - 16px);
  margin: 12px auto 12px;
  padding: 10px 12px;
  background: #00bfa5;             /* màu chủ đạo TA-Edu */
  color: #fff;
  border: 0;
  border-radius: 10px;
  font-family: 'Baloo 2', system-ui, sans-serif;
  font-weight: 700;
  text-align: center;
  cursor: pointer;
}

#btnLogout:hover {
  transform: translateY(-1px);

  opacity: .95;
}

#btnLogout:active {
  transform: translateY(0);
}

#btnLogout:focus-visible {
  outline: 2px solid #00bfa5;
  outline-offset: 2px;
}
/* ===== AUTH STATE GUARD (khóa hiển thị đúng trạng thái) ===== */
#userInfo[hidden],
.btn-login[hidden] {
  display: none !important;
}

/* Khi đã đăng nhập: ẩn nút login, hiện khối avatar */
body.is-auth .btn-login { display: none !important; }
body.is-auth #userInfo  { display: inline-flex !important; }

/* Khi chưa đăng nhập: luôn ẩn dropdown menu người dùng */
body:not(.is-auth) #userMenu { display: none !important; }

/* Trợ năng: focus rõ cho nút đăng nhập & avatar */
.btn-login:focus-visible,
#userPhoto:focus-visible {
  outline: 3px solid #00bfa5;
  outline-offset: 2px;
  border-radius: 12px;
}
/* ===== User Menu - Layout mới gọn, hành động trước ===== */
#userMenu {
  width: 286px;
  padding: 14px;
  background: linear-gradient(180deg, #ffffff 0%, #f7fffd 100%);
}

#userMenu .um-head{
  display:flex;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap: 12px;
  text-align: center;
  background:
    linear-gradient(180deg, rgba(255,255,255,.36), rgba(255,255,255,0) 52%),
    linear-gradient(135deg, #dff9f3 0%, #c9f3ea 52%, #bcebe3 100%);
  border: 1px solid rgba(0, 191, 165, 0.14);
  border-radius:22px;
  padding:16px 16px 14px;
  margin-bottom:14px;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.72),
    0 14px 28px rgba(0, 191, 165, 0.08);
}

#userMenu .um-avatar{
  width: 56px;
  height: 56px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(0, 191, 165, 0.45);
  box-shadow: 0 10px 18px rgba(0, 191, 165, 0.16);
  background: #e6fffb;
}
#userMenu .um-name#menuName{
  margin: 0;
  padding: 0;
  background: none;
  border: none;
  font-family: 'Baloo 2', system-ui, sans-serif;
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: .01em;
  color: #103f39;
  width: 100%;
  text-align: center;
  align-self: center;
  line-height: 1.2;
  text-wrap: balance;
  overflow-wrap: anywhere;
  position: relative;
}
#userMenu .um-name#menuName::after{
  content: "";
  display: block;
  width: 42px;
  height: 1px;
  margin: 8px auto 0;
  border-radius: 999px;
  background: linear-gradient(90deg, rgba(16,199,172,.04), rgba(16,199,172,.34), rgba(16,199,172,.04));
}
#userMenu .um-balance{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  background: rgba(255,255,255,.58);
  color:#00a994;
  font-weight:800;
  border-radius:12px;
  padding:8px 10px;
  font-size:12px;
  border: 1px solid rgba(0, 191, 165, 0.1);
  backdrop-filter: blur(4px);
  box-shadow: inset 0 1px 0 rgba(255,255,255,.62);
  width: 100%;
}

#userMenu .trust-pill__icon i{
  font-size: 12px;
}
#userMenu .um-balance i{font-size:14px;}
#userMenu .trust-pill__icon{
  width: 28px;
  height: 28px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, rgba(0,191,165,.14), rgba(0,191,165,.22));
  color: #0d8f7e;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.55);
}
#userMenu .trust-pill__content{
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 4px;
  text-align: right;
}

#userMenu .um-list{display:grid;gap:8px;margin:0 0 14px;}
#userMenu .um-item{
  display:flex;align-items:center;gap:10px;
  padding:12px 13px;border-radius:14px;
  background:#f6fffd;color:#173531;text-decoration:none;
  font-family:'Baloo 2',sans-serif;font-weight:700;transition:.2s;
  border: 1px solid rgba(0, 191, 165, 0.08);
}
#userMenu .um-item:hover{
  transform: translateY(-1px);
  background: #ecfffb;
  border-color: rgba(0, 191, 165, 0.18);
}
#userMenu .um-item.is-primary{background: linear-gradient(135deg, #e8fffb 0%, #d8fbf5 100%);font-weight:800;}
#userMenu .um-item i{color:#00bfa5;}

#userMenu .um-logout{
  width:100%;border:0;padding:13px 14px;border-radius:16px;
  background: linear-gradient(135deg, #10c7ac 0%, #00bfa5 100%);
  color:#fff;font-weight:800;cursor:pointer;transition:.15s;
  box-shadow: 0 14px 24px rgba(0,191,165,.22);
}
#userMenu .um-logout:hover{
  transform: translateY(-1px);
  box-shadow: 0 18px 28px rgba(0,191,165,.28);
}


/* Show simplified trust text: "Điểm uy tín: <value>" */
#userMenu .trust-pill__label,
#userMenu .trust-pill__hint { display: none; }
#menuTrust{
  display: inline-flex;
  align-items: center;
  justify-content: flex-end;
  gap: 2px;
  font-size: 0.92rem;
  font-weight: 800;
  color:#0d6e60;
  white-space: nowrap;
}
#menuTrust::before {
  content: "Điểm uy tín";
  font-size: .76rem;
  font-weight:700;
  letter-spacing: .01em;
  color:#117c66;
  margin-right: 2px;
}

/* Khoá hiển thị đúng trạng thái (giữ nguyên logic hiện có) */
#userInfo[hidden], .btn-login[hidden]{display:none!important;}
body.is-auth .btn-login{display:none!important;}
body.is-auth #userInfo{display:inline-flex!important;}
body:not(.is-auth) #userMenu{display:none!important;} /* chưa login không mở menu */
/* Avatar highlight khi đang ở Dashboard */
.header-avatar.is-current {

  border-radius: 999px;
  transition: box-shadow .2s ease;
}
@media (prefers-reduced-motion: no-preference){
  .header-avatar.is-current { animation: taeduRing 1s ease-in-out 2; }
  @keyframes taeduRing {
    0% { box-shadow: 0 0 0 0 rgba(0,191,165,.20), 0 0 0 3px #00bfa5; }
    70%{ box-shadow: 0 0 0 8px rgba(0,191,165,.05), 0 0 0 3px #00bfa5; }
    100%{ box-shadow: 0 0 0 0 rgba(0,191,165,.15), 0 0 0 3px #00bfa5; }
  }
}

/* === TA-Edu: vòng sáng avatar khi ở Dashboard (chuẩn v2.1) === */
.header-avatar.is-current { position: relative; }
.header-avatar.is-current::after {
  content: "";
  position: absolute;
  inset: -3px;
  border-radius: 50%;
  box-shadow: 0 0 0 2px #00bfa5, 0 0 8px rgba(0,191,165,.5);
  pointer-events: none;
}

/* Mobile / small-screen: make the main nav full-width and avoid double scrollbars
   - position fixed so it covers viewport
   - body.nav-open hides background scrolling to avoid two vertical scrollbars
   - ensure inner containers don't exceed viewport width (no horizontal scroll)
*/
@media (max-width: 992px) {
  body.nav-open {
    overflow: hidden; /* prevent page from scrolling while nav is open */
    -webkit-overflow-scrolling: touch;
  }

  .main-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 100vh;
    width: 100%;
    max-width: 100%;
    overflow-y: auto; /* allow menu to scroll if content exceeds viewport */
    overflow-x: hidden;
    z-index: 10001; /* above header but below user menu which uses 10002 */
    -webkit-overflow-scrolling: touch;
    background: var(--ta-nav-bg, #ffffff);
  }

  .main-nav .nav-inner,
  .main-nav .nav-list,
  .main-nav ul {
    width: 100%;
    max-width: 100%;
    box-sizing: border-box;
    overflow-x: hidden;
  }

  /* Make sure the user menu (dropdown) can be shown inside the fixed nav
     when the nav is open without creating extra scrolling layers */
body.nav-open #userMenu {
    position: static;
    display: flex !important;
    width: 100%;
    box-shadow: none;
    border-radius: 0;
    background: var(--ta-nav-bg, #ffffff);
  }
}

.auth-modal[hidden] { display: none !important; }
.auth-modal {
  position: fixed;
  inset: 0;
  z-index: 30000;
  display: grid;
  place-items: center;
  padding: 20px;
}
.auth-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(15, 23, 42, 0.45);
  backdrop-filter: blur(4px);
}
.auth-modal__dialog {
  position: relative;
  width: min(420px, calc(100vw - 24px));
  padding: 22px;
  border-radius: 22px;
  background: #ffffff;
  box-shadow: 0 30px 70px rgba(15, 23, 42, 0.2);
  border: 1px solid rgba(0,0,0,0.06);
  z-index: 1;
}
.auth-modal__close {
  position: absolute;
  top: 12px;
  right: 12px;
  width: 36px;
  height: 36px;
  border: 0;
  border-radius: 999px;
  background: #f4f7f8;
  cursor: pointer;
  color: #334155;
}
.auth-modal__head h2 {
  margin: 0 0 6px;
  color: #0f172a;
}
.auth-modal__head p {
  margin: 0;
  color: #64748b;
  font-size: 0.95rem;
  line-height: 1.5;
}
.auth-modal__tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin: 18px 0 14px;
}
.auth-tab {
  border: 1px solid rgba(0,0,0,0.08);
  background: #f8fafc;
  color: #334155;
  border-radius: 12px;
  padding: 10px 12px;
  font-weight: 700;
  cursor: pointer;
}
.auth-tab.is-active {
  background: linear-gradient(135deg, #37e5c0 0%, #53b3ff 100%);
  color: #fff;
  border-color: transparent;
}
.auth-form {
  display: grid;
  gap: 12px;
}
.auth-field {
  display: grid;
  gap: 6px;
  color: #0f172a;
  font-weight: 700;
}
.auth-field[hidden],
.auth-password-strength[hidden] {
  display: none !important;
}
.auth-field input {
  width: 100%;
  border: 1px solid rgba(0,0,0,0.12);
  border-radius: 12px;
  padding: 11px 13px;
  font: inherit;
  color: #0f172a;
  background: #fff;
}
.auth-password-wrap {
  position: relative;
  display: flex;
  align-items: center;
}
.auth-password-wrap input {
  padding-right: 46px;
}
.auth-password-toggle {
  position: absolute;
  right: 8px;
  top: 50%;
  transform: translateY(-50%);
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 10px;
  background: transparent;
  color: #64748b;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
}
.auth-password-toggle:hover {
  background: rgba(15, 23, 42, 0.06);
  color: #0f172a;
}
.auth-password-toggle:focus-visible {
  outline: 2px solid rgba(0,191,165,.35);
  outline-offset: 2px;
}
.auth-password-strength {
  display: grid;
  gap: 6px;
  margin-top: -2px;
}
.auth-password-strength__bar {
  width: 100%;
  height: 8px;
  border-radius: 999px;
  background: #e2e8f0;
  overflow: hidden;
}
.auth-password-strength__bar span {
  display: block;
  height: 100%;
  width: 0%;
  border-radius: inherit;
  background: #f97316;
  transition: width 0.2s ease, background 0.2s ease;
}
.auth-password-strength__text {
  margin: 0;
  font-size: 0.86rem;
  color: #64748b;
  font-weight: 700;
}
.auth-password-strength[data-strength="weak"] .auth-password-strength__bar span {
  background: #ef4444;
}
.auth-password-strength[data-strength="medium"] .auth-password-strength__bar span {
  background: #f59e0b;
}
.auth-password-strength[data-strength="strong"] .auth-password-strength__bar span {
  background: #10b981;
}
.auth-field input:focus {
  outline: none;
  border-color: #00bfa5;
  box-shadow: 0 0 0 3px rgba(0,191,165,.14);
}
.auth-modal__hint {
  margin: 0;
  color: #64748b;
  font-size: 0.9rem;
}
.auth-modal__error {
  margin: 0;
  padding: 10px 12px;
  border-radius: 12px;
  background: #fff1f2;
  color: #be123c;
  font-size: 0.9rem;
  font-weight: 700;
}
.auth-submit,
.auth-google {
  width: 100%;
  min-height: 46px;
  border-radius: 14px;
  border: 0;
  font: inherit;
  font-weight: 800;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
}
.auth-submit {
  background: linear-gradient(135deg, #37e5c0 0%, #53b3ff 100%);
  color: #fff;
}
.auth-google {
  background: #ffffff;
  color: #0f172a;
  border: 1px solid rgba(0,0,0,0.1);
}
.auth-divider {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 14px 0;
  color: #94a3b8;
  font-weight: 700;
  font-size: 0.85rem;
}
.auth-divider::before,
.auth-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: rgba(148,163,184,.35);
}

@media (max-width: 640px) {
  .auth-modal {
    padding: 12px;
  }
  .auth-modal__dialog {
    width: min(100%, calc(100vw - 12px));
    padding: 18px 16px;
    border-radius: 18px;
  }
}