* { box-sizing: border-box; margin: 0; padding: 0; font-family: "Segoe UI", Arial, sans-serif; }
body { background: #0a0a0a; color: #e8e8e8; min-height: 100vh; overflow-x: hidden; }

@keyframes fadeInUp { from { opacity: 0; transform: translateY(16px); } to { opacity: 1; transform: translateY(0); } }
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.5; } }

/* ---- Màn hình login ---- */
.man-hinh { min-height: 100vh; }
#man-hinh-login { display: flex; align-items: center; justify-content: center; padding: 20px; }
.the-login {
  background: #141414; padding: 44px; border-radius: 12px; text-align: center;
  width: 100%; max-width: 380px; border: 1px solid #262626;
  animation: fadeInUp 0.5s ease-out;
}
.login-logo { font-size: 40px; margin-bottom: 10px; }
.the-login h1 { margin-bottom: 8px; color: #fff; letter-spacing: 3px; font-size: 20px; font-weight: 800; }
.the-login p { color: #888; font-size: 13px; margin-bottom: 24px; line-height: 1.5; }
.the-login input {
  width: 100%; padding: 13px; border-radius: 8px; border: 1px solid #333;
  background: #0a0a0a; color: #fff; margin-bottom: 14px; font-size: 14px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.the-login input:focus { outline: none; border-color: #fff; box-shadow: 0 0 0 3px rgba(255,255,255,0.08); }
.the-login button {
  width: 100%; padding: 13px; border: 1px solid #fff; border-radius: 8px;
  background: #fff; color: #0a0a0a; font-weight: 700; letter-spacing: 1px;
  cursor: pointer; font-size: 13px; transition: all 0.15s;
}
.the-login button:hover { background: #0a0a0a; color: #fff; transform: translateY(-2px); box-shadow: 0 4px 14px rgba(255,255,255,0.12); }
.the-login button:active { transform: translateY(0) scale(0.97); }
.thong-bao-loi { color: #ff6b6b; font-size: 13px; margin-top: 12px; min-height: 16px; }
.login-hint { color: #888; font-size: 12px; margin-top: 16px; line-height: 1.6; }
.login-hint a { color: #7fb8ff; text-decoration: none; }
.login-hint a:hover { text-decoration: underline; }

/* ---- Popup (Modal) dùng chung ---- */
.modal-overlay {
  position: fixed; inset: 0; background: rgba(0,0,0,0.75); z-index: 100;
  display: flex; align-items: center; justify-content: center; padding: 20px;
  animation: fadeIn 0.2s ease-out;
}
.modal-box {
  background: #141414; border: 1px solid #2a2a2a; border-radius: 14px;
  padding: 36px 32px; max-width: 440px; width: 100%; text-align: center;
  animation: fadeInUp 0.3s ease-out;
}
.modal-icon { font-size: 40px; margin-bottom: 14px; }
.modal-title { color: #fff; font-size: 18px; font-weight: 800; letter-spacing: 1px; margin-bottom: 18px; }
.modal-noidung { color: #ccc; font-size: 13.5px; line-height: 1.7; margin-bottom: 20px; white-space: pre-line; text-align: left; }
.modal-box input {
  width: 100%; padding: 12px; border-radius: 8px; border: 1px solid #333;
  background: #0a0a0a; color: #fff; margin-bottom: 14px; font-size: 14px;
}
.modal-box input:focus { outline: none; border-color: #fff; box-shadow: 0 0 0 3px rgba(255,255,255,0.08); }
.modal-button {
  width: 100%; padding: 13px; border: 1px solid #fff; border-radius: 8px;
  background: #fff; color: #0a0a0a; font-weight: 700; letter-spacing: 1px;
  cursor: pointer; font-size: 13px; transition: all 0.15s;
}
.modal-button:hover { background: #0a0a0a; color: #fff; }
.modal-button:active { transform: scale(0.97); }

/* ---- Layout chính ---- */
.app-layout { min-height: 100vh; animation: fadeIn 0.4s ease-out; }

/* ---- Menu ngang trên đầu ---- */
.topnav {
  display: flex; align-items: center; gap: 16px; padding: 12px 20px;
  background: #111111; border-bottom: 1px solid #262626;
  position: sticky; top: 0; z-index: 20; flex-wrap: nowrap;
}
.topnav-brand { color: #fff; font-weight: 800; letter-spacing: 1px; font-size: 15px; white-space: nowrap; }

.nut-hamburger {
  display: none; width: 34px; height: 34px; background: #1a1a1a; border: 1px solid #2a2a2a;
  border-radius: 6px; flex-direction: column; align-items: center; justify-content: center; gap: 4px;
  cursor: pointer; flex-shrink: 0;
}
.nut-hamburger span { width: 16px; height: 2px; background: #fff; border-radius: 2px; }

.topnav-menu { display: flex; align-items: center; gap: 4px; flex: 1; flex-wrap: wrap; }
.tab-btn {
  display: inline-flex; align-items: center; gap: 6px; background: transparent; border: none;
  color: #aaa; padding: 8px 12px; border-radius: 6px; cursor: pointer; font-size: 12.5px;
  white-space: nowrap; transition: all 0.15s;
}
.tab-btn:hover { background: #1c1c1c; color: #fff; }
.tab-btn.active { background: #fff; color: #0a0a0a; font-weight: 700; }

.topnav-discord {
  color: #7fb8ff; text-decoration: none; font-size: 12.5px; padding: 8px 12px;
  border-radius: 6px; border: 1px solid #2a3a4a; transition: all 0.15s; white-space: nowrap;
}
.topnav-discord:hover { background: #1a2530; color: #a8d0ff; }

.topnav-user { display: flex; align-items: center; gap: 8px; flex-shrink: 0; }
.badge-xu, .badge-streak {
  background: #1a1a1a; border: 1px solid #262626; padding: 6px 10px;
  border-radius: 6px; font-size: 12px; font-weight: 600; color: #fff; white-space: nowrap;
}
.avatar {
  width: 30px; height: 30px; border-radius: 50%; background: #fff; color: #0a0a0a;
  display: flex; align-items: center; justify-content: center; font-size: 13px;
  font-weight: 800; flex-shrink: 0;
}
.topnav-username { font-size: 12.5px; color: #ccc; max-width: 100px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.topnav-logout {
  background: transparent; border: 1px solid #2a2a2a; color: #999; width: 30px; height: 30px;
  border-radius: 6px; cursor: pointer; font-size: 14px; transition: all 0.15s; flex-shrink: 0;
}
.topnav-logout:hover { border-color: #fff; color: #fff; }

/* ---- Nội dung chính ---- */
.content { padding: 24px; }
.section-title { font-size: 16px; font-weight: 700; color: #fff; margin-bottom: 16px; letter-spacing: 0.5px; }
.tab-content { display: none; }
.tab-content.active { display: block; animation: fadeInUp 0.3s ease-out; }

/* ---- Cửa hàng ---- */
.grid-shop { display: grid; grid-template-columns: repeat(auto-fill, minmax(220px, 1fr)); gap: 12px; }
.the-san-pham {
  background: #141414; border: 1px solid #262626; border-radius: 10px; padding: 16px;
  transition: all 0.2s; display: flex; flex-direction: column;
}
.the-san-pham:hover { transform: translateY(-3px); border-color: #444; box-shadow: 0 6px 16px rgba(0,0,0,0.4); }
.the-san-pham h3 { color: #fff; margin-bottom: 8px; font-size: 14px; }
.the-san-pham .gia { color: #fff; font-weight: 700; margin-bottom: 6px; font-size: 15px; }
.the-san-pham .mo-ta { color: #888; font-size: 12px; margin-bottom: 8px; line-height: 1.5; flex: 1; }
.the-san-pham .ton-kho { font-size: 11px; color: #7fd97f; margin-bottom: 10px; background: rgba(127,217,127,0.1); padding: 3px 8px; border-radius: 4px; display: inline-block; width: fit-content; }
.the-san-pham input {
  width: 100%; padding: 8px; margin-bottom: 8px; border-radius: 6px;
  border: 1px solid #333; background: #0a0a0a; color: #fff; font-size: 13px;
}
.the-san-pham input:focus { outline: none; border-color: #fff; }
.the-san-pham button {
  width: 100%; padding: 9px; border: 1px solid #fff; border-radius: 6px;
  background: #fff; color: #0a0a0a; font-weight: 700; cursor: pointer; font-size: 12px;
  letter-spacing: 0.3px; transition: all 0.15s;
}
.the-san-pham button:hover:not(:disabled) { background: #0a0a0a; color: #fff; }
.the-san-pham button:active:not(:disabled) { transform: scale(0.97); }
.the-san-pham button:disabled { opacity: 0.5; cursor: not-allowed; animation: pulse 1.2s infinite; }

/* ---- Form dùng chung ---- */
.the-form {
  background: #141414; border: 1px solid #262626; padding: 26px;
  border-radius: 10px; max-width: 400px; animation: fadeInUp 0.3s ease-out;
}
.the-form-center { text-align: center; }
.dnhn-icon { font-size: 32px; margin-bottom: 8px; }
.the-form h3 { margin-bottom: 10px; font-size: 15px; color: #fff; }
.the-form p { margin-bottom: 16px; color: #999; font-size: 13px; }
.the-form input, .the-form select {
  width: 100%; padding: 11px; border-radius: 6px; border: 1px solid #333;
  background: #0a0a0a; color: #fff; margin-bottom: 10px; font-size: 13px;
  font-family: inherit;
}
.the-form input:focus, .the-form select:focus { outline: none; border-color: #fff; box-shadow: 0 0 0 3px rgba(255,255,255,0.08); }
.the-form select { cursor: pointer; }
.the-form button {
  width: 100%; padding: 11px; border: 1px solid #fff; border-radius: 6px;
  background: #fff; color: #0a0a0a; font-weight: 700; cursor: pointer;
  font-size: 12px; letter-spacing: 0.5px; transition: all 0.15s;
}
.the-form button:hover { background: #0a0a0a; color: #fff; }
.the-form button:active { transform: scale(0.97); }
.thong-bao { margin-top: 12px; font-size: 13px; min-height: 18px; }

/* ---- Danh sách (lịch sử, BXH, thông tin cá nhân) ---- */
.grid-list { display: flex; flex-direction: column; gap: 8px; max-width: 600px; }
.dong-list {
  background: #141414; border: 1px solid #262626; padding: 12px 16px;
  border-radius: 8px; display: flex; justify-content: space-between; align-items: center;
  transition: all 0.15s;
}
.dong-list:hover { border-color: #444; }
.dong-list .trai { font-size: 13px; color: #ddd; }
.dong-list .phai { font-weight: 700; color: #fff; font-size: 13px; }
.dong-list .hang { color: #fff; font-weight: 700; margin-right: 8px; }

/* ---- Responsive Mobile ---- */
@media (max-width: 900px) {
  .nut-hamburger { display: flex; }
  .topnav { flex-wrap: wrap; }
  .topnav-menu {
    display: none; flex-direction: column; align-items: stretch; width: 100%;
    order: 3; padding-top: 10px; border-top: 1px solid #262626; margin-top: 10px;
  }
  .topnav-menu.mo { display: flex; }
  .tab-btn { width: 100%; }
  .topnav-discord { width: 100%; text-align: center; }
  .content { padding: 16px; }
  .grid-shop { grid-template-columns: repeat(auto-fill, minmax(150px, 1fr)); gap: 10px; }
  .the-form { max-width: 100%; }
  .topnav-username { max-width: 60px; }
  .modal-box { padding: 28px 22px; }
  /* ============ HIỆU ỨNG BỔ SUNG (dán vào CUỐI style.css) ============ */

@keyframes shimmer {
  0% { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes glowPulse {
  0%, 100% { box-shadow: 0 0 0 0 rgba(255,255,255,0.15); }
  50% { box-shadow: 0 0 0 6px rgba(255,255,255,0); }
}
@keyframes bounceIn {
  0% { transform: scale(0.9); opacity: 0; }
  60% { transform: scale(1.03); opacity: 1; }
  100% { transform: scale(1); }
}
@keyframes floatUp {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-3px); }
}

.badge-xu, .badge-streak {
  background: linear-gradient(90deg, #1a1a1a 0%, #232323 50%, #1a1a1a 100%);
  background-size: 200% 100%;
  animation: shimmer 4s linear infinite;
}

.avatar { animation: glowPulse 2.5s ease-in-out infinite; }

.topnav-brand { transition: transform 0.2s; cursor: default; }
.topnav-brand:hover { transform: scale(1.04); }

.grid-shop .the-san-pham {
  animation: bounceIn 0.35s ease-out backwards;
}
.grid-shop .the-san-pham:nth-child(1) { animation-delay: 0.03s; }
.grid-shop .the-san-pham:nth-child(2) { animation-delay: 0.06s; }
.grid-shop .the-san-pham:nth-child(3) { animation-delay: 0.09s; }
.grid-shop .the-san-pham:nth-child(4) { animation-delay: 0.12s; }
.grid-shop .the-san-pham:nth-child(5) { animation-delay: 0.15s; }
.grid-shop .the-san-pham:nth-child(6) { animation-delay: 0.18s; }
.grid-shop .the-san-pham:nth-child(7) { animation-delay: 0.21s; }
.grid-shop .the-san-pham:nth-child(8) { animation-delay: 0.24s; }

.grid-list .dong-list {
  animation: bounceIn 0.3s ease-out backwards;
}
.grid-list .dong-list:nth-child(1) { animation-delay: 0.03s; }
.grid-list .dong-list:nth-child(2) { animation-delay: 0.06s; }
.grid-list .dong-list:nth-child(3) { animation-delay: 0.09s; }
.grid-list .dong-list:nth-child(4) { animation-delay: 0.12s; }
.grid-list .dong-list:nth-child(5) { animation-delay: 0.15s; }
.dong-list .hang { display: inline-block; animation: floatUp 2s ease-in-out infinite; }

.the-form button, .the-san-pham button, .modal-button, .the-login button {
  position: relative; overflow: hidden;
}
.the-form button::after, .the-san-pham button::after,
.modal-button::after, .the-login button::after {
  content: ""; position: absolute; top: 50%; left: 50%; width: 0; height: 0;
  background: rgba(0,0,0,0.15); border-radius: 50%; transform: translate(-50%, -50%);
  transition: width 0.4s ease, height 0.4s ease;
}
.the-form button:active::after, .the-san-pham button:active::after,
.modal-button:active::after, .the-login button:active::after {
  width: 220px; height: 220px;
}

.tab-btn:hover { transform: translateY(-1px); }

.section-title { animation: bounceIn 0.3s ease-out; }
  /* ============ PHÁT SÁNG DÒNG CỦA MÌNH TRONG BXH ============ */
@keyframes bxhGlow {
  0%, 100% { box-shadow: 0 0 8px 0 rgba(255,255,255,0.25); }
  50% { box-shadow: 0 0 16px 2px rgba(255,255,255,0.5); }
}
.dong-list.dong-cua-toi {
  border-color: #fff !important;
  background: #1c1c1c;
  animation: bxhGlow 1.8s ease-in-out infinite;
}
.nhan-ban {
  color: #7fd97f;
  font-size: 11px;
  font-weight: 700;
}
/* ============ LÀM ĐẸP MÀN HÌNH ĐĂNG NHẬP (kính mờ, trong suốt) ============ */
#man-hinh-login {
  background: radial-gradient(circle at 30% 20%, #1a1a1a 0%, #0a0a0a 55%, #050505 100%) !important;
}

.the-login {
  background: rgba(20, 20, 20, 0.55) !important;
  backdrop-filter: blur(18px) !important;
  -webkit-backdrop-filter: blur(18px) !important;
  border: 1px solid rgba(255, 255, 255, 0.1) !important;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05) !important;
}

.login-logo {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: linear-gradient(145deg, #2a2a2a, #101010);
  border: 1px solid rgba(255, 255, 255, 0.12);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4), inset 0 1px 2px rgba(255, 255, 255, 0.08);
  margin: 0 auto 18px;
  font-size: 26px;
}

.the-login h1 {
  background: linear-gradient(90deg, #ffffff, #b0b0b0);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.the-login input {
  background: rgba(10, 10, 10, 0.6) !important;
  border: 1px solid rgba(255, 255, 255, 0.12) !important;
  backdrop-filter: blur(6px);
}
.the-login input:focus {
  border-color: rgba(255, 255, 255, 0.5) !important;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.06) !important;
}

.the-login button {
  background: rgba(255, 255, 255, 0.92) !important;
  box-shadow: 0 4px 14px rgba(255, 255, 255, 0.08);
}
.the-login button:hover {
  background: rgba(0, 0, 0, 0.3) !important;
  border-color: rgba(255, 255, 255, 0.5) !important;
}

.login-hint {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding-top: 14px;
  margin-top: 16px;
}