:root {
  --main: #52c41a;
  --main-dark: #237804;
  --accent: #ffeb3b;
  --light: #f6ffed;
  --text: #1a1a1a;
  --gray: #fafafa;
}



* { margin:0; padding:0; box-sizing:border-box; }
body { font-family:'Inter',system-ui,sans-serif; color:var(--text); background:#fff; line-height:1.7; }
.container { max-width:1180px; margin:0 auto; padding:0 20px; }

/* Header */
header { position:fixed; top:0; left:0; right:0; background:var(--main); color:#fff; z-index:1000; box-shadow:0 4px 20px rgba(82,196,26,.3); }
.header-inner { height:76px; display:flex; justify-content:space-between; align-items:center; }
.logo { font-size:2.2rem; font-weight:900; }
.btn-top { background:var(--accent); color:#000; padding:12px 34px; border-radius:50px; font-weight:bold; text-decoration:none; transition:.3s; }
.btn-top:hover { transform:scale(1.07); }

.header-right {
  display: flex;
  align-items: center;
  gap: 20px;               /* khoảng cách giữa nút mặt trăng và nút ủng hộ */
}

/* Hero */
.hero { background:linear-gradient(135deg,#95de64,#52c41a); color:#fff; text-align:center; padding:160px 20px 110px; }
.hero h1 { font-size:5.5rem; margin-bottom:20px; animation:float 6s infinite; }
.subtitle { font-size:1.5rem; max-width:900px; margin:0 auto 50px; opacity:.95; }
.stats { display:flex; justify-content:center; gap:90px; flex-wrap:wrap; }
.stat h3 { font-size:4.5rem; color:var(--accent); font-weight:900; }
.stat p { font-size:1.2rem; }

/* Common */
.section-title { font-size:3rem; text-align:center; color:var(--main); margin-bottom:60px; font-weight:900; }
.text-center { text-align:center; }

/* About */
.about { padding:120px 0; background:var(--light); }
.about-grid { display:grid; grid-template-columns:1fr 1fr; gap:60px; align-items:center; }
.about-img { width:100%; max-width:420px; border-radius:28px; box-shadow:0 20px 50px rgba(0,0,0,.15); }
.about-text p { font-size:1.2rem; margin-bottom:20px; }
/* Packages */
.packages-section { padding:120px 0; background:#fff; }
.packages { display:grid; grid-template-columns:repeat(auto-fit,minmax(340px,1fr)); gap:40px; }
.package { background:#fff; border-radius:28px; overflow:hidden; box-shadow:0 15px 40px rgba(0,0,0,.1); transition:.4s; position:relative; }
.package:hover { transform:translateY(-20px); }
.popular { border: 6px solid #ffeb3b !important;
  position: relative;
  z-index: 1;
  transform: scale(1.04);
  box-shadow: 0 20px 50px rgba(255,235,59,.4); }
.popular::before { content: "PHỔ BIẾN NHẤT";
  position: absolute;
  top: -8px;
  left: 50%;
  transform: translateX(-50%);
  background: #ffeb3b;
  color: #000;
  font-weight: 900;
  font-size: 1rem;
  padding: 10px 32px;
  border-radius: 50px;
  white-space: nowrap;
  box-shadow: 0 4px 15px rgba(255,235,59,.6);
  z-index: 10;}
  /* Nút HOT trong gói Tiêu Chuẩn */
.popular .btn {
  background: #ff4d4f !important;
  color: white !important;
  border: 4px solid #fff !important;
  margin: 30px auto !important;
  font-weight: 900;
  box-shadow: 0 10px 30px rgba(255,77,79,.5);
  animation: pulse 2s infinite;
}

.popular .btn:hover {
  background: #ff3838 !important;
  transform: scale(1.08);
}
/* Hiệu ứng nhấp nháy nhẹ cho nút HOT */
@keyframes pulse {
  0% { box-shadow: 0 10px 30px rgba(255,77,79,.5); }
  50% { box-shadow: 0 10px 50px rgba(255,77,79,.8); }
  100% { box-shadow: 0 10px 30px rgba(255,77,79,.5); }
}
.package-header { background:var(--main); color:#fff; padding:45px 20px; text-align:center; }
.package-header h3 { font-size:2.1rem; }
.price { font-size:3.6rem; font-weight:900; margin:15px 0; }
.price span { font-size:2.2rem; }
.features ul { list-style:none; padding:0 35px; }
.features li { padding:15px 0; display:flex; align-items:center; gap:18px; font-size:1.15rem; border-bottom:1px solid #eee; }
.features i { padding-bottom:20px; }
.btn { width:88%; margin:35px auto 0; padding:20px; background:var(--main); color:#fff; border:none; border-radius:50px; font-size:1.3rem; font-weight:bold; cursor:pointer; transition:.3s; display:block; }
.btn:hover { background:var(--main-dark); }
.btn.hot { background:#ff4d4f; }

/* Transparency */
.transparency { padding:120px 0; background:var(--gray); }
.alert-box { background:#fff3cd; color:#856404; padding:20px; border-radius:16px; margin:30px auto; max-width:800px; text-align:center; font-weight:600; }
.trans-table { background:#fff; border-radius:20px; overflow:hidden; box-shadow:0 10px 30px rgba(0,0,0,.08); max-width:900px; margin:40px auto; }
.trans-row { display:flex; justify-content:space-between; padding:20px 35px; border-bottom:1px solid #eee; font-size:1.15rem; }
.trans-row.total { background:var(--light); font-size:1.8rem; font-weight:bold; }
.note { text-align:center; font-style:italic; color:#666; margin-top:20px; }

/* Testimonials */
.testimonials { padding:120px 0; }
.testimonial-grid { display:grid; grid-template-columns:repeat(auto-fit,minmax(320px,1fr)); gap:35px; }
.testimonial { background:#fff; padding:40px 30px; border-radius:24px; box-shadow:0 10px 30px rgba(0,0,0,.08); font-size:1.15rem; font-style:italic; }

/* FAQ */
.faq { padding:120px 0; background:var(--light); }
.faq-item { background:#fff; border-radius:18px; margin-bottom:20px; overflow:hidden; box-shadow:0 8px 25px rgba(0,0,0,.06); }
.faq-q { padding:25px 35px; background:var(--light); cursor:pointer; font-weight:700; display:flex; justify-content:space-between; align-items:center; font-size:1.2rem; }
.faq-q span { font-size:2rem; color:var(--main); transition:.3s; }
.faq-a { padding:0 35px; max-height:0; overflow:hidden; transition:max-height .5s ease; }
.faq-a.open { padding:30px 35px; max-height:800px; }

/* NT Code */
.nt-code { padding:140px 20px; background:linear-gradient(135deg,var(--main),#a5c89c); text-align:center; color:#fff; }
.code-box { background:#fff; color:var(--main); padding:50px; border-radius:32px; max-width:500px; margin:0 auto; box-shadow:0 20px 60px rgba(0,0,0,.2); }
.code-box p { font-size:1.2rem; margin-bottom:15px; }
#ntCode { font-size:3.5rem; font-weight:900; margin:20px 0; letter-spacing:8px; }

/* Footer nâng cấp */
footer { 
  background:#000; 
  color:#aaa; 
  padding:100px 0 40px; 
}
.footer-grid { 
  display:grid; 
  grid-template-columns:repeat(auto-fit,minmax(260px,1fr)); 
  gap:50px; 
}
.footer-title { 
  color:#fff; 
  font-size:1.5rem; 
  margin-bottom:20px; 
  font-weight:900; 
}

/* Icon mạng xã hội */
.social-icons a {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:50px;
  height:50px;
  background:#333;
  color:#fff;
  font-size:1.6rem;
  border-radius:50%;
  margin-right:15px;
  transition:.4s;
}
.social-icons a:hover {
  transform:translateY(-8px);
  box-shadow:0 10px 25px rgba(0,0,0,.6);
}
.social-icons a:nth-child(1):hover { background:#1877f2; }   /* FB */
.social-icons a:nth-child(2):hover { background:#e4405f; }   /* IG 
.social-icons a:nth-child(3):hover { background:#000; }      /* TikTok */
.social-icons a:nth-child(4):hover { background:#0088ff; }   /* Zalo */

/* Modal */
.modal { display:none; position:fixed; inset:0; background:rgba(0,0,0,.85); backdrop-filter:blur(10px); align-items:center; justify-content:center; z-index:9999; }
.modal-content { background:#fff; padding:50px 40px; border-radius:28px; text-align:center; max-width:440px; animation:zoom .4s; }
#qrcode { margin:30px auto; }
.close { position:absolute; top:15px; right:25px; font-size:3rem; cursor:pointer; color:#aaa; }

/* Animation */
@keyframes float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-30px)} }
@keyframes zoom { from{transform:scale(.7)} to{transform:scale(1)} }

/* Tools section */
.tools-section { padding:100px 0; background:var(--light); }
.tool-box { background:#fff; padding:40px; border-radius:24px; box-shadow:0 10px 30px rgba(0,0,0,.08); margin-bottom:40px; text-align:center; }
.calculator-box input { padding:16px; width:260px; border:2px solid var(--main); border-radius:12px; font-size:1.1rem; margin:15px 0; }
.calculator-box button, .progress-donate { background:var(--main); color:#fff; padding:16px 32px; border:none; border-radius:50px; font-weight:bold; font-size:1.1rem; cursor:pointer; margin-top:15px; }
.result-text { font-size:1.3rem; font-weight:bold; margin-top:20px; min-height:50px; color:#d4380d; }

.progress-wrapper { margin:30px 0; }
.progress-label { display:flex; justify-content:space-between; font-weight:bold; margin-bottom:10px; }
.progress-bar { height:30px; background:#e0e0e0; border-radius:15px; overflow:hidden; position:relative; }
#monthlyProgress { height:100%; width:72.84%; background:linear-gradient(90deg, #9cff6b, #9affc2); transition:width 2s ease; }
.progress-percent { text-align:center; margin-top:15px; font-size:1.8rem; font-weight:900; color:var(--main); }

/* Quiz */
.quiz-modal { max-width:500px; }
.quiz-option { display:block; width:100%; padding:16px; margin:12px 0; background:#f0f0f0; border:none; border-radius:12px; font-size:1.1rem; cursor:pointer; }
.quiz-option:hover { background:var(--main); color:white; }
#quizProgress { text-align:center; margin-top:30px; font-weight:bold; }

/* Con gấu cute siêu dễ thương */
.cute-pet {
  position: relative;
  width: 280px;
  height: 320px;
  margin: 80px auto 40px;   /* ← cái này quan trọng nhất */

  animation: floatPet 6s ease-in-out infinite;
}
.pet-body {
  position: relative;
  width: 220px;
  height: 260px;
  background: #b58863;
  border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
  margin: 0 auto;
}
.pet-head {
  position: absolute;
  top: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 180px;
  height: 160px;
  background: #b58863;
  border-radius: 50%;
}
.ear {
  position: absolute;
  width: 50px;
  height: 50px;
  background: #8b5a3c;
  border-radius: 50%;
  top: -15px;
}
.ear.left { left: 20px; }
.ear.right { right: 20px; }
.face {
  position: absolute;
  top: 50px;
  left: 50%;
  transform: translateX(-50%);
  width: 140px;
  height: 100px;
  background: #f0d8c0;
  border-radius: 50%;
}
.eye {
  position: absolute;
  width: 30px;
  height: 35px;
  background: #000;
  border-radius: 50%;
  top: 25px;
  animation: blink 4s infinite;
}
.eye.left { left: 25px; }
.eye.right { right: 25px; }
.sparkle {
  position: absolute;
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 50%;
  top: 8px;
  left: 8px;
  animation: shine 2s infinite;
}
.nose {
  position: absolute;
  width: 20px;
  height: 15px;
  background: #000;
  border-radius: 50%;
  top: 55px;
  left: 50%;
  transform: translateX(-50%);
}
.mouth {
  position: absolute;
  width: 40px;
  height: 20px;
  border-bottom: 6px solid #000;
  border-radius: 50%;
  top: 70px;
  left: 50%;
  transform: translateX(-50%);
}
.blush {
  position: absolute;
  width: 30px;
  height: 20px;
  background: rgba(255,100,100,.4);
  border-radius: 50%;
  top: 60px;
}
.blush.left { left: 10px; }
.blush.right { right: 10px; }

.hand-sign {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
}
.sign {
  background: #fff;
  padding: 12px 20px;
  border-radius: 20px;
  font-weight: bold;
  font-size: 1.1rem;
  box-shadow: 0 4px 15px rgba(0,0,0,.2);
  white-space: nowrap;
}

.belly {
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 100px;
  background: #f0d8c0;
  border-radius: 50%;
}

/* Bong bóng thoại */
.speech-bubble {
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  background: #fff;
  color: #000;
  padding: 15px 25px;
  border-radius: 50px;
  font-weight: bold;
  box-shadow: 0 5px 20px rgba(0,0,0,.1);
  white-space: nowrap;
  opacity: 0;
  animation: talk 5s infinite;
}
.speech-bubble::after {
  content: '';
  position: absolute;
  bottom: -10px;
  left: 50%;
  transform: translateX(-50%);
  border: 12px solid transparent;
  border-top-color: #fff;
}

/* Animation */
@keyframes floatPet {
  0%,100% { transform: translateY(0); }
  50% { transform: translateY(-20px); }
}
@keyframes blink {
  0%,95%,100% { height:35px; }
  97% { height:5px; }
}
@keyframes shine {
  0%,100% { opacity:0; }
  50% { opacity:1; }
}
@keyframes talk {
  0%,70%,100% { opacity:0; transform: translateX(-50%) translateY(10px); }
  20%,60% { opacity:1; transform: translateX(-50%) translateY(0); }
}

/* Click con gấu thì kêu + bắn tim */
.cute-pet:active {
  animation: bounce 0.6s;
}
.cute-pet:active ~ .speech-bubble,
.cute-pet:hover ~ .speech-bubble {
  content: "Cảm ơn boss nhiềuuuu";
  animation: none;
  opacity: 1;
}
@keyframes bounce {
  0%,100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

/* Rung nhẹ khi trúng gói Ultra VIP */
@keyframes ultraShake {
  0%, 100% { transform: translateX(0); }
  10%, 30%, 50%, 70%, 90% { transform: translateX(-10px); }
  20%, 40%, 60%, 80% { transform: translateX(10px); }
}
.ultra-vip-shake {
  animation: ultraShake 1s ease-in-out;
}

/* Dark mode */
body.dark-mode {
  background: #0d1117;
  color: #c9d1d9;
}

body.dark-mode .hero { 
  background: linear-gradient(135deg, #166534, #1e3f1e); 
}

body.dark-mode header,
body.dark-mode .package,
body.dark-mode .tool-box,
body.dark-mode .trans-table,
body.dark-mode .testimonial,
body.dark-mode .faq-item,
body.dark-mode .code-box { 
  background: #161b22; 
  color: #c9d1d9; 
  border-color: #30363d;
}

body.dark-mode .package:hover,
body.dark-mode .testimonial,
body.dark-mode .faq-item { 
  box-shadow: 0 10px 30px rgba(0,0,0,.6); 
}

body.dark-mode .btn { 
  background: #238636; 
}

body.dark-mode .btn.hot { 
  background: #da3633; 
}

body.dark-mode .progress-bar { 
  background: #30363d; 
}
/* Khi ở dark mode thì đổi thành mặt trời */
body.dark-mode #darkToggle i.fa-moon { display: none; }
body.dark-mode #darkToggle i.fa-sun { display: block; }
#darkToggle i.fa-sun { display: none; }
*/
/* Nút toggle đẹp */
#darkToggle {
  width: 46px;
  height: 46px;
  background: rgba(255,255,255,0.15);
  border: none;
  border-radius: 50%;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  display: grid;
  place-items: center;
  transition: all 0.3s;
  backdrop-filter: blur(10px);
}
#darkToggle:hover { background: rgba(255,255,255,.1); }

Back to Top – rocket cute
#backToTop {
  position: fixed;
  bottom: 30px;
  right: 30px;
  z-index: 999;
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, #ff6b35, #f7931e);
  color: white;
  border: none;
  border-radius: 50%;
  font-size: 1.8rem;
  cursor: pointer;
  box-shadow: 0 8px 25px rgba(255,107,53,.4);
  opacity: 0;
  visibility: hidden;
  transition: all .4s;
  transform: translateY(100px);
}

#backToTop.show {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

#backToTop:hover {
  transform: translateY(-8px) scale(1.1);
  box-shadow: 0 15px 35px rgba(255,107,53,.6);
}

/* Hiệu ứng rocket bay khi click */
/*#backToTop:active {
  animation: fly 1s ease-out;
}
@keyframes fly {
  0%   { transform: translateY(0) rotate(0); }
  50%  { transform: translateY(-300px) rotate(45deg); }
  100% { transform: translateY(0) rotate(0); }
}*/

/* Themes màu hường */
/* Nút HOT vẫn đỏ để nổi bật */
/* .popular .btn.hot { background: #ff1744 !important; } */

/* Header + hero gradient hồng */
/* header { background: linear-gradient(135deg, #45e284, #3ed739); }
.hero { background: linear-gradient(135deg, #5db35a, #327927); } */

/* Nút Ủng hộ ngay + các nút chính */
/* .btn-top,
.btn,
#copyBtn,
.progress-donate,
.quiz-option:hover {
  background: #ff6bc2 !important;
  color: white !important;
} */
/* .btn-top:hover,
.btn:hover {
  background: #e91e63 !important;
  transform:hover {
  transform: scale(1.08);
} */

/* Badge phổ biến nhất */
/* .popular::before {
  background: #fff0f8;
  color: #e91e63;
} */

/* Progress bar */
/* #monthlyProgress {
  background: linear-gradient(90deg, #9cff6b, #9affc2);
} */


/* =========================================
   CSS CHO CÁC TÍNH NĂNG MỚI (TABS, ALBUM, LIÊN HỆ)
========================================= */

/* --- CSS MENU TAB VỀ SẢ --- */
.about-menu {
  list-style-type: none; padding: 0; display: flex; justify-content: center; gap: 40px; 
  border-bottom: 2px dashed #a5c89c; padding-bottom: 12px; margin-bottom: 40px;
}
.about-tab-btn { 
  cursor: pointer; font-size: 1.25rem; font-weight: bold; color: #999; 
  transition: all 0.3s ease; position: relative; 
}
.about-tab-btn:hover { color: var(--main); }
.about-tab-btn.active { color: var(--main); }
.about-tab-btn.active::after { 
  content: ''; position: absolute; bottom: -14px; left: 0; 
  width: 100%; height: 4px; background: var(--main); border-radius: 5px; 
}
.about-tab-content { display: none; animation: fadeIn 0.5s ease-in-out; }
.about-tab-content.active-content { display: block; }

/* --- CSS CUTE GALLERY CHO ALBUM ẢNH --- */
.cute-gallery {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr)); gap: 25px; padding: 10px;
}
.cute-gallery img {
  width: 100%; height: 260px; object-fit: cover; border-radius: 24px;
  box-shadow: 0 10px 25px rgba(82, 196, 26, 0.15); border: 5px solid #fff;
  transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), box-shadow 0.4s ease;
}
.cute-gallery img:hover { 
  transform: translateY(-12px) scale(1.03); 
  box-shadow: 0 15px 35px rgba(82, 196, 26, 0.35); 
}

/* --- CSS CONTACT BOX --- */
.contact-box { 
  text-align: center; padding: 50px 30px; background: var(--light); 
  border-radius: 30px; box-shadow: 0 10px 30px rgba(0,0,0,0.05); 
}
.social-icons-large { 
  display: flex; justify-content: center; gap: 20px; margin-top: 25px; flex-wrap: wrap; 
}
.social-icons-large .social-btn {
  text-decoration: none; padding: 12px 28px; border-radius: 50px; color: white; 
  font-weight: bold; font-size: 1.1rem; display: flex; align-items: center; gap: 10px;
  box-shadow: 0 5px 15px rgba(0,0,0,0.1); transition: 0.3s;
}
.social-icons-large .social-btn.facebook { background: #1877f2; }
.social-icons-large .social-btn.instagram { background: linear-gradient(45deg, #f09433, #e6683c, #dc2743, #cc2366, #bc1888); }
.social-icons-large .social-btn.tiktok { background: #000000; }
.social-icons-large .social-btn.zalo { background: #0088ff; }
.social-icons-large .social-btn:hover { 
  transform: translateY(-6px); box-shadow: 0 10px 25px rgba(0,0,0,0.2); 
}

/* --- CSS TAB CHỌN GÓI NUÔI --- */
.package-tabs { 
  display: flex; justify-content: center; gap: 15px; margin-bottom: 50px; 
}
.pkg-tab-btn {
  padding: 14px 40px; border: 2px solid var(--main); background: transparent; 
  border-radius: 50px; cursor: pointer; font-size: 1.15rem; font-weight: bold; 
  color: var(--main); transition: 0.3s;
}
.pkg-tab-btn.active, .pkg-tab-btn:hover { 
  background: var(--main); color: white; box-shadow: 0 8px 25px rgba(82, 196, 26, 0.35); 
}
.pkg-tab-content { display: none; animation: fadeIn 0.5s ease-in-out; }
.pkg-tab-content.active-content { display: block; }

@keyframes fadeIn { 
  from { opacity: 0; transform: translateY(15px); } 
  to { opacity: 1; transform: translateY(0); } 
}


/* --- CSS TAB CHO LỜI NHẬN XÉT (TESTIMONIALS) --- */
.testimonial-tabs { 
  display: flex; justify-content: center; gap: 15px; margin-bottom: 40px; flex-wrap: wrap; 
}
.testi-tab-btn {
  padding: 12px 30px; border: 2px solid var(--main); background: transparent; 
  border-radius: 50px; cursor: pointer; font-size: 1.15rem; font-weight: bold; 
  color: var(--main); transition: 0.3s;
}
.testi-tab-btn.active, .testi-tab-btn:hover { 
  background: var(--main); color: white; box-shadow: 0 8px 25px rgba(82, 196, 26, 0.35); 
}
.testi-tab-content { display: none; animation: fadeIn 0.5s ease-in-out; }
.testi-tab-content.active-content { display: block; }


/* --- Nút Cho Sả Ăn ở bụng gấu --- */
.belly {
  display: flex;
  align-items: center;
  justify-content: center;
  /* Giữ nguyên các thuộc tính cũ của belly */
  position: absolute;
  bottom: -30px;
  left: 50%;
  transform: translateX(-50%);
  width: 160px;
  height: 100px;
  background: #f0d8c0;
  border-radius: 50%;
}

.feed-btn {
  background: #ff4d4f;
  color: white;
  border: none;
  padding: 8px 18px;
  border-radius: 30px;
  font-weight: 900;
  font-size: 1rem;
  cursor: pointer;
  box-shadow: 0 5px 15px rgba(255, 77, 79, 0.4);
  animation: pulse 2s infinite;
  z-index: 10;
  transition: 0.3s;
}

.feed-btn:hover {
  background: #ff7875;
  transform: scale(1.15);
}

/* --- RESPONSIVE CHO CÁC TABS (MOBILE) --- */
/* =========================================
   TỐI ƯU SIÊU GỌN GÀNG CHO MOBILE (< 768px)
========================================= */
@media (max-width: 768px) {
  /* 1. Thu gọn khoảng trống thừa của các Section */
  .hero { padding: 100px 15px 50px !important; }
  .about, .tools-section, .packages-section, 
  .transparency, .testimonials, .faq, .referral, .diary { 
    padding: 45px 0 !important; 
  }
  .section-title { font-size: 2rem !important; margin-bottom: 30px !important; }

  /* 2. Thu nhỏ con gấu và chỉ số trên mobile */
  .hero h1 { font-size: 3rem !important; }
  .subtitle { font-size: 1.1rem !important; margin-bottom: 30px !important; }
  .cute-pet { transform: scale(0.85); margin: 30px auto 10px !important; }
  .stats { gap: 20px !important; }
  .stat h3 { font-size: 2.5rem !important; }

  /* 3. Thanh Menu Đáy (Mobile Bottom Nav Bar) */
  .mobile-bottom-nav {
    position: fixed;
    bottom: 0; left: 0; right: 0;
    height: 60px;
    background: #ffffff;
    display: flex;
    justify-content: space-around;
    align-items: center;
    box-shadow: 0 -3px 15px rgba(0, 0, 0, 0.12);
    z-index: 9999;
    border-top-left-radius: 20px;
    border-top-right-radius: 20px;
  }
  
  .mobile-bottom-nav .nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: #888;
    text-decoration: none;
    font-size: 0.75rem;
    font-weight: 600;
    width: 20%;
    transition: 0.2s;
  }

  .mobile-bottom-nav .nav-item i {
    font-size: 1.25rem;
    margin-bottom: 3px;
  }

  .mobile-bottom-nav .nav-item.active,
  .mobile-bottom-nav .nav-item:hover {
    color: var(--main);
  }

  /* Tạo khoảng trống dưới cùng để nội dung không bị thanh Menu Đáy che mất */
  body { padding-bottom: 70px !important; }
  
  /* Thu gọn chiều cao bảng thu chi trên mobile */
  .trans-table {
    max-height: 350px;
    overflow-y: auto;
    border: 2px solid var(--main);
  }
}

/* Ẩn thanh Menu Đáy khi xem trên Máy tính */
@media (min-width: 769px) {
  .mobile-bottom-nav { display: none !important; }
}

/* Responsive */
/* @media (max-width:992px) {
  .about-grid { grid-template-columns:1fr; text-align:center; }
  .about-img { margin:0 auto; }
}
@media (max-width:768px) {
  .hero h1 { font-size:3.8rem; }
  .stats { gap:40px; }
  .stat h3 { font-size:3.2rem; }
  .section-title { font-size:2.5rem; }
  .package { transform:none !important; }
} */