/* HEADER */
body{ margin:0; font-family: "Segoe UI", Tahoma, sans-serif; display:flex; flex-direction:column; min-height:100vh;}
.header{
  background: linear-gradient(to right, #b91c1c, #7f1d1d);
  color: yellow;
  padding: 15px;
  text-align: center;
}
.header h1{ margin:0; letter-spacing:1px; }
.header nav{ margin-top:8px; }
.header nav a{
  color: white; margin: 0 10px; text-decoration: none; position: relative; font-weight:600;
}
.header nav a::after{
  content:""; width:0%; height:2px; background: yellow; position:absolute; left:0; bottom:-3px; transition:0.3s;
}
.header nav a:hover::after{ width:100%; }

/* HERO */
.hero{
  position: relative;
  height: 500px;
  background: url("https://cdn.thuvienphapluat.vn/uploads/DanLuat-BanAn/2025/2/5Background-Tet-2026.png") center/cover no-repeat;
  display:flex; align-items:center; justify-content:center;
}
.overlay{ position:absolute; inset:0; }
.hero-content{ position:relative; color:white; text-align:center; }
.hero-content h2{ margin:0 0 10px; font-size:34px; }
.hero-content p{ margin:0; font-size:18px; }

/* SECTIONS */
.intro{
  text-align:center; padding:40px; background:#fff5f5;
}
.intro h2{ color: rgb(230, 14, 14); margin-bottom:10px; }
.intro p{ text-align:justify; line-height:1.6; max-width:950px; margin:0 auto; }

.highlight{ text-align:center; padding:40px; }
.grid{ display:flex; justify-content:center; gap:20px; flex-wrap:wrap; }
.card{
  background:url(https://png.pngtree.com/thumb_back/fh260/background/20210207/pngtree-yellow-lanterns-watermelon-and-rice-dumplings-vietnamese-new-year-background-image_557854.jpg) center/cover no-repeat;
  width:250px; padding:20px; border-radius:10px;
  cursor:pointer; transition:0.3s; border:2px solid #171717;
  font-size:16px;
}
.card:hover{ transform: translateY(-5px); border-color:red; }

/* “About” blocks dùng cho các trang nội dung */
.about{ width:80%; margin:40px auto; text-align:center; }
.about h1{ color:red; margin-bottom:30px; }
.about-box{
  background:#fff5f5; padding:20px; margin-bottom:20px;
  border-radius:10px; text-align:left; transition:0.3s;
}
.about-box:hover{ transform:translateY(-5px); background:#ffeaea; }
.about-box h2{ color:darkred; margin:0 0 10px; }
.about-box p{ text-align:justify; line-height:1.6; margin:0; }
.flex{ display:flex; align-items:center; gap:20px; flex-wrap:wrap; }
.flex img{ width:280px; border-radius:15px; box-shadow:0 4px 10px rgba(0,0,0,0.2); }
.flex img:hover{ transform:scale(1.05); transition:0.3s; }
.content{ flex:1; min-width:280px; }

/* Gallery */
.media{ padding:30px; background-color:#fff5f5; }
.gallery{ display:grid; grid-template-columns:repeat(3,1fr); gap:15px; margin-top:20px; }
.gallery img{ width:100%; border-radius:10px; cursor:pointer; transition:0.3s; }
.gallery img:hover{ transform:scale(1.05); }
.video-box{ margin-top:30px; text-align:center; }
.video-box iframe{ width:80%; height:400px; border-radius:15px; }

/* LIÊN HỆ */
.lien-he{ padding:30px; background-color:#fff5f5; }
.lien-he h2{ text-align:center; color:black; }
.lien-he input, .lien-he textarea{
  font-size:16px; width:100%; padding:12px;
  margin-top:5px; margin-bottom:15px;
  border-radius:10px; border:1px solid #ccc; box-sizing:border-box;
}
.lien-he input::placeholder, .lien-he textarea::placeholder{ font-size:16px; color:#888; }
.lien-he button{
  background:red; color:white; padding:10px 20px;
  border:none; border-radius:8px; cursor:pointer;
}
.lien-he button:hover{ background:darkred; }
.lien-he iframe{ margin-top:10px; border-radius:10px; border:0; width:100%; height:300px; }

/* FOOTER */
.footer{
  background-color:#b30000;
  color:white;
  text-align:center;
  padding:20px;
  margin-top:auto;
}
.footer p{ margin:5px 0; font-size:16px; }
/*xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx*/
/* =========================
   GIỚI THIỆU (INTRO) - ĐẸP
========================= */
.intro-section{
  padding:80px 0;
  background: radial-gradient(circle at 20% 20%, rgba(255,255,255,.30), transparent 55%),
              radial-gradient(circle at 80% 30%, rgba(255,255,255,.20), transparent 60%),
              linear-gradient(180deg, #f7d16a 0%, #f4c34e 70%, #f5c14a 100%);
}

.intro-wrap{
  width:95%;
  max-width:1400px;
  margin:auto;
  display:grid;
  grid-template-columns: 1.05fr 1fr;
  gap:50px;
  align-items:center;
}

/* Ảnh */
.intro-media{
  position:relative;
  border-radius:26px;
  overflow:hidden;
  box-shadow: 0 20px 45px rgba(0,0,0,.28);
}

.intro-media img{
  width:100%;
  height:520px;
  object-fit:cover;
  display:block;
  transform: scale(1.02);
}

.intro-badge{
  position:absolute;
  left:18px;
  bottom:18px;
  background: rgba(179,0,0,.92);
  color:#fff;
  padding:10px 14px;
  border-radius:14px;
  font-weight:900;
  letter-spacing:.3px;
  box-shadow: 0 12px 26px rgba(0,0,0,.22);
}

/* Nội dung */
.intro-content h2{
  margin:0 0 12px;
  font-size:38px;
  font-weight:900;
  color:#b30000;
  letter-spacing:.4px;
  text-shadow: 0 2px 10px rgba(0,0,0,.10);
}

.intro-lead{
  margin:0 0 20px;
  font-size:18px;
  line-height:1.85;
  color:#1f1f1f;
  max-width:620px;
}

/* Highlights */
.intro-highlights{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin:18px 0 24px;
}

.hl{
  display:flex;
  gap:14px;
  align-items:flex-start;
  background: rgba(255,255,255,.40);
  border: 1px solid rgba(255,255,255,.55);
  border-radius:18px;
  padding:14px 16px;
  box-shadow: 0 10px 22px rgba(0,0,0,.10);
  backdrop-filter: blur(6px);
}

.hl-icon{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:14px;
  background: rgba(255,255,255,.65);
  font-size:20px;
}

.hl h3{
  margin:0 0 4px;
  font-size:16px;
  font-weight:900;
  color:#111;
}

.hl p{
  margin:0;
  color:#333;
  line-height:1.6;
  font-size:15px;
}

/* Buttons */
.intro-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
}

.btn{
  text-decoration:none;
  font-weight:900;
  padding:12px 16px;
  border-radius:14px;
  display:inline-block;
  transition: .18s;
}

.btn.primary{
  background:#b30000;
  color:#fff;
  box-shadow: 0 14px 28px rgba(179,0,0,.30);
}

.btn.primary:hover{ transform: translateY(-2px); filter: brightness(1.05); }

.btn.ghost{
  background: rgba(255,255,255,.55);
  color:#111;
  border:1px solid rgba(255,255,255,.7);
}

.btn.ghost:hover{ transform: translateY(-2px); }

/* Responsive */
@media (max-width: 980px){
  .intro-wrap{
    grid-template-columns:1fr;
    gap:26px;
  }
  .intro-media img{ height:380px; }
  .intro-content h2{ font-size:30px; }
}
/*------------------------------------------------------------------------*/
/* ===== RESET ===== */
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family: Arial, Helvetica, sans-serif;
  background:#fff;
  color:#111;
}

/* ===== KHUNG TRANG (CANH GIỮA + RỘNG) ===== */
.page{
  width:95%;
  max-width:1400px;
  margin:40px auto 90px;
}

/* ===== MỖI BLOCK (MỖI PHONG TỤC) ===== */
.block{
  margin:0 auto 90px;
  text-align:center;
}

/* TIÊU ĐỀ */
.block h1{
  margin:0 0 14px;
  font-size:34px;
  font-weight:900;
}
.block h2{
  margin:0 0 14px;
  font-size:28px;
  font-weight:900;
}

/* NỘI DUNG (đoạn mô tả) */
.desc{
  width:min(1000px, 95%);
  margin:0 auto 22px;
  font-size:18px;
  line-height:1.85;
  color:#333;
  text-align:left;
}

/* ẢNH TO + ĐẸP */
.img{
  display:block;
  width:100%;
  max-width:1100px;
  margin:0 auto;
  border-radius:10px;
  box-shadow:0 18px 40px rgba(0,0,0,.25);
  object-fit:cover;
}

/* MOBILE */
@media (max-width: 900px){
  .block h1{font-size:26px}
  .block h2{font-size:22px}
  .desc{font-size:16px}
  .img{max-width:100%}
}
/* =========================
   HOME HERO HOÀNH TRÁNG
========================= */
.home-hero{
  position: relative;
  min-height: 88vh;
  background: url("img/hero.jpg") center/cover no-repeat;
  display:flex;
  align-items:center;
  overflow:hidden;
}

.home-overlay{
  position:absolute;
  inset:0;
  background: linear-gradient(90deg, rgba(0,0,0,.70) 0%, rgba(0,0,0,.25) 55%, rgba(0,0,0,.55) 100%);
}

.home-wrap{
  position:relative;
  z-index:2;
  width:95%;
  max-width:1400px;
  margin:auto;
  display:grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap:26px;
  align-items:center;
  padding:40px 0;
}

/* Left */
.home-badge{
  display:inline-block;
  background: rgba(255, 213, 74, .95);
  color:#111;
  font-weight:900;
  padding:10px 14px;
  border-radius:999px;
  box-shadow:0 14px 30px rgba(0,0,0,.25);
  margin-bottom:16px;
}

.home-title{
  margin:0 0 12px;
  font-size:64px;
  font-weight:900;
  letter-spacing:1px;
  color:#ffd54a;
  text-transform:uppercase;
  text-shadow:0 10px 25px rgba(0,0,0,.35);
}

.home-sub{
  margin:0 0 22px;
  max-width:720px;
  font-size:20px;
  line-height:1.85;
  color:#fff;
  opacity:.95;
}

/* Buttons */
.home-actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:22px;
}

.btn-primary{
  background:#b30000;
  color:#fff;
  text-decoration:none;
  padding:14px 18px;
  border-radius:16px;
  font-weight:900;
  box-shadow:0 18px 36px rgba(179,0,0,.35);
  transition:.18s;
}
.btn-primary:hover{ transform: translateY(-2px); filter:brightness(1.05); }

.btn-ghost{
  background: rgba(255,255,255,.12);
  color:#fff;
  text-decoration:none;
  padding:14px 18px;
  border-radius:16px;
  font-weight:900;
  border: 1px solid rgba(255,255,255,.22);
  transition:.18s;
}
.btn-ghost:hover{ transform: translateY(-2px); background: rgba(255,255,255,.18); }

/* Stats */
.home-stats{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
}
.stat{
  background: rgba(255,255,255,.12);
  border: 1px solid rgba(255,255,255,.18);
  padding:14px 16px;
  border-radius:18px;
  min-width:140px;
  backdrop-filter: blur(6px);
  box-shadow:0 14px 30px rgba(0,0,0,.20);
}
.stat-num{
  color:#ffd54a;
  font-weight:900;
  font-size:28px;
  line-height:1.1;
}
.stat-text{
  color:#fff;
  opacity:.95;
  margin-top:4px;
  font-weight:700;
}

/* Right feature cards */
.home-right{
  display:flex;
  flex-direction:column;
  gap:14px;
}

.feature-card{
  display:grid;
  grid-template-columns: 46px 1fr auto;
  align-items:center;
  gap:14px;
  padding:16px 16px;
  border-radius:20px;
  background: rgba(255,255,255,.88);
  box-shadow:0 18px 40px rgba(0,0,0,.25);
}

.feature-icon{
  width:46px;
  height:46px;
  display:grid;
  place-items:center;
  border-radius:16px;
  background:#ffe6a6;
  font-size:22px;
}

.feature-card h3{
  margin:0 0 4px;
  font-size:16px;
  font-weight:900;
  color:#111;
}
.feature-card p{
  margin:0;
  font-size:14px;
  color:#333;
  line-height:1.5;
}

.feature-link{
  text-decoration:none;
  font-weight:900;
  color:#b30000;
}
.feature-link:hover{ opacity:.85; }

/* Intro below hero */
.home-intro{
  background: linear-gradient(180deg, #fff7d0, #ffe6a6);
  padding:60px 0;
}
.home-intro-wrap{
  width:95%;
  max-width:1100px;
  margin:auto;
  text-align:center;
}
.home-intro-wrap h2{
  margin:0 0 12px;
  font-size:34px;
  font-weight:900;
  color:#b30000;
}
.home-intro-wrap p{
  margin:0 auto;
  font-size:18px;
  line-height:1.85;
  color:#222;
  max-width:900px;
}

/* Responsive */
@media (max-width: 980px){
  .home-wrap{ grid-template-columns:1fr; }
  .home-title{ font-size:42px; }
  .home-sub{ font-size:17px; }
  .feature-card{ grid-template-columns:46px 1fr; }
  .feature-link{ display:none; }
}
/* =========================
   VĂN HÓA - THIẾT KẾ ĐẸP
========================= */
.culture-section{
  padding: 80px 0;
  background: linear-gradient(180deg, #fff6cc, #ffe49a);
}

.culture-wrap{
  width:95%;
  max-width:1200px;
  margin:auto;
  text-align:center;
}

.culture-title{
  font-size:38px;
  font-weight:900;
  color:#b30000;
  margin:0 0 10px;
}

.culture-sub{
  max-width:800px;
  margin:0 auto 40px;
  font-size:18px;
  line-height:1.8;
  color:#333;
}

/* GRID */
.culture-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap:25px;
}

/* CARD */
.culture-card{
  background:#fff;
  border-radius:20px;
  overflow:hidden;
  box-shadow:0 15px 35px rgba(0,0,0,.15);
  padding-bottom:20px;
  transition:.3s;
  position:relative;
}

.culture-card:hover{
  transform: translateY(-6px);
  box-shadow:0 25px 50px rgba(0,0,0,.2);
}

.culture-card img{
  width:100%;
  height:220px;
  object-fit:cover;
}

.culture-icon{
  position:absolute;
  top:12px;
  left:12px;
  background:#b30000;
  color:#fff;
  padding:8px 12px;
  border-radius:12px;
  font-size:18px;
}

.culture-card h3{
  margin:18px 0 10px;
  font-size:20px;
  font-weight:900;
}

.culture-card p{
  padding:0 20px;
  font-size:16px;
  line-height:1.7;
  color:#444;
}

/* Mobile */
@media(max-width:768px){
  .culture-title{font-size:28px}
  .culture-sub{font-size:16px}
}
/* =========================
   LIÊN HỆ
========================= */
.contact-section{
  padding:80px 0;
  background: linear-gradient(180deg, #fff6cc, #ffe49a);
}

.contact-wrap{
  width:95%;
  max-width:1200px;
  margin:auto;
}

.contact-title{
  text-align:center;
  font-size:36px;
  font-weight:900;
  color:#b30000;
  margin-bottom:10px;
}

.contact-sub{
  text-align:center;
  margin:0 auto 40px;
  max-width:700px;
  font-size:18px;
  line-height:1.8;
  color:#333;
}

/* GRID */
.contact-grid{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:40px;
}

/* FORM */
.contact-form{
  background:#fff;
  padding:30px;
  border-radius:20px;
  box-shadow:0 15px 35px rgba(0,0,0,.15);
}

.input-group{
  margin-bottom:18px;
}

.input-group label{
  display:block;
  margin-bottom:6px;
  font-weight:700;
}

.input-group input,
.input-group textarea{
  width:100%;
  padding:12px;
  border-radius:10px;
  border:1px solid #ccc;
  font-size:15px;
}

.input-group input:focus,
.input-group textarea:focus{
  outline:none;
  border-color:#b30000;
}

.btn-submit{
  width:100%;
  padding:14px;
  border:none;
  border-radius:12px;
  background:#b30000;
  color:#fff;
  font-size:16px;
  font-weight:900;
  cursor:pointer;
  transition:.3s;
}

.btn-submit:hover{
  background:#900000;
}

/* INFO */
.contact-info{
  background:#fff;
  padding:30px;
  border-radius:20px;
  box-shadow:0 15px 35px rgba(0,0,0,.15);
}

.contact-info h3{
  margin-top:0;
  font-size:22px;
  font-weight:900;
  margin-bottom:15px;
}

.contact-info p{
  margin:8px 0;
  font-size:16px;
}

.contact-info iframe{
  width:100%;
  height:250px;
  border-radius:12px;
  margin-top:15px;
  border:0;
}

/* MOBILE */
@media(max-width:900px){
  .contact-grid{
    grid-template-columns:1fr;
  }
}