/* =========================================================
   Việt Trail — style.css
   Phong cách: phiêu lưu, bản đồ (adventure). Xanh rừng đậm + cam hoàng hôn,
   nét vẽ tay, icon địa hình, nhiều nhãn.
   Bố cục khác các mẫu trước:
     - Header ngang có ô "Tìm chuyến" và chọn tiền tệ/ngôn ngữ
     - Hero: BẢN ĐỒ VIỆT NAM VẼ SVG bên phải với CHẤM ĐIỂM ĐẾN nhấp nháy, chữ trái
     - Thanh lọc NGANG dính dưới hero: điểm đến / ngày / ngân sách / kiểu tour
     - Card tour có LỊCH TRÌNH NGANG (dòng ngày D1–D4) ngay trong card, badge độ khó
     - Điểm đến: LƯỚI ẢNH LỆCH 2 hàng với nhãn vùng miền
     - Chi tiết tour: lịch trình dọc có ảnh mỗi ngày + hộp giá sticky + "gồm / không gồm"
     - Nhật ký: lưới bài viết có nhãn địa danh
   Ảnh: mỗi khối ảnh dùng biến --img trên thẻ HTML (đường dẫn ../images/…).
   ========================================================= */

:root{
  --forest:#1F4D3A;
  --forest-2:#2E6B50;
  --forest-soft:#E4F0E9;
  --sunset:#F26B21;
  --sunset-deep:#D4570F;
  --sunset-soft:#FDE8DC;
  --sand:#FBF6EE;
  --text:#22302A;
  --muted:#6C7A72;
  --line:#E2E8E4;
  --white:#fff;
  --radius:12px;
  --radius-lg:20px;
  --shadow:0 1px 2px rgba(31,77,58,.06), 0 10px 28px rgba(31,77,58,.1);
  --shadow-lg:0 24px 60px rgba(31,77,58,.18);
  --ph:linear-gradient(135deg,#E4F0E9 0%,#CFE3D6 55%,#B9D6C3 100%);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Be Vietnam Pro',system-ui,-apple-system,sans-serif;color:var(--text);background:var(--white);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
img{max-width:100%;display:block}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ph{background:var(--img,var(--ph)) center/cover no-repeat,var(--ph)}
.container{width:min(1200px,100% - 40px);margin-inline:auto}
h1,h2,h3,h4{font-family:'Lora','Playfair Display',Georgia,serif;font-weight:700;line-height:1.15;color:var(--forest)}
b,strong{font-weight:600}

/* ---------- Nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 24px;border-radius:999px;font-weight:700;font-size:14.5px;transition:.2s;white-space:nowrap}
.btn svg{width:16px;height:16px}
.btn--sunset{background:var(--sunset);color:#fff;box-shadow:0 8px 20px rgba(242,107,33,.3)}
.btn--sunset:hover{background:var(--sunset-deep)}
.btn--forest{background:var(--forest);color:#fff}
.btn--forest:hover{background:var(--forest-2)}
.btn--line{border:1.5px solid var(--line);color:var(--forest);background:#fff}
.btn--line:hover{border-color:var(--forest)}
.btn--sm{padding:9px 16px;font-size:13px}

/* ---------- Header ---------- */
.header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--line)}
.header__in{display:flex;align-items:center;gap:20px;min-height:72px}
.logo{display:flex;align-items:center;gap:10px;font-family:'Lora',serif;font-weight:700;font-size:21px;color:var(--forest)}
.logo__mark{width:40px;height:40px;border-radius:12px;background:var(--forest);color:#fff;display:grid;place-items:center}
.logo__mark svg{width:22px;height:22px;color:var(--sunset)}
.nav{display:flex;gap:2px;margin-left:10px}
.nav__link{padding:8px 12px;border-radius:999px;font-weight:600;font-size:14px;color:var(--text)}
.nav__link:hover{background:var(--forest-soft);color:var(--forest)}
.nav__link.is-active{color:var(--sunset)}
.hsearch{margin-left:auto;display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);border-radius:999px;padding:6px 6px 6px 14px;max-width:300px;width:100%}
.hsearch input{border:0;outline:none;font:inherit;font-size:13.5px;flex:1;min-width:0;background:transparent}
.hsearch button{width:32px;height:32px;border-radius:50%;background:var(--forest);color:#fff;display:grid;place-items:center}
.hsearch button svg{width:15px;height:15px}
.hmeta{display:flex;gap:4px;font-size:12.5px;font-weight:600;color:var(--muted)}
.hmeta span{padding:6px 8px;border-radius:8px}
.hmeta span:hover{background:var(--forest-soft)}
.burger{display:none;width:42px;height:42px;border-radius:12px;background:var(--forest-soft);place-items:center;color:var(--forest)}

/* ---------- Hero bản đồ ---------- */
.hero{background:var(--sand);padding:60px 0 100px;position:relative;overflow:hidden}
.hero__in{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--forest-soft);color:var(--forest);font-size:12.5px;font-weight:700}
.hero h1{font-size:clamp(38px,5vw,62px);margin:20px 0 16px}
.hero h1 em{font-style:italic;color:var(--sunset)}
.hero p{font-size:17px;color:var(--muted);max-width:500px}
.hero__cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero__stats{display:flex;gap:30px;margin-top:36px;flex-wrap:wrap}
.hero__stats b{display:block;font-family:'Lora',serif;font-size:28px;color:var(--forest);line-height:1}
.hero__stats span{font-size:12.5px;color:var(--muted)}
.map{position:relative;aspect-ratio:3/4;max-width:420px;justify-self:center;width:100%}
.map svg{width:100%;height:100%;overflow:visible}
.map path{fill:var(--forest-soft);stroke:var(--forest);stroke-width:1.5;stroke-dasharray:4 3}
.pin{position:absolute;width:14px;height:14px;border-radius:50%;background:var(--sunset);border:3px solid #fff;box-shadow:0 0 0 0 rgba(242,107,33,.5);animation:pulse 2.4s infinite;cursor:pointer}
.pin::after{content:attr(data-name);position:absolute;left:20px;top:-6px;white-space:nowrap;background:#fff;padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:700;color:var(--forest);box-shadow:var(--shadow)}
.pin:nth-child(2n){animation-delay:-.8s}.pin:nth-child(3n){animation-delay:-1.6s}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(242,107,33,.5)}70%{box-shadow:0 0 0 14px rgba(242,107,33,0)}100%{box-shadow:0 0 0 0 rgba(242,107,33,0)}}

/* Thanh lọc ngang dính dưới hero */
.filterbar{position:relative;z-index:2;margin-top:-50px}
.filterbar__in{background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr auto;overflow:hidden}
.filterbar__in > div{padding:18px 22px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:4px}
.filterbar label{font-size:11px;letter-spacing:1px;text-transform:uppercase;color:var(--muted);font-weight:700}
.filterbar select,.filterbar input{border:0;font:inherit;font-weight:600;font-size:14.5px;color:var(--text);background:transparent;outline:none;padding:0}
.filterbar .btn{border-radius:0;height:100%;padding:0 30px}

/* ---------- Section ---------- */
.section{padding:90px 0}
.section--sand{background:var(--sand)}
.section--forest{background:var(--forest);color:#fff}
.section--forest h2,.section--forest h3{color:#fff}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:30px;margin-bottom:40px;flex-wrap:wrap}
.section__title{font-size:clamp(28px,3.6vw,42px)}
.section__title em{font-style:italic;color:var(--sunset)}
.section__head p{color:var(--muted);max-width:480px}
.section--forest .section__head p{color:rgba(255,255,255,.7)}

/* ---------- Card tour có lịch trình ngang ---------- */
.tours{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.tour{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);overflow:hidden;display:flex;flex-direction:column;transition:.25s}
.tour:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px)}
.tour__media{position:relative;aspect-ratio:16/10}
.tour__media .ph{position:absolute;inset:0}
.tour__lv{position:absolute;top:12px;left:12px;display:flex;gap:6px}
.tour__lv span{background:#fff;padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700}
.tour__lv .hard{color:var(--sunset)}
.tour__days{position:absolute;right:12px;bottom:12px;background:var(--forest);color:#fff;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:700}
.tour__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.tour__body h3{font-size:19px}
.tour__loc{font-size:12.5px;color:var(--muted);margin-top:4px;display:flex;gap:6px;align-items:center}
.tour__loc svg{width:13px;height:13px;color:var(--sunset)}
.itin{display:flex;gap:0;margin:14px 0;position:relative;padding-top:10px}
.itin::before{content:"";position:absolute;left:12px;right:12px;top:14px;height:2px;background:var(--line)}
.itin div{flex:1;text-align:center;position:relative;font-size:11px;color:var(--muted);line-height:1.3}
.itin div::before{content:"";display:block;width:10px;height:10px;border-radius:50%;background:var(--forest);margin:0 auto 6px;position:relative;z-index:1;border:2px solid #fff;box-shadow:0 0 0 1px var(--forest)}
.itin div b{display:block;color:var(--text);font-size:11.5px}
.tour__foot{display:flex;justify-content:space-between;align-items:flex-end;margin-top:auto;padding-top:14px;border-top:1px dashed var(--line)}
.tour__price b{font-family:'Lora',serif;font-size:22px;color:var(--forest)}
.tour__price small{display:block;color:var(--muted);font-size:12px}
.tour__price s{color:var(--muted);font-size:12px;margin-right:6px}
.tour__rate{font-size:12px;color:var(--muted)}
.tour__rate b{color:var(--sunset)}

/* ---------- Điểm đến lưới lệch ---------- */
.dests{display:grid;grid-template-columns:repeat(4,1fr);grid-auto-rows:200px;gap:14px}
.dest{position:relative;border-radius:var(--radius);overflow:hidden;display:flex;align-items:flex-end;padding:16px;color:#fff}
.dest .ph{position:absolute;inset:0;transition:.4s}
.dest:hover .ph{transform:scale(1.05)}
.dest::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(31,77,58,.85))}
.dest div{position:relative;z-index:1}
.dest b{display:block;font-family:'Lora',serif;font-size:20px}
.dest small{font-size:12px;opacity:.85}
.dest .reg{position:absolute;top:12px;left:12px;background:rgba(255,255,255,.9);color:var(--forest);padding:4px 10px;border-radius:999px;font-size:11px;font-weight:700;z-index:1}
.dest--w{grid-column:span 2}.dest--t{grid-row:span 2}

/* ---------- Vì sao ---------- */
.why{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.why div{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius-lg);padding:28px}
.why svg{width:32px;height:32px;color:var(--sunset);margin-bottom:16px}
.why b{display:block;font-family:'Lora',serif;font-size:19px;margin-bottom:6px}
.why p{font-size:14px;opacity:.75}

/* ---------- Nhận xét ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.quote{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:26px;position:relative}
.quote .tag{display:inline-block;background:var(--sunset-soft);color:var(--sunset-deep);font-size:11.5px;font-weight:700;padding:4px 10px;border-radius:999px;margin-bottom:12px}
.quote p{font-size:14.5px}
.quote__who{display:flex;align-items:center;gap:12px;margin-top:18px}
.quote__who .ph{width:42px;height:42px;border-radius:50%}
.quote__who b{display:block;font-size:13.5px}
.quote__who small{color:var(--muted);font-size:12px}

/* ---------- Trang danh sách ---------- */
.pagehead{background:var(--sand);padding:56px 0}
.pagehead h1{font-size:clamp(32px,4.4vw,50px);margin-top:14px}
.pagehead p{color:var(--muted);max-width:600px;margin-top:12px;font-size:16px}
.crumbs{display:flex;gap:10px;font-size:13px;color:var(--muted);margin-top:14px}
.listing{display:grid;grid-template-columns:260px minmax(0,1fr);gap:30px;align-items:start}
.filters{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;position:sticky;top:90px}
.filters h3{font-size:16px;margin-bottom:4px}
.fg{padding:14px 0;border-top:1px solid var(--line)}
.fg h4{font-size:13px;margin-bottom:8px;font-family:'Be Vietnam Pro',sans-serif;color:var(--text)}
.fg label{display:flex;align-items:center;gap:8px;padding:4px 0;font-size:13.5px;cursor:pointer}
.fg input{accent-color:var(--forest)}
.fg small{color:var(--muted);margin-left:auto}
.fg .range{display:flex;gap:8px}.fg .range input{flex:1;border:1px solid var(--line);border-radius:8px;padding:7px 9px;font:inherit;font-size:13px;width:100%}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:18px;flex-wrap:wrap;font-size:14px}
.toolbar select{border:1px solid var(--line);border-radius:999px;padding:7px 14px;font:inherit;font-size:13.5px;outline:none}
.tours--2{grid-template-columns:repeat(2,1fr)}

/* ---------- Chi tiết tour ---------- */
.gallery{display:grid;grid-template-columns:2fr 1fr;grid-template-rows:220px 220px;gap:10px;border-radius:var(--radius-lg);overflow:hidden}
.gallery .ph:first-child{grid-row:span 2}
.detail{display:grid;grid-template-columns:minmax(0,1fr) 360px;gap:40px;align-items:start;margin-top:30px}
.detail h2{font-size:26px;margin:40px 0 14px}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.facts div{background:var(--sand);border-radius:var(--radius);padding:14px;font-size:12.5px;color:var(--muted)}
.facts b{display:block;font-family:'Lora',serif;font-size:17px;color:var(--forest)}
.days{display:grid;gap:0}
.day{display:grid;grid-template-columns:70px 1fr 200px;gap:20px;padding:20px 0;border-top:1px solid var(--line)}
.day__n{font-family:'Lora',serif;font-size:13px;color:var(--sunset);font-weight:700}
.day__n b{display:block;font-size:26px;color:var(--forest)}
.day h3{font-size:17px;margin-bottom:6px}
.day p{color:var(--muted);font-size:14px}
.day__meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:8px;font-size:12px;color:var(--muted)}
.day__meta span{background:var(--forest-soft);color:var(--forest);padding:3px 9px;border-radius:999px;font-weight:600}
.day .ph{aspect-ratio:4/3;border-radius:var(--radius)}
.incl{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.incl div{background:var(--sand);border-radius:var(--radius);padding:20px}
.incl h4{font-size:14px;margin-bottom:10px;font-family:'Be Vietnam Pro',sans-serif}
.incl li{list-style:none;display:flex;gap:8px;font-size:13.5px;padding:3px 0}
.incl li svg{width:15px;height:15px;color:var(--forest);margin-top:3px}
.incl .no li svg{color:var(--muted)}
.bookbox{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:24px;box-shadow:var(--shadow-lg);position:sticky;top:90px}
.bookbox .price{font-family:'Lora',serif;font-size:32px;color:var(--forest);line-height:1}
.bookbox .price small{font-family:'Be Vietnam Pro',sans-serif;font-size:12.5px;color:var(--muted)}
.bookbox .field{margin-top:12px}
.bookbox label{display:block;font-size:11.5px;color:var(--muted);font-weight:700;margin-bottom:5px}
.bookbox select,.bookbox input{width:100%;border:1px solid var(--line);border-radius:10px;padding:11px 12px;font:inherit;outline:none}
.bookbox .btn{width:100%;margin-top:16px}
.bookbox .tot{display:flex;justify-content:space-between;margin-top:14px;padding-top:12px;border-top:1px solid var(--line);font-size:14px}
.bookbox small.note{display:block;color:var(--muted);font-size:12px;margin-top:10px;text-align:center}
.dates{display:flex;flex-wrap:wrap;gap:8px}
.dates label{border:1.5px solid var(--line);border-radius:10px;padding:8px 12px;font-size:12.5px;cursor:pointer;text-align:center;display:flex;flex-direction:column}
.dates label small{color:var(--sunset);font-weight:700;font-size:11px}
.dates input{display:none}
.dates label:has(input:checked){border-color:var(--forest);background:var(--forest-soft)}

/* ---------- Nhật ký ---------- */
.posts{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post{display:block}
.post .ph{aspect-ratio:16/10;border-radius:var(--radius-lg);position:relative}
.post .ph span{position:absolute;left:12px;top:12px;background:#fff;color:var(--forest);padding:4px 10px;border-radius:999px;font-size:11.5px;font-weight:700}
.post h3{font-size:18px;margin:14px 0 6px}
.post p{color:var(--muted);font-size:13.5px}
.post small{color:var(--muted);font-size:12px}

/* ---------- Form ---------- */
.form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:36px;box-shadow:var(--shadow)}
.form__grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:6px}
.field--full{grid-column:1/-1}
.field label{font-size:13px;font-weight:600}
.field input,.field select,.field textarea{border:1.5px solid var(--line);border-radius:10px;padding:12px 14px;font:inherit;outline:none;background:#fff}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--forest)}
.field textarea{min-height:100px;resize:vertical}
.contact{display:grid;grid-template-columns:1fr 1.2fr;gap:50px}
.contact__list{display:grid;gap:18px;margin-top:24px}
.contact__list b{display:block;font-size:11.5px;letter-spacing:1px;text-transform:uppercase;color:var(--muted)}
.faq details{border:1px solid var(--line);border-radius:var(--radius);padding:16px 22px;margin-bottom:10px;background:#fff}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;font-weight:600;color:var(--forest)}
.faq summary::-webkit-details-marker{display:none}
.faq summary span{color:var(--sunset)}
.faq p{color:var(--muted);margin-top:10px;font-size:14px}

/* ---------- CTA ---------- */
.cta{background:var(--sunset);color:#fff;border-radius:var(--radius-lg);padding:50px;display:flex;justify-content:space-between;align-items:center;gap:30px;flex-wrap:wrap}
.cta h2{color:#fff;font-size:30px}
.cta p{opacity:.9;margin-top:6px}
.cta .btn{background:#fff;color:var(--sunset-deep)}

/* ---------- Footer ---------- */
.footer{background:var(--forest);color:#fff;padding:60px 0 0;margin-top:40px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px}
.footer .logo{color:#fff}.footer .logo__mark{background:rgba(255,255,255,.12)}
.footer__col p{opacity:.7;font-size:13.5px;margin-top:14px;max-width:300px}
.footer__col h4{color:var(--sunset);font-family:'Be Vietnam Pro',sans-serif;font-size:12px;letter-spacing:1.5px;text-transform:uppercase;margin-bottom:16px}
.footer__col a{display:block;padding:4px 0;font-size:14px;opacity:.85}
.footer__col a:hover{opacity:1;color:var(--sunset)}
.footer__bar{margin-top:50px;border-top:1px solid rgba(255,255,255,.12);padding:18px 0;font-size:12.5px;opacity:.6;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap}

/* ---------- Responsive ---------- */
@media (max-width:1100px){.tours{grid-template-columns:repeat(2,1fr)}.dests{grid-template-columns:repeat(2,1fr)}.why,.quotes,.posts{grid-template-columns:repeat(2,1fr)}.footer__grid{grid-template-columns:1fr 1fr}.filterbar__in{grid-template-columns:1fr 1fr 1fr}.filterbar__in > div:nth-child(4){grid-column:1/3}.filterbar .btn{grid-column:3;padding:18px}}
@media (max-width:980px){
  .nav,.hmeta{display:none}
  .nav.is-open{display:flex;position:fixed;inset:72px 0 auto 0;flex-direction:column;background:#fff;border-bottom:1px solid var(--line);padding:12px 20px 20px;z-index:60}
  .nav.is-open .nav__link{padding:12px 14px}
  .hsearch{display:none}
  .burger{display:grid;margin-left:auto}
  .hero__in{grid-template-columns:1fr}
  .map{max-width:340px}
  .listing{grid-template-columns:1fr}
  .filters{position:static}
  .detail{grid-template-columns:1fr}
  .bookbox{position:static}
  .day{grid-template-columns:60px 1fr}
  .day .ph{grid-column:2}
  .contact{grid-template-columns:1fr}
  .facts{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:640px){
  .container{width:min(1200px,100% - 32px)}
  .section{padding:60px 0}
  .tours,.tours--2,.dests,.why,.quotes,.posts,.form__grid,.incl{grid-template-columns:1fr}
  .dests{grid-auto-rows:180px}.dest--w,.dest--t{grid-column:auto;grid-row:auto}
  .filterbar__in{grid-template-columns:1fr}.filterbar__in > div,.filterbar .btn{grid-column:1;border-right:0;border-bottom:1px solid var(--line)}
  .footer__grid{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr;grid-template-rows:200px 160px 160px}.gallery .ph:first-child{grid-row:auto}
  .form{padding:24px}
  .cta{padding:32px 24px}
}