/* ============================================================
   Selfie Travel China — app-style design system
   ============================================================ */

:root{
  /* Brand */
  --teal-900:#0F3D3C;
  --teal-800:#14524F;
  --teal-700:#1D6663;
  --teal-600:#2E7D7B;   /* primary */
  --teal-500:#3C9491;
  --teal-100:#DDEEED;
  --teal-050:#F0F7F6;

  --sand:#F6D9A8;
  --coral:#E8734A;
  --gold:#F5A623;

  --ink:#0E1B1A;
  --ink-2:#3D5250;
  --ink-3:#6B807E;
  --line:#E4EBEA;
  --bg:#F2F6F6;
  --surface:#FFFFFF;

  --r-sm:12px;
  --r-md:18px;
  --r-lg:24px;
  --r-xl:32px;

  --sh-1:0 1px 2px rgba(14,27,26,.05), 0 2px 8px rgba(14,27,26,.05);
  --sh-2:0 4px 12px rgba(14,27,26,.07), 0 12px 28px rgba(14,27,26,.06);
  --sh-3:0 12px 32px rgba(14,27,26,.12);

  --tab-h:68px;
  --maxw:1180px;
  --ff:'Manrope',-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,'Helvetica Neue',Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--ff);background:var(--bg);color:var(--ink);
  font-size:15px;line-height:1.55;-webkit-font-smoothing:antialiased;
  padding-bottom:calc(var(--tab-h) + env(safe-area-inset-bottom));
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.2;letter-spacing:-.02em;font-weight:800}
p{margin:0 0 .8em}
:focus-visible{outline:3px solid var(--teal-500);outline-offset:2px;border-radius:6px}

.wrap{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 16px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- App bar ---------- */
.appbar{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.88);
  backdrop-filter:saturate(180%) blur(14px);-webkit-backdrop-filter:saturate(180%) blur(14px);
  border-bottom:1px solid var(--line);
}
.appbar__inner{display:flex;align-items:center;gap:12px;height:60px}
.appbar__back{
  width:40px;height:40px;flex:0 0 40px;display:grid;place-items:center;
  border-radius:50%;background:var(--teal-050);border:0;cursor:pointer;color:var(--teal-700);
}
.appbar__back:hover{background:var(--teal-100)}
.appbar__title{font-size:16px;font-weight:800;flex:1;min-width:0;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.appbar__actions{display:flex;gap:8px;align-items:center}

.brand{display:flex;align-items:center;gap:10px;flex:1;min-width:0}
.brand__mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--teal-600),var(--teal-800));color:#fff;
  font-weight:800;font-size:17px;box-shadow:var(--sh-1)
}
.brand__name{font-size:16px;font-weight:800;letter-spacing:-.02em;line-height:1.1}
.brand__sub{font-size:11px;color:var(--ink-3);font-weight:600;letter-spacing:.08em;text-transform:uppercase}

.icon-btn{
  width:40px;height:40px;border-radius:50%;border:1px solid var(--line);background:var(--surface);
  display:grid;place-items:center;cursor:pointer;color:var(--ink-2);box-shadow:var(--sh-1);
  transition:.15s;flex:0 0 40px;
}
.icon-btn:hover{color:var(--teal-600);border-color:var(--teal-100)}

/* Desktop nav (hidden on mobile — bottom tabs take over) */
.topnav{display:none;gap:4px;align-items:center}
.topnav a{
  padding:9px 14px;border-radius:999px;font-size:14px;font-weight:700;color:var(--ink-2);transition:.15s
}
.topnav a:hover{background:var(--teal-050);color:var(--teal-700)}
.topnav a[aria-current="page"]{background:var(--teal-600);color:#fff}

/* ---------- Bottom tab bar ---------- */
.tabbar{
  position:fixed;left:0;right:0;bottom:0;z-index:80;
  background:rgba(255,255,255,.94);backdrop-filter:saturate(180%) blur(16px);
  -webkit-backdrop-filter:saturate(180%) blur(16px);
  border-top:1px solid var(--line);
  padding-bottom:env(safe-area-inset-bottom);
  box-shadow:0 -4px 20px rgba(14,27,26,.06);
}
.tabbar__inner{display:flex;max-width:560px;margin:0 auto;height:var(--tab-h)}
.tab{
  flex:1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;
  font-size:10.5px;font-weight:700;color:var(--ink-3);transition:.15s;padding-top:4px;letter-spacing:-.01em
}
.tab svg{width:22px;height:22px;stroke-width:1.9}
.tab[aria-current="page"]{color:var(--teal-600)}
.tab[aria-current="page"] .tab__dot{opacity:1;transform:scale(1)}
.tab__dot{width:4px;height:4px;border-radius:50%;background:var(--teal-600);opacity:0;transform:scale(.4);transition:.2s}

/* ---------- Sections ---------- */
.section{padding:22px 0}
.section__head{display:flex;align-items:baseline;justify-content:space-between;gap:12px;margin-bottom:14px}
.section__title{font-size:19px;font-weight:800}
.section__link{font-size:13px;font-weight:700;color:var(--teal-600);white-space:nowrap}
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:11px;font-weight:800;letter-spacing:.1em;
  text-transform:uppercase;color:var(--teal-600);background:var(--teal-050);
  padding:6px 12px;border-radius:999px;margin-bottom:10px
}

/* ---------- Cards ---------- */
.card{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.card--pad{padding:18px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:15px 24px;border-radius:999px;border:0;cursor:pointer;
  font-size:15px;font-weight:800;letter-spacing:-.01em;transition:.18s;text-align:center
}
.btn--primary{background:var(--teal-600);color:#fff;box-shadow:0 6px 18px rgba(46,125,123,.32)}
.btn--primary:hover{background:var(--teal-700);transform:translateY(-1px)}
.btn--ghost{background:var(--surface);color:var(--teal-700);border:1.5px solid var(--teal-100)}
.btn--ghost:hover{background:var(--teal-050)}
.btn--dark{background:var(--teal-900);color:#fff}
.btn--block{display:flex;width:100%}
.btn--sm{padding:11px 18px;font-size:13.5px}

/* ---------- Chips / filters ---------- */
.chips{display:flex;gap:8px;overflow-x:auto;padding:2px 16px 10px;margin:0 -16px;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:9px 16px;border-radius:999px;background:var(--surface);
  border:1.5px solid var(--line);font-size:13px;font-weight:700;color:var(--ink-2);
  cursor:pointer;white-space:nowrap;transition:.15s
}
.chip:hover{border-color:var(--teal-100);color:var(--teal-700)}
.chip[aria-pressed="true"]{background:var(--teal-600);border-color:var(--teal-600);color:#fff}

/* ---------- Search ---------- */
.search{
  display:flex;align-items:center;gap:10px;background:var(--surface);border-radius:16px;
  padding:13px 16px;box-shadow:var(--sh-1);border:1px solid var(--line)
}
.search input{border:0;outline:0;flex:1;min-width:0;background:transparent;font-size:14.5px;font-weight:600}
.search input::placeholder{color:var(--ink-3);font-weight:500}
.search svg{color:var(--ink-3);flex:0 0 auto}

/* ---------- Quick actions ---------- */
.quick{display:grid;grid-template-columns:repeat(4,1fr);gap:10px}
.quick__item{
  background:var(--surface);border-radius:var(--r-md);padding:14px 6px;text-align:center;
  box-shadow:var(--sh-1);transition:.18s;border:1px solid transparent
}
.quick__item:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--teal-100)}
.quick__ico{
  width:44px;height:44px;margin:0 auto 8px;border-radius:14px;display:grid;place-items:center;
  font-size:21px;background:var(--teal-050)
}
.quick__label{font-size:11.5px;font-weight:700;color:var(--ink-2);line-height:1.25}

/* ---------- Hero ---------- */
.hero{
  position:relative;border-radius:var(--r-xl);overflow:hidden;color:#fff;
  background:linear-gradient(150deg,var(--teal-700),var(--teal-900) 70%);
  padding:30px 22px 26px;box-shadow:var(--sh-2);isolation:isolate
}
.hero::after{
  content:'';position:absolute;inset:0;z-index:-1;opacity:.5;
  background:
    radial-gradient(420px 260px at 88% 8%, rgba(246,217,168,.32), transparent 65%),
    radial-gradient(320px 240px at 10% 96%, rgba(60,148,145,.5), transparent 62%);
}
.hero h1{font-size:27px;line-height:1.16;margin-bottom:10px;letter-spacing:-.03em}
.hero p{color:rgba(255,255,255,.82);font-size:14.5px;margin-bottom:20px;max-width:46ch}
.hero__actions{display:flex;gap:10px;flex-wrap:wrap}
.hero__stats{display:flex;gap:20px;margin-top:24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.16)}
.hero__stat b{display:block;font-size:20px;font-weight:800;letter-spacing:-.02em}
.hero__stat span{font-size:11px;color:rgba(255,255,255,.7);font-weight:600}

/* ---------- Tour cards ---------- */
.tour-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.tour{
  display:flex;flex-direction:column;background:var(--surface);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:.2s;height:100%
}
.tour:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.tour__media{position:relative;aspect-ratio:4/3;background:var(--teal-050) center/cover no-repeat}
.tour__badge{
  position:absolute;top:8px;left:8px;background:rgba(255,255,255,.94);border-radius:999px;
  padding:4px 10px;font-size:10.5px;font-weight:800;color:var(--teal-700);
  display:flex;align-items:center;gap:4px;box-shadow:var(--sh-1)
}
.tour__save{
  position:absolute;top:8px;right:8px;width:30px;height:30px;border-radius:50%;
  background:rgba(255,255,255,.92);display:grid;place-items:center;border:0;cursor:pointer;
  color:var(--ink-2);box-shadow:var(--sh-1);transition:.15s
}
.tour__save:hover,.tour__save[aria-pressed="true"]{color:var(--coral)}
.tour__save[aria-pressed="true"] svg{fill:currentColor}
.tour__body{padding:12px 12px 14px;display:flex;flex-direction:column;flex:1;gap:8px}
.tour__title{font-size:13.5px;font-weight:800;line-height:1.3;letter-spacing:-.01em;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tour__meta{display:flex;align-items:center;gap:5px;font-size:11.5px;color:var(--ink-3);font-weight:600}
.tour__foot{margin-top:auto;display:flex;align-items:baseline;gap:7px;flex-wrap:wrap}
.price{font-size:17px;font-weight:800;color:var(--teal-700);letter-spacing:-.02em;white-space:nowrap}
.price small{font-size:11.5px;font-weight:700;opacity:.75}
.price-old{font-size:12.5px;color:var(--ink-3);text-decoration:line-through;font-weight:600}
.save-tag{
  font-size:10px;font-weight:800;color:var(--coral);background:#FDEEE8;
  padding:3px 7px;border-radius:6px;white-space:nowrap
}

/* ---------- Destination tiles (home) ---------- */
.dest-scroll{display:flex;gap:12px;overflow-x:auto;padding:2px 16px 12px;margin:0 -16px;scrollbar-width:none}
.dest-scroll::-webkit-scrollbar{display:none}
.dest{
  flex:0 0 152px;height:198px;border-radius:var(--r-md);position:relative;overflow:hidden;
  box-shadow:var(--sh-1);background:var(--teal-100) center/cover no-repeat;transition:.2s
}
.dest:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.dest::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(9,26,25,.85) 6%,rgba(9,26,25,.1) 55%,transparent)}
.dest__txt{position:absolute;left:12px;right:12px;bottom:11px;z-index:2;color:#fff}
.dest__name{font-size:14px;font-weight:800;line-height:1.2}
.dest__sub{font-size:11px;color:rgba(255,255,255,.78);font-weight:600}
.dest__price{
  position:absolute;top:10px;right:10px;z-index:2;background:rgba(255,255,255,.95);
  border-radius:999px;padding:4px 9px;font-size:11px;font-weight:800;color:var(--teal-700)
}

/* ---------- Promo banner ---------- */
.promo{
  position:relative;border-radius:var(--r-lg);overflow:hidden;padding:22px;color:#fff;
  background:linear-gradient(120deg,var(--coral),#D8542F);box-shadow:var(--sh-2)
}
.promo--teal{background:linear-gradient(120deg,var(--teal-600),var(--teal-800))}
.promo h3{font-size:18px;margin-bottom:6px}
.promo p{font-size:13.5px;color:rgba(255,255,255,.85);margin-bottom:14px}
.promo__emoji{position:absolute;right:-6px;bottom:-14px;font-size:92px;opacity:.16;line-height:1;pointer-events:none}

/* ---------- List rows ---------- */
.rows{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.row{
  display:flex;align-items:center;gap:13px;padding:15px 16px;border-bottom:1px solid var(--line);
  transition:.15s;cursor:pointer;width:100%;text-align:left;background:none;border-left:0;border-right:0;border-top:0
}
.row:last-child{border-bottom:0}
.row:hover{background:var(--teal-050)}
.row__ico{width:38px;height:38px;flex:0 0 38px;border-radius:11px;display:grid;place-items:center;background:var(--teal-050);font-size:17px}
.row__txt{flex:1;min-width:0}
.row__title{font-size:14px;font-weight:700;line-height:1.3}
.row__sub{font-size:12px;color:var(--ink-3);font-weight:500}
.row__chev{color:var(--ink-3);flex:0 0 auto}

/* ---------- Stats ---------- */
.stats{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.stat{background:var(--surface);border-radius:var(--r-md);padding:16px;box-shadow:var(--sh-1);text-align:center}
.stat b{display:block;font-size:24px;font-weight:800;color:var(--teal-600);letter-spacing:-.03em}
.stat span{font-size:11.5px;color:var(--ink-3);font-weight:600;line-height:1.3}

/* ---------- Reviews ---------- */
.rev-scroll{display:flex;gap:12px;overflow-x:auto;padding:2px 16px 12px;margin:0 -16px;scrollbar-width:none}
.rev-scroll::-webkit-scrollbar{display:none}
.review{
  flex:0 0 272px;background:var(--surface);border-radius:var(--r-md);padding:17px;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:10px
}
.review__stars{color:var(--gold);font-size:13px;letter-spacing:1px}
.review__text{font-size:13.5px;color:var(--ink-2);line-height:1.55;flex:1}
.review__who{display:flex;align-items:center;gap:10px;padding-top:10px;border-top:1px solid var(--line)}
.avatar{
  width:36px;height:36px;flex:0 0 36px;border-radius:50%;display:grid;place-items:center;
  background:var(--teal-100);color:var(--teal-800);font-weight:800;font-size:12.5px
}
.review__name{font-size:13px;font-weight:700;line-height:1.2}
.review__from{font-size:11.5px;color:var(--ink-3);font-weight:600}

/* ---------- Accordion (FAQ) ---------- */
.acc{background:var(--surface);border-radius:var(--r-lg);box-shadow:var(--sh-1);overflow:hidden}
.acc details{border-bottom:1px solid var(--line)}
.acc details:last-child{border-bottom:0}
.acc summary{
  padding:16px;font-size:14px;font-weight:700;cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;gap:12px
}
.acc summary::-webkit-details-marker{display:none}
.acc summary::after{content:'+';font-size:20px;font-weight:600;color:var(--teal-600);transition:.2s;flex:0 0 auto}
.acc details[open] summary::after{transform:rotate(45deg)}
.acc__body{padding:0 16px 16px;font-size:13.5px;color:var(--ink-2)}

/* ---------- Forms ---------- */
.field{margin-bottom:14px}
.field label{display:block;font-size:12.5px;font-weight:700;color:var(--ink-2);margin-bottom:6px}
.field .req{color:var(--coral)}
.input,select.input,textarea.input{
  width:100%;padding:13px 14px;border-radius:14px;border:1.5px solid var(--line);
  background:var(--surface);font-size:14.5px;font-weight:600;transition:.15s;outline:0
}
.input:focus{border-color:var(--teal-500);box-shadow:0 0 0 4px rgba(46,125,123,.12)}
textarea.input{min-height:110px;resize:vertical;font-weight:500;line-height:1.5}
select.input{
  appearance:none;-webkit-appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%236B807E' stroke-width='2.5' stroke-linecap='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat:no-repeat;background-position:right 14px center;padding-right:40px
}
.field__hint{font-size:11.5px;color:var(--ink-3);margin-top:5px;font-weight:500}
.grid-2{display:grid;grid-template-columns:1fr;gap:0 12px}

/* Rating stars input */
.rating{display:flex;gap:6px}
.rating button{
  width:42px;height:42px;border-radius:12px;border:1.5px solid var(--line);background:var(--surface);
  font-size:19px;cursor:pointer;line-height:1;transition:.15s;color:#D7DEDD
}
.rating button[data-on="1"]{color:var(--gold);border-color:var(--sand);background:#FFFBF3}

/* ---------- Detail page ---------- */
.detail__hero{
  position:relative;height:280px;background:var(--teal-100) center/cover no-repeat;border-radius:0 0 var(--r-xl) var(--r-xl)
}
.detail__hero::after{content:'';position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(to top,rgba(9,26,25,.6),transparent 55%)}
.detail__sheet{
  position:relative;z-index:2;margin-top:-34px;background:var(--surface);
  border-radius:var(--r-xl) var(--r-xl) 0 0;padding:22px 16px 20px;box-shadow:0 -8px 28px rgba(14,27,26,.08)
}
.detail__handle{width:42px;height:4px;border-radius:99px;background:var(--line);margin:0 auto 16px}
.detail__title{font-size:22px;line-height:1.2;margin-bottom:8px}
.feature-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:8px;margin:18px 0}
.feature{background:var(--teal-050);border-radius:var(--r-sm);padding:12px 4px;text-align:center}
.feature__ico{font-size:19px;margin-bottom:4px}
.feature__lb{font-size:10.5px;font-weight:700;color:var(--ink-2);line-height:1.25}
.included{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.included li{display:flex;gap:9px;font-size:13.5px;color:var(--ink-2);align-items:flex-start}
.included li::before{content:'✔';color:var(--teal-600);font-weight:800;flex:0 0 auto}

/* Sticky purchase bar */
.buybar{
  position:fixed;left:0;right:0;bottom:calc(var(--tab-h) + env(safe-area-inset-bottom));z-index:70;
  background:rgba(255,255,255,.96);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border-top:1px solid var(--line);padding:11px 16px;
  display:flex;align-items:center;gap:14px;box-shadow:0 -4px 20px rgba(14,27,26,.07)
}
.buybar__price{flex:0 0 auto}
.buybar__price small{display:block;font-size:10.5px;color:var(--ink-3);font-weight:700}
.buybar .btn{flex:1}

/* ---------- Empty state ---------- */
.empty{text-align:center;padding:48px 20px;color:var(--ink-3)}
.empty__ico{font-size:44px;margin-bottom:10px}
.empty b{display:block;color:var(--ink);font-size:15px;margin-bottom:4px}

/* ---------- Notes / callouts ---------- */
.note{
  background:var(--teal-050);border-left:3px solid var(--teal-600);border-radius:0 var(--r-sm) var(--r-sm) 0;
  padding:13px 15px;font-size:13px;color:var(--ink-2)
}
.note--warn{background:#FFF8EC;border-color:var(--gold)}

/* ---------- Footer ---------- */
.footer{padding:26px 0 30px;text-align:center;color:var(--ink-3);font-size:12px}
.footer__links{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;margin-bottom:12px;font-weight:700;font-size:13px}
.footer__links a:hover{color:var(--teal-600)}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:calc(var(--tab-h) + 24px);transform:translate(-50%,20px);
  background:var(--teal-900);color:#fff;padding:13px 20px;border-radius:999px;font-size:13.5px;
  font-weight:700;box-shadow:var(--sh-3);z-index:200;opacity:0;pointer-events:none;transition:.25s
}
.toast.show{opacity:1;transform:translate(-50%,0)}

/* ============================================================
   Responsive — the app layout expands into a desktop grid
   ============================================================ */
@media (min-width:600px){
  .tour-grid{grid-template-columns:repeat(3,1fr)}
  .stats{grid-template-columns:repeat(4,1fr)}
  .grid-2{grid-template-columns:1fr 1fr}
  .hero{padding:40px 34px}
  .hero h1{font-size:34px}
  .dest{flex:0 0 190px;height:238px}
}

@media (min-width:900px){
  body{padding-bottom:0}
  .tabbar{display:none}
  .topnav{display:flex}
  .appbar__inner{height:72px}
  .buybar{bottom:0}
  .section{padding:34px 0}
  .section__title{font-size:24px}
  .tour-grid{grid-template-columns:repeat(4,1fr);gap:18px}
  .tour__title{font-size:14.5px}
  .hero{padding:56px 48px}
  .hero h1{font-size:44px;max-width:16ch}
  .hero p{font-size:16px}
  .quick{grid-template-columns:repeat(6,1fr)}
  .detail__hero{height:380px;border-radius:var(--r-xl);margin-top:20px}
  .detail__sheet{border-radius:var(--r-xl);margin-top:-56px;padding:32px 36px}
  .detail__title{font-size:30px}
  .dest-scroll,.rev-scroll,.chips{padding-left:0;padding-right:0;margin-left:0;margin-right:0}
  .review{flex:0 0 320px}
}

@media (min-width:1100px){
  .detail-layout{display:grid;grid-template-columns:1fr 380px;gap:28px;align-items:start}
  .detail-layout__aside{position:sticky;top:92px}
  .buybar--inline{position:static;border:1px solid var(--line);border-radius:var(--r-lg);
    box-shadow:var(--sh-1);flex-direction:column;align-items:stretch;gap:12px;padding:20px;background:var(--surface)}
  .buybar--inline .btn{width:100%}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important}
}