:root{--moss:#0B3B2E;--moss-2:#14543F;--neon:#00E676;--paper:#F2F5F3;--mint:#EAF7EF;--line:#D5E0D9;--ink:#10241C;--muted:#56705F;--white:#FFFFFF;--warn:#B4531A;--warn-bg:#FFF3E8}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
section,#lich,#xong{scroll-margin-top:72px}
body{margin:0;font-family:"Be Vietnam Pro",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;color:var(--ink);background:var(--paper);line-height:1.6;font-size:16px}
a{color:var(--moss-2)}
.wrap{max-width:1000px;margin:0 auto;padding:0 20px}
.wide{max-width:1280px;margin:0 auto;padding:0 20px}
:focus-visible{outline:3px solid var(--neon);outline-offset:2px}
button{font:inherit}

.top{padding:36px 0 8px;text-align:center}
.brand{font-weight:800;font-size:18px}
.brand span{color:var(--moss-2)}
.top h1{font-size:clamp(28px,4.4vw,44px);line-height:1.2;margin:18px auto 10px;max-width:22ch;font-weight:800}
.top p{color:var(--muted);max-width:60ch;margin:0 auto 22px;font-size:17px}
.toggle{display:inline-flex;background:#E1E8E3;border-radius:999px;padding:4px;gap:4px}
.toggle button{border:0;background:transparent;padding:9px 22px;border-radius:999px;color:var(--muted);font-weight:600;cursor:pointer}
.toggle button[aria-pressed="true"]{background:var(--white);color:var(--ink);box-shadow:0 1px 2px rgba(11,59,46,.15)}

/* Booking */
.booking{background:var(--white);border:1px solid var(--line);border-radius:18px;padding:20px 22px;margin:26px 0 0}
.booking-head{display:flex;flex-wrap:wrap;justify-content:space-between;gap:8px 20px;align-items:baseline;margin-bottom:14px}
.booking-head b{font-size:18px}
.booking-head span{color:var(--muted);font-size:14px}
.days{display:grid;grid-template-columns:repeat(7,minmax(92px,1fr));gap:8px;overflow-x:auto}
.day{border:1.5px solid var(--line);border-radius:12px;padding:10px;text-align:center;font-size:14px}
.day b{display:block;font-size:15px}
.day span{font-size:13px;color:var(--moss-2);font-weight:600}
.day.full{background:#F4F4F4;color:#8A958F}.day.full span{color:#8A958F}
.day.nogap span{color:var(--warn)}
.day.nghi{background:#F4F4F4;color:#8A958F}.day.nghi span{color:#8A958F}
.eta{display:grid;grid-template-columns:repeat(4,1fr);gap:8px 20px;margin-top:14px;font-size:14px;color:var(--muted)}
.eta b{color:var(--ink);display:block;font-size:15px}

/* Plans */
.plans{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin:22px 0 20px}
.plan{background:var(--white);border:1px solid var(--line);border-radius:22px;padding:26px 24px;display:flex;flex-direction:column}
.plan.hl{background:var(--mint);border:2px solid var(--moss-2)}
.plan-head{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:center;gap:6px 8px;min-height:30px}
.plan-name{white-space:nowrap}
.plan-name{font-weight:700;font-size:17px}
.badge{font-size:12px;font-weight:700;color:var(--moss);background:var(--neon);padding:4px 10px;border-radius:999px;white-space:nowrap}
.plan h2{font-size:25px;line-height:1.25;margin:16px 0 8px;font-weight:800}
.plan .desc{color:var(--muted);font-size:15px;margin:0;min-height:72px}
.amount{margin:18px 0 2px}
.oldrow{display:flex;align-items:center;gap:8px;min-height:26px}
.old{color:#8A958F;font-size:17px;font-weight:600}
.old:empty,.off:empty{display:none}
.off{font-size:12px;font-weight:800;color:var(--white);background:var(--warn);padding:2px 8px;border-radius:999px}
.pricerow{display:flex;align-items:baseline;gap:6px;flex-wrap:wrap}
.pricerow .from{font-size:15px;color:var(--muted)}
.pricerow .num{font-size:34px;font-weight:800;letter-spacing:-.5px;line-height:1.15}
.pricerow .unit{color:var(--muted);font-size:15px}
.deposit{font-size:14px;color:var(--muted);min-height:22px}
.cta{display:block;width:100%;margin:16px 0 22px;padding:13px 16px;border-radius:999px;border:0;background:var(--moss);color:var(--white);font-weight:700;cursor:pointer}
.plan.hl .cta{background:var(--neon);color:var(--moss)}
.cta:hover{filter:brightness(1.08)}
.inc{font-weight:700;font-size:15px;margin:0 0 12px}
.feat{list-style:none;padding:0;margin:0 0 20px;flex:1}
.feat li{display:grid;grid-template-columns:22px 1fr;gap:10px;margin-bottom:11px;font-size:15px;line-height:1.45}
.feat svg{width:18px;height:18px;margin-top:2px;color:var(--moss-2)}
.feat li.time{font-weight:700}
.foot{font-size:13px;color:var(--muted);border-top:1px solid var(--line);padding-top:14px}

.promise{display:grid;grid-template-columns:repeat(3,1fr);background:var(--moss);color:var(--white);border-radius:18px;overflow:hidden;margin-bottom:12px}
.promise div{padding:22px 24px;border-right:1px solid rgba(255,255,255,.14)}
.promise div:last-child{border-right:0}
.promise b{display:block;font-size:22px;color:var(--neon);line-height:1.2;margin-bottom:6px}
.promise span{color:#CFE3D8;font-size:15px}

section{padding:52px 0}
h2.sec{font-size:clamp(24px,3.2vw,30px);line-height:1.25;margin:0 0 8px;font-weight:800}
.lead{color:var(--muted);margin:0 0 26px;max-width:62ch}
.steps{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(5,1fr);gap:20px;counter-reset:s}
.steps li{counter-increment:s;padding-top:10px;border-top:3px solid var(--moss)}
.steps li::before{content:counter(s);font-weight:800;font-size:26px;color:var(--moss-2);display:block}
.steps b{display:block;margin-bottom:4px}
.steps span{color:var(--muted);font-size:14px}

.form-area{background:var(--white);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.form-layout{display:grid;grid-template-columns:1fr 310px;gap:32px;align-items:start}
fieldset{border:0;padding:0;margin:0 0 26px}
legend{font-weight:800;font-size:18px;margin-bottom:12px;padding:0}
.field{margin-bottom:16px}
.lbl{display:block;font-weight:600;margin-bottom:6px}
.hint{color:var(--muted);font-size:14px;font-weight:400}
input[type=text],input[type=tel],input[type=url],input[type=date],select,textarea{width:100%;font:inherit;padding:11px 12px;border:1.5px solid var(--line);border-radius:10px;background:var(--white);color:var(--ink)}
textarea{min-height:110px;resize:vertical}
input:focus,select:focus,textarea:focus{border-color:var(--moss-2);outline:none;box-shadow:0 0 0 3px rgba(0,230,118,.35)}
.choices{display:flex;flex-wrap:wrap;gap:8px}
.choices label{display:flex;align-items:center;gap:8px;border:1.5px solid var(--line);border-radius:10px;padding:9px 12px;cursor:pointer;font-size:15px}
.choices input{accent-color:var(--moss-2)}
.choices label:has(input:checked){border-color:var(--moss-2);background:var(--mint)}
.choices label:has(input:disabled){opacity:.5;cursor:not-allowed}
.choices label.suggest{border-color:var(--warn);background:var(--warn-bg)}
.big-choice label{flex:1 1 220px;flex-direction:column;align-items:flex-start;gap:2px;padding:14px 16px}
.big-choice label b{display:flex;gap:8px;align-items:center}
.big-choice label span{color:var(--muted);font-size:14px;padding-left:24px}
.row2{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.err{color:var(--warn);font-size:14px;margin-top:4px;display:none}
.field.invalid .err{display:block}
.field.invalid input,.field.invalid textarea,.field.invalid select{border-color:var(--warn)}
.field.invalid .choices label{border-color:var(--warn)}
[hidden]{display:none!important}
.need-msg{margin-top:8px;font-size:14px;padding:10px 12px;border-radius:10px;background:var(--warn-bg);color:#6B3510}
.need-msg.ok{background:var(--mint);color:var(--moss)}
.need-msg:empty{display:none}

.meter{position:sticky;top:16px;background:var(--moss);color:var(--white);border-radius:18px;padding:22px}
.meter .size{font-size:40px;font-weight:800;line-height:1.1;color:var(--neon)}
.meter .size-name{font-weight:700;margin:4px 0 12px}
.meter .old{color:#9DB8AA;font-size:15px}
.meter .total{font-size:28px;font-weight:800}
.pay{margin:10px 0 14px;font-size:14px;color:#CFE3D8}
.pay div{display:flex;justify-content:space-between;gap:10px;padding:5px 0;border-bottom:1px dashed rgba(255,255,255,.18)}
.pay b{color:var(--white);text-align:right}
.meter ul{margin:0;padding-left:18px;color:#CFE3D8;font-size:14px}
.meter .why{border-top:1px solid rgba(255,255,255,.18);margin-top:14px;padding-top:12px;font-size:14px;color:#CFE3D8}

.submit{background:var(--moss);color:var(--white);border:0;border-radius:999px;padding:14px 26px;font-weight:700;cursor:pointer}
.result{display:none;margin-top:16px;border:2px solid var(--moss-2);border-radius:14px;padding:20px;background:#F6FBF8}
.result.show{display:block}
.result pre{white-space:pre-wrap;font-family:inherit;font-size:14px;background:var(--white);border:1px solid var(--line);border-radius:10px;padding:14px;max-height:340px;overflow:auto}
.actions{display:flex;flex-wrap:wrap;gap:10px;margin-top:12px}
.ghost{background:transparent;color:var(--moss);border:2px solid var(--moss);border-radius:999px;padding:12px 22px;font-weight:700;cursor:pointer}
.toast{color:var(--moss-2);font-weight:700;align-self:center}

.terms{display:grid;grid-template-columns:repeat(2,1fr);gap:12px 32px;padding:0;margin:0;list-style:none}
.terms li{padding-left:18px;position:relative}
.terms li::before{content:"";position:absolute;left:0;top:.7em;width:8px;height:8px;background:var(--moss-2)}
footer{background:var(--moss);color:#CFE3D8;padding:28px 0;font-size:14px}

@media (max-width:1100px){.plans{grid-template-columns:repeat(2,1fr)}.plan .desc{min-height:0}.eta{grid-template-columns:repeat(2,1fr)}}
@media (max-width:820px){
  .form-layout{grid-template-columns:1fr}.meter{position:static;order:-1}
  .row2,.terms{grid-template-columns:1fr}.steps{grid-template-columns:1fr 1fr}
  .promise{grid-template-columns:1fr}.promise div{border-right:0;border-bottom:1px solid rgba(255,255,255,.14)}
}
@media (max-width:600px){.plans{grid-template-columns:1fr}.eta{grid-template-columns:1fr}}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* ════════════ Bổ sung cho bản chạy thật ════════════ */
body{-webkit-text-size-adjust:100%}
img{max-width:100%;height:auto;display:block}

/* Thanh trên: logo + liên hệ */
.nav{position:sticky;top:0;z-index:40;background:rgba(242,245,243,.92);backdrop-filter:blur(8px);
  -webkit-backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
.nav .wide{display:flex;align-items:center;gap:12px;height:58px}
.nav .logo{display:flex;align-items:center;gap:8px;font-weight:800;font-size:17px;color:var(--ink);text-decoration:none}
.nav .logo img{width:28px;height:28px;border-radius:7px}
.nav .logo span{color:var(--moss-2)}
.nav .sp{flex:1}
.nav .home{font-size:14px;color:var(--muted);text-decoration:none;white-space:nowrap}
.btn-zalo{display:inline-flex;align-items:center;gap:8px;background:#0068FF;color:#fff;border:0;
  border-radius:999px;padding:9px 16px;font-weight:700;font-size:14px;text-decoration:none;white-space:nowrap;cursor:pointer}
.btn-zalo:hover{filter:brightness(1.08)}
.btn-zalo svg{width:18px;height:18px}
.btn-zalo.lon{padding:14px 24px;font-size:16px}

.lienhe{display:flex;flex-wrap:wrap;align-items:center;justify-content:center;gap:10px 16px;
  margin:0 auto 20px;font-size:15px;color:var(--muted)}
.lienhe b{color:var(--ink)}
.lienhe a{color:var(--moss-2);font-weight:700;text-decoration:none}
.lienhe a.btn-zalo,.actions a.btn-zalo,.lh-card a.btn-zalo{color:#fff}
.nav .logo b{font-weight:800}

/* Lịch thời gian thực */
.song{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--moss-2);font-weight:600}
.song i{width:8px;height:8px;border-radius:50%;background:var(--neon);box-shadow:0 0 0 0 rgba(0,230,118,.6);
  animation:nhip 2s infinite}
.song.loi{color:var(--warn)}.song.loi i{background:var(--warn);animation:none}
@keyframes nhip{0%{box-shadow:0 0 0 0 rgba(0,230,118,.55)}70%{box-shadow:0 0 0 8px rgba(0,230,118,0)}100%{box-shadow:0 0 0 0 rgba(0,230,118,0)}}
.days{scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;padding-bottom:4px}
.day{scroll-snap-align:start;transition:background .3s,border-color .3s}
.day.today{border-color:var(--moss-2);box-shadow:inset 0 0 0 1px var(--moss-2)}
.day.con span{color:var(--moss-2)}
.day.cho{color:#A5B1AA}.day.cho span{color:#A5B1AA}
.day.moi{animation:loe .9s ease}
@keyframes loe{0%{background:var(--mint)}100%{background:transparent}}
.eta b.cho{color:#A5B1AA}

/* Feedback */
.fb-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
.fb{margin:0;background:var(--white);border:1px solid var(--line);border-radius:16px;overflow:hidden}
.fb img{width:100%;aspect-ratio:1/1;object-fit:cover;object-position:top;cursor:zoom-in;background:#E9EEEB}
.fb figcaption{padding:12px 14px;font-size:14px;color:var(--ink);font-weight:600;line-height:1.4}
.fb-note{color:var(--muted);font-size:13px;margin:14px 0 0}

/* Ô bẫy chống spam — người thật không thấy */
.bay{position:absolute!important;left:-9999px!important;width:1px;height:1px;overflow:hidden}

/* Gửi phiếu */
.submit[disabled]{opacity:.65;cursor:progress}
.form-err{display:none;margin:0 0 14px;padding:12px 14px;border-radius:10px;background:var(--warn-bg);
  color:#6B3510;font-size:15px}
.form-err.show{display:block}
.xong{display:none;margin-top:16px;border:2px solid var(--moss-2);border-radius:16px;padding:22px;background:#F6FBF8}
.xong.show{display:block}
.xong h3{margin:0 0 6px;font-size:22px}
.xong .ma{display:inline-block;font-weight:800;letter-spacing:.5px;background:var(--moss);color:var(--neon);
  padding:4px 12px;border-radius:8px;margin:4px 0 12px}
.xong dl{display:grid;grid-template-columns:auto 1fr;gap:6px 14px;margin:0 0 14px;font-size:15px}
.xong dt{color:var(--muted)}.xong dd{margin:0;font-weight:600}
.xong .giu{font-size:14px;color:#6B3510;background:var(--warn-bg);border-radius:10px;padding:10px 12px;margin:0 0 14px}
.xong pre{white-space:pre-wrap;font-family:inherit;font-size:13px;background:var(--white);border:1px solid var(--line);
  border-radius:10px;padding:12px;max-height:260px;overflow:auto;margin:12px 0 0}
.xong details summary{cursor:pointer;color:var(--moss-2);font-weight:600;font-size:14px;margin-top:12px}

/* Khối liên hệ cuối trang */
.lh-card{background:var(--moss);color:var(--white);border-radius:20px;padding:28px;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:18px}
.lh-card h2{margin:0 0 4px;font-size:24px}
.lh-card p{margin:0;color:#CFE3D8}
.lh-card .so{font-size:26px;font-weight:800;color:var(--neon);text-decoration:none;display:block;margin-top:6px}
footer a{color:#CFE3D8}

/* Nút Zalo ghim màn hình — lắc nhẹ mỗi vài giây để khách chú ý */
.zalo-noi{position:fixed;right:18px;bottom:calc(18px + env(safe-area-inset-bottom));z-index:60;
  display:flex;align-items:center;gap:10px;text-decoration:none}
.zalo-noi .nut{position:relative;width:62px;height:62px;border-radius:50%;background:#0068FF;color:#fff;
  display:grid;place-items:center;box-shadow:0 10px 28px rgba(0,104,255,.45);
  animation:lac 3.2s ease-in-out infinite;transform-origin:50% 60%}
.zalo-noi .nut svg{width:34px;height:34px}
/* hai vòng sóng toả ra quanh nút */
.zalo-noi .nut::before,.zalo-noi .nut::after{content:"";position:absolute;inset:0;border-radius:50%;
  border:2px solid rgba(0,104,255,.55);animation:song-zalo 2.4s ease-out infinite;pointer-events:none}
.zalo-noi .nut::after{animation-delay:1.2s}
/* chấm đỏ báo "đang trực" */
.zalo-noi .cham{position:absolute;top:3px;right:3px;width:14px;height:14px;border-radius:50%;
  background:#FF3B30;border:2px solid #fff}
/* nhãn chữ bên cạnh nút */
.zalo-noi .nhan{background:#fff;color:var(--ink);border:1px solid var(--line);border-radius:12px;
  padding:8px 12px;font-size:14px;line-height:1.3;box-shadow:0 6px 18px rgba(11,59,46,.14);
  white-space:nowrap}
.zalo-noi .nhan b{display:block;color:#0068FF;font-size:15px}
.zalo-noi:hover .nut{animation-play-state:paused;transform:scale(1.06)}

@keyframes lac{
  0%,64%,100%{transform:rotate(0) scale(1)}
  68%{transform:rotate(-16deg) scale(1.08)}
  72%{transform:rotate(14deg)  scale(1.08)}
  76%{transform:rotate(-12deg) scale(1.08)}
  80%{transform:rotate(10deg)  scale(1.06)}
  84%{transform:rotate(-6deg)  scale(1.04)}
  88%{transform:rotate(0)      scale(1)}
}
@keyframes song-zalo{0%{transform:scale(1);opacity:.9}100%{transform:scale(1.75);opacity:0}}

/* Phóng to ảnh (dùng chung app.js) */
.lb{position:fixed;inset:0;background:rgba(6,10,8,.9);z-index:100;display:none;overflow:auto;
  -webkit-overflow-scrolling:touch;padding:48px 12px 24px}
.lb.on{display:block}
.lb img{max-width:none;width:min(900px,100%);margin:0 auto;border-radius:10px}
.lb .x{position:fixed;top:10px;right:14px;color:#fff;font-size:26px;cursor:pointer}
.lb .hint{display:block;text-align:center;color:#9DB8AA;font-size:13px;margin-top:10px}

@media (max-width:820px){.fb-grid{grid-template-columns:1fr 1fr}}
@media (max-width:600px){
  .nav .home{display:none}
  .toggle{width:100%;max-width:360px}
  .toggle button{flex:1;padding:9px 10px;font-size:14px;white-space:nowrap}
  .top h1{font-size:27px}
  .top p{font-size:16px}
  .btn-zalo .chu-dai{display:none}
  .fb-grid{grid-template-columns:1fr}
  .lh-card{padding:22px}
  .zalo-noi{right:14px;bottom:calc(14px + env(safe-area-inset-bottom))}
  .zalo-noi .nut{width:58px;height:58px}
  .zalo-noi .nhan{padding:7px 10px;font-size:13px}
  .zalo-noi .nhan b{font-size:14px}
  /* chừa chỗ cuối trang để nút nổi không che nội dung */
  footer{padding-bottom:96px}
  section{padding:40px 0}
}
@media (max-width:380px){.zalo-noi .nhan{display:none}}
/* Người dùng bật "giảm chuyển động" trong máy thì thôi lắc, chỉ giữ nút đứng yên */
@media (prefers-reduced-motion:reduce){
  .song i,.day.moi,.zalo-noi .nut,.zalo-noi .nut::before,.zalo-noi .nut::after{animation:none}
}