/* =========================================================
   SKIN LAB — style.css
   Thương hiệu mỹ phẩm dược (skincare) Việt: serum, kem dưỡng, chống nắng.
   Phong cách: tối giản kiểu biên tập (editorial minimal) — nhiều khoảng trắng,
   đường kẻ siêu mảnh 1px, chữ nghiêng serif cỡ lớn, nút vuông không bo góc.
   Màu: trắng xương #F7F5F0 + đất sét #C9A08A + ô-liu sẫm #3B4A3F + chữ đen.
   Font: "Cormorant" (italic, tiêu đề) + "Karla" (nội dung) — chưa mẫu nào dùng Karla.
   Bố cục khác các mẫu trước:
     - Dải promo mảnh phía trên → header 3 phần: nav nhỏ trái · WORDMARK GIỮA
       giãn chữ rộng · phải "Quiz da" + giỏ có số
     - Hero BẤT ĐỐI XỨNG 40/60: ảnh cao tràn sát mép trên-trái, khối chữ căn giữa
       dọc, tiêu đề Cormorant nghiêng khổng lồ; bên dưới là DẢI ROUTINE 3 ảnh
       đánh số nối bằng đường kẻ mảnh (Sáng · Tối)
     - Thẻ QUIZ xác định loại da: 5 câu hỏi dạng chip radio trong STEPPER NGANG,
       JS trả kết quả + 3 sản phẩm gợi ý
     - Lưới sản phẩm 4 cột ảnh vuông, rê chuột ĐỔI SANG ẢNH KẾT CẤU (texture)
     - Hoạt chất: ACCORDION NGANG 4 panel nền ô-liu, nở ra khi rê/chạm
     - Trước/sau: thanh trượt range kéo lớp clip-path
     - Bác sĩ da liễu: vòng tròn chữ cái + form đặt lịch mini; tab nhật ký Sáng/Tối
     - Trang sản phẩm: RAIL LỌC TRÁI checkbox + sort; hàng "Bộ combo"
     - Chi tiết: gallery 4 thumb + ảnh kết cấu, BUYBOX DÍNH phải (chip dung tích,
       số lượng, mua kèm, giao định kỳ), bảng hoạt chất, thanh đánh giá 5→1 sao
     - Routine builder: chọn loại da + mục tiêu → JS ghép bảng Sáng/Tối + tổng tiền
   Ảnh: mỗi khối ảnh dùng biến --img trên thẻ HTML (đường dẫn ../images/…).
   ========================================================= */

:root{
  --bone:#F7F5F0;
  --bone-2:#EFEBE3;
  --clay:#C9A08A;
  --clay-soft:#EBD9CE;
  --olive:#3B4A3F;
  --olive-2:#4B5C4F;
  --olive-3:#5C6E60;
  --olive-4:#2E3A31;
  --ink:#141414;
  --muted:#6F6E68;
  --line:rgba(20,20,20,.14);
  --line-soft:rgba(20,20,20,.08);
  --white:#fff;
  --ph:linear-gradient(135deg,#E9E4DB 0%,#DCD5CA 55%,#CFC6B9 100%);
  --ease:cubic-bezier(.4,0,.2,1);
}

*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Karla',system-ui,sans-serif;color:var(--ink);background:var(--bone);font-size:15px;line-height:1.65;-webkit-font-smoothing:antialiased}
h1,h2,h3,.serif{font-family:'Cormorant',Georgia,serif;font-weight:500;line-height:1.05;letter-spacing:-.01em}
h1 em,h2 em,h3 em,.serif em{font-style:italic;font-weight:400}
h4,h5{font-weight:700;letter-spacing:.02em}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
img{max-width:100%;display:block}
svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.4;stroke-linecap:round;stroke-linejoin:round;flex:none}
.ph{background:var(--img,var(--ph)) center/cover no-repeat var(--bone-2)}
.container{width:min(1200px,92%);margin:0 auto}
.muted{color:var(--muted)}
.eyebrow{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);font-weight:500;display:block;margin-bottom:14px}
.eyebrow--clay{color:var(--clay)}
.section{padding:88px 0}
.section--tight{padding:56px 0}
.section--olive{background:var(--olive);color:var(--bone)}
.section--olive .eyebrow{color:var(--clay)}
.section--olive .muted{color:rgba(247,245,240,.65)}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap}
.section__head h2{font-size:clamp(34px,4vw,52px)}
.section__head p{color:var(--muted);max-width:440px;margin-top:8px}
.section__head .more{font-size:12px;letter-spacing:.16em;text-transform:uppercase;border-bottom:1px solid var(--ink);padding-bottom:3px;white-space:nowrap}
.section__head .more:hover{color:var(--clay);border-color:var(--clay)}
.hr{border:0;border-top:1px solid var(--line);margin:0}
.center{text-align:center}
.center .section__head{justify-content:center;flex-direction:column;align-items:center}

/* ---------- Nút ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:14px 26px;font-weight:500;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;border:1px solid var(--ink);background:var(--ink);color:var(--bone);transition:.25s var(--ease);white-space:nowrap}
.btn svg{width:15px;height:15px}
.btn:hover{background:var(--olive);border-color:var(--olive)}
.btn--line{background:transparent;color:var(--ink)}
.btn--line:hover{background:var(--ink);color:var(--bone)}
.btn--clay{background:var(--clay);border-color:var(--clay);color:var(--ink)}
.btn--clay:hover{background:#B88C75;border-color:#B88C75}
.btn--bone{background:var(--bone);border-color:var(--bone);color:var(--ink)}
.btn--bone:hover{background:var(--clay);border-color:var(--clay)}
.btn--ghost-bone{background:transparent;border-color:rgba(247,245,240,.5);color:var(--bone)}
.btn--ghost-bone:hover{background:var(--bone);color:var(--ink);border-color:var(--bone)}
.btn--sm{padding:10px 16px;font-size:11.5px}
.btn--full{width:100%}
.link{font-size:12px;letter-spacing:.14em;text-transform:uppercase;border-bottom:1px solid currentColor;padding-bottom:2px}
.link:hover{color:var(--clay)}

/* ---------- Dải promo + Header ---------- */
.promo{font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--olive);text-align:center;padding:9px 16px;border-bottom:1px solid var(--line-soft)}
.promo i{font-style:normal;margin:0 12px;opacity:.5}
.header{position:sticky;top:0;z-index:60;background:rgba(247,245,240,.92);backdrop-filter:blur(8px);border-bottom:1px solid var(--line-soft)}
.header__in{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;min-height:72px;gap:20px}
.nav{display:flex;gap:28px;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase}
.nav a{padding:6px 0;border-bottom:1px solid transparent}
.nav a:hover,.nav a.is-active{border-color:var(--ink)}
.wordmark{font-family:'Karla',sans-serif;font-weight:700;font-size:20px;letter-spacing:.42em;text-indent:.42em;text-align:center;white-space:nowrap}
.header__acts{display:flex;justify-content:flex-end;align-items:center;gap:22px;font-size:12.5px;letter-spacing:.1em;text-transform:uppercase}
.header__acts a{display:inline-flex;align-items:center;gap:8px}
.header__acts .quiz{border-bottom:1px solid var(--ink);padding-bottom:2px}
.header__acts .quiz:hover{color:var(--clay);border-color:var(--clay)}
.cart sup{background:var(--ink);color:var(--bone);font-size:10px;min-width:18px;height:18px;border-radius:50%;display:inline-grid;place-items:center;font-weight:700;letter-spacing:0;vertical-align:middle}
.burger{display:none;width:40px;height:40px;place-items:center}
.burger svg{width:22px;height:22px}

/* ---------- Hero ---------- */
.hero{display:grid;grid-template-columns:40% 60%;min-height:min(calc(100vh - 116px),820px);background:var(--bone)}
.hero__img{min-height:560px}
.hero__body{display:flex;flex-direction:column;justify-content:center;padding:64px clamp(24px,7vw,110px)}
.hero__body h1{font-size:clamp(46px,6.2vw,92px);font-style:italic;font-weight:400;max-width:12ch}
.hero__meta{font-size:12px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin:26px 0 8px}
.hero__meta i{font-style:normal;margin:0 10px;color:var(--clay)}
.hero__body p{max-width:480px;color:var(--muted);margin-bottom:34px;font-size:16px}
.hero__cta{display:flex;gap:14px;flex-wrap:wrap;align-items:center}
.routine-strip{margin-top:64px;padding-top:32px;border-top:1px solid var(--line)}
.routine-strip__label{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--muted);margin-bottom:22px;display:flex;justify-content:space-between}
.rs{display:grid;grid-template-columns:repeat(3,1fr);position:relative;gap:20px}
.rs::before{content:"";position:absolute;left:44px;right:44px;top:44px;height:1px;background:var(--ink);opacity:.35}
.rs__item{display:flex;flex-direction:column;align-items:center;text-align:center;gap:12px;position:relative}
.rs__thumb{width:88px;height:88px;position:relative;border:1px solid var(--line);background:var(--bone)}
.rs__thumb .ph{position:absolute;inset:6px}
.rs__thumb b{position:absolute;top:-10px;left:-10px;width:24px;height:24px;border-radius:50%;background:var(--ink);color:var(--bone);font-size:11px;display:grid;place-items:center;font-weight:700;z-index:1}
.rs__item small{display:block;color:var(--muted);font-size:12px}
.rs__item span{font-size:13.5px;font-weight:500}

/* ---------- Quiz card ---------- */
.quiz-card{background:var(--white);border:1px solid var(--line);display:grid;grid-template-columns:1.1fr .9fr}
.quiz-card__l{padding:52px}
.quiz-card__r{padding:52px;background:var(--olive);color:var(--bone);display:flex;flex-direction:column;justify-content:center}
.quiz-card__l h2{font-size:clamp(30px,3vw,40px);margin-bottom:22px}
.stepper{display:flex;align-items:center;margin-bottom:30px}
.stepper__dot{width:28px;height:28px;border-radius:50%;border:1px solid var(--line);display:grid;place-items:center;font-size:11px;font-weight:700;color:var(--muted);flex:none;transition:.2s}
.stepper__dot.is-on{background:var(--ink);color:var(--bone);border-color:var(--ink)}
.stepper__dot.is-done{background:var(--clay);border-color:var(--clay);color:var(--ink)}
.stepper__bar{flex:1;height:1px;background:var(--line)}
.qstep{display:none}
.qstep.is-on{display:block}
.qstep h4{font-size:19px;font-weight:500;font-family:'Cormorant',serif;font-size:26px;margin-bottom:16px}
.qstep h4 small{font-family:'Karla',sans-serif;font-size:11px;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:6px}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{position:relative}
.chip input{position:absolute;opacity:0;inset:0;cursor:pointer}
.chip span{display:inline-block;padding:9px 16px;border:1px solid var(--line);font-size:13.5px;background:var(--white);transition:.15s}
.chip input:checked + span{background:var(--ink);color:var(--bone);border-color:var(--ink)}
.chip input:focus-visible + span{outline:2px solid var(--clay);outline-offset:2px}
.qnav{display:flex;justify-content:space-between;align-items:center;margin-top:28px;padding-top:20px;border-top:1px solid var(--line-soft)}
.qnav .muted{font-size:12px}
.qresult{display:none}
.qresult.is-on{display:block}
.qresult h3{font-size:34px;font-style:italic;font-weight:400;margin:6px 0 8px}
.qresult p{color:rgba(247,245,240,.7);font-size:14px}
.qresult__list{margin-top:22px;border-top:1px solid rgba(247,245,240,.2)}
.qresult__list li{list-style:none;display:flex;align-items:center;gap:14px;padding:12px 0;border-bottom:1px solid rgba(247,245,240,.2);font-size:14px}
.qresult__list .ph{width:44px;height:44px;flex:none}
.qresult__list b{display:block;font-weight:500}
.qresult__list small{color:rgba(247,245,240,.6);font-size:12px}
.qresult__list em{margin-left:auto;font-style:normal;font-size:13px;white-space:nowrap}
.qintro h3{font-size:34px;font-style:italic;font-weight:400;margin-bottom:12px}
.qintro p{color:rgba(247,245,240,.7);font-size:14px}
.qintro ul{margin-top:20px;font-size:13px;color:rgba(247,245,240,.8)}
.qintro li{list-style:none;padding:8px 0;border-top:1px solid rgba(247,245,240,.2)}

/* ---------- Sản phẩm ---------- */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:28px 22px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:28px 22px}
.pcard{display:flex;flex-direction:column;gap:10px}
.pcard__img{position:relative;aspect-ratio:1;overflow:hidden;background:var(--bone-2)}
.pcard__img .ph{position:absolute;inset:0;transition:opacity .5s var(--ease),transform .8s var(--ease)}
.pcard__img .ph--tex{opacity:0}
.pcard:hover .ph--tex{opacity:1}
.pcard:hover .ph--main{transform:scale(1.04)}
.pcard__tags{position:absolute;left:10px;top:10px;display:flex;gap:4px;flex-wrap:wrap;z-index:1}
.tag{font-size:10px;letter-spacing:.12em;text-transform:uppercase;padding:4px 8px;background:rgba(247,245,240,.92);color:var(--ink)}
.tag--olive{background:var(--olive);color:var(--bone)}
.tag--clay{background:var(--clay);color:var(--ink)}
.pcard__add{position:absolute;left:10px;right:10px;bottom:10px;background:var(--ink);color:var(--bone);padding:11px;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;text-align:center;transform:translateY(120%);transition:.3s var(--ease);z-index:1}
.pcard:hover .pcard__add{transform:none}
.pcard__body h3{font-family:'Karla',sans-serif;font-size:14.5px;font-weight:500;letter-spacing:0;line-height:1.35}
.pcard__body h3 a:hover{color:var(--clay)}
.pcard__body small{display:block;color:var(--muted);font-size:12px;margin-top:3px}
.pcard__foot{display:flex;justify-content:space-between;align-items:center;margin-top:6px;font-size:13.5px}
.pcard__foot b{font-weight:500}
.stars{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--muted)}
.stars i{font-style:normal;letter-spacing:1px;color:var(--clay);font-size:12px}

/* ---------- Hoạt chất — accordion ngang ---------- */
.hacc{display:flex;height:480px;gap:4px}
.hacc__p{flex:1;position:relative;overflow:hidden;color:var(--bone);cursor:pointer;transition:flex .6s var(--ease);display:flex;flex-direction:column;justify-content:flex-end;padding:28px}
.hacc__p:nth-child(1){background:var(--olive-4)}
.hacc__p:nth-child(2){background:var(--olive)}
.hacc__p:nth-child(3){background:var(--olive-2)}
.hacc__p:nth-child(4){background:var(--olive-3)}
.hacc__p .ph{position:absolute;inset:0;opacity:0;transition:.6s;mix-blend-mode:luminosity}
.hacc__p:hover,.hacc__p.is-open{flex:3.2}
.hacc__p:hover .ph,.hacc__p.is-open .ph{opacity:.18}
.hacc__v{position:absolute;top:28px;left:28px;writing-mode:vertical-rl;transform:rotate(180deg);font-size:11px;letter-spacing:.24em;text-transform:uppercase;color:var(--clay);transition:.3s}
.hacc__p:hover .hacc__v,.hacc__p.is-open .hacc__v{opacity:0}
.hacc__pct{font-family:'Cormorant',serif;font-size:64px;font-style:italic;line-height:1;position:relative}
.hacc__pct,.hacc__name{opacity:0;transition:.4s .1s}
.hacc__p:hover .hacc__pct,.hacc__p.is-open .hacc__pct,.hacc__p:hover .hacc__name,.hacc__p.is-open .hacc__name{opacity:1}
.hacc__body{position:relative;opacity:0;transform:translateY(12px);transition:.5s .15s;max-width:420px}
.hacc__p:hover .hacc__body,.hacc__p.is-open .hacc__body{opacity:1;transform:none}
.hacc__body h3{font-size:30px;margin:6px 0 10px}
.hacc__body p{font-size:14px;color:rgba(247,245,240,.75);line-height:1.6}
.hacc__body ul{display:flex;gap:6px;flex-wrap:wrap;margin-top:14px}
.hacc__body li{list-style:none;font-size:11px;letter-spacing:.12em;text-transform:uppercase;padding:5px 10px;border:1px solid rgba(247,245,240,.35)}
.hacc__name{position:relative;font-size:13px;letter-spacing:.16em;text-transform:uppercase;margin-top:8px}

/* ---------- Trước / sau ---------- */
.ba-wrap{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.ba{position:relative;aspect-ratio:4/5;overflow:hidden;--pos:50%;background:var(--bone-2)}
.ba .ph{position:absolute;inset:0}
.ba .ph--after{clip-path:inset(0 0 0 var(--pos))}
.ba__line{position:absolute;top:0;bottom:0;left:var(--pos);width:1px;background:var(--bone);transform:translateX(-.5px);pointer-events:none}
.ba__line::after{content:"↔";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border-radius:50%;background:var(--bone);color:var(--ink);display:grid;place-items:center;font-size:16px}
.ba input{position:absolute;inset:0;width:100%;height:100%;opacity:0;cursor:ew-resize;margin:0}
.ba__lab{position:absolute;bottom:14px;font-size:10.5px;letter-spacing:.2em;text-transform:uppercase;background:rgba(247,245,240,.9);padding:4px 8px;pointer-events:none}
.ba__lab--l{left:14px}
.ba__lab--r{right:14px}
.ba-text h2{font-size:clamp(34px,3.6vw,50px);margin-bottom:18px}
.ba-text p{color:var(--muted);margin-bottom:18px}
.ba-text .stats{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);margin-top:28px}
.ba-text .stats div{padding:18px 0;border-right:1px solid var(--line);padding-right:16px}
.ba-text .stats div:last-child{border:0}
.ba-text .stats b{display:block;font-family:'Cormorant',serif;font-size:40px;font-weight:500;line-height:1}
.ba-text .stats small{font-size:11.5px;color:var(--muted);letter-spacing:.06em;display:block;margin-top:6px}
.note{font-size:12px;color:var(--muted);border-left:1px solid var(--clay);padding-left:12px;margin-top:18px}

/* ---------- Bác sĩ ---------- */
.doc-wrap{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.doc{display:flex;gap:20px;padding:24px 0;border-top:1px solid var(--line)}
.doc:last-child{border-bottom:1px solid var(--line)}
.initials{width:64px;height:64px;border-radius:50%;background:var(--olive);color:var(--bone);display:grid;place-items:center;font-family:'Cormorant',serif;font-size:26px;font-style:italic;flex:none}
.initials--clay{background:var(--clay);color:var(--ink)}
.initials--lg{width:96px;height:96px;font-size:38px}
.doc h3{font-size:24px;font-weight:500}
.doc small{display:block;color:var(--muted);font-size:12.5px;margin:2px 0 8px}
.doc p{font-size:14px;color:var(--muted)}
.doc__meta{display:flex;gap:16px;margin-top:8px;font-size:12px;letter-spacing:.06em}
.miniform{background:var(--white);border:1px solid var(--line);padding:36px}
.miniform h3{font-size:30px;margin-bottom:6px}
.miniform > p{color:var(--muted);font-size:14px;margin-bottom:22px}

/* ---------- Form chung ---------- */
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:16px}
.field label{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted)}
.field input,.field select,.field textarea{border:0;border-bottom:1px solid var(--line);background:transparent;padding:10px 0;outline:none;transition:.2s;border-radius:0;-webkit-appearance:none;appearance:none}
.field select{background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23141414' stroke-width='1.4'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right center/16px no-repeat;padding-right:24px}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--ink)}
.field textarea{resize:vertical;min-height:100px}
.field--row{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin:0}
.check{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;cursor:pointer}
.check input{width:16px;height:16px;margin-top:3px;accent-color:var(--olive);flex:none}
.radio-row{display:flex;gap:8px;flex-wrap:wrap}
.form__note{font-size:12px;color:var(--muted);margin-top:14px}
.upload{border:1px dashed var(--line);padding:26px;text-align:center;color:var(--muted);font-size:13px;position:relative;background:var(--bone)}
.upload input{position:absolute;inset:0;opacity:0;cursor:pointer;width:100%}
.upload svg{width:26px;height:26px;margin:0 auto 8px;color:var(--olive)}
.upload b{display:block;color:var(--ink);font-weight:500}

/* ---------- Tabs nhật ký ---------- */
.tabs{display:inline-flex;border:1px solid var(--ink)}
.tabs button{padding:10px 26px;font-size:12px;letter-spacing:.16em;text-transform:uppercase}
.tabs button.is-active{background:var(--ink);color:var(--bone)}
.tabpane{display:none}
.tabpane.is-active{display:block}
.steps{border-top:1px solid var(--line);margin-top:28px}
.step{display:grid;grid-template-columns:60px 1fr auto;gap:24px;padding:22px 0;border-bottom:1px solid var(--line);align-items:center}
.step b{font-family:'Cormorant',serif;font-size:36px;font-style:italic;font-weight:400;color:var(--clay);line-height:1}
.step h4{font-size:15.5px;font-weight:500}
.step p{font-size:13.5px;color:var(--muted);margin-top:2px}
.step em{font-style:normal;font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);white-space:nowrap}
.journal{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start}
.journal__img{aspect-ratio:4/5}

/* ---------- Nhận xét ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.quote{padding:40px 32px;border-right:1px solid var(--line)}
.quote:last-child{border-right:0}
.quote p{font-family:'Cormorant',serif;font-size:24px;font-style:italic;line-height:1.35;margin-bottom:22px}
.quote .who{font-size:13px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.quote .who b{font-weight:500}
.quote .who .tag{background:var(--bone-2)}
.quote .stars{margin-bottom:14px}

/* ---------- Instagram strip ---------- */
.ig{display:grid;grid-template-columns:repeat(6,1fr);gap:6px}
.ig .ph{aspect-ratio:1;position:relative;overflow:hidden}
.ig .ph::after{content:"";position:absolute;inset:0;background:var(--olive);opacity:0;transition:.3s}
.ig .ph:hover::after{opacity:.35}
.ig-head{display:flex;justify-content:space-between;align-items:baseline;margin-bottom:18px;font-size:12.5px;letter-spacing:.14em;text-transform:uppercase}

/* ---------- Newsletter ---------- */
.news{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:64px 0;border-top:1px solid var(--line)}
.news h2{font-size:clamp(32px,3.4vw,46px)}
.news p{color:var(--muted);margin-top:10px;max-width:420px}
.news form{display:flex;gap:0;border-bottom:1px solid var(--ink);align-items:center}
.news input{flex:1;border:0;background:transparent;padding:14px 0;outline:none;min-width:0}
.news button{padding:14px 0 14px 16px;font-size:12px;letter-spacing:.16em;text-transform:uppercase}
.news button:hover{color:var(--clay)}
.news label{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}
.sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0)}

/* ---------- Footer ---------- */
.footer{background:var(--olive);color:var(--bone);padding:72px 0 28px}
.footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer .wordmark{text-align:left;text-indent:0;font-size:22px;margin-bottom:14px}
.footer p{font-size:13.5px;color:rgba(247,245,240,.65);max-width:320px}
.footer h4{font-size:11px;letter-spacing:.22em;text-transform:uppercase;color:var(--clay);margin-bottom:16px}
.footer ul{list-style:none}
.footer li{font-size:14px;padding:5px 0;color:rgba(247,245,240,.85)}
.footer li a:hover{color:var(--clay)}
.footer__bot{margin-top:56px;padding-top:22px;border-top:1px solid rgba(247,245,240,.2);display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:rgba(247,245,240,.55)}
.footer__bot span i{font-style:normal;margin:0 8px}

/* ---------- Trang con: tiêu đề ---------- */
.page-head{padding:56px 0 32px;border-bottom:1px solid var(--line)}
.page-head h1{font-size:clamp(40px,5vw,68px);font-style:italic;font-weight:400}
.page-head p{color:var(--muted);max-width:520px;margin-top:10px}
.crumb{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);margin-bottom:14px}
.crumb i{font-style:normal;margin:0 8px}

/* ---------- Trang sản phẩm: rail lọc ---------- */
.shop{display:grid;grid-template-columns:240px 1fr;gap:56px;padding:48px 0 88px}
.rail{position:sticky;top:96px}
.rail__group{padding:20px 0;border-bottom:1px solid var(--line)}
.rail__group:first-child{padding-top:0}
.rail__group h4{font-size:11px;letter-spacing:.2em;text-transform:uppercase;margin-bottom:12px;display:flex;justify-content:space-between}
.rail__group h4 span{color:var(--muted);font-weight:400;letter-spacing:0;text-transform:none}
.rail .check{padding:5px 0;font-size:13.5px}
.rail .check span{color:var(--muted);margin-left:auto;font-size:12px}
.rail__reset{margin-top:18px;font-size:12px;letter-spacing:.14em;text-transform:uppercase;border-bottom:1px solid currentColor}
.toolbar{display:flex;justify-content:space-between;align-items:center;gap:16px;margin-bottom:28px;flex-wrap:wrap}
.toolbar .muted{font-size:13px}
.toolbar label{font-size:11px;letter-spacing:.16em;text-transform:uppercase;color:var(--muted);margin-right:10px}
.toolbar select{border:0;border-bottom:1px solid var(--ink);background:transparent;padding:6px 22px 6px 0;outline:none;-webkit-appearance:none;appearance:none;background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23141414' stroke-width='1.4'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E") right center/14px no-repeat}
.active-chips{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:22px}
.active-chips span{font-size:12px;padding:5px 10px;border:1px solid var(--line);display:inline-flex;gap:8px;align-items:center}
.combo{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.combo__c{background:var(--white);border:1px solid var(--line);padding:22px;display:flex;flex-direction:column;gap:14px}
.combo__c .thumbs{display:flex}
.combo__c .thumbs .ph{width:64px;height:64px;border:2px solid var(--white);margin-left:-14px;background-color:var(--bone-2)}
.combo__c .thumbs .ph:first-child{margin-left:0}
.combo__c h3{font-size:26px}
.combo__c p{font-size:13.5px;color:var(--muted)}
.combo__c .price{display:flex;align-items:baseline;gap:10px;margin-top:auto}
.combo__c .price b{font-weight:500;font-size:17px}
.combo__c .price s{color:var(--muted);font-size:13px}
.combo__c .price em{font-style:normal;font-size:11px;letter-spacing:.12em;text-transform:uppercase;background:var(--clay);padding:3px 7px}
.pager{display:flex;justify-content:center;gap:6px;margin-top:48px}
.pager a{width:38px;height:38px;display:grid;place-items:center;border:1px solid var(--line);font-size:13px}
.pager a.is-active,.pager a:hover{background:var(--ink);color:var(--bone);border-color:var(--ink)}

/* ---------- Chi tiết sản phẩm ---------- */
.pdp{display:grid;grid-template-columns:1.15fr .85fr;gap:64px;padding:40px 0 88px;align-items:start}
.gallery{display:grid;grid-template-columns:80px 1fr;gap:14px}
.gallery__thumbs{display:flex;flex-direction:column;gap:10px}
.gallery__thumbs button{aspect-ratio:1;border:1px solid var(--line);padding:3px;background:var(--white)}
.gallery__thumbs button.is-active{border-color:var(--ink)}
.gallery__thumbs .ph{width:100%;height:100%}
.gallery__main{aspect-ratio:1;background:var(--bone-2);position:relative}
.gallery__main .ph{position:absolute;inset:0;opacity:0;transition:.4s}
.gallery__main .ph.is-active{opacity:1}
.gallery__main .tag{position:absolute;left:14px;top:14px;z-index:1}
.buybox{position:sticky;top:96px}
.buybox .crumb{margin-bottom:10px}
.buybox h1{font-size:clamp(32px,3.2vw,44px);font-weight:500}
.buybox h1 em{display:block;font-size:.6em;color:var(--muted);margin-top:4px}
.buybox .stars{margin:14px 0}
.buybox .stars a{border-bottom:1px solid currentColor}
.price-row{display:flex;align-items:baseline;gap:12px;margin:10px 0 24px;padding-bottom:22px;border-bottom:1px solid var(--line)}
.price-row b{font-size:26px;font-weight:500}
.price-row small{color:var(--muted);font-size:12.5px}
.opt{margin-bottom:20px}
.opt > label,.opt > .lab{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);display:block;margin-bottom:10px}
.chip--size span{padding:10px 18px;min-width:70px;text-align:center}
.chip--size small{display:block;font-size:10.5px;color:var(--muted);letter-spacing:0}
.chip input:checked + span small{color:rgba(247,245,240,.6)}
.qty{display:inline-flex;border:1px solid var(--ink);align-items:center}
.qty button{width:40px;height:44px;font-size:18px}
.qty input{width:52px;text-align:center;border:0;background:transparent;height:44px;outline:none;-moz-appearance:textfield}
.qty input::-webkit-inner-spin-button,.qty input::-webkit-outer-spin-button{-webkit-appearance:none}
.buy-row{display:flex;gap:12px;align-items:stretch;margin:22px 0}
.buy-row .btn{flex:1}
.upsell{border:1px solid var(--line);padding:14px;display:flex;gap:12px;align-items:center;background:var(--white);margin-bottom:12px}
.upsell input{accent-color:var(--olive);width:16px;height:16px;flex:none}
.upsell .ph{width:48px;height:48px;flex:none}
.upsell b{font-weight:500;font-size:13.5px;display:block}
.upsell small{color:var(--muted);font-size:12px}
.upsell em{margin-left:auto;font-style:normal;font-size:13px;white-space:nowrap}
.upsell em s{color:var(--muted);margin-right:6px;font-size:11.5px}
.subscribe{border:1px solid var(--olive);background:rgba(59,74,63,.05);padding:14px 16px;font-size:13.5px}
.subscribe .check{margin-bottom:6px}
.subscribe .check b{font-weight:500}
.subscribe .check small{display:block;color:var(--muted);font-size:12px}
.subscribe select{border:0;border-bottom:1px solid var(--ink);background:transparent;padding:4px 0;outline:none;margin-left:26px}
.assure{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px;font-size:11.5px;color:var(--muted);letter-spacing:.04em}
.assure div{display:flex;gap:8px;align-items:flex-start}
.assure svg{color:var(--olive);width:16px;height:16px}
.pdp-sec{padding:64px 0;border-top:1px solid var(--line)}
.pdp-sec h2{font-size:clamp(30px,3vw,42px);margin-bottom:28px}
.tbl{width:100%;border-collapse:collapse;font-size:14px}
.tbl th{text-align:left;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:500;padding:12px 0;border-bottom:1px solid var(--ink)}
.tbl td{padding:16px 0;border-bottom:1px solid var(--line);vertical-align:top}
.tbl td:first-child{font-weight:500}
.tbl td.pct{font-family:'Cormorant',serif;font-size:24px;font-style:italic;color:var(--olive)}
.tbl td + td{padding-left:20px}
.tbl th + th{padding-left:20px}
.how{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.how div{padding:32px 28px;border-right:1px solid var(--line)}
.how div:last-child{border:0}
.how svg{width:32px;height:32px;color:var(--olive);margin-bottom:16px}
.how b{display:block;font-family:'Cormorant',serif;font-size:14px;font-family:'Karla',sans-serif;letter-spacing:.2em;text-transform:uppercase;color:var(--muted);font-weight:500;margin-bottom:8px;font-size:11px}
.how h3{font-size:24px;margin-bottom:8px}
.how p{font-size:13.5px;color:var(--muted)}
.fit{display:flex;gap:8px;flex-wrap:wrap}
.fit span{padding:9px 16px;border:1px solid var(--line);font-size:13.5px}
.fit span.no{color:var(--muted);text-decoration:line-through}
.reviews{display:grid;grid-template-columns:320px 1fr;gap:64px}
.rating-big{display:flex;align-items:baseline;gap:10px}
.rating-big b{font-family:'Cormorant',serif;font-size:72px;font-weight:500;line-height:1}
.rating-big small{color:var(--muted)}
.bars{margin-top:18px}
.bars div{display:grid;grid-template-columns:36px 1fr 36px;gap:10px;align-items:center;font-size:12px;color:var(--muted);padding:4px 0}
.bars i{height:4px;background:var(--bone-2);display:block;position:relative}
.bars i::after{content:"";position:absolute;left:0;top:0;bottom:0;width:var(--w);background:var(--olive)}
.review{padding:24px 0;border-top:1px solid var(--line)}
.review:last-child{border-bottom:1px solid var(--line)}
.review__head{display:flex;justify-content:space-between;align-items:center;gap:12px;margin-bottom:8px;flex-wrap:wrap}
.review__head b{font-weight:500}
.review__head .tag{background:var(--bone-2)}
.review__head time{font-size:12px;color:var(--muted)}
.review p{font-size:14px;color:#3a3a36}
.review small{display:block;color:var(--muted);font-size:12px;margin-top:8px}

/* ---------- Routine builder ---------- */
.builder{display:grid;grid-template-columns:.8fr 1.2fr;gap:64px;align-items:start;padding:48px 0 0}
.builder__ctrl{background:var(--white);border:1px solid var(--line);padding:32px;position:sticky;top:96px}
.builder__ctrl h3{font-size:28px;margin-bottom:18px}
.rtable{width:100%;border-collapse:collapse;font-size:14px}
.rtable th{text-align:left;font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);font-weight:500;padding:10px 0;border-bottom:1px solid var(--ink)}
.rtable td{padding:14px 0;border-bottom:1px solid var(--line);vertical-align:middle}
.rtable td + td,.rtable th + th{padding-left:16px}
.rtable .ph{width:44px;height:44px}
.rtable td b{font-weight:500;display:block}
.rtable td small{color:var(--muted);font-size:12px}
.rtable td:last-child,.rtable th:last-child{text-align:right;white-space:nowrap}
.rtable .when{font-family:'Cormorant',serif;font-style:italic;font-size:22px;color:var(--olive)}
.rtotal{display:flex;justify-content:space-between;align-items:center;padding:20px 0;border-bottom:1px solid var(--ink);margin-top:0}
.rtotal b{font-size:22px;font-weight:500}
.rtotal small{color:var(--muted);font-size:12.5px;display:block}
.rblock{margin-bottom:36px}
.rblock h3{font-size:14px;font-family:'Karla',sans-serif;letter-spacing:.2em;text-transform:uppercase;font-weight:500;color:var(--muted);margin-bottom:10px;display:flex;align-items:center;gap:12px}
.rblock h3::after{content:"";flex:1;height:1px;background:var(--line)}
.presets{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.preset{border:1px solid var(--line);background:var(--white);display:flex;flex-direction:column}
.preset .ph{aspect-ratio:16/10}
.preset__b{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.preset__b h3{font-size:28px}
.preset__b p{font-size:13.5px;color:var(--muted)}
.preset__b ul{font-size:13px;color:#3a3a36;list-style:none;border-top:1px solid var(--line-soft)}
.preset__b li{padding:7px 0;border-bottom:1px solid var(--line-soft);display:flex;justify-content:space-between;gap:8px}
.preset__b li span{color:var(--muted)}
.preset__foot{display:flex;justify-content:space-between;align-items:center;margin-top:auto;padding-top:12px}
.preset__foot b{font-weight:500;font-size:17px}

/* ---------- Bác sĩ trang ---------- */
.doc-cards{display:grid;grid-template-columns:1fr 1fr;gap:22px}
.doc-card{background:var(--white);border:1px solid var(--line);padding:36px;display:grid;grid-template-columns:auto 1fr;gap:24px;align-items:start}
.doc-card h3{font-size:30px}
.doc-card .role{color:var(--muted);font-size:13px;margin:2px 0 12px;display:block}
.doc-card p{font-size:14px;color:#3a3a36}
.doc-card ul{list-style:none;margin-top:14px;font-size:13px;border-top:1px solid var(--line-soft)}
.doc-card li{padding:7px 0;border-bottom:1px solid var(--line-soft);display:flex;justify-content:space-between;gap:12px}
.doc-card li span{color:var(--muted)}
.doc-card .btn{margin-top:18px}
.ways{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.way{padding:36px 28px;border-right:1px solid var(--line)}
.way:last-child{border:0}
.way b.n{font-family:'Cormorant',serif;font-size:44px;font-style:italic;font-weight:400;color:var(--clay);display:block;line-height:1;margin-bottom:14px}
.way h3{font-size:26px;margin-bottom:8px}
.way p{font-size:14px;color:var(--muted)}
.way .price{margin-top:14px;font-size:13px}
.way .price b{font-weight:500;font-size:16px}
.consult{display:grid;grid-template-columns:1.1fr .9fr;gap:64px;align-items:start}
.consult__form{background:var(--white);border:1px solid var(--line);padding:40px}
.consult__form h3{font-size:30px;margin-bottom:6px}
.consult__form > p{color:var(--muted);font-size:14px;margin-bottom:24px}
.slots{display:grid;grid-template-columns:repeat(4,1fr);gap:8px}
.slots .chip span{display:block;text-align:center;padding:9px 6px;font-size:13px}
.faq details{border-bottom:1px solid var(--line);padding:16px 0}
.faq details:first-of-type{border-top:1px solid var(--line)}
.faq summary{cursor:pointer;font-weight:500;font-size:15px;list-style:none;display:flex;justify-content:space-between;gap:12px}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-family:'Cormorant',serif;font-size:24px;line-height:1;color:var(--clay)}
.faq details[open] summary::after{content:"−"}
.faq details p{font-size:14px;color:var(--muted);margin-top:10px;max-width:520px}

/* ---------- Liên hệ ---------- */
.contact{display:grid;grid-template-columns:.9fr 1.1fr;gap:64px;align-items:start;padding:48px 0 88px}
.cinfo dl{border-top:1px solid var(--line)}
.cinfo div{display:grid;grid-template-columns:130px 1fr;gap:16px;padding:16px 0;border-bottom:1px solid var(--line)}
.cinfo dt{font-size:11px;letter-spacing:.18em;text-transform:uppercase;color:var(--muted);padding-top:3px}
.cinfo dd{font-size:14.5px}
.cinfo dd small{display:block;color:var(--muted);font-size:12.5px}
.map{aspect-ratio:16/9;background:var(--bone-2);position:relative;overflow:hidden;margin-top:28px;border:1px solid var(--line)}
.map::before{content:"";position:absolute;inset:0;background-image:linear-gradient(var(--line-soft) 1px,transparent 1px),linear-gradient(90deg,var(--line-soft) 1px,transparent 1px);background-size:40px 40px}
.map i{position:absolute;left:50%;top:50%;transform:translate(-50%,-50%);width:14px;height:14px;border-radius:50%;background:var(--clay);box-shadow:0 0 0 8px rgba(201,160,138,.25)}
.map span{position:absolute;left:50%;top:calc(50% + 18px);transform:translateX(-50%);font-size:11px;letter-spacing:.14em;text-transform:uppercase;background:var(--bone);padding:4px 8px}
.showrooms{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.showroom{border-top:1px solid var(--ink);padding-top:18px}
.showroom h3{font-size:26px}
.showroom p{font-size:14px;color:var(--muted);margin-top:6px}
.showroom .ph{aspect-ratio:4/3;margin-top:16px}

/* ---------- Responsive ---------- */
@media (max-width:1100px){
  .hero{grid-template-columns:42% 58%}
  .hero__body{padding:48px 40px}
  .grid-4{grid-template-columns:repeat(3,1fr)}
  .hacc{height:420px}
  .pdp{gap:40px}
  .shop{grid-template-columns:210px 1fr;gap:36px}
  .reviews{grid-template-columns:260px 1fr;gap:40px}
  .builder{gap:36px}
}
@media (max-width:980px){
  .header__in{grid-template-columns:auto 1fr auto;min-height:62px}
  .wordmark{font-size:17px}
  .nav{display:none}
  #nav.is-open{display:flex;position:absolute;left:0;right:0;top:100%;background:var(--bone);border-bottom:1px solid var(--line);flex-direction:column;gap:0;padding:12px 4%}
  #nav.is-open a{padding:12px 0;border-bottom:1px solid var(--line-soft)}
  .burger{display:grid;order:-1}
  .header__acts{gap:14px}
  .header__acts .quiz{display:none}
  .hero{grid-template-columns:1fr;min-height:0}
  .hero__img{min-height:0;aspect-ratio:4/3}
  .hero__body{padding:44px 4% 56px}
  .quiz-card{grid-template-columns:1fr}
  .quiz-card__l,.quiz-card__r{padding:32px}
  .ba-wrap,.doc-wrap,.journal,.news,.reviews,.consult,.contact,.builder,.pdp{grid-template-columns:1fr;gap:36px}
  .hacc{flex-direction:column;height:auto}
  .hacc__p{min-height:110px;flex:none;padding:22px}
  .hacc__p:hover,.hacc__p.is-open{flex:none}
  .hacc__p:not(.is-open) .hacc__body{display:none}
  .hacc__v{writing-mode:horizontal-tb;transform:none;top:22px;left:22px}
  .hacc__body{max-width:none}
  .hacc__pct{font-size:44px}
  .quotes{grid-template-columns:1fr}
  .quote{border-right:0;border-bottom:1px solid var(--line)}
  .quote:last-child{border-bottom:0}
  .ig{grid-template-columns:repeat(3,1fr)}
  .footer__grid{grid-template-columns:1fr 1fr}
  .shop{grid-template-columns:1fr}
  .rail{position:static;display:grid;grid-template-columns:1fr 1fr;gap:0 24px}
  .rail__reset{grid-column:1/-1}
  .combo,.presets,.showrooms{grid-template-columns:1fr}
  .buybox,.builder__ctrl{position:static}
  .how,.ways{grid-template-columns:1fr}
  .how div,.way{border-right:0;border-bottom:1px solid var(--line)}
  .how div:last-child,.way:last-child{border-bottom:0}
  .doc-cards{grid-template-columns:1fr}
  .journal__img{aspect-ratio:16/9}
  .section{padding:64px 0}
}
@media (max-width:640px){
  body{font-size:14.5px}
  .promo{font-size:10px;letter-spacing:.08em;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .promo i{margin:0 6px}
  .wordmark{letter-spacing:.3em;text-indent:.3em;font-size:15px}
  .header__acts{font-size:11px}
  .hero__body h1{font-size:44px}
  .rs{gap:10px}
  .rs::before{left:30px;right:30px;top:32px}
  .rs__thumb{width:64px;height:64px}
  .rs__item span{font-size:12px}
  .grid-4,.grid-3{grid-template-columns:repeat(2,1fr);gap:22px 12px}
  .pcard__add{transform:none;position:static;margin-top:0;padding:9px}
  .quiz-card__l,.quiz-card__r{padding:24px}
  .stepper__dot{width:24px;height:24px;font-size:10px}
  .step{grid-template-columns:44px 1fr;gap:14px}
  .step em{grid-column:2}
  .step b{font-size:28px}
  .ba-text .stats{grid-template-columns:1fr}
  .ba-text .stats div{border-right:0;border-bottom:1px solid var(--line);padding:12px 0}
  .ig{grid-template-columns:repeat(2,1fr)}
  .footer__grid{grid-template-columns:1fr;gap:28px}
  .footer p{max-width:none}
  .rail{grid-template-columns:1fr}
  .field--row{grid-template-columns:1fr}
  .gallery{grid-template-columns:1fr}
  .gallery__thumbs{flex-direction:row}
  .gallery__thumbs button{width:64px}
  .slots{grid-template-columns:repeat(3,1fr)}
  .assure{grid-template-columns:1fr}
  .buy-row{flex-direction:column}
  .rtable td small{display:none}
  .cinfo div{grid-template-columns:1fr;gap:4px}
  .doc-card{grid-template-columns:1fr;padding:24px}
  .miniform,.consult__form,.builder__ctrl{padding:24px}
  .toolbar{align-items:flex-start}
  .section{padding:48px 0}
  .section__head{margin-bottom:28px}
}