/* ============================================================
   ZenOTea — Trang phẩm và trang đặt mua
   Dùng chung bộ token với landing. Không định nghĩa màu mới.
   ============================================================ */

:root{
  --kim-sang:#E5CEAA; --kim-giua:#C5A980; --kim-toi:#9E7F58; --kim-sau:#7E6440;
  --den:#0E211A; --den2:#12291F; --rung:#1E3A2F; --sau:#0A1913;
  --giay:#EFE9DC; --reu:#6B7A6F; --la:#9DB8A8;
  --son:#A63D2F; --luc:#7FA88C;
  --kim:linear-gradient(178deg,
    #B89C79 0%,#C2A988 14%,#D0B591 24%,#E5CEAA 33%,
    #D5B990 42%,#BA996A 50%,#9E7F58 59%,#A38264 70%,#C4A882 100%);
  --co:'Charmonman','Segoe Script',cursive;
  --title:'Noto Sans','Segoe UI',system-ui,sans-serif;
  --serif:'Cormorant Garamond',Georgia,'Times New Roman',serif;
  --sans:'Inter','Segoe UI',system-ui,-apple-system,sans-serif;
}

*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  background:var(--den);color:var(--giay);font-family:var(--sans);
  font-size:17px;line-height:1.8;-webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  font-variant-numeric:lining-nums tabular-nums;
  font-feature-settings:'lnum' 1,'tnum' 1;
}
p,li{text-wrap:pretty}
a{color:inherit}

.b{max-width:1240px;margin:0 auto;padding:0 clamp(24px,5vw,72px)}

/* ── thanh điều hướng ── */
nav{
  position:sticky;top:0;z-index:20;height:72px;
  display:flex;align-items:center;gap:22px;
  background:rgba(14,33,26,.93);backdrop-filter:blur(11px);
  border-bottom:1px solid rgba(201,162,75,.16);
  padding:0 clamp(20px,5vw,72px);
}
nav img{height:34px;width:auto}
nav .lui{
  margin-left:auto;display:flex;align-items:center;gap:20px;
  font-size:12px;letter-spacing:.16em;text-transform:uppercase;
}
nav .lui a{color:var(--la);text-decoration:none;transition:color .25s}
nav .lui a:hover{color:var(--kim-sang)}

/* ── tiêu đề ── */
h1{
  font-family:var(--title);font-weight:600;
  font-size:clamp(30px,4vw,50px);line-height:1.24;letter-spacing:-.012em;
  background-image:var(--kim);-webkit-background-clip:text;background-clip:text;
  color:transparent;
  /* dấu tiếng Việt tràn ngoài hộp khi tô gradient — nới rồi kéo lại */
  padding:.2em 0 .22em;margin:-.2em 0 0;
}
h2{
  font-family:var(--co);font-weight:700;
  font-size:clamp(27px,3vw,38px);line-height:1.42;
  background-image:var(--kim);-webkit-background-clip:text;background-clip:text;
  color:transparent;padding:.34em 0 .32em;margin:-.34em 0 4px;
}
h3{font-family:var(--title);font-size:17px;font-weight:600;color:var(--kim-sang);letter-spacing:-.005em}

.nhan{
  font-size:11px;letter-spacing:.32em;text-transform:uppercase;
  color:var(--kim-giua);font-weight:500;
}
.lead{font-size:clamp(16px,1.7vw,19px);line-height:1.85;color:#DCD6C6;max-width:66ch}

/* ── phần đầu trang phẩm ── */
.dau{padding:clamp(46px,6vw,80px) 0 clamp(34px,4vw,52px)}
.dau .gia-hang{
  display:flex;align-items:baseline;gap:14px;flex-wrap:wrap;
  margin:22px 0 6px;
}
.dau .gia{font-family:var(--serif);font-size:clamp(32px,4vw,46px);color:var(--kim-sang);line-height:1}
.dau .dv{font-size:13.5px;color:var(--reu);letter-spacing:.03em}

/* ── bảng thông số ── */
.thong-so{
  display:grid;grid-template-columns:repeat(auto-fit,minmax(215px,1fr));
  gap:1px;background:rgba(201,162,75,.14);
  border-top:1px solid rgba(201,162,75,.14);
  border-bottom:1px solid rgba(201,162,75,.14);
  margin:clamp(30px,4vw,46px) 0;
}
.thong-so .o{background:var(--den2);padding:22px 20px}
.thong-so dt{
  font-size:10.5px;letter-spacing:.22em;text-transform:uppercase;
  color:var(--kim-toi);margin-bottom:8px;
}
.thong-so dd{font-size:15.5px;line-height:1.65;color:var(--giay)}

/* ── khối nội dung ── */
.khoi{padding:clamp(30px,4vw,52px) 0;border-top:1px solid rgba(201,162,75,.12)}
.khoi p+p{margin-top:18px}
.doi{display:grid;grid-template-columns:repeat(auto-fit,minmax(290px,1fr));gap:clamp(24px,3vw,44px)}

/* ── nút ── */
.nut-hang{display:flex;gap:14px;flex-wrap:wrap;margin-top:30px}
.nut{
  display:inline-block;padding:16px 32px;
  font-size:12px;letter-spacing:.2em;text-transform:uppercase;font-weight:500;
  text-decoration:none;border:1px solid var(--kim-toi);color:var(--kim-sang);
  transition:background .28s,color .28s,border-color .28s;cursor:pointer;
  background:transparent;font-family:var(--sans);
}
.nut:hover{border-color:var(--kim-sang);background:rgba(201,162,75,.09)}
.nut.dac{background-image:var(--kim);color:#231B0E;border-color:transparent;font-weight:600}
.nut.dac:hover{filter:brightness(1.08)}
.nut:disabled{opacity:.45;cursor:not-allowed}

/* ── ghi chú pháp lý ── */
.phap-ly{
  border-left:2px solid var(--kim-toi);padding:14px 0 14px 18px;
  font-size:13.5px;line-height:1.8;color:var(--reu);margin-top:26px;max-width:70ch;
}
.canh{border-left-color:var(--son)}

/* ── biểu mẫu đặt mua ── */
.form-hang{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
label{display:block;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--kim-giua);margin-bottom:8px}
input,select,textarea{
  width:100%;padding:13px 15px;font-family:var(--sans);font-size:15.5px;
  background:var(--sau);color:var(--giay);
  border:1px solid rgba(201,162,75,.26);border-radius:7px;
  transition:border-color .25s,box-shadow .25s;
}
input:focus,select:focus,textarea:focus{
  outline:none;border-color:var(--kim-giua);box-shadow:0 0 0 3px rgba(201,162,75,.14);
}
select option{background:var(--den2);color:var(--giay)}
textarea{resize:vertical;min-height:88px}
.o-nhap{margin-bottom:20px}

/* ── tổng tiền ── */
.tong{
  background:var(--den2);border:1px solid rgba(201,162,75,.2);border-radius:11px;
  padding:24px 26px;margin-top:8px;
}
.tong .dong{display:flex;justify-content:space-between;gap:16px;padding:9px 0;font-size:15.5px}
.tong .dong.cai{
  border-top:1px solid rgba(201,162,75,.2);margin-top:8px;padding-top:16px;
  font-family:var(--serif);font-size:26px;color:var(--kim-sang);
}
.tong .dong span:first-child{color:var(--reu)}
.tong .dong.cai span:first-child{color:var(--giay);font-family:var(--sans);font-size:15px}

/* ── cách thanh toán ── */
.cach{display:grid;gap:12px;margin-top:8px}
.cach label{
  display:flex;align-items:flex-start;gap:13px;cursor:pointer;
  background:var(--den2);border:1px solid rgba(201,162,75,.2);border-radius:9px;
  padding:16px 18px;margin:0;text-transform:none;letter-spacing:normal;
  font-size:15.5px;color:var(--giay);transition:border-color .25s,background .25s;
}
.cach label:hover{border-color:var(--kim-giua)}
.cach input[type=radio]{width:auto;margin-top:5px;accent-color:var(--kim-giua)}
.cach .ten-cach{font-weight:600;color:var(--kim-sang);display:block}
.cach .mo-cach{font-size:13.5px;color:var(--reu);line-height:1.7;display:block;margin-top:3px}
.cach .chua{
  font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--kim-toi);border:1px solid var(--kim-toi);border-radius:999px;
  padding:2px 9px;margin-left:8px;white-space:nowrap;
}

/* ── chân trang ── */
footer{
  border-top:1px solid rgba(201,162,75,.16);
  padding:44px 0 56px;margin-top:clamp(40px,5vw,72px);
}
footer img{height:44px;width:auto;opacity:.85;margin-bottom:16px}
footer p{font-size:13.5px;color:var(--reu);line-height:1.85;max-width:74ch}

@media (max-width:600px){
  nav .lui{gap:14px;font-size:11px}
  .nut{padding:14px 24px}
}