/* =========================================================
   CanaNest — Stylesheet
   Thiệp cưới & ấn phẩm hôn nhân trực tuyến

   Design tokens:
   - Ivory  #FAF6EE   nền chính
   - Paper  #F1E9D8   nền phụ / khối nội dung
   - Ink    #2B2420   chữ chính (đen ấm)
   - Wine   #6B2534   nhấn chính — gợi rượu tiệc cưới Cana
   - Gold   #A97C3D   nhấn phụ — viền, chi tiết, hover
   - Sage   #7C8A6E   nhấn thứ ba — thẻ, nhãn
   - Line   #E3D6BC   viền mảnh
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Cormorant+Garamond:ital,wght@0,400;0,500;0,600;1,400&family=Work+Sans:wght@300;400;500;600&display=swap');

:root{
  --ivory:#F5FAFF;
  --paper:#DDEEFF;
  --paper-deep:#C7DEF2;
  --ink:#304860;
  --ink-soft:#55738F;
  --wine:#304860;
  --wine-deep:#22364A;
  --gold:#7DA7D9;
  --gold-soft:#A9C7E8;
  --sage:#3F6C99;
  --highlight:#FFF7CC;
  --line:#CFE2F3;
  --white:#FFFFFF;

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Work Sans', -apple-system, sans-serif;

  --container: 1180px;
  --radius: 2px;
}

*,*::before,*::after{ box-sizing:border-box; }
html{ scroll-behavior:smooth; }
body{
  margin:0;
  background:var(--ivory);
  color:var(--ink);
  font-family:var(--font-body);
  font-weight:400;
  font-size:16px;
  line-height:1.6;
  -webkit-font-smoothing:antialiased;
}
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
ul{ margin:0; padding:0; list-style:none; }
button{ font-family:inherit; cursor:pointer; }
input,textarea,select{ font-family:inherit; font-size:1rem; }

h1,h2,h3,h4{
  font-family:var(--font-display);
  font-weight:500;
  line-height:1.15;
  margin:0 0 .5em;
  color:var(--ink);
}
h1{ font-size:clamp(2.4rem,5vw,4.2rem); font-weight:500; }
h2{ font-size:clamp(1.9rem,3.4vw,2.7rem); }
h3{ font-size:1.4rem; }
p{ margin:0 0 1em; color:var(--ink-soft); max-width:62ch; }

.container{ max-width:var(--container); margin:0 auto; padding:0 28px; }
.section{ padding:88px 0; }
.section--tight{ padding:56px 0; }
.section--paper{ background:var(--paper); }

.kicker{
  display:inline-block;
  font-family:var(--font-display);
  font-style:italic;
  font-size:1.15rem;
  color:var(--sage);
  margin-bottom:.4em;
}

.hairline{
  border:none;
  border-top:1px solid var(--line);
  margin:0;
}

.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:14px 32px; /* tỉ lệ ngang:dọc ~2.3x theo chuẩn UX */
  border:1px solid var(--ink);
  border-radius:var(--radius);
  font-size:.92rem;
  letter-spacing:.02em;
  background:transparent;
  color:var(--ink);
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.btn:hover{ background:var(--ink); color:var(--ivory); }
.btn-primary{ background:var(--wine); border-color:var(--wine); color:var(--white); }
.btn-primary:hover{ background:var(--wine-deep); border-color:var(--wine-deep); color:var(--white); }
.btn-ghost{ border-color:var(--white); color:var(--white); }
.btn-ghost:hover{ background:var(--white); color:var(--ink); }
.btn-small{ padding:10px 23px; font-size:.85rem; }
.btn-block{ width:100%; justify-content:center; }

/* ---------- Header ---------- */
.site-header{
  position:sticky; top:0; z-index:50;
  background:var(--ivory);
  border-bottom:1px solid var(--line);
}
.site-header__inner{
  display:flex; align-items:center; justify-content:space-between;
  padding:20px 28px;
  max-width:var(--container); margin:0 auto;
}
.logo{
  font-family:var(--font-display);
  font-size:1.6rem;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink);
}
.logo em{ color:var(--sage); font-style:normal; }
.nav{ display:flex; align-items:center; gap:36px; }
.nav a{
  font-size:.93rem;
  color:var(--ink-soft);
  position:relative;
  padding:4px 0;
}
.nav a:hover, .nav a.active{ color:var(--ink); }
.nav a.active::after{
  content:''; position:absolute; left:0; right:0; bottom:-2px;
  height:1px; background:var(--gold);
}
.nav-cta{
  border:1px solid var(--ink); padding:10px 24px; border-radius:var(--radius);
  font-size:.88rem;
}
.nav-cta:hover{ background:var(--ink); color:var(--ivory); }
.nav-toggle{ display:none; background:none; border:none; font-size:1.6rem; color:var(--ink); }

@media(max-width:900px){
  .nav{
    position:fixed; inset:0; z-index:40; background:var(--ivory); background-color:var(--ivory);
    flex-direction:column; align-items:center; justify-content:center; gap:6px;
    padding:32px; text-align:center;
    visibility:hidden; pointer-events:none; transform:scale(.97);
    transition:transform .2s ease, visibility 0s linear .2s;
  }
  .nav.open{
    visibility:visible; pointer-events:auto; transform:scale(1);
    transition:transform .2s ease, visibility 0s linear 0s;
  }
  .nav a{
    width:auto; padding:14px 0; border-bottom:none;
    font-family:var(--font-display); font-size:1.6rem; color:var(--ink);
  }
  .nav a.active::after{ left:50%; right:auto; width:24px; transform:translateX(-50%); }
  .nav-cta{ margin-top:18px; padding:12px 30px; }
  .nav-toggle{ display:block; position:relative; z-index:60; }
}
@media(min-width:901px){ .nav{ display:flex !important; visibility:visible !important; pointer-events:auto !important; transform:none !important; } }

/* ---------- Hero (split) ---------- */
.hero{
  display:grid; grid-template-columns:1.05fr .95fr; align-items:stretch;
  min-height:640px;
}
.hero__content{
  display:flex; flex-direction:column; justify-content:center;
  padding:60px 64px; position:relative;
}
.hero__content::after{
  content:''; position:absolute; top:60px; bottom:60px; right:0;
  width:1px; background:var(--gold-soft);
}
.hero h1{ margin-bottom:.35em; }
.hero .lede{ font-size:1.12rem; max-width:44ch; margin-bottom:2em; }
.hero__actions{ display:flex; gap:16px; flex-wrap:wrap; }
.hero__visual{
  position:relative; background:var(--wine);
  background-image:linear-gradient(180deg, rgba(48,72,96,.15), rgba(34,54,74,.68)), var(--hero-img);
  background-size:cover; background-position:center;
}
.hero__visual-note{
  position:absolute; left:36px; bottom:36px; right:36px;
  color:var(--white);
  font-family:var(--font-display); font-style:italic; font-size:1.2rem;
  border-left:2px solid var(--gold-soft); padding-left:16px;
}
@media(max-width:900px){
  .hero{ grid-template-columns:1fr; }
  .hero__content{ padding:48px 24px; }
  .hero__content::after{ display:none; }
  .hero__visual{ min-height:340px; }
}

/* ---------- Story block ---------- */
.story{
  display:grid; grid-template-columns:.9fr 1.1fr; gap:64px; align-items:center;
}
.story__mark{
  font-family:var(--font-display); font-style:italic; color:var(--gold);
  font-size:4rem; line-height:1; margin-bottom:.2em;
}
@media(max-width:860px){ .story{ grid-template-columns:1fr; gap:32px; } }

/* ---------- Collections grid ---------- */
.grid-cards{
  display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line);
  border:1px solid var(--line);
}
.card-collection{
  background:var(--ivory); padding:34px 26px; min-height:240px;
  display:flex; flex-direction:column; justify-content:flex-end;
  transition:background .25s ease;
}
.card-collection:hover{ background:var(--paper); }
.card-collection span{ font-size:.8rem; color:var(--sage); display:block; margin-bottom:6px; }
.card-collection h3{ margin-bottom:.3em; }
.card-collection a{ font-size:.86rem; color:var(--sage); border-bottom:1px solid var(--sage); align-self:flex-start; }
@media(max-width:900px){ .grid-cards{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:520px){ .grid-cards{ grid-template-columns:1fr; } }

/* ---------- Values ---------- */
.values{ display:grid; grid-template-columns:repeat(4,1fr); gap:40px; }
.value-item{ border-top:2px solid var(--gold); padding-top:18px; }
.value-item h4{ font-family:var(--font-display); font-size:1.3rem; margin-bottom:.35em; }
@media(max-width:900px){ .values{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:520px){ .values{ grid-template-columns:1fr; } }

/* ---------- Testimonials ---------- */
.testimonials{ display:grid; grid-template-columns:repeat(3,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.testimonial{ background:var(--ivory); padding:34px; }
.testimonial p{ font-family:var(--font-display); font-style:italic; font-size:1.2rem; color:var(--ink); }
.testimonial cite{ font-style:normal; font-size:.85rem; color:var(--ink-soft); }
@media(max-width:860px){ .testimonials{ grid-template-columns:1fr; } }

/* ---------- Blog preview ---------- */
.blog-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:32px; }
.blog-card img{ width:100%; height:200px; object-fit:cover; margin-bottom:16px; }
.blog-card span{ font-size:.8rem; color:var(--sage); }
.blog-card h3{ margin:.3em 0; }
@media(max-width:860px){ .blog-grid{ grid-template-columns:1fr; } }

/* ---------- CTA band ---------- */
.cta-band{
  background:var(--wine); color:var(--white); text-align:center; padding:88px 28px;
}
.cta-band h2{ color:var(--white); }
.cta-band p{ color:#D7E8F7; margin:0 auto 1.6em; }

/* ---------- Footer ---------- */
.site-footer{ background:var(--ink); color:#D9D1C4; padding:64px 0 28px; }
.footer-grid{ display:grid; grid-template-columns:1.4fr 1fr 1fr 1fr; gap:40px; margin-bottom:48px; }
.footer-grid h5{ color:var(--white); font-family:var(--font-display); font-size:1.1rem; margin-bottom:1em; }
.footer-grid li{ margin-bottom:.6em; }
.footer-grid a{ color:#B9B0A1; font-size:.92rem; }
.footer-grid a:hover{ color:var(--gold-soft); }
.footer-logo{ font-family:var(--font-display); font-size:1.5rem; color:var(--white); margin-bottom:.5em; }
.footer-bottom{
  border-top:1px solid #453E36; padding-top:24px;
  display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px;
  font-size:.82rem; color:#8A8172;
}
@media(max-width:900px){ .footer-grid{ grid-template-columns:1fr 1fr; } }
@media(max-width:520px){ .footer-grid{ grid-template-columns:1fr; } }

/* ---------- Page header (interior pages) ---------- */
.page-header{ padding:64px 0 40px; border-bottom:1px solid var(--line); }
.breadcrumb{ font-size:.85rem; color:var(--ink-soft); margin-bottom:1em; }
.breadcrumb a{ color:var(--sage); }

/* ---------- Shop ---------- */
.shop-layout{ display:grid; grid-template-columns:240px 1fr; gap:48px; align-items:start; }
.filters{ position:sticky; top:100px; }
.filters h4{ font-family:var(--font-display); font-size:1.1rem; margin:1.4em 0 .6em; }
.filters h4:first-child{ margin-top:0; }
.filter-list label{ display:flex; align-items:center; gap:8px; font-size:.92rem; color:var(--ink-soft); margin-bottom:8px; cursor:pointer; }
.product-grid{ display:grid; grid-template-columns:repeat(3,1fr); gap:34px 28px; }
.product-card{ display:block; }
.product-card__img{ aspect-ratio:4/5; overflow:hidden; background:var(--paper); margin-bottom:14px; }
.product-card__img img{ width:100%; height:100%; object-fit:cover; transition:transform .4s ease; }
.product-card:hover .product-card__img img{ transform:scale(1.04); }
.product-card span.cat{ font-size:.78rem; color:var(--sage); }
.product-card h3{ font-size:1.2rem; margin:.25em 0; }
.product-card .price{ color:var(--sage); font-size:.95rem; }
@media(max-width:900px){ .shop-layout{ grid-template-columns:1fr; } .filters{ position:static; } }
@media(max-width:700px){ .product-grid{ grid-template-columns:repeat(2,1fr); } }
@media(max-width:480px){ .product-grid{ grid-template-columns:1fr; } }

/* ---------- Product detail ---------- */
.product-detail{ display:grid; grid-template-columns:1fr 1fr; gap:64px; align-items:start; }
.product-detail__gallery{ position:sticky; top:100px; }
.product-detail__gallery img{ width:100%; aspect-ratio:4/5; object-fit:cover; background:var(--paper); }
.product-detail__price{ font-family:var(--font-display); font-size:1.8rem; color:var(--sage); margin-bottom:1em; }
.form-row{ margin-bottom:20px; }
.form-row label{ display:block; font-size:.85rem; color:var(--ink-soft); margin-bottom:6px; }
.form-row input, .form-row textarea, .form-row select{
  width:100%; padding:12px 14px; border:1px solid var(--line); border-radius:var(--radius);
  background:var(--white); color:var(--ink);
}
.form-row textarea{ min-height:110px; resize:vertical; }
@media(max-width:860px){ .product-detail{ grid-template-columns:1fr; gap:32px; } .product-detail__gallery{ position:static; } }

/* Quantity stepper */
.qty-stepper{
  display:inline-flex; align-items:stretch; border:1px solid var(--line); border-radius:var(--radius);
  overflow:hidden; width:fit-content;
}
.qty-stepper button{
  width:44px; background:var(--paper); border:none; color:var(--ink); font-size:1.1rem;
  cursor:pointer; transition:background .2s ease;
}
.qty-stepper button:hover{ background:var(--paper-deep); }
.qty-stepper input{
  width:64px; border:none; border-left:1px solid var(--line); border-right:1px solid var(--line);
  text-align:center; font-size:.95rem; -moz-appearance:textfield;
}
.qty-stepper input::-webkit-outer-spin-button,
.qty-stepper input::-webkit-inner-spin-button{ -webkit-appearance:none; margin:0; }

/* Trust badges row on product page */
.trust-row{ display:flex; flex-direction:column; gap:10px; margin-top:22px; }
.trust-row .trust-item{ display:flex; align-items:center; gap:10px; font-size:.88rem; color:var(--ink-soft); }
.trust-row .trust-item .dot{
  width:6px; height:6px; border-radius:50%; background:var(--gold); flex-shrink:0;
}

/* ---------- Checkout summary card (order.php step 1) ---------- */
.checkout-product{ position:sticky; top:100px; }
.checkout-product img{ width:100%; aspect-ratio:4/5; object-fit:cover; background:var(--paper); margin-bottom:18px; }
.checkout-product__meta{ display:flex; justify-content:space-between; align-items:baseline; margin-bottom:6px; }
.checkout-product__meta .qty-line{ font-size:.9rem; color:var(--ink-soft); }
@media(max-width:860px){ .checkout-product{ position:static; } }

/* ---------- Custom design process ---------- */
.process{ display:grid; grid-template-columns:repeat(4,1fr); gap:1px; background:var(--line); border:1px solid var(--line); }
.process-step{ background:var(--ivory); padding:30px 26px; }
.process-step .num{ font-family:var(--font-display); font-style:italic; font-size:2.2rem; color:var(--gold); display:block; margin-bottom:.2em; }
@media(max-width:860px){ .process{ grid-template-columns:1fr 1fr; } }
@media(max-width:520px){ .process{ grid-template-columns:1fr; } }

.pricing-table{ width:100%; border-collapse:collapse; }
.pricing-table th, .pricing-table td{ text-align:left; padding:16px; border-bottom:1px solid var(--line); }
.pricing-table th{ font-family:var(--font-display); font-size:1.1rem; font-weight:500; color:var(--ink-soft); }

/* ---------- Blog list / post ---------- */
.blog-list{ display:grid; grid-template-columns:repeat(3,1fr); gap:32px; }
@media(max-width:860px){ .blog-list{ grid-template-columns:1fr; } }
.post-body{ max-width:70ch; margin:0 auto; }
.post-body img{ margin:2em 0; }
.post-body h2{ margin-top:1.4em; }
.post-body p{ max-width:none; font-size:1.05rem; }

/* ---------- Contact ---------- */
.contact-layout{ display:grid; grid-template-columns:1fr 1fr; gap:64px; }
@media(max-width:860px){ .contact-layout{ grid-template-columns:1fr; } }

/* ---------- FAQ ---------- */
.faq-item{ border-bottom:1px solid var(--line); padding:22px 0; }
.faq-item summary{ font-family:var(--font-display); font-size:1.2rem; cursor:pointer; }

/* ---------- Utility ---------- */
.text-center{ text-align:center; }
.mx-auto{ margin-left:auto; margin-right:auto; }
.mb-0{ margin-bottom:0; }
.eyebrow-sage{ color:var(--sage); font-size:.85rem; }
.badge{
  display:inline-block; background:var(--paper-deep); color:var(--ink-soft);
  font-size:.78rem; padding:4px 12px; border-radius:20px; margin-bottom:1em;
}
.alert{ padding:16px 20px; border-radius:var(--radius); margin-bottom:20px; font-size:.92rem; }
.alert-success{ background:#E7EEE1; color:#3E5230; border:1px solid #C7D6B8; }
.alert-error{ background:#F5E2E2; color:#7A2B2B; border:1px solid #E5BEBE; }
.empty-state{ text-align:center; padding:60px 20px; color:var(--ink-soft); }

/* ---------- Logo image (uploaded via Admin) ---------- */
.logo-img{ height:38px; width:auto; display:block; }

/* ---------- Blog: table of contents ---------- */
.post-toc{
  background:var(--paper); border:1px solid var(--line); border-radius:4px;
  padding:22px 26px; margin:0 0 2.2em;
}
.post-toc__title{ font-family:var(--font-display); font-size:1.1rem; margin-bottom:.6em; color:var(--ink); }
.post-toc ol{ counter-reset:toc; padding-left:0; }
.post-toc li{ margin-bottom:.45em; font-size:.94rem; }
.post-toc li a{ color:var(--sage); }
.post-toc li a:hover{ text-decoration:underline; }
.post-toc .toc-h3{ padding-left:20px; font-size:.88rem; }

/* ---------- Blog: content headings & embedded images ---------- */
.post-body h2{ scroll-margin-top:100px; }
.post-body h3{ scroll-margin-top:100px; font-size:1.2rem; }
.post-figure{ margin:2em 0; }
.post-figure img{ width:100%; border-radius:2px; margin:0; }
.post-figure figcaption{
  font-size:.85rem; color:var(--ink-soft); text-align:center; margin-top:.6em; font-style:italic;
}

/* ---------- Payment / checkout ---------- */
.order-layout{ display:grid; grid-template-columns:1fr 1fr; gap:56px; align-items:start; }
@media(max-width:860px){ .order-layout{ grid-template-columns:1fr; gap:32px; } }
.order-summary{
  background:var(--paper); border:1px solid var(--line); border-radius:4px; padding:26px;
}
.order-summary__row{ display:flex; justify-content:space-between; padding:10px 0; border-bottom:1px solid var(--line); font-size:.94rem; }
.order-summary__row:last-child{ border-bottom:none; }
.order-summary__total{ font-family:var(--font-display); font-size:1.4rem; color:var(--sage); }
.payment-box{
  background:var(--white); border:1px solid var(--line); border-radius:4px;
  padding:30px; text-align:center; position:sticky; top:100px;
}
@media(max-width:860px){ .payment-box{ position:static; } }
.payment-box img.qr{ width:100%; max-width:300px; margin:0 auto 18px; border:1px solid var(--line); }
.payment-box .bank-line{ display:flex; justify-content:space-between; padding:8px 0; border-bottom:1px solid var(--line); font-size:.92rem; text-align:left; }
.payment-box .bank-line strong{ color:var(--ink); }
.payment-note{
  background:var(--highlight); border-radius:4px; padding:16px 18px; font-size:.88rem;
  color:var(--ink); margin-top:18px; text-align:left;
}

/* ---------- Highlight badge (pale-yellow accent) ---------- */
.badge-highlight{
  display:inline-block; background:var(--highlight); color:var(--ink);
  font-size:.75rem; padding:4px 14px; border-radius:20px; margin-bottom:.6em;
}