/* ============================================================
   PRINTHUB — Website in PET chuyển nhiệt & bao bì đóng gói
   ============================================================ */

:root {
  --navy-950: #0b1220;
  --navy-900: #0f172a;
  --navy-800: #16213a;
  --navy-700: #1f2c4d;
  --orange-500: #ff9900;
  --orange-600: #e68a00;
  --orange-100: #fff1d9;
  --font-brand: 'Inter', var(--font);
  --blue-600: #2563eb;
  --gray-50: #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-400: #94a3b8;
  --gray-500: #64748b;
  --gray-600: #475569;
  --gray-700: #334155;
  --white: #ffffff;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.10);
  --shadow-lg: 0 20px 45px rgba(15, 23, 42, 0.16);
  --container: 1180px;
  --font: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--gray-700);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4 { color: var(--navy-900); font-weight: 700; margin: 0; line-height: 1.25; }
p { margin: 0; }

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
  white-space: nowrap;
}
.btn-primary { background: var(--orange-500); color: var(--white); }
.btn-primary:hover { background: var(--orange-600); box-shadow: var(--shadow-md); transform: translateY(-1px); }
.btn-outline { background: transparent; border-color: var(--navy-900); color: var(--navy-900); }
.btn-outline:hover { background: var(--navy-900); color: var(--white); }
.btn-ghost { background: transparent; color: var(--navy-900); font-weight: 600; }
.btn-ghost:hover { color: var(--orange-600); }
.btn-lg { padding: 15px 28px; font-size: 1rem; }
.btn-full { width: 100%; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--gray-200);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding-top: 14px;
  padding-bottom: 14px;
}
.logo { display: flex; flex-direction: column; gap: 2px; }
.navbar-brand {
  display: flex;
  align-items: center;
  font-family: var(--font-brand);
  font-weight: 800;
  font-size: 24px;
}
.logo-print { color: var(--navy-900); }
.logo-hub {
  color: #000;
  background: var(--orange-500);
  font-size: 0.9em;
  padding: 0 6px;
  border-radius: 4px;
  margin-left: 2px;
}
.logo-tagline { font-size: 0.72rem; color: var(--gray-500); font-weight: 500; }

.main-nav ul { display: flex; align-items: center; gap: 28px; }
.main-nav a { font-size: 0.95rem; font-weight: 500; color: var(--gray-700); }
.main-nav a:hover { color: var(--orange-600); }

.header-cta { display: flex; align-items: center; gap: 14px; }
.header-cta .btn-ghost { display: flex; align-items: center; gap: 6px; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}
.nav-toggle span { width: 24px; height: 2px; background: var(--navy-900); border-radius: 2px; }

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 55%, var(--navy-700) 100%);
  color: var(--white);
  padding: 76px 0 90px;
  position: relative;
  overflow: hidden;
}
.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(249, 115, 22, 0.35) 0%, rgba(249, 115, 22, 0) 70%);
}
.hero-inner {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 56px;
  align-items: center;
  position: relative;
  z-index: 1;
}
.eyebrow {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--orange-500);
  background: rgba(249, 115, 22, 0.12);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
  letter-spacing: 0.01em;
}
.hero-content h1 {
  color: var(--white);
  font-size: clamp(1.9rem, 3.4vw, 2.7rem);
  margin-bottom: 20px;
}
.hero-desc { color: rgba(255,255,255,0.78); font-size: 1.02rem; max-width: 560px; margin-bottom: 30px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 40px; }
.hero .btn-outline { border-color: rgba(255,255,255,0.5); color: var(--white); }
.hero .btn-outline:hover { background: var(--white); color: var(--navy-900); }

.hero-stats { display: flex; gap: 36px; flex-wrap: wrap; }
.hero-stats li { display: flex; flex-direction: column; gap: 4px; }
.hero-stats strong { font-size: 1.4rem; color: var(--white); }
.hero-stats span { font-size: 0.82rem; color: rgba(255,255,255,0.62); max-width: 160px; }

.hero-media { display: flex; flex-direction: column; gap: 16px; }
.hero-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.14);
  border-radius: var(--radius-md);
  padding: 20px 22px;
  backdrop-filter: blur(6px);
}
.hero-card .tag { font-size: 0.78rem; font-weight: 700; color: var(--orange-500); display: block; margin-bottom: 8px; }
.hero-card p { color: rgba(255,255,255,0.82); font-size: 0.92rem; }
.card-2 { margin-left: 28px; }
.card-3 { margin-left: 14px; }

/* ---------- Trust bar ---------- */
.trust-bar { background: var(--gray-100); padding: 16px 0; border-bottom: 1px solid var(--gray-200); }
.trust-inner p { text-align: center; font-size: 0.86rem; color: var(--gray-500); font-weight: 500; }

/* ---------- Sections ---------- */
.section { padding: 84px 0; }
.section-alt { background: var(--gray-50); }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--orange-600);
  margin-bottom: 10px;
}
.section-head h2 { font-size: clamp(1.5rem, 2.4vw, 2rem); margin-bottom: 14px; }
.section-head p { color: var(--gray-500); font-size: 1rem; }
.section-note { text-align: center; color: var(--gray-500); font-size: 0.86rem; margin-top: 36px; }

/* ---------- Grids & Cards ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

.card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 30px 26px;
  transition: box-shadow .2s ease, transform .2s ease;
}
.card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.card-icon {
  font-size: 0.85rem;
  font-weight: 800;
  color: var(--orange-500);
  border: 1.5px solid var(--orange-100);
  background: var(--orange-100);
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  border-radius: 10px;
  margin-bottom: 18px;
}
.card h3 { font-size: 1.08rem; margin-bottom: 10px; }
.card p { color: var(--gray-500); font-size: 0.92rem; }

.info-panel {
  margin-top: 52px;
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
}
.info-panel h3 { color: var(--white); font-size: 1.2rem; margin-bottom: 14px; }
.info-panel p { color: rgba(255,255,255,0.78); font-size: 0.96rem; }
.info-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 20px; }
.info-tags span {
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.16);
  padding: 7px 14px;
  border-radius: 999px;
  font-size: 0.82rem;
  color: rgba(255,255,255,0.9);
}
.info-panel-alt { background: var(--white); border: 1px solid var(--gray-200); }
.info-panel-alt h3 { color: var(--navy-900); }
.info-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 22px; }
.info-grid strong { display: block; color: var(--navy-900); font-size: 0.95rem; margin-bottom: 6px; }
.info-grid p { color: var(--gray-500); font-size: 0.86rem; }

/* ---------- Product cards (vật tư) ---------- */
.product-grid { margin-top: 8px; }
.product-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}
.product-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.product-media { height: 130px; background: var(--navy-900); position: relative; }
.product-media::before {
  content: "";
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-950));
}
.ph-film::after, .ph-ink::after, .ph-powder::after {
  content: "";
  position: absolute; inset: 0;
  opacity: 0.5;
}
.ph-film { background: linear-gradient(135deg, #1e293b, #0f172a); }
.ph-ink { background: linear-gradient(135deg, #7c2d12, #f97316); }
.ph-powder { background: linear-gradient(135deg, #334155, #64748b); }
.product-body { padding: 24px 24px 28px; }
.product-badge {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--orange-600);
  background: var(--orange-100);
  padding: 4px 10px;
  border-radius: 999px;
  margin-bottom: 12px;
}
.product-badge-accent { background: var(--navy-900); color: var(--white); }
.product-body h3 { font-size: 1.1rem; margin-bottom: 10px; }
.product-body > p { color: var(--gray-500); font-size: 0.9rem; margin-bottom: 18px; }

.spec-list { display: flex; flex-direction: column; gap: 10px; border-top: 1px solid var(--gray-200); padding-top: 16px; }
.spec-list li { display: flex; justify-content: space-between; font-size: 0.86rem; }
.spec-list span { color: var(--gray-500); }
.spec-list strong { color: var(--navy-900); font-weight: 600; text-align: right; }
.spec-list.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 12px 18px; }
.spec-list.two-col li { flex-direction: column; gap: 2px; }

/* ---------- Packaging ---------- */
.packaging-grid { align-items: stretch; }
.package-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  padding: 34px 34px 32px;
  display: flex;
  flex-direction: column;
}
.package-card.featured {
  border-color: var(--orange-500);
  box-shadow: 0 0 0 4px var(--orange-100);
}
.package-card h3 { font-size: 1.25rem; margin: 12px 0 12px; }
.package-card > p { color: var(--gray-500); font-size: 0.94rem; margin-bottom: 20px; }
.package-card .spec-list.two-col { margin-bottom: 26px; }
.package-card .btn { align-self: flex-start; }

/* ---------- Process ---------- */
.process-steps { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; counter-reset: step; }
.process-steps li { display: flex; flex-direction: column; gap: 14px; background: var(--white); border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 26px 20px; }
.step-num {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: var(--navy-900);
  color: var(--white);
  font-weight: 700;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem;
}
.process-steps h3 { font-size: 1rem; margin-bottom: 8px; }
.process-steps p { color: var(--gray-500); font-size: 0.86rem; }

/* ---------- Reasons ---------- */
.reason-card {
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  border-top: 3px solid var(--orange-500);
}
.reason-card h3 { font-size: 1rem; margin-bottom: 8px; }
.reason-card p { color: var(--gray-500); font-size: 0.86rem; }

/* ---------- Quote form ---------- */
.section-quote { background: var(--navy-900); color: var(--white); }
.quote-inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 56px; align-items: start; }
.quote-intro .section-eyebrow { color: var(--orange-500); }
.quote-intro h2 { color: var(--white); margin-bottom: 16px; }
.quote-intro p { color: rgba(255,255,255,0.72); margin-bottom: 30px; }
.quote-contact { display: flex; flex-direction: column; gap: 16px; }
.quote-contact li { display: flex; flex-direction: column; gap: 2px; border-top: 1px solid rgba(255,255,255,0.12); padding-top: 14px; }
.quote-contact strong { font-size: 0.78rem; text-transform: uppercase; letter-spacing: 0.04em; color: rgba(255,255,255,0.5); }
.quote-contact a, .quote-contact span { color: var(--white); font-weight: 600; }

.quote-form {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
  box-shadow: var(--shadow-lg);
}
.form-row { display: flex; flex-direction: column; gap: 8px; }
.form-row-full { grid-column: 1 / -1; }
.form-row label { font-size: 0.86rem; font-weight: 600; color: var(--navy-900); }
.form-row label span { color: var(--orange-600); margin-left: 2px; }
.form-row input, .form-row select, .form-row textarea {
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-sm);
  padding: 11px 14px;
  font-family: var(--font);
  font-size: 0.92rem;
  color: var(--navy-900);
  background: var(--gray-50);
  transition: border-color .15s ease, background .15s ease;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--orange-500);
  background: var(--white);
}
.form-row textarea { resize: vertical; }
.form-hint { font-size: 0.78rem; color: var(--gray-500); margin-top: 10px; text-align: center; }

/* ---------- FAQ ---------- */
.faq-list { max-width: 760px; margin: 0 auto; display: flex; flex-direction: column; gap: 12px; }
.faq-item { border: 1px solid var(--gray-200); border-radius: var(--radius-md); overflow: hidden; }
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  background: var(--white);
  border: none;
  padding: 18px 22px;
  text-align: left;
  font-family: var(--font);
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--navy-900);
  cursor: pointer;
}
.faq-icon { font-size: 1.3rem; color: var(--orange-500); font-weight: 300; transition: transform .2s ease; flex-shrink: 0; }
.faq-item.open .faq-icon { transform: rotate(45deg); }
.faq-answer { max-height: 0; overflow: hidden; transition: max-height .25s ease; background: var(--gray-50); }
.faq-answer p { padding: 0 22px 18px; color: var(--gray-600); font-size: 0.9rem; }
.faq-item.open .faq-answer { max-height: 220px; }

/* ---------- Contact ---------- */
.contact-inner { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 48px; align-items: stretch; }
.contact-info p { color: var(--gray-500); margin: 14px 0 30px; }
.contact-list { display: flex; flex-direction: column; gap: 18px; margin-bottom: 30px; }
.contact-list li { border-top: 1px solid var(--gray-200); padding-top: 14px; display: flex; flex-direction: column; gap: 2px; }
.contact-list strong { font-size: 0.76rem; text-transform: uppercase; letter-spacing: 0.04em; color: var(--gray-400); }
.contact-list a, .contact-list span { color: var(--navy-900); font-weight: 600; }
.contact-social { display: flex; gap: 12px; }
.contact-social a {
  border: 1px solid var(--gray-200);
  padding: 9px 16px;
  border-radius: 999px;
  font-size: 0.84rem;
  font-weight: 600;
  color: var(--navy-900);
}
.contact-social a:hover { background: var(--navy-900); color: var(--white); }
.contact-map { border-radius: var(--radius-lg); overflow: hidden; min-height: 340px; border: 1px solid var(--gray-200); }

/* ---------- Footer ---------- */
.site-footer { background: var(--navy-950); color: rgba(255,255,255,0.7); }
.footer-inner {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr 1fr;
  gap: 40px;
  padding: 64px 24px 40px;
}
.footer-brand .logo-print { color: var(--white); }
.footer-brand p { margin-top: 14px; font-size: 0.88rem; color: rgba(255,255,255,0.55); max-width: 260px; }
.footer-col h4 { color: var(--white); font-size: 0.9rem; margin-bottom: 18px; }
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a { font-size: 0.88rem; color: rgba(255,255,255,0.6); }
.footer-col a:hover { color: var(--orange-500); }
.footer-bottom { border-top: 1px solid rgba(255,255,255,0.1); padding: 20px 0; }
.footer-bottom p { text-align: center; font-size: 0.8rem; color: rgba(255,255,255,0.45); }

/* ---------- Floating actions ---------- */
.floating-actions {
  position: fixed;
  right: 20px;
  bottom: 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
  z-index: 90;
}
.fab {
  width: 56px; height: 56px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--white);
  box-shadow: var(--shadow-lg);
  transition: transform .15s ease;
}
.fab:hover { transform: scale(1.06); }
.fab-zalo { background: #0068ff; }
.fab-call { background: var(--orange-500); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 1024px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .process-steps { grid-template-columns: repeat(3, 1fr); }
  .info-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 900px) {
  .main-nav { display: none; }
  .nav-toggle { display: flex; }
  .header-cta .btn-ghost { display: none; }

  .hero-inner { grid-template-columns: 1fr; }
  .hero-media { display: none; }

  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .quote-inner { grid-template-columns: 1fr; }
  .quote-form { grid-template-columns: 1fr; }
  .contact-inner { grid-template-columns: 1fr; }
  .contact-map { min-height: 260px; }
  .process-steps { grid-template-columns: 1fr 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 560px) {
  .section { padding: 60px 0; }
  .hero { padding: 56px 0 64px; }
  .process-steps { grid-template-columns: 1fr; }
  .info-grid { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; padding: 48px 24px 32px; }
  .hero-stats { gap: 22px; }
  .header-cta .btn-primary { padding: 10px 16px; font-size: 0.88rem; }
}

/* Mobile nav open state */
.main-nav.open {
  display: block;
  position: absolute;
  top: 100%;
  left: 0;
  right: 0;
  background: var(--white);
  border-bottom: 1px solid var(--gray-200);
  box-shadow: var(--shadow-md);
}
.main-nav.open ul { flex-direction: column; align-items: flex-start; gap: 0; padding: 8px 24px 20px; }
.main-nav.open li { width: 100%; }
.main-nav.open a { display: block; padding: 12px 0; border-bottom: 1px solid var(--gray-100); }

/* ============================================================
   BLOG — trang danh sách bài viết & trang chi tiết bài viết
   ============================================================ */

/* Breadcrumb dùng chung */
.breadcrumb { display: flex; align-items: center; gap: 8px; font-size: 0.84rem; color: var(--gray-500); margin-bottom: 18px; }
.breadcrumb a { color: var(--gray-500); }
.breadcrumb a:hover { color: var(--orange-600); }
.breadcrumb span { color: var(--gray-400); }
.breadcrumb .current { color: var(--navy-900); font-weight: 600; }

/* Hero nhỏ cho trang blog */
.blog-hero {
  background: linear-gradient(160deg, var(--navy-950) 0%, var(--navy-900) 60%, var(--navy-700) 100%);
  color: var(--white);
  padding: 56px 0 48px;
}
.blog-hero .section-eyebrow { color: var(--orange-500); }
.blog-hero h1 { color: var(--white); font-size: clamp(1.7rem, 3vw, 2.3rem); margin: 10px 0 14px; }
.blog-hero p { color: rgba(255,255,255,0.72); max-width: 620px; font-size: 1rem; }

/* Bộ lọc chủ đề (tag) trên trang danh sách blog */
.blog-filters { display: flex; flex-wrap: wrap; gap: 10px; margin: 36px 0 32px; }
.blog-filters button {
  border: 1px solid var(--gray-200);
  background: var(--white);
  color: var(--gray-600);
  font-family: var(--font);
  font-size: 0.86rem;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  cursor: pointer;
  transition: all .15s ease;
}
.blog-filters button:hover { border-color: var(--orange-500); color: var(--orange-600); }
.blog-filters button.active { background: var(--navy-900); border-color: var(--navy-900); color: var(--white); }

/* Lưới danh sách bài viết */
.blog-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 26px; }
.blog-card {
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: box-shadow .2s ease, transform .2s ease;
}
.blog-card:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.blog-card-media {
  height: 160px;
  background: linear-gradient(135deg, var(--navy-800), var(--navy-950));
  position: relative;
  display: flex;
  align-items: flex-end;
  padding: 14px;
}
.blog-card-media .blog-cat {
  background: var(--orange-500);
  color: #000;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.blog-card-body { padding: 20px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.blog-card-date { font-size: 0.78rem; color: var(--gray-400); font-weight: 600; }
.blog-card-body h3 { font-size: 1.05rem; line-height: 1.4; }
.blog-card-body h3 a { color: var(--navy-900); }
.blog-card-body h3 a:hover { color: var(--orange-600); }
.blog-card-body p { color: var(--gray-500); font-size: 0.88rem; flex: 1; }
.blog-card-link { font-size: 0.86rem; font-weight: 700; color: var(--orange-600); display: inline-flex; align-items: center; gap: 4px; }
.blog-empty { text-align: center; color: var(--gray-500); padding: 60px 0; grid-column: 1 / -1; }

/* Trang chi tiết bài viết */
.post-hero { background: var(--gray-50); border-bottom: 1px solid var(--gray-200); padding: 40px 0 36px; }
.post-hero .post-cat {
  display: inline-block;
  background: var(--orange-100);
  color: var(--orange-600);
  font-size: 0.76rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  padding: 5px 12px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.post-hero h1 { font-size: clamp(1.5rem, 3vw, 2.1rem); margin-bottom: 16px; max-width: 820px; }
.post-meta { display: flex; flex-wrap: wrap; gap: 18px; font-size: 0.86rem; color: var(--gray-500); }
.post-meta strong { color: var(--navy-900); }

.post-body { padding: 48px 0 64px; }
.post-layout { display: grid; grid-template-columns: 1fr 300px; gap: 56px; align-items: start; }

.post-content { max-width: 720px; }
.post-content > p { color: var(--gray-700); font-size: 1.02rem; margin-bottom: 20px; }
.post-content h2 { font-size: 1.4rem; margin: 40px 0 16px; }
.post-content h3 { font-size: 1.15rem; margin: 28px 0 12px; }
.post-content ul, .post-content ol { margin: 0 0 20px; padding-left: 22px; color: var(--gray-700); }
.post-content li { margin-bottom: 8px; font-size: 1rem; }
.post-content strong { color: var(--navy-900); }
.post-content a { color: var(--orange-600); font-weight: 600; text-decoration: underline; text-decoration-color: var(--orange-100); }
.post-content blockquote {
  border-left: 3px solid var(--orange-500);
  background: var(--gray-50);
  padding: 16px 22px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--gray-600);
  font-size: 0.96rem;
  margin: 24px 0;
}
.post-content table { width: 100%; border-collapse: collapse; margin: 20px 0 28px; font-size: 0.92rem; }
.post-content th, .post-content td { border: 1px solid var(--gray-200); padding: 10px 14px; text-align: left; }
.post-content th { background: var(--gray-50); color: var(--navy-900); font-weight: 700; }

.post-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--gray-200); }
.post-tags span { background: var(--gray-100); color: var(--gray-600); font-size: 0.8rem; font-weight: 600; padding: 5px 12px; border-radius: 999px; }

.post-cta {
  background: var(--navy-900);
  color: var(--white);
  border-radius: var(--radius-lg);
  padding: 30px;
  margin-top: 36px;
}
.post-cta h3 { color: var(--white); font-size: 1.1rem; margin-bottom: 10px; }
.post-cta p { color: rgba(255,255,255,0.72); font-size: 0.9rem; margin-bottom: 18px; }

.post-sidebar { display: flex; flex-direction: column; gap: 20px; position: sticky; top: 96px; }
.post-sidebar-box { background: var(--gray-50); border: 1px solid var(--gray-200); border-radius: var(--radius-md); padding: 22px; }
.post-sidebar-box h4 { font-size: 0.95rem; margin-bottom: 14px; }
.post-sidebar-list { display: flex; flex-direction: column; gap: 12px; }
.post-sidebar-list a { font-size: 0.88rem; color: var(--gray-700); font-weight: 500; line-height: 1.4; display: block; }
.post-sidebar-list a:hover { color: var(--orange-600); }

/* Khối bài viết mới nhất trên trang chủ */
.home-blog-grid { margin-top: 8px; }

@media (max-width: 1024px) {
  .blog-grid { grid-template-columns: repeat(2, 1fr); }
  .post-layout { grid-template-columns: 1fr; }
  .post-sidebar { position: static; flex-direction: row; overflow-x: auto; }
  .post-sidebar-box { min-width: 260px; }
}
@media (max-width: 640px) {
  .blog-grid { grid-template-columns: 1fr; }
  .post-sidebar { flex-direction: column; }
}