/* =========================================================
   PHOCO - Landing Page Nón Đồng Phục
   Design System: Navy #002E80 / Orange #FD7600
   Font: Be Vietnam Pro (Google Fonts)
   Mobile-first, breakpoints: 360 / 390 / 768 / 1024 / 1440
   ========================================================= */

/* ---------- 1. Design tokens ---------- */
:root{
  --color-navy: #002E80;
  --color-navy-dark: #001B4D;
  --color-navy-light: #1849A8;
  --color-orange: #FD7600;
  --color-orange-dark: #DB6500;
  --color-orange-light: #FFF1E3;
  --color-bg: #FFFFFF;
  --color-bg-alt: #F6F8FB;
  --color-bg-navy-soft: #EEF2FA;
  --color-text: #16202E;
  --color-text-muted: #5A6577;
  --color-border: #E3E8EF;
  --color-success: #1E8E3E;
  --color-error: #D93025;

  --font-base: 'Be Vietnam Pro', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif;

  --container-max: 1200px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --shadow-sm: 0 2px 8px rgba(0,26,77,0.06);
  --shadow-md: 0 8px 24px rgba(0,26,77,0.10);
  --shadow-lg: 0 16px 48px rgba(0,26,77,0.14);

  --header-h: 68px;
}

/* ---------- 2. Reset ---------- */
*, *::before, *::after{ box-sizing: border-box; }
html{ scroll-behavior: smooth; scroll-padding-top: var(--header-h); }
body, h1, h2, h3, h4, p, ul, ol, li, figure, table, th, td{ margin: 0; padding: 0; }
ul, ol{ list-style: none; }
img{ max-width: 100%; display: block; }
a{ color: inherit; text-decoration: none; }
button{ font: inherit; cursor: pointer; border: none; background: none; color: inherit; }
input, select, textarea{ font: inherit; }
table{ border-collapse: collapse; width: 100%; }

body{
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

.container{
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 20px;
}

section{ padding: 56px 0; }

.section-head{
  text-align: center;
  max-width: 720px;
  margin: 0 auto 36px;
}
.section-eyebrow{
  display: inline-block;
  color: var(--color-orange-dark);
  background: var(--color-orange-light);
  font-weight: 700;
  font-size: 13px;
  letter-spacing: .04em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}
.section-head h2{
  font-size: clamp(24px, 4vw, 34px);
  font-weight: 800;
  color: var(--color-navy);
  line-height: 1.3;
}
.section-head p{
  margin-top: 12px;
  color: var(--color-text-muted);
  font-size: clamp(15.5px, 2.2vw, 17.5px);
}
.section-alt{ background: var(--color-bg-alt); }

/* ---------- Scroll reveal ---------- */
.reveal{
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .45s cubic-bezier(.2,.7,.3,1), transform .45s cubic-bezier(.2,.7,.3,1);
  will-change: opacity, transform;
}
.reveal.is-visible{ opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce){
  .reveal{ opacity: 1; transform: none; transition: none; }
}

.sr-only{
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}
.skip-link{
  position: absolute; left: 12px; top: -60px;
  background: var(--color-navy); color: #fff;
  padding: 10px 16px; border-radius: var(--radius-sm);
  z-index: 200; transition: top .2s ease;
}
.skip-link:focus{ top: 12px; }

/* ---------- 3. Buttons ---------- */
.btn{
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  padding: 14px 26px;
  border-radius: 999px;
  font-weight: 700;
  font-size: 15px;
  line-height: 1;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
  white-space: nowrap;
}
.btn:active{ transform: translateY(1px); }
.btn-primary{
  background: var(--color-orange);
  color: #fff;
  box-shadow: 0 8px 20px rgba(253,118,0,0.30);
}
.btn-primary:hover{ background: var(--color-orange-dark); }
.btn-outline{
  background: transparent;
  color: var(--color-navy);
  border: 2px solid var(--color-navy);
}
.btn-outline:hover{ background: var(--color-navy); color: #fff; }
.btn-outline-light{
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255,255,255,0.7);
}
.btn-outline-light:hover{ background: rgba(255,255,255,0.15); }
.btn-block{ width: 100%; }
.btn[disabled]{ opacity: .65; cursor: not-allowed; }

/* ---------- 4. Header / Nav ---------- */
.site-header{
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: rgba(255,255,255,0.96);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--color-border);
}
.site-header .container{
  height: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
}
.brand{ display: flex; align-items: center; height: 100%; }
.brand img{ height: 34px; width: auto; }

.main-nav{
  display: none;
}
.main-nav ul{ display: flex; align-items: center; gap: 16px; }
.main-nav a{
  font-weight: 600; font-size: 13.5px; color: var(--color-text);
  padding: 8px 0; position: relative;
  white-space: nowrap;
}
.main-nav a:hover{ color: var(--color-navy); }

.header-actions{ display: flex; align-items: center; gap: 10px; }
.header-phone{
  display: none;
  align-items: center; gap: 8px;
  font-weight: 700; color: var(--color-navy);
  font-size: 14.5px;
}
.header-phone svg{ flex-shrink: 0; }

.nav-toggle{
  display: flex; flex-direction: column; gap: 5px;
  width: 30px; height: 24px; justify-content: center;
  padding: 4px;
}
.nav-toggle span{
  display: block; height: 2.5px; width: 100%;
  background: var(--color-navy); border-radius: 2px;
  transition: transform .25s ease, opacity .25s ease;
}
.nav-toggle[aria-expanded="true"] span:nth-child(1){ transform: translateY(7.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2){ opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3){ transform: translateY(-7.5px) rotate(-45deg); }

.mobile-nav{
  display: none;
  position: fixed; inset: var(--header-h) 0 0 0;
  background: #fff;
  z-index: 99;
  padding: 24px 20px;
  overflow-y: auto;
}
.mobile-nav.is-open{ display: block; }
.mobile-nav ul{ display: flex; flex-direction: column; gap: 4px; }
.mobile-nav a{
  display: block; padding: 14px 6px;
  font-weight: 700; font-size: 17px; color: var(--color-navy);
  border-bottom: 1px solid var(--color-border);
}
.mobile-nav .btn{ margin-top: 20px; }

/* ---------- 5. Hero ---------- */
.hero{
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: #fff;
  padding: 52px 0 60px;
  position: relative;
  overflow: hidden;
}
.hero::after{
  content: "";
  position: absolute; right: -120px; top: -120px;
  width: 360px; height: 360px; border-radius: 50%;
  background: radial-gradient(circle, rgba(253,118,0,0.35), transparent 70%);
}
.hero .container{
  position: relative; z-index: 1;
  display: flex; flex-direction: column; gap: 34px;
}
.hero-copy{ max-width: 640px; }
.hero-eyebrow{
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.12);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 7px 16px; border-radius: 999px;
  font-size: 13px; font-weight: 700; letter-spacing: .02em;
  margin-bottom: 20px;
}
.hero h1{
  font-size: clamp(28px, 5vw, 46px);
  font-weight: 800;
  line-height: 1.22;
  margin-bottom: 18px;
}
.hero h1 .accent{ color: var(--color-orange); }
.hero p.lead{
  font-size: clamp(16px, 2vw, 18px);
  color: rgba(255,255,255,0.85);
  max-width: 560px;
  margin-bottom: 28px;
}
.hero-ctas{ display: flex; flex-wrap: wrap; gap: 14px; }
.hero-ctas .btn-primary{
  padding: 17px 32px;
  font-size: 16px;
  box-shadow: 0 10px 28px rgba(253,118,0,0.42);
}
.hero-media{
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  max-height: 420px;
}
.hero-media img{ width: 100%; height: 100%; object-fit: cover; }

/* Trust bar */
.trust-bar{
  background: var(--color-orange-light);
  padding: 22px 0;
}
.trust-bar ul{
  display: flex; flex-direction: column; gap: 14px;
}
.trust-bar li{
  display: flex; align-items: center; gap: 10px;
  font-weight: 700; color: var(--color-navy);
  font-size: 15px;
  white-space: nowrap;
}
.trust-bar li svg{ flex-shrink: 0; color: var(--color-orange); }

/* ---------- 6. Pain point ---------- */
.pain-point-grid{
  display: flex;
  flex-direction: column;
  gap: 28px;
  align-items: center;
  max-width: 1020px;
}
.pain-point-copy{ width: 100%; }
.pain-point .section-head-left{
  text-align: left;
  max-width: none;
  margin: 0 0 18px;
}
.pain-point p{ font-size: 17px; color: var(--color-text); }
.pain-point p strong{ color: var(--color-navy); }
.pain-point-media{
  width: 100%;
  max-width: 280px;
}
.pain-point-media img{
  display: block;
  width: 100%;
  height: auto;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}

@media (min-width: 768px){
  .pain-point-grid{ flex-direction: row; align-items: center; }
  .pain-point-copy{ flex: 1; }
  .pain-point-media{ flex: 0 0 260px; max-width: 260px; }
}

/* ---------- 7. Persona section ---------- */
.persona-grid{
  display: grid; grid-template-columns: 1fr; gap: 14px;
}
.persona-card{
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 20px;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.persona-card:hover{
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
  border-color: var(--color-navy-light);
}
.persona-card h3{
  font-size: 17.5px; font-weight: 700; color: var(--color-navy);
  margin-bottom: 8px;
  display: flex; align-items: center; gap: 10px;
}
.persona-card .persona-icon{
  width: 34px; height: 34px; flex-shrink: 0;
  border-radius: 50%;
  background: var(--color-bg-navy-soft);
  display: flex; align-items: center; justify-content: center;
  color: var(--color-navy);
}
.persona-card p{ font-size: 15.5px; color: var(--color-text-muted); }
.persona-note{
  margin-top: 24px;
  text-align: center;
  font-size: 14.5px;
  color: var(--color-text-muted);
  max-width: 760px;
  margin-left: auto;
  margin-right: auto;
}
.persona-note a{ color: var(--color-navy); font-weight: 700; text-decoration: underline; }

/* ---------- 8. Product categories (catalog-style cards) ---------- */
.product-grid{
  display: grid; grid-template-columns: 1fr; gap: 22px;
}
.product-card{
  background: #fff;
  border-radius: 14px;
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
  display: flex; flex-direction: column;
  cursor: pointer;
}
.product-card:hover{
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
  border-color: var(--color-navy-light);
}
.product-card .product-img{
  aspect-ratio: 3 / 4;
  overflow: hidden;
  background: var(--color-bg-alt);
  border-radius: 14px 14px 0 0;
}
.product-card .product-img img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.product-card:hover .product-img img{ transform: scale(1.03); }
.product-card .product-body{ padding: 22px 20px 24px; flex: 1; display: flex; flex-direction: column; }
.product-card h3{
  font-size: clamp(18px, 2.4vw, 21px);
  font-weight: 800;
  letter-spacing: .01em;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: 8px;
}
.product-card p{ font-size: 15.5px; color: var(--color-text-muted); flex: 1; margin-bottom: 14px; }
.product-cta{
  align-self: flex-start;
  display: inline-flex; align-items: center; gap: 6px;
  font-weight: 700; font-size: 14.5px;
  color: var(--color-orange-dark);
  padding: 0;
  transition: gap .2s ease, color .2s ease;
}
.product-card:hover .product-cta{ gap: 11px; color: var(--color-orange); }

/* Khóa chỉnh size mini strip */
.lock-strip{ margin-top: 44px; }
.lock-strip h3{
  text-align: center; color: var(--color-navy);
  font-size: clamp(17px, 2.4vw, 19px); font-weight: 700; margin-bottom: 20px;
}
.lock-grid{
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px;
  max-width: 640px; margin: 0 auto;
}
.lock-card{
  text-align: center; background: #fff;
  border: 1px solid var(--color-border); border-radius: var(--radius-md);
  overflow: hidden; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.lock-card:hover{ transform: scale(1.03); box-shadow: var(--shadow-md); }
.lock-card .product-img{ aspect-ratio: 3/4; overflow: hidden; background: var(--color-bg-alt); }
.lock-card .product-img img{ width: 100%; height: 100%; object-fit: cover; }
.lock-card figcaption{ padding: 10px; font-size: 14.5px; font-weight: 700; color: var(--color-navy); }

/* ---------- 9. Materials table ---------- */
.table-scroll{
  overflow-x: auto;
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  -webkit-overflow-scrolling: touch;
}
.data-table{ min-width: 640px; }
.data-table th, .data-table td{
  padding: 16px 18px;
  text-align: left;
  font-size: 16px;
  border-bottom: 1px solid var(--color-border);
  vertical-align: top;
}
.data-table thead th{
  background: var(--color-navy);
  color: #fff;
  font-weight: 700;
  font-size: 14.5px;
  text-transform: uppercase;
  letter-spacing: .02em;
}
.data-table tbody tr:last-child td{ border-bottom: none; }
.data-table tbody tr:nth-child(even){ background: var(--color-bg-alt); }
.table-note{
  margin-top: 14px;
  font-size: 13px;
  color: var(--color-text-muted);
  font-style: italic;
}

/* Mobile alternative to a scrollable table: a stacked list of
   need/hat-type cards, shown only below the tablet breakpoint so
   nothing needs a horizontal scroll on a phone. */
.needs-cards{
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.needs-card{
  display: flex;
  flex-direction: column;
  gap: 4px;
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: 14px;
  padding: 14px 16px;
  box-shadow: var(--shadow-sm);
}
.needs-label{
  font-size: 13px;
  font-weight: 600;
  color: var(--color-text-muted);
}
.needs-value{
  font-size: 16px;
  font-weight: 700;
  color: var(--color-navy);
}
@media (min-width: 768px){
  .needs-cards{ display: none; }
}
@media (max-width: 767px){
  .needs-table{ display: none; }
}

/* Color showcase image: sized by its own real intrinsic ratio,
   never stretched, regardless of what width/height a browser
   might otherwise infer. */
.color-showcase{
  margin-top: 40px;
  text-align: center;
}
.color-showcase h3{
  color: var(--color-navy);
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.color-showcase-frame{
  max-width: 480px;
  margin: 0 auto;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-bg-alt);
}
.color-showcase-frame img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}
.color-showcase-note{
  max-width: 640px;
  margin: 18px auto 0;
  font-size: 15px;
  color: var(--color-text-muted);
}
.flag-showcase{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
  max-width: 480px;
  margin: 22px auto 0;
}
.flag-showcase-item{
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease;
}
.flag-showcase-item:hover{ transform: scale(1.03); box-shadow: var(--shadow-md); }
.flag-showcase-item img{ width: 100%; height: auto; display: block; aspect-ratio: 3/4; object-fit: cover; }
.flag-showcase-item figcaption{ padding: 10px; font-size: 13.5px; font-weight: 600; color: var(--color-navy); }

.fabric-stock{
  margin-top: 40px;
  text-align: center;
}
.fabric-stock img{
  display: block;
  width: 100%;
  max-width: 720px;
  height: auto;
  margin: 0 auto;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}
.fabric-stock p{
  max-width: 560px;
  margin: 16px auto 0;
  font-size: 15px;
  color: var(--color-text-muted);
}

/* ---------- 10. Print/embroidery: kỹ thuật logo ---------- */
.technique-grid{
  display: grid; grid-template-columns: 1fr; gap: 18px;
  margin-top: 8px;
}
.technique-card{
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}
.technique-card:hover{ transform: scale(1.03); box-shadow: var(--shadow-md); }
.technique-img{
  aspect-ratio: 4/3;
  overflow: hidden;
  background: var(--color-bg-alt);
}
.technique-img img{
  width: 100%; height: 100%; object-fit: cover;
  transition: transform .4s ease;
}
.technique-card:hover .technique-img img{ transform: scale(1.03); }
.technique-body{ padding: 20px; }
.technique-body h3{
  font-size: 18px; font-weight: 800; text-transform: uppercase;
  color: var(--color-navy); margin-bottom: 6px;
}
.technique-body p{ font-size: 15px; color: var(--color-text-muted); }
.technique-card-cta{
  display: flex; align-items: center; justify-content: center;
  background: var(--color-bg-navy-soft);
  border-style: dashed;
  border-color: var(--color-navy-light);
}
.technique-card-cta .technique-body{
  text-align: center; display: flex; flex-direction: column; align-items: center; gap: 4px;
  padding: 28px 20px;
}
.technique-card-cta .usp-icon{ color: var(--color-navy); margin-bottom: 6px; }
.technique-card-cta p{ margin-bottom: 14px; }
.technique-card-cta .btn{ margin-top: 6px; }

/* ---------- 11. Process ---------- */
.process-list{
  display: grid; grid-template-columns: 1fr; gap: 18px;
  counter-reset: step;
  position: relative;
}
.process-step{
  display: flex; gap: 16px; align-items: flex-start;
  background: #fff; border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: 20px;
  box-shadow: var(--shadow-sm);
}
.process-step .step-num{
  counter-increment: step;
  flex-shrink: 0;
  width: 42px; height: 42px; border-radius: 50%;
  background: var(--color-navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 17px;
}
.process-step h3{ font-size: 16px; font-weight: 700; color: var(--color-navy); margin-bottom: 4px; }
.process-step p{ font-size: 15.5px; color: var(--color-text-muted); }
.process-note{ margin-top: 18px; font-size: 13.5px; color: var(--color-text-muted); font-style: italic; text-align: center; }

/* ---------- 12. USP / Why PHOCO ---------- */
.usp-grid{
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 16px;
}
.usp-card{
  background: var(--color-bg-navy-soft);
  border-radius: var(--radius-md);
  padding: 26px 20px;
  text-align: center;
  transition: transform .2s ease, box-shadow .2s ease, background .2s ease;
}
.usp-card:hover{
  transform: scale(1.03);
  box-shadow: var(--shadow-md);
  background: #fff;
}
.usp-icon{
  display: inline-flex; align-items: center; justify-content: center;
  width: 54px; height: 54px; border-radius: 50%;
  background: #fff;
  color: var(--color-orange);
  margin-bottom: 14px;
  box-shadow: var(--shadow-sm);
}
.usp-card h3{
  font-size: clamp(17px, 2.2vw, 19.5px);
  font-weight: 800;
  text-transform: uppercase;
  color: var(--color-navy);
  margin-bottom: 6px;
}
.usp-card p{ font-size: 15px; color: var(--color-text-muted); font-weight: 600; }

/* ---------- 12b. Team / trust ---------- */
.team-banner{
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  margin-bottom: 24px;
}
.team-banner img{ width: 100%; height: auto; display: block; }
.team-portraits{
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
  max-width: 480px;
  margin: 0 auto;
}
.team-portrait{
  text-align: center;
}
.team-portrait img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
  margin-bottom: 10px;
  transition: transform .3s ease, box-shadow .3s ease;
}
.team-portrait:hover img{ transform: scale(1.03); box-shadow: var(--shadow-md); }
.team-portrait figcaption{
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-navy);
}

/* ---------- 12c. Author card (Trương Hữu Tiến) ---------- */
.author-card{
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 760px;
  margin: 40px auto 0;
  padding: 28px 24px 24px;
  background: linear-gradient(180deg, var(--color-bg-navy-soft) 0%, #fff 120px);
  border: 1px solid var(--color-border);
  border-top: 3px solid var(--color-orange);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
}
.author-card-media{
  flex: 0 0 auto;
  width: 132px;
  margin: 0 auto;
}
.author-card-media img{
  display: block;
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: cover;
  border-radius: 50%;
  border: 3px solid #fff;
  box-shadow: var(--shadow-md);
}
.author-card-body{ text-align: center; }
.author-card-label{
  display: inline-block;
  font-size: 12.5px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .03em;
  color: var(--color-orange);
  margin-bottom: 4px;
}
.author-card-name{
  font-size: 19px;
  font-weight: 800;
  color: var(--color-navy);
  margin-bottom: 2px;
}
.author-card-role{
  font-size: 14px;
  color: var(--color-text-muted);
  margin-bottom: 10px;
}
.author-card-bio{
  font-size: 14.5px;
  color: var(--color-text);
  margin-bottom: 14px;
}
.author-card-badges{
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 14px;
}
.author-badge{
  font-size: 12px;
  font-weight: 600;
  color: var(--color-navy);
  background: var(--color-bg-navy-soft);
  padding: 4px 10px;
  border-radius: 999px;
}
.author-card-updated{
  font-size: 12.5px;
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ---------- 13. Pricing ---------- */
.pricing-section{
  background: linear-gradient(160deg, var(--color-navy) 0%, var(--color-navy-dark) 100%);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 52px 28px;
  text-align: center;
}
.pricing-section .section-eyebrow{ background: rgba(255,255,255,0.15); color: #fff; }
.price-highlight{
  font-size: clamp(26px, 5vw, 40px);
  font-weight: 800;
  color: #fff;
  line-height: 1.25;
  margin: 6px 0 10px;
}
.price-highlight .price-amount{ color: var(--color-orange); }
.pricing-section .price-note{
  color: rgba(255,255,255,0.75);
  font-size: 15.5px;
  margin-bottom: 28px;
}

/* ---------- 13b. Final CTA ---------- */
.final-cta{ padding-top: 0; }
.final-cta-box{
  background: linear-gradient(135deg, var(--color-orange) 0%, var(--color-orange-dark) 100%);
  border-radius: var(--radius-lg);
  padding: 52px 28px;
  text-align: center;
  color: #fff;
}
.final-cta-box .section-eyebrow{ background: rgba(255,255,255,0.2); color: #fff; }
.final-cta-box h2{ color: #fff; font-size: clamp(24px, 4vw, 32px); font-weight: 800; margin: 10px 0 12px; }
.final-cta-box p{ font-size: 16px; color: rgba(255,255,255,0.92); max-width: 560px; margin: 0 auto 26px; }
.final-cta-actions{ display: flex; flex-wrap: wrap; justify-content: center; gap: 14px; }
.final-cta-box .btn-primary{ background: #fff; color: var(--color-orange-dark); box-shadow: var(--shadow-md); }
.final-cta-box .btn-primary:hover{ background: rgba(255,255,255,0.9); }
.final-cta-box .btn-outline-light:hover{ background: rgba(255,255,255,0.18); }

/* ---------- 13c. Quy trình sản xuất thật (3 ảnh minh chứng) ---------- */
.process-photos{
  display: grid; grid-template-columns: 1fr; gap: 14px;
  margin-bottom: 32px;
}
.process-photo{
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  background: var(--color-bg-alt);
  text-align: center;
}
.process-photo img{ width: 100%; height: 220px; object-fit: cover; display: block; }
.process-photo figcaption{
  padding: 10px; font-size: 14px; font-weight: 700; color: var(--color-navy);
  background: #fff;
}

/* ---------- 14. Gallery ---------- */
.gallery-grid{
  display: grid; grid-template-columns: repeat(2, 1fr); gap: 12px;
}
.gallery-item{
  border-radius: var(--radius-md);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--color-bg-alt);
  cursor: zoom-in;
  position: relative;
}
.gallery-item img{ width: 100%; height: 100%; object-fit: cover; transition: transform .3s ease; }
.gallery-item:hover img{ transform: scale(1.03); }

.lightbox{
  position: fixed; inset: 0; z-index: 200;
  background: rgba(10,14,20,0.92);
  display: none; align-items: center; justify-content: center;
  padding: 24px;
}
.lightbox.is-open{ display: flex; }
.lightbox img{ max-width: 100%; max-height: 86vh; border-radius: var(--radius-sm); }
.lightbox-close{
  position: absolute; top: 18px; right: 18px;
  width: 44px; height: 44px; border-radius: 50%;
  background: rgba(255,255,255,0.12); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 22px;
}
.lightbox-caption{
  position: absolute; bottom: 24px; left: 0; right: 0;
  text-align: center; color: rgba(255,255,255,0.8); font-size: 14px;
}
.lightbox-nav{
  position: absolute; top: 50%; transform: translateY(-50%);
  width: 48px; height: 48px; border-radius: 50%;
  background: rgba(255,255,255,0.12); color: #fff;
  display: flex; align-items: center; justify-content: center;
  transition: background .2s ease;
}
.lightbox-nav:hover{ background: rgba(255,255,255,0.22); }
.lightbox-nav[hidden]{ display: none; }
.lightbox-prev{ left: 14px; }
.lightbox-next{ right: 14px; }
@media (max-width: 640px){
  .lightbox-nav{ width: 40px; height: 40px; }
  .lightbox-prev{ left: 6px; }
  .lightbox-next{ right: 6px; }
}

/* ---------- 15. FAQ ---------- */
.faq-list{ max-width: 820px; margin: 0 auto; }
.faq-item{
  border-bottom: 1px solid var(--color-border);
}
.faq-question{
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: 16px;
  padding: 20px 4px;
  text-align: left;
  font-weight: 700; font-size: 16.5px; color: var(--color-navy);
  transition: color .2s ease;
}
.faq-question .faq-icon{
  flex-shrink: 0;
  width: 26px; height: 26px;
  border-radius: 50%;
  border: 2px solid var(--color-navy);
  display: flex; align-items: center; justify-content: center;
  transition: transform .25s ease, background .25s ease;
  position: relative;
}
.faq-question .faq-icon::before, .faq-question .faq-icon::after{
  content: ""; position: absolute; background: var(--color-navy);
  transition: transform .25s ease, opacity .25s ease;
}
.faq-question .faq-icon::before{ width: 10px; height: 2px; }
.faq-question .faq-icon::after{ width: 2px; height: 10px; }
.faq-item.is-open .faq-icon::after{ transform: rotate(90deg); opacity: 0; }
.faq-item.is-open .faq-question{ color: var(--color-orange-dark); }
.faq-item.is-open .faq-icon{ border-color: var(--color-orange); }
.faq-item.is-open .faq-icon::before{ background: var(--color-orange); }
.faq-answer{
  max-height: 0;
  overflow: hidden;
  transition: max-height .3s ease, padding .3s ease;
}
.faq-answer p{ padding: 0 4px 20px; color: var(--color-text-muted); font-size: 15.5px; }

/* ---------- 15b. Reviews ---------- */
.review-grid{
  display: grid; grid-template-columns: 1fr; gap: 20px;
  max-width: 900px; margin: 0 auto;
}
.review-card{
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px 24px;
  box-shadow: var(--shadow-sm);
}
.review-card blockquote{
  font-size: 16.5px;
  color: var(--color-text);
  line-height: 1.6;
  margin-bottom: 20px;
}
.review-card figcaption{
  display: flex; align-items: center; gap: 12px;
}
.review-card figcaption img{
  width: 52px; height: 52px; border-radius: 50%; object-fit: cover; flex-shrink: 0;
}
.review-name{ display: block; font-weight: 800; color: var(--color-navy); font-size: 15px; }
.review-role{ display: block; font-size: 13.5px; color: var(--color-text-muted); }

/* ---------- 16. Contact / Form ---------- */
.contact-section{ background: var(--color-bg); }
.contact-wrap{
  display: grid; grid-template-columns: 1fr; gap: 32px;
}
.contact-info{
  background: var(--color-navy);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 32px 26px;
}
.contact-info h3{ font-size: 20px; font-weight: 800; margin-bottom: 18px; }
.contact-info ul{ display: flex; flex-direction: column; gap: 16px; margin-bottom: 24px; }
.contact-info li{ display: flex; gap: 12px; align-items: flex-start; font-size: 16px; }
.contact-info li svg{ flex-shrink: 0; color: var(--color-orange); margin-top: 2px; }
.contact-info .hours{ color: rgba(255,255,255,0.75); font-size: 13.5px; }

.form-card{
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-md);
}
.form-card h3{ font-size: 20px; font-weight: 800; color: var(--color-navy); margin-bottom: 6px; }
.form-card > p{ color: var(--color-text-muted); font-size: 14px; margin-bottom: 22px; }
.form-row{
  display: grid;
  grid-template-columns: 1fr;
  gap: 0 16px;
}
.form-group{ margin-bottom: 18px; }
.form-group label{
  display: block; font-weight: 600; font-size: 14px; color: var(--color-text); margin-bottom: 7px;
}
.form-group .required{ color: var(--color-error); }
.form-group input, .form-group select, .form-group textarea{
  width: 100%;
  padding: 12px 14px;
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 15px;
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus{
  outline: none;
  border-color: var(--color-navy);
  box-shadow: 0 0 0 3px rgba(0,46,128,0.12);
}
.form-group textarea{ resize: vertical; min-height: 90px; }
.field-error{
  display: none;
  color: var(--color-error);
  font-size: 12.5px;
  margin-top: 6px;
}
.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea{ border-color: var(--color-error); }
.form-group.has-error .field-error{ display: block; }

.form-status{
  display: none;
  align-items: center; gap: 10px;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  font-size: 14.5px; font-weight: 600;
  margin-bottom: 18px;
}
.form-status.is-visible{ display: flex; }
.form-status.status-success{ background: #E6F6EA; color: var(--color-success); }
.form-status.status-error{ background: #FCE8E6; color: var(--color-error); }
.form-status.status-loading{ background: var(--color-bg-navy-soft); color: var(--color-navy); }

.spinner{
  width: 16px; height: 16px;
  border: 2.5px solid rgba(0,46,128,0.25);
  border-top-color: var(--color-navy);
  border-radius: 50%;
  animation: spin .7s linear infinite;
  flex-shrink: 0;
}
@keyframes spin{ to{ transform: rotate(360deg); } }

.demo-note{
  font-size: 12px; color: var(--color-text-muted);
  margin-top: 14px; text-align: center;
}

/* ---------- 17. Footer ---------- */
.site-footer{
  background: var(--color-navy-dark);
  color: rgba(255,255,255,0.8);
  padding: 44px 0 24px;
}
.footer-top{
  display: grid; grid-template-columns: 1fr; gap: 28px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-brand img{ width: auto; height: 32px; margin-bottom: 14px; }
.footer-brand p{ font-size: 14px; max-width: 340px; color: rgba(255,255,255,0.65); }
.footer-brand p strong{ color: rgba(255,255,255,0.92); }
.footer-tax{ font-size: 12.5px; color: rgba(255,255,255,0.5); margin-top: 8px; }
.footer-social{ display: flex; gap: 10px; margin-top: 18px; }
.footer-social a{
  width: 36px; height: 36px; border-radius: 50%;
  background: rgba(255,255,255,0.08); color: rgba(255,255,255,0.85);
  display: flex; align-items: center; justify-content: center;
  transition: background .2s ease, color .2s ease, transform .2s ease;
}
.footer-social a:hover{
  background: var(--color-orange); color: #fff; transform: translateY(-2px);
}
.footer-col h4{ color: #fff; font-size: 15px; font-weight: 700; margin-bottom: 14px; }
.footer-col ul{ display: flex; flex-direction: column; gap: 10px; }
.footer-col a, .footer-col li{ font-size: 14px; color: rgba(255,255,255,0.7); }
.footer-col a:hover{ color: #fff; }
.footer-contact li{ display: flex; gap: 10px; align-items: flex-start; margin-bottom: 10px; }
.footer-contact svg{ flex-shrink: 0; color: var(--color-orange); margin-top: 2px; }
.footer-bottom{
  padding-top: 20px;
  display: flex; flex-direction: column; gap: 8px;
  font-size: 12.5px; color: rgba(255,255,255,0.5);
  text-align: center;
}

/* Contact FAB stack (Messenger / Zalo / Hotline) */
.fab-stack{
  position: fixed; right: 18px; bottom: 18px;
  display: flex; flex-direction: column; gap: 12px;
  z-index: 96;
}
.fab{
  position: relative;
  width: 52px; height: 52px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: #fff;
  box-shadow: var(--shadow-md);
  transition: transform .15s ease, box-shadow .15s ease;
}
.fab:hover, .fab:focus-visible{ transform: scale(1.08); box-shadow: var(--shadow-lg); }
.fab-messenger{ background: linear-gradient(135deg, #00B2FF, #006AFF); }
.fab-zalo{ background: #0068FF; }
.fab-hotline{
  background: var(--color-orange);
}
.fab-tooltip{
  position: absolute;
  right: calc(100% + 12px); top: 50%;
  transform: translateY(-50%) translateX(6px);
  background: var(--color-navy-dark);
  color: #fff;
  font-size: 13px; font-weight: 600;
  white-space: nowrap;
  padding: 8px 14px;
  border-radius: 999px;
  opacity: 0; visibility: hidden;
  transition: opacity .15s ease, transform .15s ease, visibility .15s ease;
  pointer-events: none;
}
.fab:hover .fab-tooltip, .fab:focus-visible .fab-tooltip{
  opacity: 1; visibility: visible; transform: translateY(-50%) translateX(0);
}

/* Back to top */
.back-to-top{
  position: fixed; right: 18px; bottom: 210px;
  width: 46px; height: 46px; border-radius: 50%;
  background: var(--color-navy); color: #fff;
  display: flex; align-items: center; justify-content: center;
  box-shadow: var(--shadow-md);
  opacity: 0; visibility: hidden; transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease, visibility .2s ease;
  z-index: 90;
}
.back-to-top.is-visible{ opacity: 1; visibility: visible; transform: translateY(0); }

/* Mobile sticky CTA bar: chỉ hiện trên mobile/tablet, ẩn trên desktop
   (đã có FAB stack nổi ở góc phải cho desktop). */
.mobile-cta-bar{
  position: fixed; left: 0; right: 0; bottom: 0; z-index: 97;
  display: flex;
  background: #fff;
  box-shadow: 0 -4px 20px rgba(0,26,77,0.14);
  padding: 6px;
  gap: 6px;
  transition: transform .3s ease;
}
.mobile-cta-bar.is-hidden{ transform: translateY(100%); }
.mobile-cta-item{
  flex: 1;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 3px;
  padding: 8px 4px;
  border-radius: var(--radius-sm);
  font-size: 12px; font-weight: 700;
  color: var(--color-navy);
}
.mobile-cta-item svg{ flex-shrink: 0; }
.mobile-cta-primary{
  background: var(--color-orange);
  color: #fff;
}
/* Ẩn FAB stack nổi trên mobile vì đã có thanh sticky đáy màn hình
   thay thế chức năng tương đương, tránh trùng lặp UI. */
@media (max-width: 1023px){
  .fab-stack{ display: none; }
  body{ padding-bottom: 62px; }
}
@media (min-width: 1024px){
  .mobile-cta-bar{ display: none; }
}

/* ---------- 18. Responsive breakpoints ---------- */
/* 390px - slightly larger phones: default styles above already fit */

@media (min-width: 560px){
  .product-grid{ grid-template-columns: repeat(2, 1fr); }
  .technique-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 640px){
  .gallery-grid{ grid-template-columns: repeat(3, 1fr); }
  .usp-grid{ grid-template-columns: repeat(3, 1fr); }
  .persona-grid{ grid-template-columns: repeat(2, 1fr); }
  .process-photos{ grid-template-columns: repeat(3, 1fr); }
  .review-grid{ grid-template-columns: repeat(2, 1fr); }
  .form-row{ grid-template-columns: 1fr 1fr; }
}

@media (min-width: 768px){
  section{ padding: 72px 0; }
  .hero{ padding: 64px 0 76px; }
  .trust-bar ul{ flex-direction: row; justify-content: center; flex-wrap: wrap; gap: 24px 28px; }
  .hero-ctas{ flex-wrap: nowrap; }
  .contact-wrap{ grid-template-columns: 0.85fr 1.15fr; }
  .author-card{ flex-direction: row; align-items: flex-start; text-align: left; padding: 28px; }
  .author-card-media{ width: 150px; margin: 0; }
  .author-card-body{ text-align: left; }
  .author-card-badges{ justify-content: flex-start; }
  .footer-top{ grid-template-columns: 1.3fr repeat(3, 1fr); }
  .process-list{ grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px){
  .main-nav{ display: block; }
  .nav-toggle{ display: none; }
  .mobile-nav{ display: none !important; }

  .hero .container{ flex-direction: row; align-items: center; }
  .hero-copy{ flex: 0 0 45%; max-width: 45%; }
  .hero-media{ flex: 0 0 52%; max-width: 52%; max-height: 520px; }

  .product-grid{ grid-template-columns: repeat(4, 1fr); }
  .persona-grid{ grid-template-columns: repeat(3, 1fr); }
  .gallery-grid{ grid-template-columns: repeat(4, 1fr); }
  .process-list{ grid-template-columns: repeat(5, 1fr); }
  .process-list::before{
    content: "";
    position: absolute;
    top: 41px;
    left: 10%;
    right: 10%;
    height: 2px;
    background: var(--color-border);
    z-index: 0;
  }
  .process-step{ flex-direction: column; text-align: center; position: relative; z-index: 1; }
  .process-step .step-num{ margin: 0 auto; }
  .usp-grid{ grid-template-columns: repeat(6, 1fr); }
  .technique-grid{ grid-template-columns: repeat(4, 1fr); }
}

@media (min-width: 1280px){
  .header-phone{ display: flex; }
  .main-nav ul{ gap: 18px; }
  .main-nav a{ font-size: 14px; }
}

@media (min-width: 1440px){
  .container{ padding: 0 32px; }
}