/* =========================================================
   Theme application layer
   Tokens được inject bởi brand.js (sync) - file này KHÔNG khai báo token.
   Chỉ chứa: base reset, component styles, utilities.
   ========================================================= */

/* ========== Base ========== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-body);
  font-size:var(--fs-body);
  color:var(--color-text);
  background:var(--body-bg);
  line-height:1.65;
  min-height:100vh;
  transition:background .4s ease,color .3s ease;
}
h1,h2,h3,h4,h5,h6{
  font-family:var(--font-display);
  color:var(--color-text);
  line-height:1.15;
  letter-spacing:-.02em;
  font-weight:700;
  text-wrap:balance;
}
h1{font-size:var(--fs-h1)}
h2{font-size:var(--fs-h2)}
h3{font-size:var(--fs-h3)}
h4{font-size:var(--fs-h4)}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{
  width:var(--container);
  max-width:var(--layout-max);
  margin-inline:auto;
  padding-inline:var(--pad-x);
}
.container.page-hero-inner,
.page-hero .container{
  padding-inline:var(--pad-x);
}
.content,
.content-wrap,
.post-wrap,
.post-mast-inner,
.entry-content,
.post-body,
.article-body{
  width:100%;
  max-width:var(--content);
  margin-inline:auto;
}
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:2000;background:var(--color-brand);pointer-events:none;transition:width .05s linear;will-change:width}
@media (prefers-reduced-motion:reduce){.read-progress{transition:none}}
.section{padding:var(--space-section) 0}

/* ========== Page hero (shared shell) ========== */
.page-hero{
  position:relative;
  overflow:hidden;
  isolation:isolate;
  padding:var(--space-section) 0 var(--space-block);
}
.page-hero-bg{
  position:absolute;
  inset:0;
  z-index:-1;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  gap:.5rem;
  align-items:center;
  font-size:.85rem;
  margin-bottom:1rem;
  color:var(--color-text-inverse-muted);
}
.breadcrumb a:hover{color:var(--color-brand-muted)}
.breadcrumb span{opacity:.6}
.page-hero h1{
  margin:0 0 1rem;
  font-weight:800;
  line-height:1.05;
}
.page-hero p,
.page-hero .lead{
  margin:0;
  font-size:clamp(1rem,2vw,1.18rem);
  max-width:42rem;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:.75rem}
.page-hero .hero-actions{margin-top:1.5rem}
.cta-inner .hero-actions{justify-content:center;margin-top:0}

/* Listing heroes (dich-vu / blog / chu-de) - no side card */
.page-hero-inner:not(:has(.hero-card)){
  padding-block:4.25rem 3.25rem;
  max-width:46rem;
}
@media (min-width:901px){
  .page-hero-inner:not(:has(.hero-card)){
    padding-block:5.75rem 4.5rem;
    max-width:58rem;
  }
  .page-hero:not(:has(.hero-card)) .breadcrumb{margin-bottom:1.35rem}
  .page-hero:not(:has(.hero-card)) .eyebrow{margin-bottom:.85rem}
  .page-hero:not(:has(.hero-card)) h1{
    margin:0 0 1.35rem;
    line-height:1.12;
    max-width:14em;
  }
  .page-hero:not(:has(.hero-card)) p,
  .page-hero:not(:has(.hero-card)) .lead{
    max-width:48rem;
    line-height:1.65;
  }
  .page-hero:not(:has(.hero-card)) .hero-actions{
    margin-top:2rem;
    gap:1rem;
  }
}

section.hook{padding-top:45px;padding-bottom:45px}
section.hook .container{margin-left:0;margin-right:0}
.section-head{max-width:52rem;margin-bottom:var(--space-block)}
.section-head h2,.cta-inner h2{
  font-family:var(--font-display);
  letter-spacing:-.02em;
  line-height:1.15;
  margin:0 0 .55rem;
  font-size:var(--fs-h2);
  max-width:none;
}
.section-head p{margin:0;max-width:52rem;text-wrap:pretty}

/* Text roles */
.eyebrow{
  display:inline-block;
  margin:0 0 .6rem;
  font-size:.8rem;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-weight:600;
  color:var(--color-text-brand);
}
.section-head p,
.cta-inner p,
.footer-desc,
.post-meta,
.post-excerpt,
.empty-note,
.service-block p,
.svc-card p,
.feature p,
.why-card span,
.step span,
.pkg .desc,
.testi .role,
.group p,
.blog-teaser .blog-excerpt,
.client-name{color:var(--color-text-secondary)}
.topbar,
.footer-bottom,
.text-faint{color:var(--color-text-tertiary)}
a:hover{color:var(--color-text-brand)}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:.4rem;
  padding:.85rem 1.35rem;border-radius:999px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn:hover{transform:translateY(-2px)}
.btn-hotline{padding:.6rem 1rem;font-size:.9rem}

/* ========== Bands ========== */
.band-default{background:var(--color-bg);color:var(--color-text)}
.band-soft,
.groups,
.included,
.tint{background:var(--color-bg-subtle);color:var(--color-text)}
.included::before,
.tint::before{display:none !important}
.band-deep{background:var(--color-bg-inverse);color:var(--color-text-inverse)}
.band-deep h1,.band-deep h2,.band-deep h3,.band-deep strong{color:var(--color-text-inverse)}
.band-deep .section-head p{color:var(--color-text-inverse-muted)}
.band-deep .eyebrow{color:var(--color-brand-muted)}

/* ========== Cards (elevated) - KHÔNG áp cho .hero-card ========== */
.service-block,
.svc-card,
.feature,
.testi,
.pkg,
.faq,
.benefit,
.adtype,
.pain,
.rel-card,
.side-card,
.post-tile,
.blog-aside-card,
.blog-teaser,
.client,
.contact-card,
.check-card{
  background:var(--color-bg-elevated);
  border:1px solid var(--color-border);
  color:var(--color-text);
}
.chip-list span,
.chip-list a{
  background:var(--color-bg-elevated);
  border-color:var(--color-border);
  color:var(--color-text);
}

/* ========== Inverse contexts: hero / trust / why ========== */
.hero,
.page-hero:has(.page-hero-bg),
.trust,
.about-trust,
.why,
.process,
.site-footer,
.topbar{
  color:var(--color-text-inverse);
}
.hero h1,
.hero h2,
.hero h3,
.hero .hero-brand,
.page-hero:has(.page-hero-bg) h1,
.page-hero:has(.page-hero-bg) h2,
.page-hero:has(.page-hero-bg) h3,
.trust-num,
.why h1,
.why h2,
.why h3,
.why-card strong,
.process h2,.process strong,
.band-deep h1,.band-deep h2,.band-deep h3{
  color:var(--color-text-inverse) !important;
}
.hero .hero-lead,
.hero .hero-card p,
.page-hero:has(.page-hero-bg) p,
.page-hero:has(.page-hero-bg) .hero-mini .lbl,
.trust-label,
.why .section-head p,
.why-card span,
.process .section-head p{
  color:var(--color-text-inverse-muted) !important;
}
.hero .eyebrow,
.page-hero:has(.page-hero-bg) .eyebrow{
  color:rgba(250,250,249,.78) !important;
}
.why .eyebrow,
.band-deep .eyebrow{
  color:var(--color-brand-muted) !important;
}
.hero .hero-card .k,
.page-hero:has(.page-hero-bg) .hero-card .k,
.page-hero:has(.page-hero-bg) .hero-mini .num,
.why-card .n{
  color:var(--color-brand-muted) !important;
}

/* Hero background từ token */
.hero-bg,
.page-hero-bg{
  background:var(--color-hero-overlay),var(--color-hero-base) !important;
}

/* Hero cards = glass trên nền inverse - không dùng elevated trắng */
.hero .hero-card,
.page-hero .hero-card{
  background:var(--color-bg-glass) !important;
  border:1px solid rgba(255,255,255,.16) !important;
  color:var(--color-text-inverse) !important;
  backdrop-filter:blur(8px);
}
.hero .hero-card h3,
.page-hero .hero-card h3{
  color:var(--color-text-inverse) !important;
}
.hero .btn-ghost,
.page-hero:has(.page-hero-bg) .btn-ghost{
  border-color:rgba(250,250,249,.4);
  color:var(--color-text-inverse);
}

.trust,
.about-trust,
.why{
  background:var(--color-bg-inverse);
}

/* ========== CTA band ========== */
.cta-inner{
  padding:clamp(1.5rem,3.5vw,2.15rem);
  border-radius:var(--radius);
  text-align:center;
  background:linear-gradient(135deg,var(--color-brand-subtle),transparent 55%),var(--cta-bg);
  border:1px solid var(--color-border);
  box-shadow:var(--color-shadow);
}
.cta-inner h2{max-width:none;margin-inline:auto}
.cta-inner p{max-width:42rem;margin:0 auto 1.1rem;text-wrap:pretty}
.cta-band{padding-block:var(--space-section)}
.btn-primary{
  background:linear-gradient(135deg,var(--color-brand),var(--color-brand-muted));
  color:var(--text-on-accent);
  box-shadow:0 10px 28px rgba(234,88,12,.28);
}
.btn-primary:hover,
a.btn-primary:hover{color:var(--text-on-accent)}
.btn-ghost{background:transparent;border-color:var(--color-border);color:var(--color-text)}
.btn-ghost:hover,
a.btn-ghost:hover{color:var(--color-text)}
.btn-dark{background:var(--color-bg-inverse);color:var(--color-text-inverse)}
.btn-dark:hover,
a.btn-dark:hover{color:var(--color-text-inverse)}
.btn-hotline{background:var(--color-bg-inverse);color:var(--color-text-inverse)}

[data-theme="dark"] .btn-ghost{border-color:var(--color-border-strong)}
[data-theme="dark"] .btn-hotline{
  background:var(--color-brand-subtle);
  border-color:rgba(249,115,22,.45);
  color:var(--color-text-brand);
}
[data-theme="dark"] .btn-hotline:hover{
  background:rgba(249,115,22,.24);
  color:var(--color-text);
}
[data-theme="dark"] .btn-dark{
  background:var(--color-bg-elevated);
  border-color:var(--color-border);
  color:var(--color-text);
}
[data-theme="dark"] .btn-dark:hover,
[data-theme="dark"] a.btn-dark:hover{color:var(--color-text)}
[data-theme="dark"] .field input,
[data-theme="dark"] .field select,
[data-theme="dark"] .field textarea{
  background:var(--color-bg-elevated);
  border-color:var(--color-border);
  color:var(--color-text);
}
[data-theme="dark"] .chip-list span,
[data-theme="dark"] .chip-list a,
[data-theme="dark"] .client{
  background:var(--color-bg-elevated);
  color:var(--color-text-secondary);
  border-color:var(--color-border);
}

/* Reveal */
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .7s ease,transform .7s ease}
[data-reveal].is-visible{opacity:1;transform:none}

/* ========== Responsive: page-hero & hero-card ========== */
@media (max-width:900px){
  .page-hero-inner{
    grid-template-columns:1fr;
    gap:1.25rem;
    padding-block:2.5rem 2rem;
  }
  .hero-card{
    max-width:480px;
  }
}
@media (max-width:560px){
  .page-hero-inner{
    padding-block:1.5rem 1.25rem;
  }
  .page-hero h1{
    font-size:clamp(1.6rem,6vw,2.2rem);
  }
  .hero-card{
    max-width:100%;
    padding:1rem 1.05rem;
  }
  .hero-card h3{
    font-size:1rem;
  }
  .hero-card li{
    font-size:.85rem;
  }
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  [data-reveal]{opacity:1;transform:none}
}