/*
Theme Name: Teexcel
Theme URI: https://teexcel.com
Author: Teexcel
Description: Theme B2B cho Teexcel - Thiết kế Website, SEO, Digital Marketing, Phần mềm theo yêu cầu, Tư vấn chuyển đổi AI. Ngôn ngữ thị giác SaaS mềm mại: bo tròn, shadow mềm có màu, gradient tím-xanh, pastel. Chuyển động theo nguyên tắc design engineering của Emil Kowalski (Vercel/Linear) và Apple HIG.
Version: 3.1
Requires at least: 6.0
Requires PHP: 8.0
Text Domain: teexcel
*/

/* ===== Design tokens ===== */
:root{
  --color-primary: #6366F1;          /* indigo mềm - accent chính */
  --color-primary-dark: #4F46E5;
  --color-primary-50: #EEF0FF;
  --color-bg: #F8F8FC;               /* nền lavender rất nhạt */
  --color-surface: #FFFFFF;
  --color-border: #E7E6F5;
  --color-text: #201B36;             /* đen-tím mềm, không phải đen thuần */
  --color-text-muted: #6B6882;
  --color-cta: #FF6B4A;              /* cam san hô - điểm nhấn CTA ấm */
  --color-cta-dark: #E8512E;
  --color-success: #16B981;

  --radius-sm: 12px;
  --radius-md: 18px;
  --radius-lg: 26px;

  --gradient-primary: linear-gradient(135deg, #6366F1 0%, #8B5CF6 100%);
  --gradient-soft: linear-gradient(135deg, #EEF0FF 0%, #F6EEFF 100%);

  --shadow-sm: 0 2px 10px rgba(99,102,241,0.08);
  --shadow-md: 0 14px 30px rgba(99,102,241,0.14);
  --shadow-lg: 0 26px 60px rgba(99,102,241,0.18);

  --font-body: 'Inter', system-ui, -apple-system, sans-serif;
  --font-heading: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;

  /* Easing - cubic-bezier mạnh hơn easing mặc định của trình duyệt (theo skill emil-design-eng) */
  --ease-out: cubic-bezier(0.23, 1, 0.32, 1);
  --ease-in-out: cubic-bezier(0.77, 0, 0.175, 1);
  --ease-standard: cubic-bezier(0.4, 0, 0.2, 1);
}

*{ box-sizing: border-box; }
html{ scroll-behavior: smooth; }
body{
  margin:0; background: var(--color-bg); color: var(--color-text);
  font-family: var(--font-body); font-size:16px; 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; }
.container{ max-width: 1180px; margin:0 auto; padding: 0 20px; }

/* ===== Typography ===== */
h1,h2,h3,h4{ font-family: var(--font-heading); font-weight:700; color: var(--color-text); margin:0 0 0.5em; line-height:1.18; }
h1{ font-size: clamp(2rem, 4.2vw, 3.25rem); letter-spacing: -0.02em; line-height:1.1; }
h2{ font-size: clamp(1.55rem, 2.8vw, 2.25rem); letter-spacing: -0.015em; }
h3{ font-size: 1.18rem; letter-spacing: -0.005em; }
p{ margin:0 0 1em; color: var(--color-text-muted); }

/* ===== Buttons - bo tròn, gradient, nhấc nhẹ + glow khi hover, press feedback tức thời ===== */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  padding: 13px 26px; border-radius: 999px; font-weight:700; font-size:0.95rem;
  border:1.5px solid transparent; cursor:pointer;
  transition: transform 160ms var(--ease-out), background 160ms var(--ease-standard), box-shadow 220ms var(--ease-standard), color 160ms var(--ease-standard), border-color 160ms var(--ease-standard);
}
.btn:active{ transform: scale(0.97); }
.btn-primary{ background: var(--gradient-primary); color:#fff; box-shadow: var(--shadow-sm); }
.btn-outline{ background: transparent; color: var(--color-primary); border-color: var(--color-border); }
.btn-outline:hover{ background: var(--color-primary-50); border-color: var(--color-primary); }
.btn-white{ background:#fff; color: var(--color-primary); }
.btn-white:hover{ background: var(--color-primary-50); }
.btn-lg{ padding: 16px 32px; font-size: 1.02rem; }
.btn-block{ width:100%; }
@media (hover: hover) and (pointer: fine){
  .btn-primary:hover{ transform: translateY(-2px); box-shadow: var(--shadow-md); }
  .btn-white:hover{ transform: translateY(-2px); }
}

/* ===== Header ===== */
.site-header{
  position: sticky; top:0; z-index: 50;
  background: rgba(248,248,252,0.86); backdrop-filter: blur(16px) saturate(180%);
  border-bottom: 1px solid var(--color-border);
  transition: box-shadow 250ms var(--ease-standard);
}
.site-header.is-scrolled{ box-shadow: var(--shadow-sm); }
.site-header .container{ display:flex; align-items:center; justify-content:space-between; height:74px; gap: 12px; transition: height 250ms var(--ease-standard); }
.site-header.is-scrolled .container{ height:62px; }
.site-logo{ display:flex; align-items:center; gap:9px; font-family: var(--font-heading); font-weight:800; font-size:1.18rem; color: var(--color-text); flex-shrink:0; }
.site-logo .logo-mark{
  width:36px; height:36px; border-radius: var(--radius-sm); background: var(--gradient-primary);
  color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; font-size:0.95rem; flex-shrink:0;
}
.primary-menu{ display:flex; align-items:center; gap: 2px; flex-wrap:nowrap; list-style:none; margin:0; padding:0; }
.primary-menu > li{ position:relative; list-style:none; }
.primary-menu li a{
  display:block; padding: 9px 14px; border-radius: 999px; color: var(--color-text); font-weight:600; font-size:0.9rem;
  white-space:nowrap; transition: background 150ms var(--ease-standard), color 150ms var(--ease-standard);
}
@media (hover: hover) and (pointer: fine){
  .primary-menu li a:hover{ background: var(--color-primary-50); color: var(--color-primary); }
}
.header-cta{ display:flex; align-items:center; gap:10px; }
.header-cta .btn{ padding: 10px 18px; font-size: 0.88rem; white-space:nowrap; }
.header-actions{ display:flex; align-items:center; gap:12px; flex-shrink:0; }
.menu-toggle{ display:none; background:none; border:none; cursor:pointer; padding:8px; }
.menu-toggle span{ display:block; width:22px; height:2px; background: var(--color-text); margin:5px 0; border-radius:2px; }
.lang-switch{ display:flex; gap:4px; font-size:0.78rem; font-weight:700; list-style:none; }
.lang-switch a{ padding:5px 9px; border-radius:999px; color: var(--color-text-muted); }
.lang-switch a.active{ background: var(--color-primary-50); color: var(--color-primary); }

/* Mega menu - origin-aware, scale từ phía trigger (skill emil-design-eng + apple-design) */
.has-mega{ position:static; }
.mega-menu{
  display:block; position:absolute; top:100%; left:50%; transform: translateX(-50%) scale(0.96); transform-origin: top center;
  width: 760px; max-width: 92vw; margin-top: 12px; background:#fff; border:1px solid var(--color-border);
  border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); padding: 22px;
  opacity:0; visibility:hidden; pointer-events:none;
  transition: opacity 180ms var(--ease-out), transform 180ms var(--ease-out), visibility 180ms;
}
.has-mega:hover .mega-menu, .has-mega:focus-within .mega-menu{
  opacity:1; visibility:visible; pointer-events:auto; transform: translateX(-50%) scale(1);
}
.mega-grid{ display:grid; grid-template-columns: repeat(auto-fit, minmax(200px,1fr)); gap: 6px 18px; }
.mega-item{ display:flex; gap:12px; padding:12px; border-radius: var(--radius-sm); transition: background 140ms var(--ease-standard); }
@media (hover: hover) and (pointer: fine){ .mega-item:hover{ background: var(--color-primary-50); } }
.mega-item .ico{ width:38px; height:38px; border-radius: var(--radius-sm); background: var(--color-primary-50); color: var(--color-primary); display:flex; align-items:center; justify-content:center; font-size:1.15rem; flex-shrink:0; }
.mega-item strong{ display:block; font-size:0.86rem; color: var(--color-text); }
.mega-item span{ display:block; font-size:0.76rem; color: var(--color-text-muted); margin-top:2px; }
.mega-cta-row{ margin-top:14px; padding-top:14px; border-top:1px solid var(--color-border); display:flex; justify-content:space-between; align-items:center; gap:12px; flex-wrap:wrap; }
.mega-cta-row .phone{ font-size:0.86rem; font-weight:700; color: var(--color-primary); }

@media (max-width: 1000px){
  .menu-toggle{ display:block; order:-1; }
  .primary-menu{
    position:fixed; top:74px; left:0; right:0; bottom:0; background:#fff; flex-direction:column; align-items:stretch;
    padding:16px; gap:2px; overflow-y:auto; transform: translateX(-100%); transition: transform 280ms var(--ease-out);
  }
  .primary-menu.is-open{ transform: translateX(0); }
  .primary-menu li a{ padding:14px 14px; font-size:1rem; border-radius: var(--radius-sm); }
  .mega-menu{ position:static; width:100%; max-width:none; opacity:1; visibility:visible; pointer-events:auto; transform:none; box-shadow:none; border:none; display:none; margin-top:0; padding:8px 0 8px 14px; }
  .has-mega.is-open .mega-menu{ display:block; }
  .mega-grid{ grid-template-columns: 1fr; }
  .header-cta .btn-text-long{ display:none; }
}

/* ===== Hero ===== */
.hero{ padding: 76px 0 64px; overflow:hidden; position:relative; }
.hero::before{
  content:''; position:absolute; top:-160px; right:-160px; width:480px; height:480px; border-radius:50%;
  background: var(--gradient-soft); filter: blur(10px); z-index:-1;
}
.hero-grid{ display:grid; grid-template-columns: 1.05fr 0.85fr; gap: 48px; align-items:center; }
.badge{ display:inline-flex; align-items:center; gap:6px; padding:7px 16px; border-radius:999px; background: var(--color-primary-50); color: var(--color-primary); font-size:0.8rem; font-weight:700; margin-bottom:20px; }
.hero-lead{ font-size:1.1rem; max-width:560px; }
.hero-cta-row{ display:flex; gap:14px; flex-wrap:wrap; margin: 26px 0; }
.hero-trust{ display:flex; gap:20px; flex-wrap:wrap; }
.hero-trust-item{ display:flex; align-items:center; gap:7px; font-size:0.84rem; font-weight:600; color: var(--color-text-muted); }
.hero-trust-item .dot{ width:7px; height:7px; border-radius:50%; background: var(--color-success); }

.quote-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg); padding:30px; box-shadow: var(--shadow-lg); }
.quote-card .sub{ font-size:0.86rem; margin-bottom:18px; }
.quote-steps{ display:flex; flex-direction:column; gap:14px; margin-bottom:20px; }
.quote-step{ display:flex; gap:12px; align-items:flex-start; }
.quote-step .num{ width:26px; height:26px; border-radius:50%; background: var(--gradient-primary); color:#fff; font-size:0.78rem; font-weight:800; display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.quote-step strong{ display:block; font-size:0.9rem; }
.quote-step span{ font-size:0.8rem; color: var(--color-text-muted); }
@media (max-width: 900px){ .hero-grid{ grid-template-columns: 1fr; } }

/* ===== Stat bar ===== */
.stat-bar{ background: var(--gradient-primary); padding: 40px 0; border-radius: var(--radius-lg); }
.stat-grid{ display:grid; grid-template-columns: repeat(4, 1fr); gap:20px; text-align:center; }
.stat-item strong{ display:block; font-family: var(--font-heading); font-weight:800; font-size: 1.95rem; color:#fff; font-variant-numeric: tabular-nums; }
.stat-item span{ font-size:0.8rem; color: rgba(255,255,255,0.82); }
@media (max-width: 700px){ .stat-grid{ grid-template-columns: 1fr 1fr; row-gap:22px; } }

/* ===== Sections ===== */
.section{ padding: 76px 0; }
.section-tight{ padding: 44px 0; }
.section-alt{ background: var(--color-surface); }
.section-header{ max-width: 640px; margin: 0 0 42px; }
.section-header.center{ margin-left:auto; margin-right:auto; text-align:center; }
.eyebrow{ display:inline-flex; align-items:center; gap:6px; padding:5px 14px; border-radius:999px; background: var(--color-primary-50); color: var(--color-primary); font-weight:700; font-size:0.78rem; letter-spacing:0.02em; margin-bottom:14px; }

/* ===== Pillar cards (5 dịch vụ) ===== */
.pillar-grid{ display:grid; grid-template-columns: repeat(5, 1fr); gap: 18px; }
.pillar-card{
  display:block; background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg);
  padding: 28px 22px; box-shadow: var(--shadow-sm); transition: transform 220ms var(--ease-out), box-shadow 220ms var(--ease-out), border-color 220ms var(--ease-out);
  position:relative; overflow:hidden;
}
@media (hover: hover) and (pointer: fine){
  .pillar-card:hover{ transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: transparent; }
}
.pillar-card::before{ content:''; position:absolute; top:0; left:0; right:0; height:4px; background: var(--gradient-primary); transform: scaleX(0); transform-origin:left; transition: transform 280ms var(--ease-out); }
.pillar-card:hover::before{ transform: scaleX(1); }
.pillar-icon{ width:50px; height:50px; border-radius: var(--radius-sm); display:flex; align-items:center; justify-content:center; font-size:1.5rem; margin-bottom:18px; background: var(--color-primary-50); color: var(--color-primary); transition: background 220ms var(--ease-out), transform 220ms var(--ease-out); }
.pillar-card:hover .pillar-icon{ background: var(--gradient-primary); color:#fff; transform: scale(1.06); }
.pillar-card h3{ font-size:1.05rem; margin-bottom:8px; }
.pillar-card p{ font-size:0.86rem; margin-bottom:14px; }
.pillar-card .link{ font-weight:700; font-size:0.84rem; color: var(--color-primary); }
@media (max-width: 1100px){ .pillar-grid{ grid-template-columns: repeat(3,1fr); } }
@media (max-width: 700px){ .pillar-grid{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 480px){ .pillar-grid{ grid-template-columns: 1fr; } }

/* ===== USP grid ===== */
.usp-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; }
.usp-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); padding:26px; transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine){ .usp-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); } }
.usp-icon{ width:46px; height:46px; border-radius: var(--radius-sm); background: var(--color-primary-50); color: var(--color-primary); display:flex; align-items:center; justify-content:center; font-size:1.3rem; margin-bottom:16px; }
.usp-card h3{ font-size:1.02rem; margin-bottom:8px; }
.usp-card p{ font-size:0.86rem; }
@media (max-width: 900px){ .usp-grid{ grid-template-columns: 1fr; } }

/* ===== Process steps ===== */
.process-steps{ display:grid; grid-template-columns: repeat(4,1fr); gap:20px; counter-reset: step; }
.process-step{ position:relative; padding: 30px 20px 20px; background: var(--color-surface); border-radius: var(--radius-md); border:1px solid var(--color-border); }
.process-step::before{ counter-increment: step; content: counter(step); position:absolute; top:-15px; left:20px; width:32px; height:32px; border-radius:50%; background: var(--gradient-primary); color:#fff; font-weight:800; font-size:0.86rem; display:flex; align-items:center; justify-content:center; box-shadow: var(--shadow-sm); }
.process-step h3{ font-size:0.98rem; margin:10px 0 8px; }
.process-step p{ font-size:0.84rem; }
@media (max-width: 900px){ .process-steps{ grid-template-columns: 1fr 1fr; } }
@media (max-width: 560px){ .process-steps{ grid-template-columns: 1fr; } }

/* ===== Area / case grid ===== */
.area-grid{ display:grid; grid-template-columns: repeat(4,1fr); gap:18px; }
.area-card{ display:block; background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); padding:24px; text-align:center; transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine){ .area-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); } }
.area-pin{ font-size:1.6rem; margin-bottom:8px; }
.area-card h3{ font-size:0.98rem; margin-bottom:6px; }
.area-card .link{ font-size:0.8rem; font-weight:700; color: var(--color-primary); }
@media (max-width: 900px){ .area-grid{ grid-template-columns: 1fr 1fr; } }

.case-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; }
.case-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); overflow:hidden; transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine){ .case-card:hover{ transform: translateY(-5px); box-shadow: var(--shadow-lg); } }
.case-card .thumb{ display:flex; align-items:center; justify-content:center; aspect-ratio:16/10; background: var(--color-primary-50); font-size:2rem; overflow:hidden; }
.case-card .thumb img{ width:100%; height:100%; object-fit:cover; }
.case-card-body{ padding:20px; }
.case-tags{ display:flex; gap:6px; flex-wrap:wrap; margin-bottom:8px; }
.case-card h3{ font-size:1rem; margin-bottom:6px; }
.case-card p{ font-size:0.84rem; margin:0; }
@media (max-width: 900px){ .case-grid{ grid-template-columns: 1fr; } }
.case-filter{ display:flex; gap:8px; flex-wrap:wrap; margin-bottom:30px; }
.case-filter a{ padding:8px 16px; border-radius:999px; border:1px solid var(--color-border); font-size:0.84rem; font-weight:600; color: var(--color-text-muted); transition: background 140ms var(--ease-standard), color 140ms var(--ease-standard); }
.case-filter a.active, .case-filter a:hover{ background: var(--color-primary); color:#fff; border-color: var(--color-primary); }

/* ===== Badges ===== */
.badge-outline{ background:transparent; border:1px solid var(--color-border); color: var(--color-text-muted); }

/* ===== Pricing ===== */
.pricing-cards{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; }
.pricing-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg); padding:30px; transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine){ .pricing-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); } }
.pricing-card.featured{ border-color: var(--color-primary); box-shadow: var(--shadow-md); position:relative; background: var(--gradient-soft); }
.pricing-card.featured::before{ content:'Phổ biến nhất'; position:absolute; top:-13px; right:22px; background: var(--gradient-primary); color:#fff; font-size:0.7rem; font-weight:800; padding:5px 14px; border-radius:999px; }
.pricing-card h3{ font-size:1.1rem; margin-bottom:8px; }
.pricing-card .price{ font-family: var(--font-heading); font-size:1.6rem; font-weight:800; color: var(--color-primary); margin-bottom:12px; }
.pricing-card .price small{ font-size:0.7rem; font-weight:600; color: var(--color-text-muted); }
.pricing-card .desc{ font-size:0.84rem; margin-bottom:18px; }
.pricing-card ul{ display:flex; flex-direction:column; gap:10px; margin:0 0 22px; }
.pricing-card li{ font-size:0.86rem; color: var(--color-text); display:flex; gap:8px; align-items:flex-start; }
.pricing-card li::before{ content:'✓'; color: var(--color-success); font-weight:800; flex-shrink:0; }
.pricing-note{ font-size:0.82rem; color: var(--color-text-muted); }
@media (max-width: 900px){ .pricing-cards{ grid-template-columns:1fr; } }

/* ===== FAQ ===== */
.faq-list{ display:flex; flex-direction:column; gap:10px; }
.faq-item{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); padding: 18px 22px; }
.faq-item summary{ cursor:pointer; font-weight:700; font-size:0.94rem; list-style:none; display:flex; justify-content:space-between; align-items:center; gap:12px; }
.faq-item summary::-webkit-details-marker{ display:none; }
.faq-item summary::after{ content:'+'; font-size:1.3rem; color: var(--color-primary); transition: transform 220ms var(--ease-out); flex-shrink:0; }
.faq-item[open] summary::after{ transform: rotate(45deg); }
.faq-body{ font-size:0.88rem; color: var(--color-text-muted); margin-top:14px; }

/* ===== Testimonials ===== */
.testimonial-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); padding:28px; box-shadow: var(--shadow-sm); height:100%; }
.testimonial-card .stars{ color:#F5A623; letter-spacing:2px; margin-bottom:14px; }
.testimonial-card p{ font-size:0.96rem; color: var(--color-text); margin-bottom:18px; }
.testimonial-person{ display:flex; align-items:center; gap:12px; }
.testimonial-avatar{ width:42px; height:42px; border-radius:50%; background: var(--gradient-primary); color:#fff; display:flex; align-items:center; justify-content:center; font-weight:800; flex-shrink:0; }
.testimonial-person strong{ display:block; font-size:0.9rem; }
.testimonial-person span{ font-size:0.8rem; color: var(--color-text-muted); }
.testimonial-swiper{ padding-bottom:46px; }
.testimonial-swiper .swiper-slide{ height:auto; }
.testimonial-swiper .swiper-pagination-bullet{ background: var(--color-primary); opacity:.3; }
.testimonial-swiper .swiper-pagination-bullet-active{ opacity:1; }

/* ===== Blog ===== */
.blog-grid{ display:grid; grid-template-columns: repeat(3,1fr); gap:22px; }
.blog-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); overflow:hidden; transition: transform 200ms var(--ease-out), box-shadow 200ms var(--ease-out); }
@media (hover: hover) and (pointer: fine){ .blog-card:hover{ transform: translateY(-4px); box-shadow: var(--shadow-md); } }
.blog-card img{ aspect-ratio:16/10; object-fit:cover; }
.blog-card-body{ padding:20px; }
.blog-card .cat{ display:inline-block; font-size:0.72rem; font-weight:700; color: var(--color-primary); text-transform:uppercase; letter-spacing:0.04em; margin-bottom:8px; }
.blog-card h3{ font-size:1rem; margin-bottom:8px; }
.blog-card p{ font-size:0.84rem; }
.blog-card .meta{ font-size:0.76rem; color: var(--color-text-muted); }
@media (max-width: 900px){ .blog-grid{ grid-template-columns:1fr; } }

/* ===== CTA band ===== */
.cta-band{ background: var(--gradient-primary); border-radius: var(--radius-lg); padding: 52px 40px; text-align:center; color:#fff; box-shadow: var(--shadow-lg); }
.cta-band h2{ color:#fff; margin-bottom:10px; }
.cta-band p{ color: rgba(255,255,255,0.85); max-width:520px; margin:0 auto 26px; }
.btn-row{ display:flex; gap:14px; justify-content:center; flex-wrap:wrap; }

/* ===== Page hero / prose ===== */
.page-hero{ background: var(--color-surface); border-bottom:1px solid var(--color-border); padding: 46px 0; }
.breadcrumb{ font-size:0.82rem; color: var(--color-text-muted); margin-bottom:14px; }
.breadcrumb a{ color: var(--color-text-muted); }
.breadcrumb a:hover{ color: var(--color-primary); }
.page-hero .lead{ font-size:1.02rem; max-width:620px; margin:12px 0 0; }
.prose{ max-width: 760px; }
.prose h2{ margin-top:1.6em; }
.prose h3{ margin-top:1.3em; font-size:1.05rem; }
.prose ul, .prose ol{ margin:0 0 1.2em; padding-left:1.4em; color: var(--color-text-muted); list-style:revert; }
.prose ul{ list-style:disc; }
.prose ol{ list-style:decimal; }
.prose li{ margin-bottom:0.5em; }
.prose a{ text-decoration:underline; text-underline-offset:2px; color: var(--color-primary); }
.content-wrap{ padding:58px 0; }

/* ===== Contact ===== */
.contact-grid{ display:grid; grid-template-columns: 1fr 1fr; gap:40px; align-items:start; }
.contact-info-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-md); padding:28px; box-shadow: var(--shadow-sm); }
.contact-info-row{ display:flex; gap:14px; padding:14px 0; border-bottom:1px solid var(--color-border); }
.contact-info-row:last-child{ border-bottom:none; }
.contact-info-row .icon{ width:40px; height:40px; border-radius: var(--radius-sm); background: var(--color-primary-50); color: var(--color-primary); display:flex; align-items:center; justify-content:center; flex-shrink:0; }
.map-embed{ width:100%; aspect-ratio:4/3; border-radius: var(--radius-md); border:1px solid var(--color-border); overflow:hidden; }
.form-card{ background: var(--color-surface); border:1px solid var(--color-border); border-radius: var(--radius-lg); padding:28px; box-shadow: var(--shadow-sm); }
.contact-form, .form-card form{ display:flex; flex-direction:column; gap:14px; }
.form-row label{ display:block; font-size:0.84rem; font-weight:700; margin-bottom:6px; }
.form-row input, .form-row select, .form-row textarea{
  width:100%; padding:11px 14px; border:1px solid var(--color-border); border-radius: var(--radius-sm); font-family:inherit; font-size:0.92rem;
  transition: border-color 150ms var(--ease-standard), box-shadow 150ms var(--ease-standard);
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus{ outline:none; border-color: var(--color-primary); box-shadow: 0 0 0 4px var(--color-primary-50); }
.form-note{ font-size:0.78rem; color: var(--color-text-muted); }
.form-success{ background: #ECFDF5; color: #047857; border:1px solid #A7F3D0; border-radius: var(--radius-sm); padding:14px 18px; margin-bottom:18px; font-weight:600; font-size:0.9rem; }
.form-error{ background: #FFF1EE; color: var(--color-cta-dark); border:1px solid #FFD2C4; border-radius: var(--radius-sm); padding:14px 18px; margin-bottom:18px; font-weight:600; font-size:0.9rem; }
@media (max-width: 900px){ .contact-grid{ grid-template-columns:1fr; } }

/* ===== Footer ===== */
.site-footer{ background: #15122A; color: rgba(255,255,255,0.68); padding: 58px 0 24px; margin-top:64px; border-radius: var(--radius-lg) var(--radius-lg) 0 0; }
.footer-grid{ display:grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap:32px; margin-bottom:38px; }
.footer-logo{ font-family: var(--font-heading); font-weight:800; font-size:1.2rem; color:#fff; }
.footer-desc{ font-size:0.86rem; margin-top:12px; }
.footer-col h4{ color:#fff; font-size:0.86rem; text-transform:uppercase; letter-spacing:0.04em; margin-bottom:16px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:0.86rem; color: rgba(255,255,255,0.65); transition: color 140ms var(--ease-standard); }
.footer-col a:hover{ color:#fff; }
.footer-bottom{ border-top:1px solid rgba(255,255,255,0.12); padding-top:22px; display:flex; justify-content:space-between; flex-wrap:wrap; gap:10px; font-size:0.8rem; }
@media (max-width: 900px){ .footer-grid{ grid-template-columns: 1fr 1fr; } }

.mobile-sticky-cta{ display:none; }
@media (max-width: 760px){
  .mobile-sticky-cta{
    display:flex; gap:10px; position:fixed; bottom:0; left:0; right:0; z-index:60;
    background:#fff; padding:10px 16px; border-top:1px solid var(--color-border); box-shadow: 0 -4px 16px rgba(0,0,0,0.06);
  }
  .mobile-sticky-cta .btn{ flex:1; padding:12px; font-size:0.86rem; }
  body{ padding-bottom:64px; }
}

.floating-actions{ position:fixed; right:20px; bottom:88px; z-index:55; display:flex; flex-direction:column; gap:12px; }
@media (max-width: 760px){ .floating-actions{ bottom:76px; } }
.floating-btn{
  width:50px; height:50px; border-radius:50%; display:flex; align-items:center; justify-content:center; position:relative;
  box-shadow: var(--shadow-md); transition: transform 180ms var(--ease-out);
}
.floating-btn:active{ transform: scale(0.94); }
.floating-zalo{ background:#fff; border:1px solid var(--color-border); font-weight:800; color:#0068FF; font-size:0.72rem; }
.floating-call{ background: var(--gradient-primary); }
.floating-btn .ping{ position:absolute; inset:0; border-radius:50%; background: currentColor; opacity:0.3; animation: ping 2.2s var(--ease-standard) infinite; }
.floating-zalo .ping{ color:#0068FF; }
.floating-call .ping{ color: var(--color-primary); }
@keyframes ping{ 0%{ transform:scale(1); opacity:0.35; } 100%{ transform:scale(1.7); opacity:0; } }

/* ===== Utility ===== */
.text-center{ text-align:center; }
.grid-2{ display:grid; grid-template-columns:1fr 1fr; gap:32px; }
@media (max-width: 900px){ .grid-2{ grid-template-columns:1fr; } }

/* ===== Scroll-reveal (dùng với JS thêm class .is-visible, skill emil-design-eng: stagger 30-80ms) ===== */
.reveal{ opacity:0; transform: translateY(14px); transition: opacity 500ms var(--ease-out), transform 500ms var(--ease-out); }
.reveal.is-visible{ opacity:1; transform:none; }

/* ===== Reduced motion (skill apple-design §14) ===== */
@media (prefers-reduced-motion: reduce){
  *{ animation-duration:0.001ms !important; animation-iteration-count:1 !important; transition-duration:0.1s !important; scroll-behavior:auto !important; }
  .reveal{ transform:none; }
  .floating-btn .ping{ display:none; }
}