*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
:root{
  --forest:#1B4332;--forest-mid:#2E7D32;--forest-light:#E8F5E9;--forest-50:#F1F8F1;
  --red:#C8102E;--red-dark:#9e0c24;
  --blue:#1565C0;--gold:#c9973a;
  --cream:#FAFAF8;--gray-100:#E8E7E0;--gray-200:#D4D2C9;
  --gray-400:#9E9C93;--gray-600:#6B6A63;--gray-900:#1C1B18;
  --radius:14px;--shadow:0 4px 24px rgba(27,67,50,0.10);
}
html{scroll-behavior:smooth}
body{font-family:'Be Vietnam Pro',sans-serif;background:var(--cream);color:var(--gray-900);line-height:1.6}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}

/* ── NAVBAR ── */
.nav{
  position:sticky;top:0;z-index:100;
  background:var(--forest);
  padding:0 24px;
  display:flex;align-items:center;justify-content:space-between;
  height:64px;
  box-shadow:0 2px 12px rgba(0,0,0,0.15);
}
.nav-logo{display:flex;align-items:center;gap:12px}
.nav-mark{
  width:36px;height:36px;border-radius:8px;
  background:var(--red);
  display:flex;align-items:center;justify-content:center;
  font-family:'Playfair Display',serif;font-weight:700;
  color:white;font-size:13px;letter-spacing:-.5px;flex-shrink:0
}
.nav-name{font-size:15px;font-weight:600;color:white;line-height:1.2}
.nav-name span{color:#A5D6A7;font-size:11px;font-weight:400;display:block}
.nav-links{display:flex;align-items:center;gap:24px}
.nav-links a{font-size:13px;font-weight:500;color:rgba(255,255,255,0.7);transition:color .15s}
.nav-links a:hover{color:white}
.nav-cta{
  height:36px;padding:0 18px;
  background:var(--red);color:white;
  border-radius:8px;font-size:13px;font-weight:600;
  display:flex;align-items:center;
  transition:background .15s;
}
.nav-cta:hover{background:var(--red-dark)}
@media(max-width:640px){.nav-links{display:none}}

/* ── HERO ── */
.hero{
  background:var(--forest);
  padding:72px 24px 80px;
  text-align:center;
  position:relative;overflow:hidden;
}
.hero::before{content:'';position:absolute;top:-80px;right:-80px;width:320px;height:320px;border-radius:50%;background:rgba(46,125,50,0.15)}
.hero::after{content:'';position:absolute;bottom:-100px;left:-60px;width:280px;height:280px;border-radius:50%;background:rgba(200,16,46,0.06)}
.hero-tag{
  display:inline-block;
  background:rgba(46,125,50,0.3);
  border:1px solid rgba(165,214,167,0.5);
  color:#A5D6A7;
  font-size:11px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;
  padding:5px 16px;border-radius:20px;margin-bottom:20px;position:relative;
}
.hero h1{
  font-family:'Playfair Display',serif;
  font-size:clamp(28px,5vw,48px);
  font-weight:700;color:white;
  line-height:1.2;margin-bottom:14px;position:relative;
}
.hero h1 em{font-style:normal;color:#A5D6A7}
.hero-sub{
  font-size:16px;color:rgba(255,255,255,0.65);
  max-width:520px;margin:0 auto 32px;line-height:1.7;position:relative;
}
.hero-btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;position:relative}
.btn-hero-p{
  height:52px;padding:0 28px;
  background:var(--red);color:white;
  border-radius:10px;font-size:15px;font-weight:600;
  display:flex;align-items:center;gap:8px;
  transition:background .15s,transform .1s;
}
.btn-hero-p:hover{background:var(--red-dark);transform:translateY(-1px)}
.btn-hero-s{
  height:52px;padding:0 28px;
  background:transparent;color:white;
  border:1.5px solid rgba(255,255,255,0.35);
  border-radius:10px;font-size:15px;font-weight:500;
  display:flex;align-items:center;gap:8px;
  transition:background .15s;
}
.btn-hero-s:hover{background:rgba(255,255,255,0.08)}

/* ── TRUST BAR ── */
.trust-bar{
  background:var(--forest-50);
  border-bottom:1px solid var(--forest-light);
  padding:28px 24px;
}
.trust-grid{
  max-width:900px;margin:0 auto;
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
}
@media(max-width:640px){.trust-grid{grid-template-columns:repeat(2,1fr)}}
.trust-item{text-align:center}
.trust-num{
  font-family:'Playfair Display',serif;
  font-size:28px;font-weight:700;color:var(--forest);
  line-height:1;margin-bottom:4px;
}
.trust-label{font-size:12px;color:var(--gray-600);line-height:1.4}

/* ── SECTIONS SHARED ── */
.section{padding:72px 24px}
.section-inner{max-width:900px;margin:0 auto}
.section-tag{
  display:inline-block;
  font-size:11px;font-weight:600;letter-spacing:.1em;text-transform:uppercase;
  color:var(--forest-mid);background:var(--forest-light);
  padding:4px 12px;border-radius:20px;margin-bottom:12px;
}
.section-title{
  font-family:'Playfair Display',serif;
  font-size:clamp(22px,3.5vw,32px);font-weight:700;
  color:var(--forest);margin-bottom:8px;line-height:1.25;
}
.section-sub{font-size:15px;color:var(--gray-600);max-width:560px;line-height:1.7}

/* ── WHY ME ── */
.why-grid{
  display:grid;grid-template-columns:repeat(2,1fr);
  gap:16px;margin-top:40px;
}
@media(max-width:600px){.why-grid{grid-template-columns:1fr}}
.why-card{
  background:white;border-radius:var(--radius);
  border:1px solid var(--gray-100);
  padding:24px;
  transition:box-shadow .2s,transform .2s;
}
.why-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.why-icon{
  width:44px;height:44px;border-radius:10px;
  background:var(--forest-light);
  display:flex;align-items:center;justify-content:center;
  font-size:22px;margin-bottom:14px;
}
.why-title{font-size:15px;font-weight:600;color:var(--forest);margin-bottom:6px}
.why-desc{font-size:13px;color:var(--gray-600);line-height:1.6}

/* ── CALCULATOR SECTION ── */
.calc-section{background:var(--forest-50);padding:72px 24px}
.calc-inner{max-width:900px;margin:0 auto}
.calc-header{text-align:center;margin-bottom:36px}
.calc-mockup{
  background:white;border-radius:var(--radius);
  border:1px solid var(--gray-200);
  overflow:hidden;box-shadow:var(--shadow);
}
.calc-mockup-bar{
  background:var(--forest);padding:16px 20px;
  display:flex;align-items:center;justify-content:space-between;
}
.calc-mockup-title{font-size:14px;font-weight:600;color:white}
.calc-mockup-tag{
  font-size:10px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  background:var(--red);color:white;padding:3px 10px;border-radius:20px;
}
.calc-mockup-body{padding:28px 24px}
.calc-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:16px}
@media(max-width:500px){.calc-row{grid-template-columns:1fr}}
.calc-field label{font-size:12px;font-weight:600;color:var(--gray-600);display:block;margin-bottom:6px}
.calc-field-box{
  height:44px;border:1.5px solid var(--gray-200);
  border-radius:8px;background:var(--forest-50);
  display:flex;align-items:center;padding:0 14px;
  font-size:13px;color:var(--gray-400);
}
.calc-tier-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;margin-bottom:16px}
.calc-tier{
  border:1.5px solid var(--gray-200);border-radius:8px;
  padding:10px 8px;text-align:center;
}
.calc-tier.active{border-color:var(--forest-mid);background:var(--forest-light)}
.calc-tier-name{font-size:12px;font-weight:600;color:var(--gray-900)}
.calc-tier.active .calc-tier-name{color:var(--forest)}
.calc-tier-sub{font-size:10px;color:var(--gray-400);margin-top:2px}
.calc-btn-mock{
  width:100%;height:48px;background:var(--red);
  border-radius:8px;display:flex;align-items:center;
  justify-content:center;font-size:14px;font-weight:600;color:white;
}
.calc-embed-note{
  text-align:center;padding:16px;
  font-size:12px;color:var(--gray-600);
  background:var(--forest-50);border-top:1px solid var(--forest-light);
}
.calc-embed-note a{color:var(--blue);font-weight:500}

/* ── GIẢI PHÁP CAROUSEL ── */
.solutions-section{background:white;padding:72px 24px}
.solutions-wrap{position:relative;margin-top:40px}
.carousel-track-outer{overflow:hidden;border-radius:var(--radius)}
.carousel-track{
  display:flex;gap:20px;
  transition:transform .4s cubic-bezier(.4,0,.2,1);
  will-change:transform;
}
.sol-card{
  flex:0 0 calc(33.333% - 14px);
  border-radius:var(--radius);
  border:1.5px solid var(--gray-200);
  overflow:hidden;
  transition:box-shadow .2s,transform .2s;
  background:white;
}
@media(max-width:900px){.sol-card{flex:0 0 calc(50% - 10px)}}
@media(max-width:580px){.sol-card{flex:0 0 100%}}
.sol-card:hover{box-shadow:var(--shadow);transform:translateY(-3px)}
.sol-card-head{
  padding:22px 22px 18px;
  position:relative;overflow:hidden;
}
.sol-card-head::after{
  content:'';position:absolute;bottom:-40px;right:-40px;
  width:120px;height:120px;border-radius:50%;
  background:rgba(255,255,255,0.08);
}
.sol-tag{
  display:inline-block;
  font-size:9px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;
  padding:3px 10px;border-radius:20px;margin-bottom:10px;
  background:rgba(255,255,255,0.2);color:white;
}
.sol-persona{
  font-family:'Playfair Display',serif;
  font-size:16px;font-weight:700;color:white;
  line-height:1.3;margin-bottom:6px;
}
.sol-hook{
  font-size:12px;color:rgba(255,255,255,0.7);
  line-height:1.55;font-style:italic;
}
.sol-card-body{padding:18px 22px}
.sol-desc{font-size:13px;color:var(--gray-600);line-height:1.65;margin-bottom:14px}
.sol-products{list-style:none;margin-bottom:16px;display:flex;flex-direction:column;gap:5px}
.sol-products li{
  font-size:12px;color:var(--gray-600);
  display:flex;align-items:flex-start;gap:7px;line-height:1.5;
}
.sol-products li::before{content:'✓';color:var(--forest-mid);font-weight:700;flex-shrink:0}
.sol-footer{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;
  background:var(--forest-50);border-radius:8px;
  margin-bottom:14px;
}
.sol-fee-label{font-size:10px;color:var(--gray-400)}
.sol-fee-val{font-size:16px;font-weight:700;color:var(--forest)}
.sol-fee-sub{font-size:10px;color:var(--gray-400);margin-top:1px}
.sol-cta{
  display:block;width:100%;height:40px;
  background:var(--red);color:white;
  border:none;border-radius:8px;
  font-family:inherit;font-size:13px;font-weight:600;
  cursor:pointer;text-align:center;line-height:40px;
  transition:background .15s;text-decoration:none;
}
.sol-cta:hover{background:var(--red-dark)}
/* Carousel controls */
.carousel-nav{
  display:flex;align-items:center;justify-content:center;
  gap:12px;margin-top:24px;
}
.carousel-btn{
  width:40px;height:40px;border-radius:50%;
  border:1.5px solid var(--gray-200);background:white;
  display:flex;align-items:center;justify-content:center;
  cursor:pointer;font-size:16px;color:var(--gray-600);
  transition:all .15s;flex-shrink:0;
}
.carousel-btn:hover{border-color:var(--forest-mid);color:var(--forest-mid)}
.carousel-btn:disabled{opacity:.3;cursor:not-allowed}
.carousel-dots{display:flex;gap:6px;align-items:center}
.carousel-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--gray-200);cursor:pointer;
  transition:all .2s;border:none;padding:0;
}
.carousel-dot.active{background:var(--forest-mid);width:20px;border-radius:4px}

/* ── ABOUT ── */
.about-section{background:var(--forest-50);padding:72px 24px}
.about-inner{
  max-width:900px;margin:0 auto;
  display:grid;grid-template-columns:280px 1fr;gap:48px;align-items:start;
}
@media(max-width:700px){.about-inner{grid-template-columns:1fr}}
.about-photo{
  border-radius:var(--radius);overflow:hidden;
  background:var(--forest-light);
  aspect-ratio:3/4;
  display:flex;align-items:center;justify-content:center;
  border:3px solid white;
  box-shadow:var(--shadow);
}
.about-photo-placeholder{
  text-align:center;padding:24px;
  color:var(--forest-mid);
}
.about-photo-placeholder .icon{font-size:48px;margin-bottom:8px}
.about-photo-placeholder p{font-size:12px;color:var(--gray-400);line-height:1.5}
.about-content{}
.about-name{
  font-family:'Playfair Display',serif;
  font-size:26px;font-weight:700;color:var(--forest);
  margin-bottom:4px;
}
.about-title{font-size:13px;color:var(--gray-600);margin-bottom:20px}
.about-story{font-size:14px;color:var(--gray-600);line-height:1.8;margin-bottom:20px}
.about-story p{margin-bottom:12px}
.about-story p:last-child{margin-bottom:0}
.about-highlights{display:flex;flex-direction:column;gap:10px;margin-bottom:24px}
.about-hl{
  display:flex;align-items:flex-start;gap:10px;
  background:white;border-radius:8px;padding:12px 14px;
  border:1px solid var(--gray-100);
}
.about-hl-icon{
  width:28px;height:28px;border-radius:6px;
  background:var(--forest-light);
  display:flex;align-items:center;justify-content:center;
  font-size:14px;flex-shrink:0;
}
.about-hl-text{font-size:13px;color:var(--gray-600);line-height:1.5}
.about-hl-text strong{color:var(--forest);font-weight:600}
.about-contact{display:flex;flex-wrap:wrap;gap:10px}
.about-contact-item{
  display:flex;align-items:center;gap:6px;
  font-size:13px;font-weight:500;color:var(--forest);
  background:white;border-radius:8px;padding:8px 14px;
  border:1px solid var(--forest-light);
}

/* ── BLOG ── */
.blog-section{background:white;padding:72px 24px}
.blog-grid{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:20px;margin-top:40px;
}
@media(max-width:700px){.blog-grid{grid-template-columns:1fr}}
.blog-card{
  border-radius:var(--radius);overflow:hidden;
  border:1px solid var(--gray-100);
  transition:box-shadow .2s,transform .2s;
}
.blog-card:hover{box-shadow:var(--shadow);transform:translateY(-2px)}
.blog-thumb{
  height:160px;background:var(--forest-light);
  display:flex;align-items:center;justify-content:center;
  font-size:36px;
}
.blog-body{padding:18px}
.blog-cat{
  font-size:10px;font-weight:700;letter-spacing:.08em;text-transform:uppercase;
  color:var(--forest-mid);margin-bottom:8px;
}
.blog-title{
  font-size:14px;font-weight:600;color:var(--gray-900);
  line-height:1.45;margin-bottom:8px;
}
.blog-excerpt{font-size:12px;color:var(--gray-600);line-height:1.6;margin-bottom:12px}
.blog-read-more{
  font-size:12px;font-weight:600;color:var(--blue);
  display:flex;align-items:center;gap:4px;
}

/* ── LEAD FORM ── */
.lead-section{
  background:var(--forest);padding:72px 24px;
  position:relative;overflow:hidden;
}
.lead-section::before{
  content:'';position:absolute;
  top:-100px;right:-100px;width:400px;height:400px;
  border-radius:50%;background:rgba(46,125,50,0.15);
}
.lead-inner{
  max-width:640px;margin:0 auto;text-align:center;
  position:relative;
}
.lead-section .section-tag{
  background:rgba(46,125,50,0.3);
  border:1px solid rgba(165,214,167,0.4);
  color:#A5D6A7;
}
.lead-section .section-title{color:white}
.lead-section .section-sub{color:rgba(255,255,255,0.65);margin:0 auto 32px}
.lead-form-wrap{
  background:rgba(255,255,255,0.07);
  border:1px solid rgba(255,255,255,0.15);
  border-radius:var(--radius);padding:28px 24px;
  text-align:left;
}
.lead-field{margin-bottom:12px}
.lead-field input,.lead-field select{
  width:100%;height:48px;
  border:1.5px solid rgba(255,255,255,0.2);
  border-radius:8px;padding:0 16px;
  font-family:inherit;font-size:14px;
  color:white;background:rgba(255,255,255,0.1);
  transition:border-color .15s;
  -webkit-appearance:none;
}
.lead-field input::placeholder{color:rgba(255,255,255,0.4)}
.lead-field select{color:rgba(255,255,255,0.8)}
.lead-field select option{color:var(--gray-900);background:white}
.lead-field input:focus,.lead-field select:focus{
  outline:none;border-color:rgba(165,214,167,0.7);
  background:rgba(255,255,255,0.15);
}
.lead-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px}
@media(max-width:500px){.lead-grid{grid-template-columns:1fr}}
.lead-submit{
  width:100%;height:52px;margin-top:8px;
  background:var(--red);color:white;
  border:none;border-radius:8px;
  font-family:inherit;font-size:15px;font-weight:700;
  cursor:pointer;transition:background .15s;
}
.lead-submit:hover{background:var(--red-dark)}
.lead-note{
  font-size:11px;color:rgba(255,255,255,0.35);
  text-align:center;margin-top:10px;
}
.lead-zalo{
  display:flex;align-items:center;justify-content:center;gap:8px;
  margin-top:20px;font-size:13px;color:rgba(255,255,255,0.6);
}
.lead-zalo a{
  display:flex;align-items:center;gap:6px;
  background:#0068ff;color:white;
  padding:8px 18px;border-radius:8px;
  font-size:13px;font-weight:600;
  transition:opacity .15s;
}
.lead-zalo a:hover{opacity:.85}

/* ── FOOTER ── */
footer{
  background:#111E17;
  padding:40px 24px 24px;
}
.footer-inner{max-width:900px;margin:0 auto}
.footer-top{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;
  gap:40px;margin-bottom:32px;
}
@media(max-width:640px){.footer-top{grid-template-columns:1fr}}
.footer-brand .nav-mark{margin-bottom:12px}
.footer-brand-name{
  font-family:'Playfair Display',serif;
  font-size:17px;font-weight:700;color:white;margin-bottom:4px;
}
.footer-brand-sub{font-size:12px;color:rgba(255,255,255,0.4);line-height:1.6;margin-bottom:16px}
.footer-social{display:flex;gap:8px}
.footer-social a{
  width:36px;height:36px;border-radius:8px;
  background:rgba(255,255,255,0.08);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:rgba(255,255,255,0.6);
  transition:background .15s,color .15s;
}
.footer-social a:hover{background:var(--forest-mid);color:white}
.footer-col-title{
  font-size:12px;font-weight:600;letter-spacing:.08em;text-transform:uppercase;
  color:rgba(255,255,255,0.5);margin-bottom:14px;
}
.footer-links{list-style:none;display:flex;flex-direction:column;gap:8px}
.footer-links a{font-size:13px;color:rgba(255,255,255,0.5);transition:color .15s}
.footer-links a:hover{color:#A5D6A7}
.footer-contact-item{
  display:flex;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,0.5);margin-bottom:8px;
}
.footer-contact-item span{color:rgba(255,255,255,0.3);font-size:12px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.07);
  padding-top:20px;
  display:flex;justify-content:space-between;align-items:center;
  flex-wrap:wrap;gap:8px;
}
.footer-copy{font-size:11px;color:rgba(255,255,255,0.25);line-height:1.6}
.footer-dai{
  display:flex;align-items:center;gap:6px;
  font-size:11px;color:rgba(255,255,255,0.3);
}
.footer-dai-dot{width:6px;height:6px;border-radius:50%;background:var(--red)}

/* ── ANIMATIONS ── */
@keyframes fadeUp{from{opacity:0;transform:translateY(18px)}to{opacity:1;transform:translateY(0)}}
.fade-up{opacity:0;animation:fadeUp .5s ease forwards}
.delay-1{animation-delay:.1s}
.delay-2{animation-delay:.2s}
.delay-3{animation-delay:.3s}