/* ============================================================
   WEBSITE CÁ NHÂN — ĐỖ ĐĂNG DƯƠNG
   Design system: Brand Kit v1.1 (7. brand-kit-do-dang-duong.html)
   Font: Montserrat · Cam #EA6A1E · Xanh #1E5AA8 · Mực #16181D
   ============================================================ */
:root{
  --cam:#EA6A1E;
  --xanh:#1E5AA8;
  --ink:#16181D;
  --paper:#F6F4F0;
  --line:#E4DFD7;
  --muted:#71757C;
  --soft:#FDF3EA;
  --xsoft:#EAF1FB;
}
*{margin:0;padding:0;box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:'Montserrat',Arial,sans-serif;
  color:var(--ink);background:var(--paper);
  line-height:1.6;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--xanh);text-decoration:none;}
.wrap{max-width:960px;margin:0 auto;padding:0 24px;}

/* ---------- NAV ---------- */
nav{
  position:sticky;top:0;z-index:50;
  background:rgba(246,244,240,.92);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-inner{max-width:960px;margin:0 auto;padding:14px 24px;display:flex;align-items:center;gap:22px;flex-wrap:wrap;}
.logo{font-weight:900;font-size:15px;letter-spacing:-.3px;text-transform:uppercase;color:var(--ink);}
.logo span{color:#fff;background:var(--cam);padding:1px 7px 2px;}
.nav-links{display:flex;gap:18px;margin-left:auto;align-items:center;flex-wrap:wrap;}
.nav-links a{font-weight:700;font-size:12.5px;letter-spacing:.5px;text-transform:uppercase;color:var(--ink);}
.nav-links a:hover{color:var(--cam);}
.nav-links a.active{color:var(--cam);}
.nav-links a.btn-nav{
  background:var(--cam);color:#fff;border-radius:6px;padding:8px 16px;
}
.nav-links a.btn-nav:hover{background:#d55e15;color:#fff;}

/* ---------- HERO ---------- */
.hero{padding:76px 0 56px;position:relative;overflow:hidden;}
.hero::before{content:"";position:absolute;left:0;top:0;bottom:0;width:10px;background:var(--xanh);}
.kicker{font-weight:800;font-size:12px;letter-spacing:2.5px;text-transform:uppercase;color:var(--cam);margin-bottom:16px;}
.hero .setup{
  font-weight:800;font-size:clamp(20px,3.6vw,30px);line-height:1.06;
  letter-spacing:-.5px;text-transform:uppercase;color:var(--xanh);
}
.hero .punch{
  margin-top:10px;
  font-weight:900;font-size:clamp(30px,6vw,54px);line-height:1.0;letter-spacing:-1.5px;text-transform:uppercase;
}
.hero .punch .hl{
  color:#fff;background:var(--cam);padding:2px 12px 5px;
  box-decoration-break:clone;-webkit-box-decoration-break:clone;
}
.hero .sub{margin-top:22px;font-weight:600;font-size:17px;max-width:640px;}
.hero .sub2{margin-top:10px;font-weight:500;font-size:14px;color:var(--muted);max-width:640px;}
.cta-row{margin-top:30px;display:flex;gap:12px;flex-wrap:wrap;}
.btn{
  display:inline-block;font-weight:800;font-size:13.5px;letter-spacing:.5px;text-transform:uppercase;
  padding:15px 28px;border-radius:8px;transition:transform .15s ease, background .15s ease;
}
.btn:hover{transform:translateY(-2px);}
.btn-cam{background:var(--cam);color:#fff;}
.btn-cam:hover{background:#d55e15;color:#fff;}
.btn-ghost{border:2px solid var(--ink);color:var(--ink);}
.btn-ghost:hover{border-color:var(--cam);color:var(--cam);}

/* ---------- STATS ---------- */
.stats{background:var(--ink);}
.stats-inner{max-width:960px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);}
.stat{padding:26px 14px;text-align:center;border-right:1px solid #2A2D34;}
.stat:last-child{border-right:none;}
.stat .n{font-weight:900;font-size:clamp(20px,3vw,30px);color:var(--cam);letter-spacing:-.5px;}
.stat .t{font-weight:600;font-size:10.5px;letter-spacing:1px;text-transform:uppercase;color:#B9BDC4;margin-top:5px;line-height:1.5;}

/* ---------- SECTIONS ---------- */
section{padding:60px 0;}
section.alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.eyebrow{font-weight:800;font-size:11px;letter-spacing:2px;text-transform:uppercase;color:var(--cam);margin-bottom:8px;}
h2{font-weight:900;font-size:clamp(22px,3.4vw,30px);letter-spacing:-.6px;text-transform:uppercase;margin-bottom:18px;line-height:1.1;}
h2 .hl{color:#fff;background:var(--cam);padding:1px 9px 3px;box-decoration-break:clone;-webkit-box-decoration-break:clone;}
.lead{font-weight:500;font-size:15.5px;color:#3B3E45;max-width:700px;}
.lead b{font-weight:800;color:var(--ink);}
.lead + .lead{margin-top:12px;}

/* pain list */
.pains{margin-top:26px;display:grid;grid-template-columns:1fr 1fr;gap:12px;}
.pain{background:#fff;border:1px solid var(--line);border-radius:12px;padding:18px 20px;font-weight:500;font-size:14px;color:#3B3E45;position:relative;padding-left:44px;}
section.alt .pain{background:var(--paper);}
.pain::before{content:"→";position:absolute;left:18px;top:16px;font-weight:900;color:var(--cam);font-size:16px;}
.enemy{
  margin-top:26px;background:var(--ink);border-radius:14px;padding:28px 32px;
}
.enemy p{font-weight:800;font-size:clamp(16px,2.4vw,21px);line-height:1.35;color:#fff;letter-spacing:-.3px;}
.enemy p .hl{color:#fff;background:var(--cam);padding:1px 8px 3px;box-decoration-break:clone;-webkit-box-decoration-break:clone;}
.enemy .src{margin-top:10px;font-weight:600;font-size:12px;color:#8A8E96;}

/* beliefs */
.beliefs{margin-top:8px;display:grid;grid-template-columns:repeat(3,1fr);gap:14px;}
.belief{background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px;}
.belief .n{font-weight:900;font-size:13px;color:#fff;background:var(--xanh);width:32px;height:32px;border-radius:8px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.belief:nth-child(2) .n{background:var(--cam);}
.belief h3{font-weight:800;font-size:15px;margin-bottom:6px;}
.belief p{font-weight:500;font-size:13px;color:var(--muted);}

/* topics (4 trụ) */
.topics{margin-top:8px;display:grid;grid-template-columns:1fr 1fr;gap:14px;}
.topic{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px 22px;}
section.alt .topic{background:var(--paper);}
.topic h3{font-weight:800;font-size:15px;margin-bottom:5px;}
.topic h3 span{color:var(--cam);margin-right:6px;}
.topic p{font-weight:500;font-size:13px;color:var(--muted);}

/* offer card */
.offer-band{background:var(--ink);border-radius:16px;padding:38px 40px;position:relative;overflow:hidden;}
.offer-band::before{content:"";position:absolute;left:0;top:0;bottom:0;width:8px;background:var(--cam);}
.offer-band .eyebrow{color:var(--cam);}
.offer-band h2{color:#fff;}
.offer-band p{font-weight:500;font-size:14.5px;color:#B9BDC4;max-width:640px;}
.offer-band p b{color:#fff;}
.offer-band .cta-row{margin-top:24px;}

/* timeline (về tôi) */
.timeline{margin-top:10px;}
.t-item{display:flex;gap:20px;padding:16px 0;border-top:1px solid var(--line);}
.t-item:first-child{border-top:none;}
.t-time{flex:none;width:150px;font-weight:800;font-size:12px;color:var(--muted);letter-spacing:.5px;padding-top:2px;}
.t-body .t-role{font-weight:800;font-size:15px;}
.t-body .t-role small{font-weight:600;color:var(--xanh);}
.t-body p{font-weight:500;font-size:13px;color:#3B3E45;margin-top:3px;}
.t-body p b{font-weight:800;color:var(--cam);}
.t-item.now{background:var(--soft);border:1px solid var(--line);border-radius:12px;padding:18px 20px;margin-bottom:10px;}

/* steps (audit) */
.steps{margin-top:10px;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;}
.step{background:#fff;border:1px solid var(--line);border-radius:12px;padding:20px;}
section.alt .step{background:var(--paper);}
.step .n{font-weight:900;font-size:14px;color:#fff;background:var(--cam);width:34px;height:34px;border-radius:9px;display:flex;align-items:center;justify-content:center;margin-bottom:12px;}
.step h3{font-weight:800;font-size:14px;margin-bottom:5px;}
.step p{font-weight:500;font-size:12.5px;color:var(--muted);}

.guarantee{
  margin-top:26px;background:var(--xsoft);border:2px solid var(--xanh);border-radius:14px;padding:24px 28px;
}
.guarantee h3{font-weight:900;font-size:16px;text-transform:uppercase;color:var(--xanh);margin-bottom:6px;}
.guarantee p{font-weight:600;font-size:14.5px;color:var(--ink);}

.fit{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:8px;}
.fit .box{border-radius:12px;padding:22px;font-weight:500;font-size:13.5px;line-height:1.6;}
.fit .yes{background:#EAF3EC;border:1px solid #C9E2CF;}
.fit .no{background:#FBEDE7;border:1px solid #F1D3C5;}
.fit h4{font-weight:900;font-size:13px;letter-spacing:1px;text-transform:uppercase;margin-bottom:10px;}
.fit .yes h4{color:#1F6E43;}
.fit .no h4{color:var(--cam);}
.fit ul{list-style:none;}
.fit li{padding-left:20px;position:relative;margin-bottom:7px;}
.fit .yes li::before{content:"✓";position:absolute;left:0;color:#1F6E43;font-weight:900;}
.fit .no li::before{content:"✕";position:absolute;left:0;color:var(--cam);font-weight:900;}

/* checklist page */
.gift{display:grid;grid-template-columns:1.1fr 1fr;gap:30px;align-items:start;margin-top:10px;}
.gift-list{list-style:none;}
.gift-list li{font-weight:500;font-size:14px;color:#3B3E45;padding:11px 0 11px 30px;border-top:1px solid var(--line);position:relative;}
.gift-list li:first-child{border-top:none;}
.gift-list li::before{content:"✓";position:absolute;left:4px;font-weight:900;color:var(--cam);}
.getbox{background:#fff;border:2px solid var(--cam);border-radius:14px;padding:26px 28px;}
section.alt .getbox{background:var(--paper);}
.getbox h3{font-weight:900;font-size:16px;text-transform:uppercase;margin-bottom:12px;}
.getbox p{font-weight:500;font-size:13.5px;color:#3B3E45;margin-bottom:14px;}
.getbox .btn{width:100%;text-align:center;}
.getbox .or{text-align:center;font-weight:700;font-size:11px;color:var(--muted);letter-spacing:1px;text-transform:uppercase;margin:12px 0;}

/* quote */
.quote{border-left:4px solid var(--cam);padding:6px 0 6px 22px;margin-top:24px;}
.quote p{font-weight:600;font-size:16px;font-style:italic;color:var(--ink);max-width:640px;}

/* ---------- FOOTER ---------- */
footer{background:var(--ink);padding:44px 0 36px;margin-top:20px;}
.f-inner{max-width:960px;margin:0 auto;padding:0 24px;}
.f-name{font-weight:900;font-size:17px;letter-spacing:-.3px;text-transform:uppercase;color:#fff;}
.f-name span{color:#fff;background:var(--cam);padding:1px 7px 2px;}
.f-tag{margin-top:8px;font-weight:500;font-size:13px;color:#B9BDC4;max-width:520px;}
.f-links{margin-top:18px;display:flex;gap:18px;flex-wrap:wrap;}
.f-links a{font-weight:700;font-size:12px;letter-spacing:.5px;text-transform:uppercase;color:#D8DBDF;}
.f-links a:hover{color:var(--cam);}
.f-note{margin-top:22px;font-weight:500;font-size:11px;color:#71757C;border-top:1px solid #2A2D34;padding-top:16px;}

/* ---------- RESPONSIVE ---------- */
@media(max-width:720px){
  .stats-inner{grid-template-columns:repeat(2,1fr);}
  .stat{border-bottom:1px solid #2A2D34;}
  .pains,.topics,.fit,.gift{grid-template-columns:1fr;}
  .beliefs{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr 1fr;}
  .t-item{flex-direction:column;gap:4px;}
  .t-time{width:auto;}
  .offer-band{padding:28px 24px;}
}