:root{
  --teal1:#18c6b2;
  --teal2:#14a7a0;
  --teal3:#0f8e97;
  --ink:#0f172a;
  --muted:#64748b;
  --line:#e5e7eb;
  --bg:#f6f8fb;
  --card:#ffffff;
  --shadow: 0 10px 30px rgba(2, 8, 23, .08);
  --shadow2: 0 6px 18px rgba(2, 8, 23, .10);
  --radius:14px;
  --radius2:18px;
  --headerH: 128px; /* topbar+header+nav (ước lượng) */
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family: ui-sans-serif,system-ui,-apple-system,Segoe UI,Roboto,Helvetica,Arial;
  color:var(--ink);
  background:var(--bg);
}

a{color:inherit;text-decoration:none}
.container{width:min(1180px, calc(100% - 32px)); margin:0 auto}

/* TOPBAR */
.topbar{
  background: linear-gradient(90deg, var(--teal3), var(--teal1));
  color:#fff;
  height:34px;
  display:flex;
  align-items:center;
}
.topbar-inner{display:flex; align-items:center; justify-content:space-between; gap:12px}
.topbar-left{display:flex; align-items:center; gap:12px; font-size:13px}
.topbar-link{opacity:.95}
.topbar-link:hover{opacity:1; text-decoration:underline}
.dot{opacity:.6}

/* dropdown mini */
.topbar-right{display:flex; align-items:center; gap:10px}
.dd{position:relative}
.dd-btn{
  height:26px;
  padding:0 10px;
  border:1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  color:#fff;
  border-radius:999px;
  font-size:12px;
  display:flex;
  align-items:center;
  gap:8px;
  cursor:pointer;
}
.dd-btn .caret{opacity:.9; font-size:11px}
.dd-menu{
  position:absolute;
  right:0;
  top:34px;
  min-width:160px;
  background:#fff;
  color:var(--ink);
  border:1px solid var(--line);
  border-radius:12px;
  box-shadow: var(--shadow2);
  padding:6px;
  opacity:0;
  transform: translateY(-6px);
  pointer-events:none;
  transition: .18s ease;
  z-index:50;
}
.dd:hover .dd-menu{opacity:1; transform: translateY(0); pointer-events:auto}
.dd-item{
  display:block;
  padding:10px 10px;
  border-radius:10px;
  font-size:13px;
}
.dd-item:hover{background:#f1f5f9}

.topbar-gear{
  width:28px;height:28px;
  border-radius:999px;
  display:grid;place-items:center;
  border:1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
}

/* HEADER */
.header{
  position:sticky;
  top:0;
  z-index:40;
  background:#fff;
  border-bottom:1px solid rgba(229,231,235,.8);
}
.header-inner{
  height:78px;
  display:flex;
  align-items:center;
  gap:14px;
}

/* mobile hamburger */
.hamburger{
  display:none;
  width:42px;height:42px;
  border-radius:12px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow: 0 2px 10px rgba(2,8,23,.05);
  cursor:pointer;
}

/* brand */
.brand{display:flex; align-items:center; gap:10px; min-width:190px}
.brand-logo{
  width:44px;height:44px;border-radius:14px;
  background: linear-gradient(135deg, var(--teal2), var(--teal1));
  display:grid; place-items:center;
  color:#fff; font-weight:900;
  box-shadow: 0 10px 25px rgba(20,167,160,.25);
}
.brand-name{font-weight:800; letter-spacing:.3px}
.brand-sub{font-size:12px; color:var(--muted); margin-top:1px}

/* search */
.search{
  flex:1;
  display:flex;
  align-items:center;
  background:#f8fafc;
  border:1px solid #e2e8f0;
  border-radius:999px;
  overflow:hidden;
  height:44px;
}
.search input{
  flex:1;
  border:0;
  outline:0;
  background:transparent;
  padding:0 14px;
  font-size:14px;
}
.search button{
  width:48px;height:44px;
  border:0;
  background:transparent;
  cursor:pointer;
  color:#0f172a;
  opacity:.75;
}
.search button:hover{opacity:1}

/* actions */
.actions{display:flex; align-items:center; gap:10px}
.icon-btn{
  position:relative;
  width:40px;height:40px;
  border-radius:12px;
  display:grid; place-items:center;
  border:1px solid var(--line);
  background:#fff;
  box-shadow: 0 2px 10px rgba(2,8,23,.05);
}
.icon-btn:hover{transform: translateY(-1px); transition:.15s ease}
.badge{
  position:absolute;
  top:-6px; right:-6px;
  min-width:18px; height:18px;
  padding:0 5px;
  border-radius:999px;
  background:#ef4444;
  color:#fff;
  font-size:11px;
  display:grid; place-items:center;
  border:2px solid #fff;
}

.userbox{
  display:flex; align-items:center; gap:10px;
  padding:6px 10px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  box-shadow: 0 2px 10px rgba(2,8,23,.05);
}
.avatar{
  width:36px;height:36px;border-radius:999px;
  background:#0b1220;
  color:#fff;
  display:grid;place-items:center;
}
.user-name{font-size:12px; font-weight:800}
.user-balance{font-size:13px; font-weight:900; color:#2563eb; margin-top:1px}

/* NAVLINE (menu hàng dưới) */
.navline{
  border-top:1px solid rgba(229,231,235,.7);
  background:#fff;
}
.navline-inner{
  height:52px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.nav{display:flex; align-items:center; gap:18px; flex-wrap:wrap}
.nav-item{
  display:flex; align-items:center; gap:8px;
  font-size:14px;
  color:#0b1220;
  padding:10px 10px;
  border-radius:12px;
}
.nav-item:hover{background:#f1f5f9}
.nav-item .chev{font-size:12px; opacity:.6}
.tag-hot{
  margin-left:6px;
  font-size:10px;
  font-weight:900;
  color:#fff;
  background:#f97316;
  padding:3px 6px;
  border-radius:999px;
}
.nav-admin{
  background: linear-gradient(135deg, #1f6feb, #2dd4bf);
  color:#fff;
  padding:10px 14px;
  border-radius:999px;
  box-shadow: 0 10px 25px rgba(31,111,235,.18);
}
.nav-admin:hover{filter:brightness(1.03); background: linear-gradient(135deg, #1f6feb, #2dd4bf)}

/* contact right */
.nav-contact{display:flex; align-items:center; gap:18px}
.c-item{display:flex; align-items:center; gap:10px; color:#0b1220}
.c-item i{color:var(--teal2)}
.c-title{font-size:11px; color:var(--muted); letter-spacing:.3px}
.c-val{font-size:13px; font-weight:800}

/* PAGE spacing */
.page{padding:18px 0 60px}
@media (min-width: 901px){
  .page{padding-top:18px}
}

/* HERO */
.hero{margin-top:12px}
.hero-card{
  position:relative;
  border-radius:22px;
  overflow:hidden;
  background:#eaf6ff;
  box-shadow: var(--shadow);
}
.hero-inner{
  position:relative;
  height:340px;
}
.hero-bg{
  position:absolute; inset:-40px;
  background:
    radial-gradient(600px 300px at 35% 45%, rgba(37,99,235,.22), transparent 62%),
    radial-gradient(540px 280px at 60% 35%, rgba(45,212,191,.22), transparent 60%),
    linear-gradient(90deg, #bfe6ff, #d9f2ff);
  filter: saturate(1.05);
}
.hero-content{
  position:absolute;
  inset:0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  padding:24px;
}
.hero-title1{
  font-size:54px;
  font-weight:1000;
  letter-spacing:1px;
  color:#0284c7;
  text-shadow: 0 6px 22px rgba(2,132,199,.18);
}
.hero-title2{
  font-size:54px;
  font-weight:1000;
  letter-spacing:1px;
  color:#ef4444;
  margin-top:4px;
  text-shadow: 0 8px 22px rgba(239,68,68,.18);
}
.hero-cta{
  margin-top:18px;
  padding:14px 26px;
  border-radius:999px;
  background: linear-gradient(135deg, #1d4ed8, #22c55e);
  color:#fff;
  font-weight:900;
  letter-spacing:.3px;
  box-shadow: 0 16px 30px rgba(29,78,216,.20);
}
.hero-cta:hover{transform: translateY(-1px); transition:.15s ease}

.hero-nav{
  position:absolute;
  top:50%;
  transform:translateY(-50%);
  width:44px;height:44px;
  border-radius:999px;
  border:0;
  background: rgba(15,23,42,.35);
  color:#fff;
  display:grid;place-items:center;
  cursor:pointer;
  z-index:5;
}
.hero-prev{left:12px}
.hero-next{right:12px}
.hero-nav:hover{background: rgba(15,23,42,.45)}

.hero-dots{
  position:absolute;
  bottom:14px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  gap:8px;
  z-index:6;
}
.dotx{
  width:10px;height:10px;
  border-radius:999px;
  background: rgba(255,255,255,.65);
  box-shadow: 0 6px 12px rgba(2,8,23,.12);
}
.dotx.active{width:22px; background:#fff}

/* floating "logos" */
.hero-badges{position:absolute; inset:0; z-index:4}
.hero-badge{
  position:absolute;
  width:86px; height:86px;
  border-radius:18px;
  background:#fff;
  box-shadow: 0 14px 30px rgba(2,8,23,.14);
  display:grid; place-items:center;
  transform: rotate(-8deg);
}
.hero-badge i{font-size:38px}
.hero-badge.b1{left:18%; top:18%; transform: rotate(-10deg)}
.hero-badge.b1 i{color:#22c55e}
.hero-badge.b2{right:18%; top:14%; transform: rotate(8deg)}
.hero-badge.b2 i{color:#2563eb}
.hero-badge.b3{right:10%; top:45%; width:92px;height:92px; transform: rotate(6deg)}
.hero-badge.b3 i{color:#ef4444}
.hero-badge.b4{right:22%; bottom:16%; width:92px;height:92px; transform: rotate(-6deg)}
.hero-badge.b4 .canva{font-weight:1000; color:#2563eb}
.hero-badge.b5{left:10%; top:50%; transform: rotate(-6deg)}
.hero-badge.b5 i{color:#ef4444}

/* SECTION */
.section{margin-top:22px}
.sec-head{display:flex; align-items:center; justify-content:space-between; gap:12px; margin:10px 0 12px}
.sec-head h2{margin:0; font-size:18px}
.sec-more{color:#2563eb; font-weight:700}

.grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap:14px;
}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:18px;
  overflow:hidden;
  box-shadow: 0 10px 26px rgba(2,8,23,.06);
}
.card-thumb{
  height:120px;
  background: linear-gradient(135deg, rgba(20,167,160,.18), rgba(37,99,235,.16));
}
.card-body{padding:12px}
.card-title{font-weight:900}
.card-sub{color:var(--muted); font-size:12px; margin-top:4px}
.card-foot{display:flex; align-items:center; justify-content:space-between; margin-top:12px}
.price{font-weight:1000; color:#ef4444}
.btn{
  padding:10px 12px;
  border-radius:12px;
  background:#0b1220;
  color:#fff;
  font-weight:800;
  font-size:13px;
}
.btn:hover{filter:brightness(1.05)}

/* MOBILE */
@media (max-width: 900px){
  .container{width:calc(100% - 24px)}
  .topbar-left{display:none}
  .header-inner{height:74px; gap:10px}
  .brand{min-width:auto}
  .brand-text{display:none}
  .search{height:42px}
  .actions .userbox{display:none}
  .nav-contact{display:none}
  .nav{display:none}
  .hamburger{display:grid; place-items:center}
  .hero-inner{height:250px}
  .hero-title1,.hero-title2{font-size:34px}
  .hero-badge{width:70px;height:70px}
  .hero-badge i{font-size:30px}
  .grid{grid-template-columns: repeat(2, 1fr)}
}

@media (max-width: 520px){
  .actions .icon-btn{width:38px;height:38px}
  .hero-title1,.hero-title2{font-size:28px}
  .grid{grid-template-columns: 1fr}
}

/* MOBILE DRAWER */
.m-overlay{
  position:fixed; inset:0;
  background: rgba(2,8,23,.55);
  opacity:0;
  pointer-events:none;
  transition:.18s ease;
  z-index:80;
}
.m-drawer{
  position:fixed;
  top:0; left:0;
  height:100%;
  width:min(320px, 86vw);
  background:#fff;
  transform: translateX(-105%);
  transition:.22s ease;
  z-index:90;
  box-shadow: 0 25px 60px rgba(2,8,23,.22);
}
.m-drawer-head{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 14px;
  border-bottom:1px solid var(--line);
}
.m-drawer-title{font-weight:1000}
.m-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--line);
  background:#fff; cursor:pointer;
}
.m-nav{padding:10px}
.m-item{
  display:flex; align-items:center; gap:10px;
  padding:12px 12px;
  border-radius:14px;
  border:1px solid transparent;
}
.m-item:hover{background:#f1f5f9}
.m-admin{
  background: linear-gradient(135deg, #1f6feb, #2dd4bf);
  color:#fff;
}
.m-admin:hover{background: linear-gradient(135deg, #1f6feb, #2dd4bf)}
.m-sep{height:1px;background:var(--line); margin:10px 6px}
.m-contact{padding:4px 6px 12px}
.m-crow{display:flex; align-items:flex-start; gap:12px; padding:10px 10px; border-radius:14px}
.m-crow i{color:var(--teal2); margin-top:3px}
.m-ctitle{font-size:11px; color:var(--muted); letter-spacing:.3px}
.m-cval{font-size:13px; font-weight:900}

body.m-open .m-overlay{opacity:1; pointer-events:auto}
body.m-open .m-drawer{transform: translateX(0)}
/* ===== Mobile Menu Pro ===== */
.navline{position:relative; z-index:9999;}
.mbar{display:none; align-items:center; justify-content:space-between; gap:10px; width:100%;}
.mbtn{
  display:inline-flex; align-items:center; justify-content:center;
  width:42px; height:42px;
  border-radius:12px;
  border:1px solid rgba(0,0,0,.08);
  background:#fff;
  color:#111;
  text-decoration:none;
}
.mbrand{
  font-weight:800;
  letter-spacing:.3px;
  font-size:15px;
  color:#111;
}

.m-overlay{
  position:fixed; inset:0;
  background:rgba(0,0,0,.5);
  opacity:0; pointer-events:none;
  transition:.2s;
  z-index:20000;
}
.m-drawer{
  position:fixed; top:0; left:0;
  width:min(86vw, 360px); height:100vh;
  background:#0b1220;
  color:#fff;
  transform:translateX(-105%);
  transition:.25s;
  z-index:20001;
  display:flex; flex-direction:column;
  box-shadow: 0 20px 50px rgba(0,0,0,.35);
}
.m-drawer-head{
  display:flex; align-items:center; justify-content:space-between;
  padding:14px 14px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.m-drawer-title{font-weight:800;}
.m-close{
  width:42px; height:42px; border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.06);
  color:#fff; cursor:pointer;
}

.m-nav{padding:10px; overflow:auto;}
.m-item{
  display:flex; align-items:center; gap:10px;
  padding:12px 12px;
  border-radius:14px;
  color:#fff; text-decoration:none;
}
.m-item span{display:inline-block; line-height:1.2;}
.m-item:hover{background:rgba(255,255,255,.06);}
.m-item .tag-hot{margin-left:auto;}

.m-sep{height:1px; margin:10px 6px; background:rgba(255,255,255,.08);}
.m-contact{padding:8px 6px 0;}
.m-crow{
  display:flex; gap:10px;
  padding:12px;
  border-radius:14px;
  background:rgba(255,255,255,.04);
  margin:8px 0;
}
.m-ctitle{font-size:12px; opacity:.75}
.m-cval{font-weight:700}

body.m-open .m-overlay{opacity:1; pointer-events:auto;}
body.m-open .m-drawer{transform:translateX(0);}

@media (max-width: 768px){
  .dnav{display:none !important;}
  .mbar{display:flex;}
}