/* =========================================================
   ACEGO TRAVEL VISA — He thong thiet ke chung
   ========================================================= */
:root{
  --navy-900:#081B33;
  --navy-800:#0B2545;
  --navy-700:#123561;
  --navy-600:#1B4A82;
  --gold:#C49A3F;
  --gold-soft:#E8D5A8;
  --ink:#16202E;
  --muted:#5D6B7D;
  --line:#E2E7EE;
  --bg:#F6F8FB;
  --ok:#0F8A5F;
  --radius:14px;
  --shadow-sm:0 1px 2px rgba(11,37,69,.06), 0 4px 12px rgba(11,37,69,.06);
  --shadow-md:0 8px 30px rgba(11,37,69,.10);
  --shadow-lg:0 24px 60px rgba(11,37,69,.16);
  --maxw:1180px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',Roboto,sans-serif;
  color:var(--ink);
  background:var(--bg);
  line-height:1.65;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,h5{line-height:1.2;margin:0;letter-spacing:-.02em;font-weight:700}
p{margin:0}

.wrap{max-width:var(--maxw);margin:0 auto;padding:0 24px}
.eyebrow{
  font-size:12px;font-weight:700;letter-spacing:.16em;text-transform:uppercase;
  color:var(--gold);margin-bottom:14px;display:flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--gold);display:block}
.eyebrow.center{justify-content:center}
.section{padding:92px 0}
.section-head{max-width:730px;margin-bottom:52px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head h2{font-size:clamp(28px,3.6vw,42px);margin-bottom:16px}
.section-head p{color:var(--muted);font-size:17px}

/* ---------- Nut ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:10px;font-weight:600;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:.18s ease;
  font-family:inherit;white-space:nowrap;
}
.btn-primary{background:var(--navy-800);color:#fff;box-shadow:var(--shadow-sm)}
.btn-primary:hover{background:var(--navy-700);transform:translateY(-1px);box-shadow:var(--shadow-md)}
.btn-gold{background:var(--gold);color:var(--navy-900)}
.btn-gold:hover{background:#D4AA52;transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--navy-800);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--navy-800);background:#fff}
.btn-ghost-light{background:rgba(255,255,255,.07);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-ghost-light:hover{background:rgba(255,255,255,.14)}
.btn-lg{padding:17px 34px;font-size:16px}
.btn-block{width:100%}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.92);
  backdrop-filter:saturate(180%) blur(14px);border-bottom:1px solid var(--line);
}
.nav{display:flex;align-items:center;justify-content:space-between;height:74px;gap:20px}
.brand{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;letter-spacing:-.02em;color:var(--navy-800);flex:none;white-space:nowrap}
.brand .mark{
  width:36px;height:36px;border-radius:9px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--navy-700),var(--navy-900));color:var(--gold);
  font-size:16px;flex:none;font-weight:800;
}
.brand span small{display:block;font-size:9.5px;font-weight:600;letter-spacing:.1em;color:var(--muted);text-transform:uppercase;margin-top:-5px;white-space:nowrap}
.nav-links{display:flex;gap:24px;font-size:14.5px;font-weight:500;color:var(--muted);flex:1;justify-content:center}
.nav-links a{white-space:nowrap}
.nav-links a:hover{color:var(--navy-800)}
.nav-cta{display:flex;align-items:center;gap:12px;flex:none}
.nav-phone{font-weight:700;color:var(--navy-800);font-size:15px;white-space:nowrap}

/* ---------- Hero ---------- */
.hero{
  background:
    radial-gradient(1100px 500px at 78% -10%, rgba(196,154,63,.18), transparent 60%),
    linear-gradient(165deg,var(--navy-900),var(--navy-700) 62%,var(--navy-600));
  color:#fff;padding:88px 0 96px;position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.04) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px);
  background-size:64px 64px;
  -webkit-mask-image:radial-gradient(900px 420px at 80% 0%,#000,transparent 72%);
  mask-image:radial-gradient(900px 420px at 80% 0%,#000,transparent 72%);
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:64px;align-items:center;position:relative;z-index:2}
.free-pill{
  display:inline-flex;align-items:center;gap:9px;padding:8px 18px;border-radius:99px;
  background:rgba(67,209,138,.15);border:1px solid rgba(67,209,138,.4);
  color:#8EEFC0;font-size:13.5px;font-weight:700;margin-bottom:20px;
}
.free-pill .dot{width:8px;height:8px;border-radius:50%;background:#43D18A}
.hero h1{font-size:clamp(33px,4.6vw,55px);margin-bottom:22px;font-weight:800}
.hero h1 em{font-style:normal;color:var(--gold-soft)}
.hero .lead{font-size:18px;color:rgba(255,255,255,.82);margin-bottom:34px;max-width:560px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14.5px;color:rgba(255,255,255,.78)}
.hero-points span{display:flex;align-items:center;gap:8px}
.hero-points i{color:var(--gold);font-style:normal;font-weight:700}

/* Form dang ky tren hero */
.hero-card{
  background:#fff;color:var(--ink);border-radius:18px;padding:30px;
  box-shadow:var(--shadow-lg);border:1px solid rgba(255,255,255,.5);
}
.hero-card h3{font-size:20px;margin-bottom:6px}
.hero-card .sub{color:var(--muted);font-size:14px;margin-bottom:22px}
.field{margin-bottom:15px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--navy-800);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:9px;
  font-family:inherit;font-size:15px;color:var(--ink);background:#fff;transition:.15s;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:0;border-color:var(--navy-600);box-shadow:0 0 0 3px rgba(27,74,130,.12);
}
.field textarea{resize:vertical;min-height:92px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-note{font-size:12.5px;color:var(--muted);margin-top:13px;line-height:1.5}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:#C0392B}

/* ---------- Thanh chi so ---------- */
.stats{background:var(--navy-900);color:#fff;padding:38px 0;border-top:1px solid rgba(255,255,255,.08)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;text-align:center}
.stat b{display:block;font-size:32px;font-weight:800;color:var(--gold);letter-spacing:-.03em}
.stat span{font-size:13.5px;color:rgba(255,255,255,.66)}

/* ---------- The dich vu ---------- */
.cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:32px 28px;transition:.2s ease;position:relative;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#CFD8E4}
.card .ico{
  width:48px;height:48px;border-radius:12px;display:grid;place-items:center;font-size:21px;
  background:linear-gradient(140deg,#EEF3FA,#E3EAF5);color:var(--navy-700);margin-bottom:20px;
}
.card h3{font-size:18.5px;margin-bottom:11px}
.card p{color:var(--muted);font-size:15px}
.card .tag{
  position:absolute;top:22px;right:22px;font-size:11px;font-weight:700;letter-spacing:.06em;
  background:#E6F4EE;color:#0F8A5F;padding:4px 10px;border-radius:99px;text-transform:uppercase;
}

/* ---------- Luyen phong van ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center}
.panel-dark{
  background:linear-gradient(160deg,var(--navy-800),var(--navy-900));color:#fff;
  border-radius:20px;padding:44px;box-shadow:var(--shadow-lg);
}
.panel-dark h3{font-size:19px;margin-bottom:22px;color:var(--gold-soft)}
.qa{border-top:1px solid rgba(255,255,255,.12);padding:16px 0}
.qa:last-child{padding-bottom:0}
.qa .q{font-weight:600;font-size:15.5px;margin-bottom:5px}
.qa .a{font-size:14px;color:rgba(255,255,255,.68)}
.check-list{list-style:none;padding:0;margin:26px 0 0;display:grid;gap:15px}
.check-list li{display:flex;gap:13px;align-items:flex-start;font-size:15.5px;color:var(--muted)}
.check-list li b{color:var(--ink);font-weight:600}
.check-list .tick{
  flex:none;width:23px;height:23px;border-radius:50%;background:#E6F4EE;color:var(--ok);
  display:grid;place-items:center;font-size:12px;font-weight:800;margin-top:2px;
}

/* ---------- Quy trinh ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:30px 26px;position:relative}
.step::before{
  counter-increment:s;content:"0" counter(s);
  font-size:13px;font-weight:800;color:var(--gold);letter-spacing:.1em;display:block;margin-bottom:14px;
}
.step h4{font-size:17px;margin-bottom:9px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- Cam ket ---------- */
.pledge{background:var(--navy-900);color:#fff}
.pledge .section-head h2{color:#fff}
.pledge .section-head p{color:rgba(255,255,255,.72)}
.pledge-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pledge-item{
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius);padding:30px 26px;
}
.pledge-item h4{font-size:17px;margin-bottom:11px;color:var(--gold-soft)}
.pledge-item p{font-size:14.5px;color:rgba(255,255,255,.72)}
.pledge-note{
  margin-top:34px;padding:22px 26px;border-left:3px solid var(--gold);
  background:rgba(196,154,63,.09);border-radius:0 10px 10px 0;
  font-size:15px;color:rgba(255,255,255,.86);
}

/* ---------- FAQ ---------- */
.faq{max-width:840px;margin:0 auto}
.faq details{background:#fff;border:1px solid var(--line);border-radius:12px;margin-bottom:12px;overflow:hidden}
.faq summary{
  padding:20px 24px;font-weight:600;font-size:16.5px;cursor:pointer;list-style:none;
  display:flex;justify-content:space-between;gap:18px;align-items:center;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{content:"+";font-size:22px;color:var(--gold);font-weight:400;flex:none;transition:.2s}
.faq details[open] summary::after{transform:rotate(45deg)}
.faq .body{padding:0 24px 22px;color:var(--muted);font-size:15px}

/* ---------- Lien he ---------- */
.contact-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:start}
.contact-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:36px;box-shadow:var(--shadow-sm)}
.info-line{display:flex;gap:14px;align-items:flex-start;padding:16px 0;border-bottom:1px solid var(--line)}
.info-line:last-child{border-bottom:0}
.info-line .ico{width:40px;height:40px;border-radius:10px;background:#EEF3FA;color:var(--navy-700);display:grid;place-items:center;flex:none;font-size:17px}
.info-line b{display:block;font-size:14px;color:var(--navy-800)}
.info-line span{font-size:14.5px;color:var(--muted)}

/* ---------- Footer ---------- */
.site-footer{background:var(--navy-900);color:rgba(255,255,255,.62);padding:58px 0 30px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:44px;margin-bottom:38px}
.site-footer .brand{color:#fff;margin-bottom:16px}
.site-footer h5{color:#fff;font-size:15px;margin:0 0 15px;font-weight:600}
.site-footer ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.site-footer a:hover{color:var(--gold-soft)}
.disclaimer{
  border-top:1px solid rgba(255,255,255,.1);padding-top:24px;font-size:13.5px;
  color:rgba(255,255,255,.5);line-height:1.7;
}
.disclaimer strong{color:rgba(255,255,255,.78);font-weight:600}

/* ---------- Nut chat noi ---------- */
.fab{
  position:fixed;right:24px;bottom:24px;z-index:80;
  display:flex;align-items:center;gap:11px;padding:15px 24px;border-radius:99px;
  background:var(--navy-800);color:#fff;font-weight:600;font-size:15px;
  box-shadow:0 14px 34px rgba(11,37,69,.34);transition:.2s;
}
.fab:hover{transform:translateY(-2px);background:var(--navy-700)}
.fab .dot{width:9px;height:9px;border-radius:50%;background:#43D18A;box-shadow:0 0 0 0 rgba(67,209,138,.7);animation:pulse 2s infinite}
@keyframes pulse{70%{box-shadow:0 0 0 11px rgba(67,209,138,0)}100%{box-shadow:0 0 0 0 rgba(67,209,138,0)}}

/* =========================================================
   CHAT
   ========================================================= */
.chat-page{height:100dvh;display:flex;flex-direction:column;background:var(--bg)}
.chat-head{
  background:linear-gradient(135deg,var(--navy-800),var(--navy-700));color:#fff;
  padding:15px 22px;display:flex;align-items:center;gap:14px;flex:none;
}
.chat-head .avatar{
  width:44px;height:44px;border-radius:50%;background:rgba(255,255,255,.14);
  display:grid;place-items:center;font-size:18px;color:var(--gold-soft);flex:none;
}
.chat-head b{display:block;font-size:16px}
.chat-head small{font-size:12.5px;color:rgba(255,255,255,.7);display:flex;align-items:center;gap:6px}
.chat-head small .dot{width:7px;height:7px;border-radius:50%;background:#43D18A}
.chat-head .spacer{flex:1}
.chat-head .back{background:none;border:0;color:inherit;font-size:22px;cursor:pointer;display:none;padding:0 4px}

.chat-body{flex:1;overflow-y:auto;padding:24px 20px;display:flex;flex-direction:column;gap:12px}
.bubble{max-width:74%;padding:11px 16px;border-radius:16px;font-size:15px;line-height:1.55;word-wrap:break-word;white-space:pre-wrap}
.bubble.me{align-self:flex-end;background:var(--navy-800);color:#fff;border-bottom-right-radius:5px}
.bubble.them{align-self:flex-start;background:#fff;border:1px solid var(--line);border-bottom-left-radius:5px}
.bubble .time{display:block;font-size:11px;opacity:.6;margin-top:5px}
.sys{align-self:center;background:#E8EDF5;color:var(--muted);font-size:13px;padding:7px 15px;border-radius:99px;max-width:88%;text-align:center}
.typing{align-self:flex-start;display:flex;gap:4px;padding:13px 17px;background:#fff;border:1px solid var(--line);border-radius:16px}
.typing i{width:7px;height:7px;border-radius:50%;background:#9AA7B8;animation:bounce 1.3s infinite}
.typing i:nth-child(2){animation-delay:.18s}
.typing i:nth-child(3){animation-delay:.36s}
@keyframes bounce{0%,60%,100%{transform:translateY(0);opacity:.5}30%{transform:translateY(-5px);opacity:1}}

.quick-row{display:flex;gap:8px;flex-wrap:wrap;padding:0 20px 12px}
.quick{
  background:#fff;border:1px solid var(--line);border-radius:99px;padding:8px 15px;
  font-size:13.5px;font-family:inherit;color:var(--navy-800);cursor:pointer;transition:.15s;
}
.quick:hover{border-color:var(--navy-600);background:#EEF3FA}

.chat-foot{background:#fff;border-top:1px solid var(--line);padding:13px 18px;display:flex;gap:11px;align-items:flex-end;flex:none}
.chat-foot textarea{
  flex:1;border:1px solid var(--line);border-radius:22px;padding:12px 18px;resize:none;
  font-family:inherit;font-size:15px;max-height:130px;line-height:1.5;
}
.chat-foot textarea:focus{outline:0;border-color:var(--navy-600);box-shadow:0 0 0 3px rgba(27,74,130,.12)}
.send{
  width:46px;height:46px;border-radius:50%;border:0;background:var(--navy-800);color:#fff;
  font-size:17px;cursor:pointer;flex:none;transition:.15s;
}
.send:hover{background:var(--navy-700)}
.send:disabled{opacity:.4;cursor:not-allowed}

/* Man hinh bat dau chat */
.gate{flex:1;display:grid;place-items:center;padding:24px}
.gate-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:34px;max-width:430px;width:100%;box-shadow:var(--shadow-md)}
.gate-box h2{font-size:22px;margin-bottom:8px}
.gate-box .sub{color:var(--muted);font-size:14.5px;margin-bottom:24px}

/* =========================================================
   BANG DIEU KHIEN CSKH
   ========================================================= */
.agent-app{height:100dvh;display:grid;grid-template-columns:330px 1fr;background:var(--bg)}
.side{background:#fff;border-right:1px solid var(--line);display:flex;flex-direction:column;min-width:0}
.side-head{padding:17px 20px;border-bottom:1px solid var(--line);display:flex;align-items:center;gap:10px}
.side-head b{font-size:16px;flex:1}
.badge{background:#E6F4EE;color:var(--ok);font-size:12px;font-weight:700;padding:3px 10px;border-radius:99px}
.convo-list{flex:1;overflow-y:auto}
.convo{padding:14px 20px;border-bottom:1px solid var(--line);cursor:pointer;transition:.12s;display:flex;gap:12px;align-items:center}
.convo:hover{background:#F7F9FC}
.convo.active{background:#EEF3FA;border-left:3px solid var(--navy-700);padding-left:17px}
.convo .av{width:40px;height:40px;border-radius:50%;background:linear-gradient(140deg,var(--navy-700),var(--navy-900));color:#fff;display:grid;place-items:center;font-weight:700;font-size:15px;flex:none}
.convo .meta{min-width:0;flex:1}
.convo .row1{display:flex;justify-content:space-between;gap:8px;align-items:baseline}
.convo .nm{font-weight:600;font-size:14.5px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.convo .tm{font-size:11.5px;color:var(--muted);flex:none}
.convo .pv{font-size:13px;color:var(--muted);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;margin-top:2px}
.convo .un{background:#C0392B;color:#fff;font-size:11px;font-weight:700;min-width:19px;height:19px;border-radius:99px;display:grid;place-items:center;padding:0 5px;flex:none}
.empty{padding:44px 24px;text-align:center;color:var(--muted);font-size:14.5px}

.main{display:flex;flex-direction:column;min-width:0}
.main .chat-head{background:#fff;color:var(--ink);border-bottom:1px solid var(--line)}
.main .chat-head .avatar{background:#EEF3FA;color:var(--navy-700)}
.main .chat-head small{color:var(--muted)}
.main .bubble.me{background:var(--navy-700)}
.tagline{font-size:12.5px;color:var(--muted);background:#F1F4F9;padding:3px 10px;border-radius:99px;white-space:nowrap}

.login-screen{height:100dvh;display:grid;place-items:center;background:linear-gradient(160deg,var(--navy-900),var(--navy-700));padding:24px}
.login-box{background:#fff;border-radius:18px;padding:38px;max-width:400px;width:100%;box-shadow:var(--shadow-lg)}
.login-box .brand{margin-bottom:22px}
.login-box h2{font-size:21px;margin-bottom:6px}
.login-box .sub{color:var(--muted);font-size:14.5px;margin-bottom:24px}
.err-txt{color:#C0392B;font-size:14px;font-weight:600;margin-top:12px;display:none}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width:980px){
  .hero-grid,.split,.contact-grid{grid-template-columns:1fr;gap:44px}
  .cards,.steps,.pledge-grid,.stats-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
  .nav-links{display:none}
  .section{padding:66px 0}
  .agent-app{grid-template-columns:1fr}
  .agent-app .main{display:none}
  .agent-app.open .side{display:none}
  .agent-app.open .main{display:flex}
  .agent-app.open .chat-head .back{display:block}
}
@media (max-width:620px){
  .cards,.steps,.pledge-grid,.stats-grid,.footer-grid,.field-row{grid-template-columns:1fr}
  .nav-phone{display:none}
  .hero{padding:56px 0 64px}
  .panel-dark,.contact-box,.hero-card{padding:26px}
  .bubble{max-width:86%}
  .fab{right:16px;bottom:16px;padding:13px 20px}
}