/* Shared design system for the marketing site, auth, admin and legal pages (the app has its own inline styles). */
:root{
  --bg:#0b0d17; --bg2:#12152a; --card:rgba(255,255,255,.045); --card-solid:#161a31; --hover:rgba(255,255,255,.06);
  --border:rgba(255,255,255,.09); --text:#eef0ff; --muted:#8b90b5; --primary:#7c5cff; --primary2:#00d4ff;
  --income:#22c55e; --expense:#ff5c7a; --warn:#f5a524; --gold1:#ffd76a; --gold2:#ff9f43;
  --shadow:0 24px 50px -24px rgba(0,0,0,.7); --radius:22px;
}
[data-theme=light]{
  --bg:#f1f2fa; --bg2:#fff; --card:rgba(255,255,255,.75); --card-solid:#fff; --hover:rgba(30,30,90,.05);
  --border:rgba(30,30,90,.1); --text:#1a1d3a; --muted:#6b7099; --shadow:0 24px 44px -26px rgba(50,50,120,.35);
}
*{box-sizing:border-box;margin:0;padding:0}
img{max-width:100%;height:auto}
html{scroll-behavior:smooth}
body{font-family:'Be Vietnam Pro',system-ui,-apple-system,'Segoe UI',sans-serif;background:var(--bg);color:var(--text);-webkit-font-smoothing:antialiased;overflow-x:hidden;line-height:1.55}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--primary);color:#fff}

.bg-blobs{position:fixed;inset:0;z-index:-1;overflow:hidden;pointer-events:none}
.bg-blobs span{position:absolute;width:560px;height:560px;border-radius:50%;filter:blur(110px);opacity:.3;animation:float 24s ease-in-out infinite}
.bg-blobs span:nth-child(1){background:#7c5cff;top:-200px;left:-140px}
.bg-blobs span:nth-child(2){background:#00d4ff;bottom:-240px;right:-140px;animation-delay:-8s}
.bg-blobs span:nth-child(3){background:#ff5c9a;top:40%;left:45%;width:380px;height:380px;opacity:.16;animation-delay:-15s}
[data-theme=light] .bg-blobs span{opacity:.15}
@keyframes float{0%,100%{transform:none}33%{transform:translate(90px,60px) scale(1.12)}66%{transform:translate(-70px,40px) scale(.94)}}

.container{width:min(1180px,100% - 32px);margin:0 auto}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:20px;letter-spacing:-.02em;text-decoration:none;color:inherit}
.logo img,.logo-img{width:38px!important;height:38px!important;max-width:38px!important;max-height:38px!important;object-fit:contain!important;flex-shrink:0!important;box-shadow:none!important;border-radius:0!important;display:inline-block!important}
.logo i{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;font-style:normal;color:#fff;background:linear-gradient(135deg,var(--primary),var(--primary2));box-shadow:0 10px 26px -8px var(--primary)}

.btn{position:relative;overflow:hidden;display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border-radius:14px;font-weight:600;font-size:15px;transition:transform .2s,box-shadow .3s,background .2s,opacity .2s;white-space:nowrap}
.btn:active{transform:scale(.96)}
.btn:disabled{opacity:.55;cursor:not-allowed}
.btn.primary{color:#fff;background:linear-gradient(135deg,var(--primary),#9a7dff);box-shadow:0 14px 30px -12px var(--primary)}
.btn.primary:hover:not(:disabled){transform:translateY(-2px);box-shadow:0 18px 36px -10px var(--primary)}
.btn.gold{color:#2a1a00;background:linear-gradient(135deg,var(--gold1),var(--gold2));box-shadow:0 14px 30px -12px var(--gold2)}
.btn.gold:hover:not(:disabled){transform:translateY(-2px)}
.btn.ghost{background:var(--hover);border:1px solid var(--border)}
.btn.ghost:hover{background:var(--border)}
.btn.danger{color:#fff;background:linear-gradient(135deg,#ff5c7a,#ff8a65)}
.btn.sm{padding:8px 13px;font-size:13px;border-radius:11px}
.btn.lg{padding:16px 28px;font-size:17px;border-radius:16px}
.btn .spin{width:16px;height:16px;border-radius:50%;border:2px solid currentColor;border-right-color:transparent;animation:spin .7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}

.card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius);padding:24px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);box-shadow:var(--shadow)}
.muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:5px;padding:4px 10px;border-radius:99px;font-size:12px;font-weight:700;white-space:nowrap}
.badge.green{background:rgba(34,197,94,.14);color:var(--income)}
.badge.red{background:rgba(255,92,122,.14);color:var(--expense)}
.badge.amber{background:rgba(245,165,36,.15);color:var(--warn)}
.badge.violet{background:rgba(124,92,255,.16);color:#a48bff}
.badge.gray{background:var(--hover);color:var(--muted)}
.badge.gold{background:linear-gradient(135deg,var(--gold1),var(--gold2));color:#2a1a00}

/* Forms */
.field{display:flex;flex-direction:column;gap:7px;margin-bottom:16px}
.field>span{font-size:13px;color:var(--muted);font-weight:500}
.input{width:100%;padding:13px 15px;border-radius:13px;border:1px solid var(--border);background:var(--hover);outline:0;transition:border-color .2s,box-shadow .2s;color-scheme:dark}
[data-theme=light] .input{color-scheme:light}
.input:focus{border-color:var(--primary);box-shadow:0 0 0 4px color-mix(in srgb,var(--primary) 18%,transparent)}
select.input option{background:var(--card-solid)}
textarea.input{min-height:110px;resize:vertical}
.pw{position:relative}.pw .input{padding-right:48px}
.pw button{position:absolute;right:8px;top:50%;transform:translateY(-50%);width:34px;height:34px;border-radius:10px;color:var(--muted)}
.pw button:hover{background:var(--hover)}
.err{color:var(--expense);font-size:13.5px;min-height:20px;margin:-4px 0 10px}
.shake{animation:shake .45s}
@keyframes shake{20%,60%{transform:translateX(-8px)}40%,80%{transform:translateX(8px)}}

/* Switch */
.switch{width:46px;height:26px;border-radius:99px;background:var(--hover);border:1px solid var(--border);position:relative;transition:background .3s;flex:none}
.switch::after{content:"";position:absolute;top:2px;left:2px;width:20px;height:20px;border-radius:50%;background:#fff;box-shadow:0 2px 6px rgba(0,0,0,.3);transition:transform .4s cubic-bezier(.3,1.6,.5,1)}
.switch.on{background:linear-gradient(135deg,var(--primary),var(--primary2))}
.switch.on::after{transform:translateX(20px)}

/* Modal & toast */
.modal-wrap{position:fixed;inset:0;z-index:60;display:grid;place-items:center;padding:16px;background:rgba(5,6,18,.6);backdrop-filter:blur(8px);opacity:0;pointer-events:none;transition:opacity .3s}
.modal-wrap.open{opacity:1;pointer-events:auto}
.modal{width:min(560px,100%);max-height:calc(100vh - 32px);overflow:auto;background:var(--card-solid);border:1px solid var(--border);border-radius:24px;padding:26px;transform:translateY(40px) scale(.94);transition:transform .5s cubic-bezier(.2,1.25,.4,1)}
.modal-wrap.open .modal{transform:none}
.modal h2{font-size:20px;margin-bottom:16px;display:flex;justify-content:space-between;align-items:center;gap:12px}
.modal-foot{display:flex;justify-content:flex-end;gap:10px;margin-top:20px;flex-wrap:wrap}
.x{width:34px;height:34px;border-radius:10px;color:var(--muted);font-size:20px}
.x:hover{background:var(--hover);color:var(--text)}
.toasts{position:fixed;right:20px;bottom:20px;z-index:90;display:flex;flex-direction:column;gap:10px;align-items:flex-end}
.toast{display:flex;align-items:center;gap:10px;padding:13px 16px;border-radius:14px;background:var(--card-solid);border:1px solid var(--border);border-left:4px solid var(--tc,var(--primary));box-shadow:0 20px 40px -16px rgba(0,0,0,.5);font-size:14px;font-weight:500;max-width:380px;animation:toastIn .5s cubic-bezier(.2,1.3,.4,1)}
.toast.hide{animation:toastOut .3s forwards}
@keyframes toastIn{from{opacity:0;transform:translateX(60px)}}
@keyframes toastOut{to{opacity:0;transform:translateX(60px)}}

/* Reveal on scroll */
.reveal{opacity:0;transform:translateY(30px);transition:opacity .8s cubic-bezier(.2,.8,.2,1),transform .8s cubic-bezier(.2,.8,.2,1);transition-delay:var(--d,0s)}
.reveal.in{opacity:1;transform:none}

@media (max-width:640px){.toasts{left:16px;right:16px;align-items:stretch}.toast{max-width:none}.card{padding:18px}}
@media (prefers-reduced-motion:reduce){*,*::before,*::after{animation-duration:.01ms!important;transition-duration:.01ms!important}.reveal{opacity:1;transform:none}}

/* ==========================================================================
   Comprehensive Legal & Trust Footer (Thực thi tuân thủ & Bảo hộ nền tảng)
   ========================================================================== */
.site-footer{position:relative;margin-top:80px;padding:48px 0 32px;background:color-mix(in srgb,var(--bg2) 80%,transparent);border-top:1px solid var(--border);color:var(--muted);font-size:14px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px)}
.site-footer a{color:var(--muted);transition:all .2s;text-decoration:none}
.site-footer a:hover{color:var(--text)}

/* Columns Navigation: 5 CỘT DÀN ĐỀU BÊN TRONG KHUNG CONTAINER */
.sf-nav-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:24px;width:100%;margin-bottom:32px;padding-bottom:28px;border-bottom:1px solid var(--border)}
.sf-col h4{font-size:14.5px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:-.01em;display:flex;align-items:center;gap:6px}
.sf-col ul{list-style:none;display:grid;gap:10px}
.sf-col li a{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--muted)}
.sf-col li a::before{content:"›";font-size:16px;font-weight:800;color:#7c5cff;line-height:1;transition:transform .2s}
.sf-col li a:hover{color:var(--text);transform:translateX(4px)}
.sf-col li a:hover::before{color:var(--primary2);transform:translateX(2px)}

/* Payment methods & Security row (Nằm gọn trong container) */
.sf-pay-row{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;padding:16px 24px;border-radius:16px;background:var(--hover);border:1px solid var(--border);margin-bottom:30px;width:100%}
.sf-pay-badges{display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.sf-pay-pill{padding:5px 11px;border-radius:8px;font-size:12px;font-weight:700;background:var(--card-solid);border:1px solid var(--border);color:var(--text);display:inline-flex;align-items:center;gap:6px;box-shadow:0 2px 6px rgba(0,0,0,.15)}
.sf-secure-badge{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;color:var(--income);margin-left:auto}

/* Legal compliance box (Nằm gọn trong container) */
.sf-legal-card{background:var(--card-solid);border:1px solid var(--border);border-radius:20px;padding:26px 30px;margin-bottom:30px;box-shadow:var(--shadow);width:100%}
.sf-legal-head{display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--border)}
.sf-legal-title{font-size:14.5px;font-weight:800;letter-spacing:.02em;color:#fff;background:linear-gradient(135deg,#7c5cff,#00d4ff);padding:6px 14px;border-radius:99px;display:inline-flex;align-items:center;gap:7px;box-shadow:0 6px 16px -6px #7c5cff}
.sf-legal-tags{display:flex;gap:7px;flex-wrap:wrap}
.sf-legal-tag{display:inline-flex;align-items:center;gap:5px;font-size:11.5px;font-weight:700;padding:4px 9px;border-radius:7px;background:rgba(34,197,94,.1);color:#4ade80;border:1px solid rgba(34,197,94,.25)}

.sf-legal-body{display:grid;grid-template-columns:1fr 1fr;gap:28px;font-size:13px;line-height:1.75;text-align:justify}
.sf-legal-col h5{font-size:13.5px;font-weight:800;color:var(--text);margin-bottom:8px;display:flex;align-items:center;gap:6px}
.sf-legal-col p{color:var(--muted);margin-bottom:10px}
.sf-legal-col strong{color:var(--text)}
.sf-legal-col .highlight-warn{background:rgba(245,165,36,.09);border-left:3px solid var(--warn);padding:8px 12px;border-radius:0 8px 8px 0;margin-top:10px;font-size:12.5px;color:var(--text)}

.sf-legal-foot{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border);display:flex;gap:16px;align-items:center;flex-wrap:wrap;font-size:12.5px}
.sf-legal-foot b{color:var(--text);display:inline-flex;align-items:center;gap:5px}
.sf-legal-foot a{color:#a48bff;font-weight:600;display:inline-flex;align-items:center;gap:4px}
.sf-legal-foot a:hover{text-decoration:underline;color:var(--primary2)}

/* Bottom bar (Trải rộng 100%, 2 bên cân đối sát mép) */
.sf-bottom{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap;padding-top:22px;border-top:1px solid var(--border);font-size:13px;width:100%}
.sf-bottom-left{display:flex;flex-direction:column;gap:6px}
.sf-bottom-left p{color:var(--muted);font-size:12.5px;line-height:1.6}
.sf-bottom-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.sf-status{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:99px;background:var(--hover);border:1px solid var(--border);font-weight:600;color:var(--income);font-size:12.5px}
.sf-status-dot{width:8px;height:8px;border-radius:50%;background:var(--income);box-shadow:0 0 0 0 var(--income);animation:ping 2s infinite}
.sf-totop{width:36px;height:36px;border-radius:10px;display:inline-grid;place-items:center;background:var(--hover);border:1px solid var(--border);color:var(--text);font-weight:700;transition:all .2s;cursor:pointer}
.sf-totop:hover{background:var(--border);transform:translateY(-2px);color:var(--primary2)}

@media (max-width:960px){
  .sf-legal-body{grid-template-columns:1fr}
  .sf-nav-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
}
@media (max-width:640px){
  .site-footer{padding:36px 0 24px}
  .sf-nav-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .sf-pay-row,.sf-bottom{flex-direction:column;align-items:flex-start}
  .sf-secure-badge{margin-left:0}
  .sf-legal-card{padding:18px 20px}
}
@media (max-width:440px){
  .sf-nav-grid{grid-template-columns:1fr;gap:16px}
}