*{ box-sizing:border-box; }

:root{
  --snm-bg:#0b0f17;
  --snm-bg2:#0e1524;
  --snm-surface:rgba(255,255,255,.055);
  --snm-surface-2:rgba(255,255,255,.075);
  --snm-border:rgba(255,255,255,.11);
  --snm-border-2:rgba(255,255,255,.16);
  --snm-text:rgba(255,255,255,.93);
  --snm-muted:rgba(255,255,255,.66);
  --snm-accent:#ff2d2d;
  --snm-accent-soft:rgba(255,45,45,.16);
  --snm-blue-soft:rgba(120,160,255,.16);
  --snm-shadow:0 18px 48px rgba(0,0,0,.34);
  --snm-radius:20px;
  --snm-focus:rgba(255,45,45,.18);
}

html,body{ margin:0; padding:0; min-height:100%; }

body{
  background:
    radial-gradient(1100px 620px at 18% 2%, rgba(255,45,45,.12), transparent 60%),
    radial-gradient(900px 560px at 92% 12%, rgba(120,160,255,.10), transparent 56%),
    linear-gradient(180deg, rgba(255,255,255,.02), transparent 26%),
    var(--snm-bg);
  color:var(--snm-text);
  font-family:"Avenir Next","Segoe UI Variable","Segoe UI",sans-serif;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

a{ color:inherit; }

.snm-ai-topbar{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(11,15,23,.72);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
}

.snm-ai-topbar__inner{
  max-width:1240px;
  margin:0 auto;
  padding:14px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
}

.snm-ai-brand{
  display:flex;
  align-items:center;
  gap:12px;
  text-decoration:none;
  min-width:0;
}

.snm-ai-brand__mark{
  width:44px;
  height:44px;
  border-radius:16px;
  display:grid;
  place-items:center;
  background:linear-gradient(135deg, rgba(255,45,45,.96), rgba(255,45,45,.62));
  color:#fff;
  font-weight:950;
  letter-spacing:.06em;
  box-shadow:0 12px 30px rgba(255,45,45,.20), 0 10px 28px rgba(0,0,0,.28);
}

.snm-ai-brand__text{
  display:flex;
  flex-direction:column;
  gap:3px;
  min-width:0;
}

.snm-ai-brand__text strong{
  font-size:16px;
  line-height:1;
  letter-spacing:.02em;
  color:#fff;
}

.snm-ai-brand__text span{
  font-size:11px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--snm-muted);
}

.snm-ai-topbar__nav{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  justify-content:flex-end;
}

.snm-ai-chip{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:38px;
  padding:0 14px;
  border-radius:999px;
  border:1px solid var(--snm-border);
  background:rgba(255,255,255,.06);
  color:var(--snm-text);
  text-decoration:none;
  font-size:13px;
  font-weight:900;
  letter-spacing:.01em;
  box-shadow:0 8px 22px rgba(0,0,0,.18);
  transition:transform .08s ease, background .12s ease, border-color .12s ease;
}

.snm-ai-chip:hover{
  transform:translateY(-1px);
  background:rgba(255,255,255,.09);
  border-color:var(--snm-border-2);
  color:#fff;
}

.snm-ai-chip--portal{
  background:linear-gradient(135deg, rgba(255,45,45,.94), rgba(255,45,45,.62));
  border-color:rgba(255,45,45,.32);
  box-shadow:0 10px 26px rgba(255,45,45,.12), 0 10px 28px rgba(0,0,0,.24);
}

.snm-ai-main{
  min-height:calc(100vh - 156px);
}

.snm-ai-gate{
  min-height:calc(100vh - 220px);
  display:grid;
  place-items:center;
  padding:26px 18px 34px;
}

.snm-ai-gate__card{
  width:min(700px, 100%);
  padding:34px;
  border-radius:26px;
  border:1px solid var(--snm-border);
  background:linear-gradient(180deg, rgba(255,255,255,.07), rgba(255,255,255,.045));
  box-shadow:var(--snm-shadow);
  backdrop-filter:blur(12px);
}

.snm-ai-gate__eyebrow{
  display:inline-flex;
  align-items:center;
  min-height:30px;
  padding:0 12px;
  border-radius:999px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.74);
  font-size:11px;
  font-weight:900;
  letter-spacing:.14em;
  text-transform:uppercase;
}

.snm-ai-gate__title{
  margin:16px 0 0;
  font-size:38px;
  line-height:1.06;
  letter-spacing:-.03em;
  color:#fff;
}

.snm-ai-gate__text{
  margin:14px 0 0;
  max-width:58ch;
  color:var(--snm-muted);
  font-size:15px;
  line-height:1.68;
}

.snm-ai-gate__warning{
  margin:14px 0 0;
  max-width:58ch;
  padding:14px 16px;
  border-radius:16px;
  border:1px solid rgba(255,45,45,.22);
  background:rgba(255,45,45,.08);
  color:rgba(255,255,255,.84);
  font-size:14px;
  line-height:1.62;
}

.snm-ai-gate__actions{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-top:24px;
}

.snm-ai-gate__btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  padding:0 18px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.06);
  color:#fff;
  text-decoration:none;
  font-size:14px;
  font-weight:950;
  box-shadow:0 8px 22px rgba(0,0,0,.18);
}

.snm-ai-gate__btn--primary{
  background:linear-gradient(135deg, rgba(255,45,45,.96), rgba(255,45,45,.65));
  border-color:rgba(255,45,45,.34);
  box-shadow:0 10px 26px rgba(255,45,45,.12), 0 10px 28px rgba(0,0,0,.24);
}

.snm-ai-footer{
  padding:22px 18px 30px;
}

.snm-ai-footer__inner{
  max-width:1240px;
  margin:0 auto;
  padding:18px 20px;
  border-radius:18px;
  border:1px solid rgba(255,255,255,.08);
  background:linear-gradient(180deg, rgba(255,255,255,.04), rgba(255,255,255,.03));
  color:var(--snm-muted);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  box-shadow:0 10px 28px rgba(0,0,0,.18);
}

.snm-ai-footer__brand{
  font-size:13px;
  font-weight:900;
  letter-spacing:.08em;
  text-transform:uppercase;
  color:#fff;
}

.snm-ai-footer__meta{
  font-size:12px;
}

.snmai-hero{
  background:
    radial-gradient(1100px 620px at 18% 5%, rgba(255,45,45,.13), transparent 60%),
    radial-gradient(900px 520px at 92% 12%, rgba(120,160,255,.11), transparent 56%),
    linear-gradient(180deg, rgba(255,255,255,.03), transparent 24%),
    linear-gradient(180deg, var(--snm-bg2) 0%, var(--snm-bg) 100%);
  color:#fff;
  padding:40px 0 34px;
  margin-bottom:18px;
  border-bottom:1px solid rgba(255,255,255,.08);
}

.snmai-hero__inner,
.snmai-shell{ max-width:1240px; }

.snmai-hero__inner{
  margin:0 auto;
  padding:0 18px;
}

.snmai-hero__brand{
  font-weight:900;
  letter-spacing:.14em;
  text-transform:uppercase;
  font-size:11px;
  color:rgba(255,255,255,.68);
}

.snmai-hero__title{
  font-size:36px;
  line-height:1.08;
  margin:10px 0 0;
  letter-spacing:-.03em;
  color:#fff;
  text-shadow:0 10px 28px rgba(0,0,0,.34);
}

.snmai-hero__sub{
  margin-top:10px;
  font-size:14px;
  line-height:1.55;
  color:rgba(255,255,255,.76);
  max-width:780px;
}

.snmai-shell{
  margin:0 auto;
  padding:0 18px 28px;
}

.snmai-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}

.snmai-tool{
  display:block;
  padding:18px;
  border-radius:22px;
  background:linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.045));
  border:1px solid var(--snm-border);
  box-shadow:var(--snm-shadow);
  text-decoration:none;
  color:var(--snm-text);
  backdrop-filter:blur(12px);
  transition:transform .12s ease, background .12s ease, border-color .12s ease;
}

.snmai-tool:hover{
  transform:translateY(-2px);
  background:linear-gradient(180deg, rgba(255,255,255,.085), rgba(255,255,255,.055));
  border-color:var(--snm-border-2);
  color:#fff;
}

.snmai-tool__icon{
  width:48px;
  height:48px;
  border-radius:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(135deg, rgba(255,45,45,.18), rgba(120,160,255,.14));
  border:1px solid rgba(255,255,255,.10);
  color:#fff;
  font-weight:950;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12);
}

.snmai-tool__name{
  margin-top:12px;
  font-weight:950;
  letter-spacing:-.01em;
  color:#fff;
}

.snmai-tool__desc{
  margin-top:6px;
  font-size:13px;
  line-height:1.45;
  color:var(--snm-muted);
}

.snmai-two{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  align-items:start;
}

.snmai-pane{
  background:linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.045));
  border:1px solid var(--snm-border);
  border-radius:22px;
  box-shadow:var(--snm-shadow);
  overflow:hidden;
  backdrop-filter:blur(12px);
}

.snmai-pane__title{
  padding:16px 16px 12px;
  font-weight:950;
  border-bottom:1px solid rgba(255,255,255,.08);
  background:rgba(255,255,255,.02);
  color:#fff;
}

.snmai-controls{
  padding:14px 16px;
}

.snmai-controls__row{
  display:flex;
  gap:10px;
  flex-wrap:wrap;
  align-items:end;
}

.snmai-field{
  display:flex;
  flex-direction:column;
  gap:6px;
  font-size:12px;
  color:var(--snm-muted);
}

.snmai-select,
.snmai-input{
  height:42px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  padding:0 12px;
  background:rgba(8,12,20,.82);
  color:#fff;
  outline:none;
}

.snmai-select:focus,
.snmai-input:focus{
  box-shadow:0 0 0 4px var(--snm-focus);
  border-color:rgba(255,45,45,.38);
}

.snmai-btn{
  height:42px;
  border-radius:14px;
  padding:0 15px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-weight:950;
  cursor:pointer;
}

.snmai-btn--primary{
  background:linear-gradient(135deg, rgba(255,45,45,.96), rgba(255,45,45,.65));
  border-color:rgba(255,45,45,.34);
  box-shadow:0 10px 26px rgba(255,45,45,.12), 0 10px 28px rgba(0,0,0,.24);
}

.snmai-textarea{
  width:100%;
  min-height:340px;
  border:0;
  padding:16px;
  resize:vertical;
  outline:none;
  font-size:14px;
  line-height:1.62;
  color:#fff;
  background:transparent;
}

.snmai-textarea:focus{
  box-shadow:inset 0 0 0 4px var(--snm-focus);
}

.snmai-hint{
  padding:0 16px 16px;
  font-size:12px;
  color:var(--snm-muted);
}

.snmai-out{
  padding:12px 16px;
  border-top:1px solid rgba(255,255,255,.08);
}

.snmai-out__label{
  font-size:12px;
  color:var(--snm-muted);
  font-weight:900;
  margin-bottom:6px;
}

.snmai-out__body{
  display:flex;
  gap:10px;
  align-items:stretch;
}

.snmai-output{
  width:100%;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(8,12,20,.82);
  padding:11px 12px;
  font-size:14px;
  line-height:1.55;
  outline:none;
  color:#fff;
  direction:ltr;
  text-align:left;
}

.snmai-output--single{ height:42px; }

textarea.snmai-output{
  min-height:118px;
  resize:vertical;
}

.snmai-copy{
  width:96px;
  border-radius:14px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.06);
  color:#fff;
  font-weight:950;
  cursor:pointer;
}

.snmai-copy:hover{
  background:rgba(255,255,255,.10);
}

.snmai-status{
  padding:12px 16px;
  font-size:12px;
  color:var(--snm-muted);
}

.snmai-status.is-err{ color:#ff8f8f; }
.snmai-status.is-ok{ color:#d5e4ff; }

.snmai-card{
  max-width:760px;
  margin:16px auto;
  padding:16px;
  border-radius:18px;
  border:1px solid var(--snm-border);
  background:linear-gradient(180deg, rgba(255,255,255,.065), rgba(255,255,255,.05));
  color:var(--snm-text);
  box-shadow:var(--snm-shadow);
}

.snmai-card--warn{
  border-color:rgba(255,45,45,.26);
}

footer{ color:var(--snm-muted); font-size:12px; }

@media (max-width:1020px){
  .snmai-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); }
  .snmai-two{ grid-template-columns:1fr; }
  .snmai-textarea{ min-height:260px; }
  .snm-ai-footer__inner{ flex-direction:column; align-items:flex-start; }
}

@media (max-width:640px){
  .snm-ai-topbar__inner{ flex-direction:column; align-items:flex-start; }
  .snm-ai-topbar__nav{ justify-content:flex-start; }
  .snm-ai-gate__title{ font-size:30px; }
}

@media (max-width:520px){
  .snmai-grid{ grid-template-columns:1fr; }
  .snmai-hero__title{ font-size:28px; }
  .snmai-btn,
  .snmai-copy{ width:100%; }
  .snmai-out__body{ flex-direction:column; }
  .snm-ai-gate__card{ padding:24px 20px; }
  .snm-ai-gate__btn{ width:100%; }
}