:root{
  --bg0:#070910;
  --bg1:#0b1224;
  --card:rgba(255,255,255,.06);
  --card2:rgba(255,255,255,.08);
  --stroke:rgba(255,255,255,.12);
  --text:#eaf0ff;
  --muted:rgba(234,240,255,.72);
  --muted2:rgba(234,240,255,.55);
  --good:#4fffb8;
  --bad:#ff5a7a;
  --a:#7c5cff;
  --b:#19d3ff;
  --c:#2bff9a;
  --shadow: 0 20px 80px rgba(0,0,0,.55);
  --r: 18px;
}

*{box-sizing:border-box}
html,body{height:100%}
body{
  margin:0;
  font-family:Inter,system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
  color:var(--text);
  background: radial-gradient(1200px 900px at 30% 15%, rgba(124,92,255,.17), transparent 60%),
              radial-gradient(1200px 900px at 80% 10%, rgba(25,211,255,.14), transparent 55%),
              linear-gradient(180deg,var(--bg0),var(--bg1));
  overflow-x:hidden;
}

/* Better mobile viewport behavior (iOS safe area etc.) */
body{padding-bottom: env(safe-area-inset-bottom)}

a{color:inherit;text-decoration:none}

.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);
  border:0;
}

.bg{position:fixed;inset:0;pointer-events:none;z-index:-1}
.bg__grid{
  position:absolute;inset:-2px;
  background-image:
    linear-gradient(to right, rgba(255,255,255,.055) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(255,255,255,.055) 1px, transparent 1px);
  background-size: 64px 64px;
  transform:translateZ(0);
  opacity:.28;
  mask-image: radial-gradient(650px 420px at 25% 15%, black 30%, transparent 70%);
}
.bg__glow{
  position:absolute;
  width:900px;height:900px;
  filter:blur(70px);
  opacity:.7;
  transform:translateZ(0);
  animation: floaty 10s ease-in-out infinite;
}
.bg__glow--a{left:-260px;top:-320px;background:radial-gradient(circle at 30% 30%, rgba(124,92,255,.9), transparent 60%)}
.bg__glow--b{right:-380px;top:-360px;background:radial-gradient(circle at 30% 30%, rgba(25,211,255,.85), transparent 60%); animation-delay:-2.4s}
.bg__stars{position:absolute;inset:0;opacity:.9}

@keyframes floaty{
  0%,100%{transform:translate3d(0,0,0) scale(1)}
  50%{transform:translate3d(0,18px,0) scale(1.02)}
}

.glass{
  background:linear-gradient(180deg, rgba(255,255,255,.08), rgba(255,255,255,.045));
  border:1px solid var(--stroke);
  border-radius:var(--r);
  box-shadow: var(--shadow);
  backdrop-filter: blur(14px);
}

.topbar{
  position:sticky;top:0;z-index:10;
  background: linear-gradient(180deg, rgba(7,9,16,.72), rgba(7,9,16,.32));
  border-bottom:1px solid rgba(255,255,255,.07);
  backdrop-filter: blur(10px);
}
.topbar__inner{
  max-width:1100px;
  margin:0 auto;
  padding:16px 18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.topbar--app .topbar__inner{max-width:1200px}

.brand{display:flex;align-items:center;gap:10px}
.brand__mark{
  width:34px;height:34px;border-radius:12px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), transparent 45%),
    conic-gradient(from 220deg, var(--a), var(--b), var(--c), var(--a));
  box-shadow: 0 10px 30px rgba(124,92,255,.18);
  position:relative;
  overflow:hidden;
}
.brand__mark::after{
  content:"";
  position:absolute;inset:-30%;
  background:linear-gradient(120deg, transparent 40%, rgba(255,255,255,.22), transparent 60%);
  transform:translateX(-35%) rotate(12deg);
  animation: shimmer 2.8s ease-in-out infinite;
}
@keyframes shimmer{
  0%,100%{transform:translateX(-45%) rotate(12deg);opacity:.55}
  50%{transform:translateX(45%) rotate(12deg);opacity:.9}
}
.brand__text{font-weight:700;letter-spacing:.2px}

.nav{display:flex;gap:18px;align-items:center}
.nav__link{color:var(--muted);font-weight:600;font-size:14px;transition:color .2s ease}
.nav__link:hover{color:var(--text)}

.wrap{max-width:1100px;margin:0 auto;padding:44px 18px 70px}

.hero{
  display:grid;
  grid-template-columns: 1.15fr .85fr;
  gap:30px;
  align-items:center;
  padding-top:18px;
}
@media (max-width: 960px){
  .hero{grid-template-columns:1fr;gap:22px}
}

.chip{
  display:inline-flex;
  align-items:center;
  gap:10px;
  border:1px solid rgba(255,255,255,.12);
  border-radius:999px;
  padding:10px 14px;
  background:rgba(255,255,255,.05);
  color:var(--muted);
  font-weight:600;
  font-size:13px;
}
.chip__dot{
  width:10px;height:10px;border-radius:50%;
  background: radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), transparent 55%),
              linear-gradient(180deg, rgba(43,255,154,1), rgba(25,211,255,1));
  box-shadow: 0 0 0 6px rgba(43,255,154,.12), 0 0 30px rgba(25,211,255,.25);
  animation: pulse 1.6s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{transform:scale(1)}
  50%{transform:scale(1.16)}
}

.hero__title{
  margin:16px 0 10px;
  font-size:52px;
  line-height:1.05;
  letter-spacing:-.02em;
}
@media (max-width: 960px){
  .hero__title{font-size:42px}
}
.grad{
  background:linear-gradient(90deg, rgba(124,92,255,1), rgba(25,211,255,1), rgba(43,255,154,1));
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero__subtitle{color:var(--muted);font-size:16px;line-height:1.6;max-width:58ch}

.hero__cta{display:flex;gap:12px;margin-top:18px;flex-wrap:wrap}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  border-radius:14px;
  padding:12px 16px;
  border:1px solid rgba(255,255,255,.12);
  font-weight:700;
  font-size:14px;
  letter-spacing:.1px;
  transition: transform .15s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease;
  user-select:none;
}
.btn:active{transform:translateY(1px)}
.btn--primary{
  background:linear-gradient(135deg, rgba(124,92,255,.95), rgba(25,211,255,.92));
  border-color: rgba(255,255,255,.18);
  box-shadow: 0 14px 40px rgba(25,211,255,.18), 0 20px 70px rgba(124,92,255,.16);
}
.btn--primary:hover{transform:translateY(-1px)}
.btn--ghost{
  background:rgba(255,255,255,.05);
  color:var(--text);
}
.btn--ghost:hover{background:rgba(255,255,255,.075)}
.btn__arrow{opacity:.95}

.mini-stats{display:flex;gap:18px;margin-top:22px;flex-wrap:wrap}
.mini-stats__item{
  padding:12px 14px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  min-width: 160px;
}
.mini-stats__k{font-weight:800;letter-spacing:-.01em}
.mini-stats__v{color:var(--muted);margin-top:4px;font-weight:600;font-size:13px}

.card{padding:16px;position:relative;transform-style:preserve-3d}
.card--tilt{will-change:transform}
.card__top{display:flex;align-items:center;justify-content:space-between}
.pill{
  font-weight:800;font-size:12px;
  padding:8px 10px;border-radius:999px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:rgba(234,240,255,.86);
}
.dots{display:flex;gap:6px;opacity:.7}
.dots span{width:8px;height:8px;border-radius:50%;background:rgba(255,255,255,.18)}
.card__body{
  margin-top:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:linear-gradient(180deg, rgba(0,0,0,.25), rgba(0,0,0,.14));
  padding:14px;
  position:relative;
  overflow:hidden;
}
.scanline{
  position:absolute;left:-10%;top:-35%;
  width:120%;height:18%;
  background:linear-gradient(180deg, transparent, rgba(255,255,255,.12), transparent);
  transform:rotate(8deg);
  animation: scan 3.8s ease-in-out infinite;
}
@keyframes scan{
  0%,100%{transform:translateY(-25%) rotate(8deg);opacity:.25}
  50%{transform:translateY(120%) rotate(8deg);opacity:.75}
}
.lines{display:flex;flex-direction:column;gap:10px}
.line{font-weight:650;font-size:13px;color:rgba(234,240,255,.88)}
.muted{color:rgba(234,240,255,.55);font-weight:750;margin-right:6px}
.pulsebar{
  height:8px;border-radius:99px;margin-top:14px;
  background:linear-gradient(90deg, rgba(124,92,255,1), rgba(25,211,255,1), rgba(43,255,154,1));
  filter: saturate(1.1);
  animation: bar 2.4s ease-in-out infinite;
}
@keyframes bar{
  0%,100%{transform:scaleX(.82);opacity:.7}
  50%{transform:scaleX(1);opacity:1}
}

.section{margin-top:56px}
.section__title{margin:0;font-size:26px;letter-spacing:-.01em}
.section__subtitle{margin:10px 0 0;color:var(--muted);max-width:68ch;line-height:1.6}
.grid{
  margin-top:18px;
  display:grid;
  grid-template-columns: repeat(3, minmax(0,1fr));
  gap:14px;
}
@media (max-width: 960px){
  .grid{grid-template-columns:1fr}
}
.feat{padding:18px}
.feat__icon{font-size:20px}
.feat__title{font-weight:850;margin-top:10px}
.feat__text{color:var(--muted);margin-top:8px;line-height:1.6}

.section--how{margin-top:44px}
.how{padding:18px}
.steps{margin:12px 0 0;padding-left:18px;color:var(--muted);line-height:1.7}
.how__cta{margin-top:16px;display:flex;gap:12px;flex-wrap:wrap}

.footer{margin-top:60px}
.footer__inner{
  display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;
  color:rgba(234,240,255,.62);
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:22px;
}
.footer__links{display:flex;gap:14px}
.footer__links a{color:rgba(234,240,255,.72)}
.footer__links a:hover{color:rgba(234,240,255,.95)}

/* App layout */
.app{
  max-width:1200px;
  margin:0 auto;
  padding:22px 18px 26px;
  display:grid;
  grid-template-columns: 320px 1fr;
  gap:14px;
}
@media (max-width: 980px){
  .app{grid-template-columns:1fr}
  .sidebar{display:none}
}
.sidebar{padding:16px;position:sticky;top:80px;align-self:start}
.sidebar__title{font-weight:900;letter-spacing:-.01em}
.sidebar__hint{margin-top:10px;color:var(--muted);line-height:1.6;font-weight:600;font-size:13px}
.sidebar__divider{height:1px;background:rgba(255,255,255,.08);margin:14px 0}
.sidebar__meta{display:flex;flex-direction:column;gap:10px}
.meta-row{display:flex;justify-content:space-between;gap:12px;color:var(--muted)}
.meta-row__k{font-weight:800;font-size:12px;color:rgba(234,240,255,.56)}
.meta-row__v{font-weight:900;font-size:12px;color:rgba(234,240,255,.86)}

.topbar__right{display:flex;align-items:center;gap:10px}
.iconbtn{
  height:38px;min-width:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:rgba(234,240,255,.92);
  font-weight:900;
  cursor:pointer;
  transition: background .2s ease, transform .15s ease, border-color .2s ease;
}
.iconbtn:hover{background:rgba(255,255,255,.075)}
.iconbtn:active{transform:translateY(1px)}

.chat{
  display:flex;
  flex-direction:column;
  min-height: calc(100dvh - 140px);
}
.chat__header{
  padding:14px 16px;
  border-bottom:1px solid rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.chat__title{font-weight:950;letter-spacing:-.01em}
.chat__status{display:flex;align-items:center;gap:10px;color:var(--muted);font-weight:700;font-size:12px}
.dot{width:10px;height:10px;border-radius:50%;background:rgba(255,255,255,.18);box-shadow:none}
.dot.dot--good{background:var(--good);box-shadow:0 0 0 6px rgba(79,255,184,.12)}
.dot.dot--bad{background:var(--bad);box-shadow:0 0 0 6px rgba(255,90,122,.12)}
.dot.dot--busy{
  background:linear-gradient(135deg, rgba(124,92,255,1), rgba(25,211,255,1));
  box-shadow:0 0 0 6px rgba(25,211,255,.10);
  animation: spin 1.1s linear infinite;
}
@keyframes spin{from{transform:rotate(0)}to{transform:rotate(360deg)}}

.chat__messages{
  padding:14px 14px 0;
  overflow:auto;
  flex:1;
}
.msg{
  display:grid;
  grid-template-columns: 42px 1fr;
  gap:10px;
  padding:10px 8px;
  border-radius:16px;
  margin-bottom:10px;
}
.msg:hover{background:rgba(255,255,255,.03)}
.avatar{
  width:42px;height:42px;border-radius:14px;
  border:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:center;
  font-weight:950;
  color:rgba(234,240,255,.92);
}
.avatar--user{background:rgba(255,255,255,.05)}
.avatar--bot{
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), transparent 45%),
    conic-gradient(from 220deg, var(--a), var(--b), var(--c), var(--a));
}
.bubble{
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.14);
  border-radius:16px;
  padding:12px 12px;
  line-height:1.6;
  color:rgba(234,240,255,.88);
  white-space:pre-wrap;
  word-break:break-word;
}
.msg--assistant .bubble{background:linear-gradient(180deg, rgba(0,0,0,.16), rgba(0,0,0,.10))}
.msg__meta{margin-top:8px;color:rgba(234,240,255,.52);font-weight:750;font-size:12px}

.composer{
  padding:12px;
  border-top:1px solid rgba(255,255,255,.08);
  display:flex;gap:10px;align-items:flex-end;
}
.composer__left{flex:1;min-width:0}
.composer__input{
  width:100%;
  resize:none;
  padding:12px 12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:rgba(234,240,255,.92);
  font: 600 14px/1.5 Inter, system-ui, sans-serif;
  outline:none;
}
.composer__input:focus{border-color: rgba(25,211,255,.36); box-shadow: 0 0 0 6px rgba(25,211,255,.10)}
.composer__send{height:44px;white-space:nowrap}
.composer__sub{
  display:flex;align-items:center;gap:10px;
  margin-top:8px;
  color:rgba(234,240,255,.55);
  font-weight:750;
  font-size:12px;
}
.sep{opacity:.7}
.linkbtn{
  appearance:none;border:0;background:transparent;
  color:rgba(234,240,255,.78);
  font-weight:850;
  cursor:pointer;
  padding:0;
}
.linkbtn:hover{color:rgba(234,240,255,.98)}

/* Loader */
.loader{
  position:fixed;inset:0;z-index:999;
  display:flex;align-items:center;justify-content:center;
  background: radial-gradient(900px 600px at 20% 10%, rgba(124,92,255,.18), transparent 60%),
              radial-gradient(900px 600px at 85% 20%, rgba(25,211,255,.14), transparent 60%),
              rgba(7,9,16,.72);
  backdrop-filter: blur(10px);
  transition: opacity .22s ease, visibility .22s ease;
}
.loader[aria-hidden="true"]{opacity:0;visibility:hidden}
.loader__inner{padding:18px 18px 16px; width:min(360px, calc(100vw - 40px)); text-align:center}
.loader__mark{
  width:54px;height:54px;border-radius:18px;margin:0 auto 12px;
  background:
    radial-gradient(circle at 30% 30%, rgba(255,255,255,.9), transparent 45%),
    conic-gradient(from 220deg, var(--a), var(--b), var(--c), var(--a));
  position:relative;overflow:hidden;
  box-shadow: 0 18px 60px rgba(124,92,255,.18);
}
.loader__mark::after{
  content:"";
  position:absolute;inset:-35%;
  background:linear-gradient(120deg, transparent 40%, rgba(255,255,255,.22), transparent 60%);
  transform:translateX(-35%) rotate(12deg);
  animation: shimmer 2.4s ease-in-out infinite;
}
.loader__title{font-weight:950;letter-spacing:-.01em}
.loader__sub{margin-top:6px;color:rgba(234,240,255,.72);font-weight:700;font-size:13px}
.loader__bar{
  height:10px;border-radius:99px;margin-top:14px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  overflow:hidden;
}
.loader__bar span{
  display:block;height:100%;width:40%;
  background:linear-gradient(90deg, rgba(124,92,255,1), rgba(25,211,255,1), rgba(43,255,154,1));
  animation: loadbar 1.1s ease-in-out infinite;
}
@keyframes loadbar{
  0%{transform:translateX(-110%)}
  100%{transform:translateX(260%)}
}

/* Modal + form */
.modal{position:fixed;inset:0;z-index:60;display:none}
.modal[aria-hidden="false"]{display:block}
.modal__backdrop{position:absolute;inset:0;background:rgba(0,0,0,.55);backdrop-filter: blur(8px)}
.modal__panel{
  position:relative;
  width:min(520px, calc(100vw - 26px));
  margin: 88px auto 0;
  padding:14px;
}

/* Mobile tweaks */
@media (max-width: 520px){
  .topbar__inner{padding:12px 12px}
  .wrap{padding:28px 14px 58px}

  .hero__title{font-size:36px}
  .hero__subtitle{font-size:15px}

  .nav{gap:12px}
  .nav__link{font-size:13px}

  .app{padding:12px 10px 14px; gap:10px}
  .chat{min-height: calc(100dvh - 108px)}
  .chat__header{padding:12px 12px}
  .chat__messages{padding:12px 10px 0}

  .msg{grid-template-columns: 38px 1fr; gap:10px; padding:10px 6px}
  .avatar{width:38px;height:38px;border-radius:13px}
  .bubble{padding:11px 11px}

  .composer{padding:10px; gap:10px; padding-bottom: calc(10px + env(safe-area-inset-bottom))}
  .composer__send{height:44px; padding:12px 14px}

  .iconbtn{height:42px; min-width:42px; border-radius:14px}

  .modal__panel{margin: 70px auto 0; padding:12px}
  .field__input{height:46px}
  .btn{padding:12px 14px;border-radius:16px}
  .mini-stats__item{min-width: 140px}
}

@media (max-width: 380px){
  .hero__title{font-size:32px}
  .mini-stats__item{min-width: 130px}
  .btn--ghost{display:none}
}
.modal__top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.modal__title{font-weight:950;letter-spacing:-.01em}
.modal__body{margin-top:12px}
.notice{
  padding:12px 12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(255,255,255,.04);
  color:rgba(234,240,255,.78);
  font-weight:700;
  line-height:1.5;
}
.notice--bad{border-color: rgba(255,90,122,.30); background: rgba(255,90,122,.07)}
.notice--good{border-color: rgba(79,255,184,.24); background: rgba(79,255,184,.06)}
.form{margin-top:12px;display:flex;flex-direction:column;gap:12px}
.field{display:flex;flex-direction:column;gap:8px}
.field__label{font-weight:900;font-size:12px;color:rgba(234,240,255,.66)}
.field__input{
  height:44px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.05);
  color:rgba(234,240,255,.92);
  padding:0 12px;
  font: 650 14px/1.2 Inter, system-ui, sans-serif;
  outline:none;
}
.field__input:focus{border-color: rgba(25,211,255,.36); box-shadow: 0 0 0 6px rgba(25,211,255,.10)}
.profileCard{
  margin-top:12px;
  padding:12px;
  border-radius:16px;
  border:1px solid rgba(255,255,255,.10);
  background:rgba(0,0,0,.14);
}
.profileCard__row{display:flex;justify-content:space-between;gap:12px;margin-top:8px}
.profileCard__row:first-child{margin-top:0}
.profileCard__k{color:rgba(234,240,255,.58);font-weight:900;font-size:12px}
.profileCard__v{font-weight:900}
.profileCard__hint{margin-top:10px;color:rgba(234,240,255,.58);font-weight:750;font-size:12px}

/* Entrance motion */
.page--landing .hero__left{animation: inUp .7s cubic-bezier(.2,.9,.2,1) both}
.page--landing .hero__right{animation: inUp .8s cubic-bezier(.2,.9,.2,1) .06s both}
@keyframes inUp{
  from{opacity:0;transform:translateY(16px)}
  to{opacity:1;transform:translateY(0)}
}