:root{
  --bg:#0a0a0b; --fg:#f4f1ea; --mute:#8a877f; --line:#252527; --card:#121214; --field:#18181b;
  --acid:#3d7bff; --on-acid:#fff; --red:#ff6b4a;
  --display:'Unbounded',sans-serif; --serif:'Instrument Serif',serif;
  --mono:'JetBrains Mono',monospace; --fa:'Vazirmatn',sans-serif;
}
html.inv{filter:invert(1) hue-rotate(180deg)}
*{box-sizing:border-box;margin:0;padding:0}
body{background:var(--bg);color:var(--fg);font-family:var(--display);overflow-x:hidden;min-height:100vh}
[dir=rtl] body{font-family:var(--fa)}
body::before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.05;z-index:50;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence baseFrequency='.9' numOctaves='3'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
a{color:inherit}
.wrap{max-width:1100px;margin:0 auto;padding:0 24px}

/* nav */
nav{display:flex;align-items:center;justify-content:space-between;gap:12px 16px;padding:24px 0;flex-wrap:wrap}
.logo{display:flex;align-items:center;gap:12px;font-family:var(--display);font-weight:900;font-size:18px;letter-spacing:-.02em;white-space:nowrap;text-decoration:none}
.mark{width:38px;height:38px;border-radius:11px;display:block;transition:transform .5s cubic-bezier(.3,1.6,.5,1)}
.logo:hover .mark{transform:rotate(-12deg) scale(1.06)}
@keyframes spin{to{transform:rotate(360deg)}}
.links{display:flex;gap:6px}
.links a{text-decoration:none;font-size:13px;color:var(--mute);padding:8px 12px;border-radius:10px}
.links a:hover{color:var(--fg)}.links a.on{color:var(--fg);background:var(--card)}
.tools{display:flex;gap:8px}
.pill{font-family:var(--mono);font-size:12px;background:none;color:var(--fg);border:1px solid var(--line);border-radius:99px;padding:9px 14px;cursor:pointer;white-space:nowrap}
[dir=rtl] .pill{font-family:var(--fa)}
.pill:hover{background:var(--fg);color:var(--bg)}

/* hero */
.hero{padding:44px 0 34px}
h1{font-size:clamp(40px,6.4vw,86px);line-height:.95;font-weight:900;letter-spacing:-.045em}
h1 em{font-family:var(--serif);font-style:italic;font-weight:400;letter-spacing:-.02em;color:var(--acid)}
h1 .flip{display:inline-block;transform:scaleY(-1);color:transparent;-webkit-text-stroke:2px var(--fg)}
[dir=rtl] h1{font-family:var(--fa);letter-spacing:0;line-height:1.25;font-size:clamp(40px,6vw,80px)}
[dir=rtl] h1 em{font-family:var(--fa);font-style:normal;font-weight:300}
.sub{margin-top:16px;color:var(--mute);font-size:14px}
[dir=rtl] .sub{font-size:16px}

/* card shell */
.conv,.card{border:1px solid var(--line);border-radius:28px;background:var(--card)}
.conv{box-shadow:0 40px 120px -50px rgba(61,123,255,.28);margin-bottom:80px;overflow:hidden}
.tabs{display:flex;gap:6px;padding:14px;border-bottom:1px solid var(--line);overflow-x:auto;scrollbar-width:none}
.tabs::-webkit-scrollbar{display:none}
.tab{flex:none;display:flex;align-items:center;gap:8px;font-family:inherit;font-size:13px;color:var(--mute);background:none;border:1px solid transparent;border-radius:14px;padding:10px 14px;cursor:pointer;white-space:nowrap}
[dir=rtl] .tab{font-size:14px}
.tab:hover{color:var(--fg);border-color:var(--line)}
.tab.on{background:var(--fg);color:var(--bg)}
.ic{width:1em;height:1em;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:none}
.tab .ic{font-size:17px}
.head{display:flex;align-items:center;gap:16px;padding:22px 22px 0}
.badge{width:60px;height:60px;border-radius:18px;background:var(--acid);color:var(--on-acid);display:grid;place-items:center;font-size:30px;flex:none;animation:pop .5s cubic-bezier(.3,1.6,.5,1)}
.badge .ic{stroke-width:1.9}
@keyframes pop{0%{transform:scale(.6) rotate(-20deg);opacity:0}}
.head h2{font-size:22px;font-weight:900;letter-spacing:-.03em}
.head p{font-size:12.5px;color:var(--mute);margin-top:4px;font-family:var(--mono)}
[dir=rtl] .head h2{letter-spacing:0;font-size:24px}
[dir=rtl] .head p{font-family:var(--fa);font-size:13.5px}
.panel{display:grid;grid-template-columns:1fr auto 1fr;gap:14px;align-items:stretch;padding:22px}
.side{background:var(--field);border:1px solid var(--line);border-radius:20px;padding:16px;display:flex;flex-direction:column;gap:12px;min-width:0}
.side.to{position:relative;overflow:hidden}
.side label,.lbl{font-family:var(--mono);font-size:11px;text-transform:uppercase;letter-spacing:.18em;color:var(--mute)}
[dir=rtl] .side label,[dir=rtl] .lbl{font-family:var(--fa);letter-spacing:0;font-size:13px}
.wm{position:absolute;right:-18px;bottom:-24px;font-size:150px;color:var(--fg);opacity:.045;pointer-events:none}
[dir=rtl] .wm{right:auto;left:-18px}
.wm .ic{stroke-width:1.2}
select{appearance:none;-webkit-appearance:none;width:100%;font-family:inherit;font-size:15px;color:var(--fg);background:var(--card) url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8'%3E%3Cpath d='M1 1l5 5 5-5' fill='none' stroke='%238a877f' stroke-width='2'/%3E%3C/svg%3E") no-repeat right 14px center;border:1px solid var(--line);border-radius:12px;padding:12px 38px 12px 14px;cursor:pointer;outline:0}
[dir=rtl] select{background-position:left 14px center;padding:12px 14px 12px 38px}
select:focus,.val:focus,.inp:focus{border-color:var(--acid)}
.val{width:100%;font-family:var(--mono);font-size:clamp(24px,3.4vw,40px);color:var(--fg);background:none;border:0;border-bottom:1px solid transparent;outline:0;padding:6px 2px;min-width:0}
textarea.val{font-family:inherit;font-size:18px;line-height:1.6;resize:none;min-height:150px}
.val::placeholder{color:#45443f}
.out{font-family:var(--mono);font-size:clamp(24px,3.4vw,40px);font-weight:600;padding:6px 2px;word-break:break-word;min-height:56px;color:var(--acid);position:relative}
.out.txt{font-family:inherit;font-size:18px;font-weight:400;line-height:1.6;min-height:150px;color:var(--fg);white-space:pre-wrap}
.fa{font-family:var(--fa)!important}
.out .ph{color:#45443f;font-weight:400;font-size:.6em}
.out.txt .ph{font-size:1em}
.row{display:flex;gap:8px;align-items:center}
input[type=color]{width:46px;height:46px;border:1px solid var(--line);border-radius:12px;background:none;padding:4px;cursor:pointer;flex:none}
.swap{align-self:center;width:54px;height:54px;border-radius:18px;border:0;background:var(--acid);color:var(--on-acid);font-size:22px;cursor:pointer;transition:transform .5s cubic-bezier(.7,0,.2,1)}
.swap:hover{transform:rotate(180deg)}
.swap:disabled{opacity:.25;cursor:default;transform:none}
.foot{display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;align-items:center;padding:0 22px 22px}
.meta{font-family:var(--mono);font-size:12px;color:var(--mute)}
[dir=rtl] .meta{font-family:var(--fa);font-size:13px}
.alts{display:flex;flex-wrap:wrap;gap:8px;padding:0 22px 22px}
.alt{font-family:var(--mono);font-size:12px;border:1px solid var(--line);border-radius:10px;padding:8px 11px;color:var(--mute)}
[dir=rtl] .alt{font-family:var(--fa);font-size:13px}
.alt b{color:var(--fg);font-weight:600}
.btn{font-family:inherit;font-size:13px;font-weight:600;border:0;border-radius:12px;padding:12px 18px;background:var(--fg);color:var(--bg);cursor:pointer;text-decoration:none;display:inline-flex;align-items:center;justify-content:center;gap:8px}
.btn.acid{background:var(--acid);color:var(--on-acid)}
.btn:disabled{opacity:.4;cursor:default}
.btn.ghost{background:none;color:var(--mute);border:1px solid var(--line);font-weight:400;padding:8px 12px;font-size:12px}
.btn.ghost:hover{color:var(--fg)}
.sw{display:inline-block;width:.8em;height:.8em;border-radius:6px;vertical-align:middle;margin-inline-end:10px;border:1px solid var(--line)}
.dots::after{content:'';animation:dt 1s steps(4) infinite}@keyframes dt{0%{content:''}25%{content:'.'}50%{content:'..'}75%{content:'...'}}

/* calendar */
.picked{font-size:17px;font-weight:600;padding:2px}
.calh{display:flex;gap:6px;align-items:center}
.calh select{flex:1;min-width:0;padding:9px 24px 9px 10px;font-size:13px;background-position:right 8px center}
[dir=rtl] .calh select{padding:9px 10px 9px 24px;background-position:left 8px center}
.nav{width:36px;height:38px;flex:none;border-radius:10px;border:1px solid var(--line);background:none;color:var(--fg);font-size:16px;cursor:pointer}
.nav:hover{background:var(--fg);color:var(--bg)}
.grid{display:grid;grid-template-columns:repeat(7,1fr);gap:4px}
.grid .wd{font-family:var(--mono);font-size:10.5px;color:var(--mute);text-align:center;padding:4px 0;text-transform:uppercase}
.grid.fa .wd,.grid.fa .d{font-family:var(--fa)}
.d{aspect-ratio:1;border:0;border-radius:10px;background:none;color:var(--fg);font-family:var(--mono);font-size:13px;cursor:pointer;display:grid;place-items:center}
.d:hover{background:var(--line)}
.d.today{box-shadow:inset 0 0 0 1px var(--mute)}
.d.sel{background:var(--acid);color:var(--on-acid);font-weight:600}
.d.fri{color:var(--red)}
.calf{display:flex;justify-content:space-between;align-items:center}

/* forms, account, docs */
.inp{width:100%;font-family:inherit;font-size:15px;color:var(--fg);background:var(--field);border:1px solid var(--line);border-radius:12px;padding:13px 14px;outline:0}
.stack{display:flex;flex-direction:column;gap:12px}
.err{color:var(--red);font-size:13px;min-height:1em}
.ok{color:var(--acid);font-size:13px}
.sec-t{font-size:clamp(26px,3.6vw,44px);font-weight:900;letter-spacing:-.04em;line-height:1.05;margin-bottom:10px}
[dir=rtl] .sec-t{letter-spacing:0;line-height:1.35}
.muted{color:var(--mute);font-size:14px;line-height:1.7}
code,pre,.code{font-family:var(--mono);direction:ltr;text-align:left}
code{font-size:.9em;background:var(--field);border:1px solid var(--line);border-radius:6px;padding:1px 6px}
pre{background:#0d0d0f;border:1px solid var(--line);border-radius:16px;padding:16px 18px;overflow-x:auto;font-size:13px;line-height:1.65;color:#d6d3cb}
pre .k{color:var(--acid)}pre .s{color:#9ad1ff}pre .c{color:#6b6962}
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.plan{border:1px solid var(--line);border-radius:22px;padding:22px;display:flex;flex-direction:column;gap:12px;background:var(--card)}
.plan.hot{border-color:var(--acid);box-shadow:0 20px 70px -40px var(--acid)}
.plan h3{font-size:18px;font-weight:900}
.price{font-size:34px;font-weight:900;letter-spacing:-.03em}
.price small{font-size:13px;color:var(--mute);font-weight:400;letter-spacing:0}
.plan ul{list-style:none;display:flex;flex-direction:column;gap:8px;font-size:13px;color:#cfccc4;flex:1}
.plan li::before{content:'✓ ';color:var(--acid)}
.tbl{width:100%;border-collapse:collapse;font-size:13px}
.tbl td,.tbl th{border-bottom:1px solid var(--line);padding:11px 8px;text-align:start;vertical-align:top}
.tbl th{color:var(--mute);font-weight:400;font-size:12px}
.meter{height:10px;background:var(--field);border-radius:99px;overflow:hidden;border:1px solid var(--line)}
.meter i{display:block;height:100%;background:var(--acid);border-radius:99px;transition:width .6s}
.bars{display:flex;align-items:flex-end;gap:4px;height:70px}
.bars i{flex:1;background:var(--line);border-radius:4px 4px 0 0;min-height:2px}
.bars i.now{background:var(--acid)}
.keybox{display:flex;gap:8px;align-items:center;background:#0d0d0f;border:1px solid var(--line);border-radius:14px;padding:10px 10px 10px 14px;direction:ltr}
.keybox code{flex:1;background:none;border:0;font-size:14px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.modal{position:fixed;inset:0;background:rgba(0,0,0,.7);display:none;align-items:center;justify-content:center;padding:16px;z-index:60}
.modal.on{display:flex}
.modal .card{max-width:460px;width:100%;padding:24px;max-height:92vh;overflow:auto}
.seg{display:flex;background:var(--field);border:1px solid var(--line);border-radius:14px;padding:4px;gap:4px}
.seg button{flex:1;font-family:inherit;background:none;border:0;color:var(--mute);padding:10px;border-radius:10px;cursor:pointer;font-size:14px}
.seg button.on{background:var(--fg);color:var(--bg)}
.tag{display:inline-block;font-family:var(--mono);font-size:11px;padding:3px 8px;border-radius:6px;background:var(--field);border:1px solid var(--line);color:var(--mute)}
.tag.get{color:var(--acid)}.tag.post{color:#9ad1ff}

footer{display:flex;justify-content:space-between;color:var(--mute);font-family:var(--mono);font-size:12px;padding:0 0 40px;gap:10px;flex-wrap:wrap}
[dir=rtl] footer{font-family:var(--fa)}
@media(max-width:860px){.plans{grid-template-columns:1fr}}
@media(max-width:760px){
  .links{order:3;width:100%;justify-content:space-between;border:1px solid var(--line);border-radius:14px;padding:4px}
  .links a{flex:1;text-align:center}
  .head{padding:16px 14px 0}.head h2{font-size:18px}.badge{width:48px;height:48px;font-size:24px;border-radius:14px}
  .panel{grid-template-columns:1fr;padding:14px}
  .swap{transform:rotate(90deg);justify-self:center}.swap:hover{transform:rotate(270deg)}
  .foot,.alts{padding-left:14px;padding-right:14px}
  .wrap{padding:0 16px}
}
.logo{direction:ltr}
[dir=rtl] .out:not(.txt),[dir=rtl] .alt b{font-family:var(--fa);font-weight:900}
[dir=rtl] .val{font-family:var(--fa)}
.rnd{display:flex;align-items:center;gap:4px;flex-wrap:wrap;margin-top:auto;position:relative}
.rnd span{font-family:var(--mono);font-size:11px;color:var(--mute);margin-inline-end:6px;text-transform:uppercase;letter-spacing:.12em}
[dir=rtl] .rnd span{font-family:var(--fa);letter-spacing:0;font-size:12.5px}
.rnd button{font-family:var(--mono);font-size:12px;min-width:32px;height:30px;padding:0 9px;border-radius:9px;border:1px solid var(--line);background:var(--card);color:var(--mute);cursor:pointer}
[dir=rtl] .rnd button{font-family:var(--fa)}
.rnd button:hover{color:var(--fg)}.rnd button.on{background:var(--acid);border-color:var(--acid);color:var(--on-acid)}