/* Mehrava — mehrava.co | fintech-infrastructure design system */
@font-face{font-family:"Inter Tight";font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fonts/inter-tight-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+0304,U+0308,U+0329,U+2000-206F,U+20AC,U+2122,U+2191,U+2193,U+2212,U+2215,U+FEFF,U+FFFD}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-display:swap;font-weight:100 800;src:url(/assets/fonts/jetbrains-mono-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+2000-206F,U+2212}
@font-face{font-family:"Vazirmatn";font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fonts/vazirmatn-arabic-wght-normal.woff2) format("woff2");unicode-range:U+0600-06FF,U+0750-077F,U+200C-200E,U+2010-2011,U+204F,U+2E41,U+FB50-FDFF,U+FE70-FE74,U+FE76-FEFC}
@font-face{font-family:"Vazirmatn";font-style:normal;font-display:swap;font-weight:100 900;src:url(/assets/fonts/vazirmatn-latin-wght-normal.woff2) format("woff2");unicode-range:U+0000-00FF,U+0131,U+0152-0153,U+02BB-02BC,U+02C6,U+02DA,U+02DC,U+2000-206F,U+20AC,U+2122,U+2212,U+FEFF,U+FFFD}

:root{
  --font:"Inter Tight",ui-sans-serif,system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --bg:#F5F7FA;--bg-alt:#EDF1F6;--surface:#FFFFFF;--surface-2:#F8FAFC;
  --ink:#0B1220;--text:#1C2638;--muted:#55627A;--dim:#7A879C;
  --line:#DFE5EE;--line-strong:#C9D2DF;
  --teal:#0B8F7A;--teal-soft:rgba(11,143,122,.09);--blue:#1F6FD1;--gold:#B7790F;--gold-soft:rgba(183,121,15,.09);
  --violet:#5B48C9;--violet-soft:rgba(91,72,201,.08);--red:#C93838;
  --grad:linear-gradient(120deg,#0B8F7A,#1F6FD1);
  --btn-ink:#FFFFFF;
  --shadow-sm:0 1px 2px rgba(15,25,45,.06),0 1px 1px rgba(15,25,45,.04);
  --shadow:0 18px 40px -24px rgba(15,30,60,.28),0 2px 6px -2px rgba(15,30,60,.06);
  --grid:rgba(15,40,80,.055);
  --r:14px;--r-lg:20px;--wrap:1180px;--header:68px;
  color-scheme:light;
}
[data-theme=dark]{
  --bg:#060A12;--bg-alt:#0A1120;--surface:#0D1526;--surface-2:#111B2F;
  --ink:#F2F6FD;--text:#D9E2F0;--muted:#93A1B8;--dim:#66748B;
  --line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);
  --teal:#2FE6C9;--teal-soft:rgba(47,230,201,.08);--blue:#3EA8F5;--gold:#F6B84B;--gold-soft:rgba(246,184,75,.08);
  --violet:#A78BFA;--violet-soft:rgba(167,139,250,.08);--red:#FF7B7B;
  --grad:linear-gradient(120deg,#2FE6C9,#3EA8F5);
  --btn-ink:#04121A;
  --shadow-sm:0 1px 0 rgba(255,255,255,.03) inset;
  --shadow:0 24px 60px -24px rgba(0,0,0,.75);
  --grid:rgba(255,255,255,.045);
  color-scheme:dark;
}
:lang(fa){--font:"Vazirmatn",Tahoma,system-ui,sans-serif;--mono:"Vazirmatn",Tahoma,sans-serif}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:calc(var(--header) + 12px)}
body{margin:0;font-family:var(--font);font-size:16.5px;line-height:1.65;color:var(--text);background:var(--bg);-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;transition:background-color .3s,color .3s}
:lang(fa) body,body:lang(fa){line-height:1.9;font-size:16px}
img,svg{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
h1,h2,h3{color:var(--ink);margin:0;font-weight:750;letter-spacing:-.02em;line-height:1.12}
:lang(fa) h1,:lang(fa) h2,:lang(fa) h3{letter-spacing:0;line-height:1.35;font-weight:800}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:rgba(31,111,209,.2)}
:focus-visible{outline:2px solid var(--blue);outline-offset:3px;border-radius:6px}
.sr-only{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}
.skip{position:absolute;inset-inline-start:12px;top:-60px;z-index:100;background:var(--ink);color:var(--bg);padding:10px 16px;border-radius:10px;font-weight:600}
.skip:focus{top:12px}
.wrap{width:100%;max-width:var(--wrap);margin-inline:auto;padding-inline:clamp(18px,4vw,32px)}
.ico{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;flex:none}
[dir=rtl] .flip-rtl{transform:scaleX(-1)}
bdi{unicode-bidi:isolate}

/* Brand mark */
.mark{width:30px;height:29px;fill:var(--ink)}
.mark .mark-gem{fill:var(--teal)}
.brand{display:inline-flex;align-items:center;gap:11px;color:var(--ink)}
.wordmark{font-weight:800;letter-spacing:.28em;font-size:15px}
:lang(fa) .wordmark{letter-spacing:0;font-size:19px;font-weight:800}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;padding:13px 22px;border-radius:12px;font-weight:650;font-size:15px;line-height:1.2;border:1px solid transparent;cursor:pointer;transition:transform .2s,box-shadow .2s,background-color .2s,border-color .2s,color .2s;white-space:nowrap}
.btn:active{transform:translateY(1px)}
.btn-primary{background:var(--ink);color:var(--bg)}
[data-theme=dark] .btn-primary{background:var(--grad);color:var(--btn-ink);box-shadow:0 12px 30px -14px rgba(47,230,201,.6)}
.btn-primary:hover{transform:translateY(-1px);box-shadow:0 10px 24px -12px rgba(11,18,32,.55)}
[data-theme=dark] .btn-primary:hover{filter:brightness(1.06);box-shadow:0 14px 34px -12px rgba(47,230,201,.7)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--ink)}
.btn-ghost:hover{border-color:var(--teal);color:var(--teal)}
.btn-outline{background:var(--surface);border-color:var(--line-strong);color:var(--ink)}
.btn-outline:hover{border-color:currentColor}
.btn-sm{padding:9px 15px;font-size:14px;border-radius:10px}
.btn-block{width:100%}

/* Header */
.site-header{position:sticky;top:0;z-index:50;height:var(--header);background:color-mix(in srgb,var(--bg) 78%,transparent);backdrop-filter:saturate(1.4) blur(14px);-webkit-backdrop-filter:saturate(1.4) blur(14px);border-bottom:1px solid transparent;transition:border-color .3s,background-color .3s}
.site-header.scrolled{border-bottom-color:var(--line)}
.header-row{height:100%;display:flex;align-items:center;gap:20px}
.primary-nav{margin-inline-start:auto}
.primary-nav ul{display:flex;gap:2px}
.primary-nav a:not(.btn){display:block;padding:8px 12px;border-radius:8px;font-size:14.5px;font-weight:550;color:var(--muted);transition:color .2s,background-color .2s}
.primary-nav a:not(.btn):hover,.primary-nav a.active{color:var(--ink);background:var(--teal-soft)}
.nav-cta-mobile{display:none}
.header-tools{display:flex;align-items:center;gap:8px}
.tool{display:inline-flex;align-items:center;justify-content:center;gap:7px;height:38px;min-width:38px;padding:0 10px;border-radius:10px;border:1px solid var(--line);background:var(--surface);color:var(--ink);cursor:pointer;font-size:14px;font-weight:600;transition:border-color .2s,color .2s}
.tool:hover{border-color:var(--teal);color:var(--teal)}
.lang-switch span:lang(fa){font-family:"Vazirmatn",sans-serif}
.lang-switch span:lang(en){font-family:"Inter Tight",sans-serif}
.theme-toggle .i-moon{display:none}
[data-theme=dark] .theme-toggle .i-sun{display:none}
[data-theme=dark] .theme-toggle .i-moon{display:block}
.menu-toggle{display:none}
.menu-toggle .i-close{display:none}
.menu-open .menu-toggle .i-close{display:block}
.menu-open .menu-toggle .i-menu{display:none}

/* Hero */
.hero{position:relative;padding:clamp(48px,8vw,96px) 0 clamp(48px,6vw,72px);overflow:hidden}
.hero-grid-bg{position:absolute;inset:0;pointer-events:none;background-image:linear-gradient(var(--grid) 1px,transparent 1px),linear-gradient(90deg,var(--grid) 1px,transparent 1px);background-size:56px 56px;-webkit-mask-image:radial-gradient(ellipse 80% 70% at 60% 30%,#000 10%,transparent 75%);mask-image:radial-gradient(ellipse 80% 70% at 60% 30%,#000 10%,transparent 75%)}
[data-theme=dark] .hero::before{content:"";position:absolute;inset:-20% -10% auto auto;width:70%;height:90%;background:radial-gradient(closest-side,rgba(62,168,245,.14),transparent);pointer-events:none}
[data-theme=dark] .hero::after{content:"";position:absolute;inset:auto auto -30% -10%;width:60%;height:70%;background:radial-gradient(closest-side,rgba(47,230,201,.09),transparent);pointer-events:none}
.hero-row{position:relative;z-index:1;display:grid;grid-template-columns:1.1fr .9fr;gap:clamp(32px,5vw,64px);align-items:center}
.eyebrow{display:inline-flex;align-items:center;gap:10px;font-size:13px;font-weight:650;letter-spacing:.04em;color:var(--muted);padding:6px 14px 6px 12px;border:1px solid var(--line);border-radius:100px;background:var(--surface);margin-bottom:26px}
.dot{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px var(--teal-soft);animation:blink 2.4s ease-in-out infinite}
@keyframes blink{50%{box-shadow:0 0 0 7px transparent}}
.hero h1{font-size:clamp(40px,6.2vw,74px);font-weight:800;letter-spacing:-.035em;line-height:1.02}
:lang(fa) .hero h1{font-size:clamp(36px,5.6vw,66px);line-height:1.3;letter-spacing:0;font-weight:900}
.accent{color:var(--teal)}
[data-theme=dark] .accent{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.lead{margin-top:24px;font-size:clamp(16px,1.5vw,18.5px);color:var(--muted);max-width:60ch}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:28px}
.chip{font-size:13.5px;font-weight:600;padding:7px 14px;border-radius:100px;border:1px solid var(--line-strong);background:var(--surface);color:var(--ink)}
.chip-gold{border-color:color-mix(in srgb,var(--gold) 45%,transparent);color:var(--gold);background:var(--gold-soft)}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}

/* Topology panel */
.topology{margin:0;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow);overflow:hidden}
[data-theme=dark] .topology{background:linear-gradient(160deg,#0D1526,#0A1120)}
.topo-head{display:flex;justify-content:space-between;align-items:center;padding:14px 18px;border-bottom:1px solid var(--line);font-family:var(--mono);font-size:12.5px;color:var(--muted)}
.topo-title{font-weight:600;color:var(--ink);letter-spacing:.02em}
.topo-live{padding:2px 9px;border-radius:6px;background:var(--surface-2);border:1px solid var(--line);font-size:11.5px}
.topo-body{display:grid;grid-template-columns:auto 1fr auto;align-items:center;padding:26px 18px 18px;gap:0;min-height:260px}
.topo-origin{display:flex;flex-direction:column;align-items:center;text-align:center;gap:4px;max-width:118px}
.node-mark{display:grid;place-items:center;width:64px;height:64px;border-radius:18px;background:var(--ink);box-shadow:0 0 0 8px var(--teal-soft);margin-bottom:8px}
[data-theme=dark] .node-mark{background:var(--grad);box-shadow:0 0 34px rgba(47,230,201,.35),0 0 0 8px rgba(47,230,201,.07)}
.node-mark .mark{width:34px;height:33px;fill:var(--bg)}
[data-theme=dark] .node-mark .mark{fill:#04121A}
.node-mark .mark .mark-gem{fill:var(--teal)}
[data-theme=dark] .node-mark .mark .mark-gem{fill:#fff}
.topo-origin strong{color:var(--ink);font-size:15px}
.topo-origin small{color:var(--muted);font-size:12px;line-height:1.4}
.topo-paths{position:relative;height:220px;min-width:120px}
.topo-paths svg{width:100%;height:100%;overflow:visible}
.route{fill:none;stroke-width:1.6;vector-effect:non-scaling-stroke}
.r-base{stroke:var(--line-strong)}
.r-live{stroke:var(--teal);stroke-dasharray:6 10;animation:flow 1.6s linear infinite}
.r-standby{stroke:var(--gold);stroke-dasharray:2 7;opacity:.85}
@keyframes flow{to{stroke-dashoffset:-32}}
@keyframes flowv{to{background-position:0 10px}}
.path-tag{position:absolute;inset-inline-start:50%;transform:translateX(-50%);display:inline-flex;align-items:center;gap:6px;font-family:var(--mono);font-size:11px;white-space:nowrap;padding:3px 8px;border-radius:6px;background:var(--surface);border:1px solid var(--line);color:var(--muted)}
[dir=rtl] .path-tag{transform:translateX(50%)}
.t1{top:-14px}.t2{bottom:-6px}
.led{display:inline-block;width:7px;height:7px;border-radius:50%;flex:none}
.led-on{background:var(--teal);box-shadow:0 0 8px var(--teal)}
.led-standby{background:var(--gold);box-shadow:0 0 8px var(--gold)}
.topo-dests{display:flex;flex-direction:column;justify-content:space-between;height:200px;gap:8px}
.topo-dests li{display:flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--ink);padding:8px 12px;border:1px solid var(--line);border-radius:10px;background:var(--surface-2);white-space:nowrap}
.topology figcaption{padding:12px 18px 16px;font-size:13px;color:var(--muted);border-top:1px dashed var(--line)}

/* Stats */
.stats{position:relative;z-index:1;display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:clamp(40px,6vw,64px)}
.stat{position:relative;padding:22px 20px 20px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow-sm);overflow:hidden}
.stat::before{content:"";position:absolute;inset:0 0 auto;height:3px;background:var(--c,var(--teal))}
.tone-teal{--c:var(--teal)}.tone-blue{--c:var(--blue)}.tone-gold{--c:var(--gold)}.tone-violet{--c:var(--violet)}
.stat-num{display:block;font-family:var(--mono);font-size:clamp(28px,3.2vw,38px);font-weight:700;color:var(--ink);letter-spacing:-.02em;line-height:1.1}
.tone-gold .stat-num{color:var(--gold)}
:lang(fa) .stat-num{font-weight:800;letter-spacing:0}
.stat-label{display:block;margin-top:8px;font-size:14px;color:var(--muted);line-height:1.5}

/* Sections */
.section{padding:clamp(64px,9vw,112px) 0}
.section-alt{background:var(--bg-alt);border-block:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:clamp(32px,5vw,52px)}
.kicker{display:inline-flex;align-items:center;gap:10px;font-family:var(--mono);font-size:12.5px;font-weight:600;letter-spacing:.12em;text-transform:uppercase;color:var(--teal);margin-bottom:14px}
:lang(fa) .kicker{letter-spacing:0;font-size:14px;font-weight:700}
.kicker::before{content:"";width:24px;height:2px;border-radius:2px;background:var(--grad)}
.section h2{font-size:clamp(28px,3.8vw,44px)}
.section-lead{margin-top:14px;color:var(--muted);font-size:17px;max-width:62ch}

/* Pillars */
.pillars{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);overflow:hidden}
.pillar{position:relative;padding:28px 24px 30px;border-inline-end:1px solid var(--line);transition:background-color .25s}
.pillar:last-child{border-inline-end:0}
.pillar:hover{background:var(--surface-2)}
.pillar-idx{position:absolute;top:22px;inset-inline-end:22px;font-family:var(--mono);font-size:12px;color:var(--dim)}
.pillar-ico{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:var(--teal-soft);color:var(--teal);margin-bottom:20px}
.pillar-ico .ico{width:22px;height:22px}
.pillar h3{font-size:18px;margin-bottom:10px}
.pillar p{font-size:15px;color:var(--muted)}

/* Problems */
.problems{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.problem{padding:24px 22px;border:1px solid var(--line);border-radius:var(--r);background:var(--surface);box-shadow:var(--shadow-sm)}
.problem-ico{display:inline-grid;place-items:center;width:40px;height:40px;border-radius:10px;border:1px solid var(--line);color:var(--red);margin-bottom:18px}
.problem h3{display:flex;align-items:center;gap:9px;font-size:17px;margin-bottom:10px}
.diamond{width:7px;height:7px;background:var(--red);transform:rotate(45deg);flex:none}
.problem p{font-size:15px;color:var(--muted)}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:s}
.step{position:relative;padding-top:22px;border-top:2px solid var(--line-strong)}
.step::before{content:"";position:absolute;top:-2px;inset-inline-start:0;width:48px;height:2px;background:var(--teal)}
.step-num{display:block;font-family:var(--mono);font-size:13px;font-weight:700;color:var(--teal);margin-bottom:10px}
.step h3{font-size:19px;margin-bottom:8px}
.step p{font-size:15px;color:var(--muted)}
.callout{margin-top:clamp(36px,5vw,52px);padding:18px 22px;border-inline-start:3px solid var(--teal);background:var(--teal-soft);border-radius:0 12px 12px 0;color:var(--text);font-size:15.5px;max-width:900px}
[dir=rtl] .callout{border-radius:12px 0 0 12px}

/* Plans */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;align-items:stretch}
.plan{position:relative;display:flex;flex-direction:column;padding:28px 26px 26px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow-sm);transition:transform .25s,box-shadow .25s}
.plan:hover{transform:translateY(-3px);box-shadow:var(--shadow)}
.plan.tone-gold{--c:var(--gold);--cs:var(--gold-soft)}.plan.tone-teal{--c:var(--teal);--cs:var(--teal-soft)}.plan.tone-violet{--c:var(--violet);--cs:var(--violet-soft)}
.plan-featured{border-color:color-mix(in srgb,var(--teal) 55%,transparent);background:linear-gradient(180deg,var(--teal-soft),transparent 45%),var(--surface);box-shadow:0 0 0 1px color-mix(in srgb,var(--teal) 30%,transparent),var(--shadow)}
.plan-tag{align-self:flex-start;font-family:var(--mono);font-size:11.5px;font-weight:700;letter-spacing:.1em;text-transform:uppercase;padding:4px 11px;border-radius:100px;border:1px solid color-mix(in srgb,var(--c) 50%,transparent);color:var(--c);background:var(--cs)}
:lang(fa) .plan-tag{letter-spacing:0;font-size:13px}
.plan-featured .plan-tag{background:var(--teal);color:var(--bg);border-color:transparent}
[data-theme=dark] .plan-featured .plan-tag{color:#04121A}
.plan-name{margin-top:20px;font-size:28px;display:flex;align-items:baseline;gap:10px}
.plan-en{font-family:"Inter Tight",sans-serif;font-size:14px;font-weight:600;color:var(--dim)}
.plan-sub{font-family:var(--mono);font-size:13px;color:var(--muted);margin-top:4px}
.plan-price{margin-top:22px;padding:16px 16px;border-radius:12px;background:var(--surface-2);border:1px dashed var(--line-strong)}
.price-label{display:block;font-size:20px;font-weight:750;color:var(--c);line-height:1.3}
.price-billing{display:block;font-size:13.5px;color:var(--muted);margin-top:2px}
.plan-metrics{display:grid;grid-template-columns:1fr 1fr;margin:18px 0 0;padding:16px 0;border-block:1px solid var(--line)}
.plan-metrics div+div{padding-inline-start:16px;border-inline-start:1px solid var(--line)}
.plan-metrics dt{font-size:12.5px;color:var(--muted)}
.plan-metrics dd{margin:2px 0 0;font-family:var(--mono);font-size:22px;font-weight:700;color:var(--ink)}
.plan-feats{display:grid;gap:12px;margin:20px 0 26px;flex:1}
.plan-feats li{display:flex;gap:10px;font-size:14.5px;color:var(--muted);line-height:1.55}
.plan-feats strong{color:var(--ink);font-weight:650}
.ico-check{color:var(--c);margin-top:3px;stroke-width:2.2}

/* Compare */
.table-scroll{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);-webkit-overflow-scrolling:touch}
.compare{width:100%;border-collapse:collapse;min-width:640px;font-size:15px}
.compare th,.compare td{padding:15px 20px;text-align:start;border-bottom:1px solid var(--line);vertical-align:middle}
.compare thead th{font-family:var(--mono);font-size:12.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--muted);font-weight:700;background:var(--surface-2)}
:lang(fa) .compare thead th{letter-spacing:0;font-size:14px}
.compare thead .th-gold{color:var(--gold)}.compare thead .th-teal{color:var(--teal)}.compare thead .th-violet{color:var(--violet)}
.compare tbody th{font-weight:550;color:var(--muted);width:30%}
.compare td{color:var(--ink);font-weight:550}
.compare .col-hl{background:var(--teal-soft)}
.compare .v-good{color:var(--teal)}.compare .v-bad{color:var(--red)}
.compare tr:last-child th,.compare tr:last-child td{border-bottom:0}
.row-cta a{display:inline-flex;align-items:center;gap:6px;color:var(--blue);font-weight:650}
.row-cta a:hover{text-decoration:underline;text-underline-offset:3px}
.row-cta .ico{width:15px;height:15px}
.compare tbody th[scope=row]{position:sticky;inset-inline-start:0;background:var(--surface);z-index:1}

/* FAQ */
.faq-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:clamp(24px,5vw,64px);align-items:start}
.faq-wrap .section-head{position:sticky;top:calc(var(--header) + 24px)}
.faq{display:grid;gap:10px}
.faq details{border:1px solid var(--line);border-radius:var(--r);background:var(--surface);transition:border-color .2s}
.faq details[open]{border-color:var(--line-strong)}
.faq summary{list-style:none;cursor:pointer;display:flex;justify-content:space-between;align-items:center;gap:16px;padding:18px 20px;font-weight:650;color:var(--ink);font-size:16px}
.faq summary::-webkit-details-marker{display:none}
.plus{position:relative;width:14px;height:14px;flex:none}
.plus::before,.plus::after{content:"";position:absolute;inset:6px 0 auto;height:2px;border-radius:2px;background:var(--teal);transition:transform .25s}
.plus::after{transform:rotate(90deg)}
details[open] .plus::after{transform:rotate(0)}
.faq details p{padding:0 20px 20px;color:var(--muted);font-size:15.5px}

/* Contact */
.contact{position:relative;overflow:hidden}
.contact-row{display:grid;grid-template-columns:1fr 1fr;gap:clamp(32px,5vw,64px);align-items:start}
.contact h2{font-size:clamp(32px,4.4vw,52px)}
.contact-card{margin-top:30px;padding:24px;border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);display:grid;gap:6px;box-shadow:var(--shadow-sm)}
.cc-label{font-family:var(--mono);font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--dim)}
:lang(fa) .cc-label{letter-spacing:0;font-size:13px}
.cc-email{font-family:"JetBrains Mono",monospace;font-size:clamp(19px,2.2vw,24px);font-weight:700;color:var(--ink);justify-self:start;word-break:break-all}
.cc-email:hover{color:var(--teal)}
.cc-actions{display:flex;flex-wrap:wrap;gap:8px;margin:10px 0 18px}
.cc-web{font-family:"JetBrains Mono",monospace;color:var(--ink);justify-self:start}
.copy-email.done{border-color:var(--teal);color:var(--teal)}
.mail-form{padding:clamp(22px,3vw,32px);border:1px solid var(--line);border-radius:var(--r-lg);background:var(--surface);box-shadow:var(--shadow);display:grid;gap:16px}
.mail-form h3{font-size:19px}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.field{display:grid;gap:7px;margin:0;padding:0;border:0;min-width:0}
.field>span,.field legend{font-size:13.5px;font-weight:600;color:var(--muted);padding:0;margin-bottom:7px}
fieldset.field legend{margin-bottom:9px}
.field input,.field select,.field textarea{width:100%;padding:12px 14px;border:1px solid var(--line-strong);border-radius:10px;background:var(--surface-2);color:var(--ink);font-size:15px;transition:border-color .2s,box-shadow .2s}
.field textarea{resize:vertical;min-height:104px}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-soft)}
.field input[aria-invalid=true]{border-color:var(--red)}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--muted) 50%),linear-gradient(135deg,var(--muted) 50%,transparent 50%);background-position:calc(100% - 20px) 55%,calc(100% - 15px) 55%;background-size:5px 5px;background-repeat:no-repeat;padding-inline-end:38px}
[dir=rtl] .field select{background-position:20px 55%,15px 55%}
.seg{display:flex;flex-wrap:wrap;gap:8px}
.seg label{position:relative;cursor:pointer}
.seg input{position:absolute;opacity:0;inset:0;cursor:pointer}
.seg span{display:inline-block;padding:8px 13px;border:1px solid var(--line-strong);border-radius:100px;font-size:13.5px;font-weight:600;color:var(--muted);transition:all .2s}
.seg input:checked+span{border-color:var(--teal);color:var(--teal);background:var(--teal-soft)}
.seg input:focus-visible+span{outline:2px solid var(--blue);outline-offset:2px}
.form-note{font-size:13px;color:var(--dim);line-height:1.6}
.field-error{color:var(--red);font-size:13px}

/* Footer */
.site-footer{border-top:1px solid var(--line);background:var(--bg-alt);padding:56px 0 28px;font-size:15px}
.footer-row{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:32px}
.footer-brand p{margin-top:14px;color:var(--muted);max-width:36ch}
.footer-brand .tagline{max-width:none}
.tagline{font-family:var(--mono);font-size:12px!important;letter-spacing:.22em;text-transform:uppercase;color:var(--dim)!important}
:lang(fa) .tagline{letter-spacing:0;font-size:14px!important}
.f-head{font-family:var(--mono);font-size:12px;letter-spacing:.12em;text-transform:uppercase;color:var(--dim);margin-bottom:14px}
:lang(fa) .f-head{letter-spacing:0;font-size:14px}
.site-footer ul{display:grid;gap:8px}
.site-footer ul a,.site-footer ul span{color:var(--muted)}
.site-footer ul a:hover{color:var(--teal)}
.footer-base{display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:44px;padding-top:22px;border-top:1px solid var(--line);color:var(--dim);font-size:13.5px}
.to-top{display:inline-flex;align-items:center;gap:6px}
.to-top:hover{color:var(--teal)}
.to-top .ico{width:15px;height:15px}

/* Reveal (only when JS is active) */
.js .reveal{opacity:0;transform:translateY(18px);transition:opacity .7s cubic-bezier(.16,1,.3,1),transform .7s cubic-bezier(.16,1,.3,1)}
.js .reveal.in{opacity:1;transform:none}

/* Responsive */
@media (max-width:1080px){
  .primary-nav a:not(.btn){padding:8px 9px;font-size:14px}
  .hero-row{grid-template-columns:1fr}
  .topology{max-width:640px}
  .pillars{grid-template-columns:1fr 1fr}
  .pillar:nth-child(2){border-inline-end:0}
  .pillar:nth-child(-n+2){border-bottom:1px solid var(--line)}
  .problems,.steps{grid-template-columns:1fr 1fr}
  .steps{row-gap:32px}
}
@media (max-width:960px){
  .menu-toggle{display:inline-flex}
  .nav-cta{display:none}
  .primary-nav{position:fixed;inset:var(--header) 0 auto 0;margin:0;padding:12px clamp(18px,4vw,32px) 22px;background:var(--bg);border-bottom:1px solid var(--line);box-shadow:var(--shadow);transform:translateY(-8px);opacity:0;visibility:hidden;transition:opacity .2s,transform .2s,visibility .2s}
  .menu-open .primary-nav{opacity:1;transform:none;visibility:visible}
  .primary-nav ul{flex-direction:column;gap:2px}
  .primary-nav a:not(.btn){padding:12px;font-size:16px}
  .nav-cta-mobile{display:flex;margin-top:12px}
  .header-tools{margin-inline-start:auto}
  .plans{grid-template-columns:1fr;max-width:560px}
  .faq-wrap,.contact-row{grid-template-columns:1fr}
  .faq-wrap .section-head{position:static}
  .stats{grid-template-columns:1fr 1fr}
  .footer-row{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1/-1}
}
@media (max-width:600px){
  body{font-size:16px}
  .lang-switch span{display:none}
  .wordmark{font-size:13.5px;letter-spacing:.22em}
  .pillars,.problems,.steps{grid-template-columns:1fr}
  .pillar{border-inline-end:0;border-bottom:1px solid var(--line)}
  .pillar:last-child{border-bottom:0}
  .stats{gap:10px}
  .stat{padding:18px 14px 16px}
  .stat-label{font-size:13px}
  .field-row{grid-template-columns:1fr}
  .topo-body{grid-template-columns:1fr;justify-items:center;gap:14px;padding:22px 14px 14px}
  .topo-paths{width:100%;height:auto;min-width:0;display:flex;flex-direction:column;align-items:center;gap:8px}
  .topo-paths svg{display:none}
  .topo-paths::before,.topo-paths::after{content:"";width:2px;height:22px;background:repeating-linear-gradient(to bottom,var(--teal) 0 5px,transparent 5px 10px);animation:flowv 1.2s linear infinite}
  .path-tag,.path-tag.t1,.path-tag.t2,[dir=rtl] .path-tag{position:static;transform:none}
  .topo-origin{max-width:none}
  .topo-dests{height:auto;width:100%}
  .topo-dests li{justify-content:center}
  .cta-row .btn{flex:1 1 auto}
  .footer-row{grid-template-columns:1fr}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important}
  .js .reveal{opacity:1;transform:none}
}
@media print{
  .site-header,.mail-form,.topology,.hero-grid-bg{display:none}
  .js .reveal{opacity:1;transform:none}
}

/* 404 */
.nf-wrap{max-width:640px;text-align:center}
.nf-wrap h1{font-size:clamp(32px,5vw,48px)}
.nf-wrap .section-lead{margin-inline:auto}
.nf-wrap .cta-row{justify-content:center}
[lang=fa]{font-family:"Vazirmatn",Tahoma,sans-serif}
@media (prefers-color-scheme:dark){html:not([data-theme]){--bg:#060A12;--surface:#0D1526;--ink:#F2F6FD;--text:#D9E2F0;--muted:#93A1B8;--line:rgba(255,255,255,.08);--line-strong:rgba(255,255,255,.16);--teal:#2FE6C9;--grad:linear-gradient(120deg,#2FE6C9,#3EA8F5);color-scheme:dark}}

/* Contact form additions (honeypot, Turnstile, status) */
.hp-field{position:absolute!important;left:-10000px;top:auto;width:1px;height:1px;overflow:hidden}
.mail-form{position:relative}
.ts-box{min-height:65px}
.ts-box:empty{min-height:0}
.form-status{font-size:14px;line-height:1.6;padding:10px 14px;border-radius:10px;border:1px solid var(--line);background:var(--surface-2);color:var(--ink)}
.form-status.is-ok{border-color:var(--teal);box-shadow:0 0 0 3px var(--teal-soft)}
.form-status.is-error{border-color:var(--red);color:var(--red)}
.form-send[disabled]{opacity:.6;cursor:progress}
.form-mailto{justify-self:center}
.form-mailto[hidden]{display:none}