/* RoomHex site stylesheet: dark-first cinematic identity. */
*,*::before,*::after{box-sizing:border-box}
:root{
  --bg:#05060c;--bg-2:#080a14;--panel:#0a0e1a;--panel-2:#0d1222;
  --line:#20263c;--line-2:#2a3150;
  --text:#eef1fb;--muted:#9aa3c4;--muted-2:#727aa0;
  --indigo:#6d5cff;--cyan:#21d4fd;--pink:#ff4d8d;
  --grad:linear-gradient(120deg,#6d5cff 0%,#21d4fd 55%,#ff4d8d 100%);
  --radius:16px;--radius-sm:10px;--wrap:1140px;
  --shadow:0 30px 80px -40px rgba(109,92,255,.55);
  --focus:#8fd6ff;
}
html{scroll-behavior:smooth}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
html,body{overflow-x:hidden;max-width:100%}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,"Segoe UI",Roboto,"Helvetica Neue",Arial,"Noto Sans","Vazirmatn",sans-serif;
  font-size:17px;line-height:1.65;-webkit-font-smoothing:antialiased;
  background-image:
    radial-gradient(1100px 600px at 80% -10%,rgba(109,92,255,.20),transparent 60%),
    radial-gradient(900px 500px at 0% 10%,rgba(33,212,253,.14),transparent 55%),
    radial-gradient(700px 700px at 60% 120%,rgba(255,77,141,.12),transparent 60%);
  background-attachment:fixed;
}
h1,h2,h3{line-height:1.15;letter-spacing:-.02em;margin:0 0 .4em}
p{margin:0 0 1em}
a{color:var(--cyan);text-decoration:none}
a:hover{text-decoration:underline}
img,svg{max-width:100%;height:auto}
:focus-visible{outline:3px solid var(--focus);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.skip-link{position:absolute;left:-999px;top:0;background:var(--indigo);color:#fff;padding:.6rem 1rem;border-radius:0 0 8px 0;z-index:100}
.skip-link:focus{left:0}
.wrap{width:min(var(--wrap),92vw);margin-inline:auto}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5rem;font-weight:600;border-radius:999px;
  padding:.85rem 1.5rem;border:1px solid transparent;cursor:pointer;white-space:nowrap;line-height:1.1;
  transition:transform .15s ease,box-shadow .2s ease,background .2s ease;text-decoration:none}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--sm{padding:.55rem 1rem;font-size:.92rem}
.btn--primary{background:var(--grad);color:#0a0a12;box-shadow:var(--shadow)}
.btn--primary:hover{box-shadow:0 20px 60px -25px rgba(33,212,253,.7)}
.btn--ghost{background:rgba(255,255,255,.04);color:var(--text);border-color:var(--line-2)}
.btn--ghost:hover{background:rgba(255,255,255,.08)}
.eyebrow{text-transform:uppercase;letter-spacing:.18em;font-size:.75rem;font-weight:700;color:var(--cyan);margin:0 0 .8rem}

/* Header */
.site-header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);
  background:rgba(5,6,12,.72);border-bottom:1px solid var(--line)}
.site-header .wrap{width:min(1340px,95vw)}
.site-header__inner{display:flex;align-items:center;gap:1.25rem;padding:.85rem 0}
.brand{display:inline-flex;align-items:center;gap:.55rem;color:var(--text);font-weight:800;letter-spacing:-.01em;font-size:1.1rem;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand__mark{filter:drop-shadow(0 4px 12px rgba(109,92,255,.5))}
.brand__word{white-space:nowrap}
.nav{margin-inline-start:auto}
.nav__list{list-style:none;display:flex;gap:.1rem;margin:0;padding:0}
.nav__list a{color:var(--muted);padding:.45rem .55rem;border-radius:8px;font-size:.9rem;font-weight:500;white-space:nowrap}
.nav__list a:hover,.nav__list a[aria-current=page]{color:var(--text);background:rgba(255,255,255,.05);text-decoration:none}
.site-header__actions{display:flex;align-items:center;gap:.5rem;flex:0 0 auto}
.nav__toggle{display:none}
.lang{position:relative}
.lang__button{background:rgba(255,255,255,.04);color:var(--text);border:1px solid var(--line-2);border-radius:999px;padding:.5rem .9rem;cursor:pointer;font:inherit;font-size:.9rem}
.lang__menu{position:absolute;inset-inline-end:0;top:calc(100% + .4rem);background:var(--panel-2);border:1px solid var(--line-2);border-radius:10px;list-style:none;margin:0;padding:.3rem;min-width:120px;z-index:20}
.lang__menu li{padding:.5rem .7rem;border-radius:6px;cursor:pointer}
.lang__menu li:hover{background:rgba(255,255,255,.06)}

/* Hero */
.hero{position:relative;padding:clamp(3rem,8vw,6rem) 0 clamp(2.5rem,6vw,5rem);overflow:hidden}
.hero--compact{padding:clamp(2.5rem,6vw,4rem) 0 1rem}
.hero__glow{position:absolute;inset:-20% -10% auto;height:520px;background:
  radial-gradient(600px 320px at 70% 20%,rgba(109,92,255,.35),transparent 60%),
  radial-gradient(500px 300px at 20% 40%,rgba(33,212,253,.25),transparent 60%);pointer-events:none;filter:blur(6px)}
.hero__grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:clamp(1.5rem,4vw,3rem);align-items:center;position:relative}
.hero__copy,.hero__scene,.split__copy,.split__media{min-width:0}
.hero__title,.hero__subtitle,.section__lead,.section__title{overflow-wrap:break-word}
.hero__title{font-size:clamp(2.2rem,5.2vw,3.6rem);font-weight:800;
  background:linear-gradient(180deg,#fff,#c7cdf0);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__subtitle{font-size:clamp(1.05rem,2vw,1.25rem);color:var(--muted);max-width:44ch}
.hero__ctas{display:flex;flex-wrap:wrap;gap:.8rem;margin:1.6rem 0}
.hero__signals{list-style:none;display:flex;flex-wrap:wrap;gap:.5rem;padding:0;margin:1.2rem 0 0}
.hero__signals li{font-size:.85rem;color:var(--muted);background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:999px;padding:.35rem .8rem}
.hero__scene .scene{width:100%;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow);display:block}
.scene{background:var(--bg);display:block;max-width:100%}

/* Sections */
.section{padding:clamp(2.5rem,6vw,4.5rem) 0}
.section--band{padding:2rem 0}
.section__title{font-size:clamp(1.6rem,3.4vw,2.4rem);font-weight:800}
.section__lead{color:var(--muted);max-width:60ch;font-size:1.08rem}
.grid{display:grid;gap:1rem}
.grid--cards{grid-template-columns:repeat(auto-fit,minmax(260px,1fr));margin-top:1.8rem}
.grid--posts{grid-template-columns:repeat(auto-fit,minmax(300px,1fr));margin-top:1rem}
.card{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);
  border-radius:var(--radius);padding:1.4rem;transition:transform .18s ease,border-color .2s ease}
.card:hover{transform:translateY(-3px);border-color:var(--line-2)}
.card__icon{display:inline-grid;place-items:center;width:44px;height:44px;border-radius:12px;
  background:rgba(109,92,255,.14);color:var(--cyan);font-size:1.2rem;margin-bottom:.8rem}
.card__title{font-size:1.15rem;margin-bottom:.35rem}
.card__body{color:var(--muted);margin:0;font-size:.98rem}

/* Split */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:clamp(1.5rem,4vw,3rem);align-items:center}
.split--reverse{direction:ltr}
.split__media .scene{width:100%;border-radius:var(--radius);border:1px solid var(--line);box-shadow:var(--shadow)}
.checklist{list-style:none;padding:0;margin:1.2rem 0 0;display:grid;gap:.6rem}
.checklist li{position:relative;padding-inline-start:1.8rem;color:var(--muted)}
.checklist li::before{content:"";position:absolute;inset-inline-start:0;top:.5em;width:12px;height:12px;border-radius:50%;
  background:var(--grad);box-shadow:0 0 12px rgba(33,212,253,.6)}

/* Stat band */
.stat-band{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:1rem;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:1.6rem}
.stat{text-align:center}
.stat__value{display:block;font-size:1.9rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat__label{color:var(--muted);font-size:.9rem}

/* CTA band */
.section--cta .cta-band{background:linear-gradient(135deg,rgba(109,92,255,.16),rgba(33,212,253,.10));
  border:1px solid var(--line-2);border-radius:calc(var(--radius) + 6px);padding:clamp(2rem,5vw,3.2rem);text-align:center}
.cta-band__title{font-size:clamp(1.5rem,3.2vw,2.2rem)}
.cta-band__lead{color:var(--muted);max-width:52ch;margin-inline:auto}
.cta-band__actions{display:flex;gap:.8rem;justify-content:center;flex-wrap:wrap;margin-top:1.4rem}

/* FAQ */
.faq{max-width:60rem}
.faq__list{display:grid;gap:.7rem;margin-top:1.4rem}
.faq__item{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:var(--radius-sm);padding:.2rem 1.2rem}
.faq__item[open]{border-color:var(--line-2)}
.faq__q{cursor:pointer;font-weight:700;padding:.9rem 0;list-style:none;display:flex;justify-content:space-between;align-items:center;gap:1rem}
.faq__q::-webkit-details-marker{display:none}
.faq__q::after{content:"+";color:var(--cyan);font-size:1.2rem;flex-shrink:0}
.faq__item[open] .faq__q::after{content:"\2013"}
.faq__a{color:var(--muted);margin:0 0 1rem;max-width:70ch}

/* Steps / journey */
.steps{list-style:none;padding:0;margin:1.6rem 0 0;display:grid;gap:1rem}
.step{display:flex;gap:1rem;align-items:flex-start;background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:var(--radius-sm);padding:1.1rem 1.2rem}
.step__num{flex-shrink:0;width:2rem;height:2rem;border-radius:50%;display:grid;place-items:center;font-weight:800;color:#0a0a12;background:var(--grad)}
.step__title{font-size:1.05rem;margin:.1rem 0 .3rem}
.step__body p{color:var(--muted);margin:0}

/* Prose */
.prose{max-width:74ch}
.prose h2{margin-top:1.6rem}
.prose ul.checklist{margin-top:.6rem}
.taglist{list-style:none;display:flex;flex-wrap:wrap;gap:.4rem;padding:0;margin:1.4rem 0}
.tag,.taglist li{font-size:.78rem;color:var(--cyan);background:rgba(33,212,253,.12);border-radius:999px;padding:.25rem .7rem}

/* Blog */
.post-card{background:linear-gradient(180deg,var(--panel-2),var(--panel));border:1px solid var(--line);border-radius:var(--radius);padding:1.4rem;transition:transform .18s ease}
.post-card:hover{transform:translateY(-3px)}
.post-card__meta{display:flex;gap:.6rem;align-items:center;color:var(--muted-2);font-size:.82rem;margin:0 0 .6rem}
.post-card__title{font-size:1.2rem;margin:0 0 .4rem}
.post-card__summary{color:var(--muted);font-size:.96rem}
.post-card__more{font-weight:600}
.article__head{padding:clamp(2rem,5vw,3rem) 0 1rem;max-width:74ch}
.article__title{font-size:clamp(1.8rem,4vw,2.6rem)}
.article__summary{color:var(--muted);font-size:1.15rem}
.article__byline{color:var(--muted-2);font-size:.9rem}

/* Footer */
.site-footer{border-top:1px solid var(--line);margin-top:3rem;background:rgba(8,10,20,.6)}
.site-footer__inner{display:grid;grid-template-columns:1.2fr 2fr;gap:2rem;padding:3rem 0 2rem}
.footer__tagline{color:var(--muted);max-width:32ch}
.footer__note{color:var(--muted-2);font-size:.85rem}
.footer__cols{display:grid;grid-template-columns:repeat(4,1fr);gap:1.2rem}
.footer__title{font-size:.8rem;text-transform:uppercase;letter-spacing:.12em;color:var(--muted-2)}
.footer__col ul{list-style:none;padding:0;margin:.6rem 0 0;display:grid;gap:.4rem}
.footer__col a{color:var(--muted);font-size:.92rem}
.footer__col a:hover{color:var(--text)}
.site-footer__legal{display:flex;justify-content:space-between;gap:1rem;flex-wrap:wrap;
  border-top:1px solid var(--line);padding:1.2rem 0;color:var(--muted-2);font-size:.85rem}
.site-footer--slim{padding:2rem 0;text-align:center}
.site-footer__analytics{width:100%;color:var(--muted-2);font-size:.8rem;margin:.4rem 0 0}

/* Loading overlay */
.site-loader{position:fixed;inset:0;z-index:9999;display:flex;align-items:center;justify-content:center;
  background:radial-gradient(600px 400px at 50% 40%,rgba(109,92,255,.18),transparent 60%),var(--bg);
  transition:opacity .4s ease,visibility .4s ease}
.site-loader.is-done{opacity:0;visibility:hidden;pointer-events:none}
.site-loader__inner{display:flex;flex-direction:column;align-items:center;gap:1rem}
.site-loader__mark{animation:rh-pulse 1.4s ease-in-out infinite}
.site-loader__text{color:var(--muted);font-size:.95rem;letter-spacing:.02em}
@keyframes rh-pulse{0%,100%{opacity:.55;transform:scale(.96)}50%{opacity:1;transform:scale(1.04)}}
@media(prefers-reduced-motion:reduce){.site-loader__mark{animation:none}}

/* Cookie / analytics consent banner */
.cookie-note{position:fixed;inset-inline:1rem;bottom:1rem;z-index:200;margin-inline:auto;max-width:640px;
  display:flex;align-items:center;gap:1rem;flex-wrap:wrap;justify-content:space-between;
  background:var(--panel-2);border:1px solid var(--line-2);border-radius:var(--radius);
  padding:1rem 1.15rem;box-shadow:0 24px 60px -30px rgba(0,0,0,.8);
  opacity:0;transform:translateY(12px);transition:opacity .3s ease,transform .3s ease}
.cookie-note.is-shown{opacity:1;transform:none}
.cookie-note__text{margin:0;color:var(--muted);font-size:.88rem;flex:1 1 260px;min-width:220px}
.cookie-note__actions{display:flex;gap:.6rem;flex-shrink:0}
@media(max-width:520px){.cookie-note{flex-direction:column;align-items:stretch}.cookie-note__actions{justify-content:flex-end}}

/* Error pages */
.error-page{padding:clamp(3rem,8vw,6rem) 0}
.error-page__panel{max-width:640px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.6rem,4vw,2.6rem)}
.error-page__code{font-size:3rem;font-weight:800;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;margin:0}
.error-page__title{font-size:1.8rem}
.error-page__message{color:var(--muted)}
.error-page__status-card{background:var(--panel-2);border:1px solid var(--line-2);border-radius:var(--radius-sm);padding:1rem 1.2rem;margin:1.2rem 0}
.error-page__status-card h2{font-size:1.05rem;margin:0 0 .3rem}
.error-page__status-card p{margin:0;color:var(--muted)}
.error-page__next{font-size:1rem;text-transform:uppercase;letter-spacing:.1em;color:var(--muted-2)}
.error-page__links{list-style:none;padding:0;display:flex;flex-wrap:wrap;gap:.6rem}
.error-page__links a{background:rgba(255,255,255,.05);border:1px solid var(--line);border-radius:999px;padding:.45rem .9rem;color:var(--text)}

/* Forms */
.form-field{display:grid;gap:.35rem;margin-bottom:1rem}
.form-field label{font-weight:600;font-size:.95rem}
.form-field input,.form-field textarea,.form-field select{background:var(--panel);border:1px solid var(--line-2);border-radius:10px;padding:.7rem .9rem;color:var(--text);font:inherit}
.form-field input:focus,.form-field textarea:focus{border-color:var(--indigo)}
.form-note{color:var(--muted-2);font-size:.85rem}
.rh-form{max-width:560px;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(1.4rem,4vw,2rem);margin-top:1.5rem}
.rh-form .btn{margin-top:.5rem}
.rh-consent{display:flex;gap:.55rem;align-items:flex-start;color:var(--muted);font-size:.92rem;margin:.4rem 0 1rem}
.rh-consent input{margin-top:.25rem}
.rh-hp{position:absolute;left:-9999px;width:1px;height:1px;overflow:hidden}
.rh-form__status{margin:.9rem 0 0;font-size:.95rem;min-height:1.2em}
.rh-form__status--ok{color:#5ce6a5}
.rh-form__status--err{color:#ff8fae}

/* RTL */
[dir=rtl] body{font-family:"Vazirmatn",system-ui,"Segoe UI",Tahoma,sans-serif}
[dir=rtl] .hero__title,[dir=rtl] .section__lead,[dir=rtl] .hero__subtitle{text-align:right}
[dir=rtl] .checklist li{padding-inline-start:1.8rem}

/* Optional light surface for embeds */
[data-theme=light]{--bg:#f6f7fb;--bg-2:#eef1f9;--panel:#fff;--panel-2:#f2f4fb;--text:#111426;--muted:#4a5170;--line:#e3e7f2;--line-2:#d2d8ea}

/* Responsive */
@media(max-width:1180px){
  .nav__toggle{display:inline-grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid var(--line-2);border-radius:10px;width:42px;height:42px;cursor:pointer}
  .nav__toggle-bar,.nav__toggle-bar::before,.nav__toggle-bar::after{content:"";display:block;width:18px;height:2px;background:var(--text)}
  .nav__toggle-bar{position:relative}
  .nav__toggle-bar::before{position:absolute;top:-6px}
  .nav__toggle-bar::after{position:absolute;top:6px}
  .nav{margin-inline-start:auto;margin-inline-end:0}
  .nav__panel{position:absolute;inset-inline:0;top:100%;background:var(--panel-2);border-bottom:1px solid var(--line);padding:1rem;display:none;z-index:40}
  .nav__panel[data-open=true]{display:block}
  .nav__list{flex-direction:column;gap:.15rem}
  .nav__list a{padding:.6rem .7rem;font-size:1rem}
}
@media(max-width:900px){
  .hero__grid,.split{grid-template-columns:minmax(0,1fr)}
  .hero__scene{order:-1}
  .footer__cols{grid-template-columns:repeat(2,1fr)}
  .site-footer__inner{grid-template-columns:1fr}
  .nav__toggle{display:inline-grid;place-items:center;background:rgba(255,255,255,.05);border:1px solid var(--line-2);border-radius:10px;width:42px;height:42px;cursor:pointer}
  .nav__toggle-bar,.nav__toggle-bar::before,.nav__toggle-bar::after{content:"";display:block;width:18px;height:2px;background:var(--text);position:relative}
  .nav__toggle-bar::before{position:absolute;top:-6px}
  .nav__toggle-bar::after{position:absolute;top:6px}
  .nav__panel{position:absolute;inset-inline:0;top:100%;background:var(--panel-2);border-bottom:1px solid var(--line);
    padding:1rem;display:none}
  .nav__panel[data-open=true]{display:block}
  .nav__list{flex-direction:column}
  .site-header__actions .btn{display:none}
  .site-header__actions .lang{margin-inline-start:auto}
}
@media(max-width:560px){
  body{font-size:16px}
  .footer__cols{grid-template-columns:1fr}
  .error-page__links{flex-direction:column}
}
@media(prefers-reduced-motion:reduce){*{animation-duration:.001ms!important;transition-duration:.001ms!important}}

.rh-puzzle{display:block;max-width:100%;overflow-x:auto;margin:.3rem 0}
.rh-puzzle__board{position:relative;overflow:hidden;border-radius:12px;border:1px solid #2a2650;background:#0d0a22;box-shadow:inset 0 1px 0 rgba(255,255,255,.05);touch-action:none}
.rh-puzzle__bg{display:block;width:100%;height:auto;pointer-events:none;user-select:none}
.rh-puzzle__piece{position:absolute;left:0;pointer-events:none;user-select:none;filter:drop-shadow(0 6px 10px rgba(0,0,0,.5))}
.rh-puzzle__track{position:relative;margin-top:10px;height:40px;border-radius:999px;border:1px solid #2a2650;background:linear-gradient(90deg,rgba(124,92,255,.16),rgba(124,92,255,.04));display:flex;align-items:center}
.rh-puzzle__range{-webkit-appearance:none;appearance:none;width:100%;height:40px;margin:0;background:transparent;cursor:grab}
.rh-puzzle__range:active{cursor:grabbing}
.rh-puzzle__range:focus-visible{outline:2px solid #8b6dff;outline-offset:3px;border-radius:999px}
.rh-puzzle__range::-webkit-slider-thumb{-webkit-appearance:none;appearance:none;width:46px;height:38px;border-radius:999px;background:linear-gradient(180deg,#8b6dff,#6d4fe0);border:1px solid rgba(255,255,255,.25);box-shadow:0 3px 10px rgba(124,92,255,.45);cursor:grab}
.rh-puzzle__range::-moz-range-thumb{width:46px;height:38px;border-radius:999px;background:linear-gradient(180deg,#8b6dff,#6d4fe0);border:1px solid rgba(255,255,255,.25);box-shadow:0 3px 10px rgba(124,92,255,.45);cursor:grab}
.rh-puzzle[data-state=set] .rh-puzzle__track{background:linear-gradient(90deg,rgba(80,200,140,.18),rgba(80,200,140,.05));border-color:rgba(80,200,140,.45)}
.rh-puzzle__row{display:flex;align-items:center;justify-content:space-between;gap:.5rem;margin-bottom:.4rem}
.rh-puzzle__refresh{background:none;border:1px solid rgba(125,140,175,.4);color:inherit;border-radius:8px;padding:.25rem .6rem;font-size:.78rem;cursor:pointer;opacity:.85}
.rh-puzzle__refresh:hover{opacity:1;border-color:#8b6dff}
.rh-puzzle__hint{margin:.4rem 0 0;font-size:.8rem;color:#8a93b5}
.rh-puzzle__note{margin:.4rem 0 0;font-size:.82rem;color:#e0556f}