/* ========== ماسیا — طراحی لوکس فارسی با پوستهٔ شب/روز ========== */
:root{
  color-scheme:dark;
  --bg:#0a0c10;
  --bg2:#0d1016;
  --card:rgba(255,255,255,.035);
  --card2:rgba(255,255,255,.055);
  --line:rgba(255,255,255,.09);
  --line-gold:rgba(216,178,106,.4);
  --text:#f4efe6;
  --muted:#a9a49b;
  --faint:#6d6a63;
  --gold:#d8b26a;
  --gold-2:#f2dca8;
  --gold-3:#a97e3f;
  --grad:linear-gradient(135deg,#f6e3b4 0%,#d8b26a 45%,#a97e3f 100%);
  --on-grad:#1c1406;
  --glow:rgba(216,178,106,.28);
  --select:rgba(216,178,106,.35);
  --hover:rgba(255,255,255,.06);
  --input:rgba(0,0,0,.30);
  --header-bg:rgba(10,12,16,.55);
  --header-bg2:rgba(10,12,16,.85);
  --header-bg3:rgba(10,12,16,.97);
  --orb1:rgba(216,178,106,.14);
  --orb2:rgba(80,110,180,.12);
  --orb3:rgba(216,178,106,.08);
  --glow1:rgba(216,178,106,.10);
  --glow2:rgba(90,120,190,.07);
  --grid-line:rgba(255,255,255,.028);
  --pill-bg:rgba(216,178,106,.10);
  --pill-line:rgba(216,178,106,.30);
  --studio-bg:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  --gold-line:rgba(216,178,106,.7);
  --focus-line:rgba(216,178,106,.65);
  --focus-ring:rgba(216,178,106,.12);
  --chip-on-bg:rgba(216,178,106,.14);
  --chip-on-line:rgba(216,178,106,.6);
  --item-bg:rgba(255,255,255,.03);
  --item-line:rgba(255,255,255,.06);
  --num-bg:rgba(216,178,106,.10);
  --err-bg:rgba(190,60,60,.12);
  --err-line:rgba(190,60,60,.4);
  --err-text:#f0b6b6;
  --ok:#5f8f6a;
  --scroll:rgba(216,178,106,.35);
  --cta-bg:linear-gradient(180deg,rgba(216,178,106,.10),rgba(216,178,106,.03));
  --footer-bg:rgba(0,0,0,.25);
  --shadow:0 20px 60px rgba(0,0,0,.45);
  --font:'Vazirmatn','Estedad','Dana',Tahoma,sans-serif;
}
/* ---------- پوستهٔ روز ---------- */
html[data-theme="light"]{
  color-scheme:light;
  --bg:#f6f3ec;
  --bg2:#fbf9f4;
  --card:rgba(24,18,8,.04);
  --card2:rgba(24,18,8,.07);
  --line:rgba(24,18,8,.12);
  --line-gold:rgba(138,106,47,.45);
  --text:#191410;
  --muted:#5f5a4e;
  --faint:#8a857a;
  --gold:#8a6a2f;
  --gold-2:#6e5322;
  --gold-3:#b98a44;
  --grad:linear-gradient(135deg,#e9cf96 0%,#c9a05a 45%,#9a7434 100%);
  --on-grad:#221a08;
  --glow:rgba(154,116,52,.22);
  --select:rgba(154,116,52,.25);
  --hover:rgba(24,18,8,.05);
  --input:rgba(255,255,255,.7);
  --header-bg:rgba(246,243,236,.6);
  --header-bg2:rgba(246,243,236,.9);
  --header-bg3:rgba(246,243,236,.97);
  --orb1:rgba(201,160,90,.20);
  --orb2:rgba(120,140,190,.14);
  --orb3:rgba(201,160,90,.14);
  --glow1:rgba(201,160,90,.16);
  --glow2:rgba(120,140,190,.08);
  --grid-line:rgba(24,18,8,.05);
  --pill-bg:rgba(154,116,52,.09);
  --pill-line:rgba(154,116,52,.32);
  --studio-bg:linear-gradient(180deg,rgba(255,255,255,.75),rgba(255,255,255,.45));
  --gold-line:rgba(154,116,52,.55);
  --focus-line:rgba(154,116,52,.6);
  --focus-ring:rgba(154,116,52,.14);
  --chip-on-bg:rgba(154,116,52,.12);
  --chip-on-line:rgba(154,116,52,.55);
  --item-bg:rgba(255,255,255,.55);
  --item-line:rgba(24,18,8,.08);
  --num-bg:rgba(154,116,52,.10);
  --err-bg:rgba(190,60,60,.08);
  --err-line:rgba(190,60,60,.35);
  --err-text:#a33d3d;
  --ok:#3f7a4c;
  --scroll:rgba(138,106,47,.4);
  --cta-bg:linear-gradient(180deg,rgba(201,160,90,.16),rgba(201,160,90,.05));
  --footer-bg:rgba(255,255,255,.5);
  --shadow:0 20px 60px rgba(90,70,30,.14);
}
[hidden]{display:none!important}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text);
  direction:rtl;
  text-align:right;
  overflow-x:hidden;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  transition:background-color .45s ease,color .45s ease;
}
::selection{background:var(--select)}
.wrap{max-width:1140px;margin-inline:auto;padding-inline:24px}
.narrow{max-width:820px}

/* پس‌زمینه */
.orbs{position:fixed;inset:0;z-index:-1;overflow:hidden;
  background:
    radial-gradient(1100px 500px at 85% -10%, var(--glow1), transparent 60%),
    radial-gradient(900px 500px at 10% 20%, var(--glow2), transparent 60%),
    var(--bg);
  transition:background .45s ease;
}
.orbs::after{content:"";position:absolute;inset:0;
  background-image:linear-gradient(var(--grid-line) 1px,transparent 1px),linear-gradient(90deg,var(--grid-line) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(700px 400px at 70% 0%,#000 0%,transparent 75%);
}
.orb{position:absolute;border-radius:50%;filter:blur(90px);opacity:.5;animation:float 14s ease-in-out infinite}
.o1{width:420px;height:420px;background:var(--orb1);top:-120px;right:-80px}
.o2{width:360px;height:360px;background:var(--orb2);top:40%;left:-140px;animation-delay:-5s}
.o3{width:300px;height:300px;background:var(--orb3);bottom:-100px;right:30%;animation-delay:-9s}
@keyframes float{0%,100%{transform:translateY(0) scale(1)}50%{transform:translateY(-28px) scale(1.05)}}

/* هدر */
#header{position:sticky;top:0;z-index:50;backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  background:var(--header-bg);border-bottom:1px solid transparent;transition:border-color .3s,background .3s}
#header.scrolled{border-color:var(--line);background:var(--header-bg2)}
.header-in{display:flex;align-items:center;gap:20px;height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--text)}
.brand .mark{display:grid;place-items:center;width:42px;height:42px;border-radius:14px;background:var(--grad);color:var(--on-grad);font-size:20px;box-shadow:0 6px 22px var(--glow)}
.brand-t{display:flex;flex-direction:column;line-height:1.35}
.brand-t b{font-size:17px;font-weight:800}
.brand-t i{font-style:normal;font-size:11px;color:var(--muted)}
.nav{display:flex;gap:6px;margin-inline-start:auto}
.nav a{color:var(--muted);text-decoration:none;font-size:14px;font-weight:500;padding:8px 14px;border-radius:12px;transition:.25s}
.nav a:hover{color:var(--text);background:var(--hover)}
.burger{display:none;background:none;border:0;cursor:pointer;flex-direction:column;gap:5px;padding:8px}
.burger span{width:22px;height:2px;background:var(--text);border-radius:2px;transition:.3s}

/* دکمهٔ شب/روز */
.theme-btn{display:grid;place-items:center;width:40px;height:40px;border-radius:12px;background:var(--card);
  border:1px solid var(--line);color:var(--text);cursor:pointer;transition:.25s;flex:none}
.theme-btn:hover{border-color:var(--line-gold);color:var(--gold-2);transform:translateY(-2px)}
html[data-theme="dark"] .t-moon{display:none}
html[data-theme="light"] .t-sun{display:none}

/* دکمه‌ها */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:0;cursor:pointer;text-decoration:none;
  font-family:var(--font);font-weight:700;font-size:15px;border-radius:14px;padding:13px 26px;transition:.28s;position:relative;overflow:hidden}
.btn-gold{background:var(--grad);color:var(--on-grad);box-shadow:0 10px 30px var(--glow)}
.btn-gold:hover{transform:translateY(-2px);box-shadow:0 16px 40px var(--glow)}
.btn-ghost{background:transparent;color:var(--text);border:1px solid var(--line)}
.btn-ghost:hover{border-color:var(--line-gold);color:var(--gold-2);transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:13px;border-radius:12px}
.btn-lg{padding:16px 34px;font-size:16px;border-radius:16px}
.btn:disabled{opacity:.55;cursor:wait;transform:none}

/* هیرو */
.hero{padding-top:96px;padding-bottom:40px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:26px}
.pill{font-size:13px;font-weight:600;color:var(--gold-2);background:var(--pill-bg);border:1px solid var(--pill-line);
  padding:8px 20px;border-radius:100px;backdrop-filter:blur(6px)}
.hero h1{font-size:clamp(2.1rem,6vw,4rem);font-weight:900;line-height:1.45;letter-spacing:-.5px}
.hero h1 .hl{background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent;
  filter:drop-shadow(0 6px 30px var(--glow))}
.hero .sub{max-width:660px;color:var(--muted);font-size:clamp(.95rem,2vw,1.12rem);line-height:2.1}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;justify-content:center}
.stats{display:grid;grid-template-columns:repeat(4,minmax(120px,1fr));gap:14px;width:100%;max-width:820px;margin-top:34px}
.stat{background:var(--card);border:1px solid var(--line);border-radius:18px;padding:18px 10px;backdrop-filter:blur(8px);transition:.3s}
.stat:hover{transform:translateY(-4px);border-color:var(--line-gold);background:var(--card2)}
.stat b{display:block;font-size:clamp(1.4rem,3vw,1.9rem);font-weight:900;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:12px;color:var(--muted)}

/* بخش‌ها */
.section{padding-top:96px}
.sec-head{text-align:center;max-width:640px;margin:0 auto 48px;display:flex;flex-direction:column;gap:10px;align-items:center}
.eyebrow{font-size:12.5px;font-weight:700;letter-spacing:.5px;color:var(--gold);background:var(--pill-bg);
  border:1px solid var(--pill-line);padding:5px 16px;border-radius:100px}
.sec-head h2{font-size:clamp(1.5rem,3.6vw,2.3rem);font-weight:800;line-height:1.6}
.sec-head p{color:var(--muted);font-size:15px}

/* استودیو */
.studio-card{background:var(--studio-bg);border:1px solid var(--line);
  border-radius:var(--radius);padding:clamp(22px,4vw,40px);box-shadow:var(--shadow);position:relative;overflow:hidden}
.studio-card::before{content:"";position:absolute;inset-inline:0;top:0;height:1px;background:linear-gradient(90deg,transparent,var(--gold-line),transparent)}
.fld-label{display:block;font-size:14px;font-weight:700;margin-bottom:10px;color:var(--text)}
#gen-biz{width:100%;background:var(--input);border:1px solid var(--line);border-radius:16px;color:var(--text);
  font-family:var(--font);font-size:15px;padding:16px 18px;resize:vertical;min-height:92px;transition:.25s;line-height:1.9}
#gen-biz:focus{outline:none;border-color:var(--focus-line);box-shadow:0 0 0 4px var(--focus-ring)}
#gen-biz::placeholder{color:var(--faint)}
.type-row{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin:20px 0 24px}
.type-row .fld-label{margin:0}
.chips{display:flex;gap:10px;flex-wrap:wrap}
.chip{background:var(--card);border:1px solid var(--line);color:var(--muted);border-radius:100px;
  padding:9px 20px;font-size:13.5px;font-weight:600;cursor:pointer;transition:.25s;font-family:var(--font)}
.chip:hover{color:var(--text);border-color:var(--line-gold)}
.chip.on{background:var(--chip-on-bg);border-color:var(--chip-on-line);color:var(--gold-2)}
.hint{color:var(--muted);font-size:12.5px;margin-top:14px}
#gen-form .btn{width:100%}

/* خروجی تولید */
#gen-out{margin-top:30px;border-top:1px dashed var(--line);padding-top:26px}
.gen-status{display:flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--gold-2);margin-bottom:18px}
.gen-status .dot{width:9px;height:9px;border-radius:50%;background:var(--gold);animation:pulse 1.1s infinite}
.gen-status.idle .dot{animation:none;background:var(--ok)}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.35;transform:scale(.8)}}
.gen-status .count{margin-inline-start:auto;font-size:13px;color:var(--muted);font-weight:500}
.gen-list{display:flex;flex-direction:column;gap:8px;max-height:460px;overflow-y:auto;padding-inline-end:6px}
.gen-list::-webkit-scrollbar{width:6px}
.gen-list::-webkit-scrollbar-thumb{background:var(--scroll);border-radius:6px}
.gen-cat{font-size:14px;font-weight:800;color:var(--gold);margin:16px 0 4px;display:flex;align-items:center;gap:10px}
.gen-cat::after{content:"";flex:1;height:1px;background:linear-gradient(90deg,var(--gold-line),transparent)}
.gen-item{display:flex;gap:12px;align-items:baseline;background:var(--item-bg);border:1px solid var(--item-line);
  border-radius:13px;padding:10px 16px;font-size:14.5px;line-height:1.9;animation:pop .45s cubic-bezier(.2,.9,.3,1.2)}
.gen-item i{font-style:normal;font-size:12px;font-weight:800;color:var(--gold);min-width:30px;text-align:center;
  background:var(--num-bg);border-radius:8px;padding:2px 0}
@keyframes pop{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:none}}
.gen-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:22px}
.gen-err{background:var(--err-bg);border:1px solid var(--err-line);color:var(--err-text);border-radius:14px;padding:14px 18px;font-size:14px}

/* امکانات */
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.fcard{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:28px 24px;transition:.35s;position:relative;overflow:hidden}
.fcard::before{content:"";position:absolute;inset-inline-start:0;top:0;bottom:0;width:2px;background:var(--grad);opacity:0;transition:.35s}
.fcard:hover{transform:translateY(-6px);background:var(--card2);border-color:var(--line-gold);box-shadow:var(--shadow)}
.fcard:hover::before{opacity:1}
.fcard .ic{font-size:26px;display:grid;place-items:center;width:56px;height:56px;border-radius:16px;
  background:var(--num-bg);border:1px solid var(--pill-line);margin-bottom:18px}
.fcard h3{font-size:16.5px;font-weight:800;margin-bottom:8px}
.fcard p{color:var(--muted);font-size:13.5px;line-height:2}

/* مراحل */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;counter-reset:step}
.step{background:var(--card);border:1px solid var(--line);border-radius:20px;padding:30px 26px;position:relative;transition:.35s}
.step:hover{transform:translateY(-5px);border-color:var(--line-gold)}
.step .num{counter-increment:step;font-weight:900;font-size:15px;color:var(--on-grad);background:var(--grad);
  width:44px;height:44px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;box-shadow:0 8px 24px var(--glow)}
.step .num::before{content:counter(step, persian)}
.step h3{font-size:16px;font-weight:800;margin-bottom:8px}
.step p{color:var(--muted);font-size:13.5px;line-height:2}

/* دسته‌ها */
.cats{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.cat{background:var(--card);border:1px solid var(--line);border-radius:16px;padding:18px 16px;font-size:13.5px;font-weight:600;
  line-height:1.9;transition:.3s;display:flex;gap:10px;align-items:baseline}
.cat i{font-style:normal;color:var(--gold);font-weight:900;font-size:13px}
.cat:hover{background:var(--card2);border-color:var(--line-gold);transform:translateY(-3px)}

/* سوالات */
#faq-list{display:flex;flex-direction:column;gap:12px}
.faq{background:var(--card);border:1px solid var(--line);border-radius:16px;overflow:hidden;transition:.3s}
.faq.open{border-color:var(--line-gold)}
.faq button{all:unset;display:flex;justify-content:space-between;align-items:center;gap:14px;width:100%;box-sizing:border-box;
  padding:18px 22px;cursor:pointer;font-size:14.5px;font-weight:700;color:var(--text);font-family:var(--font)}
.faq button .ar{transition:.35s;color:var(--gold);font-size:18px;line-height:1}
.faq.open .ar{transform:rotate(45deg)}
.faq .ans{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq .ans p{padding:0 22px 20px;color:var(--muted);font-size:13.5px;line-height:2.1}

/* دعوت پایانی */
.cta-band{text-align:center;background:var(--cta-bg);
  border:1px solid var(--pill-line);border-radius:28px;padding:clamp(36px,6vw,64px);position:relative;overflow:hidden}
.cta-band::before{content:"";position:absolute;width:300px;height:300px;border-radius:50%;background:var(--orb1);
  filter:blur(80px);top:-120px;inset-inline-start:-60px}
.cta-band h2{font-size:clamp(1.4rem,3.4vw,2.1rem);font-weight:900;margin-bottom:12px}
.cta-band p{color:var(--muted);margin-bottom:28px;font-size:15px}

/* فوتر */
footer{border-top:1px solid var(--line);margin-top:96px;padding:44px 0;background:var(--footer-bg)}
.foot-in{display:flex;flex-direction:column;gap:14px;align-items:center;text-align:center}
.foot-brand .mark{width:36px;height:36px;font-size:16px;border-radius:12px}
#foot-about{color:var(--muted);font-size:13px;max-width:520px}
.copy{color:var(--faint);font-size:12px}

/* انیمیشن ظهور */
.reveal{opacity:0;transform:translateY(26px);transition:opacity .8s ease,transform .8s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ریسپانسیو */
@media (max-width:960px){
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .cats{grid-template-columns:repeat(3,1fr)}
  .steps{grid-template-columns:1fr;max-width:520px;margin-inline:auto}
}
@media (max-width:760px){
  .nav{position:fixed;inset:74px 0 auto 0;background:var(--header-bg3);backdrop-filter:blur(16px);
    flex-direction:column;padding:18px 24px 26px;gap:4px;border-bottom:1px solid var(--line);
    transform:translateY(-130%);transition:transform .4s cubic-bezier(.2,.8,.3,1);margin:0}
  .nav.open{transform:none}
  .nav a{padding:13px 16px;font-size:15px}
  .burger{display:flex;margin-inline-start:0}
  .theme-btn{margin-inline-start:auto}
  #header-cta{display:none}
  .stats{grid-template-columns:repeat(2,1fr)}
  .hero{padding-top:64px}
  .section{padding-top:72px}
}
@media (max-width:560px){
  .grid-4{grid-template-columns:1fr}
  .cats{grid-template-columns:repeat(2,1fr)}
  .gen-actions .btn{flex:1}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
}