/* ==========================================================================
   آرنا فارسی — بازسازی رابط با وزیرمتن، چیدمان راست‌به‌چپ
   اندازه‌های ساختاری از نسخهٔ اصلی گرفته شده؛ متن‌ها فارسی‌سازی شده‌اند.
   ========================================================================== */

@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Thin.woff2') format('woff2');font-weight:100;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-ExtraLight.woff2') format('woff2');font-weight:200;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Light.woff2') format('woff2');font-weight:300;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Regular.woff2') format('woff2');font-weight:400;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Medium.woff2') format('woff2');font-weight:500;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-SemiBold.woff2') format('woff2');font-weight:600;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Bold.woff2') format('woff2');font-weight:700;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-ExtraBold.woff2') format('woff2');font-weight:800;font-display:swap}
@font-face{font-family:'Vazirmatn';src:url('../fonts/Vazirmatn-Black.woff2') format('woff2');font-weight:900;font-display:swap}

:root{
  --surface-primary:   hsl(36 45% 98%);
  --surface-white:     #fff;
  --surface-tertiary:  hsl(33 31% 94%);
  --surface-raised:    hsl(33 28% 92%);
  --text-primary:      hsl(24 6% 17%);
  --text-heading:      hsl(60 3% 14%);
  --text-secondary:    hsl(30 7% 24%);
  --text-tertiary:     hsl(35 6% 38%);
  --text-muted:        hsl(37 5% 52%);
  --text-placeholder:  hsl(30 7% 24% / .32);
  --border-faint:      hsl(30 5% 93%);
  --border-medium:     hsl(30 9% 87%);
  --border-strong:     hsl(30 9% 83%);
  --cta:               hsl(60 3% 14%);
  --cta-hover:         hsl(24 6% 23%);
  --on-cta:            hsl(36 45% 98%);
  --highlight:         #f4c406;
  --sidebar-w: 240px;
  --content-w: 672px;
  --font: 'Vazirmatn', ui-sans-serif, system-ui, -apple-system, 'Segoe UI', sans-serif;
  --ease: cubic-bezier(.4,0,.2,1);
}

*,*::before,*::after{box-sizing:border-box}
html,body{height:100%}
html{-webkit-font-smoothing:antialiased;-moz-osx-font-smoothing:grayscale}
body{
  margin:0;font-family:var(--font);font-size:16px;line-height:1.7;font-weight:400;
  color:var(--text-primary);background:var(--surface-primary);
  direction:rtl;text-align:right;
}
button{font:inherit;color:inherit;background:none;border:0;padding:0;cursor:pointer}
a{color:inherit;text-decoration:none}
svg{display:block;flex:none}
::selection{background:var(--highlight);color:var(--text-primary)}

.app{display:flex;height:100vh;height:100dvh;overflow:hidden}

/* ---------------- سایدبار (سمت راست در RTL) ---------------- */
.sidebar{
  width:var(--sidebar-w);flex:none;display:flex;flex-direction:column;
  position:relative;transition:width .2s var(--ease);order:2;
}
.sidebar::after{content:"";position:absolute;inset-block:0;inset-inline-start:0;width:1px;background:var(--border-faint)}
.sidebar-head{padding:16px 16px 8px;display:flex;align-items:center;justify-content:space-between;gap:8px}
.brand{display:flex;align-items:center;gap:6px;color:var(--text-primary)}
.brand svg{height:22px;width:auto}
.brand .fa-tag{
  font-size:10px;font-weight:700;color:var(--text-tertiary);border:1px solid var(--border-medium);
  border-radius:5px;padding:1px 5px;line-height:1.5;
}
.icon-btn{width:26px;height:26px;display:grid;place-items:center;border-radius:6px;color:var(--text-primary);transition:background .15s var(--ease)}
.icon-btn:hover{background:var(--surface-raised)}
.icon-btn svg{width:18px;height:18px}

.sidebar-nav{padding:8px 12px;display:flex;flex-direction:column;gap:3px}
.nav-item{
  display:flex;align-items:center;gap:9px;padding:6px 8px;border-radius:6px;
  font-size:14px;line-height:1.5;font-weight:400;color:var(--text-tertiary);
  transition:background .15s var(--ease),color .15s var(--ease);
}
.nav-item svg{width:19px;height:19px;flex:none}
.nav-item:hover{background:var(--surface-raised);color:var(--text-primary)}
.nav-item .chev{width:16px;height:16px}

.sidebar-spacer{flex:1}
.sidebar-foot{padding:16px;display:flex;flex-direction:column;gap:9px;border-top:1px solid var(--border-faint)}
.unlock{padding:0 4px 4px;display:flex;flex-direction:column;gap:5px;text-align:start}
.unlock h3{margin:0;font-size:15px;line-height:1.6;font-weight:700;color:var(--text-heading)}
.unlock p{margin:0;font-size:12px;line-height:1.9;color:var(--text-secondary)}
.btn-login{
  height:44px;display:flex;align-items:center;justify-content:center;
  background:var(--cta);color:var(--on-cta);border-radius:6px;
  font-size:14px;font-weight:500;transition:background .18s var(--ease);
}
.btn-login:hover{background:var(--cta-hover)}
.legal{display:flex;gap:14px;padding:0 4px;font-size:11px;line-height:1.8;color:var(--text-tertiary);flex-wrap:wrap}
.legal a:hover{color:var(--text-primary);text-decoration:underline}

/* ---------------- ناحیهٔ اصلی ---------------- */
.main{flex:1;position:relative;display:flex;flex-direction:column;min-width:0;order:1}

.topbar{
  position:absolute;inset-block-start:0;inset-inline:0;
  display:flex;align-items:center;justify-content:flex-end;gap:8px;padding:10px;z-index:5;
}
.btn-ghost{
  height:38px;padding:8px 16px;display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--border-faint);border-radius:6px;font-size:13.5px;color:#1d1d1b;
  transition:background .15s var(--ease),border-color .15s var(--ease);
}
.btn-ghost:hover{background:var(--surface-raised);border-color:var(--border-medium)}
.btn-primary{
  height:36px;padding:8px 16px;display:inline-flex;align-items:center;gap:8px;
  background:var(--text-heading);color:var(--on-cta);border-radius:6px;font-size:13.5px;
  transition:background .15s var(--ease);
}
.btn-primary:hover{background:var(--cta-hover)}

/* قهرمان */
.hero{
  flex:1;display:flex;flex-direction:column;justify-content:center;align-items:center;
  padding:0 24px 40px;overflow-y:auto;
}
.hero-inner{width:100%;max-width:var(--content-w);display:flex;flex-direction:column}

.hero-logo{display:flex;justify-content:center;color:var(--text-primary);margin-bottom:14px}
.hero-logo svg{height:28px;width:auto}

h1.hero-title{
  margin:0 0 28px;text-align:center;
  font-size:40px;line-height:1.45;font-weight:800;letter-spacing:-1px;color:var(--text-tertiary);
}
h1.hero-title .hl{
  display:inline-block;background:var(--highlight);color:var(--text-primary);
  padding:0 10px;border-radius:4px;line-height:1.35;
}

/* جعبهٔ ورودی */
.composer{
  position:relative;width:100%;height:132px;background:var(--surface-white);
  border:1px solid var(--border-medium);border-radius:14px;
  display:flex;flex-direction:column;
}
.composer textarea{
  flex:1;width:100%;padding:14px 16px;border:0;outline:none;resize:none;background:transparent;
  font-family:var(--font);font-size:15px;line-height:1.9;color:var(--text-primary);
  border-radius:14px 14px 0 0;
}
.composer textarea::placeholder{color:var(--text-placeholder);opacity:1}
.composer-bar{display:flex;align-items:center;gap:8px;padding:0 12px 12px}
.pill{
  height:32px;padding:0 10px;display:inline-flex;align-items:center;gap:7px;
  border-radius:8px;font-size:13.5px;color:var(--text-primary);transition:background .15s var(--ease);
}
.pill:hover{background:var(--surface-raised)}
.pill svg{width:16px;height:16px}
.pill .chev{width:16px;height:16px;opacity:.7}
.add-files{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;color:var(--text-secondary);transition:background .15s var(--ease)}
.add-files:hover{background:var(--surface-raised)}
.add-files svg{width:15px;height:15px}
.composer-bar .spacer{flex:1}
.send{width:32px;height:32px;display:grid;place-items:center;border-radius:8px;color:#1d1d1b;transition:background .15s var(--ease)}
.send:hover{background:var(--surface-raised)}
.send svg{width:16px;height:16px}

/* شروع سریع */
.getstarted{margin-top:20px}
.getstarted-label{display:block;font-size:12.5px;font-weight:600;color:var(--text-tertiary);margin-bottom:9px}
.cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:8px}
.card{
  display:flex;align-items:center;gap:9px;text-align:start;height:52px;padding:8px 10px;
  border-radius:10px;background:var(--surface-primary);border:1px solid var(--border-medium);
  transition:background .15s var(--ease),border-color .15s var(--ease);
}
.card:hover{background:var(--surface-white);border-color:var(--border-strong)}
.card-icon{width:32px;height:32px;flex:none;display:grid;place-items:center;background:var(--surface-raised);border-radius:8px;color:var(--text-primary)}
.card-icon svg{width:16px;height:16px}
.card-txt{display:flex;flex-direction:column;min-width:0;gap:1px}
.card-title{font-size:12.5px;line-height:1.6;font-weight:600;color:var(--text-heading);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.card-sub{font-size:10.5px;line-height:1.6;color:var(--text-tertiary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}

/* ---------------- منوها ---------------- */
.menu{
  position:absolute;z-index:60;min-width:230px;padding:5px;
  background:var(--surface-white);border:1px solid var(--border-medium);border-radius:11px;
  box-shadow:0 10px 32px -10px rgba(23,20,15,.25), 0 2px 6px rgba(23,20,15,.06);
  animation:menuIn .12s var(--ease);
}
@keyframes menuIn{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:none}}
.menu[hidden]{display:none}
.menu-item{display:flex;align-items:center;gap:8px;width:100%;padding:8px 9px;border-radius:7px;font-size:13px;line-height:1.7;color:var(--text-primary);text-align:start}
.menu-item:hover{background:var(--surface-tertiary)}
.menu-item .sub{display:block;font-size:11px;line-height:1.7;color:var(--text-tertiary);margin-top:1px}
.menu-item .check{margin-inline-start:auto;opacity:0;color:var(--text-primary)}
.menu-item[aria-checked="true"] .check{opacity:1}
.menu-sep{height:1px;background:var(--border-faint);margin:4px 2px}

/* ---------------- مودال ورود ---------------- */
.scrim{position:fixed;inset:0;z-index:100;display:grid;place-items:center;background:rgba(28,26,22,.42);backdrop-filter:blur(2px);animation:fadeIn .16s var(--ease)}
.scrim[hidden]{display:none}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.modal{width:min(400px,calc(100vw - 32px));background:var(--surface-white);border-radius:14px;padding:24px;box-shadow:0 24px 60px -20px rgba(23,20,15,.4);animation:pop .18s var(--ease);position:relative}
@keyframes pop{from{opacity:0;transform:translateY(8px) scale(.99)}to{opacity:1;transform:none}}
.modal h2{margin:0 0 6px;font-size:20px;font-weight:800;color:var(--text-heading)}
.modal p.sub{margin:0 0 18px;font-size:12.5px;line-height:1.9;color:var(--text-tertiary)}
.field{display:flex;flex-direction:column;gap:6px;margin-bottom:13px}
.field label{font-size:12px;font-weight:600;color:var(--text-secondary)}
.field input{height:42px;padding:0 13px;border:1px solid var(--border-medium);border-radius:8px;font:inherit;font-size:14px;background:var(--surface-white);outline:none;color:var(--text-primary)}
.field input:focus{border-color:hsl(208 87% 53%);box-shadow:0 0 0 3px hsl(208 87% 53% / .14)}
.modal .submit{width:100%;height:42px;display:flex;align-items:center;justify-content:center;background:var(--cta);color:var(--on-cta);border-radius:8px;font-size:14px;font-weight:600}
.modal .submit:hover{background:var(--cta-hover)}
.modal .x{position:absolute;inset-block-start:12px;inset-inline-start:12px;width:28px;height:28px;display:grid;place-items:center;border-radius:7px;color:var(--text-tertiary);font-size:12px}
.modal .x:hover{background:var(--surface-tertiary)}

/* ---------------- واکنش‌گرا ---------------- */
@media (max-width:1100px){ :root{--content-w:620px} }
@media (max-width:900px){
  .sidebar{display:none}
  .topbar{position:static;justify-content:center;padding:12px}
  .hero{justify-content:flex-start;padding:8px 16px 32px}
  .cards{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  h1.hero-title{font-size:27px;letter-spacing:-.5px;margin-bottom:20px}
  .hero-logo svg{height:22px}
  .cards{grid-template-columns:1fr}
  .composer{height:auto;min-height:124px}
  .composer textarea{min-height:64px}
  .btn-ghost,.btn-primary{height:34px;padding:6px 12px;font-size:12.5px}
}
@media (prefers-reduced-motion:reduce){*{animation:none!important;transition:none!important}}