/* ================================================
   RNOSRAT — Shared Styles v1.0
   ================================================ */

/* ---- Variables ---- */
:root {
  --bg:          #03060d;
  --bg2:         #060912;
  --fg:          #eef3fb;
  --muted:       rgba(238,243,251,.6);
  --line:        rgba(255,255,255,.1);
  --card:        rgba(12,20,40,.72);
  --card-border: rgba(255,255,255,.1);
  --accent:      #3aaeff;
  --accent2:     #2060ff;
  --nav-height:  86px;
  --radius:      20px;
}
[data-theme="light"] {
  --bg:          #f0f4fb;
  --bg2:         #e8eef8;
  --fg:          #0d1520;
  --muted:       rgba(13,21,32,.62);
  --line:        rgba(0,0,0,.1);
  --card:        rgba(255,255,255,.88);
  --card-border: rgba(0,0,0,.09);
  --accent:      #1d6fd4;
  --accent2:     #2563eb;
}

/* ---- Reset ---- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg);color:var(--fg);
  font-family:'Manrope','Vazirmatn',system-ui,sans-serif;
  -webkit-font-smoothing:antialiased;
  padding-top:var(--nav-height);
  overflow-x:hidden;
  transition:background .35s ease,color .35s ease;
  min-height:100vh;
}
body.home-page{padding-top:0}

/* ---- Typography ---- */
h1,h2,h3,h4{font-family:'Syne','Vazirmatn',sans-serif;line-height:1.1;letter-spacing:-.01em}
[data-site-lang="fa"] h1,
[data-site-lang="fa"] h2,
[data-site-lang="fa"] h3{font-family:'Vazirmatn',sans-serif;letter-spacing:0}
p{line-height:1.75}
a{color:var(--accent);text-decoration:none;transition:color .2s}
a:hover{color:var(--accent2)}

/* ---- Container ---- */
.container{max-width:1100px;margin:0 auto;padding:0 clamp(16px,4vw,48px)}

/* ---- Section ---- */
.section{padding:clamp(60px,8vw,120px) 0;position:relative}
.section-tag{
  font-size:10px;letter-spacing:.44em;text-transform:uppercase;
  color:var(--accent);margin-bottom:18px;display:block;
  font-family:'Manrope','Vazirmatn',sans-serif;
}

/* ---- Cards ---- */
.card{
  background:var(--card);border:1px solid var(--card-border);
  border-radius:var(--radius);padding:clamp(20px,3vw,32px);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  transition:background .3s ease,border-color .3s ease,transform .28s ease,box-shadow .28s ease;
  position:relative;overflow:hidden;
}
.card::before{
  content:"";position:absolute;inset:0;border-radius:inherit;
  background:linear-gradient(135deg,rgba(255,255,255,.04),transparent 60%);
  pointer-events:none;
}
.card:hover{transform:translateY(-4px);box-shadow:0 20px 60px rgba(0,0,0,.35),0 0 0 1px rgba(58,174,255,.18)}
[data-theme="light"] .card{box-shadow:0 4px 28px rgba(0,0,0,.08)}
[data-theme="light"] .card:hover{box-shadow:0 16px 48px rgba(0,0,0,.14)}

/* ---- Grid cards ---- */
.grid-cards{
  display:grid;
  grid-template-columns:repeat(auto-fill,minmax(min(300px,100%),1fr));
  gap:20px;margin-top:40px;
}

/* ---- Buttons ---- */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 24px;border-radius:999px;
  border:1px solid var(--line);background:var(--card);color:var(--fg);
  font-size:14px;font-weight:500;cursor:pointer;text-decoration:none;
  font-family:'Manrope','Vazirmatn',sans-serif;
  transition:all .25s ease;white-space:nowrap;
}
.btn:hover{background:rgba(255,255,255,.1);border-color:var(--accent);color:var(--accent);transform:translateY(-2px)}
[data-theme="light"] .btn:hover{background:rgba(0,0,0,.06)}
.btn.primary{
  background:var(--accent);border-color:var(--accent);color:#fff;
  box-shadow:0 4px 22px rgba(58,174,255,.35);
}
.btn.primary:hover{filter:brightness(1.12);transform:translateY(-2px);color:#fff}
.btn .arrow{transition:transform .25s ease;display:inline-block}
.btn:hover .arrow{transform:translateX(5px)}

/* ---- Tags ---- */
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:12px}
.tag{
  background:rgba(58,174,255,.12);color:var(--accent);
  border:1px solid rgba(58,174,255,.22);
  padding:5px 12px;border-radius:999px;font-size:12px;
  font-family:'Manrope','Vazirmatn',sans-serif;
  transition:background .2s,border-color .2s;
}
[data-theme="light"] .tag{background:rgba(29,111,212,.1);color:var(--accent2);border-color:rgba(29,111,212,.18)}

/* ---- Reveal animation ---- */
.reveal{opacity:0;transform:translateY(22px);transition:opacity .65s ease,transform .65s ease}
.reveal.in-view{opacity:1;transform:none}

/* ---- Footer (centered glass pill, like navbar) ---- */
.rn-footer{
  background:transparent;border:none;
  padding:0 16px 22px;position:relative;z-index:2;
}
.rn-footer-wrap{
  max-width:min(96vw,1180px);margin:0 auto;
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;flex-wrap:wrap;
  /* identical layout in FA & EN */
  direction:ltr;
  position:relative;overflow:hidden;
  padding:14px 24px;border-radius:999px;
  background:rgba(8,14,30,.74);
  -webkit-backdrop-filter:blur(26px) saturate(190%);
  backdrop-filter:blur(26px) saturate(190%);
  border:1px solid rgba(255,255,255,.18);
  box-shadow:0 8px 40px rgba(0,0,0,.5),
             inset 0 1px 0 rgba(255,255,255,.34),
             inset 0 -1px 0 rgba(255,255,255,.04);
  transition:background .35s,border-color .35s,box-shadow .35s;
}
[data-theme="light"] .rn-footer-wrap{
  background:linear-gradient(135deg,rgba(255,255,255,.62),rgba(225,238,252,.5));
  border-color:rgba(120,160,220,.35);
  box-shadow:0 10px 44px rgba(40,90,160,.18),
             inset 0 1px 0 rgba(255,255,255,.95),
             inset 0 -1px 0 rgba(120,160,220,.18);
}
/* electric sheen across the footer pill */
.rn-footer-wrap::before{
  content:"";position:absolute;top:0;left:-60%;width:55%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,.22),transparent);
  transform:skewX(-18deg);animation:nav-sheen 7s ease-in-out infinite;
  pointer-events:none;
}
[data-theme="light"] .rn-footer-wrap::before{
  background:linear-gradient(100deg,transparent,rgba(58,174,255,.42),rgba(120,200,255,.28),transparent);
}
.rn-footer-wrap>*{position:relative;z-index:1}
.rn-footer-email{
  color:var(--muted);font-size:13px;
  font-family:'Manrope','Vazirmatn',sans-serif;
  transition:color .3s;
  text-decoration:none;
}
.rn-footer-email:hover{color:var(--accent)}
[data-theme="light"] .rn-footer-email{color:var(--fg)}
[data-theme="light"] .rn-footer-email:hover{color:var(--accent2)}
.rn-social{display:flex;gap:10px;align-items:center}
.rn-icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid var(--card-border);
  text-decoration:none;transition:all .25s ease;
}
.rn-icon-btn:hover{
  background:rgba(58,174,255,.18);border-color:rgba(58,174,255,.42);
  transform:translateY(-2px);box-shadow:0 4px 16px rgba(58,174,255,.25);
}
[data-theme="light"] .rn-icon-btn{background:rgba(0,0,0,.05);border-color:rgba(0,0,0,.1)}
.rn-icon-btn svg path{fill:var(--muted);transition:fill .25s}
[data-theme="light"] .rn-icon-btn svg path{fill:var(--fg)}
.rn-icon-btn:hover svg path{fill:var(--accent)}

/* ---- Cursor blob ---- */
.cursor-blob{
  position:fixed;top:0;left:0;width:38vmin;height:38vmin;
  margin:-19vmin 0 0 -19vmin;border-radius:50%;pointer-events:none;
  z-index:2147483646;will-change:transform;
}
.cursor-blob.blob-dark{
  background:radial-gradient(circle at 30% 30%,rgba(58,174,255,.38),transparent 62%),
             radial-gradient(circle at 72% 70%,rgba(32,96,255,.28),transparent 60%);
  filter:blur(28px);opacity:.42;mix-blend-mode:screen;
}
.cursor-blob.blob-light{
  background:radial-gradient(circle at 50% 50%,rgba(120,155,210,.52),rgba(120,120,120,0) 72%);
  filter:blur(12px);opacity:.85;mix-blend-mode:multiply;
}
@media(prefers-reduced-motion:reduce){.cursor-blob{display:none}}

/* ---- Grain ---- */
.grain{
  position:fixed;inset:-50%;z-index:1;pointer-events:none;opacity:.04;
  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 type='fractalNoise' baseFrequency='.9' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  animation:grain-anim 1.2s steps(3) infinite;
}
@keyframes grain-anim{0%{transform:translate(0,0)}33%{transform:translate(-3%,2%)}66%{transform:translate(2%,-3%)}}

/* ---- Divider ---- */
.divider{height:1px;background:var(--line);margin:12px 0}

/* ---- Print ---- */
@media print{
  .rn-footer,.cursor-blob,.grain,.rn-unified-navbar{display:none!important}
  body{background:#fff!important;color:#000!important;padding-top:0!important}
}