/* Alvandcode v2 — Dark 3D Glass Theme (RTL) */
/* font: loaded via <link> in <head> (faster than @import) — Vazirmatn 400/700/800/900 */
:root{
  --bg:#06060d; --bg2:#0b0b18; --card:rgba(255,255,255,.055);
  --bd:rgba(255,255,255,.09); --txt:#e8eaf2; --mut:#9aa0b8;
  --p:#6366f1; --v:#a855f7; --c:#22d3ee; --g:#22c55e;
  --r:22px; --nav-h:72px;
  --accent:#6366f1; --accent2:#a855f7;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:'Vazirmatn',system-ui,sans-serif;background:var(--bg);color:var(--txt);overflow-x:hidden;line-height:1.9}
::selection{background:rgba(99,102,241,.45)}
::-webkit-scrollbar{width:10px}::-webkit-scrollbar-track{background:#080810}
::-webkit-scrollbar-thumb{background:linear-gradient(180deg,#6366f1,#a855f7);border-radius:99px}
a{color:inherit;text-decoration:none}
img{max-width:100%}
.ltr{direction:ltr;unicode-bidi:embed}

/* background layers */
#bg3d{position:fixed;inset:0;z-index:-3;width:100%;height:100%}
.bg-grid{position:fixed;inset:0;z-index:-2;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse 90% 70% at 50% 20%,#000 30%,transparent 75%)}
.orb{position:fixed;border-radius:50%;filter:blur(90px);z-index:-2;pointer-events:none;opacity:.5}
.orb1{width:560px;height:560px;background:radial-gradient(circle,#6366f1,transparent 70%);top:-160px;right:-140px;animation:drift 14s ease-in-out infinite}
.orb2{width:480px;height:480px;background:radial-gradient(circle,#a855f7,transparent 70%);bottom:-140px;left:-120px;animation:drift 18s ease-in-out infinite reverse}
.orb3{width:340px;height:340px;background:radial-gradient(circle,#22d3ee,transparent 70%);top:45%;left:35%;opacity:.22;animation:drift 11s ease-in-out infinite}
@keyframes drift{0%,100%{transform:translate(0,0) scale(1)}50%{transform:translate(-30px,26px) scale(1.08)}}

/* cursor glow */
#glow{position:fixed;width:520px;height:520px;border-radius:50%;pointer-events:none;z-index:1;
  background:radial-gradient(circle,rgba(99,102,241,.14),transparent 65%);transform:translate(-50%,-50%);left:50%;top:30%}

/* nav */
header{position:fixed;top:0;right:0;left:0;z-index:50;transition:.35s}
.nav{max-width:1240px;margin:14px auto 0;padding:12px 18px;display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:rgba(10,10,22,.62);backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  border:1px solid var(--bd);border-radius:20px;box-shadow:0 12px 40px rgba(0,0,0,.45)}
header.scrolled .nav{background:rgba(8,8,18,.88);box-shadow:0 12px 44px rgba(99,102,241,.18)}
.logo{display:flex;align-items:center;gap:12px}
.logo-mark{width:44px;height:44px;border-radius:14px;display:flex;align-items:center;justify-content:center;font-weight:900;font-size:1.5rem;color:#fff;
  background:linear-gradient(135deg,#6366f1,#a855f7 60%,#22d3ee);box-shadow:0 6px 24px rgba(99,102,241,.5),inset 0 1px 0 rgba(255,255,255,.4);
  transform-style:preserve-3d;animation:logoFloat 5s ease-in-out infinite}
.logo-img{width:44px;height:44px;object-fit:cover;border-radius:14px;background:#0b1030;box-shadow:0 6px 24px rgba(99,102,241,.5);transform-style:preserve-3d;animation:logoFloat 5s ease-in-out infinite;flex-shrink:0}
@keyframes logoFloat{0%,100%{transform:rotateY(-12deg) rotateX(8deg)}50%{transform:rotateY(14deg) rotateX(-6deg)}}
.logo b{font-size:1.15rem}.logo small{display:block;color:var(--mut);font-size:.65rem;letter-spacing:3px}
.links{display:flex;gap:26px;font-size:.92rem;color:#c6cade}
.links a{position:relative;padding:4px 2px;transition:.25s}
.links a::after{content:'';position:absolute;bottom:-4px;right:0;width:0;height:2px;border-radius:99px;background:linear-gradient(90deg,var(--p),var(--c));transition:.3s}
.links a:hover,.links a.active{color:#fff}.links a:hover::after,.links a.active::after{width:100%}
.btn{display:inline-flex;align-items:center;gap:9px;padding:12px 26px;border-radius:99px;font-weight:800;font-size:.92rem;border:1px solid transparent;cursor:pointer;transition:.3s;position:relative;overflow:hidden}
.btn-p{background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff;box-shadow:0 8px 30px rgba(99,102,241,.45)}
.btn-p::before{content:'';position:absolute;inset:0;background:linear-gradient(90deg,transparent,rgba(255,255,255,.28),transparent);transform:translateX(100%);transition:.6s}
.btn-p:hover{transform:translateY(-3px);box-shadow:0 14px 44px rgba(99,102,241,.6)}.btn-p:hover::before{transform:translateX(-100%)}
.btn-g{border-color:rgba(255,255,255,.18);background:rgba(255,255,255,.05);backdrop-filter:blur(8px)}
.btn-g:hover{border-color:rgba(255,255,255,.4);transform:translateY(-3px)}
.burger{display:none;background:none;border:1px solid var(--bd);color:#fff;border-radius:12px;padding:9px 13px;font-size:1.1rem;cursor:pointer}

/* layout */
.wrap{max-width:1240px;margin:0 auto;padding:0 22px}
section{padding:96px 0;position:relative}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:.8rem;font-weight:700;color:#c7d2fe;background:rgba(99,102,241,.12);border:1px solid rgba(99,102,241,.3);padding:7px 18px;border-radius:99px;margin-bottom:18px}
.eyebrow .dot{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 0 rgba(52,211,153,.6);animation:ping 1.8s infinite}
@keyframes ping{50%{box-shadow:0 0 0 9px rgba(52,211,153,0)}}
h1.hero-t{font-size:clamp(2.6rem,6vw,4.6rem);font-weight:900;line-height:1.25}
.grad{background:linear-gradient(120deg,#a5b4fc,#e879f9 45%,#22d3ee);-webkit-background-clip:text;background-clip:text;color:transparent}
.sub{color:var(--mut);font-size:1.08rem;max-width:640px}
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;min-height:100vh;padding-top:calc(var(--nav-h) + 46px)}
.hero-cta{display:flex;gap:13px;flex-wrap:wrap;margin-top:26px}
.hero-stats{display:flex;gap:12px;flex-wrap:wrap;margin-top:30px}
.stat{background:rgba(255,255,255,.05);border:1px solid var(--bd);border-radius:18px;padding:13px 22px;min-width:132px;text-align:center;backdrop-filter:blur(10px)}
.stat b{font-size:1.5rem;display:block;background:linear-gradient(180deg,#fff,#a5b4fc);-webkit-background-clip:text;background-clip:text;color:transparent}
.stat span{font-size:.78rem;color:var(--mut)}

/* 3D stage */
.stage{perspective:1200px;display:flex;justify-content:center}
.cube-wrap{position:relative;width:min(420px,84vw);height:min(420px,84vw);transform-style:preserve-3d;animation:stageFloat 7s ease-in-out infinite}
@keyframes stageFloat{0%,100%{transform:translateY(0) rotateX(4deg)}50%{transform:translateY(-16px) rotateX(-3deg)}}
.cube-card{position:absolute;inset:0;border-radius:34px;background:linear-gradient(160deg,rgba(30,27,75,.92),rgba(12,12,28,.94));border:1px solid rgba(255,255,255,.14);
  box-shadow:0 40px 100px rgba(99,102,241,.35),inset 0 1px 0 rgba(255,255,255,.2);overflow:hidden;transform:rotateY(-10deg) rotateX(6deg)}
.cube-card .term{background:rgba(0,0,0,.45);border-bottom:1px solid rgba(255,255,255,.08);padding:11px 16px;display:flex;gap:7px;align-items:center;font-size:.75rem;color:var(--mut)}
.td{width:11px;height:11px;border-radius:50%}.td.r{background:#f87171}.td.y{background:#fbbf24}.td.g{background:#34d399}
.term-body{padding:20px;font-family:Consolas,monospace;font-size:.82rem;line-height:2;direction:ltr;text-align:left}
.t-g{color:#34d399}.t-b{color:#7dd3fc}.t-p{color:#e879f9}.t-y{color:#fbbf24}.t-m{color:#9aa0b8}
.caret{display:inline-block;width:9px;height:17px;background:#a5b4fc;vertical-align:middle;animation:blink 1s steps(1) infinite}
@keyframes blink{50%{opacity:0}}
.float-chip{position:absolute;z-index:5;background:rgba(14,14,28,.85);border:1px solid var(--bd);backdrop-filter:blur(12px);border-radius:16px;padding:10px 16px;font-size:.8rem;font-weight:700;box-shadow:0 16px 40px rgba(0,0,0,.5);display:flex;gap:9px;align-items:center;animation:chipF 5s ease-in-out infinite}
.chip1{top:8%;right:-24px}.chip2{bottom:14%;right:-14px;animation-delay:-1.6s}.chip3{bottom:-26px;left:6%;animation-delay:-3s}
@keyframes chipF{0%,100%{transform:translateY(0) translateZ(90px)}50%{transform:translateY(-12px) translateZ(90px)}}
.scroll-hint{position:absolute;bottom:22px;right:50%;transform:translateX(50%);color:var(--mut);font-size:.75rem;display:flex;flex-direction:column;align-items:center;gap:8px}
.mouse{width:24px;height:38px;border:2px solid rgba(255,255,255,.3);border-radius:14px;position:relative}
.mouse::after{content:'';position:absolute;top:7px;right:50%;transform:translateX(50%);width:4px;height:8px;border-radius:99px;background:#a5b4fc;animation:wheel 1.6s infinite}
@keyframes wheel{50%{transform:translate(50%,10px);opacity:0}}

/* section head */
.sec-head{display:flex;justify-content:space-between;align-items:flex-end;gap:18px;margin-bottom:44px;flex-wrap:wrap}
.sec-head h2{font-size:clamp(1.7rem,3.6vw,2.7rem);font-weight:900}
.sec-head p{color:var(--mut);max-width:560px}
.more{color:#a5b4fc;font-weight:700;display:inline-flex;gap:8px;align-items:center;transition:.25s}
.more:hover{gap:13px;color:#fff}

/* project cards */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.pcard{position:relative;border-radius:24px;background:linear-gradient(180deg,rgba(255,255,255,.07),rgba(255,255,255,.02));border:1px solid var(--bd);
  overflow:hidden;transition:transform .35s,box-shadow .35s,border-color .35s;transform-style:preserve-3d;will-change:transform}
.pcard:hover{border-color:color-mix(in srgb,var(--accent) 55%,transparent);box-shadow:0 30px 70px -18px var(--accent)}
.pcard-top{height:190px;position:relative;display:flex;align-items:center;justify-content:center;overflow:hidden;background:radial-gradient(ellipse at 50% 120%,var(--accent),transparent 65%),linear-gradient(160deg,#14142b,#0a0a18)}
.pcard-top::before{content:'';position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);background-size:26px 26px;mask-image:radial-gradient(circle at 50% 50%,#000,transparent 80%)}
.p-emoji{font-size:4.2rem;filter:drop-shadow(0 14px 26px rgba(0,0,0,.5));transform:translateZ(50px);transition:.35s}
.pcard:hover .p-emoji{transform:translateZ(70px) scale(1.14) rotate(-6deg)}
.p-lang{position:absolute;top:14px;right:14px;background:rgba(0,0,0,.55);border:1px solid rgba(255,255,255,.14);font-size:.7rem;padding:5px 13px;border-radius:99px;backdrop-filter:blur(6px)}
.p-stars{position:absolute;top:14px;left:14px;background:rgba(0,0,0,.55);border:1px solid rgba(255,255,255,.14);font-size:.72rem;padding:5px 12px;border-radius:99px}
.p-body{padding:22px 22px 20px}
.p-body h3{font-size:1.12rem;margin-bottom:6px}
.p-body h3 small{color:var(--mut);font-weight:400;font-size:.75rem}
.p-body p{color:var(--mut);font-size:.88rem;min-height:52px}
.p-tags{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 16px}
.tag{font-size:.7rem;background:rgba(255,255,255,.07);border:1px solid var(--bd);padding:4px 12px;border-radius:99px;color:#c9cdf0}
.p-foot{display:flex;justify-content:space-between;align-items:center;border-top:1px dashed rgba(255,255,255,.1);padding-top:15px}
.open{font-weight:800;font-size:.86rem;color:#c7d2fe;display:inline-flex;gap:7px;align-items:center}
.pcard:hover .open{color:#fff}
.gh{font-size:.8rem;color:var(--mut)}.gh:hover{color:#fff}

/* marquee */
.marquee{overflow:hidden;border-top:1px solid var(--bd);border-bottom:1px solid var(--bd);background:rgba(255,255,255,.02);padding:15px 0;white-space:nowrap;direction:ltr}
.marquee div{display:inline-block;animation:mq 26s linear infinite;font-weight:700;color:#8b90ad;font-size:.92rem;will-change:transform}
@keyframes mq{to{transform:translateX(-50%)}}

/* accessibility: visible keyboard focus + reduced motion */
:focus-visible{outline:2px solid var(--p);outline-offset:3px}
@media (prefers-reduced-motion:reduce){
*,*::before,*::after{animation-duration:.01ms!important;animation-iteration-count:1!important;transition-duration:.01ms!important;scroll-behavior:auto!important}
#bg3d{display:none}
}

/* about */
.about{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:start}
.about-card{background:var(--card);border:1px solid var(--bd);border-radius:26px;padding:34px;position:sticky;top:110px;overflow:hidden}
.about-card::after{content:'A';position:absolute;left:-18px;bottom:-70px;font-size:13rem;font-weight:900;opacity:.05;line-height:1}
.timeline{display:flex;flex-direction:column;gap:16px}
.tl{background:rgba(255,255,255,.035);border:1px solid var(--bd);border-radius:18px;padding:18px 20px;transition:.3s}
.tl:hover{transform:translateX(-6px);border-color:rgba(99,102,241,.4)}
.tl b{display:block;margin-bottom:4px}.tl span{color:var(--mut);font-size:.88rem}

/* skills */
.skills{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.skill{background:var(--card);border:1px solid var(--bd);border-radius:20px;padding:26px 18px;text-align:center;transition:.3s;position:relative;overflow:hidden}
.skill:hover{transform:translateY(-8px) scale(1.02);border-color:rgba(34,211,238,.4);box-shadow:0 24px 50px -18px rgba(34,211,238,.35)}
.skill .ic{font-size:2.4rem;margin-bottom:10px}
.skill b{display:block}.skill small{color:var(--mut);font-size:.75rem}
.bar{height:6px;background:rgba(255,255,255,.08);border-radius:99px;margin-top:12px;overflow:hidden}
.bar i{display:block;height:100%;border-radius:99px;background:linear-gradient(90deg,var(--p),var(--c));width:0;transition:width 1.2s ease}

/* contact */
.contact-box{background:linear-gradient(160deg,rgba(99,102,241,.14),rgba(168,85,247,.08));border:1px solid rgba(99,102,241,.28);border-radius:30px;padding:54px 30px;text-align:center;position:relative;overflow:hidden}
.contact-box::before{content:'';position:absolute;inset:-40%;background:conic-gradient(from 0deg,transparent,rgba(99,102,241,.18),transparent 30%);animation:spin 7s linear infinite}
@keyframes spin{to{transform:rotate(360deg)}}
.contact-in{position:relative}
.c-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;max-width:760px;margin:34px auto 0}
.c-card{background:rgba(8,8,18,.7);border:1px solid var(--bd);border-radius:20px;padding:26px 16px;transition:.3s;backdrop-filter:blur(10px)}
.c-card:hover{transform:translateY(-6px);border-color:rgba(255,255,255,.3)}
.c-card .ic{font-size:2rem;margin-bottom:8px}

/* footer */
footer{border-top:1px solid var(--bd);padding:44px 0 30px;background:rgba(5,5,12,.8)}
.legal{margin-top:26px;border-top:1px solid var(--bd);padding-top:20px;text-align:center}
.legal-copy{font-weight:800;font-size:.95rem}
.legal-warn{color:var(--mut);font-size:.8rem;margin-top:8px;display:flex;align-items:center;justify-content:center;gap:8px}
.legal-warn::before{content:'⚖️'}
.f-row{display:flex;justify-content:space-between;align-items:center;gap:20px;flex-wrap:wrap}
.f-links{display:flex;gap:18px;color:var(--mut);font-size:.85rem}

/* reveal */
.reveal{opacity:0;transform:translateY(34px);transition:opacity .7s ease,transform .7s cubic-bezier(.2,.7,.3,1)}
.reveal.in{opacity:1;transform:none}

/* ===== project detail pages ===== */
.proj-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;padding-top:calc(var(--nav-h) + 60px);min-height:72vh}
.proj-icon{width:150px;height:150px;border-radius:36px;display:flex;align-items:center;justify-content:center;font-size:4.4rem;
  background:radial-gradient(circle at 30% 25%,color-mix(in srgb,var(--accent) 70%,#fff 10%),color-mix(in srgb,var(--accent2) 60%,#000 30%));
  box-shadow:0 30px 80px -18px var(--accent),inset 0 2px 0 rgba(255,255,255,.4);transform:rotate(-6deg);animation:stageFloat 6s ease-in-out infinite}
.meta{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0}
.pill{font-size:.75rem;padding:6px 15px;border-radius:99px;background:rgba(255,255,255,.07);border:1px solid var(--bd)}
.pill.hot{background:linear-gradient(135deg,#6366f1,#a855f7);border:none;font-weight:800}
.shot{background:linear-gradient(170deg,#15152e,#0a0a18);border:1px solid var(--bd);border-radius:26px;overflow:hidden;box-shadow:0 30px 80px rgba(0,0,0,.5)}
.shot-bar{display:flex;gap:7px;padding:13px 17px;border-bottom:1px solid var(--bd);background:rgba(0,0,0,.4);align-items:center}
.shot-body{padding:26px;min-height:300px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:26px}
.feat{background:rgba(255,255,255,.04);border:1px solid var(--bd);border-radius:18px;padding:20px;transition:.3s}
.feat:hover{transform:translateY(-6px);border-color:var(--accent)}
.feat .e{font-size:1.7rem}
.code{background:#0a0a16;border:1px solid rgba(255,255,255,.1);border-radius:16px;padding:18px;direction:ltr;text-align:left;font-family:Consolas,monospace;font-size:.82rem;line-height:1.9;overflow-x:auto;margin:14px 0;position:relative}
.code .cp{position:absolute;top:10px;right:10px;background:rgba(255,255,255,.08);border:1px solid var(--bd);color:#fff;border-radius:10px;padding:4px 12px;font-size:.7rem;cursor:pointer;font-family:'Vazirmatn'}
.code .cp:hover{background:rgba(99,102,241,.4)}
.k{color:#e879f9}.s{color:#86efac}.cmt{color:#5b6079}.f{color:#7dd3fc}
.steps{counter-reset:st;display:flex;flex-direction:column;gap:14px;margin-top:18px}
.step{background:rgba(255,255,255,.035);border:1px solid var(--bd);border-radius:16px;padding:16px 18px 16px 18px;position:relative;padding-right:64px}
.step::before{counter-increment:st;content:counter(st);position:absolute;right:16px;top:16px;width:32px;height:32px;border-radius:11px;display:flex;align-items:center;justify-content:center;font-weight:900;background:linear-gradient(135deg,var(--accent),var(--accent2))}
.nextprev{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:50px}
.np{background:var(--card);border:1px solid var(--bd);border-radius:18px;padding:20px 22px;transition:.3s}
.np:hover{border-color:var(--accent);transform:translateY(-4px)}
.np small{color:var(--mut);font-size:.75rem}.np b{display:block;font-size:1.02rem}
.back{display:inline-flex;align-items:center;gap:8px;color:var(--mut);font-size:.86rem;margin-bottom:6px}.back:hover{color:#fff}

/* responsive */
@media(max-width:1020px){.grid3{grid-template-columns:repeat(2,1fr)}.skills{grid-template-columns:repeat(3,1fr)}.feat-grid{grid-template-columns:repeat(2,1fr)}.hero,.proj-hero,.about{grid-template-columns:1fr}.about-card{position:static}.scroll-hint{display:none}}
@media(max-width:680px){.links{display:none}.burger{display:block}.grid3,.skills,.c-grid,.feat-grid,.nextprev{grid-template-columns:1fr}section{padding:66px 0}.nav{margin:10px 10px 0}.chip1{right:0}.chip2{right:6px}.shot-body{padding:18px}.shot-body>div[style*="repeat(3,1fr)"]{grid-template-columns:repeat(2,1fr)!important}}
@media(min-width:681px){.mobile-menu{display:none!important}}
.mobile-menu{display:none;position:fixed;top:86px;right:14px;left:14px;z-index:49;background:rgba(10,10,24,.96);border:1px solid var(--bd);border-radius:18px;padding:14px;flex-direction:column;gap:4px;backdrop-filter:blur(16px)}
.mobile-menu a{padding:12px 16px;border-radius:12px}.mobile-menu a:hover{background:rgba(255,255,255,.06)}

/* ===== solid surfaces: keep the 3D background behind the content ===== */
#glow{z-index:-1}
.pcard{background:linear-gradient(180deg,#15152c,#0b0b18);box-shadow:0 18px 50px rgba(0,0,0,.45)}
.feat,.step,.np,.tl,.skill,.stat,.c-card{background:linear-gradient(180deg,#131324,#0c0c1a)}
.about-card{background:linear-gradient(180deg,#14142a,#0b0b18)}
.marquee{background:rgba(8,8,16,.94)}
.contact-box{background:linear-gradient(160deg,rgba(22,22,46,.97),rgba(30,20,52,.95))}

/* skip-to-content link (screen readers + keyboard) */
.skip{position:fixed;top:-70px;right:16px;z-index:300;background:linear-gradient(135deg,#6366f1,#a855f7);color:#fff;font-weight:800;font-size:.85rem;padding:10px 20px;border-radius:12px;transition:top .25s;text-decoration:none}
.skip:focus{top:12px;color:#fff}
html[dir="ltr"] .skip{right:auto;left:16px}
