:root{--bg:#edf0ea;--card:#f8faf6;--ink:#13221a;--mute:#5a6b60;--line:#cfd8cd;--acc:#2d5a3d;--tide:#2f7f7a;--hero:#0f2a21;--on:#f2f6ef;--serif:'Instrument Serif',Georgia,serif;--sans:'Hanken Grotesk',system-ui,sans-serif}
@media(prefers-color-scheme:dark){:root{--bg:#0e1612;--card:#16221b;--ink:#e6eee6;--mute:#93a69a;--line:#27382d;--acc:#7fc496;--tide:#6cc3bb;--hero:#07130f}}
*,*::before,*::after{box-sizing:border-box}html{scroll-padding-top:70px;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg);color:var(--ink);font:17px/1.65 var(--sans);overflow-x:hidden}
img,video{max-width:100%}a{color:var(--acc)}h1,h2,h3{font-family:var(--serif);font-weight:400;line-height:1.1;margin:0}
.w{max-width:1120px;margin:0 auto;padding:0 max(22px,env(safe-area-inset-left)) 0 max(22px,env(safe-area-inset-right))}
.skip{position:absolute;left:-999px}.skip:focus{left:8px;top:8px;background:var(--card);padding:8px;z-index:9}
header.top{position:sticky;top:0;z-index:5;padding-top:env(safe-area-inset-top);background:color-mix(in srgb,var(--bg) 92%,transparent);backdrop-filter:blur(8px);border-bottom:1px solid var(--line)}
header.top .w{display:flex;align-items:center;gap:18px;min-height:62px;flex-wrap:wrap}
.brand{font:1.35rem var(--serif);text-decoration:none;color:var(--ink);margin-right:auto}
nav{display:flex;gap:4px;overflow-x:auto;scrollbar-width:none}nav a{padding:6px 12px;border-radius:99px;text-decoration:none;color:var(--mute);font-size:.92rem;white-space:nowrap}
nav a[aria-current=page]{background:var(--acc);color:var(--bg)}
.head{position:relative;background:var(--hero);color:var(--on);overflow:hidden;min-height:clamp(260px,40vh,380px);display:flex;align-items:flex-end}.head.big{min-height:clamp(420px,78vh,760px)}
.head .m{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55}
.head .m.ph{background:radial-gradient(120% 80% at 80% 0%,#2f7f7a66,transparent 60%),linear-gradient(180deg,#0f2a21,#17382b 60%,#0c1f18)}
.head .w{position:relative;padding-top:60px;padding-bottom:44px;width:100%}.head h1{font-size:clamp(2.3rem,7vw,5rem);max-width:15ch;overflow-wrap:anywhere}
.head p{max-width:56ch;color:#d6e3d6;margin:14px 0 0;font-size:clamp(1rem,2.4vw,1.2rem)}
.tag{display:inline-block;font-size:.8rem;border:1px solid #ffffff55;padding:2px 12px;border-radius:99px;margin-bottom:16px}
section{padding:clamp(36px,6vw,64px) 0}section.alt{background:var(--card)}section h2,.gh{font-size:clamp(1.6rem,4vw,2.1rem)}.gh{margin:44px 0 18px}
.about{max-width:68ch;font-size:1.08rem}
.item{background:var(--card);border:1px solid var(--line);border-radius:14px;padding:clamp(16px,3vw,24px);margin-bottom:16px}.item h2{font-size:1.5rem;margin-bottom:6px}
.item p.l{margin:0;color:var(--mute);font-size:.95rem}.item ul{margin:10px 0 0;padding-left:20px}.item li{margin:4px 0}
.pubs .item p.l{color:var(--ink);font-size:1rem;margin:10px 0}.pill{display:inline-block;background:var(--bg);border:1px solid var(--line);border-radius:99px;padding:2px 12px;margin:10px 4px 0 0;font-size:.9rem}
.draft{border-left:4px solid var(--tide)}.badge{font-size:.78rem;background:var(--tide);color:#fff;padding:2px 10px;border-radius:99px;display:inline-block}
.gal{display:grid;grid-template-columns:repeat(auto-fill,minmax(min(100%,210px),1fr));gap:12px;grid-auto-flow:dense}
.gal figure{margin:0;border-radius:12px;overflow:hidden;background:var(--card);border:1px solid var(--line)}.gal img,.gal video{display:block;width:100%;aspect-ratio:4/3;object-fit:cover}
.gal figcaption{padding:8px 12px;font-size:.85rem;color:var(--mute)}.gal figcaption:empty{display:none}
.gal .ph{aspect-ratio:4/3;display:grid;place-items:center;text-align:center;color:var(--mute);font-size:.85rem;background:repeating-linear-gradient(135deg,var(--card),var(--card) 10px,var(--bg) 10px,var(--bg) 20px)}
@media(min-width:700px){.gal figure:nth-child(5n+1){grid-column:span 2}}
.contact p{margin:0 0 14px;overflow-wrap:anywhere}form.c{display:grid;gap:14px;max-width:560px;margin-top:26px}form.c label{display:grid;gap:4px;font-size:.9rem;color:var(--mute)}.hp{display:none}
input,textarea{font:inherit;font-size:16px;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}
button,.btn{font:inherit;cursor:pointer;background:var(--acc);color:var(--bg);border:0;border-radius:99px;padding:10px 22px;text-decoration:none;display:inline-block}.btn.g{background:transparent;color:var(--ink);border:1px solid var(--line)}
footer{border-top:1px solid var(--line);padding:28px 0 calc(28px + env(safe-area-inset-bottom));color:var(--mute);font-size:.9rem}
@media(max-width:640px){header.top .w{gap:2px}nav{width:100%;padding-bottom:8px}.btn{margin-bottom:8px}}

/* ===== v1.2 polish: header, hero, cards, footer ===== */
:focus-visible{outline:2px solid var(--tide);outline-offset:3px}
header.top .w{height:auto;min-height:64px;flex-wrap:nowrap;gap:12px;position:relative}
.brand{font-size:clamp(1.05rem,4.6vw,1.4rem);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;min-width:0}
.panel{display:flex;align-items:center;gap:14px;margin-left:auto}
nav{overflow:visible;width:auto;padding:0}nav a{transition:background .2s,color .2s}nav a:hover{color:var(--ink)}nav a[aria-current=page]:hover{color:var(--bg)}
.sbox input{width:150px}
.mb{display:none;margin-left:auto;width:44px;height:44px;padding:0;background:transparent;border:1px solid var(--line);border-radius:50%;position:relative;color:var(--ink)}
.mb span{position:absolute;left:13px;right:13px;height:2px;background:currentColor;border-radius:2px;transition:transform .25s,top .25s}
.mb span:nth-child(1){top:18px}.mb span:nth-child(2){top:24px}
header.open .mb span:nth-child(1){top:21px;transform:rotate(45deg)}header.open .mb span:nth-child(2){top:21px;transform:rotate(-45deg)}
@media(max-width:900px){.mb{display:block}
.panel{display:none;position:absolute;left:0;right:0;top:100%;margin:0;flex-direction:column;align-items:stretch;gap:12px;background:var(--bg);border-bottom:1px solid var(--line);padding:6px 22px 20px;box-shadow:0 18px 30px -18px #000a;max-height:calc(100vh - 80px);overflow-y:auto}
header.open .panel{display:flex}nav{flex-direction:column;gap:0}
nav a{padding:15px 2px;border-radius:0;border-bottom:1px solid var(--line);font-size:1.05rem;background:none}
nav a[aria-current=page],nav a[aria-current=page]:hover{background:none;color:var(--acc);font-weight:700}
.sbox{margin:0}.sbox input{width:100%;font-size:16px;padding:12px 16px}}
.head::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,#0000 30%,#04100bcc);pointer-events:none}.head .w{z-index:1}
.head .m.ph{background:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='240' height='160' fill='none' stroke='%237fc496' stroke-opacity='.2'%3E%3Cpath d='M0 160C40 100 60 90 70 40M70 160C90 110 120 100 130 30M140 160C150 120 190 110 200 50M200 160C210 130 230 120 240 90'/%3E%3C/svg%3E") repeat-x bottom/240px,radial-gradient(120% 80% at 80% 0%,#2f7f7a77,transparent 60%),linear-gradient(180deg,#0f2a21,#17382b 60%,#0c1f18)}
.head h1{letter-spacing:-.01em}
.item{border-radius:18px;box-shadow:0 14px 30px -26px #000a}
.tl{display:grid;grid-template-columns:190px 1fr;gap:6px 28px}.when{font:italic 1.15rem var(--serif);color:var(--tide);padding-top:4px}
.two{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.hl{display:block;text-decoration:none;color:var(--ink);background:var(--card);border:1px solid var(--line);border-radius:18px;padding:24px;transition:border-color .2s}.hl:hover{border-color:var(--tide)}
.hl small{color:var(--tide);font-weight:700;font-size:.8rem}.hl h3{font-size:1.6rem;margin:6px 0}
.hl p{margin:0;color:var(--mute);display:-webkit-box;-webkit-line-clamp:4;-webkit-box-orient:vertical;overflow:hidden}
.cta{margin-top:22px}.btn{transition:filter .2s}.btn:hover{filter:brightness(1.12)}
footer{padding:48px 0 calc(32px + env(safe-area-inset-bottom));background:var(--hero);color:#b9cbbd;border-top:0}
footer a{color:#e6f1e6}.fg{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:28px}.fg h4{font:1.3rem var(--serif);color:#f2f6ef;margin:0 0 10px}
.fg p{margin:0;max-width:34ch}.fg a{display:block;padding:3px 0;text-decoration:none}.fb{margin-top:32px;padding-top:18px;border-top:1px solid #ffffff22;font-size:.85rem}
@media(max-width:700px){.tl,.two{grid-template-columns:1fr}.fg{grid-template-columns:1fr 1fr}.fg>div:first-child{grid-column:1/-1}}
/* ===== i18n / RTL ===== */
.lang{padding:6px 14px;border:1px solid var(--line);border-radius:99px;text-decoration:none;color:var(--ink);font-size:.9rem;white-space:nowrap;text-align:center}
[dir=rtl] body,[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3,[dir=rtl] h4,[dir=rtl] .brand,[dir=rtl] .when{font-family:'Vazirmatn',system-ui,sans-serif;font-style:normal}
[dir=rtl] h1,[dir=rtl] h2,[dir=rtl] h3{font-weight:700;line-height:1.35;letter-spacing:0}[dir=rtl] body{line-height:1.9}
[dir=rtl] .brand{margin:0}[dir=rtl] .panel,[dir=rtl] .mb{margin-left:0;margin-right:auto}[dir=rtl] .item ul{padding:0 20px 0 0}
[dir=rtl] .draft{border-left:1px solid var(--line);border-right:4px solid var(--tide)}