@font-face{font-family:"Vazirmatn";src:local("Vazirmatn"),local("Vazirmatn Regular");font-weight:100 900;font-display:swap}

:root{
  --deep:#0A2624;
  --deep-2:#0F3532;
  --forest:#1F4D3A;
  --spring:#3DB7A8;
  --gold:#C9A24B;
  --gold-soft:#E4CB8C;
  --lime:#EEE7D3;
  --mist:#DCEBE4;
  --ink:#12302C;
  --ink-soft:#40605A;
  --font:"Vazirmatn","Vazir","IRANSansX","IRANSans","Sahel","Samim","Segoe UI",Tahoma,"DejaVu Sans",sans-serif;
  --pad:clamp(20px,4vw,56px);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
h1,h2,h3{text-wrap:balance}
body{font-family:var(--font);background:var(--lime);color:var(--ink);line-height:1.9;font-size:1rem;overflow-x:hidden}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
img{max-width:100%;display:block}
:focus-visible{outline:3px solid var(--gold);outline-offset:3px;border-radius:6px}
section[id]{scroll-margin-top:72px}
.wrap{max-width:1240px;margin-inline:auto;padding-inline:var(--pad)}
main{display:block}

/* ───────── هدر ───────── */
.nav{position:fixed;inset-inline:0;top:0;z-index:60;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:10px var(--pad);color:var(--lime);background:rgba(10,38,36,.88);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:0 1px 0 rgba(238,231,211,.12);transition:background .35s,padding .35s}
.nav.top{background:transparent;box-shadow:none}
.nav.home.top{background:rgba(10,38,36,.0)}
.brand{display:flex;align-items:center;gap:12px;font-weight:800;font-size:1rem;min-width:0}
.brand img{width:44px;height:auto;flex:none}
.brand span{white-space:nowrap}
.nav-links{display:flex;gap:26px;list-style:none;font-weight:500;font-size:.95rem}
.nav-links a{padding:6px 2px;border-bottom:2px solid transparent;transition:border-color .2s}
.nav-links a:hover,.nav-links a[aria-current="page"]{border-color:var(--gold)}
.nav-right{display:flex;align-items:center;gap:10px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:.75rem 1.5rem;border-radius:10px;font-weight:700;font-size:1rem;transition:transform .2s,background .2s,box-shadow .2s;white-space:nowrap}
.btn:hover{transform:translateY(-2px)}
.btn.gold{background:var(--gold);color:var(--deep);box-shadow:0 8px 24px rgba(201,162,75,.28)}
.btn.gold:hover{background:var(--gold-soft)}
.btn.ghost{border:1.5px solid rgba(238,231,211,.5);color:var(--lime)}
.btn.ghost:hover{background:rgba(238,231,211,.1)}
.btn.small{padding:.5rem 1.1rem;font-size:.9rem}
.burger{display:none;width:42px;height:42px;border-radius:10px;border:1.5px solid rgba(238,231,211,.35);align-items:center;justify-content:center;flex:none}
.burger svg{width:20px;height:20px}
.mnav{display:none;position:fixed;inset:64px 0 auto 0;z-index:59;background:rgba(10,38,36,.98);backdrop-filter:blur(10px);padding:10px var(--pad) 22px;border-bottom:1px solid rgba(238,231,211,.14)}
.mnav.open{display:block}
.mnav ul{list-style:none;display:grid;gap:2px}
.mnav a{display:block;padding:13px 4px;color:var(--lime);font-weight:600;border-bottom:1px solid rgba(238,231,211,.1)}
.mnav a[aria-current="page"]{color:var(--gold)}
@media (max-width:960px){
  .nav-links{display:none}
  .burger{display:flex}
}

/* ───────── قهرمان صفحات داخلی ───────── */
.page-hero{position:relative;padding:150px var(--pad) 64px;background:radial-gradient(900px 500px at 20% 0%,#164943 0%,var(--deep) 55%,#071A19 100%);color:var(--lime);overflow:hidden}
.page-hero .wrap{position:relative;z-index:2}
.page-hero svg.motif{position:absolute;inset-inline-end:-6%;top:-10%;width:56%;max-width:560px;height:auto;color:rgba(238,231,211,.07);z-index:1}
.crumb{display:flex;gap:8px;align-items:center;font-size:.86rem;color:rgba(238,231,211,.62);flex-wrap:wrap}
.crumb a:hover{color:var(--gold-soft)}
.crumb span{opacity:.6}
.page-hero h1{margin-top:16px;font-size:clamp(1.7rem,3.6vw,2.7rem);font-weight:800;line-height:1.45;max-width:34rem}
.page-hero p.lead{margin-top:14px;font-size:1.05rem;color:rgba(238,231,211,.82);max-width:36rem}
.tag{display:inline-flex;align-items:center;gap:8px;padding:.4rem .9rem;border-radius:999px;background:rgba(201,162,75,.16);border:1px solid rgba(201,162,75,.5);color:var(--gold-soft);font-size:.82rem;font-weight:700;margin-bottom:14px}
.tag.soon{background:rgba(61,183,168,.14);border-color:rgba(61,183,168,.5);color:#9FE6DA}

/* ───────── محتوای مقاله ───────── */
.article{padding:clamp(48px,7vw,88px) 0}
.article .grid{display:grid;grid-template-columns:minmax(0,7fr) minmax(0,4fr);gap:clamp(28px,5vw,64px);align-items:start}
.prose h2{font-size:clamp(1.25rem,2.1vw,1.6rem);font-weight:800;color:var(--deep);margin:2.1em 0 .7em}
.prose h2:first-child{margin-top:0}
.prose p{color:var(--ink-soft);margin-bottom:1em;max-width:52ch}
.prose ul{list-style:none;display:grid;gap:10px;margin:.4em 0 1.4em}
.prose ul li{position:relative;padding-inline-start:26px;color:var(--ink-soft)}
.prose ul li::before{content:"";position:absolute;inline-size:8px;block-size:8px;border-radius:2px;background:var(--forest);inset-inline-start:0;top:.55em}
aside.rail{position:sticky;top:96px;display:grid;gap:18px}
.railcard{background:#fff;border:1px solid rgba(18,48,44,.12);border-radius:16px;padding:22px}
.railcard h3{font-size:.85rem;letter-spacing:.02em;color:var(--ink-soft);margin-bottom:12px;font-weight:700}
.railcard ul{list-style:none;display:grid;gap:9px}
.railcard a{display:block;padding:9px 12px;border-radius:9px;background:rgba(31,77,58,.06);font-size:.92rem;font-weight:600;color:var(--deep)}
.railcard a:hover{background:rgba(31,77,58,.13)}
.railcard a.current{background:var(--forest);color:#fff}
.railcta{background:var(--deep);color:var(--lime);border-radius:16px;padding:24px}
.railcta h3{color:var(--lime);opacity:.8}
.railcta p{color:rgba(238,231,211,.78);font-size:.92rem;margin:8px 0 16px}

/* ───────── شبکهٔ کارت خدمات ───────── */
.svc3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;margin-top:32px}
.svc3 a.card{display:block;padding:24px;border-radius:16px;background:#fff;border:1px solid rgba(18,48,44,.1);transition:transform .25s,box-shadow .25s,border-color .25s}
.svc3 a.card:hover{transform:translateY(-4px);box-shadow:0 20px 40px rgba(18,48,44,.12);border-color:var(--gold)}
.svc3 .ic{width:46px;height:46px;border-radius:12px;background:rgba(31,77,58,.09);display:grid;place-items:center;margin-bottom:16px}
.svc3 .ic svg{width:24px;height:24px;color:var(--forest)}
.svc3 h3{font-size:1.08rem;font-weight:800;color:var(--deep);line-height:1.6}
.svc3 p{margin-top:6px;color:var(--ink-soft);font-size:.92rem}
.svc3 .go{margin-top:14px;font-size:.85rem;font-weight:700;color:var(--forest);display:flex;align-items:center;gap:6px}
@media (max-width:960px){.svc3{grid-template-columns:1fr 1fr}}
@media (max-width:620px){.svc3{grid-template-columns:1fr}}

/* ───────── نوار اناشید ───────── */
.anashid-band{margin:8px 0 0;padding:clamp(32px,5vw,52px) 0;background:linear-gradient(120deg,#0F3532,#153f3a 55%,#0F3532);color:var(--lime);position:relative;overflow:hidden}
.anashid-band .wrap{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center}
.anashid-band h2{font-size:clamp(1.3rem,2.4vw,1.9rem);font-weight:800}
.anashid-band p{margin-top:8px;color:rgba(238,231,211,.75);max-width:44rem}
@media (max-width:760px){.anashid-band .wrap{grid-template-columns:1fr}}

/* ───────── تماس با ما ───────── */
.contact{padding:clamp(64px,9vw,110px) 0 40px;background:var(--deep);color:var(--lime);position:relative;overflow:hidden}
.contact::before{content:"";position:absolute;inset-inline-start:-10%;top:-30%;width:60%;aspect-ratio:1;border-radius:50%;background:radial-gradient(closest-side,rgba(61,183,168,.16),transparent);pointer-events:none}
.contact .sec-head h2{color:var(--lime)}
.contact .sec-head p{color:rgba(238,231,211,.72)}
.sec-head{max-width:40rem}
.sec-head h2{font-size:clamp(1.6rem,3vw,2.5rem);line-height:1.45;font-weight:800;color:var(--deep)}
.sec-head p{margin-top:12px;color:var(--ink-soft);font-size:1.05rem}
.cgrid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 48px;margin-top:36px;position:relative}
.crow{display:grid;grid-template-columns:auto 1fr;gap:2px 18px;padding:20px 0;border-top:1px solid rgba(238,231,211,.16);align-items:start}
.crow svg{width:26px;height:26px;color:var(--gold);grid-row:span 2;margin-top:4px}
.crow dt{font-size:.88rem;color:rgba(238,231,211,.62)}
.crow dd{font-size:1.15rem;font-weight:700;word-break:break-word}
.crow dd a{border-bottom:1.5px solid rgba(201,162,75,.6)}
.crow dd a:hover{color:var(--gold-soft)}
.crow dd.ltr{direction:ltr;text-align:right;unicode-bidi:plaintext}
@media (max-width:760px){.cgrid{grid-template-columns:1fr}}

footer.site{background:var(--deep-2);color:rgba(238,231,211,.7);padding:44px 0 22px}
footer.site .fgrid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:28px}
footer.site h4{color:var(--lime);font-size:.9rem;margin-bottom:12px}
footer.site ul{list-style:none;display:grid;gap:8px;font-size:.9rem}
footer.site ul a:hover{color:var(--gold-soft)}
footer.site .fbrand{display:flex;align-items:center;gap:10px;margin-bottom:10px}
footer.site .fbrand img{width:38px}
footer.site .fbrand strong{color:var(--lime)}
footer.site p.desc{font-size:.88rem;max-width:30ch}
.fbottom{margin-top:32px;padding-top:18px;border-top:1px solid rgba(238,231,211,.12);display:flex;flex-wrap:wrap;gap:8px 24px;justify-content:space-between;font-size:.82rem}
@media (max-width:880px){footer.site .fgrid{grid-template-columns:1fr 1fr}}
@media (max-width:520px){footer.site .fgrid{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition-duration:.01ms !important}}

/* ───────── صفحهٔ اصلی: قهرمان سه‌بعدی ───────── */
.hero{position:relative;min-height:max(680px,100svh);max-height:980px;background:radial-gradient(1200px 720px at 30% 55%,#134540 0%,var(--deep) 62%,#071A19 100%);color:var(--lime);overflow:hidden;touch-action:pan-y;cursor:grab;user-select:none;-webkit-user-select:none}
.hero.drag{cursor:grabbing}
#terrain{position:absolute;inset:0;width:100%;height:100%;display:block}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background:linear-gradient(270deg,rgba(10,38,36,.94) 0%,rgba(10,38,36,.78) 30%,rgba(10,38,36,0) 62%)}
.hero-inner{position:relative;z-index:2;max-width:1240px;margin-inline:auto;padding:110px var(--pad) 90px;min-height:inherit;display:flex;align-items:center;pointer-events:none}
.hero-copy{width:min(36rem,100%);pointer-events:none}
.hero-copy a{pointer-events:auto}
.hero h1{font-size:clamp(1.9rem,3.9vw,3.25rem);line-height:1.35;font-weight:800;letter-spacing:0}
.hero p.lead{margin-top:20px;font-size:clamp(1rem,1.5vw,1.2rem);color:rgba(238,231,211,.86);max-width:32rem}
.cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px}
.hero-foot{position:absolute;z-index:2;inset-inline:var(--pad);bottom:58px;display:flex;flex-wrap:wrap;gap:10px 28px;align-items:center;justify-content:flex-start;font-size:.85rem;color:rgba(238,231,211,.78);pointer-events:none;direction:ltr;flex-direction:row}
.hero-foot *{direction:rtl}
.legend{display:flex;gap:20px;list-style:none;flex-wrap:wrap}
.legend li{display:flex;align-items:center;gap:8px}
.legend i{display:block;width:22px;height:3px;border-radius:2px}
.legend .l1{background:var(--spring);box-shadow:0 0 10px var(--spring)}
.legend .l2{background:var(--gold);box-shadow:0 0 10px var(--gold)}
.hint{display:flex;align-items:center;gap:8px;opacity:.85}
.ridge{position:absolute;z-index:3;inset-inline:0;bottom:-1px;width:100%;height:56px;display:block;fill:var(--lime)}

/* ───────── خدمات: برش سه‌لایهٔ زمین ───────── */
.services{padding:clamp(64px,9vw,120px) 0;background:var(--lime)}
.svc-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(24px,5vw,72px);align-items:center;margin-top:clamp(28px,4vw,48px)}
.tabs{list-style:none;display:grid;gap:10px}
.tab{width:100%;text-align:start;display:grid;grid-template-columns:auto 1fr;gap:6px 16px;align-items:start;padding:18px 20px;border-radius:14px;border:1.5px solid rgba(18,48,44,.16);background:rgba(255,255,255,.4);transition:background .3s,border-color .3s,box-shadow .3s}
.tab:hover{border-color:rgba(18,48,44,.4)}
.tab .sw{width:16px;height:16px;border-radius:5px;margin-top:8px;background:var(--c)}
.tab strong{font-size:1.15rem;font-weight:800;color:var(--deep);line-height:1.7}
.tab .d{grid-column:2;color:var(--ink-soft);font-size:.98rem;display:none}
.tab[aria-pressed="true"]{background:#fff;border-color:var(--gold);box-shadow:0 14px 40px rgba(18,48,44,.12)}
.tab[aria-pressed="true"] .d{display:block}
.stage{--sw:300px;--sd:210px;--t:18px;perspective:1500px;height:clamp(360px,36vw,470px);display:grid;place-items:center;overflow:visible}
.stack{position:relative;width:var(--sw);height:var(--sd);transform-style:preserve-3d;transform:rotateX(58deg) rotateZ(calc(38deg + var(--rz,0deg)));transition:transform .4s ease-out;direction:ltr}
.slab{position:absolute;inset:0;transform-style:preserve-3d;transform:translateZ(calc(var(--z) + var(--lift,0px)));transition:transform .7s cubic-bezier(.2,.8,.2,1);background:var(--c);border-radius:4px;cursor:pointer}
.slab::before{content:"";position:absolute;left:0;top:100%;width:100%;height:var(--t);background:var(--cd);transform-origin:top;transform:rotateX(-90deg)}
.slab::after{content:"";position:absolute;left:100%;top:0;width:var(--t);height:100%;background:var(--cd);filter:brightness(.78);transform-origin:left;transform:rotateY(90deg)}
.slab svg{position:absolute;inset:0;width:100%;height:100%;border-radius:4px;transition:filter .4s}
.slab.on{--lift:46px}
.slab.on svg{box-shadow:0 0 0 3px var(--gold);filter:brightness(1.14) saturate(1.1)}
.slab[data-i="0"]{--z:150px;--c:#2A5E45;--cd:#173B2B}
.slab[data-i="1"]{--z:75px;--c:#7C6C47;--cd:#4A3F29}
.slab[data-i="2"]{--z:0px;--c:#1E7C7D;--cd:#0F4A4C}
.shadowplate{position:absolute;inset:-6% -6%;transform:translateZ(-40px);background:radial-gradient(closest-side,rgba(18,48,44,.28),transparent);pointer-events:none}

/* ───────── زمینه‌های دیگر: حلقهٔ سه‌بعدی ───────── */
.fields{position:relative;padding:clamp(64px,9vw,120px) 0;background:linear-gradient(180deg,var(--deep) 0%,var(--deep-2) 100%);color:var(--lime);overflow:hidden}
.fields .sec-head h2{color:var(--lime)}
.fields .sec-head p{color:rgba(238,231,211,.72)}
.ringwrap{perspective:1400px;height:clamp(280px,32vw,340px);margin-top:28px;display:grid;place-items:center;cursor:grab;touch-action:pan-y}
.ring{--dx:290px;position:relative;width:270px;height:204px;transform-style:preserve-3d;direction:rtl}
.panel{position:absolute;inset:0;padding:22px;border-radius:16px;background:linear-gradient(160deg,#1B4A45,#113632);border:1px solid rgba(238,231,211,.22);box-shadow:0 30px 60px rgba(0,0,0,.28);opacity:calc(1 - var(--ad,0)*.42);z-index:calc(10 - var(--ad,0));transition:transform 1s cubic-bezier(.2,.8,.2,1),opacity .8s,border-color .8s;transform:translateX(calc(var(--d,0)*var(--dx)*-1)) translateZ(calc(var(--ad,0)*-150px)) rotateY(calc(var(--d,0)*34deg))}
.panel.on{opacity:1;border-color:var(--gold)}
.panel svg{width:34px;height:34px;color:var(--gold);margin-bottom:10px}
.panel h3{font-size:1.08rem;line-height:1.6;font-weight:800}
.panel p{margin-top:6px;font-size:.9rem;line-height:1.8;color:rgba(238,231,211,.78)}
.panel a.more{display:inline-block;margin-top:10px;font-size:.82rem;font-weight:700;color:var(--gold-soft)}
.ringctl{display:flex;justify-content:center;gap:14px;margin-top:22px}
.ringctl button{width:46px;height:46px;border-radius:50%;border:1.5px solid rgba(238,231,211,.4);display:grid;place-items:center;transition:background .2s,border-color .2s}
.ringctl button:hover{background:rgba(238,231,211,.12);border-color:var(--gold)}
.ringctl svg{width:20px;height:20px}
.ringnow{margin-top:14px;text-align:center;font-size:.9rem;color:rgba(238,231,211,.7);min-height:1.9em}

/* ───────── هدف‌ها ───────── */
.mission{padding:clamp(64px,9vw,120px) 0;background:var(--lime);position:relative}
.mission-grid{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,6fr);gap:clamp(28px,6vw,88px);align-items:start}
.aims{list-style:none}
.aims li{display:grid;grid-template-columns:52px 1fr;gap:4px 18px;padding:22px 0;border-top:1.5px solid rgba(18,48,44,.18)}
.aims li:last-child{border-bottom:1.5px solid rgba(18,48,44,.18)}
.aims svg{width:44px;height:44px;grid-row:span 2;color:var(--forest)}
.aims h3{font-size:1.25rem;font-weight:800;color:var(--deep);line-height:1.6}
.aims p{color:var(--ink-soft)}
.tilt{transform-style:preserve-3d;transition:transform .25s ease-out}

@media (max-width:960px){
  .svc-grid,.mission-grid{grid-template-columns:1fr}
  .stage{--sw:250px;--sd:176px;--t:15px;height:400px}
  .slab[data-i="0"]{--z:120px}.slab[data-i="1"]{--z:60px}
  .article .grid{grid-template-columns:1fr}
  aside.rail{position:static}
}
@media (max-width:880px){
  .hero{min-height:max(800px,100svh)}
  .hero::before{background:linear-gradient(180deg,rgba(10,38,36,.94) 0%,rgba(10,38,36,.7) 38%,rgba(10,38,36,0) 58%)}
  .hero-inner{align-items:flex-start;padding-top:104px}
  .hero-foot{bottom:52px;font-size:.8rem}
  .ring{--dx:214px;width:236px;height:210px}
  .panel[style*="--i:2"]{visibility:hidden}
}
@media (max-width:480px){
  .brand span{font-size:.92rem}
  .cta .btn{flex:1}
  .hint{display:none}
}
noscript .ns{padding:120px 24px 60px;background:var(--deep);color:var(--lime);text-align:center}