/*
Theme Name: Tav Custom Theme
Template: Tav202401F
Version: 1.0
*/

/* فونت‌ها */
@font-face{font-family:'YekanBakhFaNum';src:url('fonts/YekanBakhFaNum-Regular.woff2') format('woff2'),url('fonts/YekanBakhFaNum-Regular.woff') format('woff');font-weight:400;font-display:swap}
@font-face{font-family:'YekanBakhFaNum';src:url('fonts/YekanBakhFaNum-Bold.woff2') format('woff2'),url('fonts/YekanBakhFaNum-Bold.woff') format('woff');font-weight:700;font-display:swap}

:root{
  --deep:#0B4A94;
  --brand:#0F62B0;
  --bright:#1C8FD9;
  --grad:linear-gradient(90deg,#0B4A94 0%,#1C8FD9 100%);
  --ink:#0F2740;
  --ink-2:#3A4D62;
  --mute:#6B7C8E;
  --tint:#EEF5FB;
  --paper:#F7FAFD;
  --line:#DCE6EF;
  --fa:'YekanBakhFaNum','Vazirmatn',system-ui,sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:90px}
body{font-family:var(--fa);color:var(--ink);background:#fff;font-size:16px;line-height:1.9;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
.wrap{width:min(1120px,92%);margin-inline:auto}
section{padding:96px 0}
.eyebrow{display:block;font-size:14px;font-weight:700;color:var(--brand);margin-bottom:10px}
h1,h2,h3{color:var(--ink);font-weight:700;line-height:1.6}
h1{font-size:clamp(30px,3.6vw,46px)}
h2{font-size:clamp(24px,2.4vw,32px);margin-bottom:14px}
h3{font-size:18px;margin-bottom:6px}
.lead{font-size:17px;color:var(--ink-2);line-height:2}
.muted{color:var(--mute);font-size:15px}
.head{margin-bottom:44px;max-width:640px}
.bar{height:3px;width:56px;background:var(--grad);border-radius:3px;margin-top:16px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 24px;border-radius:10px;font-size:15px;background:var(--brand);color:#fff;border:1px solid var(--brand);transition:background .25s,border-color .25s}
.btn:hover{background:var(--deep);border-color:var(--deep)}
.btn.outline{background:#fff;color:var(--brand);border-color:var(--line)}
.btn.outline:hover{border-color:var(--brand);background:var(--tint)}
.link{color:var(--brand);font-weight:700;font-size:15px}
.link:hover{color:var(--deep)}
.card{background:#fff;border:1px solid var(--line);border-radius:14px;overflow:hidden;transition:box-shadow .3s,border-color .3s}
.card:hover{box-shadow:0 12px 28px -18px rgba(15,39,64,.35);border-color:#C9DAEA}
.photo{background:var(--tint);overflow:hidden}
.photo img{width:100%;height:100%;object-fit:cover;display:block}
.rv{opacity:0;transform:translateY(14px);transition:opacity .7s ease,transform .7s ease}
.rv.in{opacity:1;transform:none}

/* HEADER */
header{
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  background: transparent;
  transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
  width: 100%;
  height: 90px;
  padding: 0 4%;
}
header.solid{
  top: 15px;
  width: min(1120px, 95%);
  margin-inline: auto;
  height: 75px;
  background: rgba(255, 255, 255, 0.7);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 50px;
  box-shadow: 0 10px 30px -10px rgba(15,39,64,0.15);
  padding: 0 30px;
}
.nav{ width: 100%; display: flex; align-items: center; justify-content: space-between; position: relative; }
.brand img{height: 52px;width:auto; transition: height 0.3s ease;}
header.solid .brand img{height: 42px;}
.menu{display:flex;gap:2px;list-style:none;align-items:center; position: absolute; left: 50%; transform: translateX(-50%);}
.menu > li{position:relative}
.menu > li > a,.menu > li > button{font-family:var(--fa);font-size:14px;color:var(--ink-2);background:none;border:0;padding:9px 12px;cursor:pointer;border-radius:8px;transition:background .2s,color .2s}
.menu > li > a:hover,.menu > li > button:hover{background:var(--tint);color:var(--brand)}
.menu .sub{position:absolute;top:calc(100% + 6px);inset-inline-start:0;min-width:230px;background:#fff;border:1px solid var(--line);border-radius:12px;padding:6px;list-style:none;opacity:0;visibility:hidden;transform:translateY(6px);transition:opacity .2s,transform .2s,visibility .2s;box-shadow:0 18px 36px -22px rgba(15,39,64,.4)}
.menu > li:hover > .sub,.menu > li.open > .sub{opacity:1;visibility:visible;transform:none}
.menu .sub a{display:block;padding:9px 12px;border-radius:8px;font-size:14px;color:var(--ink-2)}
.menu .sub a:hover{background:var(--tint);color:var(--brand)}
.menu .en-mobile{display:none}
.lang-btn{font-family: var(--fa);border: 1px solid var(--line);border-radius: 8px;padding: 7px 14px;font-size: 13px;font-weight: 700;color: var(--brand);background: #fff;transition: all 0.2s;}
.lang-btn:hover { background: var(--brand); color: #fff; border-color: var(--brand); }
header.solid .lang-btn { background: transparent; border-color: var(--brand); }
header.solid .lang-btn:hover { background: var(--brand); color: #fff; }
.menu-btn{display:none;background:none;border:1px solid var(--line);border-radius:8px;width:40px;height:40px;font-size:18px;color:var(--ink);cursor:pointer}

/* HERO */
.hero{padding:150px 0 70px;background:#fff;overflow:hidden}
.hero .intro{text-align:center;max-width:760px;margin:0 auto}
.hero .kicker{display:inline-flex;align-items:center;gap:12px;font-size:14px;font-weight:700;color:var(--brand)}
.hero .kicker::before,.hero .kicker::after{content:"";width:28px;height:2px;background:var(--grad)}
.hero h1{font-size:clamp(38px,4.8vw,62px);line-height:1.45;margin:18px 0 16px;font-weight:700}
.hero h1 em{font-style:normal;background:var(--grad);-webkit-background-clip:text;background-clip:text;color:transparent}
.hero .lead{max-width:560px;margin:0 auto 30px}
.hero .actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.slider{position:relative;margin:50px auto 0;height:520px;max-width:1240px;perspective:1600px;user-select:none}
.stage{position:absolute;inset:0;transform-style:preserve-3d}
.slide{--w:340px;--h:440px;position:absolute;left:50%;top:50%;width:var(--w);height:var(--h);margin-left:calc(var(--w) / -2);margin-top:calc(var(--h) / -2);border-radius:22px;overflow:hidden;background:var(--tint);box-shadow:0 30px 60px -34px rgba(11,74,148,.5);transition:transform .9s cubic-bezier(.2,.7,.2,1),opacity .9s ease;cursor:pointer}
.slide img{width:100%;height:100%;object-fit:cover;display:block}
.slide .cap{position:absolute;left:0;right:0;bottom:0;padding:90px 22px 22px;background:linear-gradient(180deg,rgba(8,30,55,0),rgba(8,30,55,.85));color:#fff;font-size:15px;line-height:1.8;opacity:0;transition:opacity .6s}
.slide.is-active .cap{opacity:1}
.slide.is-active{box-shadow:0 40px 80px -30px rgba(11,74,148,.6)}
.arrow{position:absolute;top:50%;transform:translateY(-50%);z-index:20;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:#fff;color:var(--brand);font-size:22px;cursor:pointer;box-shadow:0 12px 24px -16px rgba(15,39,64,.5);transition:background .2s,color .2s}
.arrow:hover{background:var(--brand);color:#fff}
.arrow.prev{left:calc(50% - 560px)}
.arrow.next{right:calc(50% - 560px)}
.dots{position:absolute;left:0;right:0;bottom:-6px;display:flex;justify-content:center;gap:8px;z-index:20}
.dots button{width:8px;height:8px;border-radius:99px;border:0;background:#C9D9E8;cursor:pointer;padding:0;transition:width .4s,background .4s}
.dots button.on{width:26px;background:var(--grad)}
.hero .facts{display:grid;grid-template-columns:repeat(4,1fr);margin-top:70px;border-top:1px solid var(--line)}
.hero .facts div{padding:26px 0 0;text-align:center}
.hero .facts div + div{border-inline-start:1px solid var(--line)}
.hero .facts b{display:block;font-size:36px;color:var(--ink);font-weight:700;line-height:1.1}
.hero .facts span{font-size:14px;color:var(--mute)}

/* TRUST */
.trust{padding:28px 0;border-bottom:1px solid var(--line)}
.trust ul{list-style:none;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px 24px;color:var(--ink-2);font-size:15px}
.trust li::before{content:"";display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--grad);margin-inline-end:10px;vertical-align:middle}

/* ABOUT */
.about .grid{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:start}
.about p + p{margin-top:14px}
.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:56px}
.step{border-top:3px solid var(--brand);padding-top:18px}
.step b{display:block;font-size:24px;color:var(--brand);font-weight:700;margin-bottom:6px}
.step p{font-size:14px;color:var(--ink-2);line-height:1.9}

/* LEADER */
.leader{background:var(--paper)}
.leader .grid{display:grid;grid-template-columns:380px 1fr;gap:56px;align-items:center}
.leader .photo{border-radius:16px;aspect-ratio:4/5}
.leader .photo img{height:100%;object-position:center top}
.role{color:var(--brand);font-weight:700;font-size:15px;margin:4px 0 16px}
.creds{list-style:none;margin:22px 0 26px;display:grid;gap:10px}
.creds li{padding-inline-start:18px;position:relative;color:var(--ink-2)}
.creds li::before{content:"";position:absolute;inset-inline-start:0;top:12px;width:7px;height:7px;border-radius:50%;background:var(--bright)}

/* VALUES */
.values .row{display:grid;grid-template-columns:repeat(5,1fr);gap:14px}
.value{background:#fff;border:1px solid var(--line);border-radius:14px;padding:24px 20px;min-height:140px}
.value span{display:block;font-size:13px;font-weight:700;color:var(--brand);margin-bottom:10px}
.value b{font-size:16px;line-height:1.8;color:var(--ink)}

/* GROUP */
.group{background:var(--paper)}
.group .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.co{display:flex;flex-direction:column}
.co .logo{height:120px;display:flex;align-items:center;justify-content:center;background:#fff;border-bottom:1px solid var(--line);padding:18px}
.co .logo img{max-height:84px;max-width:180px;width:auto;height:auto;object-fit:contain}
.co .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.co p{font-size:14px;color:var(--ink-2);line-height:1.9;flex:1;margin-bottom:14px}
.units{margin-top:18px;background:#fff;border:1px dashed #C9DAEA;border-radius:14px;padding:22px 24px;color:var(--ink-2);font-size:15px}
.units b{color:var(--ink)}

/* PROJECTS */
.proj .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.pj .photo{aspect-ratio:4/3;position:relative;display:flex;align-items:center;justify-content:center;background:var(--tint);color:var(--brand);font-size:20px;font-weight:700}
.pj .photo img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;z-index:1}
.pj .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1}
.pj .body p{font-size:14px;color:var(--ink-2);line-height:1.9;margin-bottom:16px;flex:1}
.specs{display:grid;grid-template-columns:1fr 1fr;gap:10px 16px;border-top:1px solid var(--line);padding-top:14px;margin-bottom:16px}
.specs small{display:block;font-size:12px;color:var(--mute)}
.specs span{font-size:14px;font-weight:700}
.floors{margin-bottom:16px}
.floors .bar2{display:flex;height:12px;border-radius:6px;overflow:hidden;margin-bottom:10px}
.floors .bar2 i{display:block;height:100%}
.floors .legend{display:flex;flex-wrap:wrap;gap:12px;font-size:13px;color:var(--ink-2)}
.floors .legend i{display:inline-block;width:10px;height:10px;border-radius:3px;margin-inline-end:6px;vertical-align:-1px}

/* UNIX */
.unix-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.unix-grid .photo{aspect-ratio:16/10;border-radius:14px}
.unix-grid img{width:100%;height:100%;object-fit:cover}

/* AWARDS */
.awards{background:var(--paper)}
.awards .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.award{background:#fff;border:1px solid var(--line);border-radius:14px;padding:20px 22px}
.award b{display:block;font-size:16px;margin-bottom:4px}
.award span{font-size:13px;color:var(--mute)}

/* NEWS */
.news .grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post .photo{aspect-ratio:16/10}
.post .body{padding:20px 22px 22px}
.post time{font-size:13px;color:var(--brand);font-weight:700}
.post h3{font-size:16px;line-height:1.8;margin:6px 0 4px}
.post p{font-size:14px;color:var(--mute)}
.sheet{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:18px}
.sheet figure .photo{aspect-ratio:16/9;border-radius:14px}
.sheet figcaption{font-size:13px;color:var(--mute);margin-top:8px}

/* CONTACT */
.contact{background:var(--paper)}
.contact .grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:start}
.contact dl > div{padding:16px 0;border-bottom:1px solid var(--line)}
.contact dt{font-size:13px;color:var(--brand);font-weight:700}
.contact dd{color:var(--ink-2);font-size:15px}
.contact .map{margin-top:22px;height:200px;border-radius:14px;overflow:hidden;border:1px solid var(--line)}
.contact .map iframe{width:100%;height:100%;border:0}
.form{background:#fff;border:1px solid var(--line);border-radius:16px;padding:30px}
form{display:grid;gap:12px}
form input,form textarea{width:100%;background:var(--paper);border:1px solid var(--line);border-radius:10px;padding:12px 14px;font-family:var(--fa);font-size:15px;color:var(--ink);outline:none}
form input:focus,form textarea:focus{border-color:var(--bright);background:#fff}
form textarea{min-height:110px;resize:vertical}
form .btn{justify-self:start;border:0;cursor:pointer;font-family:var(--fa)}
.note{font-size:13px;color:var(--brand);min-height:18px}

/* FOOTER */
footer{background:var(--ink);color:rgba(255,255,255,.7);padding:26px 0;font-size:14px}
footer .row{display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px}
footer .social{display:flex;gap:18px}
footer a:hover{color:#fff}

/* RESPONSIVE */
@media (max-width:1000px){
  header{height:75px}
  header.solid{width:100%;top:0;border-radius:0;border:none;padding:0 4%;background:rgba(255,255,255,.95);box-shadow:0 4px 10px rgba(0,0,0,.05)}
  .brand img{height:42px}
  .menu{display:none}
  .menu.open{display:flex;flex-direction:column;align-items:stretch;position:absolute;top:100%;inset-inline:0;padding:16px 4%;gap:2px;background:#fff;border-bottom:1px solid var(--line);transform:none;left:0}
  .menu .sub{position:static;opacity:1;visibility:visible;transform:none;box-shadow:none;border:0;padding:0 0 0 12px;display:none}
  .menu > li.open > .sub{display:block}
  .menu .en-mobile{display:block}
  .menu-btn{display:block}
  .lang-btn{display:none}
  .hero .grid,.about .grid,.leader .grid,.contact .grid{grid-template-columns:1fr;gap:36px}
  .hero .facts{grid-template-columns:1fr 1fr}
  .hero .facts div:nth-child(3){border-inline-start:0}
  .unix-grid{grid-template-columns:1fr}
  .leader .grid{grid-template-columns:1fr}
  .leader .photo{max-width:340px}
  .values .row{grid-template-columns:1fr 1fr}
  .group .grid,.proj .grid,.news .grid,.awards .grid{grid-template-columns:1fr 1fr}
  .timeline{grid-template-columns:1fr 1fr}
}
@media (max-width:640px){
  section{padding:70px 0}
  .hero .facts div:nth-child(3){border-inline-start:0}
  .hero .facts div:nth-child(n+3){border-top:1px solid var(--line)}
  .values .row,.group .grid,.proj .grid,.news .grid,.awards .grid,.timeline,.sheet{grid-template-columns:1fr}
  .form{padding:20px}
  .arch{max-width:100%;aspect-ratio:1/1}
}
@media (max-width:1000px){.slider{height:420px}.arrow{display:none}}
@media (max-width:640px){.slide{--w:250px;--h:330px}.hero{padding-top:120px}}