/* ============================================================
   1. RESET & DESIGN TOKENS
   ============================================================ */
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box;}

:root{
  /* ---------- Strict grayscale palette ---------- */
  --black:#101010;
  --dark-gray:#1d1d1d;
  --gray:#2b2b2b;
  --gray-line:#3a3a3a;
  --white:#ffffff;
  --silver:#cfcfcf;
  --silver-dim:rgba(207,207,207,0.55);

  --surface:rgba(255,255,255,0.035);
  --surface-strong:rgba(255,255,255,0.06);
  --border:rgba(255,255,255,0.1);
  --border-strong:rgba(255,255,255,0.22);

  --shadow:0 20px 60px -20px rgba(0,0,0,0.85);
  --shadow-lift:0 30px 70px -18px rgba(0,0,0,0.9);

  --radius-sm:6px;
  --radius-md:14px;
  --radius-lg:26px;
  --radius-full:999px;

  --font-fa:'Vazirmatn',sans-serif;
  --font-en:'Oswald',sans-serif;

  --ease:cubic-bezier(.16,.84,.44,1);
  --nav-h:88px;
}

html{scroll-behavior:smooth;scroll-padding-top:var(--nav-h);}

body{
  font-family:var(--font-fa);
  background:var(--black);
  color:var(--white);
  line-height:1.85;
  overflow-x:hidden;
  position:relative;
}

/* Fixed film-grain texture for a premium cinematic finish */
body::before{
  content:"";
  position:fixed;inset:0;
  z-index:5000;
  pointer-events:none;
  opacity:0.035;
  mix-blend-mode:overlay;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img{max-width:100%;display:block;}
a{text-decoration:none;color:inherit;}
ul{list-style:none;}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit;}
input,textarea{font-family:inherit;}

::selection{background:var(--white);color:var(--black);}
::-webkit-scrollbar{width:8px;}
::-webkit-scrollbar-track{background:var(--black);}
::-webkit-scrollbar-thumb{background:var(--gray-line);border-radius:10px;}

.container{
  width:100%;
  max-width:1280px;
  margin-inline:auto;
  padding-inline:28px;
}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-family:var(--font-en);
  font-size:12.5px;
  letter-spacing:5px;
  text-transform:uppercase;
  color:var(--silver);
  font-weight:500;
  margin-bottom:20px;
}
.eyebrow::before{
  content:"";
  width:36px;height:1px;
  background:var(--silver);
  display:inline-block;
}

.section-head{
  text-align:center;
  max-width:680px;
  margin:0 auto 76px;
}
.section-head h2{
  font-size:clamp(34px,5vw,58px);
  font-weight:900;
  letter-spacing:-1px;
  margin-bottom:18px;
  line-height:1.15;
}
.section-head p{
  color:var(--silver-dim);
  font-size:16.5px;
}

section{position:relative;padding:150px 0;}
section.tight{padding:110px 0;}

.hair{
  width:100%;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--border-strong),transparent);
}

/* ============================================================
   2. PRELOADER
   ============================================================ */
#preloader{
  position:fixed;inset:0;z-index:9999;
  background:var(--black);
  display:flex;align-items:center;justify-content:center;
  flex-direction:column;gap:26px;
  transition:opacity .8s var(--ease), visibility .8s var(--ease);
}
#preloader.hide{opacity:0;visibility:hidden;}
.loader-mark{
  font-family:var(--font-en);
  font-size:14px;
  letter-spacing:8px;
  color:var(--silver);
  text-transform:uppercase;
}
.loader-bar{
  width:220px;height:2px;
  background:var(--gray-line);
  overflow:hidden;
  position:relative;
}
.loader-bar::after{
  content:"";
  position:absolute;top:0;bottom:0;right:0;
  width:40%;
  background:var(--white);
  animation:loaderSlide 1.1s var(--ease) infinite;
}
@keyframes loaderSlide{
  0%{transform:translateX(0);}
  50%{transform:translateX(-160%);}
  100%{transform:translateX(-260%);}
}

/* ============================================================
   3. SCROLL PROGRESS
   ============================================================ */
#scroll-progress{
  position:fixed;top:0;left:0;height:2px;width:0%;
  background:var(--white);
  z-index:2100;
  transition:width .1s linear;
}

/* ============================================================
   4. NAVBAR
   ============================================================ */
header.navbar{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  height:var(--nav-h);
  display:flex;align-items:center;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .5s var(--ease), border-color .5s var(--ease), backdrop-filter .5s var(--ease);
}
header.navbar.scrolled{
  background:rgba(0,0,0,0.88);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
}
.nav-inner{
  width:100%;max-width:1280px;margin-inline:auto;padding-inline:28px;
  display:flex;align-items:center;justify-content:space-between;
}
.logo{
  font-family:var(--font-en);
  font-weight:700;
  font-size:22px;
  letter-spacing:3px;
  text-transform:uppercase;
  display:flex;align-items:center;gap:10px;
}
.logo .bar{width:22px;height:2px;background:var(--white);}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;
  padding:12px 20px;
  font-size:15px;
  font-weight:500;
  color:var(--silver);
  transition:color .3s ease;
}
.nav-links a:hover{color:var(--white);}
.nav-links a.active{color:var(--white);}
.nav-links a.active::after{
  content:"";
  position:absolute;
  bottom:6px;left:50%;transform:translateX(-50%);
  width:4px;height:4px;border-radius:50%;
  background:var(--white);
}

.nav-cta{display:flex;align-items:center;gap:16px;}
.hamburger{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--border);
  align-items:center;justify-content:center;
  font-size:17px;
  border-radius:var(--radius-sm);
}

/* ============================================================
   5. BUTTONS
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:12px;
  padding:17px 34px;
  font-weight:600;
  font-size:14.5px;
  letter-spacing:1px;
  border-radius:var(--radius-full);
  transition:transform .4s var(--ease), box-shadow .4s var(--ease), background .4s var(--ease), color .4s var(--ease);
}
.btn-primary{
  background:var(--white);
  color:var(--black);
}
.btn-primary:hover{
  transform:translateY(-3px);
  box-shadow:0 18px 40px -12px rgba(255,255,255,0.25);
}
.btn-outline{
  background:transparent;
  color:var(--white);
  border:1px solid var(--border-strong);
}
.btn-outline:hover{
  transform:translateY(-3px);
  background:var(--surface-strong);
  border-color:var(--white);
}
.btn-sm{padding:11px 22px;font-size:12.5px;}

/* ============================================================
   6. HERO
   ============================================================ */
.hero{
  min-height:100vh;
  display:flex;
  align-items:flex-end;
  position:relative;
  overflow:hidden;
}
.hero-media{
  position:absolute;inset:0;
  z-index:-3;
}
.hero-media img{
  width:100%;height:100%;object-fit:cover;
  object-position:center 20%;
  /* filter:grayscale(1) contrast(1.12) brightness(0.85); */
}
.hero-overlay{
  position:absolute;inset:0;
  z-index:-2;
  background:
    linear-gradient(to top, rgba(0,0,0,0.96) 5%, rgba(0,0,0,0.55) 45%, rgba(0,0,0,0.35) 70%, rgba(0,0,0,0.75) 100%),
    linear-gradient(90deg, rgba(0,0,0,0.55), transparent 55%);
}

/* Smoke particles - soft blurred grayscale blobs drifting upward */
.smoke-layer{
  position:absolute;inset:0;
  z-index:-1;
  overflow:hidden;
  pointer-events:none;
}
.smoke{
  position:absolute;
  bottom:-20%;
  width:340px;height:340px;
  background:radial-gradient(circle, rgba(255,255,255,0.10), transparent 70%);
  border-radius:50%;
  filter:blur(30px);
  animation:smokeRise linear infinite;
  opacity:0;
}
@keyframes smokeRise{
  0%{transform:translateY(0) translateX(0) scale(0.8);opacity:0;}
  10%{opacity:0.5;}
  50%{transform:translateY(-55vh) translateX(30px) scale(1.15);opacity:0.35;}
  90%{opacity:0.12;}
  100%{transform:translateY(-105vh) translateX(-20px) scale(1.4);opacity:0;}
}

.hero-inner{
  position:relative;
  z-index:2;
  width:100%;
  padding-bottom:110px;
}
.hero-eyebrow{
  font-family:var(--font-en);
  font-size:13px;
  letter-spacing:6px;
  text-transform:uppercase;
  color:var(--silver);
  margin-bottom:22px;
  display:flex;
  align-items:center;
  gap:14px;
}
.hero-eyebrow::before{content:"";width:44px;height:1px;background:var(--silver);}

.hero-name{
  font-size:clamp(52px,10vw,132px);
  font-weight:900;
  letter-spacing:-3px;
  line-height:0.95;
  text-transform:uppercase;
  margin-bottom:26px;
  max-width:900px;
}
.hero-name .thin{
  -webkit-text-stroke:1.5px var(--white);
  color:transparent;
  display:block;
}

.hero-sub{
  font-family:var(--font-en);
  font-size:clamp(15px,1.6vw,19px);
  letter-spacing:2px;
  text-transform:uppercase;
  color:var(--silver);
  margin-bottom:22px;
}

.hero-intro{
  max-width:560px;
  color:var(--silver-dim);
  font-size:16.5px;
  margin-bottom:40px;
}

.hero-actions{display:flex;gap:18px;flex-wrap:wrap;}

.hero-scroll-hint{
  position:absolute;
  bottom:40px; inset-inline-end:28px;
  z-index:3;
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:10px;
  color:var(--silver);
}
.hero-scroll-hint span{
  writing-mode:vertical-rl;
  font-family:var(--font-en);
  font-size:11px;
  letter-spacing:4px;
  text-transform:uppercase;
}
.scroll-line{
  width:1px;height:50px;
  background:var(--gray-line);
  position:relative;
  overflow:hidden;
}
.scroll-line::after{
  content:"";
  position:absolute;top:-100%;left:0;right:0;
  height:100%;
  background:var(--white);
  animation:scrollLine 2s infinite;
}
@keyframes scrollLine{
  0%{top:-100%;}
  60%{top:100%;}
  100%{top:100%;}
}

/* ============================================================
   7. CARD (shared)
   ============================================================ */
.card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}

/* ============================================================
   8. ABOUT SECTION
   ============================================================ */
.about-grid{
  display:grid;
  grid-template-columns:0.95fr 1.35fr;
  gap:48px;
  align-items:start;
}
.about-portrait{
  position:relative;
  border-radius:var(--radius-lg);
  overflow:hidden;
  aspect-ratio:3/4;
  border:1px solid var(--border);
}
.about-portrait img{
  width:100%;height:100%;object-fit:cover;
  /* filter:grayscale(1) contrast(1.1); */
}
.about-portrait::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(to top, rgba(0,0,0,0.75), transparent 55%);
}
.about-portrait .tag{
  position:absolute;
  bottom:24px;inset-inline-start:24px;
  z-index:2;
  font-family:var(--font-en);
  font-size:12px;
  letter-spacing:3px;
  text-transform:uppercase;
  color:var(--silver);
}

.about-content h3{
  font-size:26px;
  font-weight:800;
  margin-bottom:18px;
  letter-spacing:-0.5px;
}
.about-content p{
  color:var(--silver-dim);
  font-size:16px;
  margin-bottom:16px;
}

.achieve-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:16px;
  margin:36px 0;
}
.achieve-card{
  padding:24px 18px;
  text-align:center;
}
.achieve-card i{font-size:22px;color:var(--white);margin-bottom:14px;}
.achieve-card strong{display:block;font-family:var(--font-en);font-size:26px;font-weight:600;margin-bottom:4px;}
.achieve-card span{font-size:12.5px;color:var(--silver-dim);}

.info-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-top:20px;
}
.info-item{
  display:flex;align-items:center;gap:14px;
  padding:16px 18px;
  border-radius:var(--radius-sm);
  background:var(--surface);
  border:1px solid var(--border);
}
.info-item .ic{
  width:40px;height:40px;
  border-radius:50%;
  border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:15px;
  flex-shrink:0;
}
.info-item small{display:block;color:var(--silver-dim);font-size:11.5px;}
.info-item strong{font-size:13.5px;font-weight:600;}

/* ============================================================
   9. STATISTICS
   ============================================================ */
.stats-section{padding:100px 0;background:var(--dark-gray);border-block:1px solid var(--border);}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(5,1fr);
  gap:0;
}
.stat-card{
  text-align:center;
  padding:0 20px;
  border-inline-start:1px solid var(--border);
}
.stat-card:first-child{border-inline-start:none;}
.stat-num{
  font-family:var(--font-en);
  font-size:clamp(38px,4.5vw,54px);
  font-weight:700;
  letter-spacing:-1px;
}
.stat-label{
  color:var(--silver-dim);
  font-size:13px;
  letter-spacing:1px;
  margin-top:10px;
  text-transform:uppercase;
  font-family:var(--font-en);
  font-weight:400;
}

/* ============================================================
   10. CERTIFICATES
   ============================================================ */
.cert-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:26px;
}
.cert-card{
  overflow:hidden;
  transition:transform .5s var(--ease), box-shadow .5s var(--ease), border-color .5s var(--ease);
}
.cert-card:hover{
  transform:translateY(-10px);
  box-shadow:var(--shadow-lift);
  border-color:var(--border-strong);
}
.cert-img{position:relative;height:180px;overflow:hidden;}
.cert-img img{
  width:100%;height:100%;object-fit:cover;
  /* filter:grayscale(1) contrast(1.1); */
  transition:transform .7s var(--ease);
}
.cert-card:hover .cert-img img{transform:scale(1.1);}
.cert-img::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top, rgba(0,0,0,0.9), transparent 60%);
}
.cert-body{padding:22px 24px 26px;}
.cert-org{
  font-family:var(--font-en);
  font-size:11.5px;
  letter-spacing:1.5px;
  text-transform:uppercase;
  color:var(--silver);
  display:flex;align-items:center;gap:8px;
  margin-bottom:10px;
}
.cert-body h4{font-size:17px;font-weight:700;margin-bottom:10px;line-height:1.5;}
.cert-body p{font-size:13.5px;color:var(--silver-dim);margin-bottom:14px;}
.cert-date{
  font-family:var(--font-en);
  font-size:11px;
  color:var(--silver-dim);
  display:flex;align-items:center;gap:6px;
  letter-spacing:1px;
}

/* ============================================================
   11. COMPETITIONS TIMELINE
   ============================================================ */
.comp-timeline{position:relative;max-width:940px;margin:0 auto;}
.comp-timeline::before{
  content:"";
  position:absolute;top:0;bottom:0;left:50%;transform:translateX(-50%);
  width:1px;background:var(--gray-line);
}
.comp-item{
  display:grid;
  grid-template-columns:1fr 50px 1fr;
  align-items:center;
  margin-bottom:48px;
  position:relative;
}
.comp-item:last-child{margin-bottom:0;}
.comp-card{padding:26px;display:flex;gap:18px;}
.comp-item:nth-child(odd) .comp-card{grid-column:1;}
.comp-item:nth-child(odd) .comp-spacer{grid-column:3;}
.comp-item:nth-child(even) .comp-card{grid-column:3;}
.comp-item:nth-child(even) .comp-spacer{grid-column:1;}
.comp-node{
  grid-column:2;
  width:50px;height:50px;
  border-radius:50%;
  background:var(--black);
  border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  z-index:2;
}
.comp-img{width:84px;height:84px;border-radius:12px;overflow:hidden;flex-shrink:0;}
.comp-img img{width:100%;height:100%;object-fit:cover;/*filter:grayscale(1) contrast(1.1);*/}
.comp-info .rank{
  display:inline-flex;align-items:center;gap:6px;
  font-family:var(--font-en);
  font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;
  color:var(--black);background:var(--white);
  padding:4px 13px;border-radius:var(--radius-full);
  margin-bottom:10px;
}
.comp-info .cat{
  font-family:var(--font-en);
  font-size:11px;
  color:var(--silver-dim);
  letter-spacing:1px;
  text-transform:uppercase;
  margin-inline-start:8px;
}
.comp-info h4{font-size:16.5px;font-weight:700;margin-bottom:6px;}
.comp-info .comp-date{font-family:var(--font-en);font-size:11px;color:var(--silver-dim);margin-bottom:6px;display:block;letter-spacing:1px;}
.comp-info p{font-size:13px;color:var(--silver-dim);}

/* ============================================================
   12. GALLERY
   ============================================================ */
.gallery-masonry{column-count:4;column-gap:18px;}
.gallery-item{
  break-inside:avoid;margin-bottom:18px;
  border-radius:var(--radius-md);overflow:hidden;
  position:relative;cursor:pointer;
  box-shadow:var(--shadow);
  border:1px solid var(--border);
}
.gallery-item img{
  width:100%;display:block;
  /* filter:grayscale(1) contrast(1.1); */
  transition:transform .7s var(--ease), filter .7s var(--ease);
}
.gallery-item:hover img{transform:scale(1.12);/*filter:grayscale(0.4) contrast(1.15) brightness(0.65);*/}
.gallery-overlay{
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  opacity:0;transition:opacity .4s var(--ease);
  background:linear-gradient(to top, rgba(0,0,0,0.8), rgba(0,0,0,0.1));
}
.gallery-item:hover .gallery-overlay{opacity:1;}
.gallery-overlay i{
  font-size:20px;color:var(--white);
  width:52px;height:52px;border-radius:50%;
  background:rgba(255,255,255,0.08);
  border:1px solid var(--border-strong);
  backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  transform:scale(0.7);transition:transform .4s var(--ease);
}
.gallery-item:hover .gallery-overlay i{transform:scale(1);}

/* Lightbox */
#lightbox{
  position:fixed;inset:0;z-index:3000;
  background:rgba(0,0,0,0.97);
  backdrop-filter:blur(10px);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;
  transition:opacity .4s var(--ease), visibility .4s var(--ease);
}
#lightbox.active{opacity:1;visibility:visible;}
#lightbox img{
  max-width:88vw;max-height:82vh;
  /* filter:grayscale(1) contrast(1.1); */
  border-radius:var(--radius-md);
  box-shadow:0 40px 90px rgba(0,0,0,0.85);
  animation:zoomIn .45s var(--ease);
}
@keyframes zoomIn{from{transform:scale(0.85);opacity:0;}to{transform:scale(1);opacity:1;}}
.lb-close,.lb-prev,.lb-next{
  position:absolute;width:50px;height:50px;border-radius:50%;
  background:var(--surface-strong);
  border:1px solid var(--border-strong);
  color:var(--white);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  transition:background .3s ease, color .3s ease, transform .3s ease;
}
.lb-close:hover,.lb-prev:hover,.lb-next:hover{background:var(--white);color:var(--black);transform:scale(1.08);}
.lb-close{top:26px;inset-inline-end:26px;}
.lb-prev{top:50%;transform:translateY(-50%);inset-inline-start:26px;}
.lb-next{top:50%;transform:translateY(-50%);inset-inline-end:26px;}
.lb-counter{
  position:absolute;bottom:26px;left:50%;transform:translateX(-50%);
  font-family:var(--font-en);font-size:13px;color:var(--silver);letter-spacing:2px;
}

/* ============================================================
   13. CONTACT
   ============================================================ */
.contact-grid{
  display:grid;
  grid-template-columns:0.9fr 1.4fr;
  gap:30px;
  align-items:start;
}
.contact-cards{display:flex;flex-direction:column;gap:16px;}
.contact-card{
  display:flex;align-items:center;gap:16px;
  padding:22px;
  transition:transform .35s var(--ease), border-color .35s var(--ease);
}
.contact-card:hover{transform:translateX(-6px);border-color:var(--border-strong);}
[dir="rtl"] .contact-card:hover{transform:translateX(6px);}
.contact-card .ic{
  width:48px;height:48px;border-radius:50%;
  border:1px solid var(--border-strong);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;flex-shrink:0;
}
.contact-card small{display:block;color:var(--silver-dim);font-size:11.5px;margin-bottom:3px;}
.contact-card strong{font-size:14.5px;font-weight:600;}

.contact-form{padding:44px;}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-bottom:18px;}
.field{display:flex;flex-direction:column;gap:9px;}
.field.full{grid-column:1/-1;}
.field label{font-size:12.5px;color:var(--silver-dim);letter-spacing:0.5px;}
.field input,.field textarea{
  padding:15px 17px;
  border-radius:var(--radius-sm);
  background:rgba(255,255,255,0.02);
  border:1px solid var(--border);
  color:var(--white);
  font-size:14.5px;
  transition:border-color .3s ease;
}
.field textarea{resize:vertical;min-height:130px;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--white);}
.submit-btn{width:100%;justify-content:center;margin-top:6px;}
.form-msg{
  margin-top:16px;font-size:13.5px;color:var(--silver);
  display:none;align-items:center;gap:8px;
}
.form-msg.show{display:flex;}

/* ============================================================
   14. FOOTER
   ============================================================ */
footer{padding:70px 0 34px;border-top:1px solid var(--border);}
.footer-inner{display:flex;flex-direction:column;align-items:center;gap:30px;text-align:center;}
.footer-social{display:flex;gap:14px;}
.footer-social a{
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--border-strong);
  font-size:16px;
  transition:transform .35s var(--ease), background .35s var(--ease), color .35s var(--ease);
}
.footer-social a:hover{transform:translateY(-5px);background:var(--white);color:var(--black);}
.footer-copy{color:var(--silver-dim);font-size:12.5px;font-family:var(--font-en);letter-spacing:1px;}

#back-to-top{
  position:fixed;bottom:28px;inset-inline-end:28px;
  width:52px;height:52px;border-radius:50%;
  background:var(--white);color:var(--black);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;z-index:900;
  opacity:0;visibility:hidden;transform:translateY(16px);
  transition:opacity .4s var(--ease), transform .4s var(--ease), visibility .4s var(--ease), box-shadow .4s var(--ease);
  box-shadow:0 16px 36px -10px rgba(0,0,0,0.6);
}
#back-to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
#back-to-top:hover{box-shadow:0 20px 44px -8px rgba(0,0,0,0.75);}

/* ============================================================
   15. SCROLL REVEAL ANIMATIONS
   ============================================================ */
[data-animate]{opacity:0;transition:opacity 1s var(--ease), transform 1s var(--ease);will-change:transform,opacity;}
[data-animate].in-view{opacity:1;transform:none !important;}
[data-animate="fade-up"]{transform:translateY(46px);}
[data-animate="zoom"]{transform:scale(0.88);}
[data-animate="slide-right"]{transform:translateX(60px);}
[data-animate="slide-left"]{transform:translateX(-60px);}

@media (prefers-reduced-motion: reduce){
  *{animation-duration:0.001ms !important;animation-iteration-count:1 !important;transition-duration:0.001ms !important;scroll-behavior:auto !important;}
}

/* ============================================================
   16. RESPONSIVE
   ============================================================ */
@media (max-width:1100px){
  .cert-grid{grid-template-columns:repeat(3,1fr);}
  .gallery-masonry{column-count:3;}
  .stats-grid{grid-template-columns:repeat(3,1fr);}
  .stat-card:nth-child(4){border-inline-start:none;}
}
@media (max-width:992px){
  .about-grid{grid-template-columns:1fr;}
  .contact-grid{grid-template-columns:1fr;}
  .comp-item{grid-template-columns:1fr;}
  .comp-item .comp-card{grid-column:1 !important;}
  .comp-item .comp-spacer{display:none;}
  .comp-node{position:absolute;top:-10px;inset-inline-start:calc(50% - 25px);}
  .comp-timeline::before{display:none;}
  .comp-item{padding-top:54px;}
  .about-portrait{aspect-ratio:16/10;}
}
@media (max-width:860px){
  .nav-links{
    position:fixed;top:var(--nav-h);inset-inline-end:0;
    height:calc(100vh - var(--nav-h));width:280px;
    background:rgba(0,0,0,0.98);
    flex-direction:column;align-items:stretch;
    padding:28px;gap:6px;
    transform:translateX(110%);
    transition:transform .5s var(--ease);
    border-inline-start:1px solid var(--border);
  }
  [dir="rtl"] .nav-links{transform:translateX(-110%);}
  .nav-links.open{transform:translateX(0);}
  .nav-links a{width:100%;padding:16px 18px;}
  .hamburger{display:flex;}
  .nav-cta .btn-sm{display:none;}
}
@media (max-width:768px){
  section{padding:100px 0;}
  .cert-grid{grid-template-columns:repeat(2,1fr);}
  .gallery-masonry{column-count:2;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .stat-card:nth-child(3){border-inline-start:none;}
  .info-list{grid-template-columns:1fr;}
  .form-row{grid-template-columns:1fr;}
  .achieve-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:520px){
  .cert-grid{grid-template-columns:1fr;}
  .gallery-masonry{column-count:1;}
  .stats-grid{grid-template-columns:1fr 1fr;}
  .stat-card{border-inline-start:none;padding:14px 10px;}
  .hero-actions{flex-direction:column;width:100%;}
  .hero-actions .btn{width:100%;justify-content:center;}
  #back-to-top{width:46px;height:46px;bottom:18px;inset-inline-end:18px;}
}