/* ===========================================================
   محمد بلوچی — مشاور مدیریت ساخت و ساخت‌وساز ناب
   Design tokens: Blueprint / Technical-Drawing system
   =========================================================== */

@import url('https://fonts.googleapis.com/css2?family=Vazirmatn:wght@400;500;600;700;800;900&family=IBM+Plex+Mono:wght@400;500;600&display=swap');

:root{
  /* --- colors --- */
  --navy-deep:   #122A42;
  --navy-mid:    #1B3E5E;
  --navy-line:   #2E5A82;
  --grid-line:   rgba(148, 189, 221, 0.16);
  --grid-line-strong: rgba(148, 189, 221, 0.32);
  --paper:       #F5F0E4;
  --paper-dim:   #EAE3D2;
  --ink:         #1B2430;
  --ink-soft:    #4C5A67;
  --ink-on-navy: #E9F0F5;
  --ink-on-navy-soft: #A9C3D6;
  --amber:       #E2932E;
  --amber-deep:  #B96F17;
  --line-blue:   #7FA8C9;
  --ok-green:    #4E8B6B;

  /* --- type --- */
  --font-fa: 'Vazirmatn', sans-serif;
  --font-mono: 'IBM Plex Mono', monospace;

  --radius: 3px;
  --container: 1120px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-fa);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-family:var(--font-fa);}

.wrap{max-width:var(--container);margin:0 auto;padding:0 28px;}

/* eyebrow / mono labels */
.eyebrow{
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:.12em;
  text-transform:uppercase;
  color:var(--amber);
  display:flex;
  align-items:center;
  gap:10px;
}
.eyebrow::before{
  content:"";
  width:22px;height:1px;background:var(--amber);
  display:inline-block;
}

/* ===================== NAV ===================== */
.site-header{
  position:sticky;top:0;z-index:50;
  background:var(--navy-deep);
  border-bottom:1px solid var(--navy-line);
}
.nav{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 28px;
  max-width:var(--container);margin:0 auto;
}
.brand{
  display:flex;align-items:center;gap:12px;
  color:var(--ink-on-navy);
}
.brand-mark{
  width:34px;height:34px;border:1.5px solid var(--amber);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:13px;color:var(--amber);
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-text b{font-size:15px;font-weight:700;}
.brand-text span{font-size:11px;color:var(--ink-on-navy-soft);font-family:var(--font-mono);letter-spacing:.03em;}

.nav-links{display:flex;gap:6px;align-items:center;}
.nav-links a{
  color:var(--ink-on-navy-soft);
  font-size:14.5px;font-weight:500;
  padding:8px 14px;border-radius:var(--radius);
  transition:color .15s, background .15s;
}
.nav-links a:hover,.nav-links a.active{color:var(--ink-on-navy);background:rgba(255,255,255,.06);}
.nav-cta{
  border:1px solid var(--amber) !important;
  color:var(--amber) !important;
  margin-inline-start:6px;
}
.nav-cta:hover{background:var(--amber) !important;color:var(--navy-deep) !important;}

.nav-toggle{display:none;background:none;border:0;color:var(--ink-on-navy);font-size:22px;cursor:pointer;}

.lang-switch{
  font-family:var(--font-mono);font-size:12.5px;font-weight:600;
  border:1px solid var(--navy-line);color:var(--ink-on-navy-soft);
  padding:7px 13px;border-radius:20px;margin-inline-start:6px;
  transition:border-color .15s, color .15s;
}
.lang-switch:hover{border-color:var(--amber);color:var(--amber);}

@media(max-width:860px){
  .nav-links{
    position:absolute;top:100%;right:0;left:0;
    background:var(--navy-deep);
    flex-direction:column;align-items:stretch;
    padding:8px 20px 18px;
    border-bottom:1px solid var(--navy-line);
    display:none;
  }
  .nav-links.open{display:flex;}
  .nav-links a{padding:12px 8px;}
  .nav-toggle{display:block;}
}

/* ===================== HERO (blueprint) ===================== */
.hero{
  position:relative;
  background:
    linear-gradient(180deg, var(--navy-deep), var(--navy-mid));
  color:var(--ink-on-navy);
  overflow:hidden;
  padding:76px 0 96px;
}
.hero::before{
  content:"";
  position:absolute;inset:0;
  background-image:
    repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 40px);
  pointer-events:none;
}
.hero::after{
  content:"";
  position:absolute; inset:0;
  background: radial-gradient(ellipse 60% 50% at 85% 20%, rgba(226,147,46,.10), transparent 60%);
  pointer-events:none;
}
.hero-inner{
  position:relative;z-index:2;
  display:grid;grid-template-columns:1.25fr .75fr;gap:56px;align-items:center;
}
@media(max-width:860px){.hero-inner{grid-template-columns:1fr;gap:40px;}}

.hero-title{
  font-size:clamp(30px,4.4vw,50px);
  font-weight:800;line-height:1.28;letter-spacing:-.01em;
  margin:16px 0 18px;
}
.hero-title em{color:var(--amber);font-style:normal;}
.hero-desc{
  color:var(--ink-on-navy-soft);
  font-size:17px;max-width:56ch;margin-bottom:30px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:34px;}
.tag{
  font-family:var(--font-mono);font-size:12px;
  border:1px solid var(--navy-line);color:var(--ink-on-navy-soft);
  padding:6px 12px;border-radius:20px;
}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;}

.btn{
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 24px;border-radius:var(--radius);
  font-size:14.5px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:transform .15s, background .15s, border-color .15s, color .15s;
}
.btn:hover{transform:translateY(-1px);}
.btn-amber{background:var(--amber);color:var(--navy-deep);}
.btn-amber:hover{background:var(--amber-deep);}
.btn-ghost{border-color:var(--navy-line);color:var(--ink-on-navy);}
.btn-ghost:hover{border-color:var(--amber);color:var(--amber);}
.btn-dark{border-color:var(--ink-soft);color:var(--ink);}
.btn-dark:hover{border-color:var(--ink);}

/* portrait / stamp */
.hero-figure{position:relative;justify-self:center;}
.stamp-ring{
  position:absolute;inset:-14px;
  border:1px dashed var(--navy-line);
  border-radius:50%;
  animation:spin 40s linear infinite;
}
@media (prefers-reduced-motion: reduce){.stamp-ring{animation:none;}}
@keyframes spin{to{transform:rotate(360deg);}}
.portrait{
  width:230px;height:230px;border-radius:50%;
  border:3px solid var(--amber);
  object-fit:cover;
  box-shadow:0 18px 40px rgba(0,0,0,.35);
}
.badge-phd{
  position:absolute;bottom:-6px;inset-inline-start:-14px;
  background:var(--paper);color:var(--ink);
  font-family:var(--font-mono);font-size:11.5px;font-weight:600;
  padding:8px 12px;border-radius:20px;
  border:1px solid var(--paper-dim);
  box-shadow:0 8px 18px rgba(0,0,0,.25);
}

/* corner crop marks - reusable */
.crop{position:relative;}
.crop::before,.crop::after{
  content:"";position:absolute;width:14px;height:14px;
  border-color:var(--line-blue);
  opacity:.7;
}
.crop::before{inset-block-start:-1px;inset-inline-end:-1px;border-block-start:1.5px solid var(--line-blue);border-inline-end:1.5px solid var(--line-blue);}
.crop::after{inset-block-end:-1px;inset-inline-start:-1px;border-block-end:1.5px solid var(--line-blue);border-inline-start:1.5px solid var(--line-blue);}

/* ===================== SECTIONS (paper) ===================== */
section{padding:84px 0;}
.section-head{max-width:640px;margin-bottom:48px;}
.section-title{
  font-size:clamp(24px,3vw,34px);font-weight:800;margin-top:14px;letter-spacing:-.01em;
}
.section-sub{color:var(--ink-soft);margin-top:12px;font-size:16px;}

.alt{background:var(--paper-dim);}

/* stat strip */
.stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--paper-dim);border-radius:var(--radius);
  overflow:hidden;background:var(--paper);
}
.stat{
  padding:26px 20px;text-align:center;border-inline-start:1px solid var(--paper-dim);
}
.stat:first-child{border-inline-start:none;}
.stat b{
  display:block;font-family:var(--font-mono);font-size:clamp(22px,3vw,32px);
  color:var(--navy-mid);font-weight:600;
}
.stat span{font-size:13px;color:var(--ink-soft);margin-top:6px;display:block;}
@media(max-width:700px){.stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(3){border-inline-start:none;}}

/* services grid */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
@media(max-width:900px){.grid-3{grid-template-columns:repeat(2,1fr);}}
@media(max-width:620px){.grid-3{grid-template-columns:1fr;}}

.card{
  background:var(--paper);border:1px solid var(--paper-dim);
  border-radius:var(--radius);padding:28px 24px;
  position:relative;
  transition:border-color .18s, transform .18s;
}
.card:hover{border-color:var(--amber);transform:translateY(-3px);}
.card .num{font-family:var(--font-mono);font-size:12px;color:var(--amber);letter-spacing:.08em;}
.icon-badge{
  width:46px;height:46px;border-radius:50%;
  background:var(--navy-deep);border:1px solid var(--navy-line);
  display:flex;align-items:center;justify-content:center;
  margin-bottom:14px;
}
.icon-badge svg{width:24px;height:24px;stroke:var(--amber);fill:none;stroke-width:1.7;}
.post-thumb{height:150px;background:var(--navy-mid);position:relative;overflow:hidden;display:flex;align-items:center;justify-content:center;}
.post-thumb svg{width:44px;height:44px;stroke:var(--amber);fill:none;stroke-width:1.4;position:relative;z-index:1;opacity:.9;}
.card h3{font-size:18.5px;margin:14px 0 10px;font-weight:700;}
.card p{color:var(--ink-soft);font-size:14.5px;margin:0;}
.card a.more{display:inline-block;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--navy-mid);border-bottom:1px solid var(--navy-mid);}

/* ===================== GANTT TIMELINE (signature) ===================== */
.gantt{border:1px solid var(--paper-dim);border-radius:var(--radius);overflow:hidden;background:var(--paper);}
.gantt-scale{
  display:grid;grid-template-columns:200px repeat(16,1fr);
  font-family:var(--font-mono);font-size:11px;color:var(--ink-soft);
  border-bottom:1px solid var(--paper-dim);
  background:var(--paper-dim);
}
.gantt-scale span{padding:8px 4px;text-align:center;border-inline-start:1px solid rgba(0,0,0,.06);}
.gantt-scale span:first-child{border-inline-start:none;text-align:start;padding-inline-start:16px;}
.gantt-row{display:grid;grid-template-columns:200px 1fr;align-items:center;border-bottom:1px solid var(--paper-dim);}
.gantt-row:last-child{border-bottom:none;}
.gantt-label{padding:14px 16px;font-size:13.5px;}
.gantt-label b{display:block;font-weight:700;font-size:13.5px;}
.gantt-label span{display:block;color:var(--ink-soft);font-size:12px;margin-top:2px;}
.gantt-track{position:relative;height:44px;background-image:repeating-linear-gradient(90deg, rgba(0,0,0,.045) 0 1px, transparent 1px calc(100%/16));}
.gantt-bar{
  position:absolute;top:10px;height:24px;border-radius:3px;
  display:flex;align-items:center;padding:0 10px;
  font-family:var(--font-mono);font-size:11px;color:#fff;white-space:nowrap;
  overflow:hidden;
}
.bar-industry{background:var(--navy-mid);}
.bar-academic{background:var(--ok-green);}
.bar-consult{background:var(--amber-deep);}
.gantt-legend{display:flex;gap:22px;padding:14px 16px;font-family:var(--font-mono);font-size:12px;color:var(--ink-soft);border-top:1px solid var(--paper-dim);flex-wrap:wrap;}
.gantt-legend i{display:inline-block;width:12px;height:12px;border-radius:2px;margin-inline-end:6px;vertical-align:-1px;}
@media(max-width:760px){
  .gantt{overflow-x:auto;}
  .gantt-scale,.gantt-row{min-width:900px;}
}

/* credentials / memberships list */
.creds{display:grid;grid-template-columns:1fr 1fr;gap:14px;}
@media(max-width:700px){.creds{grid-template-columns:1fr;}}
.cred-item{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--paper);border:1px solid var(--paper-dim);border-radius:var(--radius);
  padding:16px 18px;
}
.cred-item i{
  width:30px;height:30px;border-radius:50%;flex-shrink:0;
  border:1.5px solid var(--amber);color:var(--amber);
  display:flex;align-items:center;justify-content:center;
  font-family:var(--font-mono);font-size:12px;font-style:normal;
}
.cred-item b{display:block;font-size:14.5px;}
.cred-item span{color:var(--ink-soft);font-size:13px;}

/* quote / philosophy */
.philosophy{
  background:var(--navy-deep);color:var(--ink-on-navy);position:relative;overflow:hidden;
}
.philosophy::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 40px),
    repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 40px);
}
.philosophy .wrap{position:relative;z-index:2;}
.philosophy blockquote{
  font-size:clamp(20px,2.6vw,28px);font-weight:600;line-height:1.6;max-width:820px;margin:0;
}
.philosophy blockquote span{color:var(--amber);}
.philosophy cite{display:block;margin-top:22px;font-style:normal;color:var(--ink-on-navy-soft);font-family:var(--font-mono);font-size:13px;}

/* blog cards */
.post-card{
  background:var(--paper);border:1px solid var(--paper-dim);border-radius:var(--radius);
  overflow:hidden;display:flex;flex-direction:column;
}
.post-thumb{height:150px;background:var(--navy-mid);position:relative;overflow:hidden;}
.post-thumb::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(0deg, var(--grid-line) 0 1px, transparent 1px 24px),repeating-linear-gradient(90deg, var(--grid-line) 0 1px, transparent 1px 24px);}
.post-body{padding:20px 22px;flex:1;display:flex;flex-direction:column;}
.post-meta{font-family:var(--font-mono);font-size:11.5px;color:var(--amber-deep);margin-bottom:10px;}
.post-body h3{font-size:17px;margin:0 0 10px;line-height:1.5;}
.post-body p{color:var(--ink-soft);font-size:14px;margin:0;flex:1;}
.post-body a.more{margin-top:14px;font-size:13.5px;font-weight:600;color:var(--navy-mid);border-bottom:1px solid var(--navy-mid);align-self:flex-start;}
.post-card.soon{opacity:.6;}
.post-card.soon .post-meta{color:var(--ink-soft);}

/* article page */
.article{max-width:760px;margin:0 auto;}
.article h1{font-size:clamp(26px,4vw,38px);font-weight:800;line-height:1.4;margin:18px 0 20px;}
.article .lead{font-size:17px;color:var(--ink-soft);margin-bottom:34px;}
.article h2{font-size:22px;font-weight:700;margin:38px 0 14px;}
.article p{font-size:16px;margin:0 0 18px;color:var(--ink);}
.article ul{margin:0 0 18px;padding-inline-start:22px;list-style:disc;color:var(--ink);}
.article li{margin-bottom:8px;}

/* contact */
.contact-grid{display:grid;grid-template-columns:1fr 1fr;gap:40px;}
@media(max-width:820px){.contact-grid{grid-template-columns:1fr;}}
.contact-item{
  display:flex;gap:16px;align-items:flex-start;padding:18px 0;border-bottom:1px solid var(--paper-dim);
}
.contact-item i{
  width:38px;height:38px;border-radius:50%;border:1.5px solid var(--navy-mid);color:var(--navy-mid);
  display:flex;align-items:center;justify-content:center;flex-shrink:0;font-style:normal;font-family:var(--font-mono);font-size:14px;
}
.contact-item b{display:block;font-size:14.5px;margin-bottom:2px;}
.contact-item a,.contact-item span{color:var(--ink-soft);font-size:14.5px;}
.contact-item a:hover{color:var(--navy-mid);}

.form-field{margin-bottom:18px;}
.form-field label{display:block;font-size:13.5px;font-weight:600;margin-bottom:8px;}
.form-field input,.form-field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--paper-dim);border-radius:var(--radius);
  font-family:var(--font-fa);font-size:14.5px;background:var(--paper);color:var(--ink);
}
.form-field textarea{resize:vertical;min-height:120px;}
.form-field input:focus,.form-field textarea:focus{outline:2px solid var(--amber);outline-offset:1px;}

/* footer */
.site-footer{background:var(--navy-deep);color:var(--ink-on-navy-soft);padding:48px 0 28px;}
.footer-top{display:flex;justify-content:space-between;flex-wrap:wrap;gap:30px;padding-bottom:30px;border-bottom:1px solid var(--navy-line);}
.footer-links{display:flex;gap:34px;flex-wrap:wrap;}
.footer-links a{font-size:14px;}
.footer-links a:hover{color:var(--amber);}
.footer-bottom{display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;padding-top:22px;font-size:12.5px;font-family:var(--font-mono);}

/* focus visibility */
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--amber);outline-offset:2px;
}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease, transform .6s ease;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){.reveal{opacity:1;transform:none;transition:none;}}