/* ============================================================
   TOKENS
   ============================================================ */
:root{
  --ink:        #1C2321;
  --ink-soft:   #4B5560;
  --muted:      #7A8790;
  --bg:         #F4F6F5;
  --card:       #FFFFFF;
  --accent:     #0F6E5B;
  --accent-soft:#E4F3EE;
  --accent-2:   #16805F;
  --border:     #E3E8E6;
  --sidebar-bg: #14211E;
  --sidebar-ink:#F1F5F3;
  --sidebar-muted: #9FB3AC;

  --font-fa: 'Vazirmatn', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  --radius: 14px;
  --radius-sm: 10px;
  --max-width: 1180px;
}

*{ box-sizing:border-box; margin:0; padding:0; }

html{ scroll-behavior:smooth; }

body{
  background:var(--bg);
  color:var(--ink);
  font-family:var(--font-fa);
  font-size:17px;
  line-height:1.95;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration:.001ms !important; }
}

a{ color:inherit; text-decoration:none; }
ul{ list-style:none; }
svg{ width:1em; height:1em; fill:currentColor; display:block; }

:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}

/* ============================================================
   PAGE LAYOUT
   ============================================================ */
.page{
  max-width:var(--max-width);
  margin:0 auto;
  padding:40px 24px;
  display:grid;
  grid-template-columns: 320px 1fr;
  gap:32px;
  align-items:start;
}

@media (max-width:920px){
  .page{ grid-template-columns:1fr; padding:24px 16px; gap:20px; }
}

/* ============================================================
   SIDEBAR
   ============================================================ */
.sidebar{
  background:var(--sidebar-bg);
  color:var(--sidebar-ink);
  border-radius:var(--radius);
  position:sticky;
  top:24px;
  overflow:hidden;
}
@media (max-width:920px){
  .sidebar{ position:static; }
}

.sidebar__inner{
  padding:40px 30px;
}
@media (max-width:920px){
  .sidebar__inner{
    padding:32px 24px;
    display:flex;
    flex-direction:column;
    align-items:center;
    text-align:center;
  }
  .sidebar__section{ width:100%; }
  .lang-list li,
  .contact-list li{ justify-content:center; }
  .contact-list li{ justify-content:flex-start; }
  .sidebar__heading{ text-align:center; }
}

.avatar-wrap{
  width:176px;
  height:176px;
  margin:0 0 24px;
  border-radius:50%;
  padding:5px;
  background:linear-gradient(135deg, var(--accent-2), #1F9C74);
  flex-shrink:0;
}
@media (max-width:920px){
  .avatar-wrap{ width:152px; height:152px; margin-inline:auto; margin-bottom:20px; }
}
.avatar{
  width:100%;
  height:100%;
  border-radius:50%;
  object-fit:cover;
  display:block;
  border:3px solid var(--sidebar-bg);
}

.sidebar__name{
  font-size:1.85rem;
  font-weight:800;
  margin-bottom:6px;
  letter-spacing:-0.01em;
}
.sidebar__role{
  font-family:var(--font-mono);
  font-size:.85rem;
  color:var(--accent-soft);
  direction:ltr;
  text-align:right;
  margin-bottom:4px;
  opacity:.85;
}
@media (max-width:920px){
  .sidebar__role{ text-align:center; }
}
.sidebar__role-fa{
  font-size:1rem;
  color:var(--sidebar-muted);
  margin-bottom:32px;
  font-weight:500;
}

.sidebar__section{ margin-bottom:30px; }
.sidebar__section:last-child{ margin-bottom:0; }

.sidebar__heading{
  font-size:.8rem;
  font-weight:700;
  color:var(--sidebar-muted);
  text-transform:uppercase;
  letter-spacing:.04em;
  margin-bottom:14px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(255,255,255,.12);
}

.contact-list{ display:flex; flex-direction:column; gap:13px; }
.contact-list li{ display:flex; align-items:center; gap:10px; font-size:.95rem; }
.contact-list__icon{
  width:26px; height:26px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  display:flex; align-items:center; justify-content:center;
  flex-shrink:0;
  color:var(--sidebar-muted);
  font-size:.7rem;
}
.contact-list a{ transition:color .15s ease; word-break:break-word; }
.contact-list a:hover{ color:#7FE0C4; }
.contact-list a.break{ font-size:.85rem; }

.pill-list{ display:flex; flex-wrap:wrap; gap:8px; }
@media (max-width:920px){ .pill-list{ justify-content:center; } }
.pill{
  font-size:.82rem;
  font-weight:600;
  padding:7px 14px;
  border-radius:100px;
  background:rgba(255,255,255,.1);
  color:var(--sidebar-ink);
}

.lang-list{ display:flex; flex-direction:column; gap:12px; }
.lang-list li{ display:flex; justify-content:space-between; font-size:.95rem; gap:16px; }
.lang-list__level{ color:var(--sidebar-muted); font-size:.88rem; }

/* ============================================================
   MAIN CONTENT
   ============================================================ */
.content{ display:flex; flex-direction:column; gap:8px; }

.block{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:34px 38px;
  margin-bottom:24px;
}
@media (max-width:640px){
  .block{ padding:24px 20px; }
}

.block__title{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:1.5rem;
  font-weight:800;
  margin-bottom:22px;
  padding-bottom:16px;
  border-bottom:2px solid var(--accent-soft);
  position:relative;
}
.block__icon{
  width:30px; height:30px;
  min-width:30px;
  border-radius:9px;
  background:var(--accent-soft);
  color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-size:1rem;
}
.block__title span:not(.block__icon){ position:relative; }
.block__title span:not(.block__icon)::after{
  content:"";
  position:absolute;
  bottom:-18px; right:0;
  width:52px; height:3px;
  background:var(--accent);
  border-radius:3px;
}

.block__subtitle{
  font-size:1.05rem;
  font-weight:700;
  margin:26px 0 14px;
  color:var(--ink-soft);
}

.about-text{ font-size:1.08rem; line-height:2.05; color:var(--ink-soft); }
.about-text strong{ color:var(--ink); font-weight:700; }

.prose{ font-size:1.02rem; line-height:2; color:var(--ink-soft); }
.prose strong{ color:var(--ink); font-weight:700; }
.prose--tight{ margin-top:8px; }

.check-list{ display:flex; flex-direction:column; gap:14px; margin-bottom:8px; }
.check-list li{
  position:relative;
  padding-inline-start:34px;
  font-size:1.02rem;
  color:var(--ink-soft);
  line-height:1.9;
}
.check-list li::before{
  content:"✓";
  position:absolute;
  inset-inline-start:0;
  top:1px;
  width:24px; height:24px;
  border-radius:50%;
  background:var(--accent-soft);
  color:var(--accent);
  font-size:.8rem;
  font-weight:700;
  display:flex; align-items:center; justify-content:center;
}

/* ---- soft-skill badges ---- */
.badge-list{ display:flex; flex-wrap:wrap; gap:10px; }
.badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:.88rem;
  font-weight:600;
  padding:9px 16px 9px 18px;
  border-radius:100px;
  background:var(--accent-soft);
  color:var(--accent-2);
  border:1px solid rgba(15,110,91,.18);
}
.badge i{
  width:7px; height:7px;
  border-radius:50%;
  background:var(--accent);
  flex-shrink:0;
}

/* ============================================================
   TIMELINE (Experience)
   ============================================================ */
.timeline{ position:relative; }
.timeline__entry{
  position:relative;
  padding-inline-start:34px;
  padding-bottom:32px;
}
.timeline__entry:last-child{ padding-bottom:0; }
.timeline__entry::before{
  content:"";
  position:absolute;
  inset-inline-start:9px;
  top:26px; bottom:0;
  width:2px;
  background:var(--border);
}
.timeline__entry:last-child::before{ display:none; }

.timeline__dot{
  position:absolute;
  inset-inline-start:0; top:5px;
  width:20px; height:20px;
  border-radius:50%;
  border:4px solid var(--accent-soft);
  background:var(--muted);
}
.timeline__dot--done{ background:var(--muted); border-color:var(--border); }

.timeline__dot--live{
  background:var(--accent);
}
.timeline__dot--live::after{
  content:"";
  position:absolute;
  inset:-4px;
  border-radius:50%;
  border:2px solid var(--accent);
  animation:pulse-ring 2s ease-out infinite;
}
@keyframes pulse-ring{
  0%   { transform:scale(.7); opacity:.9; }
  100% { transform:scale(1.9); opacity:0; }
}

.timeline__header{
  display:flex;
  justify-content:space-between;
  align-items:flex-start;
  flex-wrap:wrap;
  gap:10px 16px;
  margin-bottom:4px;
}
.timeline__header h3{
  font-size:1.15rem;
  font-weight:700;
  line-height:1.6;
}
.timeline__meta{
  font-family:var(--font-mono);
  font-size:.8rem;
  color:var(--muted);
  margin-bottom:14px;
}

.status-chip{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.74rem;
  font-weight:700;
  padding:5px 12px;
  border-radius:100px;
  white-space:nowrap;
  flex-shrink:0;
}
.status-chip--live{
  background:var(--accent-soft);
  color:var(--accent-2);
}
.status-chip--live i{
  width:7px; height:7px; border-radius:50%;
  background:var(--accent);
  animation:blink 1.6s ease-in-out infinite;
}
@keyframes blink{
  0%, 100% { opacity:1; }
  50%      { opacity:.25; }
}
.status-chip--done{
  background:#EEF0EF;
  color:var(--muted);
}
.status-chip--done i{
  width:7px; height:7px; border-radius:50%;
  background:var(--muted);
}

.muted-text{ color:var(--muted); font-weight:400; font-size:.92em; }
.inline-link{ color:var(--accent); font-size:.85em; font-weight:500; direction:ltr; display:inline-block; }
.inline-link:hover{ text-decoration:underline; }

.dash-list{ display:flex; flex-direction:column; gap:10px; }
.dash-list li{
  position:relative;
  padding-inline-start:20px;
  font-size:.98rem;
  color:var(--ink-soft);
  line-height:1.85;
}
.dash-list li::before{
  content:"–";
  position:absolute;
  inset-inline-start:0;
  color:var(--accent);
  font-weight:700;
}
.dash-list--two-col{ columns:2; column-gap:32px; }
.dash-list--two-col li{ break-inside:avoid; margin-bottom:10px; }
@media (max-width:720px){
  .dash-list--two-col{ columns:1; }
}

/* ============================================================
   TEACHING / COURSE LIST
   ============================================================ */
.course-list{ margin:20px 0; display:flex; flex-direction:column; gap:8px; }
.course-list a{
  display:flex;
  align-items:center;
  gap:12px;
  padding:14px 16px;
  border-radius:var(--radius-sm);
  background:var(--bg);
  border:1px solid var(--border);
  transition:border-color .15s ease, background .15s ease;
}
.course-list a:hover{
  border-color:var(--accent);
  background:var(--accent-soft);
}
.course-list__icon{
  width:30px; height:30px;
  min-width:30px;
  border-radius:8px;
  background:var(--accent-soft);
  color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-size:.8rem;
}
.course-list__text{
  flex:1;
  font-size:.98rem;
  color:var(--ink);
  font-weight:500;
}
.course-list__arrow{
  color:var(--muted);
  font-size:1.1rem;
}

.btn-teacher{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:10px;
  padding:13px 26px;
  border-radius:100px;
  background:var(--accent);
  color:#fff;
  font-weight:700;
  font-size:.98rem;
  transition:background .15s ease, transform .15s ease;
}
.btn-teacher svg{ width:1.1em; height:1.1em; transform:scaleX(-1); }
.btn-teacher:hover{ background:var(--accent-2); transform:translateY(-1px); }

/* ============================================================
   PROJECTS
   ============================================================ */
.project-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(300px, 1fr));
  gap:20px;
}
.project{
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px;
  transition:border-color .15s ease, box-shadow .15s ease;
}
.project:hover{
  border-color:var(--accent);
  box-shadow:0 4px 16px rgba(15,110,91,.08);
}
.project__head{
  display:flex;
  justify-content:space-between;
  align-items:center;
  margin-bottom:14px;
  gap:10px;
  flex-wrap:wrap;
}
.project__head h3{ font-size:1.1rem; font-weight:700; }
.project__link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:.8rem;
  font-weight:600;
  color:var(--accent);
  background:var(--card);
  border:1px solid var(--border);
  padding:6px 12px;
  border-radius:100px;
  white-space:nowrap;
  transition:border-color .15s ease, color .15s ease;
}
.project__link:hover{ border-color:var(--accent); color:var(--accent-2); }

.tech-badges{
  display:flex;
  flex-wrap:wrap;
  gap:6px;
  margin-bottom:16px;
}
.tech-badge{
  font-family:var(--font-mono);
  font-size:.7rem;
  font-weight:600;
  padding:5px 10px;
  border-radius:6px;
  background:var(--accent-soft);
  color:var(--accent-2);
}

.dot-list{ display:flex; flex-direction:column; gap:9px; }
.dot-list li{
  position:relative;
  padding-inline-start:18px;
  font-size:.92rem;
  color:var(--ink-soft);
  line-height:1.8;
}
.dot-list li::before{
  content:"";
  position:absolute;
  inset-inline-start:2px;
  top:.65em;
  width:5px; height:5px;
  border-radius:50%;
  background:var(--accent);
}

/* ============================================================
   TWO-COLUMN (education + tech)
   ============================================================ */
.two-col{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
}
@media (max-width:760px){
  .two-col{ grid-template-columns:1fr; }
}
.two-col .block{ margin-bottom:0; }

.edu-item h3{ font-size:1.08rem; font-weight:700; margin-bottom:8px; }

.tech-cat-list{ display:flex; flex-direction:column; gap:16px; }
.tech-cat-list li{ display:flex; align-items:flex-start; gap:12px; }
.tech-cat-list__icon{
  width:32px; height:32px;
  min-width:32px;
  border-radius:9px;
  background:var(--accent-soft);
  color:var(--accent);
  display:flex; align-items:center; justify-content:center;
  font-size:.95rem;
  margin-top:2px;
}
.tech-cat-list li div{ display:flex; flex-direction:column; gap:3px; }
.tech-cat-list li strong{ font-size:.95rem; color:var(--ink); }
.tech-cat-list li span{ font-size:.88rem; color:var(--ink-soft); line-height:1.7; }

/* ============================================================
   FOOTER
   ============================================================ */
.footer{
  text-align:center;
  padding:30px 20px 50px;
  color:var(--muted);
  font-size:.88rem;
}

/* ============================================================
   ENTRANCE ANIMATION SYSTEM
   Calm, single fade+rise on scroll — no bounce, no rotation,
   nothing playful. A restrained, editorial reveal.
   ============================================================ */
@media (prefers-reduced-motion: no-preference){

  /* sidebar settles in on load */
  .sidebar{
    opacity:0;
    transform:translateY(14px);
    animation:settle-in .8s cubic-bezier(.22,.61,.36,1) .1s forwards;
  }

  /* each content block reveals as it enters the viewport */
  .reveal{
    opacity:0;
    transform:translateY(22px);
    transition:opacity .7s cubic-bezier(.22,.61,.36,1),
               transform .7s cubic-bezier(.22,.61,.36,1);
    will-change:opacity, transform;
  }
  .reveal.is-visible{
    opacity:1;
    transform:translateY(0);
  }

  /* children of a revealed block ease in with a light stagger */
  .reveal .timeline__entry,
  .reveal .project,
  .reveal .check-list li,
  .reveal .dash-list li,
  .reveal .badge,
  .reveal .course-list li,
  .reveal .tech-cat-list li{
    opacity:0;
    transform:translateY(10px);
    transition:opacity .55s ease, transform .55s ease;
  }
  .reveal.is-visible .timeline__entry,
  .reveal.is-visible .project,
  .reveal.is-visible .check-list li,
  .reveal.is-visible .dash-list li,
  .reveal.is-visible .badge,
  .reveal.is-visible .course-list li,
  .reveal.is-visible .tech-cat-list li{
    opacity:1;
    transform:translateY(0);
  }

  .reveal.is-visible .timeline__entry:nth-child(1){ transition-delay:.05s; }
  .reveal.is-visible .timeline__entry:nth-child(2){ transition-delay:.15s; }
  .reveal.is-visible .timeline__entry:nth-child(3){ transition-delay:.25s; }
  .reveal.is-visible .timeline__entry:nth-child(4){ transition-delay:.35s; }

  .reveal.is-visible .project:nth-child(1){ transition-delay:.04s; }
  .reveal.is-visible .project:nth-child(2){ transition-delay:.1s; }
  .reveal.is-visible .project:nth-child(3){ transition-delay:.16s; }
  .reveal.is-visible .project:nth-child(4){ transition-delay:.22s; }
  .reveal.is-visible .project:nth-child(5){ transition-delay:.28s; }

  .reveal.is-visible .check-list li:nth-child(1),
  .reveal.is-visible .dash-list li:nth-child(1){ transition-delay:.03s; }
  .reveal.is-visible .check-list li:nth-child(2),
  .reveal.is-visible .dash-list li:nth-child(2){ transition-delay:.08s; }
  .reveal.is-visible .check-list li:nth-child(3),
  .reveal.is-visible .dash-list li:nth-child(3){ transition-delay:.13s; }
  .reveal.is-visible .check-list li:nth-child(4),
  .reveal.is-visible .dash-list li:nth-child(4){ transition-delay:.18s; }
  .reveal.is-visible .check-list li:nth-child(5),
  .reveal.is-visible .dash-list li:nth-child(5){ transition-delay:.23s; }

  .reveal.is-visible .badge:nth-child(1){ transition-delay:.02s; }
  .reveal.is-visible .badge:nth-child(2){ transition-delay:.06s; }
  .reveal.is-visible .badge:nth-child(3){ transition-delay:.1s; }
  .reveal.is-visible .badge:nth-child(4){ transition-delay:.14s; }
  .reveal.is-visible .badge:nth-child(5){ transition-delay:.18s; }
  .reveal.is-visible .badge:nth-child(6){ transition-delay:.22s; }

  .reveal.is-visible .course-list li:nth-child(1){ transition-delay:.03s; }
  .reveal.is-visible .course-list li:nth-child(2){ transition-delay:.07s; }
  .reveal.is-visible .course-list li:nth-child(3){ transition-delay:.11s; }
  .reveal.is-visible .course-list li:nth-child(4){ transition-delay:.15s; }
  .reveal.is-visible .course-list li:nth-child(5){ transition-delay:.19s; }
  .reveal.is-visible .course-list li:nth-child(6){ transition-delay:.23s; }

  .reveal.is-visible .tech-cat-list li:nth-child(1){ transition-delay:.03s; }
  .reveal.is-visible .tech-cat-list li:nth-child(2){ transition-delay:.08s; }
  .reveal.is-visible .tech-cat-list li:nth-child(3){ transition-delay:.13s; }
  .reveal.is-visible .tech-cat-list li:nth-child(4){ transition-delay:.18s; }
  .reveal.is-visible .tech-cat-list li:nth-child(5){ transition-delay:.23s; }

  @keyframes settle-in{
    from{ opacity:0; transform:translateY(14px); }
    to  { opacity:1; transform:translateY(0); }
  }

  /* subtle lift on hover for interactive surfaces — reinforces polish */
  .project,
  .course-list a,
  .contact-list a,
  .btn-teacher,
  .project__link{
    transition:transform .25s cubic-bezier(.22,.61,.36,1),
               border-color .2s ease, box-shadow .25s ease, color .15s ease, background .15s ease;
  }
  .project:hover{ transform:translateY(-3px); }
  .btn-teacher:hover{ transform:translateY(-2px); }
}

@media (prefers-reduced-motion: reduce){
  .sidebar, .reveal, .reveal *{ opacity:1 !important; transform:none !important; }
}