/* ===== دکمه‌ها ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border: var(--bd);
  border-radius: var(--radius);
  background: var(--paper);
  color: var(--ink);
  font-weight: 700;
  box-shadow: var(--shadow);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover {
  transform: translate(-3px, 3px);
  box-shadow: -3px 3px 0 var(--ink);
}
.btn:active {
  transform: translate(-6px, 6px);
  box-shadow: 0 0 0 var(--ink);
}
.btn-primary { background: var(--signal); }
.btn-outline { background: var(--paper); }
.btn-dark { background: var(--ink); color: var(--paper); }
.btn-sm { padding: 9px 20px; box-shadow: var(--shadow-sm); }
.btn-sm:hover { box-shadow: -2px 2px 0 var(--ink); }

/* ===== هایلایت متن ===== */
.hl {
  display: inline-block;
  padding: 0 14px;
  border: var(--bd);
  border-radius: 10px;
  box-shadow: var(--shadow-sm);
  line-height: 1.45;
}
.hl-signal { background: var(--signal); }
.hl-cool   { background: var(--cool); color: var(--paper); }
.hl-accent { background: var(--accent); }

/* ===== ناوبری ===== */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--paper);
  border-bottom: var(--bd);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-block: 14px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
  font-size: 1.25rem;
  letter-spacing: -0.02em;
}
.brand-inverse { color: var(--paper); }
.brand-mark { flex-shrink: 0; }
.nav-links {
  display: flex;
  align-items: center;
  gap: 30px;
  font-weight: 700;
}
.nav-links a:not(.btn) { padding-block: 4px; border-bottom: 3px solid transparent; }
.nav-links a:not(.btn):hover { border-bottom-color: var(--ink); }
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  width: 26px;
  height: 3px;
  background: var(--ink);
  border-radius: 2px;
}

/* ===== سکشن عمومی ===== */
section { padding-block: 88px; }

.section-head {
  text-align: center;
  margin-bottom: 52px;
}
.section-head .section-desc { margin-inline: auto; }
.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  margin-bottom: 16px;
}
.section-desc { color: #4a4840; }

/* ===== هیرو ===== */
.hero { padding-top: 56px; }
.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  align-items: center;
  gap: 48px;
}
.hero-title {
  font-size: clamp(2rem, 4.4vw, 3.3rem);
  margin-bottom: 26px;
}
.hero-desc { margin-bottom: 34px; max-width: 50ch; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-media { display: flex; justify-content: center; }
.avatar-card {
  width: 100%;
  max-width: 330px;
  aspect-ratio: 1 / 1;
  background: var(--accent);
  border: var(--bd);
  border-radius: 26px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  display: flex;
  align-items: flex-end;
  justify-content: center;
  padding-top: 18px;
}
.avatar-svg { width: 92%; height: auto; }

/* ===== مارکی ===== */
.marquee {
  padding-block: 0;
  margin-block: 26px 84px;
  background: var(--ink);
  border-block: var(--bd);
  transform: rotate(-3deg);
  overflow: hidden;
  direction: ltr;
}
.marquee-track {
  display: flex;
  width: max-content;
  direction: ltr;
  animation: marquee-scroll 30s linear infinite;
}
.marquee-list {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 18px 18px;
  white-space: nowrap;
  flex-shrink: 0;
}
.marquee-list li {
  color: var(--paper);
  font-weight: 700;
  font-size: 1.35rem;
}
.marquee-list .dot { color: var(--accent); }
@keyframes marquee-scroll {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ===== گرید خدمات ===== */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.card {
  background: var(--paper);
  border: var(--bd);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.15s ease;
}
.card:hover { transform: scale(1.02); }
.card-visual {
  background: var(--surface);
  border-bottom: var(--bd);
  padding: 18px 22px;
}
.card-visual svg { width: 100%; height: auto; display: block; }
.card-body { padding: 24px 26px 28px; }
.card-body h3 { font-size: 1.15rem; margin-bottom: 10px; }
.card-body p { color: #4a4840; font-size: 0.97rem; }

.card-accent { background: var(--accent); }
.card-accent .card-body {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  height: 100%;
}
.card-accent .card-mark { width: 74px; height: auto; margin-bottom: 4px; }
.card-accent p { color: var(--ink); }
.card-accent .btn { margin-top: auto; }

/* ===== درباره ===== */
.about-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
}
.about-grid-single {
  grid-template-columns: 1fr;
  max-width: 720px;
  text-align: center;
}
.about-grid-single .stat-list { justify-content: center; }
.about-grid-single .hero-actions,
.about-grid-single .btn { margin-inline: auto; }
.about-text .section-title { margin-bottom: 18px; }
.stat-list { display: flex; gap: 44px; margin: 34px 0 32px; }
.stat-num {
  display: block;
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.2;
}
.stat-label { color: #4a4840; font-weight: 700; }

/* ===== نمونه‌کارها ===== */
.portfolio-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 28px;
}
.pf-card {
  background: var(--paper);
  border: var(--bd);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  transition: transform 0.15s ease;
}
.pf-card:hover { transform: scale(1.02); }
.pf-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}
.pf-num {
  font-size: 1.7rem;
  font-weight: 900;
  line-height: 1;
  background: var(--signal);
  border: var(--bd);
  border-radius: 10px;
  padding: 6px 14px;
}
.pf-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.pf-card p { color: #4a4840; }
.tag {
  display: inline-block;
  padding: 5px 16px;
  border: 3px solid var(--ink);
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.85rem;
  background: var(--cool);
  color: var(--paper);
}

/* ===== تماس ===== */
.contact { background: var(--ink); }
.contact-card {
  position: relative;
  background: var(--paper);
  border: var(--bd);
  border-radius: 26px;
  box-shadow: var(--shadow-lg);
  padding: 44px 44px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
}
.contact-badge {
  position: absolute;
  top: -34px;
  inset-inline-start: 44px;
  width: 68px;
  height: 68px;
  border-radius: 50%;
  background: var(--cool);
  border: var(--bd);
  display: grid;
  place-items: center;
}
.contact-badge svg { width: 34px; height: auto; }
.contact-copy .section-title { margin-bottom: 10px; }
.contact-copy p { color: #4a4840; }
.contact-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ===== فوتر ===== */
.footer {
  background: var(--ink);
  border-top: var(--bd);
  padding-block: 34px;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 22px;
  color: var(--paper);
}
.footer-links { display: flex; gap: 26px; font-weight: 700; }
.footer-links a:hover { color: var(--accent); }
.footer-copy { color: #9a988f; font-size: 0.9rem; }

/* ===== ریسپانسیو ===== */
@media (max-width: 1024px) {
  .card-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-media { order: -1; }
  .about-grid { grid-template-columns: 1fr; gap: 44px; }
  .contact-card { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 640px) {
  :root {
    --shadow:    -4px 4px 0 var(--ink);
    --shadow-lg: -6px 6px 0 var(--ink);
    --shadow-sm: -3px 3px 0 var(--ink);
  }
  section { padding-block: 60px; }
  .hero { padding-top: 40px; }
  .hero-title { font-size: 1.85rem; }
  .card-grid, .portfolio-grid { grid-template-columns: 1fr; }
  .stat-list { gap: 30px; }
  .about-svg { filter: drop-shadow(-6px 6px 0 var(--ink)); }
  .marquee-list li { font-size: 1.1rem; }
  .contact-card { padding: 40px 24px 32px; }
  .contact-badge { inset-inline-start: 24px; width: 58px; height: 58px; top: -30px; }
  .nav-links {
    position: fixed;
    inset-inline-start: 0;
    top: 64px;
    width: 100%;
    background: var(--paper);
    border-bottom: var(--bd);
    flex-direction: column;
    align-items: flex-start;
    padding: 22px;
    gap: 18px;
    transform: translateY(-140%);
    transition: transform 0.2s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-toggle { display: flex; }
}