:root {
  --gold: #f5b025;
  --gold-soft: #f8c14d;
  --gold-deep: #d4920a;
  --navy: #0a1628;
  --navy-deep: #050d18;
  --navy-mid: #102038;
  --navy-card: #13233d;
  --cyan: #00a3e0;
  --text: #f4f7fb;
  --muted: #9aabbd;
  --border: rgba(245, 176, 37, 0.18);
  --glass: rgba(10, 22, 40, 0.72);
  --radius: 1.25rem;
  --shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  --glow: 0 0 40px rgba(245, 176, 37, 0.2);
}

.light {
  --navy: #f4f7fb;
  --navy-deep: #e8eef6;
  --navy-mid: #ffffff;
  --navy-card: #ffffff;
  --text: #0a1628;
  --muted: #5b6b7c;
  --border: rgba(10, 22, 40, 0.1);
  --glass: rgba(255, 255, 255, 0.85);
  --shadow: 0 16px 40px rgba(10, 22, 40, 0.1);
  --glow: 0 0 30px rgba(245, 176, 37, 0.15);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Vazirmatn", system-ui, sans-serif;
  background: var(--navy-deep);
  color: var(--text);
  overflow-x: hidden;
  transition: background 0.35s ease, color 0.35s ease;
}

body.loading {
  overflow: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

img {
  max-width: 100%;
  display: block;
}

/* Loader */
#loader {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: grid;
  place-items: center;
  background: var(--navy-deep);
}

.loader-inner {
  text-align: center;
}

.loader-logo {
  width: 84px;
  height: 84px;
  border-radius: 1rem;
  object-fit: cover;
  margin: 0 auto 1.25rem;
  box-shadow: var(--glow);
  animation: pulse 1.4s ease-in-out infinite;
}

.loader-bar {
  width: 140px;
  height: 3px;
  margin: 0 auto;
  border-radius: 99px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.loader-bar-fill {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--gold), var(--gold-soft));
  transition: width 0.12s linear;
}

.loader-text {
  margin-top: 0.85rem;
  color: var(--muted);
  font-size: 0.8rem;
}

@keyframes pulse {
  0%,
  100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.04);
  }
}

#scroll-progress {
  position: fixed;
  top: 0;
  right: 0;
  height: 3px;
  width: 0;
  z-index: 9998;
  background: linear-gradient(270deg, var(--gold), var(--cyan));
}

/* Navbar */
#navbar {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  border-bottom: 1px solid transparent;
}

#navbar.nav-scrolled {
  background: rgba(5, 13, 24, 0.9);
  backdrop-filter: blur(18px);
  border-bottom-color: var(--border);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.25);
}

.light #navbar.nav-scrolled {
  background: rgba(255, 255, 255, 0.92);
}

.nav-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  height: 4.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  min-width: 0;
}

.brand img {
  width: 2.6rem;
  height: 2.6rem;
  border-radius: 0.75rem;
  object-fit: cover;
  border: 1px solid rgba(245, 176, 37, 0.35);
}

.brand-text strong {
  display: block;
  font-size: 0.92rem;
  line-height: 1.25;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  max-width: 14rem;
}

.brand-text span {
  display: block;
  font-size: 0.72rem;
  color: var(--gold);
}

.nav-links {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  position: relative;
  transition: color 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--gold);
}

.nav-links a::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -0.35rem;
  width: 0;
  height: 2px;
  background: var(--gold);
  transition: width 0.25s ease;
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 100%;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.icon-btn,
.menu-btn {
  width: 2.6rem;
  height: 2.6rem;
  border: 1px solid var(--border);
  border-radius: 0.85rem;
  background: transparent;
  color: var(--text);
  display: grid;
  place-items: center;
  cursor: pointer;
  transition: 0.2s ease;
}

.icon-btn:hover,
.menu-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: 999px;
  padding: 0.85rem 1.35rem;
  font-weight: 700;
  font-size: 0.92rem;
  border: none;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn-gold {
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #111;
  box-shadow: 0 8px 24px rgba(245, 176, 37, 0.35);
}

.btn-outline {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.btn-cta-nav {
  display: none;
}

#mobile-menu {
  display: none;
  background: rgba(5, 13, 24, 0.97);
  border-top: 1px solid var(--border);
  padding: 0.75rem 1rem 1rem;
}

#mobile-menu.open {
  display: block;
}

#mobile-menu a {
  display: block;
  padding: 0.85rem 1rem;
  border-radius: 0.85rem;
  color: var(--text);
}

#mobile-menu a:hover {
  background: rgba(245, 176, 37, 0.08);
  color: var(--gold);
}

/* Hero Slider */
.hero-slider {
  position: relative;
  width: 100%;
  height: 100vh;
  height: 100svh;
  height: 100dvh;
  min-height: 100vh;
  min-height: 100svh;
  background: var(--navy-deep);
  overflow: hidden;
}

.slides {
  position: relative;
  width: 100%;
  height: 100%;
  min-height: inherit;
}

.slide {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.8s ease, visibility 0.8s ease;
  z-index: 1;
}

.slide.active {
  opacity: 1;
  visibility: visible;
  z-index: 2;
}

.slide-media {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: hidden;
}

.slide-media picture {
  position: absolute;
  inset: 0;
  display: block;
  width: 100%;
  height: 100%;
}

.slide-media img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  max-width: none;
  object-fit: cover;
  object-position: center center;
}

.slide-shade {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(180deg, rgba(5, 13, 24, 0.55) 0%, rgba(5, 13, 24, 0.25) 35%, rgba(5, 13, 24, 0.78) 100%),
    linear-gradient(90deg, rgba(5, 13, 24, 0.78) 0%, rgba(5, 13, 24, 0.2) 55%, rgba(5, 13, 24, 0.55) 100%);
}

.slide-content {
  position: relative;
  z-index: 3;
  max-width: 1200px;
  margin: 0 auto;
  width: 100%;
  height: 100%;
  min-height: 100%;
  padding: 6.5rem 1rem 5.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1rem;
}

.slide-kicker {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  width: fit-content;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  background: rgba(245, 176, 37, 0.12);
  border: 1px solid rgba(245, 176, 37, 0.35);
  color: var(--gold);
  font-size: 0.8rem;
  font-weight: 600;
}

.slide-title {
  margin: 0;
  font-size: clamp(1.9rem, 6vw, 3.6rem);
  line-height: 1.2;
  font-weight: 900;
  max-width: 16ch;
  text-shadow: 0 8px 30px rgba(0, 0, 0, 0.45);
}

.slide-title em {
  font-style: normal;
  color: var(--gold);
}

.slide-desc {
  margin: 0;
  max-width: 38rem;
  color: rgba(244, 247, 251, 0.88);
  font-size: 0.98rem;
  line-height: 1.8;
}

.slide-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 0.35rem;
}

.slide-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.65rem;
  max-width: 28rem;
  margin-top: 0.5rem;
}

.meta-card {
  background: rgba(5, 13, 24, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.1);
  backdrop-filter: blur(10px);
  border-radius: 1rem;
  padding: 0.85rem 0.6rem;
  text-align: center;
}

.meta-card strong {
  display: block;
  color: var(--gold);
  font-size: 1.2rem;
}

.meta-card span {
  display: block;
  margin-top: 0.2rem;
  color: var(--muted);
  font-size: 0.72rem;
}

.slider-controls {
  position: absolute;
  inset-inline: 0;
  bottom: 1.25rem;
  z-index: 5;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.slider-arrows {
  display: flex;
  gap: 0.5rem;
}

.slider-btn {
  width: 2.7rem;
  height: 2.7rem;
  border-radius: 999px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(5, 13, 24, 0.55);
  color: #fff;
  display: grid;
  place-items: center;
  cursor: pointer;
  backdrop-filter: blur(8px);
  transition: 0.2s ease;
}

.slider-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

.slider-dots {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
  justify-content: center;
}

.dot {
  width: 0.55rem;
  height: 0.55rem;
  border-radius: 999px;
  border: 0;
  background: rgba(255, 255, 255, 0.35);
  cursor: pointer;
  padding: 0;
  transition: 0.25s ease;
}

.dot.active {
  width: 1.5rem;
  background: var(--gold);
}

.slider-progress {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 3px;
  background: rgba(255, 255, 255, 0.08);
  z-index: 6;
}

.slider-progress span {
  display: block;
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--gold), var(--cyan));
}

.expand-btn {
  background: rgba(5, 13, 24, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.18);
  color: #fff;
  border-radius: 999px;
  padding: 0.55rem 0.95rem;
  font-size: 0.78rem;
  cursor: pointer;
  backdrop-filter: blur(8px);
}

.expand-btn:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* Sections */
.section {
  padding: 5rem 0;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 1rem;
}

.section-head {
  text-align: center;
  margin-bottom: 2.75rem;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--gold);
  background: rgba(245, 176, 37, 0.08);
  font-size: 0.8rem;
  font-weight: 600;
  margin-bottom: 0.9rem;
}

.section-head h2 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.7rem, 4vw, 2.6rem);
  font-weight: 900;
}

.section-head p {
  margin: 0 auto;
  max-width: 40rem;
  color: var(--muted);
  line-height: 1.8;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.service-card {
  position: relative;
  overflow: hidden;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--navy-card);
  min-height: 250px;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--glow);
  border-color: rgba(245, 176, 37, 0.45);
}

.service-card img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
  opacity: 0.35;
  transition: transform 0.5s ease, opacity 0.3s ease;
}

.service-card:hover img {
  transform: scale(1.06);
  opacity: 0.48;
}

.service-body {
  position: relative;
  z-index: 2;
  height: 100%;
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(180deg, transparent 10%, rgba(5, 13, 24, 0.92) 75%);
}

.service-body .num {
  position: absolute;
  top: 1rem;
  left: 1rem;
  font-size: 2rem;
  font-weight: 900;
  color: rgba(245, 176, 37, 0.18);
}

.service-body h3 {
  margin: 0 0 0.45rem;
  font-size: 1.15rem;
}

.service-body p {
  margin: 0;
  color: var(--muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* Process */
.process {
  background: var(--navy);
}

.process-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.process-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem;
  text-align: center;
  transition: 0.25s ease;
}

.process-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 176, 37, 0.4);
}

.step {
  width: 3.2rem;
  height: 3.2rem;
  margin: 0 auto 1rem;
  border-radius: 1rem;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.2rem;
  background: linear-gradient(135deg, var(--gold), var(--gold-deep));
  color: #111;
}

.process-card h3 {
  margin: 0 0 0.5rem;
}

.process-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* Brands */
.brands {
  overflow: hidden;
}

.brand-marquee {
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}

.brand-track {
  display: flex;
  width: max-content;
  gap: 0.85rem;
  animation: marquee 28s linear infinite;
}

.brand-chip {
  white-space: nowrap;
  padding: 0.8rem 1.25rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--navy-card);
  color: var(--muted);
  font-weight: 600;
  font-size: 0.9rem;
}

@keyframes marquee {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(-50%);
  }
}

[dir="rtl"] .brand-track {
  animation-name: marquee-rtl;
}

@keyframes marquee-rtl {
  from {
    transform: translateX(0);
  }
  to {
    transform: translateX(50%);
  }
}

/* About */
.about-grid {
  display: grid;
  gap: 1.25rem;
}

.about-card,
.contact-card,
.engineer-card {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
}

.about-card p,
.engineer-card p {
  color: var(--muted);
  line-height: 1.9;
}

.stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.75rem;
  margin-top: 1.25rem;
}

.stat {
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
  text-align: center;
  background: rgba(245, 176, 37, 0.05);
}

.stat strong {
  display: block;
  color: var(--gold);
  font-size: 1.7rem;
}

.stat span {
  color: var(--muted);
  font-size: 0.8rem;
}

.engineer-card {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.engineer-card img {
  width: 4.2rem;
  height: 4.2rem;
  border-radius: 1rem;
  object-fit: cover;
  border: 1px solid rgba(245, 176, 37, 0.35);
}

.feature-mini {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.75rem;
}

.feature-mini div {
  background: var(--navy-card);
  border: 1px solid var(--border);
  border-radius: 1rem;
  padding: 1rem;
}

.feature-mini strong {
  display: block;
  margin-bottom: 0.25rem;
}

.feature-mini span {
  color: var(--muted);
  font-size: 0.8rem;
}

/* Contact */
.contact {
  background: var(--navy);
}

.contact-grid {
  display: grid;
  gap: 0.85rem;
}

.contact-card {
  text-align: center;
  transition: 0.25s ease;
}

.contact-card:hover {
  transform: translateY(-4px);
  border-color: rgba(245, 176, 37, 0.45);
  box-shadow: var(--glow);
}

.contact-card .icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto 0.85rem;
  border-radius: 0.9rem;
  display: grid;
  place-items: center;
  background: rgba(245, 176, 37, 0.1);
  color: var(--gold);
}

.contact-card strong {
  display: block;
  margin-bottom: 0.3rem;
}

.contact-card span {
  color: var(--gold);
  font-weight: 700;
  direction: ltr;
  display: inline-block;
}

.address-card {
  margin-top: 1rem;
  text-align: center;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 1.75rem 0;
  background: var(--navy-deep);
}

.footer-row {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
  align-items: center;
  text-align: center;
  color: var(--muted);
  font-size: 0.85rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.footer-brand img {
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.7rem;
  object-fit: cover;
}

.footer-brand strong {
  display: block;
  color: var(--text);
  font-size: 0.88rem;
}

/* Floating WhatsApp */
.wa-float {
  position: fixed;
  left: 1rem;
  bottom: 1rem;
  z-index: 90;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 1rem;
  background: #22c55e;
  color: #fff;
  display: grid;
  place-items: center;
  box-shadow: 0 10px 30px rgba(34, 197, 94, 0.4);
  animation: floatPulse 2.4s ease-in-out infinite;
}

@keyframes floatPulse {
  0%,
  100% {
    box-shadow: 0 8px 20px rgba(34, 197, 94, 0.35);
  }
  50% {
    box-shadow: 0 10px 28px rgba(34, 197, 94, 0.55), 0 0 0 8px rgba(34, 197, 94, 0.12);
  }
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgba(0, 0, 0, 0.9);
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
}

.lightbox.open {
  display: flex;
}

.lightbox img {
  max-width: min(1100px, 96vw);
  max-height: 88vh;
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
}

.lightbox-close {
  position: absolute;
  top: 1rem;
  left: 1rem;
  width: 2.6rem;
  height: 2.6rem;
  border: 0;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #fff;
  cursor: pointer;
  font-size: 1.3rem;
}

/* Reveal */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.in {
  opacity: 1;
  transform: none;
}

@media (max-width: 767px) {
  .hero-slider {
    height: 100vh;
    height: 100svh;
    height: 100dvh;
  }

  .slide-media img {
    object-fit: cover;
    object-position: center top;
  }

  .slide-desc {
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
  }

  .slide-meta {
    max-width: 100%;
  }

  .slide-title {
    font-size: clamp(1.55rem, 7vw, 2.1rem);
    max-width: 100%;
  }
}

@supports (-webkit-touch-callout: none) {
  .hero-slider {
    min-height: -webkit-fill-available;
  }
}

@media (min-width: 640px) {
  .brand-text strong {
    max-width: none;
  }

  .btn-cta-nav {
    display: inline-flex;
  }

  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .contact-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .slide-content {
    justify-content: center;
    padding-bottom: 7rem;
  }
}

@media (min-width: 1024px) {
  .nav-links {
    display: flex;
  }

  .menu-btn {
    display: none;
  }

  .nav-shell {
    height: 5rem;
  }

  .services-grid {
    grid-template-columns: repeat(5, 1fr);
  }

  .service-card {
    min-height: 280px;
  }

  .process-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .about-grid {
    grid-template-columns: 1.2fr 0.8fr;
    gap: 1.5rem;
  }

  .contact-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .footer-row {
    flex-direction: row;
    justify-content: space-between;
    text-align: right;
  }

  .slide-shade {
    background:
      linear-gradient(90deg, rgba(5, 13, 24, 0.72) 0%, rgba(5, 13, 24, 0.18) 48%, rgba(5, 13, 24, 0.45) 100%),
      linear-gradient(180deg, rgba(5, 13, 24, 0.35) 0%, transparent 40%, rgba(5, 13, 24, 0.55) 100%);
  }

  .slide-content {
    max-width: 48%;
    margin-right: auto;
    margin-left: 0;
    padding-right: max(1rem, calc((100vw - 1200px) / 2 + 1rem));
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition-duration: 0.01ms !important;
  }

  .brand-track {
    animation: none;
  }

  .reveal {
    opacity: 1;
    transform: none;
  }
}