/* ===== Reset & Base ===== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --primary: #006D5B;
  --primary-light: #00997F;
  --primary-dark: #004D40;
  --primary-glow: rgba(0, 109, 91, 0.35);
  --bg: #0A0A0A;
  --bg-elevated: #111111;
  --bg-card: rgba(255, 255, 255, 0.03);
  --border: rgba(255, 255, 255, 0.06);
  --text: #EDEDED;
  --text-secondary: #888888;
  --text-muted: #555555;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font: 'Cairo', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  overflow-x: hidden;
}

/* ===== Dot Pattern Background ===== */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px);
  background-size: 24px 24px;
  pointer-events: none;
  z-index: 0;
}

/* ===== Typography ===== */
h1, h2, h3, h4 {
  font-weight: 600;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

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

/* ===== Utility ===== */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
  z-index: 1;
}

.section {
  padding: 120px 0;
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.8rem;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--primary-light);
  margin-bottom: 16px;
}

.section-label::before {
  content: '';
  width: 20px;
  height: 1px;
  background: var(--primary);
}

.section-title {
  font-size: clamp(2rem, 5vw, 3rem);
  margin-bottom: 20px;
  color: var(--text);
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--text-secondary);
  max-width: 560px;
  line-height: 1.7;
}

/* ===== Reveal Animation ===== */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s cubic-bezier(0.4, 0, 0.2, 1), transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* stagger children */
.reveal-stagger .reveal:nth-child(1) { transition-delay: 0s; }
.reveal-stagger .reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal-stagger .reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal-stagger .reveal:nth-child(4) { transition-delay: 0.3s; }

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0 24px;
  transition: background var(--transition), border-color var(--transition), backdrop-filter var(--transition);
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.8);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom-color: var(--border);
}

.navbar-inner {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 1.2rem;
  letter-spacing: -0.02em;
}

.logo svg {
  width: 32px;
  height: 32px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: color var(--transition);
  font-weight: 400;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 20px;
  border-radius: 8px;
  font-size: 0.875rem;
  font-weight: 500;
  background: var(--primary);
  color: #fff !important;
  transition: background var(--transition), box-shadow var(--transition);
}

.nav-cta:hover {
  background: var(--primary-light);
  box-shadow: 0 0 24px var(--primary-glow);
}

/* ===== Language Toggle ===== */
.lang-toggle {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 6px 14px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-secondary);
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition);
  letter-spacing: 0.04em;
  backdrop-filter: blur(8px);
  margin-inline-start: 12px;
}

.lang-toggle:hover {
  border-color: var(--primary);
  color: var(--primary-light);
  background: rgba(0, 109, 91, 0.08);
}

/* Mobile nav toggle */
.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
  border-radius: 2px;
  transition: var(--transition);
}

/* ===== Hero ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: 72px;
  position: relative;
  overflow: hidden;
}

.hero-glow {
  position: absolute;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, var(--primary-glow) 0%, transparent 70%);
  top: 10%;
  right: -10%;
  pointer-events: none;
  animation: glow-pulse 6s ease-in-out infinite alternate;
}

@keyframes glow-pulse {
  0% { opacity: 0.4; transform: scale(1); }
  100% { opacity: 0.7; transform: scale(1.1); }
}

.hero-content {
  max-width: 720px;
  position: relative;
  z-index: 1;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 14px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  backdrop-filter: blur(8px);
}

.hero-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
  animation: dot-pulse 2s ease-in-out infinite;
}

@keyframes dot-pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.3; }
}

.hero h1 {
  font-size: clamp(2.8rem, 7vw, 4.5rem);
  line-height: 1.08;
  margin-bottom: 24px;
  letter-spacing: -0.04em;
}

.hero h1 .accent {
  color: var(--primary-light);
}

.hero p {
  font-size: 1.15rem;
  color: var(--text-secondary);
  max-width: 520px;
  line-height: 1.7;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
  font-family: var(--font);
}

.btn-primary {
  background: var(--primary);
  color: #fff;
}

.btn-primary:hover {
  background: var(--primary-light);
  box-shadow: 0 0 32px var(--primary-glow);
  transform: translateY(-1px);
}

.btn-secondary {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:hover {
  border-color: rgba(255, 255, 255, 0.15);
  background: rgba(255, 255, 255, 0.04);
  transform: translateY(-1px);
}

.btn-arrow {
  transition: transform var(--transition);
}

.btn:hover .btn-arrow {
  transform: translateX(3px);
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 56px;
}

.service-card {
  padding: 36px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(0, 109, 91, 0.06) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  border-color: rgba(0, 109, 91, 0.25);
  transform: translateY(-2px);
}

.service-card:hover::before {
  opacity: 1;
}

.service-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(0, 109, 91, 0.1);
  border: 1px solid rgba(0, 109, 91, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  position: relative;
  z-index: 1;
}

.service-icon svg {
  width: 22px;
  height: 22px;
  stroke: var(--primary-light);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.service-card h3 {
  font-size: 1.15rem;
  margin-bottom: 12px;
  position: relative;
  z-index: 1;
}

.service-card p {
  font-size: 0.925rem;
  color: var(--text-secondary);
  line-height: 1.65;
  position: relative;
  z-index: 1;
}

/* ===== About ===== */
.about {
  border-top: 1px solid var(--border);
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  margin-top: 56px;
}

.about-text p {
  font-size: 1rem;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 20px;
}

.about-stats {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.stat-card {
  padding: 28px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  backdrop-filter: blur(8px);
}

.stat-number {
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--primary-light);
  letter-spacing: -0.03em;
  margin-bottom: 4px;
}

.stat-label {
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* ===== Tech Stack ===== */
.tech {
  border-top: 1px solid var(--border);
}

.tech-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 16px;
  margin-top: 56px;
}

.tech-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  padding: 28px 16px;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition);
  cursor: default;
}

.tech-item:hover {
  border-color: rgba(0, 109, 91, 0.2);
  background: rgba(0, 109, 91, 0.04);
  transform: translateY(-2px);
}

.tech-item svg {
  width: 32px;
  height: 32px;
  opacity: 0.7;
}

.tech-item span {
  font-size: 0.8rem;
  color: var(--text-secondary);
  font-weight: 500;
}

/* ===== Contact ===== */
.contact {
  border-top: 1px solid var(--border);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  margin-top: 56px;
}

.contact-info h3 {
  font-size: 1.6rem;
  margin-bottom: 16px;
}

.contact-info p {
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 32px;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  color: var(--text-secondary);
  font-size: 0.925rem;
  transition: color var(--transition);
}

.contact-link:hover {
  color: var(--primary-light);
}

.contact-link svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  color: var(--text-muted);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.form-group input,
.form-group textarea {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-family: var(--font);
  font-size: 0.925rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-muted);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0, 109, 91, 0.12);
}

.form-group textarea {
  resize: vertical;
  min-height: 120px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.btn-submit {
  align-self: flex-start;
  cursor: pointer;
  margin-top: 4px;
}

/* ===== Footer ===== */
.footer {
  border-top: 1px solid var(--border);
  padding: 48px 0;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 24px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.footer-logo {
  height: 48px;
  width: 48px;
  object-fit: contain;
  border-radius: 6px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links {
  display: flex;
  gap: 20px;
}

.footer-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  transition: all var(--transition);
}

.footer-links a:hover {
  border-color: var(--primary);
  background: rgba(0, 109, 91, 0.08);
}

.footer-links a svg {
  width: 16px;
  height: 16px;
  fill: var(--text-secondary);
  transition: fill var(--transition);
}

.footer-links a:hover svg {
  fill: var(--primary-light);
}

/* ===== RTL Support ===== */
html[dir="rtl"] {
  letter-spacing: 0;
}

html[dir="rtl"] h1,
html[dir="rtl"] h2,
html[dir="rtl"] h3,
html[dir="rtl"] h4 {
  letter-spacing: 0;
}

html[dir="rtl"] .hero h1 {
  letter-spacing: 0;
}

html[dir="rtl"] .section-label {
  letter-spacing: 0.04em;
}

html[dir="rtl"] .section-label::before {
  order: 1;
}

html[dir="rtl"] .hero-glow {
  right: auto;
  left: -10%;
}

html[dir="rtl"] .btn:hover .btn-arrow {
  transform: translateX(-3px);
}

html[dir="rtl"] .btn-arrow {
  transform: scaleX(-1);
}

html[dir="rtl"] .btn-submit {
  align-self: flex-end;
}

html[dir="rtl"] .service-card::before {
  background: linear-gradient(-135deg, rgba(0, 109, 91, 0.06) 0%, transparent 60%);
}

html[dir="rtl"] .form-group label {
  letter-spacing: 0;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .services-grid {
    grid-template-columns: 1fr;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .section {
    padding: 80px 0;
  }
}

@media (max-width: 768px) {
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    background: rgba(10, 10, 10, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--transition), visibility var(--transition);
  }

  .nav-links.open {
    opacity: 1;
    visibility: visible;
  }

  .nav-links a {
    font-size: 1.1rem;
  }

  .nav-toggle {
    display: block;
  }

  .nav-toggle.active span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }
  .nav-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  .nav-toggle.active span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero h1 {
    font-size: clamp(2.2rem, 8vw, 3.2rem);
  }

  .form-row {
    grid-template-columns: 1fr;
  }

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

  .tech-grid {
    grid-template-columns: repeat(3, 1fr);
  }

  .lang-toggle {
    margin-inline-start: auto;
    margin-inline-end: 12px;
  }
}

@media (max-width: 480px) {
  .container {
    padding: 0 16px;
  }

  .service-card {
    padding: 28px 24px;
  }

  .about-stats {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

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

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  html[dir="rtl"] .footer-inner {
    align-items: flex-end;
  }

  .footer-left {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  html[dir="rtl"] .footer-left {
    align-items: flex-end;
  }
}