:root {
  --primary: #2563EB;
  --primary-dark: #1E3A8A;
  --accent: #0EA5E9;
  --bg: #FFFFFF;
  --bg-alt: #F8FAFC;
  --bg-dark: #0F172A;
  --text: #1E293B;
  --text-muted: #64748B;
  --text-light: #E2E8F0;
  --border: #E2E8F0;
  --radius: 14px;
  --shadow: 0 4px 16px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 20px 40px rgba(15, 23, 42, 0.10);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

h1, h2, h3 { line-height: 1.2; margin: 0 0 16px; color: var(--text); font-weight: 800; }
h1 { font-size: clamp(2.2rem, 4vw, 3.2rem); }
h2 { font-size: clamp(1.8rem, 3vw, 2.4rem); }
h3 { font-size: 1.2rem; margin-bottom: 8px; }
p { margin: 0 0 16px; color: var(--text-muted); }
a { text-decoration: none; color: inherit; }
ul { list-style: none; padding: 0; margin: 0; }

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 12px;
}
.eyebrow--light { color: var(--accent); }

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 28px;
  border-radius: 10px;
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn--primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(37, 99, 235, 0.25);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 12px 24px rgba(37, 99, 235, 0.32); }
.btn--outline {
  background: transparent;
  border-color: var(--border);
  color: var(--text);
}
.btn--outline:hover { border-color: var(--primary); color: var(--primary); }
.btn--sm { padding: 10px 20px; font-size: 0.9rem; }
.btn--full { width: 100%; }

/* Header */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 16px;
  padding-bottom: 16px;
}
.logo { display: flex; align-items: center; gap: 10px; margin-right: 40px; flex-shrink: 0; }
.nav-cta { margin-left: auto; }
.logo__text { font-size: 1.2rem; font-weight: 500; color: var(--text); }
.logo__text strong { font-weight: 800; color: var(--primary); }
.logo__text--footer { color: var(--text-light); }
.logo__text--footer strong { color: #fff; }

.nav { display: flex; gap: 22px; white-space: nowrap; }
.nav a {
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.15s ease;
}
.nav a:hover { color: var(--primary); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
}

/* Hero */
.hero { padding: 80px 0 60px; overflow: hidden; }
.hero__inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 48px;
  align-items: center;
}
.hero__subtitle { font-size: 1.1rem; max-width: 520px; }
.hero__actions { display: flex; gap: 16px; margin-top: 28px; flex-wrap: wrap; }
.hero-svg { width: 100%; height: auto; filter: drop-shadow(var(--shadow-lg)); }

/* Section generic */
.section { padding: 88px 0; }
.section--alt { background: var(--bg-alt); }
.section--dark { background: var(--bg-dark); color: #fff; }
.section--dark p { color: #94A3B8; }
.section-head { max-width: 640px; margin: 0 auto 48px; text-align: center; }
.section-sub { font-size: 1.05rem; }

/* About */
.about { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
.about__graphic svg { width: 100%; height: auto; }
.stats { display: flex; gap: 40px; margin-top: 24px; }
.stat { display: flex; flex-direction: column; }
.stat__number { font-size: 2rem; font-weight: 800; color: var(--primary); }
.stat__label { font-size: 0.9rem; color: var(--text-muted); }

/* Mission / Vision */
.mv-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 28px; }
.mv-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.mv-icon {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--bg-alt);
  border-radius: 12px;
  margin-bottom: 20px;
}

/* Services */
.services-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.service-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.service-icon {
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: #EFF6FF;
  border-radius: 10px;
  margin-bottom: 16px;
}
.service-card p { font-size: 0.92rem; margin-bottom: 0; }

/* Projects */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.project-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}
.project-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.project-card__cover { height: 160px; }
.project-card__body { padding: 24px; }
.project-card__body p { font-size: 0.92rem; }
.tags { display: flex; gap: 8px; flex-wrap: wrap; }
.tags span {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: #EFF6FF;
  padding: 4px 10px;
  border-radius: 999px;
}
.project-card__links {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 16px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.project-card__links a {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
}
.project-card__links a:hover { text-decoration: underline; }

/* Testimonials */
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--bg-alt);
  border-radius: var(--radius);
  padding: 28px;
}
.testimonial-quote {
  font-size: 0.98rem;
  color: var(--text);
  margin-bottom: 20px;
}
.testimonial-author { display: flex; align-items: center; gap: 12px; }
.testimonial-author strong { display: block; font-size: 0.92rem; }
.testimonial-author span { font-size: 0.82rem; color: var(--text-muted); }
.avatar {
  width: 42px; height: 42px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700;
  font-size: 0.85rem;
  flex-shrink: 0;
}

/* Contact */
.contact {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
.contact h2 { color: #fff; }
.contact-list { margin-top: 28px; display: flex; flex-direction: column; gap: 16px; }
.contact-list li { display: flex; align-items: center; gap: 12px; font-size: 0.95rem; color: var(--text-light); }

.contact-form {
  background: #fff;
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow-lg);
}
.form-row { margin-bottom: 18px; display: flex; flex-direction: column; gap: 6px; }
.form-row label { font-size: 0.85rem; font-weight: 600; color: var(--text); }
.form-row input, .form-row textarea {
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 14px;
  font-family: inherit;
  font-size: 0.95rem;
  resize: vertical;
  transition: border-color 0.15s ease;
}
.form-row input:focus, .form-row textarea:focus {
  outline: none;
  border-color: var(--primary);
}
.form-note { font-size: 0.85rem; color: var(--text-muted); margin: 12px 0 0; text-align: center; }

/* Footer */
.footer { background: var(--bg-dark); padding: 40px 0; }
.footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 20px;
}
.footer__nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer__nav a { font-size: 0.88rem; color: #94A3B8; }
.footer__nav a:hover { color: #fff; }
.footer__copy { font-size: 0.82rem; color: #64748B; margin: 0; width: 100%; text-align: center; }

/* Responsive */
@media (max-width: 1040px) {
  .nav, .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .hero__inner, .about, .contact { grid-template-columns: 1fr; }
  .about__graphic { order: -1; max-width: 320px; margin: 0 auto; }
  .mv-grid { grid-template-columns: 1fr; }
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .projects-grid, .testimonials-grid { grid-template-columns: 1fr; }
  .stats { flex-wrap: wrap; row-gap: 16px; }

  .nav.nav--open {
    display: flex;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 18px;
  }
}

@media (max-width: 560px) {
  .services-grid { grid-template-columns: 1fr; }
  .footer__inner { flex-direction: column; text-align: center; }
}