/* ==========================================================================
   Binary Systems — design tokens
   ========================================================================== */
:root {
  --color-primary: #311081;
  --color-primary-soft: rgba(49, 16, 129, 0.3);
  --color-ink: #1c1629;
  --color-text: #251e36;
  --color-bg: #ffffff;
  --color-bg-lavender: #f6f1fc;
  --color-bg-blue: #e0e8ff;
  --color-bg-pink: #fadcec;
  --color-bg-violet-tint: #ebeaf6;
  --color-accent-magenta: #bd45e6;
  --color-accent-purple: #8e45a1;
  --color-accent-blue: #96b1ff;

  --card-bg: linear-gradient(180deg, rgba(246, 241, 252, 0.6) 0%, rgba(255, 255, 255, 0.6) 100%);
  --card-shadow:
    0px 1px 1px -1px rgba(0, 0, 0, 0.04),
    0px 2px 2px -2px rgba(0, 0, 0, 0.04),
    0px 6px 6px -3px rgba(0, 0, 0, 0.03),
    0px 20px 20px -4px rgba(0, 0, 0, 0.01),
    inset 0px 0px 1px 1px rgb(255, 255, 255);

  --font-heading: 'Satoshi', 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-stat: 'Manrope', sans-serif;
  --font-quote: 'Playpen Sans', cursive;

  --radius-lg: 32px;
  --radius-md: 16px;
  --radius-sm: 7px;

  --container-w: 1200px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

/* ==========================================================================
   Motion — blur-up reveal on load / scroll into view
   ========================================================================== */
@media (prefers-reduced-motion: no-preference) {
  .reveal {
    opacity: 0;
    transform: translateY(16px);
    filter: blur(6px);
    transition: opacity 0.7s cubic-bezier(0.22, 0.68, 0, 1), transform 0.7s cubic-bezier(0.22, 0.68, 0, 1), filter 0.7s cubic-bezier(0.22, 0.68, 0, 1);
  }
  .reveal.in-view {
    opacity: 1;
    transform: translateY(0);
    filter: blur(0);
  }
  .reveal-word {
    display: inline-block;
    opacity: 0;
    filter: blur(10px);
    transform: translateY(10px);
    transition: opacity 0.5s cubic-bezier(0.22, 0.68, 0, 1), transform 0.5s cubic-bezier(0.22, 0.68, 0, 1), filter 0.5s cubic-bezier(0.22, 0.68, 0, 1);
  }
  .reveal-word.in-view {
    opacity: 1;
    filter: blur(0);
    transform: translateY(0);
  }
}
@media (prefers-reduced-motion: reduce) {
  .reveal, .reveal-word { opacity: 1 !important; transform: none !important; filter: none !important; }
}

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

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

ul { list-style: none; margin: 0; padding: 0; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: var(--color-primary);
  background: var(--color-bg-lavender);
  border: 1px solid rgba(49, 16, 129, 0.1);
  padding: 6px 16px;
  border-radius: 999px;
}

h1, h2, h3 {
  font-family: var(--font-heading);
  color: var(--color-ink);
  letter-spacing: -0.04em;
  line-height: 1.1;
  margin: 0;
  font-weight: 500;
}

h1 { font-size: clamp(2.5rem, 6vw, 5.375rem); }
h2 { font-size: clamp(1.75rem, 4vw, 2.625rem); }
h3 { font-size: 1.25rem; letter-spacing: -0.02em; }

p {
  font-size: 16px;
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.6;
  color: var(--color-text);
  margin: 0;
}

.section {
  padding: 96px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: -0.02em;
  cursor: pointer;
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--color-primary);
  color: #fff;
  box-shadow: 0 8px 24px rgba(49, 16, 129, 0.25);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 28px rgba(49, 16, 129, 0.35); }

.btn-ghost {
  background: #fff;
  color: var(--color-primary);
  border: 1px solid rgba(49, 16, 129, 0.15);
}
.btn-ghost:hover { background: var(--color-bg-lavender); }

/* ==========================================================================
   Header / Nav
   ========================================================================== */
.site-header {
  position: sticky;
  top: 16px;
  z-index: 100;
  padding: 0 24px;
}

.nav {
  max-width: var(--container-w);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.75);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 999px;
  padding: 10px 12px 10px 20px;
  box-shadow: var(--card-shadow);
}

.nav-logo img { height: 34px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-links a {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  transition: color 0.2s ease;
}
.nav-links a:hover { color: var(--color-primary); }

.nav-cta { display: flex; align-items: center; gap: 12px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  cursor: pointer;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.nav-toggle span,
.nav-toggle::before,
.nav-toggle::after {
  content: '';
  display: block;
  width: 20px;
  height: 2px;
  background: var(--color-ink);
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle span { margin: 5px 0; }

.nav-mobile-panel {
  display: none;
  max-width: var(--container-w);
  margin: 8px auto 0;
  background: #fff;
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 16px 20px;
}
.nav-mobile-panel a {
  display: block;
  padding: 12px 0;
  font-weight: 600;
  border-bottom: 1px solid var(--color-bg-violet-tint);
}
.nav-mobile-panel a:last-child { border-bottom: none; }

body.nav-open .nav-mobile-panel { display: block; }
body.nav-open .nav-toggle::before { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle::after { transform: translateY(-7px) rotate(-45deg); }
body.nav-open .nav-toggle span { opacity: 0; }

/* ==========================================================================
   Hero
   ========================================================================== */
.hero {
  position: relative;
  padding: 72px 0 64px;
  text-align: center;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  top: -120px;
  left: 50%;
  transform: translateX(-50%);
  width: min(1200px, 150vw);
  z-index: -1;
  opacity: 0.9;
  border-radius: 0 0 50% 50% / 0 0 10% 10%;
  mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
  -webkit-mask-image: linear-gradient(to bottom, black 60%, transparent 100%);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  border-radius: 999px;
  padding: 8px 20px 8px 8px;
  box-shadow: var(--card-shadow);
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 28px;
}
.hero-badge img { height: 28px; width: auto; border-radius: 999px; }

.hero h1 {
  max-width: 900px;
  margin: 0 auto 20px;
}

.hero-lede {
  max-width: 620px;
  margin: 0 auto 36px;
  font-size: 18px;
  opacity: 0.85;
}

.hero-actions {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 20px;
}

.hero-sub {
  font-size: 14px;
  opacity: 0.6;
  max-width: 480px;
  margin: 0 auto;
}

/* ==========================================================================
   Who we are / Services
   ========================================================================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-bottom: 64px;
}

.service-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 28px 24px;
  position: relative;
  overflow: hidden;
}

.service-icon {
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--card-bg);
  box-shadow: var(--card-shadow);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--color-primary);
  position: relative;
}
.service-icon::after {
  content: '';
  position: absolute;
  inset: -20px;
  background: radial-gradient(50% 50% at 50% 50%, rgba(255, 255, 255, 0.5) 0%, rgba(255, 255, 255, 0) 100%);
  z-index: -1;
}

.service-card h3 { margin-bottom: 12px; }
.service-card ul { display: flex; flex-direction: column; gap: 8px; }
.service-card li {
  font-size: 15px;
  letter-spacing: -0.02em;
  opacity: 0.85;
  padding-left: 16px;
  position: relative;
}
.service-card li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-accent-magenta);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  text-align: center;
}

.stat-number {
  font-family: var(--font-stat);
  font-weight: 800;
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--color-primary);
  letter-spacing: -0.02em;
}

.stat-label {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: -0.01em;
  opacity: 0.7;
  margin-top: 6px;
}

/* ==========================================================================
   Projects
   ========================================================================== */
.section-alt { background: var(--color-bg-lavender); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.project-card {
  background: #fff;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: transform 0.25s ease;
}
.project-card:hover { transform: translateY(-6px); }

.project-media {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  position: relative;
}
.project-media img { width: 100%; height: 100%; object-fit: cover; }

.project-year {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(6px);
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 700;
  color: var(--color-primary);
}

.project-body { padding: 20px 22px 24px; }
.project-body h3 { margin-bottom: 8px; }
.project-body p { font-size: 14.5px; opacity: 0.8; }

/* ==========================================================================
   Testimonial
   ========================================================================== */
.testimonial {
  position: relative;
  text-align: center;
  overflow: hidden;
}

.testimonial-cloud {
  position: absolute;
  left: 50%;
  top: 10%;
  transform: translateX(-50%);
  width: 500px;
  opacity: 0.5;
  z-index: 0;
  pointer-events: none;
}

.testimonial-inner {
  position: relative;
  z-index: 1;
  max-width: 720px;
  margin: 0 auto;
}

.testimonial-quote {
  font-family: var(--font-quote);
  font-size: clamp(1.25rem, 3vw, 1.5rem);
  font-weight: 500;
  letter-spacing: -0.03em;
  line-height: 1.4;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.testimonial-author {
  font-size: 14px;
  font-weight: 600;
  opacity: 0.7;
}

.office-photo {
  margin: 48px auto 0;
  max-width: 900px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  position: relative;
  z-index: 1;
}

/* ==========================================================================
   Careers
   ========================================================================== */
.careers-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-bottom: 32px;
}

.job-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 24px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  transition: transform 0.2s ease;
}
.job-card:hover { transform: translateY(-4px); }

.job-card h3 { font-size: 18px; }
.job-card p { font-size: 14.5px; opacity: 0.8; }

.job-meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: auto;
}
.job-tag {
  font-size: 12.5px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 999px;
  background: var(--color-bg-violet-tint);
  color: var(--color-primary);
}

.careers-footer {
  text-align: center;
}

/* ==========================================================================
   CTA
   ========================================================================== */
.cta {
  position: relative;
  text-align: center;
  overflow: hidden;
  border-radius: var(--radius-lg);
  margin: 0 24px;
  max-width: calc(var(--container-w) - 48px);
  margin-inline: auto;
  background: linear-gradient(160deg, var(--color-primary) 0%, #1c1629 100%);
  padding: 80px 32px;
  color: #fff;
}
.cta h2 { color: #fff; }
.cta p { color: rgba(255, 255, 255, 0.75); max-width: 520px; margin: 16px auto 32px; }
.cta .btn-primary { background: #fff; color: var(--color-primary); }
.cta .btn-primary:hover { background: var(--color-bg-lavender); }

.cta-cloud {
  position: absolute;
  bottom: -60px;
  left: 50%;
  transform: translateX(-50%);
  width: 700px;
  opacity: 0.08;
  pointer-events: none;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.site-footer {
  padding: 56px 0 32px;
  border-top: 1px solid var(--color-bg-violet-tint);
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
  margin-bottom: 32px;
}

.footer-logo img { height: 32px; width: auto; }

.footer-socials { display: flex; gap: 16px; }
.footer-socials a {
  width: 40px;
  height: 40px;
  border-radius: 999px;
  background: var(--color-bg-lavender);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  transition: background 0.2s ease;
}
.footer-socials a:hover { background: var(--color-bg-violet-tint); }

.footer-bottom {
  font-size: 13.5px;
  opacity: 0.6;
  text-align: center;
  padding-top: 24px;
  border-top: 1px solid var(--color-bg-violet-tint);
}

/* ==========================================================================
   Contact page
   ========================================================================== */
.contact-hero { text-align: center; padding-bottom: 48px; }
.contact-hero .eyebrow { margin-bottom: 20px; }
.contact-hero h1 { max-width: 700px; margin: 0 auto 16px; }
.contact-hero p { max-width: 560px; margin: 0 auto; opacity: 0.8; }

.contact-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  max-width: 800px;
  margin: 0 auto 64px;
}

.contact-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  box-shadow: var(--card-shadow);
  padding: 28px;
  text-align: left;
}
.contact-card .service-icon { margin-bottom: 16px; }
.contact-card h3 { margin-bottom: 8px; }
.contact-card p { opacity: 0.75; font-size: 14.5px; margin-bottom: 12px; }
.contact-card a.contact-value {
  font-weight: 700;
  color: var(--color-primary);
  font-size: 15px;
}

.contact-form-wrap {
  max-width: 640px;
  margin: 0 auto;
  background: #fff;
  border-radius: var(--radius-lg);
  box-shadow: var(--card-shadow);
  padding: 40px;
}

.form-row { margin-bottom: 20px; }
.form-row label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-ink);
}
.form-row input,
.form-row textarea {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-bg-violet-tint);
  background: var(--color-bg-lavender);
  font-family: var(--font-body);
  font-size: 15px;
  color: var(--color-ink);
  resize: vertical;
  transition: border-color 0.2s ease, background 0.2s ease;
}
.form-row input:focus,
.form-row textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
}

.form-note {
  font-size: 13.5px;
  text-align: center;
  margin-top: 16px;
  opacity: 0.7;
}
.form-note.success { color: #1d8a4a; opacity: 1; font-weight: 600; }

/* ==========================================================================
   Responsive
   ========================================================================== */
@media (max-width: 900px) {
  .nav-links, .nav-cta .btn-ghost { display: none; }
  .nav-toggle { display: flex; }
  .services-grid, .projects-grid { grid-template-columns: 1fr 1fr; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .careers-grid, .contact-cards { grid-template-columns: 1fr; }
}

@media (max-width: 620px) {
  .section { padding: 64px 0; }
  .services-grid, .projects-grid { grid-template-columns: 1fr; }
  .cta { padding: 56px 24px; }
  .contact-form-wrap { padding: 28px 20px; }
  .hero-badge span { display: none; }
}