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

html { scroll-behavior: smooth; }

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

.container {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 48px;
}

/* ── Navigation ───────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-system-deep);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-logo {
  display: flex;
  align-items: center;
}

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

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}

.nav-links a {
  font-size: var(--text-body-s);
  font-weight: var(--weight-medium);
  color: rgba(255,255,255,0.65);
  transition: color var(--transition-fast);
}

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

/* ── Language Switch ──────────────────────────── */
.lang-switch {
  display: flex;
  align-items: center;
  gap: 2px;
}

.lang-switch button {
  background: none;
  border: none;
  color: rgba(255,255,255,0.4);
  font-family: var(--font-body);
  font-size: 11px;
  font-weight: var(--weight-medium);
  letter-spacing: 0.04em;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
}

.lang-switch button:hover {
  color: rgba(255,255,255,0.75);
}

.lang-switch button.active {
  color: var(--color-white);
  background: rgba(255,255,255,0.1);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-body-s);
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: opacity var(--transition-fast), background var(--transition-fast);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: var(--color-signal-blue);
  color: var(--color-white);
  padding: 10px 20px;
}

.btn-primary:hover { opacity: 0.88; }

.btn-large {
  padding: 14px 28px;
  font-size: 15px;
}

/* ── Hero ─────────────────────────────────────── */
.hero {
  position: relative;
  overflow: hidden;
  background-color: var(--color-system-deep);
  padding: 96px 0 80px;
}

/* Energy flow lines — atmospheric bg per brand identity */
.hero-lines {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero-eyebrow {
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-energy-teal);
  margin-bottom: 20px;
}

.hero h1 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: clamp(40px, 5vw, 64px);
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  max-width: 680px;
  margin-bottom: 24px;
}

.hero-subtitle {
  font-size: var(--text-body-l);
  line-height: var(--leading-relaxed);
  color: var(--color-text-muted);
  max-width: 560px;
  margin-bottom: 40px;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 24px;
}

.link-teal {
  font-size: 15px;
  font-weight: var(--weight-medium);
  color: var(--color-energy-teal);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity var(--transition-fast);
}

.link-teal:hover { opacity: 0.8; }

/* Trust bar */
.trust-bar {
  margin-top: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.trust-divider {
  width: 80px;
  height: 1px;
  background: var(--color-energy-teal);
}

.trust-label {
  font-size: var(--text-label);
  font-weight: var(--weight-medium);
  color: var(--color-text-secondary);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.trust-logos {
  display: flex;
  align-items: center;
  gap: 32px;
}

.trust-logo-placeholder {
  width: 80px;
  height: 28px;
  background: rgba(255,255,255,0.08);
  border-radius: 4px;
}

.trust-client-name {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-body-s);
  color: rgba(255,255,255,0.5);
  padding: 6px 16px;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-sm);
}

/* ── Partners ─────────────────────────────────── */
.partners {
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 56px 0;
}

.partners-heading {
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: var(--text-label);
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  text-align: center;
  margin-bottom: 32px;
}

.partners-grid {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 48px;
}

.partner-logo {
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0.4;
  transition: opacity var(--transition-normal);
  filter: grayscale(100%);
}

.partner-logo:hover {
  opacity: 0.7;
}

.partner-logo-img {
  height: 28px;
  width: auto;
  display: block;
}

/* ── Services ─────────────────────────────────── */
.services {
  background: var(--color-surface);
  padding: 80px 0;
}

.services-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.service-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 40px;
  box-shadow: var(--shadow-sm);
}

.service-icon {
  width: 40px;
  height: 40px;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.service-card h3 {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-h3);
  letter-spacing: var(--tracking-tight);
  color: var(--color-system-deep);
  margin-bottom: 14px;
  line-height: var(--leading-snug);
}

.service-card h3 .accent { color: var(--color-energy-teal); }

.service-card p {
  font-size: var(--text-body-s);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  margin-bottom: 28px;
}

.link-blue {
  font-size: var(--text-body-s);
  font-weight: var(--weight-medium);
  color: var(--color-signal-blue);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: opacity var(--transition-fast);
}

.link-blue:hover { opacity: 0.75; }

/* Services section heading */
.services-heading {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-tight);
  color: var(--color-system-deep);
  margin-bottom: 40px;
}

/* ── Features ─────────────────────────────────── */
.features {
  background: var(--color-system-deep);
  padding: 88px 0;
}

.features-heading {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  text-align: center;
  margin-bottom: 64px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 48px 40px;
}

.feature-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 16px;
  color: var(--color-energy-teal);
  display: flex;
  align-items: center;
  justify-content: center;
}

.feature-item h4 {
  font-family: var(--font-display);
  font-weight: var(--weight-semibold);
  font-size: var(--text-body-m);
  color: var(--color-white);
  margin-bottom: 10px;
  letter-spacing: var(--tracking-tight);
}

.feature-item p {
  font-size: var(--text-body-s);
  line-height: var(--leading-normal);
  color: var(--color-text-muted);
}

/* Step numbers for process section */
.step-number {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  color: var(--color-energy-teal);
  opacity: 0.35;
  margin-bottom: 12px;
  display: block;
  line-height: 1;
}

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

/* Step subtitles */
.step-sub {
  font-weight: var(--weight-regular);
  color: var(--color-text-muted);
}

/* ── Careers ──────────────────────────────────── */
.careers {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  padding: 72px 0;
}

.careers-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
}

.careers-text h2 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-tight);
  color: var(--color-system-deep);
  margin-bottom: 12px;
}

.careers-text p {
  font-size: var(--text-body-s);
  line-height: var(--leading-relaxed);
  color: var(--color-text-secondary);
  max-width: 520px;
}

/* ── Locations ───────────────────────────────── */
.locations {
  background: var(--color-system-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 80px 0;
}

.locations-heading {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h2);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  text-align: center;
  margin-bottom: 12px;
}

.locations-subtitle {
  font-size: var(--text-body-s);
  color: var(--color-text-muted);
  text-align: center;
  max-width: 520px;
  margin: 0 auto 48px;
  line-height: var(--leading-relaxed);
}

.locations-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}

.location-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-md);
  padding: 32px;
}

.location-flag {
  margin-bottom: 20px;
  border-radius: 3px;
  overflow: hidden;
  width: 28px;
  height: 20px;
}

.location-card h3 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: var(--text-h3);
  color: var(--color-white);
  margin-bottom: 4px;
}

.location-country {
  font-size: var(--text-body-s);
  color: var(--color-energy-teal);
  font-weight: var(--weight-medium);
  display: block;
  margin-bottom: 16px;
}

.location-role {
  font-size: var(--text-body-s);
  color: var(--color-text-muted);
  line-height: var(--leading-normal);
}

/* ── CTA Strip ────────────────────────────────── */
.cta-strip {
  background: var(--color-system-deep);
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 88px 0;
  text-align: center;
}

.cta-strip h2 {
  font-family: var(--font-display);
  font-weight: var(--weight-bold);
  font-size: clamp(28px, 4vw, var(--text-h1));
  line-height: var(--leading-tight);
  letter-spacing: var(--tracking-tight);
  color: var(--color-white);
  margin-bottom: 16px;
}

.cta-strip p {
  font-size: var(--text-body-m);
  color: var(--color-text-muted);
  margin-bottom: 36px;
}

/* ── Footer ───────────────────────────────────── */
footer {
  background: var(--color-system-deep);
  border-top: 1px solid rgba(255,255,255,0.07);
  padding: 56px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-logo-img {
  height: 28px;
  width: auto;
  display: block;
  margin-bottom: 12px;
}

.footer-tagline {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
  line-height: var(--leading-normal);
}

.footer-col h5 {
  font-family: var(--font-body);
  font-weight: var(--weight-medium);
  font-size: 11px;
  letter-spacing: var(--tracking-caps);
  text-transform: uppercase;
  color: var(--color-text-secondary);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col ul a {
  font-size: var(--text-body-s);
  color: rgba(255,255,255,0.55);
  transition: color var(--transition-fast);
}

.footer-col ul a:hover { color: var(--color-white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.07);
  padding-top: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.footer-bottom span {
  font-size: var(--text-body-s);
  color: var(--color-text-secondary);
}

.footer-nrg {
  font-size: var(--text-label);
  color: var(--color-text-secondary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-nrg::before {
  content: '';
  display: inline-block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-energy-teal);
}

/* ── Misc ─────────────────────────────────────── */
.icon { display: block; }

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: var(--radius-sm);
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.5);
  transition: background var(--transition-normal), color var(--transition-normal);
  margin-top: 4px;
}

.social-link:hover {
  background: rgba(255,255,255,0.14);
  color: var(--color-white);
}

/* ── Responsive ───────────────────────────────── */

/* Tablet — collapse some grids */
@media (max-width: 900px) {
  .container { padding: 0 32px; }

  .features-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 40px 32px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
}

/* Mobile */
@media (max-width: 640px) {
  .container { padding: 0 20px; }

  /* Nav: hide links, keep logo + lang + CTA */
  .nav-links { display: none; }
  .nav-inner { height: 56px; }

  /* Partners */
  .partners { padding: 40px 0; }
  .partners-grid { gap: 32px; }

  .lang-switch button {
    padding: 4px 6px;
    font-size: 10px;
  }

  /* Hero */
  .hero { padding: 56px 0 48px; }

  .hero h1 {
    font-size: clamp(32px, 9vw, 44px);
    margin-bottom: 20px;
  }

  .hero-subtitle {
    font-size: var(--text-body-m);
    margin-bottom: 32px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .trust-bar { margin-top: 48px; gap: 16px; }

  .trust-logos {
    flex-wrap: wrap;
    justify-content: center;
    gap: 12px;
  }

  .trust-logo-placeholder { width: 64px; height: 24px; }

  /* Services */
  .services { padding: 52px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .service-card { padding: 28px; }

  /* Features */
  .features { padding: 52px 0; }

  .features-heading {
    font-size: clamp(20px, 6vw, 28px);
    margin-bottom: 40px;
  }

  .features-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

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

  /* Careers */
  .careers { padding: 48px 0; }
  .careers-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 24px;
  }

  /* Locations */
  .locations { padding: 52px 0; }
  .locations-grid { grid-template-columns: 1fr; }
  .location-card { padding: 24px; }

  /* CTA */
  .cta-strip { padding: 64px 0; }

  .cta-strip h2 { font-size: clamp(24px, 7vw, 36px); }

  /* Footer */
  footer { padding: 44px 0 28px; }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
    margin-bottom: 32px;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }
}