:root {
  --impulze-dark: #292929;
  --impulze-dark-2: #1c1c1c;
  --impulze-red: #ee2d24;
  --impulze-red-dark: #c81f18;
  --impulze-ink: #232323;
  --impulze-muted: #6b6b6b;
  --impulze-bg: #f7f7f7;
  --impulze-line: #e4e4e4;
}

html { scroll-behavior: smooth; }
body {
  color: var(--impulze-ink);
  background: #fff;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.navbar-brand img { height: 40px; width: auto; }
.nav-link { font-weight: 600; color: var(--impulze-dark); }
.nav-link:hover, .nav-link.active { color: var(--impulze-red); }
.btn-primary {
  --bs-btn-bg: var(--impulze-red);
  --bs-btn-border-color: var(--impulze-red);
  --bs-btn-hover-bg: var(--impulze-red-dark);
  --bs-btn-hover-border-color: var(--impulze-red-dark);
  --bs-btn-active-bg: var(--impulze-red-dark);
  --bs-btn-active-border-color: var(--impulze-red-dark);
}
.btn-outline-primary {
  --bs-btn-color: var(--impulze-dark);
  --bs-btn-border-color: var(--impulze-dark);
  --bs-btn-hover-bg: var(--impulze-dark);
  --bs-btn-hover-border-color: var(--impulze-dark);
}
.btn-outline-light {
  --bs-btn-color: #fff;
  --bs-btn-border-color: rgba(255,255,255,.55);
  --bs-btn-hover-bg: rgba(255,255,255,.12);
  --bs-btn-hover-border-color: #fff;
  --bs-btn-hover-color: #fff;
}

.hero-section {
  min-height: 78vh;
  display: flex;
  align-items: center;
  padding: 7rem 0 5rem;
  position: relative;
  overflow: hidden;
  background: var(--impulze-dark) url("../assets/hero-bg.jpg") center center / cover no-repeat;
  color: #fff;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(120deg, rgba(20,20,28,.88) 0%, rgba(20,20,28,.72) 45%, rgba(20,20,28,.55) 100%);
}
.hero-section::after {
  content: "";
  position: absolute;
  z-index: 0;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: var(--impulze-red);
}
.hero-section .container { position: relative; z-index: 1; }
.hero-section .lead,
.hero-section p { color: rgba(255,255,255,.78); }

.eyebrow,
.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: .78rem;
  font-weight: 800;
  color: var(--impulze-red);
}
.section-kicker.light { color: #ff8f88; }
.hero-section .eyebrow { color: #ff8f88; }

.hero-card,
.insight-panel,
.service-card,
.detail-card,
.mini-card {
  border-radius: 1.25rem;
  box-shadow: 0 1.25rem 3rem rgba(0,0,0,.25);
}
.hero-card {
  background: var(--impulze-dark-2);
  border: 1px solid rgba(255,255,255,.14);
  color: #fff;
}
.hero-card p { color: rgba(255,255,255,.75); }

.icon-circle,
.service-icon,
.icon-circle-sm {
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--impulze-red);
  font-weight: 800;
}
.icon-circle { width: 4rem; height: 4rem; }
.service-icon { width: 4rem; height: 4rem; }
.icon-circle-sm { width: 2.75rem; height: 2.75rem; flex-shrink: 0; }

.service-card {
  position: relative;
  padding: 2rem;
  background: #fff;
  border: 1px solid var(--impulze-line);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 1.5rem 4rem rgba(0,0,0,.12);
  border-color: rgba(238,45,36,.35);
}
.service-card a,
.service-card a:hover { color: var(--impulze-red); font-weight: 700; text-decoration: none; }

.research-band { background: var(--impulze-bg); }
.check-list { list-style: none; padding: 0; margin: 0; }
.check-list li { padding-left: 2rem; margin-bottom: 1rem; position: relative; }
.check-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  top: 0;
  width: 1.35rem;
  height: 1.35rem;
  border-radius: 50%;
  display: grid;
  place-items: center;
  color: #fff;
  background: var(--impulze-red);
  font-size: .8rem;
  font-weight: 800;
}

.insight-panel { background: #fff; padding: 2rem; border: 1px solid var(--impulze-line); }
.mini-card,
.detail-card { background: #f8f8f8; padding: 1rem; font-weight: 700; color: var(--impulze-dark); border: 1px solid var(--impulze-line); border-left: 3px solid var(--impulze-red); }
.mini-card { height: 100%; display: flex; align-items: center; }

.meeting-visual {
  min-height: 360px;
  border-radius: 2rem;
  background: var(--impulze-dark);
  position: relative;
  overflow: hidden;
  box-shadow: 0 1.5rem 4rem rgba(0,0,0,.25);
}
.meeting-visual img {
  width: 100%;
  height: 100%;
  min-height: 360px;
  object-fit: cover;
  display: block;
}
.bubble { position: absolute; border-radius: 50%; background: rgba(255,255,255,.08); border: 1px solid rgba(255,255,255,.18); }
.bubble-one { width: 190px; height: 190px; top: 45px; left: 45px; }
.bubble-two { width: 150px; height: 150px; right: 55px; top: 85px; background: var(--impulze-red); opacity: .35; border-color: rgba(238,45,36,.4); }
.bubble-three { width: 230px; height: 230px; bottom: -70px; left: 120px; background: rgba(255,255,255,.06); }

.contact-section {
  background: var(--impulze-dark-2);
  position: relative;
  overflow: hidden;
}
.contact-section::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  right: 0;
  width: 6px;
  background: var(--impulze-red);
}
.contact-section .container { position: relative; z-index: 1; }

.page-header {
  padding: 6.5rem 0 4rem;
  position: relative;
  overflow: hidden;
  background: var(--impulze-dark) url("../assets/hero-bg.jpg") center center / cover no-repeat;
  color: #fff;
}
.page-header::before {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 0;
  background: linear-gradient(120deg, rgba(20,20,28,.88) 0%, rgba(20,20,28,.72) 45%, rgba(20,20,28,.55) 100%);
}
.page-header::after {
  content: "";
  position: absolute;
  z-index: 1;
  top: 0;
  bottom: 0;
  left: 0;
  width: 6px;
  background: var(--impulze-red);
}
.page-header .container { position: relative; z-index: 2; }
.page-header p { color: rgba(255,255,255,.78); }
.page-header .eyebrow { color: #ff8f88; }

.site-footer { color: var(--impulze-muted); }
.site-footer a { color: var(--impulze-muted); text-decoration: none; }
.site-footer a:hover { color: var(--impulze-red); text-decoration: underline; }
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-wrap: wrap; gap: 1rem 1.5rem; }

.person-card {
  background: #fff;
  border: 1px solid var(--impulze-line);
  border-radius: 1.25rem;
  padding: 1.75rem;
  box-shadow: 0 1.25rem 3rem rgba(0,0,0,.06);
  height: 100%;
}
.person-card .role { color: var(--impulze-red); font-weight: 700; font-size: .85rem; text-transform: uppercase; letter-spacing: .06em; }
.person-photo {
  width: 4.5rem;
  height: 4.5rem;
  border-radius: 50%;
  object-fit: cover;
  display: block;
}

.contact-card {
  background: #fff;
  border: 1px solid var(--impulze-line);
  border-radius: 1.25rem;
  padding: 2rem;
  box-shadow: 0 1.25rem 3rem rgba(0,0,0,.06);
}

@media (max-width: 767.98px) {
  .hero-section { min-height: auto; padding: 5.5rem 0 3rem; }
  .display-4 { font-size: 2.7rem; }
}