/* ============================================================
   Kopp Beratung — Site layout & components
   ============================================================ */

.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.container--narrow { max-width: 900px; }
.section { padding: 96px 0; }
.section--soft { background: var(--kb-grey-50); }
.section--white { background: var(--kb-white); }
.section--navy { background: var(--kb-navy); color: #fff; }
.section-head { max-width: 720px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { margin: 14px 0 0; color: var(--kb-navy); }
.section--navy .section-head h2 { color: #fff; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-sans); font-weight: 500; font-size: 17px;
  padding: 15px 28px; border-radius: 10px; border: none; cursor: pointer;
  text-decoration: none; line-height: 1;
  transition: background var(--dur-fast) var(--ease-out), transform var(--dur-fast) var(--ease-out);
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn--primary { background: var(--kb-orange); color: #fff; }
.btn--primary:hover { background: var(--kb-orange-600); color: #fff; }
.btn--navy { background: var(--kb-navy); color: #fff; }
.btn--navy:hover { background: var(--kb-navy-500); color: #fff; }
.btn--sm { font-size: 15px; padding: 12px 22px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.97);
  backdrop-filter: saturate(180%) blur(8px);
  border-bottom: 1px solid var(--kb-grey-100);
}
.site-header__inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px; height: 76px;
  display: flex; align-items: center; justify-content: space-between;
}
.site-header__logo { display: flex; align-items: center; }
.site-header__logo img { height: 38px; display: block; }
.site-nav { display: flex; gap: 36px; align-items: center; }
.site-nav a { font-size: 15px; font-weight: 500; color: var(--kb-navy); }
.site-nav a:hover { color: var(--kb-orange-600); }
.site-header__cta { display: flex; align-items: center; gap: 16px; }

/* Mobile nav toggle */
.nav-toggle {
  display: none; background: none; border: none; cursor: pointer;
  padding: 8px; color: var(--kb-navy);
}
.nav-toggle svg { display: block; }

/* ---------- Hero ---------- */
.hero { background: var(--kb-grey-50); color: var(--kb-navy); overflow: hidden; }
.hero__grid {
  min-height: calc(100svh - 77px);
  display: grid; grid-template-columns: 1.1fr 0.9fr; column-gap: 64px; row-gap: 16px;
  grid-template-rows: minmax(0, 1fr) auto;
  align-items: center; padding: 40px 0 clamp(40px, 4.5svh, 58px);
}
.hero__copy { grid-column: 1; grid-row: 1; }
.hero h1 { font-size: 66px; font-weight: 700; line-height: 1.04; letter-spacing: -0.03em;
           margin: 16px 0 22px; color: var(--kb-navy); }
.hero__lead { font-size: 20px; line-height: 1.55; color: var(--kb-grey-700); max-width: 500px; margin: 0 0 36px; }
.hero__actions { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.hero__stats { display: flex; gap: 40px; margin-top: 52px; flex-wrap: wrap; }
.hero__stat-num { font-size: 30px; font-weight: 700; color: var(--kb-navy); letter-spacing: -0.02em; line-height: 1; }
.hero__stat-label { margin-top: 6px; color: var(--kb-grey-500); font-size: 14px; }
.hero__media { grid-column: 2; grid-row: 1; position: relative; display: flex; justify-content: flex-end; }
.hero__portrait {
  width: min(100%, 490px); aspect-ratio: 4/5; border-radius: 20px; overflow: hidden; position: relative;
  box-shadow: 0 30px 80px rgba(5,11,31,0.18);
}
.hero__badge {
  position: absolute; left: 18px; bottom: 18px; display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; background: rgba(5,11,31,0.72); border-radius: 12px; pointer-events: none;
}
.hero__badge-avatar {
  width: 38px; height: 38px; border-radius: 999px;
  background: linear-gradient(135deg, var(--kb-blue), var(--kb-blue-700));
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 14px;
}
.hero__portrait img,
.founder__portrait img,
.feature-card__media img {
  width: 100%; height: 100%; display: block; object-fit: cover;
}

.rating-pill {
  display: inline-flex; align-items: center; gap: 10px; padding: 10px 16px;
  background: #fff; border: 1px solid var(--kb-grey-100); border-radius: 10px; text-decoration: none;
}
.rating-pill .stars { color: var(--kb-orange); font-size: 16px; letter-spacing: 1px; }
.rating-pill .label { font-size: 14px; color: var(--kb-navy); font-weight: 600; }

.hero__logo-band {
  grid-column: 1 / -1;
  align-self: end;
  display: grid; grid-template-columns: auto minmax(0, 1fr); align-items: center; gap: 24px;
  margin: 0 -14px; padding: 8px 14px;
  background: linear-gradient(180deg, rgba(255,255,255,0.36), rgba(255,255,255,0.78));
  border: 1px solid rgba(228,230,235,0.72); border-radius: 16px;
  box-shadow: 0 18px 54px rgba(5,11,31,0.06);
}
.hero__logo-band-label { margin: 0; white-space: nowrap; }
.logo-marquee {
  position: relative; overflow: hidden; min-width: 0;
  background: rgba(255,255,255,0.94); border: 1px solid rgba(210,213,220,0.72);
  border-radius: 12px; padding: 10px 0;
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.8);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.logo-marquee__track {
  display: flex; width: max-content; animation: logo-marquee-scroll 34s linear infinite;
}
.logo-marquee:hover .logo-marquee__track { animation-play-state: paused; }
.logo-marquee__group {
  display: flex; align-items: center; gap: 36px; padding-right: 36px;
}
.logo-marquee__item {
  width: 148px; height: 50px; flex: 0 0 auto;
  display: flex; align-items: center; justify-content: center;
}
.logo-marquee__item--compact { width: 76px; }
.logo-marquee__item img {
  max-width: 100%; max-height: 100%; display: block; object-fit: contain;
}

@keyframes logo-marquee-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Image placeholders (until real photos are added) ---------- */
.img-slot {
  width: 100%; height: 100%; display: grid; place-items: center;
  background:
    linear-gradient(135deg, var(--kb-grey-50), var(--kb-grey-100)),
    repeating-linear-gradient(45deg, transparent 0 12px, rgba(56,182,255,0.04) 12px 24px);
  color: var(--kb-grey-500); font-size: 13px; font-weight: 600; text-align: center;
  letter-spacing: 0.02em; padding: 12px; border: 1px dashed var(--kb-grey-200);
}
.img-slot--rounded { border-radius: 10px; }

/* ---------- Generic cards grid ---------- */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }

.card { background: #fff; border-radius: 14px; padding: 32px; box-shadow: var(--shadow-sm); }
.card__num {
  width: 44px; height: 44px; border-radius: 999px; color: #fff;
  display: grid; place-items: center; font-weight: 700; font-size: 18px; margin-bottom: 20px;
}
.card__num--navy { background: var(--kb-navy); }
.card__num--orange { background: var(--kb-orange); }
.card h3 { color: var(--kb-navy); }
.card p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--kb-grey-700); }
.card__rule { width: 40px; height: 2px; background: var(--kb-orange); margin-bottom: 14px; }

.feature-card {
  border: 1px solid var(--kb-grey-100); border-radius: 14px; overflow: hidden; background: #fff;
}
.feature-card--icon {
  position: relative; display: flex; flex-direction: column;
  padding: 30px; min-height: 100%;
  box-shadow: var(--shadow-xs);
}
.feature-card--icon::before {
  content: ""; position: absolute; inset: 0 0 auto; height: 3px;
  background: linear-gradient(90deg, var(--kb-blue), var(--kb-orange));
}
.feature-card__media { aspect-ratio: 3/2; }
.feature-card__media--contain { background: var(--kb-grey-50); }
.feature-card__media--contain img { object-fit: contain; padding: 20px; }
.feature-card__body { padding: 28px; }
.feature-card--icon .feature-card__body { padding: 0; }
.feature-card__icon {
  width: 58px; height: 58px; border-radius: 14px; margin: 8px 0 24px 8px;
  display: grid; place-items: center; flex-shrink: 0;
  border: 1px solid transparent;
}
.feature-card__icon--blue {
  color: var(--kb-blue-700); background: var(--kb-blue-50);
  border-color: rgba(56, 182, 255, 0.18);
}
.feature-card__icon--orange {
  color: var(--kb-orange-700); background: var(--kb-orange-50);
  border-color: rgba(255, 145, 77, 0.22);
}
.feature-card__icon--navy {
  color: var(--kb-navy); background: var(--kb-grey-50);
  border-color: var(--kb-grey-100);
}
.feature-card__body h3 { font-size: 20px; margin: 0 0 10px; color: var(--kb-navy); }
.feature-card__body p { margin: 0; font-size: 16px; line-height: 1.6; color: var(--kb-grey-700); }

/* Process step connector */
.step-head { display: flex; align-items: center; gap: 14px; margin-bottom: 18px; }
.step-head .card__num { margin-bottom: 0; }
.step-line { height: 2px; flex: 1; background: var(--kb-grey-100); }

/* Tags */
.tags { display: flex; flex-wrap: wrap; justify-content: center; gap: 10px; }
.tag {
  display: inline-block; background: #fff; border: 1px solid var(--kb-grey-100);
  color: var(--kb-navy); font-size: 14px; font-weight: 500; padding: 8px 16px; border-radius: 999px;
}
.overline {
  font-size: 13px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--kb-grey-500);
}

/* ---------- Benefits (navy) ---------- */
.benefit-card {
  background: var(--kb-navy-700); border: 1px solid var(--kb-navy-500);
  border-radius: 14px; padding: 32px; display: flex; gap: 20px;
}
.benefit-card__icon {
  flex-shrink: 0; width: 48px; height: 48px; border-radius: 12px;
  background: var(--kb-navy-500); display: grid; place-items: center;
}
.benefit-card h3 { font-size: 20px; margin: 0 0 8px; color: #fff; }
.benefit-card p { margin: 0; font-size: 16px; line-height: 1.6; color: rgba(255,255,255,0.72); }

/* ---------- Case studies ---------- */
.case-card {
  border: 1px solid var(--kb-grey-100); border-radius: 14px; overflow: hidden; display: flex; background: #fff;
}
.case-card__media {
  width: 140px; flex-shrink: 0; display: flex; align-items: center; justify-content: center;
  background: var(--kb-grey-50);
}
.case-card__media img {
  width: 100%; height: 100%; display: block; object-fit: contain; padding: 12px;
}
.case-card__body { padding: 28px; }
.case-card__stat-row { display: flex; align-items: baseline; gap: 10px; margin-bottom: 8px; flex-wrap: wrap; }
.case-card__num { font-size: 30px; font-weight: 700; color: var(--kb-navy); letter-spacing: -0.02em; }
.case-card__badge {
  font-size: 13px; font-weight: 600; color: var(--kb-orange-700);
  background: var(--kb-orange-50); padding: 4px 10px; border-radius: 999px;
}
.case-card h3 { font-size: 18px; margin: 0 0 6px; color: var(--kb-navy); }
.case-card p { margin: 0; font-size: 15px; line-height: 1.55; color: var(--kb-grey-700); }

/* ---------- FAQ ---------- */
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item { background: #fff; border: 1px solid var(--kb-grey-100); border-radius: 14px; overflow: hidden; }
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 22px 24px; font-size: 18px; font-weight: 600; color: var(--kb-navy);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary .chev { flex-shrink: 0; color: var(--kb-grey-500); transition: transform var(--dur-base) var(--ease-out); }
.faq-item[open] summary .chev { transform: rotate(180deg); }
.faq-item__answer { margin: 0; padding: 0 24px 24px; font-size: 16px; line-height: 1.65; color: var(--kb-grey-700); }

/* ---------- Founder ---------- */
.founder { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 56px; align-items: center; }
.founder__portrait { aspect-ratio: 4/5; border-radius: 20px; overflow: hidden; box-shadow: var(--shadow-md); }
.founder h2 { font-size: 36px; margin: 12px 0 20px; color: var(--kb-navy); }
.founder__quote { font-size: 19px; line-height: 1.65; color: var(--kb-grey-700); margin: 0 0 28px; }

/* ---------- CTA band ---------- */
.cta-band { text-align: center; max-width: 820px; margin: 0 auto; padding: 0 24px; }
.cta-band h2 { font-size: 44px; font-weight: 700; letter-spacing: -0.025em; line-height: 1.1; margin: 0 0 18px; color: #fff; }
.cta-band p { font-size: 19px; line-height: 1.6; color: rgba(255,255,255,0.78); max-width: 560px; margin: 0 auto 32px; }
.hl-underline { background-image: linear-gradient(transparent 68%, var(--kb-orange) 68%); padding: 0 0.05em; }
.hl-soft { background-image: linear-gradient(transparent 70%, var(--kb-orange-100) 70%); }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: 32px; align-items: start; }
.contact-cards { display: flex; flex-direction: column; gap: 16px; }
.contact-card {
  display: flex; align-items: center; gap: 16px; background: #fff;
  border: 1px solid var(--kb-grey-100); border-radius: 14px; padding: 22px 24px; text-decoration: none;
}
.contact-card__icon {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 12px;
  background: var(--kb-grey-50); display: grid; place-items: center;
}
.contact-card__label { font-size: 13px; color: var(--kb-grey-500); font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; }
.contact-card__value { font-size: 17px; color: var(--kb-navy); font-weight: 600; }
.contact-form {
  background: #fff; border: 1px solid var(--kb-grey-100); border-radius: 20px; padding: 36px;
  display: flex; flex-direction: column; gap: 18px;
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }
.field { display: flex; flex-direction: column; gap: 7px; font-size: 14px; font-weight: 600; color: var(--kb-navy); }
.field input, .field textarea {
  font-family: var(--font-sans); font-size: 16px; padding: 12px 14px;
  border: 1px solid var(--kb-grey-200); border-radius: 10px; color: var(--kb-navy); font-weight: 400;
}
.field textarea { resize: vertical; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--kb-blue); box-shadow: var(--shadow-focus); }
.field--honeypot { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.form-status {
  margin: -4px 0 0; padding: 12px 14px; border-radius: 10px;
  font-size: 14px; line-height: 1.45; font-weight: 500;
}
.form-status--pending { background: var(--kb-grey-50); color: var(--kb-grey-700); }
.form-status--success { background: rgba(45, 184, 92, 0.1); color: #18733a; }
.form-status--error { background: rgba(229, 80, 57, 0.1); color: #9f2f20; }
.contact-form button[disabled] { opacity: 0.72; cursor: wait; transform: none; }

/* ---------- Legal pages ---------- */
.legal { color: var(--kb-grey-700); font-size: 16px; line-height: 1.7; word-break: break-word; }
.legal h1 { font-size: 44px; font-weight: 700; letter-spacing: -0.025em; margin: 12px 0 8px; color: var(--kb-navy); }
.legal h2 { font-size: 24px; font-weight: 600; color: var(--kb-navy); margin: 40px 0 12px; }
.legal h3 { font-size: 18px; font-weight: 600; color: var(--kb-navy); margin: 24px 0 8px; }
.legal p { margin: 0 0 16px; }
.legal ul { margin: 0 0 16px; padding-left: 22px; }
.legal .meta { color: var(--kb-grey-500); font-size: 14px; }
.back-link { display: inline-flex; align-items: center; gap: 6px; color: var(--kb-blue-600); font-weight: 500; }

/* ---------- Footer ---------- */
.site-footer { background: var(--kb-navy); color: rgba(255,255,255,0.72); }
.site-footer__inner { max-width: 1200px; margin: 0 auto; padding: 64px 24px 40px; }
.site-footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1.2fr; gap: 40px; }
.site-footer img { height: 40px; display: block; margin-bottom: 18px; }
.site-footer__tagline { margin: 0; font-size: 15px; line-height: 1.6; max-width: 260px; }
.site-footer__head { font-size: 13px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: rgba(255,255,255,0.5); margin-bottom: 16px; }
.site-footer__col-links { display: flex; flex-direction: column; gap: 10px; }
.site-footer__col-links a, .site-footer a { color: rgba(255,255,255,0.8); font-size: 15px; }
.site-footer__col-links a:hover, .site-footer a:hover { color: #fff; }
.site-footer__bottom { border-top: 1px solid var(--kb-navy-500); margin-top: 48px; padding-top: 24px; font-size: 14px; color: rgba(255,255,255,0.5); }

/* ============================================================
   Responsive
   ============================================================ */
@media (max-width: 960px) {
  .hero__grid {
    min-height: 0; grid-template-columns: 1fr; grid-template-rows: auto; row-gap: 32px;
    padding: 56px 0 46px;
  }
  .hero__copy, .hero__logo-band, .hero__media { grid-column: 1; grid-row: auto; }
  .hero h1 { font-size: clamp(40px, 9vw, 56px); }
  .hero__media { max-width: 460px; justify-content: flex-start; }
  .hero__portrait { width: 100%; }
  .hero__logo-band { grid-template-columns: 1fr; gap: 14px; margin: 0; padding: 12px; }
  .hero__logo-band-label { text-align: center; }
  .logo-marquee__group { gap: 28px; padding-right: 28px; }
  .founder { grid-template-columns: 1fr; gap: 32px; }
  .founder__portrait { max-width: 420px; }
  .contact-grid { grid-template-columns: 1fr; }
  .grid-3, .grid-2 { grid-template-columns: 1fr 1fr; }
  .site-footer__grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 720px) {
  .section { padding: 64px 0; }
  .site-nav {
    position: fixed; inset: 76px 0 auto 0; flex-direction: column; gap: 0;
    background: #fff; border-bottom: 1px solid var(--kb-grey-100);
    padding: 8px 24px 20px; box-shadow: var(--shadow-lg);
    transform: translateY(-140%); transition: transform var(--dur-base) var(--ease-out);
    align-items: stretch; z-index: 40;
  }
  .site-nav.is-open { transform: translateY(0); }
  .site-nav a { padding: 14px 0; border-bottom: 1px solid var(--kb-grey-100); font-size: 16px; }
  .nav-toggle { display: inline-flex; }
  .site-header__cta .btn { display: none; }
  .grid-3, .grid-2 { grid-template-columns: 1fr; }
  .hero__grid { row-gap: 28px; padding: 46px 0 40px; }
  .hero h1 { margin: 12px 0 18px; }
  .hero__lead { font-size: 18px; line-height: 1.5; margin-bottom: 26px; }
  .hero__stats { gap: 24px; margin-top: 28px; }
  .hero__logo-band { margin: 0 -4px; padding: 10px; }
  .logo-marquee { border-radius: 12px; padding: 9px 0; }
  .logo-marquee__group { gap: 22px; padding-right: 22px; }
  .logo-marquee__item { width: 118px; height: 46px; }
  .logo-marquee__item--compact { width: 64px; }
  .case-card { flex-direction: column; }
  .case-card__media { width: 100%; aspect-ratio: 16/9; }
  .form-row { grid-template-columns: 1fr; }
  .site-footer__grid { grid-template-columns: 1fr; }
  .cta-band h2 { font-size: 32px; }
  .legal h1 { font-size: 34px; }
}

@media (prefers-reduced-motion: reduce) {
  * { scroll-behavior: auto !important; }
  .btn:hover { transform: none; }
  .logo-marquee { -webkit-mask-image: none; mask-image: none; }
  .logo-marquee__track { animation: none; width: auto; justify-content: center; }
  .logo-marquee__group { flex-wrap: wrap; justify-content: center; padding: 0 18px; }
  .logo-marquee__group[aria-hidden="true"] { display: none; }
}