:root {
  --krn-primary: #0A2540;
  --krn-primary-dark: #071b30;
  --krn-accent: #00B4D8;
  --krn-text: #2B2D42;
  --krn-white: #FFFFFF;
  --krn-danger: #E63946;

  --krn-bg: #F4F8FB;
  --krn-soft: rgba(0, 180, 216, 0.1);
  --krn-soft-strong: rgba(0, 180, 216, 0.18);
  --krn-border: rgba(10, 37, 64, 0.12);
  --krn-shadow: rgba(10, 37, 64, 0.12);

  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;

  --container: 1180px;
  --header-offset: 120px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

[id] {
  scroll-margin-top: var(--header-offset);
}

body {
  margin: 0;
  overflow-x: hidden;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--krn-bg);
  color: var(--krn-text);
}

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

.inline-logo {
  display: inline-flex;
  align-items: baseline;
  font-family: "Chakra Petch", Inter, system-ui, sans-serif;
  font-weight: 900;
  letter-spacing: -0.055em;
  color: var(--krn-primary);
  white-space: nowrap;
}

.inline-logo strong {
  color: var(--krn-accent);
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  width: min(var(--container), calc(100% - 32px));
  margin: 16px auto 0;
  padding: 12px 14px;
  border: 1px solid var(--krn-border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(14px);
  box-shadow: 0 14px 34px var(--krn-shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand-logo {
  font-family: "Chakra Petch", Inter, system-ui, sans-serif;
  font-size: 1.45rem;
  font-weight: 900;
  letter-spacing: -0.04em;
  color: var(--krn-primary);
  white-space: nowrap;
}

.brand-logo strong {
  color: var(--krn-accent);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-weight: 750;
  color: var(--krn-text);
}

.site-nav a {
  opacity: 0.82;
  transition: 0.2s ease;
}

.site-nav a:hover {
  color: var(--krn-primary);
  opacity: 1;
}

/* Buttons */

.header-cta,
.primary-btn,
.secondary-btn {
  border: 0;
  border-radius: 999px;
  padding: 13px 18px;
  font-weight: 850;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  cursor: pointer;
  font-family: inherit;
  transition: 0.2s ease;
}

.header-cta,
.primary-btn {
  background: var(--krn-primary);
  color: var(--krn-white);
  box-shadow: 0 16px 32px rgba(10, 37, 64, 0.2);
}

.header-cta:hover,
.primary-btn:hover {
  transform: translateY(-2px);
  background: var(--krn-primary-dark);
}

.secondary-btn {
  background: var(--krn-white);
  color: var(--krn-primary);
  border: 1px solid var(--krn-border);
}

.secondary-btn:hover {
  transform: translateY(-2px);
  border-color: var(--krn-accent);
}

/* Grundlayout */

.hero,
.section,
.contact-section,
.site-footer {
  width: min(var(--container), calc(100% - 32px));
  margin: 0 auto;
}

/* Hero */

.hero {
  min-height: auto;
  padding: 82px 0 72px;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  align-items: center;
  gap: 54px;
}

.eyebrow {
  margin: 0 0 18px;
  color: var(--krn-primary);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  display: inline-flex;
  align-items: center;
  gap: 9px;
}

.eyebrow i {
  color: var(--krn-accent);
}

.hero h1 {
  margin: 0;
  color: var(--krn-primary);
  font-size: clamp(3rem, 7vw, 5.7rem);
  line-height: 0.96;
  letter-spacing: -0.075em;
}

.hero h1 span {
  color: var(--krn-accent);
}

.hero-text {
  max-width: 620px;
  margin: 28px 0 0;
  color: var(--krn-text);
  font-size: clamp(1.08rem, 1.7vw, 1.32rem);
  line-height: 1.55;
}

.hero-actions {
  margin-top: 34px;
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.hero-card {
  max-width: 450px;
  justify-self: end;
  padding: 30px;
  border-radius: var(--radius-lg);
  background:
    radial-gradient(circle at top right, var(--krn-soft-strong), transparent 36%),
    var(--krn-white);
  border: 1px solid var(--krn-border);
  box-shadow: 0 24px 58px rgba(10, 37, 64, 0.12);
}

.code-logo {
  width: 100%;
  aspect-ratio: 1.35 / 1;
  border-radius: 24px;
  background: linear-gradient(135deg, var(--krn-primary), var(--krn-primary-dark));
  color: var(--krn-white);
  display: grid;
  place-items: center;
  font-family: "Chakra Petch", Inter, system-ui, sans-serif;
  font-size: clamp(2rem, 4vw, 3.3rem);
  font-weight: 900;
  letter-spacing: -0.07em;
}

.code-logo strong {
  color: var(--krn-accent);
}

.hero-card p {
  margin: 22px 0 0;
  font-size: 1.02rem;
  line-height: 1.55;
}

.hero-tags {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.hero-tags span {
  padding: 9px 12px;
  border-radius: 999px;
  background: var(--krn-soft);
  color: var(--krn-primary);
  font-weight: 800;
  font-size: 0.88rem;
}

.hero-tags i {
  color: var(--krn-accent);
}

.hero-services {
    display: flex;
    flex-direction: column;
    gap: 16px;
    margin-bottom: 24px;
}

.hero-service {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 14px 16px;
    border-radius: 16px;
    background: linear-gradient(
        135deg,
        rgba(10, 37, 64, 0.95),
        rgba(7, 27, 48, 1)
    );
    color: #ffffff;
}

.hero-service i {
    width: 42px;
    height: 42px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0, 180, 216, 0.15);
    color: var(--krn-accent);
    flex-shrink: 0;
}

.hero-service div {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.hero-service strong {
    font-size: 1rem;
    font-weight: 800;
    color: #ffffff;
}

.hero-service span {
    font-size: 0.9rem;
    color: rgba(255,255,255,0.75);
}

/* Sections */

.section {
  padding: 72px 0;
}

.section-soft {
  width: 100%;
  max-width: none;
  padding: 72px max(16px, calc((100vw - var(--container)) / 2));
  background: var(--krn-white);
}

.section-heading {
  max-width: 720px;
  margin-bottom: 34px;
}

.section-heading h2,
.contact-content h2 {
  margin: 0;
  color: var(--krn-primary);
  font-size: clamp(2.1rem, 4vw, 3.25rem);
  line-height: 1.05;
  letter-spacing: -0.055em;
}

.section-heading p:not(.eyebrow),
.contact-content p {
  margin: 16px 0 0;
  font-size: 1.06rem;
  line-height: 1.6;
  color: rgba(43, 45, 66, 0.82);
}

/* Cards */

.card-grid,
.project-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.steps-grid,
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.service-card,
.project-card,
.step-card,
.value-grid article {
  min-width: 0;
  min-height: 190px;
  padding: 28px;
  border-radius: var(--radius-md);
  background: var(--krn-white);
  border: 1px solid var(--krn-border);
  box-shadow: 0 14px 34px rgba(10, 37, 64, 0.07);
}

.steps-grid .step-card {
  min-height: 205px;
}

.section-soft .step-card,
.section-soft .project-card {
  background: var(--krn-bg);
}

.service-card > i,
.value-grid article > i {
  width: 54px;
  height: 54px;
  margin-bottom: 22px;
  border-radius: 18px;
  display: grid;
  place-items: center;
  background: var(--krn-soft);
  color: var(--krn-primary);
  font-size: 1.35rem;
}

.service-card h3,
.project-card h3,
.step-card h3,
.value-grid h3 {
  margin: 0 0 12px;
  color: var(--krn-primary);
  font-size: 1.35rem;
}

.service-card p,
.project-card p,
.step-card p,
.value-grid p {
  margin: 0;
  color: rgba(43, 45, 66, 0.8);
  line-height: 1.55;
}

.step-card span {
  display: inline-flex;
  margin-bottom: 22px;
  color: var(--krn-accent);
  font-size: 0.95rem;
  font-weight: 950;
}

.project-type {
  display: inline-flex;
  margin-bottom: 18px;
  padding: 7px 11px;
  border-radius: 999px;
  background: var(--krn-soft);
  color: var(--krn-primary);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.project-card-empty {
  background:
    radial-gradient(circle at top right, rgba(0, 180, 216, 0.22), transparent 34%),
    var(--krn-primary) !important;
  color: var(--krn-white);
}

.project-card-empty h3,
.project-card-empty p {
  color: var(--krn-white);
}

.project-card-empty .project-type {
  background: rgba(255, 255, 255, 0.12);
  color: var(--krn-white);
}

.project-card-empty a {
  margin-top: 22px;
  display: inline-flex;
  align-items: center;
  gap: 9px;
  color: var(--krn-accent);
  font-weight: 900;
}

/* Kontakt */

.contact-section {
  max-width: 980px;
  margin-top: 64px;
  margin-bottom: 64px;
  padding: 38px;
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg, var(--krn-primary), var(--krn-primary-dark));
  color: var(--krn-white);
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 42px;
  align-items: start;
}

.contact-section .eyebrow,
.contact-section .eyebrow i,
.contact-content h2,
.contact-content p {
  color: var(--krn-white);
}

.contact-content h2 {
  font-size: clamp(2rem, 4vw, 3.1rem);
}

.contact-note {
  margin-top: 26px;
  display: inline-flex;
  align-items: flex-start;
  gap: 10px;
  max-width: 360px;
  color: rgba(255, 255, 255, 0.78);
  font-weight: 800;
  line-height: 1.45;
}

.contact-note i {
  margin-top: 3px;
  color: var(--krn-accent);
}

.contact-form {
  display: grid;
  gap: 16px;
}

.contact-form label {
  display: grid;
  gap: 8px;
  font-weight: 800;
}

.contact-form input,
.contact-form textarea {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 16px;
  padding: 15px 16px;
  background: rgba(255, 255, 255, 0.08);
  color: var(--krn-white);
  font: inherit;
  outline: none;
}

.contact-form textarea {
  height: 115px;
  min-height: 115px;
  max-height: 115px;
  resize: none;
}

.contact-form input::placeholder,
.contact-form textarea::placeholder {
  color: rgba(255, 255, 255, 0.58);
}

.contact-form input:focus,
.contact-form textarea:focus {
  border-color: var(--krn-accent);
  box-shadow: 0 0 0 4px rgba(0, 180, 216, 0.16);
}

.contact-form .primary-btn {
  background: var(--krn-accent);
  color: var(--krn-primary);
  box-shadow: none;
}

.contact-form .primary-btn:hover {
  background: var(--krn-white);
  color: var(--krn-primary);
  transform: translateY(-2px);
  box-shadow: 0 12px 24px rgba(0,180,216,.25);
}

.hp-field {
  position: absolute;
  left: -9999px;
  opacity: 0;
  pointer-events: none;
}

.form-status {
  display: none;
  padding: 14px 16px;
  margin-bottom: 16px;
  border-radius: 16px;
  font-weight: 800;
  line-height: 1.45;
}

.form-status.is-visible {
  display: block;
}

.form-status.success {
  background: rgba(0, 180, 216, 0.16);
  color: var(--krn-white);
  border: 1px solid rgba(0, 180, 216, 0.35);
}

.form-status.error {
  background: rgba(230, 57, 70, 0.16);
  color: var(--krn-white);
  border: 1px solid rgba(230, 57, 70, 0.35);
}

/* Footer */

.site-footer {
  padding: 34px 0 44px;
  border-top: 1px solid var(--krn-border);
  display: flex;
  justify-content: space-between;
  gap: 24px;
  align-items: center;
}

.site-footer p {
  margin: 8px 0 0;
  color: rgba(43, 45, 66, 0.7);
}

.footer-links {
  display: flex;
  gap: 20px;
  font-weight: 800;
  color: var(--krn-primary);
}

.footer-copy {
  margin-top: 10px;
  font-size: 0.85rem;
  color: rgba(43, 45, 66, 0.55);
}

.legal-card {
    padding: 40px;
    background: var(--krn-white);
    border: 1px solid var(--krn-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 14px 34px rgba(10, 37, 64, 0.07);
}

.legal-card h2 {
    margin-top: 0;
    color: var(--krn-primary);
}

.legal-card hr {
    margin: 32px 0;
    border: none;
    border-top: 1px solid var(--krn-border);
}

.legal-card a {
    color: var(--krn-accent);
    font-weight: 700;
}

@media (max-width: 720px) {
    .legal-card {
        padding: 24px;
    }
}

/* Tablet */

@media (max-width: 960px) {
  .hero,
  .contact-section {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 70px;
  }

  .hero-card {
    max-width: none;
    justify-self: stretch;
  }

  .card-grid,
  .project-grid,
  .steps-grid,
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .site-nav {
    gap: 16px;
  }
}

/* Mobile */

@media (max-width: 720px) {
  :root {
    --header-offset: 155px;
  }

  .site-header {
    width: min(100% - 20px, var(--container));
    margin-top: 10px;
    border-radius: 24px;
    flex-wrap: wrap;
  }

  .brand-logo {
    width: 100%;
  }

  .site-nav {
    order: 3;
    width: 100%;
    justify-content: space-between;
    padding-top: 4px;
  }

  .header-cta {
    position: absolute;
    top: 12px;
    right: 12px;
    padding: 10px 13px;
    font-size: 0.86rem;
  }

  .hero {
    min-height: auto;
    padding: 48px 0 42px;
    gap: 34px;
  }

  .hero h1 {
    font-size: clamp(3rem, 14vw, 4.2rem);
  }

  .hero-text {
    font-size: 1.08rem;
  }

  .hero-actions,
  .site-footer {
    flex-direction: column;
    align-items: stretch;
  }

  .primary-btn,
  .secondary-btn {
    width: 100%;
  }

  .card-grid,
  .project-grid,
  .steps-grid,
  .value-grid {
    grid-template-columns: 1fr;
  }

  .section,
  .section-soft {
    padding-top: 54px;
    padding-bottom: 54px;
  }

  .service-card,
  .project-card,
  .step-card,
  .value-grid article {
    min-height: auto;
  }

  .code-logo {
    aspect-ratio: 1.7 / 1;
  }

  .contact-section {
    margin-top: 48px;
    margin-bottom: 48px;
    padding: 24px;
    border-radius: 24px;
  }
}

/* iPhone / kleine Geräte */

@media (max-width: 430px) {
  .hero,
  .section,
  .contact-section,
  .site-footer {
    width: min(100% - 22px, var(--container));
  }

  .section-soft {
    padding-left: 11px;
    padding-right: 11px;
  }

  .site-header {
    border-radius: 22px;
  }

  .hero-card,
  .service-card,
  .project-card,
  .step-card,
  .value-grid article {
    padding: 22px;
  }

  .hero h1 {
    font-size: clamp(2.7rem, 13vw, 3.7rem);
  }

  .section-heading h2,
  .contact-content h2 {
    font-size: 2.25rem;
  }

  .hero-text,
  .section-heading p:not(.eyebrow),
  .contact-content p {
    font-size: 1rem;
  }

  .site-nav a {
    font-size: 0.92rem;
  }

  .header-cta {
    font-size: 0.78rem;
  }
}