/* ---------- Grundlagen ---------- */
:root {
  --color-primary: #123e6b;
  --color-primary-light: #1d5a99;
  --color-accent: #1f9d6b;
  --color-accent-dark: #157a53;
  --color-bg: #f5f8fb;
  --color-surface: #ffffff;
  --color-text: #16212e;
  --color-text-muted: #4c5a68;
  --color-border: #e1e7ee;
  --radius: 16px;
  --shadow: 0 10px 30px rgba(18, 62, 107, 0.08);
  --max-width: 1180px;
  --font-base: "Segoe UI", system-ui, -apple-system, Roboto, Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.65;
  font-size: 1.05rem;
}

h1, h2, h3 {
  line-height: 1.25;
  margin: 0 0 0.6em;
  color: var(--color-primary);
}

h1 {
  font-size: clamp(2rem, 4vw + 1rem, 3.2rem);
}

h2 {
  font-size: clamp(1.6rem, 2.5vw + 1rem, 2.3rem);
}

h3 {
  font-size: 1.25rem;
}

p {
  margin: 0 0 1em;
  color: var(--color-text-muted);
}

a {
  color: var(--color-primary-light);
}

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

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

section[id] {
  scroll-margin-top: 90px;
}

.center {
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.eyebrow {
  color: var(--color-accent-dark);
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  font-size: 0.85rem;
  margin-bottom: 0.5em;
}

.section-lead {
  max-width: 640px;
  font-size: 1.1rem;
}

.section {
  padding: 4.5rem 0;
}

.section-alt {
  background: var(--color-surface);
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  padding: 0.85rem 1.7rem;
  border-radius: 999px;
  font-weight: 600;
  text-decoration: none;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  font-size: 1rem;
}

.btn:hover,
.btn:focus-visible {
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--color-accent);
  color: #fff;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-accent-dark);
}

.btn-outline {
  background: transparent;
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.btn-outline:hover,
.btn-outline:focus-visible {
  background: var(--color-primary);
  color: #fff;
}

.btn-light {
  background: #fff;
  color: var(--color-primary);
}

.btn-light:hover,
.btn-light:focus-visible {
  background: #eef4fb;
}

.btn-lg {
  padding: 1rem 2rem;
  font-size: 1.05rem;
}

.btn-block {
  width: 100%;
  justify-content: center;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(6px);
  border-bottom: 1px solid transparent;
  transition: box-shadow 0.2s ease, border-color 0.2s ease;
}

.site-header.is-scrolled {
  box-shadow: 0 4px 16px rgba(18, 62, 107, 0.08);
  border-bottom-color: var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 1rem;
  padding-bottom: 1rem;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 1.1rem;
}

.logo-icon {
  font-size: 1.7rem;
}

.logo-text strong {
  color: var(--color-accent-dark);
}

.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: none;
  border: none;
  cursor: pointer;
  z-index: 110;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 3px;
  background: var(--color-primary);
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

.main-nav {
  position: fixed;
  inset: 0 0 0 30%;
  background: #fff;
  padding: 6rem 2rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
  transform: translateX(100%);
  transition: transform 0.25s ease;
  z-index: 105;
  overflow-y: auto;
}

.main-nav.is-open {
  transform: translateX(0);
  box-shadow: -10px 0 30px rgba(0, 0, 0, 0.15);
}

.main-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.nav-link {
  text-decoration: none;
  color: var(--color-text);
  font-weight: 600;
  font-size: 1.15rem;
}

.nav-cta {
  align-self: flex-start;
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(160deg, #0f2d4e 0%, var(--color-primary) 55%, var(--color-primary-light) 100%);
  color: #fff;
  padding: 4rem 0 5rem;
}

.hero-inner {
  display: grid;
  gap: 2.5rem;
  align-items: center;
}

.hero-text .eyebrow {
  color: #8fd8b8;
}

.hero h1 {
  color: #fff;
}

.hero h1 span {
  color: #8fd8b8;
}

.hero-lead {
  color: #dce6f0;
  font-size: 1.15rem;
  max-width: 46ch;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.5rem 0;
}

.hero .btn-outline {
  border-color: #fff;
  color: #fff;
}

.hero .btn-outline:hover,
.hero .btn-outline:focus-visible {
  background: #fff;
  color: var(--color-primary);
}

.trust-line {
  list-style: none;
  margin: 1rem 0 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.5rem;
  color: #cfe0ee;
  font-size: 0.95rem;
}

.hero-graphic {
  position: relative;
  min-height: 260px;
  display: none;
}

.hero-blob {
  width: 240px;
  height: 240px;
  margin: 0 auto;
  border-radius: 45% 55% 60% 40% / 50% 45% 55% 50%;
  background: linear-gradient(135deg, #2a6fb0, #1f9d6b);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow);
}

.hero-emoji {
  font-size: 5rem;
}

.floating-card {
  position: absolute;
  background: #fff;
  color: var(--color-text);
  padding: 0.6rem 1rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  box-shadow: var(--shadow);
}

.card-1 { top: 5%; left: 0; }
.card-2 { bottom: 10%; left: -5%; }
.card-3 { top: 45%; right: -5%; }

/* ---------- Cards / Grids ---------- */
.card-grid {
  display: grid;
  gap: 1.5rem;
  grid-template-columns: 1fr;
  margin-top: 2.5rem;
}

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow);
}

.section-alt .card {
  background: var(--color-bg);
}

.card-icon {
  font-size: 2rem;
  display: inline-block;
  margin-bottom: 0.8rem;
}

.card h3 {
  margin-bottom: 0.4em;
}

.card p {
  margin: 0;
}

/* Steps */
.steps {
  display: grid;
  gap: 2rem;
  margin-top: 2.5rem;
}

.step {
  text-align: center;
  padding: 0 1rem;
}

.step-number {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  background: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.3rem;
  margin: 0 auto 1rem;
}

/* Feature grid */
.feature-grid {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: 1fr;
  margin-top: 2.5rem;
  text-align: center;
}

.feature-icon {
  font-size: 2.2rem;
  display: inline-block;
  margin-bottom: 0.6rem;
}

/* ---------- CTA banner ---------- */
.cta-banner {
  background: linear-gradient(120deg, var(--color-accent-dark), var(--color-accent));
  color: #fff;
  padding: 3.5rem 0;
}

.cta-banner-inner {
  text-align: center;
}

.cta-banner h2 {
  color: #fff;
}

.cta-banner p {
  color: #eafff3;
  max-width: 50ch;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- Contact ---------- */
.contact-grid {
  display: grid;
  gap: 2.5rem;
  margin-top: 2.5rem;
}

.contact-info {
  display: grid;
  gap: 1.5rem;
  align-content: start;
}

.contact-item {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.2rem 1.4rem;
}

.contact-icon {
  font-size: 1.6rem;
}

.contact-item h3 {
  margin: 0 0 0.2em;
  font-size: 1rem;
}

.contact-item p {
  margin: 0;
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.8rem;
  box-shadow: var(--shadow);
}

.form-row {
  margin-bottom: 1.2rem;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-row label {
  font-weight: 600;
  font-size: 0.95rem;
}

.form-row input,
.form-row textarea {
  font: inherit;
  padding: 0.7rem 0.9rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-bg);
}

.form-row input:focus,
.form-row textarea:focus {
  outline: 3px solid var(--color-accent);
  outline-offset: 1px;
}

.form-note {
  margin: 0.8rem 0 0;
  font-size: 0.9rem;
  color: var(--color-accent-dark);
  min-height: 1.2em;
}

.form-note.is-error {
  color: #b3261e;
}

.honeypot-field {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* ---------- Footer ---------- */
.site-footer {
  background: #0f2d4e;
  color: #cfe0ee;
  padding: 2rem 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  align-items: center;
  text-align: center;
}

.footer-nav a {
  color: #cfe0ee;
  margin: 0 0.7rem;
  text-decoration: none;
}

.footer-nav a:hover {
  text-decoration: underline;
}

/* ---------- Focus visibility ---------- */
a:focus-visible,
button:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- Tablet ---------- */
@media (min-width: 640px) {
  .card-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

/* ---------- Desktop ---------- */
@media (min-width: 900px) {
  .nav-toggle {
    display: none;
  }

  .main-nav {
    position: static;
    transform: none;
    background: transparent;
    flex-direction: row;
    align-items: center;
    padding: 0;
    gap: 2rem;
    overflow: visible;
  }

  .main-nav ul {
    flex-direction: row;
    gap: 1.8rem;
  }

  .hero-inner {
    grid-template-columns: 1.1fr 0.9fr;
  }

  .hero-graphic {
    display: block;
  }

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

  .feature-grid {
    grid-template-columns: repeat(4, 1fr);
  }

  .contact-grid {
    grid-template-columns: 0.9fr 1.1fr;
  }
}

@media (min-width: 1100px) {
  h1 {
    max-width: 16ch;
  }
}