/* ============================================
   Plaantiet – Onepager
   Design angelehnt an PDF "Mappe ConventionCenterHannover"
   ============================================ */

:root {
  /* Farben */
  --navy: #0c1e3d;
  --navy-mid: #152a4a;
  --navy-light: #1c3358;
  --primary: #333b8f;
  --secondary: #919cc4;
  --accent: #e8ecf4;
  --white: #ffffff;
  --offwhite: #f4f6fa;
  --text: #2a2a2a;
  --text-muted: #555d6b;

  /* Typografie – System-Stack, DSGVO-konform */
  --font: 'Segoe UI', system-ui, -apple-system, sans-serif;
  --font-script: 'Brush Script MT', 'Segoe Script', 'Apple Chancery', cursive;

  --fs-hero:  clamp(2.25rem, 5vw, 3.25rem);
  --fs-h2:    clamp(1.625rem, 3vw, 2.125rem);
  --fs-h3:    clamp(1.125rem, 2vw, 1.375rem);
  --fs-body:  1rem;
  --fs-small: 0.875rem;
  --fs-xs:    0.8125rem;

  --lh-body:    1.7;
  --lh-heading: 1.3;

  --max-w: 1100px;
  --nav-h: 56px;
  --transition: 0.3s ease;
}

/* === Reset === */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; scroll-padding-top: var(--nav-h); }

body {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: opacity var(--transition);
}
a:hover { opacity: 0.8; }

ul, ol { list-style: none; }

h1, h2, h3, h4 {
  line-height: var(--lh-heading);
  font-weight: 700;
}

p { margin-bottom: 0; }

/* === Utilities === */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.skip-link {
  position: absolute; top: -100%; left: 1rem;
  padding: 0.5rem 1rem; background: var(--primary); color: var(--white);
  border-radius: 4px; z-index: 9999; font-weight: 600;
}
.skip-link:focus { top: 0.5rem; }

/* === Buttons === */
.btn {
  display: inline-block;
  padding: 0.8rem 2.25rem;
  border: 2px solid var(--white);
  border-radius: 4px;
  font-size: var(--fs-body);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: all var(--transition);
  text-align: center;
  letter-spacing: 0.01em;
}

.btn--white {
  background: var(--white);
  color: var(--navy);
}

.btn--white:hover {
  background: transparent;
  color: var(--white);
  opacity: 1;
}

.btn--outline {
  background: transparent;
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  border-color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  opacity: 1;
}

/* === Script-Font (wie Logo-BrushScript) === */
/* BrushScript hat ~30% kleinere optische Größe als Segoe UI,
   daher grundsätzlich hochskalieren. Nur für Akzent-Texte
   verwenden, nie für kleinen Fließtext. */
.script-font {
  font-family: var(--font-script);
  font-style: normal;
  font-weight: 400;
  font-size: 1.35em;
  line-height: 1.1;
}

/* === Sections === */
.section {
  padding: clamp(3rem, 6vw, 4.5rem) 0;
}

.section__heading {
  font-size: var(--fs-h2);
  color: var(--navy);
  margin-bottom: 0.75rem;
}

.section__heading--light {
  color: var(--white);
}

.section__lead {
  color: var(--text-muted);
  max-width: 680px;
  margin-bottom: 2rem;
  line-height: var(--lh-body);
}

.circle-img {
  border-radius: 50%;
  object-fit: cover;
  aspect-ratio: 1;
}

/* ============================================
   NAVIGATION
   ============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  background: var(--navy);
  z-index: 1000;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.nav {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  gap: 1rem;
}

.nav__logo {
  display: flex;
  align-items: center;
}

.nav__logo-img {
  height: 38px;
  width: auto;
  filter: brightness(0) invert(1);
}

.nav__menu {
  position: fixed;
  top: 0; right: 0; bottom: 0;
  width: min(280px, 80vw);
  background: var(--navy);
  padding: calc(var(--nav-h) + 2rem) 1.5rem 2rem;
  display: flex;
  flex-direction: column;
  gap: 0;
  transform: translateX(100%);
  transition: transform var(--transition);
  z-index: 1000;
}

.nav__menu.open { transform: translateX(0); }

.nav__link {
  display: block;
  padding: 0.75rem 0;
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--fs-body);
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: color var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: var(--white);
  opacity: 1;
}

.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px; height: 32px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 2px;
  margin-left: auto;
  z-index: 1001;
}

.nav__hamburger-line {
  display: block;
  width: 100%; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(2) {
  opacity: 0;
}
.nav__hamburger[aria-expanded="true"] .nav__hamburger-line:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

@media (min-width: 900px) {
  .nav__hamburger { display: none; }

  .nav__menu {
    position: static;
    width: auto;
    background: none;
    padding: 0;
    flex-direction: row;
    gap: 0;
    transform: none;
    margin-left: auto;
  }

  .nav__link {
    padding: 0.35rem 0.875rem;
    font-size: var(--fs-small);
    border-bottom: none;
  }
}

/* ============================================
   HERO – Zwei-Spalten, am Container ausgerichtet
   ============================================ */
.hero {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--navy);
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  background: linear-gradient(160deg, var(--navy) 0%, var(--navy-mid) 100%);
}

.hero__content {
  position: relative;
  z-index: 1;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding-top: 3rem;
  padding-bottom: 2.5rem;
  gap: 2rem;
}

.hero__text {
  max-width: 540px;
}

.hero__claim {
  color: var(--secondary);
  font-style: italic;
  font-size: var(--fs-small);
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}

.hero__title {
  font-size: var(--fs-hero);
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.hero__title em {
  color: var(--secondary);
  font-size: 1.2em;
  line-height: 1;
}

.hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.hero__subtitle {
  color: rgba(255, 255, 255, 0.6);
  font-size: 1.0625rem;
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

/* Zwei Kreise – überlappend */
.hero__circles {
  position: relative;
  width: 100%;
  max-width: 340px;
  aspect-ratio: 1.15;
  flex-shrink: 0;
}

.hero__circle {
  position: absolute;
  border-radius: 50%;
  overflow: hidden;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.25);
}

.hero__circle img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.hero__circle--large {
  width: 70%;
  aspect-ratio: 1;
  top: 0;
  left: 4%;
}

.hero__circle--small {
  width: 52%;
  aspect-ratio: 1;
  bottom: 0;
  right: 4%;
  border: 4px solid var(--navy);
}

@media (min-width: 900px) {
  .hero__content {
    flex-direction: row;
    text-align: left;
    align-items: center;
    padding-top: 4rem;
    padding-bottom: 3.5rem;
    gap: 3rem;
  }

  .hero__text {
    flex: 1;
    max-width: none;
  }

  .hero__circles {
    max-width: 380px;
  }
}

/* Vorteile-Leiste */
.hero__benefits-bar {
  position: relative;
  z-index: 1;
  background: rgba(255, 255, 255, 0.05);
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  padding: 1.75rem 0;
}

.hero__benefits {
  display: grid;
  gap: 1.5rem;
}

.hero__benefit strong {
  display: block;
  color: var(--white);
  font-size: var(--fs-small);
  margin-bottom: 0.25rem;
}

.hero__benefit span {
  color: rgba(255, 255, 255, 0.45);
  font-size: var(--fs-xs);
  line-height: 1.55;
}

@media (min-width: 600px) {
  .hero__benefits {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* ============================================
   ÜBER PLAANTIET
   ============================================ */

/* 4er-Grid */
.ueber__grid {
  display: grid;
  gap: 1.75rem;
  margin-bottom: 3.5rem;
  padding-bottom: 3.5rem;
  border-bottom: 1px solid var(--accent);
}

.ueber__item {
  display: flex;
  gap: 0.875rem;
  align-items: flex-start;
}

.ueber__num {
  font-size: 1.625rem;
  font-weight: 700;
  color: var(--navy);
  line-height: 1.2;
  flex-shrink: 0;
  width: 2rem;
}

.ueber__item h3 {
  font-size: var(--fs-h3);
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.ueber__item p {
  color: var(--text-muted);
  font-size: var(--fs-small);
  line-height: var(--lh-body);
}

@media (min-width: 700px) {
  .ueber__grid {
    grid-template-columns: 1fr 1fr;
    gap: 2.5rem 3.5rem;
  }
}

/* Großer Kreis + "Was können Sie erwarten?" */
.ueber__expect {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
}

.ueber__expect-circle {
  flex-shrink: 0;
}

.ueber__expect-circle .circle-img {
  width: 280px;
  height: 280px;
}

.ueber__expect-text h3 {
  font-size: var(--fs-h2);
  color: var(--navy);
  margin-bottom: 1rem;
}

.ueber__expect-text h3 em {
  color: var(--primary);
  font-size: 1.25em;
  line-height: 1;
}

.ueber__expect-text > p {
  color: var(--text-muted);
  margin-bottom: 1.25rem;
  line-height: var(--lh-body);
}

.ueber__expect-list {
  display: flex;
  flex-direction: column;
  gap: 0.625rem;
}

.ueber__expect-list li {
  position: relative;
  padding-left: 1.25rem;
  color: var(--text);
  line-height: 1.55;
}

.ueber__expect-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--primary);
}

@media (min-width: 900px) {
  .ueber__expect {
    flex-direction: row;
    align-items: center;
    gap: 3.5rem;
  }

  .ueber__expect-circle .circle-img {
    width: 360px;
    height: 360px;
  }
}


/* ============================================
   LEISTUNGEN – Karten-Layout
   ============================================ */
.leistungen {
  background: var(--offwhite);
}

.leistungen__cards {
  display: grid;
  gap: 2rem;
}

.leistungen__card {
  background: var(--white);
  border-radius: 8px;
  padding: 2rem;
  box-shadow: 0 2px 16px rgba(12, 30, 61, 0.06);
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 1.5rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.leistungen__card:hover {
  box-shadow: 0 6px 28px rgba(12, 30, 61, 0.1);
  transform: translateY(-2px);
}

.leistungen__card-visual {
  position: relative;
  flex-shrink: 0;
}

.leistungen__card-visual .circle-img {
  width: 200px;
  height: 200px;
  box-shadow: 0 4px 20px rgba(12, 30, 61, 0.1);
}

.leistungen__card-num {
  position: absolute;
  top: -4px;
  right: -4px;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--navy);
  color: var(--white);
  font-size: var(--fs-small);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(12, 30, 61, 0.2);
}

.leistungen__card-body h3 {
  font-size: var(--fs-h3);
  color: var(--navy);
  margin-bottom: 0.5rem;
}

.leistungen__card-body p {
  color: var(--text-muted);
  line-height: var(--lh-body);
}

@media (min-width: 600px) {
  .leistungen__card {
    flex-direction: row;
    text-align: left;
    align-items: center;
    padding: 2rem 2.5rem;
    gap: 2rem;
  }

  .leistungen__card-visual .circle-img {
    width: 180px;
    height: 180px;
  }
}

@media (min-width: 900px) {
  .leistungen__card-visual .circle-img {
    width: 200px;
    height: 200px;
  }
}

.leistungen__credits {
  text-align: right;
  font-size: var(--fs-xs);
  color: var(--text-muted);
  font-style: italic;
  margin-top: 2rem;
}

/* ============================================
   PERSÖNLICHE VORSTELLUNG
   ============================================ */
.person {
  background: var(--offwhite);
}

.person__layout {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2rem;
  text-align: center;
}

.circle-img--portrait {
  border: 4px solid rgba(145, 156, 196, 0.25);
  box-shadow: 0 4px 24px rgba(51, 59, 143, 0.1);
  width: 220px;
  height: 220px;
}

.person__role {
  color: var(--secondary);
  font-weight: 600;
  margin-bottom: 1rem;
}

.person__text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  line-height: var(--lh-body);
}

.person__text p:last-child {
  margin-bottom: 0;
}

@media (min-width: 900px) {
  .person__layout {
    flex-direction: row;
    text-align: left;
    align-items: flex-start;
    gap: 3rem;
  }

  .circle-img--portrait {
    width: 260px;
    height: 260px;
  }

  .person__image {
    flex-shrink: 0;
  }
}

/* ============================================
   KONTAKT
   ============================================ */
.kontakt {
  background: var(--navy);
  color: var(--white);
}

.kontakt__grid {
  display: grid;
  gap: 3rem;
}

@media (min-width: 900px) {
  .kontakt__grid {
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
  }
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-size: var(--fs-small);
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: rgba(255, 255, 255, 0.85);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid rgba(255, 255, 255, 0.15);
  border-radius: 4px;
  background: rgba(255, 255, 255, 0.06);
  color: var(--white);
  font-family: inherit;
  font-size: var(--fs-body);
  line-height: 1.5;
  transition: border-color var(--transition), background var(--transition);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--secondary);
  background: rgba(255, 255, 255, 0.1);
}

.kontakt__form .btn {
  width: 100%;
  margin-top: 0.5rem;
}

.kontakt__success {
  text-align: center;
  padding: 2rem;
}

.kontakt__success svg {
  width: 44px;
  height: 44px;
  stroke: #6fcf97;
  margin-bottom: 1rem;
}

.kontakt__info h3 {
  font-size: var(--fs-h3);
  margin-bottom: 0.75rem;
  color: var(--white);
}

.kontakt__details {
  margin-bottom: 2rem;
}

.kontakt__details li {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.75rem;
  font-size: var(--fs-body);
}

.kontakt__details svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  stroke: var(--secondary);
}

.kontakt__details a { color: var(--white); }
.kontakt__details a:hover { color: var(--secondary); opacity: 1; }

/* Prozess-Timeline */
.kontakt__steps {
  position: relative;
  padding-left: 0;
}

.kontakt__steps::before {
  content: '';
  position: absolute;
  left: 15px;
  top: 32px;
  bottom: 14px;
  width: 2px;
  background: rgba(145, 156, 196, 0.2);
}

.kontakt__steps li {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
  position: relative;
}

.kontakt__step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--white);
  font-size: var(--fs-small);
  font-weight: 700;
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.kontakt__steps li p {
  color: rgba(255, 255, 255, 0.75);
  padding-top: 0.35rem;
  line-height: 1.55;
}

/* ============================================
   FOOTER
   ============================================ */
.site-footer {
  background: #080e1e;
  color: rgba(255, 255, 255, 0.5);
  padding-top: 2.5rem;
}

.footer__grid {
  display: grid;
  gap: 1.5rem;
  padding-bottom: 1.5rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

@media (min-width: 600px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr;
  }
}

.footer__logo {
  margin-bottom: 0.5rem;
  filter: brightness(0) invert(1);
  opacity: 0.5;
  height: 26px;
  width: auto;
}

.footer__brand p {
  font-size: var(--fs-small);
  line-height: 1.6;
}

.footer__links h4,
.footer__legal h4 {
  color: rgba(255, 255, 255, 0.8);
  font-size: var(--fs-xs);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.5rem;
}

.footer__links a,
.footer__legal a {
  display: block;
  color: rgba(255, 255, 255, 0.4);
  font-size: var(--fs-small);
  padding: 0.2rem 0;
}

.footer__links a:hover,
.footer__legal a:hover {
  color: var(--white);
  opacity: 1;
}

.footer__bottom {
  padding: 1rem 1.5rem;
  text-align: center;
  font-size: var(--fs-xs);
}

/* ============================================
   MODALS
   ============================================ */
.modal {
  position: fixed;
  inset: 0;
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition), visibility var(--transition);
}

.modal[hidden] { display: flex; }
.modal.open { opacity: 1; visibility: visible; }

.modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.modal__content {
  position: relative;
  background: var(--white);
  border-radius: 8px;
  padding: 2.5rem;
  max-width: 700px;
  width: calc(100% - 2rem);
  max-height: 80vh;
  overflow-y: auto;
  transform: translateY(16px);
  transition: transform var(--transition);
}

.modal.open .modal__content { transform: translateY(0); }

.modal__close {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  width: 32px;
  height: 32px;
  border: none;
  background: var(--offwhite);
  border-radius: 50%;
  font-size: 1.25rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text);
  transition: background var(--transition);
}

.modal__close:hover { background: var(--accent); }

.modal__content h2 {
  font-size: var(--fs-h2);
  color: var(--navy);
  margin-bottom: 1rem;
}

.modal__content p {
  color: var(--text-muted);
  line-height: var(--lh-body);
}

/* ============================================
   REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  html { scroll-behavior: auto; }
}

/* === Social Links === */
.social-links {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.6);
  transition: background var(--transition), color var(--transition);
}

.social-link:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  opacity: 1;
}

.social-link svg {
  width: 18px;
  height: 18px;
}

.social-link--small {
  width: 32px;
  height: 32px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.35);
}

.social-link--small svg {
  width: 14px;
  height: 14px;
}

.social-link--small:hover {
  background: rgba(255, 255, 255, 0.12);
  color: rgba(255, 255, 255, 0.7);
}

.kontakt__social {
  margin-bottom: 2rem;
}

.kontakt__social h3 {
  font-size: var(--fs-h3);
  margin-bottom: 0.75rem;
  color: var(--white);
}

.footer__social {
  display: flex;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 0.75rem;
}

/* === Focus === */
:focus-visible {
  outline: 2px solid var(--secondary);
  outline-offset: 2px;
}

body.nav-open { overflow: hidden; }