:root {
  --brand: #ff6b3d;
  --bg-dark: #2d2f7c;
  --bg-mid: #5c59a8;
  --text: #1f2330;
  --site-bg: #ffffff;
  --nav-background-color: #5c59a8;
  --nav-color: #ffffff;
  --nav-active-color: #ffffff;
  --nav-text-transform: none;
  --muted: #61667a;
  --border: #e9e9ef;
  --white: #ffffff;
  --button-radius: 10px;
  --font-scale: 1;
  --hero-image-url: url('/images/hero_rubiks_cube.jpg');
  --services-bg-image: none;
  --about-bg-image: none;
  --contact-bg-image: none;
  --impressum-bg-image: none;
  --page-hero-overlay-color: rgba(45, 47, 124, .86);
  --page-hero-bg-image: none;
  --privacy-button-color: #7c3aed;
  --privacy-button-text-color: #ffffff;
  --widget-menu-color: #ff6b3d;
  --widget-menu-text-color: #ffffff;
  --language-switcher-background-color: #ffffff;
  --language-switcher-text-color: #1f2330;
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Arial, sans-serif; color: var(--text); }
body { background: var(--site-bg); line-height: 1.6; font-size: calc(16px * var(--font-scale)); }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }

.container { width: min(1120px, 92%); margin: 0 auto; }
.section { padding: 64px 0; }

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
  background: var(--nav-background-color, rgba(255, 255, 255, 0.93));
  border-bottom: 1px solid var(--border);
}

.nav-wrap { display: flex; align-items: center; justify-content: space-between; min-height: 74px; gap: 16px; }
.brand { display: inline-flex; gap: 12px; align-items: center; }
.brand img { width: var(--logo-width, 240px); max-width: 72vw; height: auto; }
.brand strong { display: block; color: var(--brand); font-size: 1.1rem; letter-spacing: 0.03em; }
.brand small { display: block; font-size: .72rem; color: var(--muted); text-transform: uppercase; letter-spacing: .08em; }
.brand-mark { color: var(--brand); font-size: 1.3rem; }

.menu-toggle { border: 1px solid var(--border); background: #fff; border-radius: 10px; width: 42px; height: 42px; display: grid; place-items: center; font-size: 1.1rem; }
.main-nav {
  display: none;
  position: absolute;
  top: 74px;
  left: 0;
  right: 0;
  background: var(--nav-background-color, #fff);
  border-bottom: 1px solid var(--border);
  padding: 16px 4%;
  flex-direction: column;
  gap: 10px;
}
.main-nav.open { display: flex; }
.main-nav a { padding: 8px 4px; font-weight: 600; color: var(--nav-color); text-transform: var(--nav-text-transform); }
.main-nav a.active {
  color: var(--nav-active-color);
  text-decoration-line: underline;
  text-decoration-style: dotted;
  text-decoration-thickness: 2px;
  text-underline-offset: 7px;
}

.lang-switcher { position: relative; display: flex; align-items: center; margin-top: 4px; }
.lang-switcher.open { z-index: 80; }
.lang-toggle {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--border);
  background: var(--language-switcher-background-color);
  color: var(--language-switcher-text-color);
  display: grid;
  place-items: center;
  cursor: pointer;
  box-shadow:
    inset 0 2px 5px rgba(25, 28, 50, .15),
    inset 0 -1px 0 rgba(255, 255, 255, .85),
    0 7px 18px rgba(25, 28, 50, .07);
}
.lang-switcher.open .lang-toggle {
  position: relative;
  z-index: 72;
  box-shadow:
    inset 0 2px 5px rgba(25, 28, 50, .15),
    inset 0 -1px 0 rgba(255, 255, 255, .85);
}
.lang-options {
  position: absolute;
  left: 50%;
  top: 52px;
  transform: translateX(-50%);
  display: none;
  grid-template-columns: 44px;
  gap: 8px;
  padding: 0;
  background: transparent;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  z-index: 70;
}
.lang-switcher.open .lang-options { display: grid; }
.lang-switcher.open .lang-options .lang-switch.active { display: none; }
.lang-switch {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid var(--border);
  display: grid;
  place-items: center;
  padding: 0 !important;
  background: var(--language-switcher-background-color);
  color: var(--language-switcher-text-color);
  text-transform: none !important;
  box-shadow:
    inset 0 2px 5px rgba(25, 28, 50, .13),
    inset 0 -1px 0 rgba(255, 255, 255, .82);
}
.lang-shape-rounded .lang-toggle,
.lang-shape-rounded .lang-switch { border-radius: 14px; }
.lang-shape-rounded .lang-options { border-radius: 18px; }
.lang-shape-square .lang-toggle,
.lang-shape-square .lang-switch { border-radius: 4px; }
.lang-shape-square .lang-options { border-radius: 8px; }
.lang-code {
  font-size: .82rem;
  font-weight: 800;
  line-height: 1;
  letter-spacing: 0;
}
.lang-switch.active {
  border-color: var(--brand);
  box-shadow: inset 0 0 0 2px var(--brand);
}
.flag-roundel {
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: block;
  border: 2px solid #fff;
  box-shadow:
    0 0 0 1px rgba(25, 28, 50, .14),
    inset 0 0 0 1px rgba(25, 28, 50, .08);
  overflow: hidden;
}
.flag-de { background: linear-gradient(to bottom, #151515 0 33.33%, #dd1f2d 33.33% 66.66%, #ffcf33 66.66% 100%); }
.flag-ru { background: linear-gradient(to bottom, #fff 0 33.33%, #1f57a8 33.33% 66.66%, #d52b1e 66.66% 100%); }
.flag-fr { background: linear-gradient(to right, #1f4fa3 0 33.33%, #fff 33.33% 66.66%, #e23b3b 66.66% 100%); }
.flag-en {
  background-image: url("/images/flag_en.svg");
  background-size: 150% 100%;
  background-position: center;
}

.hero {
  min-height: 76vh;
  color: #fff;
  display: flex;
  align-items: center;
  background-image: linear-gradient(120deg, rgba(45,47,124,0.76), rgba(92,89,168,0.68)), var(--hero-image-url);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.hero-content { padding: 86px 0; max-width: 740px; }
.hero-kicker { text-transform: uppercase; letter-spacing: .15em; font-size: .8rem; opacity: .88; margin: 0 0 10px; }
.hero h1 { font-size: clamp(2rem, 8vw, 3.6rem); line-height: 1.07; margin: 0 0 12px; }
.hero p { font-size: 1.04rem; max-width: 620px; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.form-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }

.btn { display: inline-flex; align-items: center; justify-content: center; border-radius: var(--button-radius); padding: 12px 18px; min-height: 48px; font: inherit; font-size: 1rem; line-height: 1.2; font-weight: 700; transition: all .2s ease; border: 1px solid transparent; }
.btn-primary { background: var(--brand); color: #fff; }
.btn-primary:hover { transform: translateY(-1px); filter: brightness(1.04); }
.btn-secondary { background: transparent; color: #fff; border-color: rgba(255,255,255,.5); }
.btn-on-light { color: var(--text); border-color: var(--border); }

.page-hero {
  padding: 80px 0 48px;
  background-image:
    linear-gradient(120deg, var(--page-hero-overlay-color), var(--page-hero-overlay-color)),
    var(--page-hero-bg-image);
  background-color: var(--bg-mid);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  color: #fff;
}
.page-hero-small h1 { margin: 0 0 8px; font-size: clamp(1.8rem, 5vw, 2.8rem); }
.page-hero-admin .access-container,
.access-container { max-width: none; }
.admin-access-section { padding: 64px 0 72px; }
.admin-access { font-size: 1rem; }
.admin-access p { max-width: 720px; margin: 0 0 22px; color: var(--text); font-size: 1rem; line-height: 1.6; font-weight: 500; }
.admin-access .contact-form { max-width: 720px; gap: 16px; }
.admin-access .contact-form input { font-size: 1rem; min-height: 48px; }
.admin-access .form-actions { margin-top: 4px; }
.admin-access .btn-secondary.btn-on-light {
  background: var(--brand);
  color: #fff;
  border-color: var(--brand);
}
.admin-access .btn-secondary.btn-on-light:hover { transform: translateY(-1px); filter: brightness(1.04); }
.page-hero-services { --page-hero-bg-image: var(--services-bg-image); }
.page-hero-about { --page-hero-bg-image: var(--about-bg-image); }
.page-hero-contact { --page-hero-bg-image: var(--contact-bg-image); }
.page-hero-impressum { --page-hero-bg-image: var(--impressum-bg-image); }
.page-hero-admin { --page-hero-bg-image: var(--admin-bg-image); }

.split { display: grid; gap: 20px; align-items: start; }
.cards { display: grid; gap: 18px; margin-top: 28px; }
.card {
  border: 1px solid var(--border);
  border-radius: calc(var(--button-radius) + 6px);
  padding: 24px;
  background: #fff;
  box-shadow: 0 8px 28px rgba(25, 28, 50, 0.04);
}
.card-icon { display: inline-block; font-size: 1.1rem; color: var(--brand); margin-bottom: 10px; }
.card h2, .card h3 { margin: 0 0 10px; }
.card p { margin: 0; color: var(--muted); }

.advantages { list-style: none; margin: 16px 0 0; padding: 0; display: grid; gap: 10px; }
.advantages li { display: flex; gap: 10px; align-items: flex-start; }
.check-icon { color: var(--brand); margin-top: 2px; display: inline-block; font-weight: 800; }

.contact-form { max-width: 720px; display: grid; gap: 14px; }
.contact-form label { display: grid; gap: 8px; font-weight: 600; }
.contact-form input,
.contact-form textarea,
.contact-form select {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--button-radius);
  padding: 12px 14px;
  font-family: inherit;
}
.form-status { min-height: 24px; font-weight: 600; }
.form-status.success { color: #0b8b49; }
.form-status.error { color: #c62828; }

.site-footer { border-top: 1px solid var(--border); padding: 22px 0; margin-top: 16px; }
.footer-wrap { display: flex; gap: 12px; align-items: center; }

.ai-widget { position: fixed; right: 16px; bottom: 16px; z-index: 60; display: flex; flex-direction: column; align-items: flex-end; gap: 10px; }
.widget-menu {
  display: none;
  flex-direction: column;
  align-items: flex-end;
  gap: 10px;
}
.ai-widget.open .widget-menu { display: flex; }
.widget-menu-toggle,
.floating-to-top,
.ai-toggle,
.privacy-toggle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--ai-button-color);
  color: var(--ai-button-text-color);
  font-size: 1.15rem;
  box-shadow: 0 10px 26px rgba(255,107,61,.35);
  display: grid;
  place-items: center;
  text-decoration: none;
  cursor: pointer;
}
.widget-menu-toggle {
  background: var(--widget-menu-color);
  color: var(--widget-menu-text-color);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: 1px;
}
.floating-to-top {
  background: #fff;
  color: var(--text);
  border: 1px solid var(--border);
  font-size: 1.35rem;
  box-shadow: 0 10px 26px rgba(45,47,124,.16);
}
.privacy-toggle {
  background: var(--privacy-button-color);
  color: var(--privacy-button-text-color);
}
.admin-login-toggle {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  border: none;
  background: var(--admin-button-color);
  color: var(--admin-button-text-color);
  display: grid;
  place-items: center;
  font-size: 1.15rem;
  box-shadow: 0 10px 26px rgba(45,47,124,.28);
}
.ai-panel,
.privacy-panel {
  width: 260px;
  position: absolute;
  right: 66px;
  bottom: 0;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  box-shadow: 0 14px 30px rgba(35,35,56,.12);
  display: none;
}
.ai-panel.open,
.privacy-panel.open { display: block; }
.ai-panel h4,
.privacy-panel h4 { margin: 0 0 8px; }
.ai-panel p,
.privacy-panel p { margin: 0; color: var(--muted); font-size: .93rem; }
.privacy-actions { display: grid; gap: 8px; margin-top: 12px; }
.privacy-actions .btn { width: 100%; min-height: 42px; padding: 10px 12px; font-size: .92rem; }
.privacy-actions .btn-secondary.btn-on-light { color: var(--text); background: #fff; border-color: var(--border); }

.flash { margin-top: 12px; padding: 10px 12px; border-radius: 8px; font-weight: 600; }
.flash-success { background: #e8f7ed; color: #0f6f3f; border: 1px solid #caecd6; }
.flash-error { background: #fdecec; color: #912424; border: 1px solid #f6c8c8; }
.hp-field {
  position: absolute;
  left: -10000px;
  top: auto;
  width: 1px;
  height: 1px;
  overflow: hidden;
  opacity: 0;
  pointer-events: none;
}
.visually-hidden {
  position: absolute !important;
  width: 1px !important;
  height: 1px !important;
  padding: 0 !important;
  margin: -1px !important;
  overflow: hidden !important;
  clip: rect(0, 0, 0, 0) !important;
  white-space: nowrap !important;
  border: 0 !important;
}
.admin-tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 16px 0 14px;
  border-bottom: 1px solid var(--border);
}
.admin-tab {
  appearance: none;
  border: 1px solid var(--border);
  border-bottom: none;
  border-radius: 8px 8px 0 0;
  background: #fff;
  color: var(--text);
  padding: 10px 14px;
  font: inherit;
  font-weight: 700;
  cursor: pointer;
  text-decoration: none;
}
.admin-tab.active {
  background: var(--brand);
  border-color: var(--brand);
  color: #fff;
}
.admin-tab-link {
  margin-left: auto;
}
.admin-tab-panel {
  display: none;
}
.admin-tab-panel.active {
  display: block;
}
.admin-subsection {
  padding-top: 12px;
}
.timer-warning {
  color: #b00020;
}
.admin-map-placeholder {
  position: relative;
  min-height: 260px;
  border: 1px solid var(--border);
  border-radius: var(--button-radius);
  background:
    linear-gradient(135deg, rgba(92,89,168,.15), rgba(255,107,61,.10)),
    repeating-linear-gradient(0deg, rgba(31,35,48,.07) 0 1px, transparent 1px 34px),
    repeating-linear-gradient(90deg, rgba(31,35,48,.07) 0 1px, transparent 1px 34px);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-weight: 700;
}
.admin-map-placeholder i {
  position: absolute;
  width: 12px;
  height: 12px;
  border-radius: 50%;
  background: var(--brand);
  box-shadow: 0 0 0 8px rgba(255,107,61,.18);
}
.form-hint {
  color: var(--muted);
  margin: 0;
}
.color-control {
  display: grid;
  grid-template-columns: 72px 1fr;
  align-items: center;
  gap: 10px;
}
.contact-form input[type="color"] {
  width: 72px;
  height: 44px;
  padding: 2px;
  cursor: pointer;
}
.color-control span {
  border: 1px solid var(--border);
  border-radius: var(--button-radius);
  padding: 10px 12px;
  font-weight: 700;
  color: var(--text);
  background: #fff;
}
.image-upload-form {
  margin-top: 12px;
}
.image-flip {
  display: block;
  width: 100%;
  min-height: 160px;
  margin-top: 8px;
  padding: 0;
  border: 0;
  background: transparent;
  cursor: pointer;
  perspective: 900px;
}
.image-flip-inner {
  position: relative;
  display: block;
  width: 100%;
  min-height: 160px;
  border-radius: var(--button-radius);
  transform-style: preserve-3d;
  transition: transform .28s ease;
}
.image-flip.is-flipped .image-flip-inner,
.image-flip:focus .image-flip-inner {
  transform: rotateY(180deg);
}
.image-flip-front,
.image-flip-back {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  border-radius: var(--button-radius);
  overflow: hidden;
  backface-visibility: hidden;
}
.image-flip-front img {
  width: 100%;
  height: 100%;
  min-height: 160px;
  object-fit: cover;
}
.image-flip-back {
  padding: 16px;
  background: #f7f7fb;
  color: var(--text);
  transform: rotateY(180deg);
  border: 1px solid var(--border);
}
.image-flip-back code {
  white-space: normal;
  word-break: break-all;
  font-size: .92rem;
}
.range-field {
  gap: 16px;
}
.range-control {
  position: relative;
  display: block;
  padding-top: 30px;
}
.range-control input[type="range"] {
  width: 100%;
}
.range-bubble {
  position: absolute;
  left: calc(var(--range-ratio, .5) * 100%);
  top: 0;
  transform: translateX(-50%);
  min-width: 34px;
  height: 24px;
  padding: 3px 8px;
  border-radius: 999px;
  background: var(--brand);
  color: #fff;
  font-size: .78rem;
  font-weight: 800;
  line-height: 18px;
  text-align: center;
  pointer-events: none;
}
.admin-control-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}
.admin-control-card {
  border: 1px solid var(--border);
  border-radius: var(--button-radius);
  padding: 14px;
  background: #fff;
  display: grid;
  gap: 12px;
}
.admin-control-card h4 {
  margin: 0;
}
.floating-button-preview,
.language-preview {
  width: 46px;
  height: 46px;
  display: grid;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 50%;
  font-weight: 800;
  box-shadow: 0 8px 18px rgba(25, 28, 50, .10);
}
.language-preview {
  background: var(--language-switcher-background-color);
  color: var(--language-switcher-text-color);
}
.language-preview.rounded { border-radius: 14px; }
.language-preview.square { border-radius: 4px; }
.limited-table.collapsed tr:nth-child(n+11) {
  display: none;
}

.reveal { opacity: 1; transform: translateY(0); }
.js-enabled .reveal { opacity: 0; transform: translateY(16px); transition: all .55s ease; }
.js-enabled .reveal.visible { opacity: 1; transform: translateY(0); }

.legal { max-width: none; }
.legal p { white-space: pre-line; }

.section-services-bg,
.section-about-bg,
.section-contact-bg {
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
}
.section-services-bg { background-image: var(--services-bg-image); }
.section-about-bg { background-image: var(--about-bg-image); }
.section-contact-bg { background-image: var(--contact-bg-image); }

.dropzone {
  border: 2px dashed var(--border);
  padding: 14px;
  border-radius: calc(var(--button-radius) + 4px);
  text-align: center;
  color: var(--muted);
}
.dropzone.dragover {
  border-color: var(--brand);
  background: rgba(255, 107, 61, 0.08);
}
.image-gallery {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}
.image-gallery .item {
  border: 1px solid var(--border);
  border-radius: calc(var(--button-radius) + 4px);
  padding: 10px;
  background: #fff;
}
.image-gallery img {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
  border-radius: var(--button-radius);
}

.theme-minimalist .card,
.theme-minimalist .site-header {
  box-shadow: none;
}
.theme-modern .card {
  box-shadow: 0 14px 35px rgba(25, 28, 50, 0.08);
}
@media (min-width: 860px) {
  .menu-toggle { display: none; }
  .main-nav {
    display: flex !important;
    position: static;
    flex-direction: row;
    align-items: center;
    gap: 16px;
    background: transparent;
    border: none;
    padding: 0;
  }
  .lang-switcher { margin-top: 0; margin-left: 10px; }
  .split { grid-template-columns: 1fr 1.3fr; }
  .cards { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .cards.two-col { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}