:root {
  color-scheme: dark;
  --kst-bg: #06080d;
  --kst-bg-2: #0a0d14;
  --kst-panel: rgba(15, 19, 29, .86);
  --kst-panel-solid: #0e131d;
  --kst-panel-2: rgba(22, 28, 41, .78);
  --kst-line: rgba(159, 177, 207, .16);
  --kst-line-strong: rgba(122, 229, 255, .34);
  --kst-text: #f3f7ff;
  --kst-muted: #91a0b8;
  --kst-cyan: #63e6ff;
  --kst-blue: #4d8dff;
  --kst-violet: #9f7aea;
  --kst-green: #67f3bd;
  --kst-danger: #ff607d;
  --kst-shadow: 0 24px 80px rgba(0, 0, 0, .44);
  --kst-radius: 18px;
  --kst-radius-sm: 11px;
  --kst-appbar-h: 66px;
  font-family: Inter, "Segoe UI Variable", "Segoe UI", system-ui, sans-serif;
}

* {
  box-sizing: border-box;
  scrollbar-width: thin;
  scrollbar-color: rgba(99, 230, 255, .34) transparent;
}

*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-track { background: transparent; }
*::-webkit-scrollbar-thumb {
  background: rgba(99, 230, 255, .25);
  border: 3px solid transparent;
  border-radius: 999px;
  background-clip: padding-box;
}

::selection {
  background: rgba(99, 230, 255, .26);
  color: #fff;
}

html {
  min-height: 100%;
  background: var(--kst-bg);
}

body {
  color: var(--kst-text) !important;
  background:
    radial-gradient(circle at 12% 15%, rgba(77, 141, 255, .14), transparent 32%),
    radial-gradient(circle at 88% 84%, rgba(159, 122, 234, .11), transparent 34%),
    linear-gradient(rgba(99, 230, 255, .025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99, 230, 255, .025) 1px, transparent 1px),
    var(--kst-bg) !important;
  background-size: auto, auto, 32px 32px, 32px 32px, auto !important;
}

body.kst-modernized {
  padding-top: var(--kst-appbar-h) !important;
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  position: relative;
  min-height: 40px;
  border: 1px solid var(--kst-line-strong) !important;
  border-radius: var(--kst-radius-sm) !important;
  padding: 9px 14px !important;
  color: var(--kst-text) !important;
  background:
    linear-gradient(135deg, rgba(99, 230, 255, .14), rgba(77, 141, 255, .08)) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.06), 0 8px 24px rgba(0,0,0,.16);
  cursor: pointer;
  transition: transform .18s ease, border-color .18s ease, box-shadow .18s ease, background .18s ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: rgba(99, 230, 255, .72) !important;
  background:
    linear-gradient(135deg, rgba(99, 230, 255, .22), rgba(77, 141, 255, .13)) !important;
  box-shadow: 0 10px 30px rgba(44, 150, 255, .13);
}

button:active { transform: translateY(0) scale(.985); }
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 2px solid var(--kst-cyan) !important;
  outline-offset: 3px;
}

input:not([type="checkbox"]):not([type="color"]),
select,
textarea {
  width: 100%;
  min-height: 40px;
  border: 1px solid var(--kst-line) !important;
  border-radius: 10px !important;
  padding: 9px 11px !important;
  color: var(--kst-text) !important;
  background: rgba(4, 7, 12, .72) !important;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.03);
  transition: border-color .18s ease, box-shadow .18s ease;
}

input:not([type="checkbox"]):focus,
select:focus,
textarea:focus {
  border-color: rgba(99, 230, 255, .66) !important;
  box-shadow: 0 0 0 4px rgba(99, 230, 255, .08);
}

input[type="file"] {
  padding: 6px !important;
  color: var(--kst-muted) !important;
}

input[type="file"]::file-selector-button {
  margin-right: 10px;
  border: 0;
  border-radius: 8px;
  padding: 7px 10px;
  color: #061017;
  background: var(--kst-cyan);
  font-weight: 700;
  cursor: pointer;
}

input:disabled,
select:disabled,
button:disabled {
  opacity: .42 !important;
  cursor: not-allowed !important;
  filter: saturate(.3);
}

label {
  color: var(--kst-muted) !important;
  font-size: 13px;
  letter-spacing: .01em;
}

h1, h2, h3 {
  color: var(--kst-text) !important;
  letter-spacing: -.025em;
}

h2 { font-size: clamp(25px, 3vw, 38px) !important; }
h3 { font-size: 16px !important; }

.kst-appbar {
  position: fixed;
  z-index: 10000;
  inset: 0 0 auto;
  height: var(--kst-appbar-h);
  display: grid;
  grid-template-columns: minmax(250px, 1fr) auto minmax(190px, 1fr);
  align-items: center;
  gap: 20px;
  padding: 0 22px;
  border-bottom: 1px solid var(--kst-line);
  background: rgba(6, 8, 13, .78);
  box-shadow: 0 12px 40px rgba(0,0,0,.22);
  backdrop-filter: blur(22px) saturate(135%);
}

.kst-brand {
  display: flex;
  align-items: center;
  color: var(--kst-text);
  text-decoration: none;
}

.kst-brand-logo {
  display: block;
  width: 232px;
  height: 58px;
  object-fit: contain;
  object-position: left center;
  filter: drop-shadow(0 10px 24px rgba(0,0,0,.28));
}
.kst-nav {
  display: flex;
  align-items: center;
  gap: 5px;
  padding: 5px;
  border: 1px solid var(--kst-line);
  border-radius: 14px;
  background: rgba(255,255,255,.025);
}

.kst-nav a {
  padding: 8px 12px;
  border-radius: 9px;
  color: var(--kst-muted);
  text-decoration: none;
  font-size: 13px;
  font-weight: 650;
  transition: color .18s ease, background .18s ease;
}

.kst-nav a:hover { color: var(--kst-text); }
.kst-nav a[aria-current="page"] {
  color: #061017;
  background: linear-gradient(135deg, var(--kst-cyan), #8ff1ff);
  box-shadow: 0 6px 20px rgba(99,230,255,.15);
}

.kst-secure {
  justify-self: end;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--kst-muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.kst-secure::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--kst-green);
  box-shadow: 0 0 14px rgba(103, 243, 189, .65);
}

/* Startseite */
body.kst-landing {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
}

.kst-hero {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
  padding: 88px 0 70px;
}

.kst-hero-copy {
  max-width: 820px;
  margin-bottom: 52px;
}

.kst-kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--kst-cyan);
  font-size: 12px;
  font-weight: 780;
  letter-spacing: .16em;
  text-transform: uppercase;
}

.kst-kicker::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--kst-cyan);
  box-shadow: 0 0 10px var(--kst-cyan);
}

.kst-hero h1 {
  max-width: 900px;
  margin: 0 0 22px;
  font-size: clamp(48px, 8vw, 96px);
  line-height: .98;
  letter-spacing: -.065em;
}

.kst-gradient-text {
  color: transparent;
  background: linear-gradient(90deg, var(--kst-cyan), #84b7ff 48%, #c09cff);
  -webkit-background-clip: text;
  background-clip: text;
}

.kst-hero-copy > p {
  max-width: 670px;
  margin: 0;
  color: var(--kst-muted);
  font-size: clamp(17px, 2vw, 21px);
  line-height: 1.6;
}

.kst-workflow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.kst-workflow::before {
  content: "";
  position: absolute;
  z-index: -1;
  left: 8%;
  right: 8%;
  top: -30px;
  height: 160px;
  background: radial-gradient(ellipse, rgba(77,141,255,.14), transparent 70%);
  filter: blur(22px);
}

.kst-card {
  position: relative;
  min-height: 310px;
  padding: 26px;
  border: 1px solid var(--kst-line);
  border-radius: 22px;
  overflow: hidden;
  color: var(--kst-text);
  text-decoration: none;
  background:
    linear-gradient(155deg, rgba(255,255,255,.055), transparent 42%),
    var(--kst-panel);
  box-shadow: var(--kst-shadow);
  backdrop-filter: blur(18px);
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}

.kst-card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -70px;
  bottom: -85px;
  border-radius: 50%;
  background: var(--card-glow, var(--kst-cyan));
  opacity: .09;
  filter: blur(20px);
  transition: opacity .25s ease, transform .25s ease;
}

.kst-card:hover {
  transform: translateY(-8px);
  border-color: rgba(99,230,255,.42);
  box-shadow: 0 30px 90px rgba(0,0,0,.55);
}

.kst-card:hover::after { opacity: .18; transform: scale(1.25); }
.kst-card:nth-child(2) { --card-glow: var(--kst-blue); }
.kst-card:nth-child(3) { --card-glow: var(--kst-violet); }

.kst-card-index {
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: var(--kst-muted);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: .12em;
  text-transform: uppercase;
}

.kst-card-icon {
  width: 52px;
  height: 52px;
  display: grid;
  place-items: center;
  margin: 56px 0 22px;
  border: 1px solid var(--kst-line-strong);
  border-radius: 15px;
  color: var(--kst-cyan);
  background: rgba(99,230,255,.07);
}

.kst-card-icon svg { width: 26px; height: 26px; }
.kst-card h2 { margin: 0 0 10px; font-size: 24px !important; }
.kst-card p { margin: 0; color: var(--kst-muted); line-height: 1.55; }

/* Grundriss */
body.kst-page-grundriss {
  height: 100vh !important;
  overflow: hidden !important;
}

.kst-page-grundriss .sidebar {
  width: 330px !important;
  height: calc(100vh - var(--kst-appbar-h));
  padding: 22px !important;
  overflow-y: auto;
  border-right: 1px solid var(--kst-line) !important;
  background: rgba(10, 13, 20, .94) !important;
  box-shadow: 20px 0 70px rgba(0,0,0,.25);
}

.kst-page-grundriss #tools-section,
.kst-page-grundriss #edit-tools-section,
.kst-page-grundriss .settings-section {
  margin: 0 0 16px;
  padding: 16px;
  border: 1px solid var(--kst-line);
  border-radius: 15px;
  background: rgba(255,255,255,.025);
}

.kst-page-grundriss h3 {
  margin: 0 0 14px !important;
  color: var(--kst-muted) !important;
  font-size: 11px !important;
  letter-spacing: .14em;
  text-transform: uppercase;
}

.kst-page-grundriss .tool {
  width: 100% !important;
  margin: 0 0 8px !important;
  text-align: left;
}

.kst-page-grundriss .tool.active {
  border-color: var(--kst-cyan) !important;
  color: #061017 !important;
  background: var(--kst-cyan) !important;
}

.kst-page-grundriss .tool-danger {
  border-color: rgba(255, 96, 125, .42) !important;
  background: rgba(255, 96, 125, .08) !important;
}

.kst-page-grundriss .snap-toggle,
.kst-page-grundriss .edit-toggle {
  margin: 0 0 12px !important;
  padding: 10px 0;
  border-bottom: 1px solid var(--kst-line);
}

.kst-page-grundriss .export-buttons {
  display: grid !important;
  grid-template-columns: 1fr !important;
  gap: 8px !important;
}

.kst-page-grundriss .undo-redo-buttons {
  display: grid !important;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-top: 8px;
}

.kst-page-grundriss .undo-redo-buttons button {
  width: 100% !important;
  font-size: 20px;
}

.kst-page-grundriss #canvas-container {
  height: calc(100vh - var(--kst-appbar-h)) !important;
  border: 0 !important;
  background:
    radial-gradient(circle at 50% 45%, rgba(77,141,255,.06), transparent 45%),
    #080b11 !important;
}

.kst-page-grundriss canvas {
  filter: invert(.92) hue-rotate(175deg) saturate(.72) brightness(.9);
}

.kst-page-grundriss #selection-message,
.kst-page-grundriss #selection-details {
  color: var(--kst-muted) !important;
  line-height: 1.5;
}

/* Sicherungskasten */
body.kst-page-sicherungskasten {
  min-height: 100vh !important;
  padding: calc(var(--kst-appbar-h) + 28px) 28px 140px !important;
  align-items: stretch !important;
}

.kst-page-sicherungskasten .top-bar {
  position: relative !important;
  top: auto !important;
  width: min(1180px, 100%) !important;
  margin: 0 auto 20px !important;
  padding: 16px !important;
  gap: 10px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: var(--kst-radius) !important;
  background: var(--kst-panel) !important;
  box-shadow: var(--kst-shadow);
}

.kst-page-sicherungskasten .component {
  min-width: 120px;
  padding: 14px 18px !important;
  border: 1px solid var(--kst-line-strong) !important;
  border-radius: 12px !important;
  color: var(--kst-text) !important;
  background: linear-gradient(135deg, rgba(99,230,255,.12), rgba(159,122,234,.08)) !important;
  box-shadow: inset 0 1px rgba(255,255,255,.05);
  cursor: grab;
}

.kst-page-sicherungskasten .component:active { cursor: grabbing; }

.kst-page-sicherungskasten .main-center {
  width: min(1180px, 100%) !important;
  min-height: 500px;
  margin: 0 auto !important;
  padding: 28px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: 22px !important;
  background: var(--kst-panel) !important;
  box-shadow: var(--kst-shadow);
}

.kst-page-sicherungskasten .main-center > h2 {
  margin: 0 0 22px !important;
}

.kst-page-sicherungskasten #grid {
  padding: 22px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: 16px !important;
  background:
    linear-gradient(rgba(99,230,255,.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,230,255,.02) 1px, transparent 1px),
    rgba(3, 6, 10, .56) !important;
  background-size: 22px 22px !important;
}

.kst-page-sicherungskasten .slot {
  border-color: rgba(145,160,184,.24) !important;
  border-radius: 7px !important;
  background: rgba(255,255,255,.035) !important;
}

.kst-page-sicherungskasten .slot.sicherung {
  color: #17202c !important;
  background: linear-gradient(160deg, #eef4ff, #b9c5d8) !important;
  box-shadow: inset 0 1px #fff, 0 8px 16px rgba(0,0,0,.18);
}

.kst-page-sicherungskasten .bottom-controls {
  position: fixed !important;
  z-index: 8000;
  inset: auto 22px 18px !important;
  width: auto !important;
  display: flex !important;
  align-items: end !important;
  justify-content: center !important;
  flex-wrap: wrap;
  gap: 10px !important;
  padding: 13px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: 17px !important;
  background: rgba(10,13,20,.84) !important;
  box-shadow: 0 20px 70px rgba(0,0,0,.52);
  backdrop-filter: blur(22px);
}

.kst-page-sicherungskasten .bottom-controls label {
  width: 150px;
}

.kst-page-sicherungskasten #modalOverlay {
  z-index: 11000 !important;
  background: rgba(2, 4, 8, .76) !important;
  backdrop-filter: blur(10px);
}

.kst-page-sicherungskasten #widthModal {
  z-index: 11001 !important;
  width: min(460px, calc(100vw - 32px)) !important;
  max-height: calc(100vh - 40px);
  overflow-y: auto;
  border: 1px solid var(--kst-line-strong) !important;
  border-radius: 20px !important;
  color: var(--kst-text) !important;
  background: #0d121c !important;
  box-shadow: 0 35px 110px rgba(0,0,0,.72) !important;
}

.kst-page-sicherungskasten .form-group {
  gap: 8px !important;
}

/* Verbraucher */
body.kst-page-verbraucher {
  height: 100vh !important;
  padding-top: var(--kst-appbar-h) !important;
  grid-template-columns: minmax(0, 1.55fr) minmax(290px, .8fr) 330px !important;
  gap: 14px !important;
  padding-left: 14px !important;
  padding-right: 14px !important;
  padding-bottom: 14px !important;
}

.kst-page-verbraucher #editor,
.kst-page-verbraucher #sicherungskasten,
.kst-page-verbraucher #sidebar {
  min-width: 0;
  margin-top: 14px;
  padding: 20px !important;
  overflow: auto;
  border: 1px solid var(--kst-line) !important;
  border-radius: 19px !important;
  color: var(--kst-text) !important;
  background: var(--kst-panel) !important;
  box-shadow: var(--kst-shadow) !important;
}

.kst-page-verbraucher #editor h3,
.kst-page-verbraucher #sicherungskasten h3,
.kst-page-verbraucher #sidebar h3 {
  margin: 0 0 15px !important;
  font-size: 18px !important;
}

.kst-page-verbraucher #grundriss {
  width: 100% !important;
  min-height: 560px !important;
  margin: 14px 0 10px;
  border: 1px solid var(--kst-line-strong) !important;
  border-radius: 15px !important;
  background:
    linear-gradient(rgba(99,230,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(99,230,255,.025) 1px, transparent 1px),
    #080b11 !important;
  background-size: 24px 24px !important;
}

.kst-page-verbraucher #sidebar > label,
.kst-page-verbraucher #sidebar .form-group label {
  display: block;
  margin: 13px 0 6px;
}

.kst-page-verbraucher #sidebar > button {
  width: 100%;
  margin-top: 14px;
}

.kst-page-verbraucher #sidebar.disabled {
  opacity: .5 !important;
  filter: saturate(.25);
}

.kst-page-verbraucher .details {
  padding: 14px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: 12px;
  color: var(--kst-muted) !important;
  background: rgba(255,255,255,.025);
}

.kst-page-verbraucher #grid {
  padding: 14px !important;
  border: 1px solid var(--kst-line) !important;
  border-radius: 14px;
  background: rgba(3,6,10,.52) !important;
}

.kst-page-verbraucher .slot {
  border-color: rgba(145,160,184,.23) !important;
  border-radius: 6px !important;
  background: rgba(255,255,255,.045) !important;
}

.kst-page-verbraucher .slot.sicherung {
  color: #182130 !important;
  background: linear-gradient(160deg, #eff5ff, #bac6da) !important;
}

@media (max-width: 1050px) {
  .kst-appbar {
    grid-template-columns: 1fr auto;
  }
  .kst-secure { display: none; }
  .kst-nav { justify-self: end; }
  .kst-workflow { grid-template-columns: 1fr; }
  .kst-card { min-height: 240px; }
  .kst-card-icon { margin-top: 34px; }
  body.kst-page-verbraucher {
    height: auto !important;
    overflow: auto !important;
    grid-template-columns: 1fr !important;
    grid-template-rows: auto !important;
  }
  .kst-page-verbraucher #editor,
  .kst-page-verbraucher #sicherungskasten,
  .kst-page-verbraucher #sidebar {
    max-height: none;
  }
}

@media (max-width: 700px) {
  :root { --kst-appbar-h: 112px; }
  .kst-appbar {
    height: var(--kst-appbar-h);
    grid-template-columns: 1fr;
    align-content: center;
    gap: 8px;
    padding: 10px 14px;
  }
  .kst-brand { justify-self: center; }
  .kst-nav {
    width: 100%;
    justify-self: stretch;
    justify-content: center;
    overflow-x: auto;
  }
  .kst-nav a { white-space: nowrap; padding: 7px 9px; }
  .kst-hero {
    width: min(100% - 24px, 1180px);
    padding-top: 52px;
  }
  .kst-hero h1 { font-size: clamp(43px, 15vw, 68px); }
  .kst-page-grundriss .sidebar { width: 265px !important; padding: 12px !important; }
  .kst-page-sicherungskasten {
    padding-left: 12px !important;
    padding-right: 12px !important;
    padding-bottom: 230px !important;
  }
  .kst-page-sicherungskasten .main-center { padding: 16px !important; }
  .kst-page-sicherungskasten .bottom-controls { align-items: stretch !important; }
  .kst-page-sicherungskasten .bottom-controls label { width: calc(50% - 6px); }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    transition-duration: .01ms !important;
  }
}