:root {
  --flieder: #C59AF6;
  --flieder-dark: #A878E8;
  --creme: #ECECEA;
  --ink: #2B2630;
  --ink-soft: #6B6472;
  --white: #FFFFFF;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--creme);
  color: var(--ink);
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  min-height: 100vh;
}

.topbar {
  background: var(--white);
  border-bottom: 1px solid rgba(43, 38, 48, 0.08);
}

.topbar-inner {
  max-width: 1100px;
  margin: 0 auto;
  padding: 20px 24px;
}

.brand-mark {
  display: flex;
  flex-direction: column;
  line-height: 1.05;
}

.brand-main {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 16px;
  letter-spacing: 0.01em;
  color: var(--ink);
  text-transform: uppercase;
}

.brand-sub {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 9px;
  letter-spacing: 0.06em;
  color: var(--ink-soft);
  text-transform: uppercase;
}

.hub {
  max-width: 1100px;
  margin: 0 auto;
  padding: 64px 24px;
}

.topbar-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar-links {
  display: flex;
  align-items: center;
  gap: 20px;
}

.back-link {
  font-family: 'Inter', sans-serif;
  font-weight: 600;
  font-size: 14px;
  color: var(--ink-soft);
  text-decoration: none;
}

.back-link:hover {
  color: var(--ink);
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 20px;
}

.hub-title {
  margin: 0 0 36px;
}

.highlight-block {
  display: inline-block;
  background: var(--flieder);
  color: var(--ink);
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: clamp(28px, 5vw, 42px);
  padding: 0.3em 0.45em;
  border-radius: 10px;
  line-height: 1.1;
  text-transform: uppercase;
}

.mindmap {
  position: relative;
  width: 100%;
  max-width: 1100px;
  aspect-ratio: 1100 / 620;
  margin: 20px auto 0;
}

.mindmap-arrows {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 3;
  pointer-events: none;
}

.arrow {
  fill: none;
  stroke: var(--ink);
  stroke-width: 3;
  stroke-linecap: round;
}

.arrow path {
  fill: var(--ink);
}

#arrowhead path {
  fill: var(--ink);
}

.mindmap-center {
  position: absolute;
  left: 50%;
  top: 46%;
  transform: translate(-50%, -50%);
  z-index: 2;
}

.mindmap-tile {
  position: absolute;
  width: 230px;
  z-index: 2;
}

.mindmap-tile-editoria {
  left: 66%;
  top: 4%;
}

.mindmap-tile-mueller {
  left: 4%;
  top: 58%;
}

.tile {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 28px;
  border-radius: 20px;
  text-decoration: none;
  min-height: 150px;
  justify-content: center;
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.tile-editoria {
  background: linear-gradient(135deg, var(--flieder), var(--flieder-dark));
  color: var(--white);
  box-shadow: 0 8px 24px rgba(165, 120, 232, 0.35);
}

.tile-editoria:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(165, 120, 232, 0.45);
}

.tile-mueller {
  background: linear-gradient(135deg, var(--ink), #453d4d);
  color: var(--white);
  box-shadow: 0 8px 24px rgba(43, 38, 48, 0.3);
}

.tile-mueller:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 28px rgba(43, 38, 48, 0.4);
}

.tile-logo {
  display: flex;
  flex-direction: column;
  line-height: 1.15;
}

.tile-logo-main {
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 28px;
  text-transform: uppercase;
}

.tile-logo-sub {
  font-family: 'Poppins', sans-serif;
  font-weight: 600;
  font-size: 13px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  opacity: 0.9;
}

.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.auth-card {
  width: 100%;
  max-width: 380px;
  background: var(--white);
  border-radius: 20px;
  padding: 36px 32px;
  box-shadow: 0 12px 32px rgba(43, 38, 48, 0.12);
}

.auth-title {
  margin-bottom: 24px;
}

.auth-hint {
  font-size: 14px;
  color: var(--ink-soft);
  margin: -8px 0 20px;
}

.auth-error {
  background: #FBEAEA;
  color: #A4303F;
  font-size: 13px;
  padding: 10px 14px;
  border-radius: 10px;
  margin: 0 0 18px;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.auth-label {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink-soft);
}

.auth-input {
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1.5px solid rgba(43, 38, 48, 0.15);
  background: var(--creme);
  color: var(--ink);
}

.auth-input:focus {
  outline: none;
  border-color: var(--flieder);
}

.auth-submit {
  margin-top: 8px;
  font-family: 'Poppins', sans-serif;
  font-weight: 800;
  font-size: 15px;
  padding: 13px;
  border: none;
  border-radius: 10px;
  background: var(--flieder);
  color: var(--ink);
  cursor: pointer;
  transition: background 0.15s ease;
}

.auth-submit:hover {
  background: var(--flieder-dark);
}

@media (max-width: 700px) {
  .mindmap {
    aspect-ratio: auto;
    display: flex;
    flex-direction: column;
    gap: 20px;
  }

  .mindmap-arrows {
    display: none;
  }

  .mindmap-center,
  .mindmap-tile {
    position: static;
    transform: none;
    width: 100%;
  }
}