:root {
  color-scheme: light;
  --logo-blue: #326787;
  --logo-ink: #111111;
  --ink: #303e47;
  --muted: #647078;
  --blue: #123858;
  --earth: #974b32;
  --surface-it: #d6e7f1;
  --surface-therapy: #f5ecdf;
  --text-on-accent: #ffffff;
  --card-radius: 24px;
  --button-radius: 14px;
  --card-padding: 32px;
  --card-gap: 24px;
}
* { box-sizing: border-box; }
body { margin: 0; min-height: 100svh; background: radial-gradient(ellipse at 15% 0%, #f8f5ee, transparent 60%), linear-gradient(135deg, #e9ecee, #f4f2ed 60%, #dde4e8); color: var(--ink); font: 16px/1.6 Arial, sans-serif; }
main { max-width: 960px; margin: auto; padding: clamp(20px, 4vw, 48px) 24px 36px; }
.logo { display: block; width: 100%; height: auto; overflow: visible; }
.logo text { font-family: Arial, sans-serif; font-weight: 700; font-size: 100px; }
.gestalt { fill: var(--logo-ink); }
.it { fill: var(--logo-blue); }
.signature { text-align: center; margin: 0 auto; }
.signature h1 { margin: 0 0 14px; font-size: clamp(24px, 4vw, 36px); font-weight: 400; }
.signature p { margin: 0; font-size: clamp(16px, 2.2vw, 20px); line-height: 1.6; text-wrap: balance; }
.logo-button { display: block; width: 100%; padding: 0; border: 0; background: transparent; color: inherit; cursor: pointer; }
.logo-button:focus-visible { outline: 2px solid var(--blue); outline-offset: 4px; border-radius: 8px; }
.tiles { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: var(--card-gap); margin: 44px 0 24px; align-items: start; }
.tile { --accent: var(--blue); --surface: var(--surface-it); min-width: 0; perspective: 1200px; }
.tile.therapy { --accent: var(--earth); --surface: var(--surface-therapy); }
/* Beide Seiten belegen dieselbe Grid-Zelle und bestimmen gemeinsam die feste Kartengröße. */
.tile-inner { display: grid; min-height: 300px; transform-style: preserve-3d; transition: transform .7s cubic-bezier(.4, 0, .2, 1); }
.tile.is-flipped .tile-inner { transform: rotateY(180deg); }
.tile-face { grid-area: 1 / 1; min-width: 0; border: 1px solid transparent; border-radius: var(--card-radius); background: var(--surface); color: var(--accent); cursor: pointer; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.tile-front { position: relative; padding: var(--card-padding) 24px; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: var(--card-gap); text-align: center; }
.tile-open { position: absolute; inset: 0; width: 100%; border: 0; border-radius: inherit; padding: 0; background: transparent; color: var(--accent); cursor: pointer; }
.tile-back { position: relative; transform: rotateY(180deg); display: flex; flex-direction: column; padding: 20px var(--card-padding) var(--card-padding); gap: 14px; }
.tile-close { position: absolute; inset: 0; width: 100%; height: 100%; padding: 0; border: 0; border-radius: inherit; background: transparent; color: var(--accent); cursor: pointer; }
h2, .content { overflow-wrap: anywhere; }
.icon { width: 72px; height: 72px; stroke: var(--accent); fill: none; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; transition: transform .3s ease; }
h2 { font-size: clamp(1.35rem, 3vw, 1.75rem); line-height: 1.2; font-weight: 700; letter-spacing: -.025em; margin: 0; }
.toggle { position: absolute; right: 22px; top: 18px; font-size: 1.5rem; font-weight: 300; }
.content { position: relative; margin: auto 0; pointer-events: none; }
.content a { pointer-events: auto; }
.icon-stones { width: 96px; height: 96px; object-fit: contain; }
.content p { margin: 0 0 22px; color: var(--ink); }
.links { display: grid; gap: 10px; }
a { color: var(--accent, var(--blue)); text-underline-offset: 4px; }
.primary { display: flex; justify-content: space-between; gap: 12px; padding: 14px 20px; border: 2px solid var(--accent); border-radius: var(--button-radius); background: var(--accent); color: var(--text-on-accent); text-decoration: none; font-weight: 700; }
.primary:hover { background: var(--surface); color: var(--accent); }
.tile button:focus-visible, a:focus-visible { outline: 3px solid var(--accent); outline-offset: 4px; }
footer { padding-top: 36px; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; color: var(--muted); font-size: .8rem; }
.footer-note { max-width: 430px; }
@media (hover: hover) { .tile-front:has(.tile-open:hover) .icon { transform: translateY(-5px); } }
@media (max-width: 620px) { main { padding: 20px 16px 28px; } .tiles { grid-template-columns: 1fr; gap: 20px; margin-top: 32px; } .tile-inner { min-height: 300px; } .tile-back { padding: 18px 22px 24px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } }