.fractal-modal {
  width: 1000px;
  max-width: calc(100vw - 28px);
  max-height: calc(100dvh - 32px);
  padding: 30px;
  border: 1px solid #829a7c;
  border-radius: 14px;
  background: #15372f;
  color: #f4f2e9;
  text-align: left;
  overflow: auto;
  box-shadow: 0 30px 100px #091c2980;
  color-scheme: dark;
}
.fractal-modal::backdrop { background: #0d241edb; }
.fractal-modal button:focus-visible,
.fractal-modal input:focus-visible { outline: 3px solid #d8ef9b; outline-offset: 4px; }
.portal-header { display: flex; justify-content: space-between; align-items: start; gap: 24px; }
.portal-header .small { margin: 0 0 12px; color: #d8ef9b; letter-spacing: 1.3px; }
.portal-header h2 { font-size: clamp(30px, 4vw, 45px); letter-spacing: -1.5px; margin: 0; }
.portal-header h2 em { color: #bdcdb6; font-size: .55em; font-weight: 400; white-space: nowrap; }
.fractal-close {
  flex: none;
  float: none;
  border: 1px solid #78947c;
  background: transparent;
  color: #f4f2e9;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  font-size: 24px;
  line-height: 1;
}
.fractal-close:hover { background: #2b5141; }
.portal-grid { display: grid; grid-template-columns: 1.2fr 1fr; gap: 32px; align-items: start; margin-top: 28px; }
.portal-art { min-width: 0; }
.portal-scene {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border: 1px solid #496f59;
  border-radius: 10px;
  background: radial-gradient(ellipse at center, #214d40, #102e28 75%);
}
#fractal-canvas { display: block; width: 100%; height: 100%; }
.portal-scene-label { position: absolute; left: 18px; top: 16px; margin: 0; font: 10px/1.4 monospace; letter-spacing: 1.6px; color: #b2c9b6; pointer-events: none; }
.portal-scene-mark { position: absolute; right: 18px; bottom: 12px; font: 22px/1 monospace; color: #d8ef9b; pointer-events: none; }
.portal-variants { display: flex; gap: 6px; margin-top: 16px; }
.portal-variants button,
.focus-durations button { border: 1px solid #657f6b; border-radius: 6px; background: transparent; color: #dfe9d6; padding: 8px 14px; font-size: 12px; }
.portal-variants button:hover,
.focus-durations button:hover { background: #2e5141; }
.portal-variants button[aria-pressed=true],
.focus-durations button[aria-pressed=true] { background: #d8ef9b; color: #173b2e; border-color: #d8ef9b; }
.portal-depth { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 10px 18px; margin-top: 18px; font-size: 12px; color: #d5dfd1; }
.portal-depth output { font-family: monospace; color: #d8ef9b; }
.portal-depth input { grid-column: 1 / -1; width: 100%; margin: 0; accent-color: #d8ef9b; cursor: pointer; }
.portal-wave-row { display: flex; justify-content: space-between; align-items: center; gap: 12px; margin-top: 15px; flex-wrap: wrap; }
.fractal-modal .wave-button { margin: 0; border: 1px solid #78947c; border-radius: 6px; padding: 8px 13px; color: #f4f2e9; background: transparent; font-size: 12px; }
.wave-button:disabled { cursor: default; color: #b4c8b3; }
.portal-motion-note { color: #b5c6b4; font-size: 11px; }
.portal-focus { border-top: 1px solid #6b856b; padding-top: 21px; }
.portal-focus .small { margin-bottom: 14px; color: #d8ef9b; letter-spacing: 1.5px; }
.portal-focus h3 { font: 400 31px/1.13 Georgia, serif; letter-spacing: -.5px; margin: 0 0 15px; }
.fractal-modal .focus-intro { color: #c7d6c3; font-size: 14px; line-height: 1.65; margin: 0 0 25px; max-width: 320px; }
.focus-durations { display: flex; gap: 7px; margin-bottom: 22px; }
.focus-durations button { flex: 1; padding-left: 10px; padding-right: 10px; }
.focus-durations button:disabled { cursor: default; opacity: .55; }
.focus-clock { border-top: 1px solid #45674e; border-bottom: 1px solid #45674e; padding: 19px 0 20px; }
.focus-phase { display: block; font: 10px monospace; letter-spacing: 2px; color: #d8ef9b; margin-bottom: 8px; }
.focus-time { display: block; font: 400 clamp(52px, 7vw, 76px)/1.15 monospace; letter-spacing: -5px; color: #f4f2e9; font-variant-numeric: tabular-nums; }
.focus-progress { height: 3px; margin-top: 18px; background: #3c6049; border-radius: 2px; overflow: hidden; }
.focus-progress span { display: block; height: 100%; width: 0; background: #d8ef9b; }
.focus-actions { display: flex; gap: 9px; margin-top: 21px; }
.focus-start { flex: 1; background: #d8ef9b; border: 1px solid #d8ef9b; color: #173b2e; border-radius: 6px; padding: 12px 16px; font-size: 13px; font-weight: 600; }
.focus-start:hover { background: #e4f6b9; }
.focus-reset { border: 1px solid #78947c; background: transparent; color: #dfe9d6; border-radius: 6px; padding: 10px 13px; font-size: 12px; }
.fractal-modal .focus-status { min-height: 42px; font-size: 12px; color: #c7d6c3; margin: 13px 0 0; }
.fractal-modal .focus-note { margin: 12px 0 0; font-size: 11px; color: #aebfae; }
.portal-footer { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 8px 18px; border-top: 1px solid #45674e; padding-top: 18px; margin-top: 25px; color: #b5c6b4; font-size: 11px; }
.portal-footer code { color: #d8ef9b; }
@media (max-width: 680px) {
  .fractal-modal { padding: 22px; max-width: calc(100vw - 20px); max-height: calc(100dvh - 20px); }
  .portal-header { gap: 14px; }
  .portal-header h2 { font-size: 32px; }
  .portal-header h2 em { display: block; margin-top: 8px; }
  .portal-header .small { max-width: 230px; font-size: 9px; }
  .portal-grid { grid-template-columns: 1fr; gap: 27px; margin-top: 23px; }
  .portal-focus { padding-top: 24px; }
  .portal-focus h3 { font-size: 30px; }
  .focus-time { font-size: 68px; }
  .fractal-modal .focus-intro { max-width: none; }
  .portal-footer { margin-top: 20px; }
}
@media (prefers-reduced-motion: reduce) {
  .fractal-modal * { scroll-behavior: auto; }
}