/* ═══════════════════════════════════════════════════════════════════════════
   Guided Exercise – exercise.css  (copy from freebuteyko.com)
   ══════════════════════════════════════════════════════════════════════════ */

/* ─── Reset / Base ─────────────────────────────────────────────────────────── */

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0; padding: 0;
  font-family: system-ui, -apple-system, "Segoe UI", Helvetica, Arial, sans-serif;
  font-size: 16px;
  color: #1a1a1a;
  background: #f4f8fb;
  min-height: 100dvh;
}

.d-none { display: none !important; }

/* ─── Screens ──────────────────────────────────────────────────────────────── */

.ex-screen {
  min-height: calc(100dvh - 34px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 20px 12px 40px;
}

/* Full-screen tap screens (cp-prep, cp-measure) */
.ex-fullscreen-content {
  width: 100%;
  max-width: 520px;
  padding: 20px 8px;
}

/* ─── Screen: CP Prep (green) ──────────────────────────────────────────────── */

.ex-screen-cp-prep {
  background: #c8e6c9;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  align-items: flex-start;
  position: relative;
  padding-top: 0;
  padding-bottom: 10px;
  overflow: hidden;
}

.ex-screen-cp-prep .ex-fullscreen-content {
  position: relative;
  padding: 0 8px;
}

.ex-cp-prep-img {
  position: absolute;
  top: 0;
  right: 8px;
  width: 36%;
  max-width: 185px;
  height: auto;
  pointer-events: none;
}

.ex-cp-prep-header {
  margin-right: 38%;
  min-height: 80px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 5px;
}

.ex-cp-prep-block--get-ready .ex-cp-prep-list {
  width: 58%;
}

.ex-cp-prep-main-title {
  font-size: 1.15em;
  font-weight: 700;
  color: #1f4e79;
  margin: 0;
  text-align: center;
}

.ex-cp-prep-sub {
  font-size: 1.05em;
  font-weight: 400;
  color: #111;
  margin: 0 0 5px;
}

.ex-screen-title {
  font-size: 1.6em;
  font-weight: 700;
  color: #1f4e79;
  margin: 0 0 0.8em;
  text-align: center;
}

.ex-cp-prep-block {
  background: rgba(255,255,255,0.65);
  border: 2px solid rgba(46,125,50,0.35);
  border-radius: 10px;
  padding: 7px 12px;
  margin-bottom: 6px;
}

.ex-cp-prep-label {
  font-weight: 700;
  font-size: 0.72em;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #2e7d32;
  margin: 0 0 0.3em;
}

.ex-cp-prep-list {
  list-style: decimal;
  padding-left: 1.3em;
  margin: 0;
  line-height: 1.38;
  font-size: 0.93em;
}

.ex-cp-prep-list li { margin-bottom: 0.2em; }

.ex-cp-tap-cta {
  text-align: center;
  font-size: 1.7em;
  font-weight: 700;
  color: #1f4e79;
  letter-spacing: 0.04em;
  margin: 0.3em 0 0;
  animation: tapPulse 2s ease-in-out infinite;
}

@keyframes tapPulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

/* ─── Screen: CP Measuring (yellow) ─────────────────────────────────────────── */

.ex-screen-cp-measure {
  background: #fff9c4;
  cursor: pointer;
  user-select: none;
  -webkit-user-select: none;
  align-items: center;
}

.ex-screen-cp-measure .ex-screen-title { color: #f57f17; }

.ex-screen-cp-measure p {
  font-size: 1.05em;
  line-height: 1.5;
  margin: 0.5em 0;
}