/* The guided tour (ui/coach.js): a spotlight on the thing to tap, a sparkling path from the card to it, and the card itself.
   Nothing here takes a tap away from the app: the layer lets every tap through except on the card. Every animation has an off state
   (base.css turns them all off for prefers-reduced-motion, and the shapes still show). */

.coach {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
}

.coach[hidden] {
  display: none;
}

/* With nothing to point at, the whole stage dims instead. */
.coach__dim {
  position: absolute;
  inset: 0;
  background: rgba(4, 8, 24, 0.66);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.coach.is-plain .coach__dim {
  opacity: 1;
}

/* The spotlight: a ring around the target, and the dimming is the shadow outside it. */
.coach__spot {
  position: absolute;
  box-sizing: border-box;
  border: 2px solid var(--gold-fill);
  box-shadow: 0 0 18px 2px rgba(255, 217, 138, 0.55), 0 0 0 100vmax rgba(4, 8, 24, 0.58);
}

.coach__spot[hidden] {
  display: none;
}

.coach__spot.is-moving {
  transition: left 0.45s var(--spring-soft), top 0.45s var(--spring-soft), width 0.45s var(--spring-soft), height 0.45s var(--spring-soft), border-radius 0.45s ease;
}

/* A ring that keeps expanding and fading, so the target looks alive without anything heavy animating. */
.coach__spot::after {
  content: "";
  position: absolute;
  inset: -2px;
  border: 2px solid var(--gold-fill);
  border-radius: inherit;
  animation: coach-ping 1.9s ease-out infinite;
}

@keyframes coach-ping {
  from {
    opacity: 0.75;
    transform: scale(1);
  }
  to {
    opacity: 0;
    transform: scale(1.14, 1.3);
  }
}

.coach__trail {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  overflow: visible;
}

.coach__glow {
  fill: none;
  stroke: var(--gold-fill);
  stroke-width: 9;
  stroke-linecap: round;
  opacity: 0.16;
}

/* Dots marching along the path, from the card to the target. */
.coach__line {
  fill: none;
  stroke: var(--gold-fill);
  stroke-width: 3.4;
  stroke-linecap: round;
  stroke-dasharray: 0.1 11;
  animation: coach-march 1.1s linear infinite;
}

@keyframes coach-march {
  to {
    stroke-dashoffset: -22.2;
  }
}

.coach__arrow {
  fill: none;
  stroke: var(--gold-fill);
  stroke-width: 3.6;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.coach__star {
  fill: var(--gold-fill);
  transform: scale(var(--s, 5));
  transform-box: fill-box;
  transform-origin: center;
  animation: coach-twinkle 1.7s ease-in-out infinite;
  animation-delay: var(--d, 0s);
}

@keyframes coach-twinkle {
  0%,
  100% {
    opacity: 0.25;
    transform: scale(calc(var(--s, 5) * 0.35)) rotate(0deg);
  }
  50% {
    opacity: 1;
    transform: scale(var(--s, 5)) rotate(35deg);
  }
}

/* A strip across the top, so no one forgets nothing is being saved. The page makes room for it (html[data-practice]). */
.coach__flag {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  display: grid;
  place-items: center;
  height: calc(26px + env(safe-area-inset-top));
  margin: 0;
  padding-top: env(safe-area-inset-top);
  background: var(--gold-fill);
  color: var(--navy);
  font: 800 0.72rem/1 var(--font-ui);
  letter-spacing: 0.16em;
  text-transform: uppercase;
  white-space: nowrap;
}

html[data-practice] body {
  padding-top: calc(26px + env(safe-area-inset-top));
}

@media (min-width: 960px) {
  html[data-practice] .nav-wrap {
    top: 42px;
  }
}

/* The card. */
.coach__bubble {
  position: absolute;
  box-sizing: border-box;
  display: grid;
  gap: var(--sp-2);
  padding: var(--sp-4) var(--sp-4) var(--sp-3);
  border: 2px solid var(--gold-fill);
  border-radius: var(--r-md);
  background: var(--panel);
  box-shadow: var(--glass-shadow);
  color: var(--text);
  pointer-events: auto;
}

.coach__bubble.is-new {
  animation: coach-pop 0.4s var(--spring) both;
}

@keyframes coach-pop {
  from {
    opacity: 0;
    transform: translateY(8px) scale(0.96);
  }
}

.coach__bar {
  height: 3px;
  border-radius: 99px;
  background: rgba(246, 233, 207, 0.16);
  overflow: hidden;
}

.coach__bar i {
  display: block;
  height: 100%;
  border-radius: inherit;
  background: var(--gold-fill);
}

.coach__kicker {
  margin: 0;
  color: var(--gold-text);
  font: 600 0.74rem/1 var(--font-ui);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.coach__title {
  margin: 0;
  font: 800 1.45rem/1.15 var(--font-ui);
}

.coach__text {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.4;
  color: var(--text-dim);
}

.coach__row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
  margin-top: var(--sp-1);
}

.coach__skip,
.coach__alt {
  padding: 8px 2px;
  white-space: nowrap;
  border: 0;
  background: none;
  color: var(--navy);
  font: 700 0.95rem/1 var(--font-ui);
  text-decoration: underline;
  text-underline-offset: 3px;
  cursor: pointer;
}

.coach__alt {
  margin-left: auto;
}

/* A step inside a sheet: the words sit at the top of the sheet and the button to tap is ringed. */
.coach-inline {
  display: grid;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
  border: 1px solid var(--gold);
  border-radius: var(--r-sm);
  background: rgba(255, 217, 138, 0.1);
}

.coach-inline__text {
  margin: 0;
  font-size: 1.0625rem;
  line-height: 1.4;
}

.coach-inline__sparks {
  width: 60px;
  height: 16px;
  overflow: visible;
}

.coach-target {
  outline: 3px solid var(--gold-fill);
  outline-offset: 4px;
  animation: coach-glow 1.5s ease-in-out infinite;
}

@keyframes coach-glow {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(255, 217, 138, 0.7);
  }
  50% {
    box-shadow: 0 0 0 9px rgba(255, 217, 138, 0);
  }
}

@media (max-width: 380px) {
  .coach__title {
    font-size: 1.35rem;
  }

  .coach__text {
    font-size: 1rem;
  }
}

/* Short screens (a phone held sideways): a smaller card, so it fits under the thing to tap. */
@media (max-height: 520px) {
  .coach__bubble {
    gap: var(--sp-1);
    padding: var(--sp-3) var(--sp-4) var(--sp-2);
  }

  .coach__bar {
    display: none;
  }

  .coach__title {
    font-size: 1.25rem;
  }

  .coach__text {
    font-size: 0.95rem;
    line-height: 1.32;
  }

  .coach__skip,
  .coach__alt {
    padding: 4px 2px;
  }
}

/* While practising, messages ("Session saved") appear at the top, under the strip, so they do not cover the card. */
html[data-practice] .toast {
  top: calc(36px + env(safe-area-inset-top));
  bottom: auto;
}

/* The expanding ring is only motion, so with reduced motion it goes (the ring around the target and the dotted path stay). */
@media (prefers-reduced-motion: reduce) {
  .coach__spot::after {
    display: none;
  }
}