/* MEGURU Learning Studio: a separate, selectable experience beside the game. */

:root {
  --learn-ink: #092530;
  --learn-navy: #0b3340;
  --learn-cyan: #61e6f2;
  --learn-mint: #a7f2bd;
  --learn-yellow: #ffe27a;
  --learn-paper: #f7fbf5;
  --learn-line: rgba(9, 37, 48, 0.16);
}

/* Visible fallback when a browser blocks a new-tab request. It is deliberately
   a real link so the professional route never ends in a dead click. */
.create-market-fallback {
  position: fixed;
  right: 1.25rem;
  bottom: 1.25rem;
  z-index: 10000;
  display: inline-flex;
  align-items: center;
  min-height: 3.25rem;
  padding: .75rem 1rem;
  border: 2px solid #0b3340;
  border-radius: 999px;
  background: #ffe27a;
  color: #092530;
  box-shadow: 0 .5rem 1.5rem rgba(9, 37, 48, .24);
  font-weight: 800;
  text-decoration: none;
}

.create-market-fallback:focus-visible {
  outline: 4px solid #61e6f2;
  outline-offset: 3px;
}

.experience-switch {
  display: grid;
  grid-template-columns: repeat(2, minmax(92px, 1fr));
  gap: 7px;
  min-width: 230px;
  padding: 4px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 18px;
  background: rgba(4, 21, 27, 0.72);
}

.experience-switch-button {
  display: grid;
  grid-template-columns: 26px 1fr;
  grid-template-rows: auto auto;
  column-gap: 7px;
  align-items: center;
  min-height: 40px;
  padding: 5px 9px;
  border: 1px solid transparent;
  border-radius: 13px;
  color: #eaffff;
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.experience-switch-button:hover,
.experience-switch-button.is-current {
  border-color: rgba(97, 230, 242, 0.58);
  background: rgba(97, 230, 242, 0.12);
}

.experience-switch-button span {
  grid-row: 1 / 3;
  display: grid;
  width: 25px;
  height: 25px;
  place-items: center;
  border-radius: 9px;
  color: var(--learn-ink);
  background: var(--learn-yellow);
  font-size: 8px;
  font-weight: 950;
}

.experience-switch-button:last-child span {
  background: var(--learn-mint);
}

.experience-switch-button b {
  align-self: end;
  font-size: 10px;
  line-height: 1;
}

.experience-switch-button small {
  align-self: start;
  color: #80ced5;
  font-size: 6px;
  font-weight: 900;
  letter-spacing: 0.13em;
}

.experience-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  margin-top: 15px;
}

.experience-choice-card {
  position: relative;
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 10px;
  align-items: start;
  min-height: 164px;
  padding: 15px 15px 49px;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: 20px;
  color: #f8ffff;
  cursor: pointer;
  text-align: left;
  transition: transform 160ms ease, border-color 160ms ease, box-shadow 160ms ease;
}

.experience-choice-card.is-learn {
  background:
    radial-gradient(circle at 100% 0, rgba(255, 226, 122, 0.27), transparent 40%),
    linear-gradient(145deg, rgba(13, 77, 82, 0.96), rgba(7, 38, 49, 0.96));
}

.experience-choice-card.is-play {
  background:
    radial-gradient(circle at 100% 0, rgba(167, 242, 189, 0.25), transparent 40%),
    linear-gradient(145deg, rgba(28, 58, 68, 0.96), rgba(10, 39, 49, 0.96));
}

.experience-choice-card:hover {
  border-color: var(--learn-yellow);
  box-shadow: 0 14px 34px rgba(0, 0, 0, 0.24), 0 0 24px rgba(97, 230, 242, 0.12);
  transform: translateY(-3px);
}

.experience-choice-card:focus-visible {
  outline: 3px solid var(--learn-yellow);
  outline-offset: 3px;
}

.experience-choice-number {
  display: grid;
  width: 40px;
  height: 40px;
  place-items: center;
  border-radius: 13px;
  color: var(--learn-ink);
  background: var(--learn-yellow);
  font-size: 11px;
  font-weight: 950;
}

.is-play .experience-choice-number {
  background: var(--learn-mint);
}

.experience-choice-copy {
  min-width: 0;
}

.experience-choice-copy > :is(small, b, em, i) {
  display: block;
}

.experience-choice-copy small {
  color: #92e7ee;
  font: 900 7px/1.25 ui-monospace, monospace;
  letter-spacing: 0.08em;
}

.experience-choice-copy b {
  margin-top: 7px;
  color: #fff;
  font-size: clamp(19px, 2vw, 27px);
  line-height: 1.08;
  letter-spacing: -0.04em;
}

.experience-choice-copy em {
  margin-top: 7px;
  color: #c7dcdd;
  font-size: 9px;
  font-style: normal;
  line-height: 1.5;
}

.experience-choice-copy i {
  margin-top: 8px;
  color: #fff4b0;
  font-size: 8px;
  font-style: normal;
  font-weight: 800;
}

.experience-choice-action {
  position: absolute;
  right: 0;
  bottom: 0;
  left: 0;
  display: flex;
  min-height: 40px;
  align-items: center;
  justify-content: space-between;
  padding: 8px 14px;
  color: var(--learn-ink);
  background: var(--learn-yellow);
  font-size: 9px;
  font-weight: 950;
}

.is-play .experience-choice-action {
  background: var(--learn-mint);
}

.experience-synergy-note {
  margin: 11px 0 0;
  padding: 10px 12px;
  border-left: 3px solid var(--learn-cyan);
  color: #b9d6d8;
  background: rgba(97, 230, 242, 0.06);
  font-size: 8px;
  line-height: 1.55;
}

.experience-synergy-note b {
  color: var(--learn-yellow);
}

.display-only-label {
  display: inline-flex;
  margin-right: 5px;
  padding: 3px 6px;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 999px;
  color: #c5d9dc;
  background: rgba(255, 255, 255, 0.05);
  font-size: 6px;
  letter-spacing: 0.05em;
}

.mode-preview {
  grid-template-columns: repeat(4, 1fr);
}

.mode-preview > button {
  display: grid;
  grid-template-columns: auto 1fr;
  grid-template-rows: auto auto auto;
  column-gap: 13px;
  align-content: center;
  min-height: 100%;
  padding: 14px clamp(12px, 1.8vw, 27px);
  border: 0;
  border-right: 1px solid rgba(255, 255, 255, 0.14);
  color: var(--white);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.mode-preview > button:last-child {
  border-right: 0;
}

.mode-preview > button:hover {
  background: rgba(97, 230, 242, 0.1);
}

.mode-preview > button span {
  grid-row: 1 / 4;
  align-self: center;
  color: var(--lime);
  font-size: 11px;
  font-weight: 800;
}

.mode-preview > button b {
  align-self: end;
  font-family: "Noto Sans JP";
  font-size: 14px;
}

.mode-preview > button small {
  color: #95aaa3;
  font-size: 9px;
}

.mode-preview > button em {
  margin-top: 4px;
  color: var(--learn-yellow);
  font-size: 7px;
  font-style: normal;
  font-weight: 900;
}

.learning-screen {
  min-height: 100svh;
  padding: 112px clamp(16px, 4vw, 58px) 70px;
  color: var(--learn-ink);
  background:
    radial-gradient(circle at 92% 10%, rgba(97, 230, 242, 0.24), transparent 28%),
    radial-gradient(circle at 8% 90%, rgba(255, 226, 122, 0.28), transparent 28%),
    linear-gradient(145deg, #f6fbf2, #e7f6f5 52%, #eef0ff);
}

.learning-hero {
  display: flex;
  max-width: 1380px;
  align-items: end;
  justify-content: space-between;
  gap: 30px;
  margin: 0 auto 22px;
  padding: 27px clamp(20px, 3vw, 38px);
  border: 1px solid rgba(9, 37, 48, 0.16);
  border-radius: 30px;
  background:
    linear-gradient(115deg, rgba(255, 255, 255, 0.92), rgba(255, 255, 255, 0.67)),
    url("assets/wte-process-cutaway.webp") center / cover;
  box-shadow: 0 24px 70px rgba(18, 63, 73, 0.15);
}

.learning-hero .eyebrow {
  color: #176775;
}

.learning-hero h2 {
  max-width: 760px;
  margin: 7px 0 8px;
  font-size: clamp(34px, 4.6vw, 68px);
  line-height: 0.98;
  letter-spacing: -0.055em;
}

.learning-hero h2 em {
  color: #2f8277;
  font-style: normal;
}

.learning-hero p:last-child {
  max-width: 740px;
  margin: 0;
  color: #46696e;
  font-size: 11px;
  line-height: 1.7;
}

.learning-hero-actions {
  display: grid;
  flex: 0 0 min(310px, 33%);
  gap: 9px;
}

.learning-hero-actions button {
  min-height: 44px;
  padding: 10px 16px;
  border: 1px solid var(--learn-ink);
  border-radius: 14px;
  color: var(--learn-ink);
  background: rgba(255, 255, 255, 0.84);
  cursor: pointer;
  font-size: 9px;
  font-weight: 900;
}

.learning-hero-actions button:last-child {
  border-color: #287765;
  background: var(--learn-mint);
}

.learning-shell {
  display: grid;
  grid-template-columns: 250px minmax(0, 1fr);
  gap: 18px;
  max-width: 1380px;
  margin: 0 auto;
}

.learning-topic-nav {
  display: grid;
  align-content: start;
  gap: 8px;
  padding: 12px;
  border: 1px solid var(--learn-line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.72);
  box-shadow: 0 18px 45px rgba(18, 63, 73, 0.08);
}

.learning-topic-nav button {
  display: grid;
  grid-template-columns: 36px 1fr;
  grid-template-rows: auto auto;
  gap: 2px 10px;
  min-height: 70px;
  align-items: center;
  padding: 10px;
  border: 1px solid transparent;
  border-radius: 17px;
  color: var(--learn-ink);
  background: transparent;
  cursor: pointer;
  text-align: left;
}

.learning-topic-nav button:hover,
.learning-topic-nav button.is-active {
  border-color: rgba(28, 116, 113, 0.3);
  background: #fff;
  box-shadow: 0 8px 25px rgba(18, 63, 73, 0.08);
}

.learning-topic-nav button span {
  grid-row: 1 / 3;
  display: grid;
  width: 36px;
  height: 36px;
  place-items: center;
  border-radius: 12px;
  color: var(--learn-ink);
  background: #dff6eb;
  font-size: 9px;
  font-weight: 950;
}

.learning-topic-nav button.is-active span {
  background: var(--learn-yellow);
}

.learning-topic-nav b {
  align-self: end;
  font-size: 11px;
}

.learning-topic-nav small {
  align-self: start;
  color: #6b8688;
  font-size: 8px;
}

.learning-content {
  min-width: 0;
  min-height: 650px;
  padding: clamp(18px, 3vw, 38px);
  border: 1px solid var(--learn-line);
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.85);
  box-shadow: 0 22px 60px rgba(18, 63, 73, 0.1);
}

.learning-section-head {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 22px;
}

.learning-section-head small {
  color: #26849a;
  font: 900 8px/1 ui-monospace, monospace;
  letter-spacing: 0.14em;
}

.learning-section-head h3 {
  margin: 7px 0 8px;
  font-size: clamp(27px, 3.5vw, 48px);
  line-height: 1.03;
  letter-spacing: -0.05em;
}

.learning-section-head p {
  max-width: 720px;
  margin: 0;
  color: #536f73;
  font-size: 11px;
  line-height: 1.7;
}

.learning-complete-chip {
  flex: 0 0 auto;
  padding: 8px 12px;
  border: 1px solid #78bca6;
  border-radius: 999px;
  color: #14594f;
  background: #ddf8e9;
  font-size: 8px;
  font-weight: 900;
}

.learning-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.learning-card {
  padding: 18px;
  border: 1px solid var(--learn-line);
  border-radius: 21px;
  background: #fff;
}

.learning-card > span {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border-radius: 14px;
  color: var(--learn-ink);
  background: var(--learn-yellow);
  font-size: 17px;
  font-weight: 950;
}

.learning-card h4 {
  margin: 14px 0 7px;
  font-size: 16px;
}

.learning-card p {
  margin: 0;
  color: #60797d;
  font-size: 10px;
  line-height: 1.65;
}

.learning-action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 20px;
}

.learning-action-row button,
.learning-quiz button,
.process-step {
  min-height: 44px;
  padding: 10px 15px;
  border: 1px solid #1d665f;
  border-radius: 14px;
  color: #103a3b;
  background: #fff;
  cursor: pointer;
  font-size: 9px;
  font-weight: 900;
}

.learning-action-row button.is-primary {
  border-color: #d9b939;
  background: var(--learn-yellow);
}

.learning-quiz {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  margin-top: 18px;
  padding: 18px;
  border-radius: 22px;
  background: #edf7f3;
}

.learning-quiz h4,
.learning-quiz p,
.learning-quiz .learning-feedback {
  grid-column: 1 / -1;
}

.learning-quiz h4 {
  margin: 0;
  font-size: 15px;
}

.learning-quiz p,
.learning-feedback {
  margin: 0;
  color: #577176;
  font-size: 10px;
  line-height: 1.6;
}

.learning-quiz button.is-correct {
  border-color: #2f8b68;
  background: #dff8e8;
}

.learning-quiz button.is-wrong {
  border-color: #c46c65;
  background: #fff0ed;
}

.process-map {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 8px;
  margin-top: 18px;
}

.process-step {
  position: relative;
  min-height: 126px;
  padding: 12px 9px;
  border-color: rgba(23, 88, 91, 0.2);
  text-align: center;
}

.process-step:not(:last-child)::after {
  position: absolute;
  z-index: 2;
  top: 48%;
  right: -12px;
  content: "→";
  color: #277a73;
  font-weight: 950;
}

.process-step span,
.process-step b,
.process-step small {
  display: block;
}

.process-step span {
  width: 36px;
  height: 36px;
  margin: 0 auto 8px;
  border-radius: 12px;
  color: var(--learn-ink);
  background: #dff6eb;
  line-height: 36px;
}

.process-step b {
  font-size: 10px;
}

.process-step small {
  margin-top: 6px;
  color: #6b8588;
  font-size: 8px;
  line-height: 1.45;
}

.process-step.is-selected {
  border-color: #24908a;
  background: #effcf8;
  box-shadow: 0 0 0 3px rgba(97, 230, 242, 0.18);
}

.process-explainer {
  margin-top: 12px;
  padding: 16px 18px;
  border-left: 4px solid #2f8b7c;
  border-radius: 0 18px 18px 0;
  background: #f3f8f5;
}

.process-explainer b {
  display: block;
  margin-bottom: 5px;
  font-size: 13px;
}

.process-explainer p {
  margin: 0;
  color: #567074;
  font-size: 10px;
  line-height: 1.65;
}

.learning-source-list {
  display: grid;
  gap: 9px;
}

.learning-source-list a,
.learning-source-list article {
  display: grid;
  grid-template-columns: minmax(130px, 0.3fr) 1fr;
  gap: 14px;
  padding: 15px 17px;
  border: 1px solid var(--learn-line);
  border-radius: 17px;
  color: var(--learn-ink);
  background: #fff;
  text-decoration: none;
}

.learning-source-list a:hover {
  border-color: #3e9c90;
}

.learning-source-list b {
  font-size: 10px;
}

.learning-source-list span {
  color: #607a7e;
  font-size: 9px;
  line-height: 1.55;
}

button[data-control-state="locked"] {
  border-color: #aeb9b7 !important;
  color: #74827f !important;
  background: #e5e9e7 !important;
  box-shadow: none !important;
  cursor: not-allowed !important;
  filter: grayscale(0.5);
  opacity: 0.66;
  transform: none !important;
}

.control-meaning {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 7px;
  align-items: center;
  margin: 0 0 10px;
  padding: 7px 10px;
  border: 1px solid rgba(9, 37, 48, 0.12);
  border-radius: 999px;
  color: #536e72;
  background: rgba(255, 255, 255, 0.72);
  font-size: 7px;
  font-weight: 800;
}

.control-meaning i {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #3f9f79;
}

.control-meaning i:last-of-type {
  background: #aeb9b7;
}

@media (max-width: 1060px) {
  .experience-switch {
    min-width: 190px;
  }

  .learning-shell {
    grid-template-columns: 1fr;
  }

  .learning-topic-nav {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }

  .learning-topic-nav button {
    grid-template-columns: 30px 1fr;
    min-height: 60px;
  }

  .learning-topic-nav button span {
    width: 30px;
    height: 30px;
  }

  .process-map {
    grid-template-columns: repeat(3, 1fr);
  }

  .process-step:nth-child(3)::after {
    display: none;
  }
}

@media (max-width: 740px) {
  .topbar {
    grid-template-columns: auto 1fr auto;
  }

  .experience-switch {
    justify-self: center;
    grid-template-columns: repeat(2, 42px);
    min-width: 0;
  }

  .experience-switch-button {
    display: grid;
    grid-template-columns: 1fr;
    min-height: 38px;
    padding: 4px;
    place-items: center;
  }

  .experience-switch-button span {
    grid-row: auto;
    width: 24px;
    height: 24px;
  }

  .experience-switch-button b,
  .experience-switch-button small {
    display: none;
  }

  .experience-choice-grid {
    grid-template-columns: 1fr;
  }

  .experience-choice-card {
    min-height: 145px;
  }

  .mode-preview {
    grid-template-columns: repeat(2, 1fr);
  }

  .mode-preview > button {
    min-height: 74px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.14);
  }

  .learning-screen {
    padding: 92px 10px 38px;
  }

  .learning-hero {
    display: block;
    padding: 20px 17px;
    border-radius: 22px;
  }

  .learning-hero-actions {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    margin-top: 15px;
  }

  .learning-topic-nav {
    grid-template-columns: repeat(2, 1fr);
  }

  .learning-content {
    min-height: 0;
    padding: 17px;
    border-radius: 22px;
  }

  .learning-section-head {
    display: block;
  }

  .learning-complete-chip {
    display: inline-flex;
    margin-top: 10px;
  }

  .learning-card-grid,
  .learning-quiz {
    grid-template-columns: 1fr;
  }

  .process-map {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-step:nth-child(3)::after {
    display: block;
  }

  .process-step:nth-child(2n)::after {
    display: none;
  }

  .learning-source-list a,
  .learning-source-list article {
    grid-template-columns: 1fr;
  }
}