:root {
  --mf-navy: #0b1020;
  --mf-deep: #13273f;
  --mf-teal: #1f5f63;
  --mf-teal-strong: #17484b;
  --mf-teal-soft: #e7f3f4;
  --mf-bg: #f3f7fb;
  --mf-panel: #ffffff;
  --mf-border: #d8e2ec;
  --mf-text: #20324a;
  --mf-text-soft: #4e5f77;
  --mf-ok: #1d8f7a;
  --mf-warn: #b6654f;
  --mf-shadow: 0 14px 30px rgba(11, 16, 32, 0.11);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  background: radial-gradient(circle at 10% -20%, #eff7f8 0%, #f3f7fb 48%, #eef3fa 100%);
  color: var(--mf-text);
  font-family: Inter, Segoe UI, Arial, sans-serif;
  overflow-wrap: anywhere;
  word-break: break-word;
}

body.mission-flow {
  min-height: 100vh;
}

.mission-main {
  width: min(1120px, 100%);
  margin: 0 auto;
  padding: 18px 16px 40px;
  display: grid;
  gap: 16px;
}

.mission-hero {
  border: 1px solid rgba(255, 255, 255, 0.32);
  border-radius: 18px;
  padding: 20px;
  color: #effbff;
  background:
    radial-gradient(circle at 20% 8%, rgba(255, 255, 255, 0.16), transparent 42%),
    linear-gradient(165deg, #173943 0%, #1f5f63 54%, #2a7684 100%);
  box-shadow: var(--mf-shadow);
}

.mission-hero h1 {
  margin: 8px 0 0;
  font-size: clamp(28px, 4.6vw, 44px);
  line-height: 1.08;
  letter-spacing: -0.015em;
  max-width: 18ch;
}

.hero-eyebrow {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 11px;
  font-weight: 800;
  color: #cce8eb;
}

.hero-subline {
  margin: 9px 0 0;
  font-size: 15px;
  color: #d9edf1;
}

.hero-subline-dot {
  opacity: 0.55;
  margin: 0 8px;
}

.mission-description {
  margin: 10px 0 0;
  color: #ebf9fb;
  max-width: 70ch;
  font-size: clamp(14px, 1.35vw, 18px);
  line-height: 1.55;
}

.mission-chip-row {
  margin-top: 14px;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.mission-chip {
  border: 1px solid rgba(255, 255, 255, 0.34);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.12);
  color: #f3fdff;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 6px 10px;
}

.hub-progress-text {
  margin: 12px 0 0;
  color: #eaf8fb;
  font-weight: 700;
}

.hub-progress-track {
  margin-top: 8px;
  height: 10px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.22);
  overflow: hidden;
}

.hub-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #9ce6ef 0%, #ffffff 100%);
  transition: width 0.25s ease;
}

.surface-card {
  border: 1px solid var(--mf-border);
  border-radius: 16px;
  background: var(--mf-panel);
  box-shadow: 0 8px 20px rgba(11, 16, 32, 0.07);
  padding: 16px;
}

.section-heading {
  margin: 0;
  color: var(--mf-deep);
  font-size: clamp(24px, 3.3vw, 32px);
  line-height: 1.2;
}

.section-subtext {
  margin: 8px 0 0;
  color: var(--mf-text-soft);
  line-height: 1.55;
}

.mission-grid {
  display: grid;
  gap: 14px;
}

.mission-grid.mission-grid-2 {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.mission-tile {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--mf-border);
  border-radius: 16px;
  background: linear-gradient(170deg, #ffffff 0%, #f8fcff 100%);
  box-shadow: 0 10px 24px rgba(11, 16, 32, 0.08);
  padding: 18px;
  transition: transform 0.2s ease, box-shadow 0.24s ease, border-color 0.24s ease;
}

.mission-tile::after {
  content: "";
  position: absolute;
  inset: auto -25% -52% -25%;
  height: 70%;
  background: radial-gradient(circle, rgba(31, 95, 99, 0.16), rgba(31, 95, 99, 0));
  opacity: 0;
  transition: opacity 0.2s ease;
  pointer-events: none;
}

.mission-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 30px rgba(11, 16, 32, 0.13);
  border-color: #9bc4c8;
}

.mission-tile:hover::after {
  opacity: 1;
}

.tile-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.tile-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  font-size: 22px;
  background: #e7f3f4;
}

.tile-title {
  margin: 0;
  font-size: 24px;
  line-height: 1.2;
  color: #122c46;
}

.tile-subtitle {
  margin: 2px 0 0;
  color: #2c5b6f;
  font-weight: 700;
}

.tile-description {
  margin: 10px 0 0;
  color: var(--mf-text-soft);
  line-height: 1.5;
}

.tile-meta {
  margin: 12px 0 0;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tile-meta span {
  background: #f0f5fb;
  color: #36526d;
  border: 1px solid #d6e2ef;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 700;
  padding: 5px 9px;
}

.gsm-btn,
.gsm-link-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  border-radius: 10px;
  border: 1px solid transparent;
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0 16px;
  cursor: pointer;
  transition: transform 0.17s ease, box-shadow 0.2s ease, filter 0.2s ease;
}

.gsm-btn:hover,
.gsm-link-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 20px rgba(11, 16, 32, 0.12);
}

.gsm-btn-primary,
.gsm-link-btn-primary {
  color: #ffffff;
  background: var(--mf-teal);
  border-color: #194f53;
}

.gsm-btn-soft,
.gsm-link-btn-soft {
  color: #1d4258;
  background: #eef4fb;
  border-color: #d1deec;
}

.action-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  min-width: 0;
}

.subskill-panel {
  border: 1px solid var(--mf-border);
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 8px 20px rgba(11, 16, 32, 0.06);
  padding: 16px;
}

.rule-block-grid {
  margin-top: 14px;
  display: grid;
  gap: 12px;
}

.rule-block {
  border: 1px solid #cfdcea;
  border-radius: 16px;
  background: linear-gradient(175deg, #ffffff 0%, #f8fcff 100%);
  box-shadow: 0 7px 18px rgba(11, 16, 32, 0.07);
  overflow: hidden;
}

.rule-block[open] {
  border-color: #b9d5de;
}

.rule-block-summary {
  list-style: none;
  cursor: pointer;
  padding: 14px;
  background: linear-gradient(180deg, rgba(31, 95, 99, 0.06), rgba(31, 95, 99, 0.02));
}

.rule-block-summary::-webkit-details-marker {
  display: none;
}

.rule-block-summary::marker {
  content: "";
}

.rule-block-content {
  border-top: 1px solid #dbe6f2;
  padding: 14px;
}

.rule-heading-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
}

.difficulty-tag {
  border-radius: 999px;
  border: 1px solid #bfd6dc;
  background: #edf7f8;
  color: #1e5f63;
  padding: 5px 10px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.difficulty-agent {
  border-color: #c7d7f2;
  background: #f0f5ff;
  color: #2f4f78;
}

.difficulty-director {
  border-color: #e0d1a7;
  background: #fdf8eb;
  color: #6b5414;
}

.subskill-header {
  display: flex;
  justify-content: space-between;
  align-items: start;
  gap: 10px;
  flex-wrap: wrap;
}

.subskill-title {
  margin: 0;
  color: #122c46;
  font-size: 24px;
}

.subskill-rule {
  margin: 8px 0 0;
  color: #37536f;
  font-weight: 700;
}

.subskill-example,
.subskill-eld {
  margin: 8px 0 0;
  color: var(--mf-text-soft);
  line-height: 1.5;
}

.game-card-grid {
  margin-top: 14px;
  display: grid;
  gap: 10px;
}

.game-card {
  border: 1px solid #d6e2ee;
  border-radius: 14px;
  background: #fbfdff;
  padding: 14px;
  display: grid;
  gap: 8px;
  transition: transform 0.18s ease, border-color 0.22s ease, box-shadow 0.22s ease;
  min-width: 0;
}

.game-card:hover {
  transform: translateY(-2px);
  border-color: #9fc4cd;
  box-shadow: 0 12px 22px rgba(11, 16, 32, 0.09);
}

.game-card-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.game-card-title {
  margin: 0;
  color: #16304b;
  font-size: 18px;
}

.game-card-description {
  margin: 0;
  color: #49627d;
  line-height: 1.45;
}

.game-badge {
  border-radius: 999px;
  padding: 4px 9px;
  font-size: 11px;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #1f5f63;
  border: 1px solid #b8d6da;
  background: #e9f6f7;
}

.game-status-tag {
  border-radius: 999px;
  border: 1px solid #d4dce8;
  background: #f6f8fb;
  color: #566d88;
  font-size: 11px;
  font-weight: 800;
  padding: 3px 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.game-status-tag.is-complete {
  border-color: #b8e0d1;
  background: #ebf8f1;
  color: #1f6754;
}

.play-board,
.results-board {
  border: 1px solid var(--mf-border);
  border-radius: 16px;
  background: var(--mf-panel);
  box-shadow: var(--mf-shadow);
  padding: 16px;
  display: grid;
  gap: 12px;
}

.play-metrics {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-pill {
  border: 1px solid #dbe6f2;
  border-radius: 12px;
  background: #f8fbff;
  padding: 10px;
  display: grid;
  gap: 4px;
}

.metric-pill strong {
  color: #16324f;
  font-size: 20px;
}

.metric-pill span {
  color: #56708c;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.is-hidden {
  display: none !important;
}

.progress-track {
  height: 10px;
  border-radius: 999px;
  background: #e5eff8;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #1f5f63 0%, #3b8790 100%);
  transition: width 0.22s ease;
}

.play-item-panel {
  border: 1px solid #dce6f2;
  border-radius: 14px;
  background: #fbfdff;
  padding: 14px;
  display: grid;
  gap: 10px;
}

.item-prompt {
  color: #16304a;
  font-size: clamp(18px, 2.2vw, 22px);
  font-weight: 800;
  line-height: 1.3;
}

.item-context {
  color: #4c5f79;
  line-height: 1.48;
}

.item-workspace {
  display: grid;
  gap: 10px;
}

.choice-grid {
  display: grid;
  gap: 10px;
}

.choice-btn {
  text-align: left;
  border: 1px solid #cdddeb;
  border-radius: 10px;
  background: #ffffff;
  color: #1f324c;
  padding: 11px 12px;
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.16s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.choice-btn:hover {
  transform: translateY(-1px);
  border-color: #8fbac0;
  box-shadow: 0 7px 16px rgba(11, 16, 32, 0.09);
}

.builder-label,
.sort-label,
.error-spotter-label {
  margin: 0;
  color: #3e5873;
  font-size: 13px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.07em;
}

.builder-output {
  border: 1px dashed #b8cada;
  border-radius: 10px;
  background: #f7fbff;
  color: #16304a;
  font-weight: 700;
  line-height: 1.5;
  min-height: 56px;
  display: flex;
  align-items: center;
  padding: 10px;
  cursor: pointer;
}

.builder-output.is-empty {
  color: #6b7f98;
  font-weight: 600;
}

.builder-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.token-btn {
  border: 1px solid #d2dfea;
  border-radius: 999px;
  background: #ffffff;
  color: #1f3652;
  font-size: 14px;
  font-weight: 700;
  padding: 7px 12px;
  cursor: pointer;
}

.token-btn:hover {
  border-color: #8fbac0;
  background: #f3fbfc;
}

.input-label {
  color: #3f5a75;
  font-weight: 700;
  font-size: 13px;
}

.text-input {
  width: 100%;
  border: 1px solid #cfdce8;
  border-radius: 10px;
  padding: 11px 12px;
  font-size: 15px;
  color: #16304a;
}

.text-input:focus {
  outline: 2px solid rgba(31, 95, 99, 0.2);
  border-color: #5ca4ac;
}

.error-spotter-bug {
  margin: 0;
  border: 1px solid #f0c6be;
  border-radius: 10px;
  background: #fff7f6;
  color: #7f3f34;
  font-size: 18px;
  font-weight: 700;
  padding: 10px;
}

.sort-grid {
  display: grid;
  gap: 8px;
}

.sort-row {
  display: grid;
  gap: 8px;
  border: 1px solid #d7e3ef;
  border-radius: 10px;
  background: #ffffff;
  padding: 10px;
}

.sort-row-text {
  color: #1f354f;
  line-height: 1.4;
  font-weight: 700;
}

.sort-select {
  width: 100%;
  border: 1px solid #cfdce8;
  border-radius: 8px;
  padding: 8px 9px;
  color: #16304a;
  font-size: 14px;
}

.feedback-panel {
  border: 1px solid #dbe7f3;
  border-radius: 12px;
  background: #f8fbff;
  padding: 12px;
  position: relative;
  overflow: hidden;
}

.feedback-panel h2 {
  margin: 0;
  font-size: 18px;
  color: #18314e;
}

.feedback-panel p {
  margin: 7px 0 0;
  color: #4d637d;
  line-height: 1.5;
}

.feedback-panel.feedback-ok {
  border-color: #bde5d9;
  background: #eefaf5;
}

.feedback-panel.feedback-ok h2 {
  color: #19624f;
}

.feedback-panel.answer-pop {
  animation: gsAnswerPop 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.feedback-panel.answer-pop::after {
  content: "";
  position: absolute;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  right: 16px;
  top: 16px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.95), rgba(255, 255, 255, 0));
  box-shadow:
    -14px 8px 0 1px rgba(157, 226, 205, 0.6),
    10px 18px 0 1px rgba(157, 226, 205, 0.55),
    -4px 24px 0 1px rgba(157, 226, 205, 0.5);
  animation: gsSparkleFade 0.46s ease-out forwards;
  pointer-events: none;
}

.feedback-panel.feedback-warn {
  border-color: #efc9b8;
  background: #fff8f4;
}

.feedback-panel.feedback-warn h2 {
  color: #8c4e38;
}

.feedback-panel.answer-shake {
  animation: gsAnswerShake 0.36s ease-in-out;
}

.results-board.mission-celebrate {
  animation: gsCelebrateGlow 0.9s ease-out;
}

.result-metrics {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.result-card {
  border: 1px solid #d8e5f1;
  border-radius: 12px;
  background: #f8fbff;
  padding: 10px;
}

.result-card h2 {
  margin: 0;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #56708b;
}

.result-card p {
  margin: 6px 0 0;
  color: #16324f;
  font-size: 24px;
  font-weight: 800;
}

.review-panel {
  border: 1px solid #dbe7f3;
  border-radius: 12px;
  background: #fbfdff;
  padding: 12px;
}

.review-panel h3 {
  margin: 0;
  color: #17324f;
  font-size: 18px;
}

.missed-list {
  margin: 10px 0 0;
  padding-left: 18px;
  display: grid;
  gap: 8px;
}

.missed-list li p {
  margin: 2px 0;
  color: #4a5f78;
  line-height: 1.45;
}

.perfect-run {
  margin: 10px 0 0;
  color: #1f6754;
  font-weight: 700;
}

.result-actions {
  margin-top: 2px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 800;
  text-transform: uppercase;
  letter-spacing: 0.07em;
  color: #2e5568;
  text-decoration: none;
}

.back-link:hover {
  text-decoration: underline;
}

.empty-state {
  border: 1px dashed #c9d8e7;
  border-radius: 12px;
  padding: 14px;
  background: #f7fbff;
  color: #5b7089;
}

@media (max-width: 920px) {
  .mission-grid.mission-grid-2,
  .result-metrics,
  .play-metrics {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 680px) {
  .mission-main {
    padding: 12px 10px 24px;
  }

  .mission-grid.mission-grid-2,
  .result-metrics,
  .play-metrics {
    grid-template-columns: 1fr;
  }

  .mission-hero h1 {
    font-size: 32px;
  }

  .item-prompt {
    font-size: 18px;
  }

  .gsm-btn,
  .gsm-link-btn {
    width: 100%;
  }
}

@keyframes gsAnswerPop {
  0% {
    transform: scale(0.98);
  }
  60% {
    transform: scale(1.01);
  }
  100% {
    transform: scale(1);
  }
}

@keyframes gsSparkleFade {
  0% {
    opacity: 0.95;
    transform: scale(0.4);
  }
  100% {
    opacity: 0;
    transform: scale(1.65);
  }
}

@keyframes gsAnswerShake {
  0%,
  100% {
    transform: translateX(0);
  }
  20% {
    transform: translateX(-5px);
  }
  40% {
    transform: translateX(5px);
  }
  60% {
    transform: translateX(-4px);
  }
  80% {
    transform: translateX(4px);
  }
}

@keyframes gsCelebrateGlow {
  0% {
    box-shadow: 0 0 0 rgba(31, 95, 99, 0);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(31, 95, 99, 0.08), var(--mf-shadow);
  }
  100% {
    box-shadow: var(--mf-shadow);
  }
}

@media (prefers-reduced-motion: reduce) {
  .feedback-panel.answer-pop,
  .feedback-panel.answer-shake,
  .results-board.mission-celebrate {
    animation: none !important;
  }
  .feedback-panel.answer-pop::after {
    display: none;
  }
}