:root {
  --bg: #f6f1e8;
  --bg-soft: #fffaf2;
  --surface: rgba(255, 250, 242, 0.8);
  --surface-strong: #fffdf8;
  --surface-muted: #efe5d5;
  --line: rgba(19, 57, 62, 0.14);
  --text: #15393e;
  --text-soft: #547177;
  --accent: #ff6b4a;
  --accent-dark: #b54a30;
  --accent-alt: #0f8c8d;
  --accent-alt-soft: #daf4f2;
  --success: #2b8a57;
  --success-soft: #d9f4e4;
  --danger: #c44536;
  --danger-soft: #fde2db;
  --warning: #a96f10;
  --warning-soft: #fff0c9;
  --shadow: 0 24px 60px rgba(38, 43, 48, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --mono: "SFMono-Regular", "Consolas", "Liberation Mono", monospace;
  --sans: "Avenir Next", "Segoe UI", "Trebuchet MS", sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at top left, rgba(15, 140, 141, 0.15), transparent 34%),
    radial-gradient(circle at top right, rgba(255, 107, 74, 0.18), transparent 28%),
    linear-gradient(180deg, #fff8ef 0%, #f6f1e8 100%);
  color: var(--text);
  font-family: var(--sans);
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

.page-glow {
  position: fixed;
  z-index: 0;
  width: 22rem;
  height: 22rem;
  border-radius: 999px;
  filter: blur(22px);
  opacity: 0.36;
  pointer-events: none;
}

.page-glow-left {
  top: 6rem;
  left: -8rem;
  background: rgba(15, 140, 141, 0.22);
}

.page-glow-right {
  top: 18rem;
  right: -8rem;
  background: rgba(255, 107, 74, 0.18);
}

.app-shell {
  position: relative;
  z-index: 1;
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
  padding: 28px 0 42px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(260px, 360px);
  gap: 24px;
  align-items: stretch;
}

.hero-copy,
.hero-card,
.dashboard > article,
.trainer-panel > section,
.trainer-panel > .progress-card,
.roadmap-card,
.summary-card,
.finale-card {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.55);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.hero-copy {
  padding: 34px;
  border-radius: var(--radius-xl);
  overflow: hidden;
  position: relative;
}

.hero-copy::after {
  content: "";
  position: absolute;
  inset: auto -4rem -5rem auto;
  width: 18rem;
  height: 18rem;
  border-radius: 38% 62% 42% 58%;
  background: linear-gradient(135deg, rgba(255, 107, 74, 0.12), rgba(15, 140, 141, 0.14));
  animation: drift 9s ease-in-out infinite;
}

.eyebrow,
.section-label,
.stat-label,
.hero-card-label,
.mission-label {
  margin: 0 0 10px;
  color: var(--text-soft);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.74rem;
  font-weight: 700;
}

h1,
h2,
h3 {
  margin: 0;
  font-family: var(--serif);
  font-weight: 700;
  line-height: 1;
}

h1 {
  font-size: clamp(2.7rem, 6vw, 4.8rem);
  max-width: 10ch;
}

h2 {
  font-size: clamp(1.9rem, 3.8vw, 2.6rem);
}

h3 {
  font-size: 1.45rem;
}

.hero-text {
  position: relative;
  z-index: 1;
  margin: 18px 0 0;
  max-width: 54ch;
  font-size: 1.06rem;
  line-height: 1.7;
  color: var(--text-soft);
}

.hero-card {
  border-radius: var(--radius-xl);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  background:
    linear-gradient(145deg, rgba(255, 107, 74, 0.14), rgba(255, 250, 242, 0.9) 40%),
    var(--surface);
}

.hero-card-value {
  margin: 0;
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  font-weight: 800;
}

.hero-card-note {
  margin: 14px 0 0;
  color: var(--text-soft);
  line-height: 1.6;
}

.dashboard {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
  margin-top: 22px;
}

.dashboard > article {
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  animation: rise 0.4s ease both;
}

.stat-value {
  margin: 8px 0 0;
  font-size: 1.9rem;
  font-weight: 800;
}

.stat-subtle {
  margin: 8px 0 0;
  color: var(--text-soft);
  font-size: 0.95rem;
}

.workspace {
  display: grid;
  grid-template-columns: minmax(0, 1.6fr) minmax(300px, 0.9fr);
  gap: 22px;
  margin-top: 22px;
  align-items: start;
}

.trainer-panel {
  display: grid;
  gap: 18px;
}

.panel-head,
.sidebar-head,
.editor-topline,
.progress-card,
.input-row,
.action-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}

.exercise-tags,
.pill-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tag,
.tiny-pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 8px 12px;
  border-radius: 999px;
  font-size: 0.88rem;
  font-weight: 700;
}

.tag {
  background: rgba(15, 140, 141, 0.12);
  color: var(--accent-alt);
}

.tag.accent {
  background: rgba(255, 107, 74, 0.12);
  color: var(--accent-dark);
}

.progress-card,
.mission-card,
.editor-card,
.feedback-card,
.explanation-card,
.roadmap-card,
.summary-card,
.finale-card {
  border-radius: var(--radius-lg);
  padding: 22px;
}

.progress-card {
  flex-direction: column;
  align-items: stretch;
}

.progress-copy {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  color: var(--text-soft);
}

.progress-copy p {
  margin: 0;
}

.progress-track {
  height: 12px;
  margin-top: 14px;
  border-radius: 999px;
  background: rgba(21, 57, 62, 0.08);
  overflow: hidden;
}

.progress-bar {
  width: 0;
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--accent), #ff8c42 48%, var(--accent-alt));
  transition: width 0.35s ease;
}

.mission-card {
  display: grid;
  gap: 14px;
  background:
    linear-gradient(135deg, rgba(255, 107, 74, 0.12), rgba(255, 250, 242, 0.92) 42%),
    var(--surface);
}

.mission-title,
.mission-primary {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.mission-primary {
  gap: 22px;
}

.mission-copy-block {
  flex: 1 1 420px;
}

.mission-kicker {
  margin: 0 0 10px;
  color: var(--accent-dark);
  font-size: 0.95rem;
  font-weight: 800;
}

.mission-goal {
  font-size: clamp(1.7rem, 3.1vw, 2.4rem);
  line-height: 1.06;
}

.mission-description {
  margin: 14px 0 0;
  max-width: 62ch;
  line-height: 1.65;
  color: var(--text-soft);
}

.mission-stats {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  min-width: min(360px, 100%);
  flex: 0 0 360px;
}

.mission-stat {
  padding: 14px 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.74);
  border: 1px solid var(--line);
}

.mission-stat span {
  display: block;
  color: var(--text-soft);
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.mission-stat strong {
  display: block;
  margin-top: 6px;
  font-size: 1.02rem;
  line-height: 1.35;
}

.mission-stat-id strong {
  font-family: var(--mono);
  font-size: 0.95rem;
}

.mission-steps {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.mission-step {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(21, 57, 62, 0.08);
  color: var(--text);
  font-size: 0.92rem;
  font-weight: 700;
}

.mission-step-active {
  background: rgba(255, 107, 74, 0.14);
  color: var(--accent-dark);
}

.mission-description,
.mission-note,
.editor-note,
.schema-caption,
.feedback-copy,
.explanation-copy,
.summary-copy,
.roadmap-note,
.finale-copy {
  margin: 0;
  line-height: 1.7;
  color: var(--text-soft);
}

.schema-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}

.schema-panel {
  display: grid;
  gap: 16px;
}

.schema-panel-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 16px;
}

.schema-panel-head h3 {
  font-size: 1.28rem;
}

.schema-card {
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.schema-table {
  margin: 0 0 8px;
  font-family: var(--mono);
  font-size: 0.97rem;
  font-weight: 700;
}

.schema-columns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tiny-pill {
  background: rgba(21, 57, 62, 0.08);
  color: var(--text);
}

.editor-card {
  display: grid;
  gap: 18px;
  background:
    linear-gradient(180deg, rgba(15, 140, 141, 0.08), rgba(255, 250, 242, 0.94) 22%),
    var(--surface);
}

.editor-topline {
  align-items: flex-start;
}

.editor-heading h3 {
  font-size: clamp(1.55rem, 2.6vw, 2rem);
  line-height: 1.08;
}

.query-editor {
  min-height: 190px;
  padding: 22px;
  border-radius: 18px;
  border: 1px solid rgba(21, 57, 62, 0.16);
  background:
    linear-gradient(180deg, rgba(15, 140, 141, 0.05), transparent 40%),
    #173034;
  color: #f7f5ef;
  font-family: var(--mono);
  font-size: clamp(0.96rem, 1.6vw, 1.05rem);
  line-height: 1.95;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.query-segment {
  color: inherit;
}

.blank {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 110px;
  min-height: 40px;
  margin: 3px 6px 3px 0;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px dashed rgba(247, 245, 239, 0.55);
  background: rgba(255, 255, 255, 0.06);
  color: #fff6e8;
  font-family: inherit;
  text-align: center;
  transition:
    transform 0.2s ease,
    border-color 0.2s ease,
    background 0.2s ease,
    color 0.2s ease;
}

.blank.empty {
  border-style: solid;
  border-color: rgba(255, 209, 102, 0.72);
  background: rgba(255, 209, 102, 0.1);
  color: #ffe0a3;
  font-weight: 700;
}

.blank:hover {
  transform: translateY(-1px);
}

.blank.selected {
  border-style: solid;
  border-color: #ffd166;
  background: rgba(255, 209, 102, 0.16);
}

.blank.filled {
  border-style: solid;
  border-color: rgba(255, 255, 255, 0.3);
}

.blank.correct {
  border-style: solid;
  border-color: rgba(43, 138, 87, 0.95);
  background: rgba(43, 138, 87, 0.22);
}

.blank.incorrect {
  border-style: solid;
  border-color: rgba(196, 69, 54, 0.95);
  background: rgba(196, 69, 54, 0.24);
}

.blank.revealed {
  border-style: solid;
  border-color: rgba(15, 140, 141, 0.95);
  background: rgba(15, 140, 141, 0.22);
}

.input-row {
  flex-wrap: wrap;
}

.manual-input {
  display: grid;
  gap: 8px;
  flex: 1 1 280px;
  min-width: 220px;
}

.manual-input span {
  color: var(--text-soft);
  font-size: 0.92rem;
  font-weight: 700;
}

.manual-input input {
  width: 100%;
  padding: 14px 16px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
}

.manual-input input:focus-visible {
  outline: 2px solid rgba(255, 107, 74, 0.45);
  outline-offset: 2px;
}

.word-bank-wrap {
  display: grid;
  gap: 10px;
}

.word-bank {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid rgba(21, 57, 62, 0.14);
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  font-family: var(--mono);
  font-size: 0.91rem;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.chip:hover {
  transform: translateY(-1px);
  border-color: rgba(255, 107, 74, 0.34);
  background: rgba(255, 244, 235, 0.96);
}

.primary-button,
.secondary-button,
.ghost-button {
  border-radius: 999px;
  padding: 12px 18px;
  font-weight: 700;
  border: 1px solid transparent;
  transition:
    transform 0.2s ease,
    background 0.2s ease,
    border-color 0.2s ease;
}

.primary-button:hover,
.secondary-button:hover,
.ghost-button:hover {
  transform: translateY(-1px);
}

.primary-button {
  background: linear-gradient(135deg, var(--accent), #ff8c42);
  color: #fff;
  box-shadow: 0 10px 18px rgba(255, 107, 74, 0.24);
}

.secondary-button {
  background: rgba(15, 140, 141, 0.1);
  color: var(--accent-alt);
  border-color: rgba(15, 140, 141, 0.18);
}

.ghost-button {
  background: transparent;
  color: var(--text);
  border-color: rgba(21, 57, 62, 0.16);
}

.feedback-card {
  display: none;
}

.feedback-card.visible {
  display: block;
}

.feedback-card.success {
  background: linear-gradient(135deg, rgba(43, 138, 87, 0.12), rgba(255, 250, 242, 0.9));
}

.feedback-card.warning {
  background: linear-gradient(135deg, rgba(169, 111, 16, 0.14), rgba(255, 250, 242, 0.9));
}

.feedback-card.danger {
  background: linear-gradient(135deg, rgba(196, 69, 54, 0.14), rgba(255, 250, 242, 0.9));
}

.feedback-title,
.summary-title,
.finale-title {
  margin: 0 0 8px;
  font-size: 1.15rem;
  font-weight: 800;
}

.hint-list,
.explanation-list {
  display: grid;
  gap: 10px;
  margin-top: 16px;
}

.hint-item,
.explanation-item {
  padding: 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.hint-item strong,
.explanation-item strong {
  display: block;
  margin-bottom: 6px;
}

.solution-block {
  margin-top: 16px;
  padding: 18px;
  border-radius: 16px;
  background: #173034;
  color: #f7f5ef;
  font-family: var(--mono);
  white-space: pre-wrap;
  line-height: 1.8;
}

.sidebar {
  display: grid;
  gap: 18px;
}

.exercise-list {
  display: grid;
  gap: 10px;
  margin-top: 18px;
}

.exercise-button {
  width: 100%;
  text-align: left;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
}

.exercise-button.active {
  border-color: rgba(255, 107, 74, 0.4);
  background: rgba(255, 242, 236, 0.92);
}

.exercise-button.solved {
  border-color: rgba(43, 138, 87, 0.35);
}

.exercise-button.revealed {
  border-color: rgba(15, 140, 141, 0.35);
}

.exercise-button.in-progress {
  border-color: rgba(169, 111, 16, 0.35);
}

.exercise-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}

.exercise-name {
  font-weight: 800;
}

.exercise-caption {
  color: var(--text-soft);
  font-size: 0.92rem;
}

.status-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: rgba(21, 57, 62, 0.18);
}

.status-dot.solved {
  background: var(--success);
}

.status-dot.revealed {
  background: var(--accent-alt);
}

.status-dot.in-progress {
  background: var(--warning);
}

.summary-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-top: 18px;
}

.summary-metric {
  padding: 16px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid var(--line);
}

.summary-metric strong {
  display: block;
  font-size: 1.45rem;
}

.summary-metric span {
  color: var(--text-soft);
}

.finale-card {
  display: none;
}

.finale-card.visible {
  display: block;
  background:
    linear-gradient(135deg, rgba(255, 107, 74, 0.16), rgba(15, 140, 141, 0.16)),
    var(--surface);
}

.finale-badge {
  display: inline-flex;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.66);
  color: var(--accent-dark);
  font-weight: 800;
  margin-bottom: 14px;
}

.muted {
  color: var(--text-soft);
}

@keyframes drift {
  0%,
  100% {
    transform: translateY(0) rotate(0deg);
  }
  50% {
    transform: translateY(-18px) rotate(12deg);
  }
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1080px) {
  .dashboard,
  .workspace,
  .hero {
    grid-template-columns: 1fr;
  }

  .hero-card {
    min-height: 0;
  }

  .mission-primary,
  .schema-panel-head {
    flex-direction: column;
  }

  .mission-stats {
    min-width: 0;
    width: 100%;
    flex-basis: auto;
  }
}

@media (max-width: 720px) {
  .app-shell {
    width: min(100% - 20px, 1280px);
    padding-top: 18px;
  }

  .hero-copy,
  .hero-card,
  .progress-card,
  .mission-card,
  .editor-card,
  .feedback-card,
  .explanation-card,
  .roadmap-card,
  .summary-card,
  .finale-card {
    padding: 18px;
  }

  h1 {
    max-width: none;
  }

  .panel-head,
  .sidebar-head,
  .editor-topline,
  .progress-copy,
  .action-row {
    flex-direction: column;
    align-items: flex-start;
  }

  .summary-grid {
    grid-template-columns: 1fr;
  }

  .mission-stats {
    grid-template-columns: 1fr;
  }

  .blank {
    min-width: 84px;
  }
}