:root {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --text: #18202f;
  --muted: #647084;
  --line: #dfe5ee;
  --accent: #2563eb;
  --watch: #12805c;
  --skip: #b42318;
  --shadow: 0 10px 30px rgba(24, 32, 47, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--bg);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input {
  font: inherit;
}

.welcome-screen {
  display: grid;
  position: relative;
  overflow: hidden;
  min-height: 100vh;
  place-items: center;
  padding: 32px 24px;
}

.welcome-content {
  position: relative;
  z-index: 1;
  width: min(720px, 100%);
  text-align: center;
}

.welcome-content h1 {
  margin-bottom: 28px;
}

.bubble-layer {
  position: absolute;
  inset: 0;
  overflow: hidden;
  pointer-events: none;
}

.bubble {
  position: absolute;
  left: var(--bubble-left);
  bottom: -80px;
  width: var(--bubble-size);
  height: var(--bubble-size);
  border: 1px solid rgba(37, 99, 235, 0.34);
  border-radius: 999px;
  background: rgba(37, 99, 235, 0.14);
  box-shadow: inset 0 0 18px rgba(255, 255, 255, 0.8), 0 8px 22px rgba(37, 99, 235, 0.12);
  animation: bubble-rise var(--bubble-duration) linear infinite;
  animation-delay: var(--bubble-delay);
}

@keyframes bubble-rise {
  from {
    opacity: 0;
    transform: translate3d(0, 0, 0) scale(0.88);
  }

  12%,
  82% {
    opacity: 0.9;
  }

  to {
    opacity: 0;
    transform: translate3d(var(--bubble-drift), -115vh, 0) scale(1.08);
  }
}

.primary-button {
  min-height: 54px;
  padding: 0 26px;
  border: 0;
  border-radius: 8px;
  background: var(--accent);
  color: #ffffff;
  cursor: pointer;
  font-size: 1.05rem;
  font-weight: 800;
  box-shadow: 0 12px 24px rgba(37, 99, 235, 0.22);
}

.primary-button:hover {
  background: #1d4ed8;
}

.primary-button:disabled {
  background: #aeb8c8;
  box-shadow: none;
  cursor: not-allowed;
}

.icon-button {
  display: inline-grid;
  width: 54px;
  min-width: 54px;
  height: 54px;
  place-items: center;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--accent);
  cursor: pointer;
  box-shadow: 0 8px 18px rgba(24, 32, 47, 0.08);
}

.icon-button:hover {
  border-color: rgba(37, 99, 235, 0.38);
  background: #eef4ff;
}

.icon-button:disabled {
  color: #aeb8c8;
  cursor: not-allowed;
  box-shadow: none;
}

.icon-button svg {
  width: 25px;
  height: 25px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.training-screen,
.vacation-training-screen {
  display: grid;
  min-height: 100vh;
  place-items: center;
  padding: 32px 24px;
}

.test-screen {
  min-height: 100vh;
}

.recommendations-screen {
  min-height: 100vh;
}

.vacation-screen {
  min-height: 100vh;
}

.echo-screen,
.open-screen,
.open-results-screen {
  min-height: 100vh;
}

.blank-screen {
  min-height: 100vh;
}

.training-content {
  display: grid;
  justify-items: center;
  gap: 18px;
  width: min(1180px, 100%);
  text-align: center;
}

.training-content h1 {
  margin-bottom: 0;
}

.training-intro {
  width: 100%;
  max-width: none;
  margin-bottom: 0;
  text-align: center;
}

.training-panel {
  display: grid;
  justify-items: center;
  gap: 18px;
  width: min(520px, 100%);
  margin: 0 auto;
}

.training-content .video-list {
  width: 100%;
}

.recommendations-panel {
  display: grid;
  justify-items: center;
  gap: 18px;
  width: min(520px, 100%);
  margin: 0 auto 24px;
}

.recommendation-action {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  justify-content: center;
  align-items: center;
}

.training-progress {
  width: 100%;
  height: 16px;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #e8edf5;
}

.training-progress-bar {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: var(--watch);
  transition: width 1.5s ease;
}

.recommendation-progress-bar {
  transition-duration: 3s;
}

.training-status {
  min-height: 1.5em;
  margin: 0;
  color: var(--muted);
  font-weight: 700;
}

.is-hidden {
  display: none;
}

.app-header {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  align-items: end;
  max-width: 1180px;
  margin: 0 auto;
  padding: 36px 24px 20px;
}

.eyebrow {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 10px;
  font-size: clamp(2rem, 4vw, 3.6rem);
  line-height: 1;
}

.intro {
  max-width: 720px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.5;
}

.intro-actions {
  display: flex;
  justify-content: center;
  margin-top: 22px;
}

.activity-intro {
  max-width: none;
}

.activity-intro-block {
  text-align: center;
}

.test-intro-block {
  text-align: center;
}

.test-intro {
  max-width: none;
}

.recommendations-intro-block {
  text-align: center;
}

.recommendations-intro {
  max-width: none;
}

.vacation-intro-block {
  text-align: center;
}

.vacation-intro {
  max-width: none;
}

.echo-intro-block {
  text-align: center;
}

.echo-intro,
.echo-prompt {
  max-width: none;
  text-align: center;
}

.echo-scenario-title {
  margin-bottom: 8px;
  text-align: center;
  font-size: 1.3rem;
  font-weight: 900;
}

.echo-prompt {
  margin-bottom: 18px;
}

.progress-card {
  min-width: 150px;
  padding: 16px 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.progress-label {
  display: block;
  margin-bottom: 4px;
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

.progress-card strong {
  font-size: 1.8rem;
}

.app-main {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px 42px;
}

.toolbar {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: center;
  margin-bottom: 16px;
  padding: 16px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.toolbar h2 {
  margin-bottom: 4px;
  font-size: 1.15rem;
}

.toolbar p {
  margin-bottom: 0;
  color: var(--muted);
}

.secondary-button {
  min-height: 42px;
  padding: 0 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-weight: 700;
}

.secondary-button:hover {
  border-color: #b8c4d6;
}

.video-list {
  display: grid;
  gap: 12px;
}

.single-video-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
  margin: 0 auto;
}

.echo-video-list {
  display: grid;
  gap: 12px;
  max-width: 980px;
  margin: 0 auto;
}

.next-step {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  justify-content: center;
  padding: 28px 0 10px;
}

.back-step {
  display: flex;
  position: fixed;
  z-index: 4;
  right: 24px;
  bottom: 24px;
  justify-content: flex-end;
  width: auto;
  max-width: none;
  margin: 0;
  padding: 0;
}

.echo-intro-block .training-progress {
  margin-top: 18px;
}

.model-result {
  max-width: 980px;
  margin: 18px auto 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  text-align: center;
  box-shadow: 0 4px 18px rgba(24, 32, 47, 0.05);
}

.model-result p {
  margin-bottom: 8px;
}

.model-result p:last-child {
  margin-bottom: 0;
}

.model-result.is-match {
  border-color: rgba(18, 128, 92, 0.35);
  background: #e9f8f1;
  color: #075e43;
}

.model-result.is-miss {
  border-color: rgba(180, 35, 24, 0.35);
  background: #fff0ee;
  color: #8c1d13;
}

.score-result {
  max-width: 980px;
  margin: 14px auto 0;
  padding: 22px;
  border: 1px solid rgba(37, 99, 235, 0.2);
  border-radius: 8px;
  background: var(--surface);
  text-align: center;
  box-shadow: var(--shadow);
}

.score-main {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 8px;
  color: var(--text);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1;
}

.score-trophy {
  font-size: 0.9em;
}

.score-result p {
  margin: 0;
  color: var(--muted);
  font-size: 1.05rem;
  font-weight: 800;
}

.empty-message {
  margin: 0;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  color: var(--muted);
  text-align: center;
  font-weight: 800;
}

.modal-backdrop {
  position: fixed;
  z-index: 10;
  inset: 0;
  display: grid;
  place-items: center;
  padding: 24px;
  background: rgba(24, 32, 47, 0.42);
}

.modal-panel {
  width: min(880px, 100%);
  max-height: min(760px, 90vh);
  overflow: auto;
  padding: 24px;
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 24px 70px rgba(24, 32, 47, 0.24);
  text-align: center;
}

.modal-panel h2 {
  margin-bottom: 6px;
  font-size: clamp(1.6rem, 4vw, 2.4rem);
}

.modal-subtitle {
  margin-bottom: 20px;
  color: var(--muted);
  font-weight: 800;
}

.model-table-wrap {
  overflow-x: auto;
  margin-bottom: 22px;
}

.model-table {
  width: 100%;
  border-collapse: collapse;
  text-align: left;
}

.model-table th,
.model-table td {
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.model-table th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.model-table td:not(:first-child),
.model-table th:not(:first-child) {
  text-align: center;
}

.video-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 22px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 6px solid transparent;
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 4px 18px rgba(24, 32, 47, 0.05);
  transition: border-color 160ms ease, box-shadow 160ms ease, transform 160ms ease;
}

.video-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.video-card.is-watch {
  border-left-color: var(--watch);
}

.video-card.is-skip {
  border-left-color: var(--skip);
}

.video-card.is-recommendation {
  grid-template-columns: 1fr;
}

.echo-video-card {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 220px;
  gap: 18px;
  align-items: center;
  padding: 18px;
  border: 1px solid var(--line);
  border-left: 6px solid transparent;
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 4px 18px rgba(24, 32, 47, 0.05);
}

.echo-video-card.is-watch {
  border-left-color: var(--watch);
}

.echo-video-card.is-recommendation {
  grid-template-columns: 1fr;
}

.echo-video-card h3 {
  margin-bottom: 0;
  font-size: 1.08rem;
  line-height: 1.35;
}

.echo-video-card .category-pill {
  justify-self: start;
}

.echo-comparison {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 24px;
  padding-top: 12px;
}

.echo-recommendation-column h2 {
  margin-bottom: 14px;
  text-align: center;
}

.echo-comparison-list {
  display: grid;
  gap: 12px;
}

.echo-comparison-card {
  display: grid;
  grid-template-columns: 150px minmax(0, 1fr);
  gap: 14px;
  align-items: center;
  min-height: 78px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: 0 4px 18px rgba(24, 32, 47, 0.05);
}

.echo-comparison-card h3 {
  margin-bottom: 0;
  font-size: 1rem;
  line-height: 1.3;
}

.video-topline {
  display: flex;
  align-items: center;
  margin-bottom: 10px;
}

.category-pill {
  display: inline-flex;
  min-height: 34px;
  align-items: center;
  border-radius: 999px;
  padding: 6px 13px;
  color: #172033;
  font-size: 0.95rem;
  font-weight: 800;
}

.category-animaux {
  background: #d8f1e8;
}

.category-cuisine {
  background: #ffe4c7;
}

.category-sciences-et-technologie {
  background: #dbeafe;
}

.category-jeux-video {
  background: #ece1ff;
}

.category-sport {
  background: #d9f99d;
}

.category-positif {
  background: #d8f1e8;
}

.category-negatif {
  background: #fee2e2;
}

.video-card h3 {
  margin-bottom: 16px;
  font-size: 1.16rem;
  line-height: 1.3;
}

.metadata {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
  margin: 0;
}

.metadata div {
  min-width: 0;
}

.metadata dt {
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.metadata dd {
  margin: 0;
  overflow-wrap: anywhere;
  font-weight: 650;
}

.choice-group {
  display: grid;
  gap: 10px;
  min-width: 0;
  margin: 0;
  padding: 0;
  border: 0;
}

.choice-group legend {
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  text-transform: uppercase;
}

.choice {
  display: flex;
  min-height: 46px;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fbfcff;
  cursor: pointer;
  font-weight: 800;
}

.choice:hover {
  border-color: #b8c4d6;
}

.choice input {
  width: 18px;
  height: 18px;
  margin: 0;
  accent-color: var(--accent);
}

.choice-watch:has(input:checked) {
  border-color: rgba(18, 128, 92, 0.5);
  background: #e9f8f1;
  color: #075e43;
}

.choice-skip:has(input:checked) {
  border-color: rgba(180, 35, 24, 0.42);
  background: #fff0ee;
  color: #8c1d13;
}

@media (max-width: 860px) {
  .app-header {
    grid-template-columns: 1fr;
    padding-top: 28px;
  }

  .progress-card {
    width: 100%;
  }

  .video-card {
    grid-template-columns: 1fr;
  }

  .echo-video-card {
    grid-template-columns: 1fr;
  }

  .echo-comparison {
    grid-template-columns: 1fr;
  }

  .echo-comparison-card {
    grid-template-columns: 1fr;
  }

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

  .choice-group legend {
    grid-column: 1 / -1;
  }
}

@media (max-width: 620px) {
  .app-header,
  .app-main {
    padding-left: 16px;
    padding-right: 16px;
  }

  .back-step {
    right: 16px;
    bottom: 16px;
  }

  h1 {
    font-size: 2.2rem;
  }

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

  .secondary-button {
    width: 100%;
  }

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

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

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