/**
 * @file
 * Youth AI zone styles. Mobile-first, fluid layout for 320px+ screens.
 */

.dx-youth {
  --dy-primary: #2f6df6;
  --dy-primary-dark: #1e52c8;
  --dy-accent: #ff8a3d;
  --dy-ink: #1f2a44;
  --dy-muted: #5b6b8c;
  --dy-line: #dfe6f5;
  --dy-bg: #f4f7ff;
  --dy-card: #ffffff;
  --dy-ok: #1d9e6e;
  --dy-bad: #d64545;
  --dy-radius: 16px;
  --dy-shadow: 0 6px 24px rgba(31, 42, 68, 0.08);
  max-width: 1080px;
  margin: 0 auto;
  padding: clamp(12px, 3vw, 28px);
  color: var(--dy-ink);
  line-height: 1.7;
  overflow-wrap: anywhere;
}

.dx-youth *,
.dx-youth *::before,
.dx-youth *::after {
  box-sizing: border-box;
}

/* Hero ------------------------------------------------------------------ */
.dx-youth-hero {
  background: linear-gradient(135deg, #eaf1ff 0%, #f9fbff 55%, #fff4e8 100%);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(20px, 5vw, 44px);
  margin-bottom: 18px;
}

.dx-youth-hero-eyebrow {
  margin: 0 0 6px;
  color: var(--dy-primary);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.08em;
}

.dx-youth-hero-title {
  margin: 0 0 8px;
  font-size: clamp(1.7rem, 4.5vw, 2.6rem);
  line-height: 1.25;
}

.dx-youth-hero-sub {
  margin: 0;
  color: var(--dy-muted);
  font-size: clamp(0.95rem, 2.6vw, 1.1rem);
}

.dx-youth-hero-progress {
  margin: 14px 0 0;
  display: inline-block;
  background: #fff;
  border: 1px solid var(--dy-line);
  border-radius: 999px;
  padding: 8px 16px;
  font-size: 0.92rem;
}

/* Pillars --------------------------------------------------------------- */
.dx-youth-pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
  margin-bottom: 18px;
}

.dx-youth-pillar {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 44px;
  padding: 18px 12px;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  box-shadow: var(--dy-shadow);
  text-decoration: none;
  color: var(--dy-ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.dx-youth-pillar:hover,
.dx-youth-pillar:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(47, 109, 246, 0.16);
}

.dx-youth-pillar-icon {
  font-size: 1.8rem;
  line-height: 1;
}

.dx-youth-pillar-title {
  font-weight: 700;
  font-size: 1.05rem;
}

.dx-youth-pillar-desc {
  color: var(--dy-muted);
  font-size: 0.86rem;
  text-align: center;
}

/* Stats ----------------------------------------------------------------- */
.dx-youth-stats {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(92px, 1fr));
  gap: 10px;
  margin: 18px 0;
}

.dx-youth-stat {
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: 14px;
  padding: 14px 10px;
  text-align: center;
}

.dx-youth-stat strong {
  display: block;
  font-size: clamp(1.2rem, 3.5vw, 1.6rem);
  color: var(--dy-primary);
}

.dx-youth-stat span {
  color: var(--dy-muted);
  font-size: 0.84rem;
}

.dx-youth-stat--alert strong {
  color: var(--dy-accent);
}

/* Sections -------------------------------------------------------------- */
.dx-youth-section {
  margin: 26px 0;
}

.dx-youth-section-title {
  margin: 0 0 12px;
  font-size: clamp(1.15rem, 3vw, 1.4rem);
}

.dx-youth-page-head {
  margin: 6px 0 18px;
}

.dx-youth-page-head h1 {
  margin: 0 0 6px;
  font-size: clamp(1.5rem, 4vw, 2.1rem);
}

.dx-youth-page-head p {
  margin: 0;
  color: var(--dy-muted);
}

.dx-youth-empty {
  color: var(--dy-muted);
  background: var(--dy-bg);
  border: 1px dashed var(--dy-line);
  border-radius: 12px;
  padding: 18px;
  text-align: center;
}

/* Cards ----------------------------------------------------------------- */
.dx-youth-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
  gap: 14px;
}

.dx-youth-grid--two {
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.dx-youth-card {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
  min-height: 44px;
  padding: 18px;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  box-shadow: var(--dy-shadow);
  text-decoration: none;
  color: var(--dy-ink);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}

.dx-youth-card:hover,
.dx-youth-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(47, 109, 246, 0.16);
}

.dx-youth-card-title {
  margin: 0;
  font-size: 1.08rem;
}

.dx-youth-card-desc {
  margin: 0;
  color: var(--dy-muted);
  font-size: 0.92rem;
}

.dx-youth-card-meta {
  margin: 0;
  color: var(--dy-muted);
  font-size: 0.84rem;
}

.dx-youth-course-icon {
  font-size: 1.9rem;
  line-height: 1;
}

.dx-youth-badge {
  align-self: flex-start;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 600;
}

.dx-youth-badge--story {
  background: #e8f0ff;
  color: #2f6df6;
}

.dx-youth-badge--poem {
  background: #fdeee2;
  color: #cf6a1f;
}

.dx-youth-badge--page {
  background: #e6f7f0;
  color: #1d9e6e;
}

/* Breadcrumb ------------------------------------------------------------ */
.dx-youth-breadcrumb {
  color: var(--dy-muted);
  font-size: 0.9rem;
  margin: 0 0 10px;
}

.dx-youth-breadcrumb a {
  color: var(--dy-primary);
  text-decoration: none;
}

/* Course detail --------------------------------------------------------- */
.dx-youth-course-head {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  margin-bottom: 14px;
}

.dx-youth-course-icon-lg {
  font-size: 2.4rem;
  line-height: 1;
}

.dx-youth-course-head-text h1 {
  margin: 0 0 4px;
  font-size: clamp(1.35rem, 3.6vw, 1.9rem);
}

.dx-youth-course-head-text p {
  margin: 0;
  color: var(--dy-muted);
}

.dx-youth-progressbar {
  height: 10px;
  background: var(--dy-bg);
  border: 1px solid var(--dy-line);
  border-radius: 999px;
  overflow: hidden;
}

.dx-youth-progressbar-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--dy-primary), #6f9bff);
  transition: width 0.3s ease;
}

.dx-youth-progress-label {
  margin: 6px 0 0;
  color: var(--dy-muted);
  font-size: 0.88rem;
}

/* Lesson list ----------------------------------------------------------- */
.dx-youth-lessons {
  list-style: none;
  margin: 18px 0 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dx-youth-lesson-item a {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 44px;
  padding: 12px 16px;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--dy-ink);
}

.dx-youth-lesson-item.is-done a {
  background: #f2fbf7;
  border-color: #bfe8d6;
}

.dx-youth-lesson-no {
  flex: 0 0 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--dy-bg);
  color: var(--dy-primary);
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.9rem;
}

.dx-youth-lesson-title {
  flex: 1;
  min-width: 0;
}

.dx-youth-lesson-state {
  color: var(--dy-muted);
  font-size: 0.86rem;
  white-space: nowrap;
}

/* Lesson page ----------------------------------------------------------- */
.dx-youth-lesson-head {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.dx-youth-lesson-head h1 {
  margin: 0;
  font-size: clamp(1.4rem, 3.8vw, 2rem);
}

.dx-youth-done-flag {
  background: #e6f7f0;
  color: var(--dy-ok);
  border-radius: 999px;
  padding: 4px 12px;
  font-size: 0.84rem;
  font-weight: 600;
}

.dx-youth-lesson-body {
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(16px, 4vw, 30px);
  font-size: 1.02rem;
}

.dx-youth-lesson-body pre {
  background: #f6f8ff;
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 0.86rem;
}

.dx-youth-lesson-body code {
  background: #f0f4ff;
  border-radius: 6px;
  padding: 1px 6px;
  font-size: 0.9em;
}

/* Quiz ------------------------------------------------------------------ */
.dx-youth-quiz {
  margin-top: 20px;
  background: #fffdf6;
  border: 1px solid #f2e3c8;
  border-radius: var(--dy-radius);
  padding: clamp(14px, 3.5vw, 24px);
}

.dx-youth-quiz-title {
  margin: 0 0 8px;
  font-size: 1.05rem;
}

.dx-youth-quiz-question {
  margin: 0 0 12px;
  font-weight: 600;
}

.dx-youth-quiz-options {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 10px;
}

.dx-youth-quiz-option {
  min-height: 44px;
  padding: 10px 14px;
  background: #fff;
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  font-size: 0.95rem;
  cursor: pointer;
  text-align: left;
  color: var(--dy-ink);
}

.dx-youth-quiz-option:hover {
  border-color: var(--dy-primary);
}

.dx-youth-quiz-option.is-correct {
  background: #e6f7f0;
  border-color: var(--dy-ok);
  color: var(--dy-ok);
  font-weight: 700;
}

.dx-youth-quiz-option.is-wrong {
  background: #fdecec;
  border-color: var(--dy-bad);
  color: var(--dy-bad);
}

.dx-youth-quiz-feedback {
  margin: 12px 0 0;
  font-weight: 600;
}

.dx-youth-quiz-feedback.is-ok {
  color: var(--dy-ok);
}

.dx-youth-quiz-feedback.is-bad {
  color: var(--dy-bad);
}

/* Buttons --------------------------------------------------------------- */
.dx-youth-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  min-height: 44px;
  padding: 10px 20px;
  border-radius: 12px;
  border: 1px solid var(--dy-line);
  background: #fff;
  color: var(--dy-ink);
  font-size: 0.96rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, transform 0.15s ease;
}

.dx-youth-btn:hover {
  transform: translateY(-1px);
}

.dx-youth-btn--primary {
  background: var(--dy-primary);
  border-color: var(--dy-primary);
  color: #fff;
}

.dx-youth-btn--primary:hover {
  background: var(--dy-primary-dark);
}

.dx-youth-btn--ghost {
  background: transparent;
}

.dx-youth-btn--small {
  min-height: 36px;
  padding: 6px 14px;
  font-size: 0.86rem;
}

.dx-youth-btn[disabled] {
  opacity: 0.6;
  cursor: default;
  transform: none;
}

.dx-youth-link {
  color: var(--dy-primary);
  text-decoration: none;
}

.dx-youth-link:hover {
  text-decoration: underline;
}

.dx-youth-action-msg {
  font-size: 0.9rem;
}

.dx-youth-action-msg.is-ok {
  color: var(--dy-ok);
}

.dx-youth-action-msg.is-bad {
  color: var(--dy-bad);
}

.dx-youth-login-hint {
  color: var(--dy-muted);
  font-size: 0.92rem;
}

.dx-youth-privacy-banner {
  background: #eef4ff;
  border: 1px solid #d8e4ff;
  border-radius: 12px;
  padding: 10px 14px;
  color: #3a4d77;
  font-size: 0.9rem;
  margin: 0 0 16px;
}

.dx-youth-privacy {
  background: #eef4ff;
  border-radius: 12px;
  padding: 12px 16px;
}

/* Lesson nav ------------------------------------------------------------ */
.dx-youth-lesson-nav {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 22px;
}

.dx-youth-lesson-nav-link {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 10px 16px;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  text-decoration: none;
  color: var(--dy-ink);
  max-width: 48%;
}

.dx-youth-lesson-nav-link--next {
  text-align: right;
}

/* Chat ------------------------------------------------------------------ */
.dx-youth-chat-log {
  display: flex;
  flex-direction: column;
  gap: 12px;
  min-height: 220px;
  max-height: 56vh;
  overflow-y: auto;
  padding: 16px;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
}

.dx-youth-msg {
  display: flex;
}

.dx-youth-msg--user {
  justify-content: flex-end;
}

.dx-youth-msg-bubble {
  max-width: min(86%, 640px);
  padding: 10px 16px;
  border-radius: 16px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 0.98rem;
}

.dx-youth-msg--assistant .dx-youth-msg-bubble {
  background: var(--dy-bg);
  border: 1px solid var(--dy-line);
  border-bottom-left-radius: 6px;
}

.dx-youth-msg--user .dx-youth-msg-bubble {
  background: var(--dy-primary);
  color: #fff;
  border-bottom-right-radius: 6px;
}

.dx-youth-msg-bubble.is-typing::after {
  content: '…';
  animation: dx-youth-dots 1s infinite;
}

.dx-youth-msg-bubble.is-warn {
  background: #fff8ec;
  border-color: #f2dfb8;
}

@keyframes dx-youth-dots {
  0%, 100% { opacity: 0.3; }
  50% { opacity: 1; }
}

.dx-youth-quick {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 14px 0;
}

.dx-youth-chip {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid var(--dy-line);
  background: #fff;
  color: var(--dy-ink);
  font-size: 0.88rem;
  cursor: pointer;
  text-decoration: none;
}

.dx-youth-chip:hover,
.dx-youth-chip.is-active {
  border-color: var(--dy-primary);
  color: var(--dy-primary);
  background: #eef4ff;
}

.dx-youth-ask-form {
  display: flex;
  gap: 10px;
  align-items: flex-end;
  margin-top: 4px;
}

.dx-youth-ask-input,
.dx-youth-input {
  width: 100%;
  min-height: 44px;
  padding: 10px 14px;
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  font: inherit;
  color: var(--dy-ink);
  background: #fff;
  resize: vertical;
}

.dx-youth-ask-input:focus,
.dx-youth-input:focus {
  outline: 2px solid #bcd2ff;
  border-color: var(--dy-primary);
}

.dx-youth-ask-form .dx-youth-ask-input {
  flex: 1;
}

.dx-youth-ask-send {
  flex: 0 0 auto;
}

.dx-youth-limit {
  color: var(--dy-muted);
  font-size: 0.84rem;
  margin: 10px 0 0;
}

/* Studio ---------------------------------------------------------------- */
.dx-youth-panel {
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(14px, 3.5vw, 24px);
  margin: 16px 0;
}

.dx-youth-label {
  display: block;
  font-weight: 600;
  margin-bottom: 8px;
}

.dx-youth-panel-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 12px;
}

.dx-youth-submit-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  margin-top: 14px;
}

.dx-youth-submit-row .dx-youth-input {
  flex: 1 1 220px;
  width: auto;
}

.dx-youth-submit-msg {
  margin: 10px 0 0;
  font-size: 0.92rem;
}

.dx-youth-steps {
  margin: 0;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.dx-youth-preview-note {
  color: var(--dy-muted);
  font-size: 0.88rem;
  margin: 0 0 10px;
}

.dx-youth-preview {
  display: block;
  width: 100%;
  height: clamp(300px, 56vh, 520px);
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  background: #fff;
}

.dx-youth-code-view {
  margin-top: 12px;
}

.dx-youth-code-view summary {
  cursor: pointer;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  color: var(--dy-primary);
}

.dx-youth-code {
  background: #f6f8ff;
  border-radius: 10px;
  padding: 12px 14px;
  overflow-x: auto;
  font-size: 0.84rem;
  max-height: 260px;
}

/* Showcase / work ------------------------------------------------------- */
.dx-youth-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-bottom: 16px;
}

.dx-youth-work-text {
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(16px, 4vw, 30px);
  white-space: pre-line;
  font-size: 1.02rem;
}

.dx-youth-work-frame {
  border-radius: var(--dy-radius);
  overflow: hidden;
}

.dx-youth-work-meta {
  color: var(--dy-muted);
  margin: 6px 0 0;
}

.dx-youth-status {
  display: inline-block;
  border-radius: 999px;
  padding: 3px 12px;
  font-size: 0.8rem;
  font-weight: 600;
}

.dx-youth-status--pending {
  background: #fff4e2;
  color: #b8741a;
}

.dx-youth-status--published {
  background: #e6f7f0;
  color: var(--dy-ok);
}

.dx-youth-status--featured {
  background: #eef4ff;
  color: var(--dy-primary);
}

.dx-youth-status--returned {
  background: #fdecec;
  color: var(--dy-bad);
}

.dx-youth-like-btn.is-liked {
  background: #fff0f0;
  border-color: #ffc9c9;
  color: #d64545;
}

.dx-youth-work-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: 16px;
}

.dx-youth-work-foot {
  margin-top: 22px;
}

/* Me page --------------------------------------------------------------- */
.dx-youth-profile-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 10px;
  flex-wrap: wrap;
}

.dx-youth-profile-row .dx-youth-label {
  flex: 0 0 72px;
  margin: 0;
}

.dx-youth-profile-row .dx-youth-input {
  flex: 1 1 200px;
}

.dx-youth-badges {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 12px;
}

.dx-youth-badge-item {
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: 16px 12px;
  text-align: center;
  opacity: 0.55;
  filter: grayscale(0.8);
}

.dx-youth-badge-item.is-earned {
  opacity: 1;
  filter: none;
  border-color: #ffd9a8;
  background: #fffaf2;
}

.dx-youth-badge-icon {
  display: block;
  font-size: 2rem;
  line-height: 1.2;
}

.dx-youth-badge-name {
  display: block;
  font-weight: 700;
}

.dx-youth-badge-progress {
  display: block;
  color: var(--dy-muted);
  font-size: 0.82rem;
}

.dx-youth-badge-desc {
  margin: 6px 0 0;
  color: var(--dy-muted);
  font-size: 0.8rem;
}

.dx-youth-myworks {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dx-youth-mywork {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  background: var(--dy-card);
  border: 1px solid var(--dy-line);
  border-radius: 12px;
  padding: 12px 16px;
}

.dx-youth-mywork a {
  color: var(--dy-ink);
  font-weight: 600;
  text-decoration: none;
}

.dx-youth-mywork a:hover {
  color: var(--dy-primary);
}

.dx-youth-mywork-meta {
  color: var(--dy-muted);
  font-size: 0.84rem;
  margin-left: auto;
}

/* Admin ----------------------------------------------------------------- */
.dx-youth-table {
  display: block;
  width: 100%;
  overflow-x: auto;
  border-collapse: collapse;
  background: var(--dy-card);
  border-radius: 12px;
  font-size: 0.92rem;
}

.dx-youth-table th,
.dx-youth-table td {
  padding: 10px 12px;
  border-bottom: 1px solid var(--dy-line);
  text-align: left;
  white-space: nowrap;
}

.dx-youth-table a {
  color: var(--dy-primary);
  text-decoration: none;
}

/* Guide ----------------------------------------------------------------- */
.dx-youth-guide-list {
  margin: 0;
  padding-left: 22px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.dx-youth-guide-cta {
  background: linear-gradient(135deg, #eaf1ff, #fff4e8);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(16px, 4vw, 28px);
}

.dx-youth-parents {
  background: var(--dy-bg);
  border: 1px solid var(--dy-line);
  border-radius: var(--dy-radius);
  padding: clamp(16px, 4vw, 28px);
}

.dx-youth-parents-text {
  color: var(--dy-muted);
  margin: 0 0 10px;
}

/* Small screens --------------------------------------------------------- */
@media (max-width: 420px) {
  .dx-youth-pillars {
    grid-template-columns: repeat(2, 1fr);
  }

  .dx-youth-grid {
    grid-template-columns: 1fr;
  }

  .dx-youth-ask-form {
    flex-direction: column;
    align-items: stretch;
  }

  .dx-youth-ask-send {
    width: 100%;
  }

  .dx-youth-lesson-nav-link {
    max-width: 100%;
    flex: 1;
  }

  .dx-youth-mywork-meta {
    margin-left: 0;
    flex-basis: 100%;
  }
}