.learning-hub {
  --hub-blue: #2459b5;
  --hub-ink: #172a45;
  --hub-soft: #eef4ff;
}
.hub-intro {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 24px;
  background: linear-gradient(118deg, #173f8d, #2b67c8);
  color: #fff;
  padding: 28px 30px;
  border-radius: 22px;
}
.hub-intro h2 {
  font-size: clamp(1.65rem, 3vw, 2.35rem);
  margin: 7px 0;
}
.hub-intro p {
  margin: 0;
  max-width: 720px;
  color: #e6efff;
  line-height: 1.65;
}
.eyebrow {
  font-size: 0.75rem;
  letter-spacing: 0.12em;
  font-weight: 800;
  color: #bfe1ff;
}
.streak {
  width: 92px;
  height: 92px;
  border: 1px solid #ffffff48;
  background: #ffffff14;
  border-radius: 22px;
  display: grid;
  place-items: center;
  text-align: center;
  flex: 0 0 auto;
}
.streak strong {
  font-size: 2rem;
  line-height: 1;
  margin-top: 12px;
}
.streak span {
  font-size: 0.75rem;
  margin-top: -10px;
}
.course-builder {
  display: grid;
  grid-template-columns: 1fr 1fr 1.5fr auto;
  align-items: end;
  gap: 14px;
  margin-top: 18px;
  padding: 18px;
}
.picker-step {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 4px 9px;
  align-items: center;
}
.picker-step > span {
  grid-row: 1/3;
  width: 30px;
  height: 30px;
  border-radius: 9px;
  background: #e6efff;
  color: #2459b5;
  display: grid;
  place-items: center;
  font-weight: 800;
}
.picker-step label {
  font-size: 0.78rem;
  font-weight: 800;
  color: #52637a;
}
.profile-grade-lock strong {
  min-height: 44px;
  display: flex;
  align-items: center;
  padding: 9px 11px;
  border: 1px solid #b9d3ff;
  border-radius: 10px;
  background: #eef5ff;
  color: #163f8f;
  font-size: 0.95rem;
}
.picker-step select {
  border: 1px solid #d7e0ed;
  border-radius: 10px;
  background: #fff;
  padding: 9px 11px;
  width: 100%;
  min-height: 44px;
}
.hub-primary {
  border: 0;
  background: #2459b5;
  color: #fff;
  border-radius: 11px;
  padding: 11px 18px;
  white-space: nowrap;
}
.hub-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  gap: 20px;
  align-items: start;
}
.hub-layout.quiz-mode {
  grid-template-columns: 1fr;
}
.hub-layout.quiz-mode > div,
.hub-layout.quiz-mode .study-panel {
  grid-column: 1 / -1;
}
.hub-layout.quiz-mode .study-panel {
  position: static;
  margin-top: 0;
  min-height: 0;
}
.mode-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}
.mode-card {
  border: 1px solid #dce4ef;
  background: #fff;
  border-radius: 16px;
  padding: 16px;
  text-align: left;
  min-height: 137px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  box-shadow: 0 5px 18px #1f4d8b0a;
}
.mode-card:hover,
.mode-card.active {
  border-color: #7ca5e8;
  box-shadow: 0 8px 24px #2459b51a;
  transform: translateY(-1px);
}
.mode-card strong {
  font-size: 0.98rem;
  margin: 12px 0 4px;
}
.mode-card small {
  color: #67778d;
  line-height: 1.4;
}
.mode-icon {
  width: 38px;
  height: 38px;
  border-radius: 11px;
  display: grid;
  place-items: center;
  font-weight: 850;
  font-size: 1.1rem;
}
.mode-icon.blue {
  background: #e7efff;
  color: #2459b5;
}
.mode-icon.teal {
  background: #e0f7f4;
  color: #087c73;
}
.mode-icon.gold {
  background: #fff1c9;
  color: #916500;
}
.mode-icon.violet {
  background: #f0e9ff;
  color: #6d44b8;
}
.mode-icon.coral {
  background: #ffe9e4;
  color: #b6503c;
}
.mode-icon.green {
  background: #e8f7ed;
  color: #287641;
}
.mode-icon.navy {
  background: #e9edf5;
  color: #324765;
}
.mode-icon.cyan {
  background: #e4f6fb;
  color: #21758c;
}
.study-panel {
  margin-top: 0;
  min-height: 260px;
  padding: clamp(20px, 3vw, 30px);
  position: static;
  border-color: #b9cdef;
  box-shadow: 0 14px 34px #2459b514;
  scroll-margin-top: 18px;
}
.study-panel:focus{outline:3px solid #cfe0ff;outline-offset:3px}
.study-panel::before{content:"Seçtiğin çalışma alanı";display:block;margin-bottom:12px;color:#52637a;font-size:.78rem;font-weight:850;letter-spacing:.04em;text-transform:uppercase}
.topic-visual{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin:16px 0 20px;padding:16px;border-radius:16px;background:linear-gradient(120deg,#eef5ff,#e8faf6);overflow:hidden}.topic-visual span{min-height:52px;border:1px solid #cbdcf3;border-radius:12px;background:#fff;display:grid;place-items:center;text-align:center;padding:8px;font-weight:800;color:#234875;animation:topicFloat 2.4s ease-in-out infinite}.topic-visual span:nth-child(2){animation-delay:.18s}.topic-visual span:nth-child(3){animation-delay:.36s}@keyframes topicFloat{0%,100%{transform:translateY(0)}50%{transform:translateY(-4px)}}
.study-panel h3 {
  font-size: 1.15rem;
  margin: 0 0 8px;
}
.study-panel p {
  color: #5d6d83;
  line-height: 1.6;
}
.panel-badge {
  display: inline-flex;
  background: #edf3ff;
  color: #2459b5;
  border-radius: 999px;
  padding: 6px 9px;
  font-size: 0.73rem;
  font-weight: 800;
  margin-bottom: 16px;
}
.panel-action {
  display: block;
  width: 100%;
  border: 0;
  border-radius: 11px;
  background: #2459b5;
  color: white;
  padding: 12px;
  margin-top: 14px;
  font-weight: 750;
  text-align: center;
  text-decoration: none;
}
.panel-action.secondary {
  background: #eff3f9 !important;
  color: #294768 !important;
}
.panel-list {
  padding: 0;
  list-style: none;
  display: grid;
  gap: 10px;
}
.panel-list li {
  padding: 11px 12px;
  background: #f6f8fb;
  border-radius: 10px;
  line-height: 1.5;
}
.quiz-option {
  display: block;
  width: 100%;
  text-align: left;
  border: 1px solid #dce4ef;
  background: white;
  border-radius: 10px;
  padding: 11px;
  margin: 8px 0;
}
.quiz-shell {max-width:860px;margin:6px auto 0}
.quiz-top{display:flex;align-items:center;justify-content:space-between;gap:12px;margin:14px 0}.quiz-top span{font-size:.82rem;color:#64748b;font-weight:750}.quiz-progress{height:8px;background:#e7edf6;border-radius:99px;overflow:hidden;margin:0 0 22px}.quiz-progress i{display:block;height:100%;background:linear-gradient(90deg,#2459b5,#39aa90);transition:width .25s}.quiz-question{font-size:clamp(1.05rem,2vw,1.28rem);line-height:1.55;margin:0 0 17px}.quiz-options{display:grid;gap:11px}.quiz-option{display:flex;align-items:center;gap:12px;font-size:1rem;min-height:54px}.quiz-option b{width:32px;height:32px;border-radius:9px;background:#edf3ff;color:#2459b5;display:grid;place-items:center;flex:0 0 auto}.quiz-option:hover,.quiz-option:focus{border-color:#7ca5e8;background:#f8fbff}.quiz-finish{padding:24px;border-radius:17px;background:#eff9f6;text-align:center}.quiz-finish strong{font-size:1.25rem;display:block;margin-bottom:8px}.quiz-privacy{font-size:.82rem;color:#64748b;margin-top:14px;padding:10px 12px;border-radius:10px;background:#f6f8fb}
.quiz-review{display:grid;gap:14px;padding:0;margin:18px 0 22px;list-style:none}.quiz-review-item{padding:17px;border:1px solid #dbe4ef;border-left:5px solid #2f9b72;border-radius:14px;background:#fff}.quiz-review-item.wrong{border-left-color:#d85656;background:#fffafa}.quiz-review-head{display:flex;align-items:flex-start;justify-content:space-between;gap:14px}.quiz-review-head strong{line-height:1.45}.quiz-review-head span{flex:0 0 auto;padding:4px 9px;border-radius:999px;background:#e5f6ef;color:#16724f;font-size:.78rem;font-weight:850}.quiz-review-item.wrong .quiz-review-head span{background:#fdeaea;color:#a93636}.quiz-review-item p{margin:9px 0 0;line-height:1.45}.quiz-review-item small{display:block;margin-top:9px;color:#526173;line-height:1.5}.quiz-review+.panel-action{display:block;margin:0 auto}
.parent-quiz-card>p{margin-bottom:16px}.parent-quiz-result{border:1px solid #dce4ef;border-radius:14px;padding:15px;margin-top:12px}.parent-quiz-result summary{cursor:pointer;font-weight:800}.parent-quiz-result ol{line-height:1.55;padding-left:22px}.parent-quiz-result li{margin:10px 0}.parent-answer{color:#17653c;font-weight:750}.parent-empty{padding:14px;border-radius:12px;background:#f6f8fb}
.continue-list{display:grid;gap:12px}.continue-empty{color:#68758b;text-align:center;padding:24px}.continue-card a{border:0;background:#edf3ff;color:#2459b5;border-radius:10px;padding:10px 14px;text-decoration:none;font-weight:800;white-space:nowrap}.continue-kind{display:inline-block;font-size:.7rem;font-weight:850;color:#21758c;background:#e4f6fb;border-radius:999px;padding:4px 7px;margin-bottom:4px}
.continue-row {
  margin-top: 30px;
}
.continue-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
}
.continue-mark {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: #e7efff;
  color: #2459b5;
  display: grid;
  place-items: center;
  font-weight: 900;
  font-size: 1.2rem;
}
.continue-card > div:nth-child(2) {
  flex: 1;
}
.continue-card p {
  margin: 3px 0 8px !important;
  font-size: 0.85rem !important;
}
.mini-progress {
  height: 6px;
  background: #e8edf4;
  border-radius: 99px;
  overflow: hidden;
}
.mini-progress i {
  height: 100%;
  display: block;
  background: #36a98b;
}
.continue-card button,
.continue-card a {
  border: 0;
  background: #edf3ff;
  color: #2459b5;
  border-radius: 10px;
  padding: 10px 14px;
}
.hub-chat {
  height: 92px;
  width: 100%;
  resize: vertical;
  border: 1px solid #d7e0ed;
  border-radius: 11px;
  padding: 11px;
  font: inherit;
}
.hub-answer {
  margin-top: 12px;
  padding: 12px;
  background: #f3f7fc;
  border-radius: 11px;
  white-space: pre-wrap;
  line-height: 1.6;
}
.loading-dot {
  animation: hubPulse 1s infinite alternate;
}
@keyframes hubPulse {
  to {
    opacity: 0.35;
  }
}
@media (max-width: 1180px) {
  .mode-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .course-builder {
    grid-template-columns: 1fr 1fr;
  }
  .hub-primary {
    grid-column: 1/-1;
  }
}
@media (max-width: 700px) {
  .hub-intro {
    padding: 22px;
  }
  .streak {
    display: none;
  }
  .course-builder {
    grid-template-columns: 1fr;
  }
  .picker-step.wide,
  .hub-primary {
    grid-column: auto;
  }
  .mode-grid {
    grid-template-columns: 1fr 1fr;
  }
  .topic-visual{grid-template-columns:1fr}.topic-visual span{min-height:44px}
  .mode-card {
    min-height: 125px;
    padding: 14px;
  }
  .continue-card {
    align-items: flex-start;
    flex-wrap: wrap;
  }
  .continue-card button {
    width: 100%;
  }
}
.classroom-feature{margin-top:30px;padding:28px;border-radius:20px;background:linear-gradient(120deg,#183657,#245d78);color:white;display:flex;justify-content:space-between;align-items:center;gap:30px}.classroom-feature h2{font-size:clamp(1.35rem,2.5vw,1.9rem);margin:7px 0 9px;max-width:720px}.classroom-feature p{color:#dcecf3;max-width:760px;line-height:1.65}.classroom-feature>a{flex:0 0 auto;text-decoration:none;background:white;color:#183f68;border-radius:11px;padding:13px 17px;font-weight:750}.classroom-points{display:flex;gap:8px;flex-wrap:wrap;margin-top:15px}.classroom-points span{border:1px solid #ffffff38;background:#ffffff12;border-radius:999px;padding:7px 10px;font-size:.78rem}@media(max-width:760px){.classroom-feature{align-items:flex-start;flex-direction:column;padding:22px}.classroom-feature>a{width:100%;text-align:center}}