/* MIKA Academy v3 — Duolingo-style full-viewport screens (no scroll) */

html.mika-lesson-mode,
body.mika-lesson-mode {
  overflow: hidden;
  height: 100%;
  width: 100%;
  touch-action: pan-x;
}

body.mika-lesson-mode #content {
  position: fixed;
  inset: 0;
  overflow: hidden;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  max-height: none;
  padding: 0;
  margin: 0;
  border: none;
  border-radius: 0;
  box-shadow: none;
  background: #0F172A;
  z-index: 900;
}

body.mika-lesson-mode .container {
  max-width: none;
  padding: 0;
  margin: 0;
}

body.mika-lesson-mode .container > .header,
body.mika-lesson-mode .mika-gam-stats,
body.mika-lesson-mode #lang-toggle-btn,
body.mika-lesson-mode .mhav82-topbar,
body.mika-lesson-mode .mika-v79-login-btn {
  display: none !important;
}

.mika-screen {
  position: fixed;
  top: 0; left: 0;
  width: 100vw;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  padding: 20px;
  box-sizing: border-box;
  overflow: hidden;
  background: #0F172A;
  z-index: 50;
  font-family: 'Cairo', sans-serif;
}

.mika-screen.active {
  z-index: 51;
}

.mika-screen .content-area {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  padding: 12px 16px 8px;
  min-height: 0;
}

.mika-screen .content-area::-webkit-scrollbar {
  display: none;
}

.mika-screen .action-bar {
  flex-shrink: 0;
  padding: 16px 0 8px;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
}

/* Progress bar (top) */
.lesson-progress-bar {
  position: relative;
  flex-shrink: 0;
  height: 56px;
  background: #0F172A;
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 0 16px;
  z-index: 10;
  border-bottom: 1px solid #1E293B;
}

.lesson-progress-bar .close-btn {
  background: none;
  border: none;
  color: #94A3B8;
  font-size: 1.2rem;
  cursor: pointer;
  padding: 8px;
  line-height: 1;
  border-radius: 8px;
}

.lesson-progress-bar .close-btn:hover {
  background: #1E293B;
}

.lesson-progress-bar .progress-track {
  flex: 1;
  height: 12px;
  background: #1E293B;
  border-radius: 6px;
  overflow: hidden;
}

.lesson-progress-bar .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, #FF8C42, #FFB347);
  border-radius: 6px;
  transition: width 0.4s ease;
}

.lesson-progress-bar .xp-counter {
  font-size: 0.85rem;
  font-weight: 700;
  color: #FF8C42;
  white-space: nowrap;
}

/* Navigation buttons */
.btn-next,
.mika-screen .mika-action-btn.primary {
  background: #FF8C42;
  color: white;
  border: none;
  border-radius: 16px;
  padding: 14px 32px;
  font-size: 1.1rem;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  cursor: pointer;
  min-width: 120px;
  transition: transform 0.1s, box-shadow 0.1s;
  box-shadow: 0 4px 0 #c96a28;
}

.btn-next:active,
.mika-screen .mika-action-btn.primary:active {
  transform: scale(0.96);
  box-shadow: none;
}

.btn-prev {
  background: transparent;
  color: #94A3B8;
  border: 2px solid #334155;
  border-radius: 16px;
  padding: 14px 24px;
  font-family: 'Cairo', sans-serif;
  font-weight: 600;
  cursor: pointer;
}

.btn-prev:disabled {
  opacity: 0.35;
  cursor: default;
}

.progress-dots {
  display: flex;
  gap: 6px;
  align-items: center;
  justify-content: center;
  flex: 1;
}

.progress-dots .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #334155;
  transition: background 0.2s, transform 0.2s;
}

.progress-dots .dot.active {
  background: #FF8C42;
  transform: scale(1.2);
}

.progress-dots .dot.done {
  background: #22C55E;
}

/* Slide transitions */
@keyframes slideExitLeft {
  from { transform: translateX(0); opacity: 1; }
  to   { transform: translateX(-60px); opacity: 0; }
}

@keyframes slideEnterRight {
  from { transform: translateX(60px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

@keyframes slideExitRight {
  from { transform: translateX(0); opacity: 1; }
  to   { transform: translateX(60px); opacity: 0; }
}

@keyframes slideEnterLeft {
  from { transform: translateX(-60px); opacity: 0; }
  to   { transform: translateX(0); opacity: 1; }
}

.slide-exit-left   { animation: slideExitLeft   0.25s ease forwards; }
.slide-enter-right { animation: slideEnterRight 0.25s ease forwards; }
.slide-exit-right  { animation: slideExitRight  0.25s ease forwards; }
.slide-enter-left  { animation: slideEnterLeft  0.25s ease forwards; }

/* Swipe hint */
.swipe-hint {
  position: fixed;
  bottom: 80px;
  left: 50%;
  transform: translateX(-50%);
  background: rgba(255, 140, 66, 0.15);
  border: 1px solid #FF8C42;
  border-radius: 20px;
  padding: 8px 20px;
  font-size: 0.8rem;
  color: #FF8C42;
  animation: mikaFadeInOut 3s ease forwards;
  pointer-events: none;
  z-index: 200;
}

@keyframes mikaFadeInOut {
  0%   { opacity: 0; }
  20%  { opacity: 1; }
  80%  { opacity: 1; }
  100% { opacity: 0; }
}

/* Visual feedback */
@keyframes confettiFall {
  to { transform: translateY(110vh) rotate(720deg); opacity: 0; }
}

.confetti-piece {
  position: fixed;
  top: -10px;
  z-index: 9999;
  pointer-events: none;
  animation: confettiFall 1.2s ease forwards;
}

@keyframes shake {
  0%, 100% { transform: translateX(0); }
  20%      { transform: translateX(-8px); }
  40%      { transform: translateX(8px); }
  60%      { transform: translateX(-5px); }
  80%      { transform: translateX(5px); }
}

.shake { animation: shake 0.4s ease; }

/* Duolingo quiz inside dark screen */
.mika-screen .mika-question-header {
  background: transparent;
  border: none;
  padding: 0 0 8px;
}

.mika-screen .mika-question-card {
  background: #1E293B;
  color: #F1F5F9;
  border: 1px solid #334155;
}

.mika-screen .mika-question-text {
  color: #F8FAFC;
}

.mika-screen .mika-question-type-label {
  color: #94A3B8;
}

.mika-screen .mika-choice-btn {
  background: #1E293B;
  border-color: #334155;
  color: #F1F5F9;
}

.mika-screen .mika-choice-btn:hover:not(:disabled) {
  border-color: #FF8C42;
}

.mika-screen .mika-action-btn {
  margin: 8px 0;
}

.mika-screen .mika-action-btn.secondary {
  background: #334155;
  color: #E2E8F0;
  border: none;
  box-shadow: none;
}

/* Stage lesson full viewport */
.mika-stage-lesson.mika-screen {
  position: fixed;
  inset: 0;
  width: 100%;
  max-width: none;
  margin: 0;
  height: 100vh;
  height: 100dvh;
  display: flex;
  flex-direction: column;
  background: #0F172A;
  color: #F1F5F9;
  z-index: 901;
  padding: 0;
  box-sizing: border-box;
  overflow: hidden;
}

.mika-stage-lesson .mika-stage-top {
  flex-shrink: 0;
  padding: 12px 16px;
  border-bottom: 1px solid #1E293B;
}

.mika-stage-lesson .mika-stage-body {
  flex: 1;
  overflow-y: auto;
  scrollbar-width: none;
  padding: 16px;
  min-height: 0;
}

.mika-stage-lesson .mika-stage-body::-webkit-scrollbar {
  display: none;
}

.mika-stage-lesson .mika-stage-foot {
  flex-shrink: 0;
  display: flex !important;
  align-items: center;
  gap: 12px;
  visibility: visible !important;
  background: #0F172A;
  border-top: 1px solid #1E293B;
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom, 0px));
  z-index: 10;
}

.mika-stage-lesson .mika-stage-foot .btn-prev {
  flex-shrink: 0;
  background: transparent;
  border: 2px solid #334155;
  color: #94A3B8;
  border-radius: 12px;
  padding: 10px 14px;
  font-family: 'Cairo', sans-serif;
  cursor: pointer;
}

.mika-stage-lesson .mika-stage-foot .mika-stage-next,
.mika-stage-lesson .mika-stage-foot .btn-next {
  flex: 1;
  min-height: 48px;
  background: #FF8C42 !important;
  color: #fff !important;
  border: none;
  border-radius: 16px;
  padding: 14px;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  box-shadow: 0 4px 0 #c96a28;
}

.mika-stage-inline-next {
  display: block;
  width: 100%;
  margin-top: 20px;
  min-height: 48px;
  background: #FF8C42;
  color: #fff;
  border: none;
  border-radius: 16px;
  padding: 14px;
  font-family: 'Cairo', sans-serif;
  font-weight: 700;
  font-size: 1.05rem;
  cursor: pointer;
  box-shadow: 0 4px 0 #c96a28;
}

/* Hudhud context button */
.hudhud-context-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(255, 140, 66, 0.12);
  border: 1px solid rgba(255, 140, 66, 0.3);
  cursor: pointer;
  font-size: 1rem;
  transition: background 0.2s, transform 0.1s;
  vertical-align: middle;
  margin-inline-start: 8px;
}

.hudhud-context-btn:hover {
  background: rgba(255, 140, 66, 0.25);
  transform: scale(1.1);
}

.hudhud-context-btn:active {
  transform: scale(0.95);
}

/* Subscribe CTA */
.subscribe-cta {
  background: linear-gradient(135deg, rgba(255, 140, 66, 0.1), rgba(255, 140, 66, 0.05));
  border: 1px solid rgba(255, 140, 66, 0.2);
  border-radius: 16px;
  padding: 20px;
  text-align: center;
  margin: 16px 0;
}

.subscribe-cta-text {
  color: #CBD5E1;
  font-family: 'Cairo', sans-serif;
  margin: 0 0 12px;
}

/* Hudhud slide-up panel */
.hudhud-panel {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  height: 70vh;
  background: #1E293B;
  border-radius: 24px 24px 0 0;
  display: flex;
  flex-direction: column;
  z-index: 500;
  padding: 16px;
  gap: 12px;
  box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.4);
  transition: transform 0.3s ease;
}

.hudhud-panel.hidden {
  transform: translateY(100%);
  pointer-events: none;
}

.hudhud-header {
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 12px;
  border-bottom: 1px solid #334155;
}

.hudhud-avatar { font-size: 1.5rem; }
.hudhud-title  { flex: 1; font-weight: 700; color: #FF8C42; font-family: 'Cairo', sans-serif; }
.hudhud-close  { background: none; border: none; color: #94A3B8; font-size: 1.2rem; cursor: pointer; }

.hudhud-context-badge {
  background: rgba(255, 140, 66, 0.1);
  border: 1px solid rgba(255, 140, 66, 0.2);
  border-radius: 8px;
  padding: 6px 12px;
  font-size: 0.8rem;
  color: #FF8C42;
  font-family: 'Cairo', sans-serif;
}

.hudhud-suggested {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.hudhud-chip {
  background: #0F172A;
  border: 1px solid #334155;
  border-radius: 20px;
  padding: 6px 14px;
  font-size: 0.8rem;
  color: #CBD5E1;
  cursor: pointer;
  font-family: 'Cairo', sans-serif;
  transition: border-color 0.2s;
}

.hudhud-chip:hover { border-color: #FF8C42; color: #FF8C42; }

.hudhud-messages {
  flex: 1;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 10px;
  scrollbar-width: none;
}

.hudhud-messages::-webkit-scrollbar { display: none; }

.hudhud-msg {
  max-width: 88%;
  padding: 10px 12px;
  border-radius: 12px;
  font-size: 0.9rem;
  line-height: 1.6;
  font-family: 'Cairo', sans-serif;
}

.hudhud-msg.user {
  align-self: flex-end;
  background: #1e3a8a;
  color: #fff;
}

.hudhud-msg.bot {
  align-self: flex-start;
  background: #0F172A;
  border: 1px solid #334155;
  color: #E2E8F0;
}

.hudhud-msg.err { border-color: #7f1d1d; color: #fca5a5; }

.hudhud-input-row {
  display: flex;
  gap: 8px;
}

.hudhud-input-row input {
  flex: 1;
  background: #0F172A;
  border: 1px solid #334155;
  border-radius: 12px;
  padding: 12px 16px;
  color: white;
  font-family: 'Cairo', sans-serif;
  font-size: 0.95rem;
  outline: none;
}

.hudhud-input-row input:focus { border-color: #FF8C42; }

.hudhud-input-row button {
  background: #FF8C42;
  border: none;
  border-radius: 12px;
  width: 48px;
  color: white;
  font-size: 1.2rem;
  cursor: pointer;
}

/* Sound toggle in lesson bar */
.sound-toggle {
  background: none;
  border: none;
  font-size: 1.1rem;
  cursor: pointer;
  padding: 6px;
  line-height: 1;
  border-radius: 8px;
}

.sound-toggle:hover {
  background: #1E293B;
}

/* Slide lesson viewer */
.mika-lesson-intro,
.mika-lesson-quiz-intro {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
}

.mika-lesson-icon {
  font-size: 3rem;
  margin-bottom: 12px;
}

.mika-lesson-title {
  font-size: 1.35rem;
  font-weight: 900;
  color: #F8FAFC;
  margin: 0 0 8px;
  line-height: 1.4;
}

.mika-lesson-unit {
  color: #94A3B8;
  font-size: 0.9rem;
  margin-bottom: 16px;
}

.mika-lesson-section-label {
  font-size: 1rem;
  font-weight: 800;
  color: #FF8C42;
  margin: 0 0 12px;
  align-self: flex-start;
  width: 100%;
}

.mika-lesson-body {
  color: #E2E8F0;
  font-size: 1rem;
  line-height: 1.75;
}

.mika-lesson-muted {
  color: #94A3B8;
  font-size: 0.95rem;
}

.mika-lesson-obj-list {
  text-align: start;
  color: #CBD5E1;
  padding-inline-start: 20px;
  line-height: 1.7;
}

.mika-lesson-answer {
  margin-top: 16px;
  padding: 12px;
  background: rgba(34, 197, 94, 0.12);
  border: 1px solid rgba(34, 197, 94, 0.3);
  border-radius: 12px;
  color: #86EFAC;
}

.mika-lesson-video-wrap {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  border-radius: 12px;
  overflow: hidden;
  background: #000;
}

.mika-lesson-video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.mika-lesson-flow .lesson-progress-bar {
  position: relative;
  margin: -20px -20px 0;
  width: calc(100% + 40px);
}

.xp-pulse {
  animation: xpPulse 0.4s ease;
}

@keyframes xpPulse {
  0%, 100% { transform: scale(1); }
  50%      { transform: scale(1.12); color: #FFB347; }
}