/**
 * 강의 완료 시스템 스타일 (presentation-nav 통합 버전)
 * @author 윤찬 (TwentyOz Inc.)
 * @version 2.0
 */

/* CSS 변수 정의 - 완료 시스템용 */
:root {
  --completion-primary: #10b981;
  --completion-primary-hover: #059669;
  --completion-secondary: #6b7280;
  --completion-danger: #ef4444;
  --completion-warning: #f59e0b;
  --completion-info: #3b82f6;
  --completion-success: #10b981;
  --completion-bg: #ffffff;
  --completion-border: #e5e7eb;
  --completion-text: #374151;
  --completion-text-light: #6b7280;
  --completion-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px 0 rgba(0, 0, 0, 0.06);
  --completion-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --completion-radius: 8px;
  --completion-radius-lg: 12px;
  --completion-transition: all 0.2s ease-in-out;
}

/* 다크 테마 */
[data-theme="dark"] {
  --completion-primary: #34d399;
  --completion-primary-hover: #10b981;
  --completion-secondary: #9ca3af;
  --completion-bg: #1f2937;
  --completion-border: #374151;
  --completion-text: #f9fafb;
  --completion-text-light: #d1d5db;
  --completion-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
  --completion-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
}

@media (prefers-color-scheme: dark) {
  :root {
    --completion-primary: #34d399;
    --completion-primary-hover: #10b981;
    --completion-secondary: #9ca3af;
    --completion-bg: #1f2937;
    --completion-border: #374151;
    --completion-text: #f9fafb;
    --completion-text-light: #d1d5db;
    --completion-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 1px 2px 0 rgba(0, 0, 0, 0.2);
    --completion-shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.2);
  }
}

/* ===============================
   PRESENTATION-NAV 통합 스타일
   =============================== */

/* presentation-nav에 통합된 완료 버튼 */
.presentation-nav .lecture-complete-btn {
  background: transparent;
  border: 2px solid var(--completion-border);
  color: var(--completion-primary);
  transition: var(--completion-transition);
  position: relative;
}

.presentation-nav .lecture-complete-btn:hover {
  background: var(--completion-primary);
  border-color: var(--completion-primary);
  color: white;
  transform: translateY(-1px);
}

.presentation-nav .lecture-complete-btn.completed {
  background: var(--completion-primary);
  border-color: var(--completion-primary);
  color: white;
}

.presentation-nav .lecture-complete-btn.completed:hover {
  background: var(--completion-primary-hover);
  border-color: var(--completion-primary-hover);
}

.presentation-nav .lecture-complete-btn.loading {
  pointer-events: none;
  opacity: 0.7;
}

.presentation-nav .lecture-complete-btn.loading .nav-icon {
  animation: spin 1s linear infinite;
}

/* presentation-nav 내 진행률 정보 */
.lecture-progress-info {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 2px;
  margin-left: 12px;
  min-width: 85px;
  text-align: right;
}

.lecture-progress-info .progress-text {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  font-size: 11px;
  line-height: 1.3;
  text-align: right;
}

.lecture-progress-info .progress-percentage {
  font-weight: 700;
  color: var(--completion-primary);
  font-size: 12px;
  line-height: 1.2;
}

.lecture-progress-info .progress-details {
  color: var(--completion-text-light);
  font-size: 10px;
  margin-top: 1px;
}

.lecture-progress-info .progress-bar {
  width: 70px;
  height: 3px !important;
  min-height: 3px;
  background: var(--completion-border);
  border-radius: 2px;
  overflow: hidden;
  margin-left: auto;
  flex-shrink: 0;
  display: block;
}

.lecture-progress-info .progress-fill {
  height: 3px !important;
  min-height: 3px;
  background: linear-gradient(90deg, var(--completion-primary), var(--completion-primary-hover));
  border-radius: 2px;
  transition: width 0.5s ease-out;
  display: block;
  flex-shrink: 0;
}

/* ===============================
   독립 모드 (폴백) 스타일
   =============================== */

/* 독립 완료 컨테이너 */
.lecture-completion-standalone {
  position: fixed;
  bottom: 120px; /* 실감미디어 네비게이션 위로 올려서 겹치지 않도록 */
  right: 24px;
  z-index: 9998;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 8px;
  max-width: 220px;
  min-width: 160px;
  padding: 16px;
  background: var(--completion-bg);
  border: 1px solid var(--completion-border);
  border-radius: var(--completion-radius-lg);
  box-shadow: var(--completion-shadow-lg);
  backdrop-filter: blur(10px);
  transition: all 0.3s ease-in-out, bottom 0.5s ease-out;
  animation: slideInFromBottom 0.4s ease-out;
}

/* 완료 버튼 (독립 모드) */
.lecture-complete-btn.standalone {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  background: var(--completion-bg);
  border: 2px solid var(--completion-border);
  border-radius: var(--completion-radius);
  color: var(--completion-text);
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: var(--completion-transition);
  box-shadow: var(--completion-shadow);
  user-select: none;
  position: relative;
  overflow: hidden;
  width: 100%;
}

.lecture-complete-btn.standalone:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 16px -4px rgba(16, 185, 129, 0.3), 0 4px 8px -2px rgba(0, 0, 0, 0.1);
  border-color: var(--completion-primary);
  background: var(--completion-bg);
}

.lecture-complete-btn.standalone:active {
  transform: translateY(0);
}

.lecture-complete-btn.standalone.completed {
  background: linear-gradient(135deg, var(--completion-primary), var(--completion-primary-hover));
  border-color: var(--completion-primary);
  color: white;
  box-shadow: 0 4px 12px -2px rgba(16, 185, 129, 0.4);
}

.lecture-complete-btn.standalone.completed:hover {
  background: linear-gradient(135deg, var(--completion-primary-hover), #047857);
  border-color: var(--completion-primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px -4px rgba(16, 185, 129, 0.5);
}

/* 진행률 표시 (독립 모드) */
.lecture-progress-indicator.standalone {
  background: transparent;
  border: none;
  border-radius: var(--completion-radius);
  padding: 0;
  margin-top: 6px;
}

.lecture-progress-indicator.standalone .progress-text {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  margin-bottom: 4px;
}

.lecture-progress-indicator.standalone .progress-percentage {
  font-weight: 700;
  color: var(--completion-primary);
}

.lecture-progress-indicator.standalone .progress-details {
  color: var(--completion-text-light);
}

.lecture-progress-indicator.standalone .progress-bar {
  width: 100%;
  height: 4px;
  background: var(--completion-border);
  border-radius: 2px;
  overflow: hidden;
}

.lecture-progress-indicator.standalone .progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--completion-primary), var(--completion-primary-hover));
  border-radius: 2px;
  transition: width 0.5s ease-out;
}

/* 통계 표시 (독립 모드) */
.lecture-stats-display.standalone {
  background: transparent;
  border: none;
  border-radius: var(--completion-radius);
  padding: 0;
  margin-top: 6px;
}

.lecture-stats-display.standalone .stats-mini {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
}

.lecture-stats-display.standalone .stat-grade {
  font-weight: 700;
  color: var(--completion-primary);
}

.lecture-stats-display.standalone .stat-streak {
  color: var(--completion-text-light);
}

/* ===============================
   공통 버튼 스타일
   =============================== */

.lecture-complete-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none !important;
}

.lecture-complete-btn .btn-icon {
  width: 16px;
  height: 16px;
  transition: var(--completion-transition);
  font-size: 14px;
}

.lecture-complete-btn.loading .btn-icon {
  animation: spin 1s linear infinite;
}

/* ===============================
   메시지 표시
   =============================== */

.completion-message {
  padding: 8px 12px;
  border-radius: var(--completion-radius);
  font-size: 12px;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 6px;
  animation: slideInUp 0.3s ease-out;
  margin-top: 8px;
}

/* 토스트 스타일 메시지 (presentation-nav 통합 시) */
.completion-message.toast-style {
  position: fixed;
  top: 80px;
  right: 20px;
  z-index: 10000;
  margin-top: 0;
  box-shadow: var(--completion-shadow-lg);
  max-width: 300px;
}

.completion-message.success {
  background: #dcfce7;
  color: #166534;
  border: 1px solid #bbf7d0;
}

.completion-message.error {
  background: #fef2f2;
  color: #991b1b;
  border: 1px solid #fecaca;
}

[data-theme="dark"] .completion-message.success {
  background: rgba(16, 185, 129, 0.1);
  color: #34d399;
  border-color: rgba(52, 211, 153, 0.3);
}

[data-theme="dark"] .completion-message.error {
  background: rgba(239, 68, 68, 0.1);
  color: #f87171;
  border-color: rgba(248, 113, 113, 0.3);
}

.completion-message .message-icon {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}

/* ===============================
   애니메이션
   =============================== */

@keyframes completionPulse {
  0% {
    transform: scale(1);
  }

  50% {
    transform: scale(1.05);
  }

  100% {
    transform: scale(1);
  }
}

@keyframes slideInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes slideInFromBottom {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.95);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.completion-animation {
  animation: completionPulse 0.6s ease-in-out;
}

/* 로딩 상태 */
.lecture-complete-btn.loading {
  pointer-events: none;
}

.lecture-complete-btn.loading::after {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  animation: loading-shimmer 1.5s infinite;
}

@keyframes loading-shimmer {
  100% {
    left: 100%;
  }
}

/* ===============================
   모바일 대응
   =============================== */

@media (max-width: 768px) {

  /* presentation-nav 내 진행률 정보 */
  .lecture-progress-info {
    min-width: 65px;
    margin-left: 8px;
  }

  .lecture-progress-info .progress-text {
    font-size: 10px;
  }

  .lecture-progress-info .progress-percentage {
    font-size: 11px;
  }

  .lecture-progress-info .progress-details {
    font-size: 9px;
  }

  .lecture-progress-info .progress-bar {
    width: 55px;
    height: 3px !important;
    min-height: 3px;
  }

  /* 독립 모드 */
  .lecture-completion-standalone {
    bottom: 100px;
    /* 모바일에서 실감미디어 네비게이션 위로 올려서 겹치지 않도록 */
    right: 16px;
    left: auto;
    max-width: 180px;
    min-width: 140px;
    padding: 12px;
  }

  .lecture-complete-btn.standalone {
    padding: 8px 12px;
    font-size: 11px;
  }

  /* 토스트 메시지 */
  .completion-message.toast-style {
    top: 70px;
    right: 16px;
    left: 16px;
    max-width: none;
  }
}

@media (max-width: 480px) {

  /* presentation-nav 내 진행률 정보 */
  .lecture-progress-info {
    display: none;
    /* 모바일에서는 숨김 */
  }

  /* 독립 모드 */
  .lecture-completion-standalone {
    bottom: 90px;
    /* 작은 모바일에서 실감미디어 네비게이션 위로 올려서 겹치지 않도록 */
    right: 12px;
    left: auto;
    max-width: 160px;
    min-width: 120px;
    padding: 10px;
  }

  .lecture-complete-btn.standalone {
    padding: 6px 10px;
    font-size: 10px;
    gap: 4px;
  }

  .lecture-complete-btn.standalone .btn-icon {
    width: 14px;
    height: 14px;
    font-size: 12px;
  }

  /* 토스트 메시지 */
  .completion-message.toast-style {
    top: 60px;
    font-size: 11px;
    padding: 6px 10px;
  }
}

/* ===============================
   접근성
   =============================== */

/* 포커스 스타일 */
.lecture-complete-btn:focus-visible {
  outline: 2px solid var(--completion-primary);
  outline-offset: 2px;
}

.presentation-nav .lecture-complete-btn:focus-visible {
  outline: 2px solid var(--completion-primary);
  outline-offset: 2px;
}

.lecture-complete-btn.standalone:focus-visible {
  outline: 2px solid var(--completion-primary);
  outline-offset: 2px;
}

/* 접근성 개선 */
@media (prefers-reduced-motion: reduce) {

  .lecture-complete-btn,
  .lecture-complete-btn.standalone,
  .presentation-nav .lecture-complete-btn,
  .progress-fill,
  .completion-message {
    transition: none;
    animation: none;
  }
}

/* 고대비 모드 */
@media (prefers-contrast: high) {

  .lecture-complete-btn,
  .lecture-complete-btn.standalone,
  .presentation-nav .lecture-complete-btn {
    border-width: 3px;
  }

  .completion-message.success {
    border-width: 2px;
  }

  .completion-message.error {
    border-width: 2px;
  }
}

/* ARIA live region */
.completion-announcements {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

/* 기타 유틸리티 */
.progress-info {
  font-size: 11px;
  color: var(--completion-text-light);
  text-align: center;
}