/*
==========================================================
  COURSE DETAIL PAGE — courses-detail.css
  Konsisten dengan courses-redesign.css (design tokens kp-*)
==========================================================
*/

/* ══════════════════════════════════════════════════════
   HERO BANNER — Featured Image Full Width
══════════════════════════════════════════════════════ */
.kpd-hero {
  position: relative;
  width: 100%;
  aspect-ratio: 21/7;
  overflow: hidden;
  background: var(--c-primary);
}

@media (max-width: 991px) {
  .kpd-hero { aspect-ratio: 16/7; }
}
@media (max-width: 575px) {
  .kpd-hero { aspect-ratio: 4/3; }
}

.kpd-hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.kpd-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to right,
    rgba(0,20,17,.75) 0%,
    rgba(0,20,17,.35) 60%,
    transparent 100%
  );
}

.kpd-hero-play-wrap {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .3s ease;
}

.kpd-hero:hover .kpd-hero-play-wrap {
  opacity: 1;
}

.kpd-hero-play-btn {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255,255,255,.18);
  backdrop-filter: blur(8px);
  border: 2px solid rgba(255,255,255,.6);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 28px;
  text-decoration: none;
  transition: all .3s ease;
  cursor: pointer;
}

.kpd-hero-play-btn:hover {
  background: var(--c-accent);
  border-color: var(--c-accent);
  color: var(--c-text);
  transform: scale(1.08);
}

/* ══════════════════════════════════════════════════════
   LAYOUT
══════════════════════════════════════════════════════ */
.kpd-section {
  background: var(--c-bg);
  padding: 48px 0 80px;
}

/* Make "kursus lainnya" attach tighter to marquee section */
.kpd-section.kpd-section--with-popular {
  padding-bottom: 24px;
}

.kpd-section.kpd-section--with-popular + .kpd-popular-section {
  margin-top: 0;
}

.kpd-left { /* col-lg-8 */ }

.kpd-sticky-col {
  position: sticky;
  top: 100px;
}

/* ══════════════════════════════════════════════════════
   META CHIPS (kategori, rating, countdown)
══════════════════════════════════════════════════════ */
.kpd-meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  margin-bottom: 14px;
}

.kpd-chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .05em;
  text-transform: uppercase;
}

.kpd-chip-cat {
  background: var(--c-tag-bg);
  color: var(--c-primary);
}

.kpd-chip-rating {
  background: #FFF7ED;
  color: #92400E;
}

.kpd-chip-rating i { color: var(--c-accent); }

.kpd-chip-countdown {
  background: #EFF6FF;
  color: #1E40AF;
}

/* Course Title */
.kpd-title {
  font-family: var(--font-body);
  font-size: clamp(22px, 3vw, 30px);
  font-weight: 800;
  color: var(--c-text);
  line-height: 1.35;
  margin-bottom: 24px;
}

/* ══════════════════════════════════════════════════════
   TAB NAV
══════════════════════════════════════════════════════ */
.kpd-tab-nav {
  display: flex;
  gap: 0;
  border-bottom: 2px solid var(--c-border);
  margin-bottom: 32px;
  overflow-x: auto;
  scrollbar-width: none;
}

.kpd-tab-nav::-webkit-scrollbar { display: none; }

.kpd-tab-nav .nav-link {
  padding: 12px 20px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  color: var(--c-text-muted);
  border: none;
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  border-radius: 0;
  white-space: nowrap;
  transition: var(--transition);
  background: transparent;
}

.kpd-tab-nav .nav-link:hover {
  color: var(--c-primary);
}

.kpd-tab-nav .nav-link.active {
  color: var(--c-primary);
  border-bottom-color: var(--c-primary);
}

/* ══════════════════════════════════════════════════════
   TAB CONTENT — Course Info
══════════════════════════════════════════════════════ */
.kpd-tab-pane {
  animation: kp-fadeUp .3s ease both;
}

.kpd-section-title {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 16px;
  margin-top: 32px;
  padding-top: 32px;
  border-top: 1px solid var(--c-border);
}

.kpd-section-title:first-child {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

/* Objectives grid */
.kpd-objectives-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px 24px;
  background: var(--c-tag-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 8px;
}

@media (max-width: 575px) {
  .kpd-objectives-grid { grid-template-columns: 1fr; }
}

.kpd-objective-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--c-text);
  line-height: 1.5;
}

.kpd-objective-item i {
  color: var(--c-primary);
  font-size: 14px;
  margin-top: 2px;
  flex-shrink: 0;
}

/* ══════════════════════════════════════════════════════
   CURRICULUM ACCORDION
══════════════════════════════════════════════════════ */
.kpd-accordion .accordion-item {
  border: 1px solid var(--c-border);
  border-radius: var(--radius-sm) !important;
  margin-bottom: 8px;
  overflow: hidden;
}

.kpd-accordion .accordion-button {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
  background: var(--c-bg-card);
  padding: 14px 18px;
  box-shadow: none;
}

.kpd-accordion .accordion-button:not(.collapsed) {
  background: var(--c-tag-bg);
  color: var(--c-primary);
}

.kpd-accordion .accordion-button::after {
  filter: none;
}

.kpd-accordion .accordion-button:not(.collapsed)::after {
  filter: hue-rotate(130deg) saturate(3);
}

.kpd-accordion .accordion-body {
  padding: 0;
}

/* Lesson list inside accordion */
.kpd-lesson-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.kpd-lesson-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 11px 18px;
  border-top: 1px solid var(--c-border);
  font-family: var(--font-body);
  font-size: 13.5px;
  color: var(--c-text);
  gap: 12px;
}

.kpd-lesson-item:hover { background: var(--c-bg); }

.kpd-lesson-left {
  display: flex;
  align-items: center;
  gap: 10px;
  flex: 1;
  min-width: 0;
}

.kpd-lesson-left i {
  color: var(--c-text-muted);
  font-size: 14px;
  flex-shrink: 0;
}

.kpd-lesson-title {
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.kpd-lesson-right {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
  font-size: 13px;
  color: var(--c-text-muted);
}

.kpd-preview-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  color: var(--c-primary);
  font-weight: 600;
  font-size: 13px;
  cursor: pointer;
  text-decoration: none;
  transition: var(--transition);
}

.kpd-preview-btn:hover { color: var(--c-primary-lt); }

.kpd-badge-preview {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: #DBEAFE;
  color: #1E40AF;
  font-size: 11px;
  font-weight: 700;
}

.kpd-badge-quiz {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: #FEF3C7;
  color: #92400E;
  font-size: 11px;
  font-weight: 700;
}

.kpd-badge-task {
  display: inline-block;
  padding: 2px 8px;
  border-radius: var(--radius-pill);
  background: #F3E8FF;
  color: #6D28D9;
  font-size: 11px;
  font-weight: 700;
}

.kpd-lock-icon { color: #CBD5E1; font-size: 13px; }

/* ══════════════════════════════════════════════════════
   INSTRUCTOR CARD
══════════════════════════════════════════════════════ */
.kpd-instructor-card {
  display: flex;
  gap: 20px;
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 24px;
  align-items: flex-start;
}

@media (max-width: 575px) {
  .kpd-instructor-card { flex-direction: column; }
}

.kpd-instructor-avatar {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid var(--c-border);
  flex-shrink: 0;
}

.kpd-instructor-name {
  font-family: var(--font-body);
  font-size: 18px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 4px;
}

.kpd-instructor-spec {
  font-size: 13px;
  color: var(--c-primary);
  font-weight: 600;
  margin-bottom: 10px;
}

.kpd-instructor-bio {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
}

.kpd-social-links {
  display: flex;
  gap: 8px;
}

.kpd-social-link {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.kpd-social-link:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* ══════════════════════════════════════════════════════
   REVIEWS
══════════════════════════════════════════════════════ */
.kpd-rating-summary {
  display: flex;
  gap: 24px;
  align-items: center;
  background: var(--c-tag-bg);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 24px;
  margin-bottom: 32px;
}

@media (max-width: 575px) {
  .kpd-rating-summary { flex-direction: column; align-items: flex-start; }
}

.kpd-rating-big {
  text-align: center;
  flex-shrink: 0;
  min-width: 80px;
}

.kpd-rating-big .score {
  font-family: var(--font-display);
  font-size: 52px;
  line-height: 1;
  color: var(--c-text);
}

.kpd-rating-big .stars {
  display: flex;
  gap: 2px;
  justify-content: center;
  margin-top: 4px;
  font-size: 14px;
  color: var(--c-accent);
}

.kpd-rating-big .label {
  font-size: 12px;
  color: var(--c-text-muted);
  margin-top: 4px;
  font-weight: 600;
}

.kpd-rating-bars { flex: 1; display: flex; flex-direction: column; gap: 6px; }

.kpd-rating-bar-row {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  font-weight: 600;
  color: var(--c-text-muted);
}

.kpd-rating-bar-track {
  flex: 1;
  height: 6px;
  background: var(--c-border);
  border-radius: var(--radius-pill);
  overflow: hidden;
}

.kpd-rating-bar-fill {
  height: 100%;
  background: var(--c-accent);
  border-radius: var(--radius-pill);
  transition: width .6s ease;
}

.kpd-rating-bar-count {
  min-width: 28px;
  text-align: right;
}

/* Review cards */
.kpd-review-card {
  display: flex;
  gap: 14px;
  padding: 20px 0;
  border-bottom: 1px solid var(--c-border);
}

.kpd-review-card:last-child { border-bottom: none; }

.kpd-review-avatar {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.kpd-review-author {
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 700;
  color: var(--c-text);
}

.kpd-review-date {
  font-size: 12px;
  color: var(--c-text-muted);
  margin-left: 8px;
}

.kpd-review-stars {
  display: flex;
  gap: 2px;
  font-size: 12px;
  color: var(--c-accent);
  margin: 4px 0 8px;
}

.kpd-review-stars i.empty { color: var(--c-border); }

.kpd-review-text {
  font-size: 14px;
  color: var(--c-text-muted);
  line-height: 1.65;
}

/* Instructor reply */
.kpd-instructor-reply {
  margin-top: 12px;
  padding: 12px 16px;
  background: var(--c-tag-bg);
  border-left: 3px solid var(--c-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
}

.kpd-instructor-reply .reply-header {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 700;
  color: var(--c-primary);
}

.kpd-instructor-reply .reply-header span {
  color: var(--c-text-muted);
  font-weight: 400;
  font-size: 12px;
}

.kpd-instructor-reply .reply-text {
  font-size: 13px;
  color: var(--c-text-muted);
  line-height: 1.6;
}

/* Review form */
.kpd-review-form {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  padding: 28px;
  margin-top: 32px;
}

.kpd-review-form h4 {
  font-family: var(--font-body);
  font-size: 16px;
  font-weight: 800;
  color: var(--c-text);
  margin-bottom: 20px;
}

.kpd-star-input {
  display: flex;
  gap: 4px;
  font-size: 28px;
  cursor: pointer;
  margin-bottom: 4px;
}

.kpd-star-input .rating-star {
  color: var(--c-border);
  transition: color .15s ease;
}

.kpd-star-input .rating-star:hover,
.kpd-star-input .rating-star.selected {
  color: var(--c-accent);
}

.kpd-form-control {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  color: var(--c-text);
  background: var(--c-bg);
  transition: var(--transition);
  outline: none;
  resize: vertical;
}

.kpd-form-control:focus {
  border-color: var(--c-primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0,79,68,.07);
}

/* ══════════════════════════════════════════════════════
   RIGHT SIDEBAR — STICKY ENROLLMENT CARD
══════════════════════════════════════════════════════ */
.kpd-enroll-card {
  background: var(--c-bg-card);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}

.kpd-enroll-price-bar {
  position: relative;
  padding: 20px 24px 16px;
  border-bottom: 1px solid var(--c-border);
}

.kpd-price-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-text-muted);
  margin-bottom: 6px;
}

.kpd-discount-chip {
  position: absolute;
  top: 16px;
  right: 20px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 999px;
  background: linear-gradient(135deg, #ff8a00 0%, #ffb347 100%);
  color: #fff;
  box-shadow: 0 8px 18px rgba(255, 138, 0, 0.25);
  font-size: 10px;
  font-weight: 800;
  line-height: 1;
  text-transform: uppercase;
  letter-spacing: .04em;
  white-space: nowrap;
}

.kpd-discount-chip i {
  font-size: 10px;
}

.kpd-price-value {
  font-family: var(--font-body);
  font-size: 28px;
  font-weight: 900;
  color: var(--c-primary);
  line-height: 1;
}

.kpd-price-value.is-free {
  color: #16a34a;
}

.kpd-price-value.has-discount {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 6px;
}

.kpd-price-value.has-discount .kpd-price-strike {
  font-size: 16px;
  font-weight: 600;
  color: var(--c-text-muted, #94a3b8);
  line-height: 1.2;
}

.kpd-price-value.has-discount .kpd-price-strike del {
  text-decoration: line-through;
}

.kpd-price-value.has-discount .kpd-price-current {
  font-size: 28px;
  font-weight: 900;
  color: var(--c-primary);
  line-height: 1;
}

@media (max-width: 575px) {
  .kpd-discount-chip {
    position: static;
    margin-bottom: 8px;
  }
}

/* Course stats list */
.kpd-stats-list {
  list-style: none;
  padding: 16px 24px;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.kpd-stats-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 9px 0;
  border-bottom: 1px solid var(--c-border);
  font-family: var(--font-body);
  font-size: 13.5px;
}

.kpd-stats-item:last-child { border-bottom: none; }

.kpd-stats-label {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--c-text-muted);
  font-weight: 500;
}

.kpd-stats-label i {
  width: 16px;
  text-align: center;
  color: var(--c-primary);
  font-size: 13px;
}

.kpd-stats-value {
  font-weight: 700;
  color: var(--c-text);
  text-align: right;
}

/* CTA area */
.kpd-cta-area {
  padding: 16px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.kpd-btn-primary {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  width: 100%;
  padding: 14px;
  border-radius: var(--radius-pill);
  background: var(--c-primary);
  color: #fff;
  font-family: var(--font-body);
  font-size: 15px;
  font-weight: 700;
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: var(--transition);
}

.kpd-btn-primary:hover {
  background: var(--c-primary-lt);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(0,79,68,.25);
}

.kpd-btn-primary.enrolled {
  background: #16a34a;
}

.kpd-btn-primary.enrolled:hover {
  background: #15803d;
}

/* Share row */
.kpd-share-row {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 0 24px 20px;
  font-family: var(--font-body);
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: .06em;
  color: var(--c-text-muted);
}

.kpd-share-link {
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--c-bg);
  border: 1px solid var(--c-border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 12px;
  color: var(--c-text-muted);
  text-decoration: none;
  transition: var(--transition);
}

.kpd-share-link:hover {
  background: var(--c-primary);
  border-color: var(--c-primary);
  color: #fff;
}

/* ══════════════════════════════════════════════════════
   LOGIN MODAL FORM
══════════════════════════════════════════════════════ */
.kpd-modal-form .form-control {
  border: 1.5px solid var(--c-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-body);
  font-size: 14px;
  padding: 10px 14px;
}

.kpd-modal-form .form-control:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(0,79,68,.07);
}

/* ══════════════════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════════════════ */
@media (max-width: 991px) {
  .kpd-sticky-col { position: static; margin-top: 32px; }
  .kpd-enroll-card { max-width: 480px; }
}