/* css/courses.css — Página de catálogo de cursos */

/* ═══════════════════════════════════════════════ */
/*  LAYOUT — Archive page wrapper                  */
/* ═══════════════════════════════════════════════ */

.course-archive-page {
  max-width: 1400px;
  margin: 0 auto;
  padding: 3rem 1.5rem 2rem;
  font-family: var(--font-sans, 'Exo', sans-serif);
}

.archive-head {
  margin-bottom: 2.5rem;
}

.tutor-row {
  display: flex;
  flex-wrap: wrap;
  margin: 0 -12px;
}
.tutor-row > [class*="tutor-col"] {
  padding: 0 12px;
}

.tutor-gx-xl-5 {
  margin: 0 -20px;
}
.tutor-gx-xl-5 > [class*="tutor-col"] {
  padding: 0 20px;
}

.tutor-col-3 {
  flex: 0 0 25%;
  max-width: 25%;
}
.tutor-col-xl-9 {
  flex: 0 0 75%;
  max-width: 75%;
}
.tutor-col {
  flex: 1 1 0%;
}

/* ═══════════════════════════════════════════════ */
/*  SIDEBAR FILTER                                 */
/* ═══════════════════════════════════════════════ */

.tutor-course-filter-widget {
  background: linear-gradient(160deg, #303030 0%, #262626 100%);
  border: 1px solid rgba(190, 239, 190, 0.16);
  border-radius: 16px;
  padding: 1.5rem;
  position: sticky;
  top: 100px;
}

.tutor-course-filter-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.25rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(190, 239, 190, 0.18);
}
.tutor-course-filter-header h3 {
  color: #f2f8f2;
  font-size: 1.1rem;
  font-weight: 700;
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.tutor-course-filter-header h3::before {
  content: ">";
  color: #98ff98;
  font-family: 'JetBrains Mono', monospace;
}

.tutor-filter-clear-btn {
  background: none;
  border: 1px solid rgba(190, 239, 190, 0.25);
  color: #beefbe;
  font-size: 0.78rem;
  cursor: pointer;
  padding: 5px 10px;
  border-radius: 6px;
  transition: background 0.2s, border-color 0.2s;
}
.tutor-filter-clear-btn:hover {
  background: rgba(190, 239, 190, 0.1);
  border-color: rgba(152, 255, 152, 0.5);
}

.tutor-filter-group {
  margin-bottom: 1.4rem;
}

.tutor-filter-label {
  display: block;
  color: #98ff98;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.74rem;
  font-weight: 600;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.tutor-filter-search-wrap {
  position: relative;
}
.tutor-filter-search-icon {
  position: absolute;
  left: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #7d8a7d;
  font-size: 0.85rem;
  pointer-events: none;
}
.tutor-form-control {
  background: #1f1f1f;
  border: 1px solid rgba(190, 239, 190, 0.2);
  color: #f2f8f2;
  width: 100%;
  padding: 10px 12px 10px 36px;
  border-radius: 8px;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  box-sizing: border-box;
}
.tutor-form-control::placeholder {
  color: #7d8a7d;
}
.tutor-form-control:focus {
  border-color: #98ff98;
  box-shadow: 0 0 0 3px rgba(152, 255, 152, 0.12);
}

.tutor-filter-options {
  display: flex;
  flex-direction: column;
  gap: 8px;
  max-height: 220px;
  overflow-y: auto;
}

.tutor-filter-checkbox {
  display: flex;
  align-items: center;
  gap: 9px;
  cursor: pointer;
  padding: 4px 0;
  border-radius: 6px;
  transition: background 0.2s;
}
.tutor-filter-checkbox:hover {
  background: rgba(190, 239, 190, 0.05);
}

.tutor-filter-checkbox input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 2px solid rgba(190, 239, 190, 0.35);
  border-radius: 4px;
  background: #1f1f1f;
  cursor: pointer;
  position: relative;
  flex-shrink: 0;
  transition: border-color 0.2s, background 0.2s, box-shadow 0.2s;
}
.tutor-filter-checkbox input[type="checkbox"]:checked {
  background: linear-gradient(120deg, #beefbe, #98ff98);
  border-color: #98ff98;
  box-shadow: 0 0 10px rgba(152, 255, 152, 0.3);
}
.tutor-filter-checkbox input[type="checkbox"]:checked::after {
  content: '✓';
  position: absolute;
  left: 2px;
  top: -1px;
  font-size: 13px;
  color: #1d1d1d;
  font-weight: 700;
}

.tutor-filter-checkbox-label {
  color: #c4cec4;
  font-size: 0.9rem;
  transition: color 0.2s;
}
.tutor-filter-checkbox:hover .tutor-filter-checkbox-label {
  color: #f2f8f2;
}

.tutor-form-select {
  width: 100%;
  padding: 10px 12px;
  background: #1f1f1f;
  border: 1px solid rgba(190, 239, 190, 0.2);
  border-radius: 8px;
  color: #f2f8f2;
  font-size: 0.9rem;
  outline: none;
  cursor: pointer;
  box-sizing: border-box;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.tutor-form-select:focus {
  border-color: #98ff98;
  box-shadow: 0 0 0 3px rgba(152, 255, 152, 0.12);
}
.tutor-form-select option {
  background: #1f1f1f;
  color: #f2f8f2;
}

/* ═══════════════════════════════════════════════ */
/*  FILTER BAR (above grid)                        */
/* ═══════════════════════════════════════════════ */

.tutor-course-filter-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1.5rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid rgba(190, 239, 190, 0.14);
}

.tutor-course-count {
  color: #a9b5a9;
  font-size: 0.95rem;
}
.tutor-course-count span {
  color: #98ff98;
  font-family: 'JetBrains Mono', monospace;
  font-weight: 700;
}

.tutor-filter-toggle-btn {
  display: none;
  background: linear-gradient(160deg, #303030, #262626);
  border: 1px solid rgba(190, 239, 190, 0.25);
  color: #beefbe;
  padding: 8px 16px;
  border-radius: 8px;
  cursor: pointer;
  font-size: 0.9rem;
  gap: 6px;
  align-items: center;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.tutor-filter-toggle-btn:hover {
  border-color: #98ff98;
  box-shadow: 0 0 14px rgba(152, 255, 152, 0.18);
}
.tutor-filter-toggle-btn i {
  margin-right: 6px;
}

/* ═══════════════════════════════════════════════ */
/*  COURSE GRID                                    */
/* ═══════════════════════════════════════════════ */

.tutor-course-list {
  display: grid;
  gap: 24px;
}

.tutor-grid-3 {
  grid-template-columns: repeat(3, 1fr);
}

/* ═══════════════════════════════════════════════ */
/*  COURSE CARD                                    */
/* ═══════════════════════════════════════════════ */

.tutor-card.tutor-course-card {
  background: linear-gradient(160deg, #383838 0%, #2a2a2a 100%);
  border: 1px solid rgba(190, 239, 190, 0.16);
  border-radius: 16px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform 0.35s cubic-bezier(0.22, 1, 0.36, 1),
    box-shadow 0.35s ease, border-color 0.35s ease;
  position: relative;
}

.tutor-card.tutor-course-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 20px 44px rgba(0, 0, 0, 0.45), 0 0 26px rgba(152, 255, 152, 0.1);
  border-color: rgba(152, 255, 152, 0.45);
}

/* ── Thumbnail ── */
.tutor-course-thumbnail {
  position: relative;
  overflow: hidden;
}

.tutor-course-thumbnail a {
  display: block;
}

.tutor-ratio-16x9 {
  position: relative;
  width: 100%;
  padding-top: 56.25%;
  overflow: hidden;
  color: #98ff98;
  text-align: center;
}

/* Fundido inferior de la imagen hacia la tarjeta */
.tutor-ratio-16x9::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(39, 39, 39, 0) 70%, rgba(39, 39, 39, 0.85) 100%);
  pointer-events: none;
}

.tutor-ratio-16x9 img,
.tutor-ratio-16x9 .tutor-card-placeholder {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.tutor-card-image-top {
  transition: transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

.tutor-card.tutor-course-card:hover .tutor-card-image-top {
  transform: scale(1.06);
}

.tutor-card-placeholder {
  display: flex;
  align-items: center;
  justify-content: center;
  background: #1f1f1f;
  color: rgba(152, 255, 152, 0.4);
  font-size: 3rem;
}

/* ── Bookmark / Wishlist ── */
.tutor-course-bookmark {
  position: absolute;
  top: 12px;
  right: 12px;
  z-index: 2;
}

.tutor-iconic-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: rgba(0, 0, 0, 0.6);
  border: 1px solid rgba(190, 239, 190, 0.2);
  color: #fff;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, box-shadow 0.2s;
  -webkit-backdrop-filter: blur(4px);
  backdrop-filter: blur(4px);
}
.tutor-iconic-btn:hover {
  background: rgba(152, 255, 152, 0.2);
  color: #98ff98;
  border-color: #98ff98;
  box-shadow: 0 0 12px rgba(152, 255, 152, 0.3);
}

.wishlist-form {
  margin: 0;
}

/* ── Card Body ── */
.tutor-card-body {
  padding: 16px 20px;
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

/* ── Ratings ── */
.tutor-course-ratings {
  margin-bottom: 10px;
}
.tutor-ratings {
  display: flex;
  align-items: center;
  gap: 6px;
}
.tutor-ratings-stars {
  display: flex;
  gap: 2px;
}
.tutor-star-full {
  color: #ffd700;
  font-size: 0.85rem;
  text-shadow: 0 0 8px rgba(255, 215, 0, 0.3);
}
.tutor-star-empty {
  color: #555;
  font-size: 0.85rem;
}
.tutor-ratings-average {
  color: #f2f8f2;
  font-size: 0.9rem;
  font-weight: 600;
}
.tutor-ratings-count {
  color: #7d8a7d;
  font-size: 0.82rem;
}

/* ── Title ── */
.tutor-course-name {
  color: #f2f8f2;
  font-size: 1.08rem;
  font-weight: 700;
  margin: 0 0 12px;
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.tutor-course-name a {
  color: inherit;
  text-decoration: none;
  transition: color 0.2s;
}
.tutor-course-name a:hover {
  color: #98ff98;
}

/* ── Meta ── */
.tutor-meta {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}

.tutor-meta-top {
  margin-bottom: 12px;
}

.tutor-meta-item {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #a9b5a9;
  font-size: 0.85rem;
}

.tutor-meta-icon {
  font-size: 0.8rem;
  color: rgba(152, 255, 152, 0.55);
}

.tutor-meta-bottom {
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid rgba(190, 239, 190, 0.1);
}

.tutor-meta-author {
  color: #a9b5a9;
  font-size: 0.85rem;
}
.tutor-meta-author strong {
  color: #beefbe;
}

.tutor-meta-category {
  color: #7d8a7d;
}
.tutor-meta-category a {
  color: #beefbe;
  text-decoration: none;
}
.tutor-meta-category a:hover {
  text-decoration: underline;
}

/* ── Footer / Enroll Button ── */
.tutor-card-footer {
  padding: 12px 20px 16px;
}

.tutor-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  text-decoration: none;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.3s ease;
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.tutor-btn-md {
  padding: 10px 20px;
  font-size: 0.88rem;
}

.tutor-btn-block {
  display: flex;
  width: 100%;
}

.tutor-btn-outline-primary {
  background: transparent;
  border: 1.5px solid rgba(190, 239, 190, 0.5);
  color: #beefbe;
}
.tutor-btn-outline-primary:hover {
  background: linear-gradient(120deg, #beefbe, #98ff98);
  border-color: #98ff98;
  color: #1d1d1d;
  box-shadow: 0 6px 18px rgba(152, 255, 152, 0.25);
}

/* Solid variant — used for "Acceder" when the user is already enrolled */
.tutor-btn-solid-primary {
  gap: 8px;
  background: linear-gradient(120deg, #beefbe, #98ff98);
  border: 1.5px solid #98ff98;
  color: #1d1d1d;
}
.tutor-btn-solid-primary:hover {
  box-shadow: 0 6px 18px rgba(152, 255, 152, 0.3);
  transform: translateY(-1px);
}
.tutor-btn-solid-primary i {
  font-size: 0.85em;
}

/* ── Empty state ── */
.tutor-courses-empty {
  grid-column: 1 / -1;
  text-align: center;
  padding: 4rem 2rem;
  color: #7d8a7d;
  background: linear-gradient(160deg, #2d2d2d, #252525);
  border: 1px dashed rgba(190, 239, 190, 0.2);
  border-radius: 16px;
}
.tutor-courses-empty i {
  font-size: 3rem;
  margin-bottom: 1rem;
  display: block;
  color: rgba(152, 255, 152, 0.35);
}

.tutor-filter-close-btn {
  display: none;
}

/* ═══════════════════════════════════════════════ */
/*  RESPONSIVE                                     */
/* ═══════════════════════════════════════════════ */

@media (max-width: 1100px) {
  .tutor-grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 991px) {
  .tutor-course-filter-container {
    position: fixed;
    top: 0;
    left: 0;
    width: 320px;
    max-width: 85vw;
    height: 100vh;
    height: 100dvh;
    z-index: 3000;
    background: #1e1e1e;
    border-right: 1px solid rgba(190, 239, 190, 0.18);
    flex: 0 0 auto;
    padding: 1rem;
    overflow-y: auto;
    transform: translateX(-110%);
    transition: transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  }
  .tutor-course-filter-container.open {
    transform: translateX(0);
    box-shadow: 30px 0 60px rgba(0, 0, 0, 0.5);
  }
  .tutor-course-filter-widget {
    position: static;
    border: none;
    background: transparent;
  }
  .tutor-filter-close-btn {
    display: block;
    position: absolute;
    top: 20px;
    right: 20px;
    background: none;
    border: none;
    font-size: 2rem;
    color: #beefbe;
    cursor: pointer;
    z-index: 1001;
  }
  .tutor-col-xl-9 {
    flex: 0 0 100%;
    max-width: 100%;
  }
  .tutor-filter-toggle-btn {
    display: inline-flex;
  }
}

@media (max-width: 640px) {
  .tutor-grid-3 {
    grid-template-columns: 1fr;
  }
  .course-archive-page {
    padding: 2rem 1rem 1rem;
  }
  .archive-head {
    margin-bottom: 1.5rem;
  }
}