/* =========================
   TOPIC HERO
   ========================= */
.topic-hero{
  padding: 56px 0 34px;
  background:#f6f7f9;
}

.topic-title{
  font-size: 56px;
  font-weight: 900;
  letter-spacing: .2px;
  margin: 0 0 18px;
}

.topic-desc{
  max-width: 900px;
  color: var(--text);
  font-size: 16px;
  line-height: 1.5;
  margin: 0 0 22px;
}

.topic-stats{
  display:flex;
  align-items:flex-start;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 22px;
}

.topic-stat-label{
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.topic-stat-value{
  font-weight: 800;
  font-size: 16px;
  display:flex;
  align-items:center;
  gap: 8px;
}

.topic-stat-divider{
  width:1px;
  height:40px;
  background: var(--border);
  align-self:center;
}

.topic-info{
  color: var(--muted);
  font-size: 14px;
}

.topic-star{
  color:#b4690e;
  font-size: 14px;
}

.topic-related{
  display:flex;
  align-items:center;
  gap: 14px;
  flex-wrap: wrap;
}

.topic-related-label{
  font-weight:700;
  color: var(--text);
}

.topic-related-chips{
  display:flex;
  gap: 10px;
  flex-wrap: wrap;
}

.topic-chip{
  display:inline-flex;
  align-items:center;
  padding: 8px 14px;
  border:1px solid #bdbfc2;
  border-radius: 10px;
  font-weight: 700;
  font-size: 14px;
  color: var(--text);
  text-decoration: none;
  background:#fff;
}

.topic-chip:hover{
  text-decoration:none;
  background:#f7f9fa;
}

/* =========================
   STARTER SLIDER
   ========================= */
.starter{
  padding: 26px 0 34px;
  background:#fff;
}

.starter-title{
  font-size: 24px;
  font-weight: 900;
  margin: 0 0 6px;
}

.starter-sub{
  color: var(--muted);
  margin-bottom: 14px;
}
/* =========================
   STARTER GRID (4 cards)
   ========================= */
.starter-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.starter-card{
  width: auto;              /* bỏ width cố định của slider */
}

@media (max-width: 991.98px){
  .starter-grid{
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 575.98px){
  .starter-grid{
    grid-template-columns: 1fr;
  }
}

.starter-card{
  flex: 0 0 auto;
  background:#fff;
  text-decoration: none;
  color: var(--colorText);;
}

.starter-thumb{
  width: 100%;
  background:#eee;
  overflow:hidden;
}

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

.starter-body{
  padding: 10px 0 0;
}

.starter-card-title{
  display:block;
  font-weight:900;
  color: var(--text);
  text-decoration:none;
  line-height:1.25;
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
  min-height: 1.5em; 
}

.starter-card-title:hover{
  text-decoration: underline;
}

.starter-card-author{
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
}

.starter-card-rating{
  display:flex;
  align-items:center;
  gap: 6px;
  font-size: 13px;
  margin-bottom: 6px;
}

.starter-score{
  font-weight:800;
  color:#b4690e;
}

.starter-stars{
  color:#b4690e;
}

.starter-count{
  color: var(--muted);
}

.starter-card-price{
  font-weight:900;
  margin-bottom: 8px;
}

.starter-badge{
  display:inline-flex;
  align-items:center;
  padding: 4px 10px;
  border-radius: 4px;
  background:#d1f0f6;
  color:#1f5e6b;
  font-weight:800;
  font-size: 12px;
}


/* =========================
   ALL COURSES SECTION
   ========================= */
.all-courses{
  padding: 26px 0 60px;
  background:#fff;
}

.all-title{
  font-size: 22px;
  font-weight: 900;
  margin: 0 0 10px;
}

.all-desc{
  color: var(--muted);
  max-width: 980px;
  margin: 0 0 18px;
  line-height: 1.6;
}

.all-banner{
  display:flex;
  align-items:center;
  gap: 12px;
  border:1px solid #c9d0d6;
  border-radius: 12px;
  padding: 16px 18px;
  margin: 0 0 18px;
}

.all-banner-icon{
  font-size:25px;
  color: var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
}

.all-banner-text{
  font-weight:700;
  color: var(--text);
}

.all-topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 14px;
  margin-bottom: 16px;
}

.all-filter-btn{
  display:inline-flex;
  align-items:center;
  gap: 10px;
  border:1px solid #c9d0d6;
  background:#fff;
  padding: 12px 18px;
  border-radius: 10px;
  font-weight: 800;
}

.all-sort{
  display:flex;
  align-items:flex-start;
  gap: 12px;
  border:1px solid #c9d0d6;
  padding: 10px 12px;
  border-radius: 10px;
  min-width: 240px;
}

.all-sort-label{
  font-size: 12px;
  color: var(--muted);
  margin-top: 2px;
  min-width: 48px;
}

.all-sort-select{
  border:0;
  outline:0;
  font-weight: 800;
  background:transparent;
  width: 100%;
}

.all-results{
  margin-left:auto;
  font-weight: 800;
  color: var(--muted);
}

.all-grid{
  display:grid;
  grid-template-columns: 320px 1fr;
  gap: 24px;
  align-items:start;
}

.filters{
  border-top:1px solid var(--border);
  padding-top: 10px;
}

.filter-block{
  padding: 12px 0;
  border-bottom:1px solid var(--border);
}

.filter-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 10px 0 8px;
}

.filter-title{
  font-weight: 900;
}

.filter-row{
  display:flex;
  align-items:center;
  gap: 10px;
  padding: 8px 0;
  cursor:pointer;
  user-select:none;
}

.filter-row input{
  transform: scale(1.05);
}

.filter-stars{
  color:#b4690e;
  display:inline-flex;
  gap: 2px;
}

.filter-text{
  font-weight: 700;
  color: var(--text);
}

.filter-count{
  margin-left:auto;
  color: var(--muted);
  font-weight: 700;
}

.filter-more{
  display:inline-flex;
  align-items:center;
  gap: 6px;
  margin-top: 6px;
  color: var(--brand);
  font-weight: 900;
  text-decoration:none;
}

.filter-more:hover{
  text-decoration: underline;
}

.results-list{
  border-top:1px solid var(--border);
  padding-top: 14px;
}

.course-row{
  display:grid;
  grid-template-columns: 280px 1fr 140px;
  gap: 18px;
  align-items:start;
  padding: 10px 0;
  text-decoration: none;
  color:var(--colorText);
}
.course-row:hover{
  color:var(--colorText);
}
.course-row:hover .course-img:after{
  opacity: 0.1;
}

.course-img{
  width:100%;
  height: 160px;
  overflow:hidden;
  background:#f7f9fa;
  position: relative;
}
.course-img:after{
  content: ""; 
  position: absolute;
  top:0;
  left:0;
  width:100%;
  height: 100%;
  background:black;
  opacity: 0.1;
  z-index:10;
  opacity: 0;
  transition: opacity 0.1s ease;
}

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

.course-mid{
  min-width: 0;
}

.course-name{
  display:block;
  font-weight: 900;
  color: var(--text);
  text-decoration:none;
  margin-bottom: 6px;
  line-height: 1.25;
  font-size:18px;
}


.course-sub{
  color: var(--muted);
  margin-bottom: 6px;
  font-size: 14px;
  line-height: 1.45;
}

.course-author{
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 6px;
}

.course-meta{
  align-items:center;
  margin-bottom: 6px;
  font-size: 13px;
}

.course-rating{
  font-weight: 900;
  color:#b4690e;
}

.course-stars{
  color:#b4690e;
  display:inline-flex;
  gap: 2px;
}

.course-count{
  color: var(--muted);
  font-weight: 700;
}

.course-foot{
  display:flex;
  align-items:center;
  gap: 8px;
  color: var(--muted);
  font-size: 13px;
  margin-bottom: 8px;
  flex-wrap: wrap;
}

.course-pick{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  background:#5624d0;
  color:#fff;
  font-weight: 900;
  font-size: 12px;
  border-radius: 6px;
  padding: 6px 10px;
}

.course-price{
  text-align:right;
  font-weight: 900;
  white-space: nowrap;
  display:flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 4px;
  justify-self: end;
  white-space: nowrap;
}

/* Giá hiện tại */
.price-current{
  font-size: 1rem;
  font-weight: 800;
  color:#1c1d1f;
}

/* Giá cũ */
.price-old{
  font-size: .85rem;
  color:#6a6f73;
  text-decoration: line-through;
  font-weight: normal;
}

.course-sep{
  border-color: var(--border);
  opacity: 1;
  margin: 12px 0;
}

/* =========================
   RESPONSIVE
   ========================= */
@media (max-width: 991.98px){
  .topic-title{
    font-size: 38px;
  }

  .topic-stat-divider{
    display:none;
  }

  .starter-next{
    display:none;
  }

  .all-grid{
    grid-template-columns: 1fr !important;
  }
  
  .filters{
    display:none;
  }

  .course-row{
    grid-template-columns: 160px 1fr;
  }

  .course-price{
    grid-column: 2 / 3;
    text-align:left;
    margin-top: 6px;
  }

  .course-img{
    height: 110px;
  }

  .all-topbar{
    flex-wrap: wrap;
  }

  .all-results{
    margin-left: 0;
  }
  .course-sub{
      display: -webkit-box;
      -webkit-box-orient: vertical;
      -webkit-line-clamp: 3; /* số dòng */
      overflow: hidden;
  }
}


/* =========================
   TOPIC PAGINATION (results-list)
========================= */
.topic-pagination{
  padding: 40px 0 40px;
}
.tp-wrap{
  display:flex;
  align-items:center;
  justify-content:center;
  gap: 18px;
}
.tp-btn{
  width:44px;
  height:44px;
  border-radius:999px;
  border:1px solid rgba(86,36,208,.45);
  background: transparent;
  display:flex;
  align-items:center;
  justify-content:center;
  color: var(--brand);
}
.tp-btn:hover{
  background: rgba(86,36,208,.06);
}
.tp-pages{
  display:flex;
  align-items:center;
  gap: 18px;
}
.tp-page{
  border:0;
  background: transparent;
  font-weight:800;
  color: var(--brand);
  padding: 6px 2px;
  line-height: 1;
  position: relative;
}
.tp-page.is-active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-10px;
  height:2px;
  background: var(--brand);
}
.tp-ellipsis{
  color:#6a6f73;
  font-weight:700;
}

/* =========================
   LEARN MORE ABOUT AI
========================= */
.learnmore-ai{
  padding: 44px 0 64px;
  background:#fff;
}
.lm-title{
  font-size: 2.15rem;
  font-weight: 900;
  color:#1c1d1f;
  margin-bottom: 12px;
}
.lm-desc{
  max-width: 900px;
  color:#2d2f31;
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 34px;
}
.lm-faq-title{
  font-size: 1.8rem;
  font-weight: 900;
  color:#1c1d1f;
  margin-bottom: 16px;
}

.lm-faq{
  max-width: 980px;
}
.lm-faq-item{
  border-top: 1px solid #e9eaf2;
}
.lm-faq-item:last-of-type{
  border-bottom: 1px solid #e9eaf2;
}

.lm-faq-q{
  width:100%;
  border:0;
  background: transparent;
  padding: 18px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 18px;
  font-weight: 900;
  color:#1c1d1f;
  font-size: 1.05rem;
}
.lm-faq-q:hover{
  cursor:pointer;
}

.lm-faq-a{
  display:none;
  padding: 0 0 18px 0;
  color:#2d2f31;
  line-height: 1.7;
  font-size: .98rem;
}
.lm-faq-item.is-open .lm-faq-a{
  display:block;
}

.lm-showmore{
  width:100%;
  margin-top: 20px;
  border:1px solid rgba(86,36,208,.65);
  border-radius: 12px;
  background: transparent;
  color: var(--brand);
  font-weight: 900;
  padding: 14px 18px;
}
.lm-showmore:hover{
  background: rgba(86,36,208,.06);
}

/* mobile spacing */
@media (max-width: 575.98px){
  .tp-pages{ gap: 14px; }
  .lm-title{ font-size: 1.6rem; }
  .lm-faq-title{ font-size: 1.35rem; }
}
.learnmorearea{
  max-width: 700px;
  margin:0 auto;
}

/* =========================
   AI TRUST BAR (before Learn more)
========================= */
.ai-trustbar{
  border-top: 1px solid #e9eaf2;
  border-bottom: 1px solid #e9eaf2;
  background:#fff;
}

.ai-trustbar-row{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  padding: 28px 0;
}

.ai-trust-item{
  display:flex;
  align-items:center;
  gap: 14px;
}

.ai-trust-icon{
  width:44px;
  height:44px;
  border-radius:999px;
  background:#f6f7f9;
  display:flex;
  align-items:center;
  justify-content:center;
  color:#2d2f31;
  flex: 0 0 auto;
}

.ai-trust-icon i{
  font-size:18px;
}

.ai-trust-text{
  display:flex;
  flex-direction:column;
  line-height:1.35;
}

.ai-trust-text strong{
  font-weight:800;
  color:#1c1d1f;
  font-size:.95rem;
}

.ai-trust-text span{
  color:#6a6f73;
  font-size:.9rem;
}

/* Mobile */
@media (max-width: 991.98px){
  .ai-trustbar-row{
    grid-template-columns: 1fr;
    gap: 18px;
  }
}


/* layout gốc */
.all-grid{
  display: grid;
  grid-template-columns: 280px 1fr; /* filters | results */
  transition: grid-template-columns .3s ease;
}

/* ✅ filters luôn giữ nguyên kích thước, không bị ép co */
.all-grid .filters{
  width: 280px;          /* phải đúng với cột trái */
  min-width: 280px;
  flex: 0 0 280px;
  transition: transform .3s ease, opacity .2s ease;
  will-change: transform;
}

/* khi ẩn filter */
.all-grid.is-filter-hidden{
  grid-template-columns: 0px 1fr;  /* ✅ đúng yêu cầu của bạn */
  gap:0;
}

/* ✅ slide qua trái ẩn đi, không làm reflow nội dung bên trong */
.all-grid.is-filter-hidden .filters{
  transform: translateX(-100%);
  opacity: 0;
  pointer-events: none;
}

/* optional: tránh lọt ra ngoài khi đang animate */
.all-grid{
  overflow: hidden;
}


/* Giá hiện tại */
.price-current{
  font-size: 1rem;
  font-weight: 800;
  color:#1c1d1f;
}

/* Giá cũ */
.price-old{
  font-size: .85rem;
  color:#6a6f73;
  text-decoration: line-through;
  font-weight: normal;
}

/* % giảm */
.price-off{
  font-size: .9rem;
  font-weight: 700;
  color:#1e8e3e;
}
.mc-price{
  margin-top:8px;
  font-weight:800;
  font-size:1.05rem;
  color:var(--colorText);
  display:flex;
  align-items:center;
  gap: 10px;
  white-space: nowrap;

}

.mc-sub{
  font-size:.95rem;
  color:var(--colorText);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
  min-height: 3em; 
}


/* Wrapper */
.mc-pagination{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  margin-top:22px;
  user-select:none;
  height:50px;
}

/* Link/Span chung */
.mc-pagination .page-numbers{
  border-radius: 5px;
  width: 30px;
  height: 30px;
  position:relative;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  text-decoration:none;
  font-weight:600;
  font-size:14px;
  line-height:1;
  color:#6d28d9;                 /* tím */
  padding:6px 4px;
  min-width:18px;
}

/* Current: gạch dưới */
.mc-pagination .page-numbers.current{
  pointer-events:none;
  overflow: visible;

}

.mc-pagination .page-numbers.current::after{
  content:"";
  position:absolute;
  left:50%;
  transform:translateX(-50%);
  bottom:-10px;
  width:16px;
  height:2px;
  border-radius:2px;
  background:#6d28d9;
}

/* Dots */
.mc-pagination .page-numbers.dots{
  pointer-events:none;
  padding:0;
  min-width:auto;
}

/* Prev/Next: vòng tròn */
.mc-pagination .page-numbers.prev,
.mc-pagination .page-numbers.next{
  width:42px;
  height:42px;
  min-width:42px;
  padding:0;
  border-radius:999px;
  border:1.5px solid rgba(109,40,217,.45);
  color:#6d28d9;
}

/* Icon (‹ ›) to hơn chút */
.mc-pagination .page-numbers.prev,
.mc-pagination .page-numbers.next{
  font-size:12px;
}

/* Hover */
.mc-pagination a.page-numbers:hover{
  background:rgba(109,40,217,.08);
}

/* Disabled (nếu bạn có class is-disabled) */
.mc-pagination .is-disabled{
  opacity:.35;
  pointer-events:none;
}

/* Loading state (nếu có) */
.mc-pagination.is-loading{
  opacity:.6;
  pointer-events:none;
}