/* SMART FARM V3 — E-Learning Phase 2
   Stable SSR page. No SPA, no page-transition, no DFlip on catalogue. */

:root{
  --el-bg:#000;
  --el-panel:#0b0e0c;
  --el-line:#202520;
  --el-text:#f1f4f1;
  --el-muted:#7f8781;
  --el-green:#8fb36a;
  --el-gold:#baa274;
}

body.elearning-page{
  background:#000;
  color:var(--el-text);
}

.elearning-main{
  min-height:100vh;
  background:
    radial-gradient(circle at 70% 8%,rgba(106,138,86,.08),transparent 24%),
    #000;
  padding:148px 0 110px;
}

.elearning-container{
  width:min(100% - 30px,1280px);
  margin:0 auto;
}

.elearning-hero{
  text-align:center;
  padding:34px 0 62px;
}

.elearning-kicker{
  margin:0 0 8px;
  color:#666;
  font-size:9px;
  letter-spacing:.22em;
  text-transform:uppercase;
}

.elearning-hero h1{
  margin:0;
  color:var(--el-gold);
  font-size:clamp(34px,7vw,54px);
  font-weight:300;
  line-height:1.08;
}

.elearning-hero p{
  max-width:650px;
  margin:14px auto 0;
  color:#777f79;
  font-size:12px;
  line-height:1.75;
}

.elearning-section{
  padding:34px 0 58px;
  border-top:1px solid var(--el-line);
}

.elearning-section__head{
  display:flex;
  flex-direction:column;
  gap:6px;
  margin-bottom:24px;
}

.elearning-section__head span{
  color:var(--el-green);
  font-size:9px;
  letter-spacing:.18em;
}

.elearning-section__head h2{
  margin:0;
  color:#ddd;
  font-size:clamp(22px,4vw,30px);
  font-weight:300;
}

.course-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:1px;
  background:var(--el-line);
  border:1px solid var(--el-line);
}

.course-card{
  display:flex;
  min-height:170px;
  flex-direction:column;
  padding:18px;
  background:#080a08;
  color:#fff;
  text-decoration:none;
}

.course-card:hover{
  background:#0d120e;
}

.course-card__top{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
}

.course-card__number{
  color:#596059;
  font-size:9px;
  letter-spacing:.14em;
}

.course-card__label{
  color:var(--el-gold);
  font-size:8px;
  letter-spacing:.11em;
}

.course-card h3{
  margin:auto 0 8px;
  color:#e5e8e5;
  font-size:18px;
  font-weight:400;
  line-height:1.35;
}

.course-card p{
  margin:0;
  color:#767e78;
  font-size:10px;
  line-height:1.6;
}

.course-card__foot{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:10px;
  margin-top:15px;
  padding-top:12px;
  border-top:1px solid rgba(255,255,255,.06);
  color:#777f79;
  font-size:9px;
}

.ebook-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:34px 16px;
  max-width:1100px;
  margin:0 auto;
}

.ebook-card{
  display:block;
  min-width:0;
  color:#fff;
  text-decoration:none;
  text-align:center;
}

.ebook-cover{
  display:block;
  width:100%;
  aspect-ratio:210/297;
  overflow:hidden;
  background:#0d0d0d;
  border:1px solid #1d1d1d;
}

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

.ebook-cover__placeholder{
  display:grid;
  width:100%;
  height:100%;
  place-items:center;
  color:#555;
  font-size:20px;
}

.ebook-title{
  display:block;
  margin-top:11px;
  color:#f1f1f1;
  font-size:10px;
  font-weight:400;
  line-height:1.45;
}

.ebook-course{
  display:block;
  margin-top:4px;
  color:#656b66;
  font-size:8px;
  line-height:1.4;
}

.ebook-card:hover .ebook-cover{
  border-color:#605640;
}

.elearning-empty{
  padding:24px;
  border:1px solid var(--el-line);
  background:#080a08;
  color:#747c76;
  text-align:center;
  font-size:11px;
}

@media(min-width:700px){
  .elearning-main{padding-top:158px}
  .course-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .ebook-grid{grid-template-columns:repeat(3,minmax(0,1fr));gap:44px 26px}
  .ebook-title{font-size:11px}
}

@media(min-width:1024px){
  .elearning-main{padding-top:170px}
  .elearning-hero{padding-bottom:72px}
  .course-grid{grid-template-columns:repeat(5,minmax(0,1fr))}
  .course-card{min-height:220px}
  .ebook-grid{grid-template-columns:repeat(4,minmax(0,1fr));gap:54px 34px}
  .ebook-title{font-size:12px}
}


/* ================================================================
   Master iot(4) DearFlip catalogue behavior
   Cover scale V2: approximately 60% larger than previous layout.
   ================================================================ */
.smart-dflip-grid{
  display:grid !important;
  grid-template-columns:1fr;
  gap:46px 26px;
  width:100%;
  max-width:1180px;
  margin:0 auto;
  align-items:start;
  justify-items:center;
}

.smart-dflip-grid ._df_thumb.smart-book{
  display:block !important;
  min-width:0 !important;
  width:min(100%,410px) !important;
  margin:0 !important;
  padding:0 !important;
  color:#fff !important;
  background:#0b0b0b !important;
  border:1px solid #1d1d1d !important;
  text-align:center !important;
  cursor:pointer !important;
  aspect-ratio:210/297;
  overflow:hidden;
  box-shadow:0 22px 54px rgba(0,0,0,.42);
}

.smart-dflip-grid ._df_thumb.smart-book img,
.smart-dflip-grid ._df_thumb.smart-book .df-book-cover{
  display:block !important;
  width:100% !important;
  height:100% !important;
  object-fit:cover !important;
}

.smart-dflip-grid ._df_thumb.smart-book:hover{
  border-color:#655a42 !important;
}

@media(min-width:700px){
  .smart-dflip-grid{
    grid-template-columns:repeat(2,minmax(0,1fr));
    gap:54px 34px;
    max-width:1040px;
  }

  .smart-dflip-grid ._df_thumb.smart-book{
    width:min(100%,430px) !important;
  }
}

@media(min-width:1100px){
  .smart-dflip-grid{
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:62px 44px;
    max-width:1420px;
  }

  .smart-dflip-grid ._df_thumb.smart-book{
    width:min(100%,440px) !important;
  }
}


/* ================================================================
   Cover Auto-Fit A4 Portrait
   Any uploaded cover ratio is visually cropped/zoomed to 210:297.
   The original upload file is not modified.
   ================================================================ */
.smart-dflip-grid ._df_thumb.smart-book{
  position:relative !important;
  aspect-ratio:210 / 297 !important;
  background:#080b08 !important;
}

.smart-dflip-grid ._df_thumb.smart-book img,
.smart-dflip-grid ._df_thumb.smart-book .df-book-cover,
.smart-dflip-grid ._df_thumb.smart-book [style*="background-image"]{
  width:100% !important;
  height:100% !important;
}

.smart-dflip-grid ._df_thumb.smart-book img,
.smart-dflip-grid ._df_thumb.smart-book .df-book-cover img{
  object-fit:cover !important;
  object-position:center center !important;
}

/* Our own normalized layer sits above whatever DearFlip generates. */
.smart-book__a4-cover{
  position:absolute;
  z-index:6;
  inset:0;
  overflow:hidden;
  pointer-events:none;
  background:#080b08;
}

.smart-book__a4-cover img{
  display:block !important;
  width:100% !important;
  height:100% !important;
  max-width:none !important;
  max-height:none !important;
  object-fit:cover !important;
  object-position:center center !important;
  transform:none !important;
}

/* Landscape / square images are intentionally zoom-cropped to A4 portrait. */
.smart-book__a4-cover.is-landscape img{
  width:auto !important;
  min-width:100% !important;
  height:100% !important;
  max-width:none !important;
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%) !important;
}

.smart-book__a4-cover.is-square img{
  width:auto !important;
  min-width:100% !important;
  height:100% !important;
  max-width:none !important;
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%) !important;
}

.smart-book__a4-cover.is-portrait img{
  width:100% !important;
  height:100% !important;
  object-fit:cover !important;
}

/* Keep the cover corners/book card clean. */
.smart-book__a4-cover,
.smart-book__a4-cover img{
  border-radius:inherit;
}