/* ═══════════════════════════════════════════════════════
   İlkokul1 Filtre Sistemi — style.css
   Education.com ilham alınmış, Türk eğitim platformu için
═══════════════════════════════════════════════════════ */

/* ── Değişkenler ───────────────────────────────────── */
.ilk-wrap {
  --ilk-teal:        #00BFA5;
  --ilk-teal-dark:   #009688;
  --ilk-teal-light:  #E0F7F4;
  --ilk-indigo:      #5C6BC0;
  --ilk-indigo-dark: #3949AB;
  --ilk-orange:      #FF7043;
  --ilk-yellow:      #FFD54F;
  --ilk-text:        #2D3436;
  --ilk-muted:       #636E72;
  --ilk-border:      #E8E8E8;
  --ilk-bg:          #FAFAFA;
  --ilk-white:       #FFFFFF;
  --ilk-radius:      12px;
  --ilk-shadow:      0 2px 12px rgba(0,0,0,0.08);
  --ilk-font:        -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', sans-serif;
}

/* ── Temel Yerleşim ────────────────────────────────── */
.ilk-wrap {
  display: flex;
  gap: 0;
  font-family: var(--ilk-font);
  color: var(--ilk-text);
  min-height: 80vh;
  background: #fff;
}

/* ── SOL SİDEBAR ───────────────────────────────────── */
.ilk-sidebar {
  flex: 0 0 230px;
  width: 230px;
  background: var(--ilk-bg);
  border-right: 1px solid var(--ilk-border);
  padding: 20px 16px 40px;
  min-height: 100%;
}

/* Bölüm başlığı */
.ilk-sb-title {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: none;
  border: none;
  padding: 8px 4px;
  font-family: var(--ilk-font);
  font-size: 14px;
  font-weight: 700;
  color: var(--ilk-text);
  cursor: pointer;
  text-align: left;
  margin-bottom: 10px;
}
.ilk-sb-title:hover { color: var(--ilk-teal); }
.ilk-sb-arrow {
  font-size: 16px;
  color: var(--ilk-muted);
  transition: transform .2s;
  line-height: 1;
}
.ilk-sb-title[aria-expanded="false"] .ilk-sb-arrow {
  transform: rotate(180deg);
}

/* Bölüm gövdesi (collapsible) */
.ilk-sb-body {
  overflow: hidden;
  transition: max-height .3s ease;
}
.ilk-sb-body.ilk-collapsed {
  max-height: 0 !important;
}

/* Ayraç */
.ilk-sb-divider {
  height: 1px;
  background: var(--ilk-border);
  margin: 16px 0;
}

/* ── Radio Liste ─────────────────────────────────── */
.ilk-radio-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.ilk-radio-item {
  display: flex;
  align-items: center;
  gap: 10px;
  cursor: pointer;
  padding: 3px 0;
}
.ilk-radio-item input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0; height: 0;
}
.ilk-radio-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  border: 2px solid var(--ilk-border);
  flex-shrink: 0;
  background: #fff;
  transition: border-color .15s, background .15s, box-shadow .15s;
  position: relative;
}
.ilk-radio-item input:checked ~ .ilk-radio-dot {
  border-color: var(--ilk-teal);
  background: var(--ilk-teal);
  box-shadow: inset 0 0 0 3px #fff;
}
.ilk-radio-item:hover .ilk-radio-dot {
  border-color: var(--ilk-teal);
}
.ilk-radio-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--ilk-muted);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color .15s;
}
.ilk-radio-item input:checked ~ .ilk-radio-dot ~ .ilk-radio-label,
.ilk-radio-item:hover .ilk-radio-label {
  color: var(--ilk-text);
  font-weight: 700;
}
.ilk-count {
  font-style: normal;
  font-size: 11px;
  font-weight: 600;
  color: var(--ilk-muted);
  background: var(--ilk-border);
  padding: 1px 6px;
  border-radius: 50px;
}

/* ── Sınıf Seviyesi Grid ─────────────────────────── */
.ilk-grade-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}
.ilk-grade-btn {
  padding: 7px 4px;
  border-radius: 8px;
  border: 2px solid var(--ilk-border);
  background: #fff;
  font-family: var(--ilk-font);
  font-size: 12px;
  font-weight: 700;
  color: var(--ilk-muted);
  cursor: pointer;
  text-align: center;
  transition: all .15s;
  line-height: 1.3;
}
.ilk-grade-btn:hover {
  border-color: var(--ilk-teal);
  color: var(--ilk-teal-dark);
  background: var(--ilk-teal-light);
}
.ilk-grade-btn.active {
  border-color: var(--ilk-teal);
  background: var(--ilk-teal);
  color: #fff;
}

/* ── ANA İÇERİK ──────────────────────────────────── */
.ilk-main {
  flex: 1;
  padding: 24px 28px 48px;
  background: #fff;
  min-width: 0;
}

/* ── Üst Çubuk ───────────────────────────────────── */
.ilk-topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.ilk-result-title {
  font-size: 24px;
  font-weight: 800;
  color: var(--ilk-text);
  margin-bottom: 3px;
}
.ilk-result-count {
  font-size: 14px;
  color: var(--ilk-muted);
  font-weight: 600;
}
.ilk-topbar-right {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

/* Arama kutusu (küçük) */
.ilk-search-mini {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #F5F5F5;
  border: 2px solid transparent;
  border-radius: 50px;
  padding: 8px 16px;
  transition: border-color .2s, background .2s;
}
.ilk-search-mini:focus-within {
  border-color: var(--ilk-teal);
  background: #fff;
}
.ilk-search-mini svg { color: var(--ilk-muted); flex-shrink: 0; }
.ilk-search-mini input {
  border: none;
  background: transparent;
  font-family: var(--ilk-font);
  font-size: 14px;
  color: var(--ilk-text);
  outline: none;
  width: 180px;
}

/* Sıralama */
.ilk-sort-select {
  font-family: var(--ilk-font);
  font-size: 14px;
  font-weight: 700;
  border: 2px solid var(--ilk-border);
  border-radius: 8px;
  padding: 9px 14px;
  color: var(--ilk-text);
  cursor: pointer;
  outline: none;
  background: #fff;
  transition: border-color .2s;
}
.ilk-sort-select:focus { border-color: var(--ilk-teal); }

/* ── Aktif Filtreler ─────────────────────────────── */
.ilk-active-filters {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}
.ilk-filter-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--ilk-teal-light);
  color: var(--ilk-teal-dark);
  font-size: 12px;
  font-weight: 700;
  padding: 5px 12px;
  border-radius: 50px;
}
.ilk-filter-tag-remove {
  cursor: pointer;
  font-size: 15px;
  line-height: 1;
  opacity: .7;
  transition: opacity .15s;
}
.ilk-filter-tag-remove:hover { opacity: 1; }
.ilk-clear-all {
  font-size: 13px;
  font-weight: 700;
  color: var(--ilk-teal);
  cursor: pointer;
  background: none;
  border: none;
  font-family: var(--ilk-font);
}
.ilk-clear-all:hover { text-decoration: underline; }

/* ── Kartlar Grid ────────────────────────────────── */
.ilk-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
  min-height: 200px;
}
@media (max-width: 1200px) { .ilk-grid { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 900px)  { .ilk-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 600px)  {
  .ilk-wrap { flex-direction: column; }
  .ilk-sidebar { width: 100%; border-right: none; border-bottom: 1px solid var(--ilk-border); }
  .ilk-grid { grid-template-columns: repeat(2, 1fr); }
}

/* ── Tek Kart ────────────────────────────────────── */
.ilk-card {
  background: var(--ilk-white);
  border-radius: var(--ilk-radius);
  border: 1.5px solid var(--ilk-border);
  overflow: hidden;
  cursor: pointer;
  transition: border-color .2s, transform .2s, box-shadow .2s;
  display: flex;
  flex-direction: column;
}
.ilk-card:hover {
  border-color: var(--ilk-teal);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.10);
}

/* Thumbnail */
.ilk-card__thumb-link { display: block; }
.ilk-card__thumb {
  width: 100%;
  padding-top: 72%;
  position: relative;
  overflow: hidden;
  background: #F0F0F0;
}
.ilk-card__thumb img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .3s;
}
.ilk-card:hover .ilk-card__thumb img { transform: scale(1.04); }
.ilk-card__thumb-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 52px;
  background: linear-gradient(135deg, #E3F4FD, #BBDEFB);
}

/* Badge (Ücretsiz / Premium) */
.ilk-badge {
  position: absolute;
  top: 8px; left: 8px;
  font-size: 10px;
  font-weight: 800;
  padding: 3px 10px;
  border-radius: 50px;
  text-transform: uppercase;
  letter-spacing: .4px;
  line-height: 1.4;
}
.ilk-badge--free    { background: var(--ilk-teal);   color: #fff; }
.ilk-badge--premium { background: var(--ilk-indigo); color: #fff; }

/* Sınıf chip (sağ üst) */
.ilk-card__sinif-chip {
  position: absolute;
  top: 8px; right: 8px;
  background: rgba(0,0,0,0.45);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: 50px;
  backdrop-filter: blur(2px);
}

/* Kart gövdesi */
.ilk-card__body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  flex: 1;
}
.ilk-card__title {
  font-size: 13px;
  font-weight: 700;
  color: var(--ilk-text);
  line-height: 1.4;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  text-decoration: none;
  transition: color .15s;
}
.ilk-card__title:hover { color: var(--ilk-teal-dark); }
.ilk-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 6px;
}
.ilk-card__type {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 11px;
  font-weight: 700;
  color: var(--ilk-muted);
}
.ilk-card__type-dot {
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--ilk-teal-light);
  flex-shrink: 0;
}
.ilk-card__rating {
  display: flex;
  align-items: center;
  gap: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--ilk-text);
}
.ilk-star { color: var(--ilk-yellow); }
.ilk-card__downloads {
  font-size: 11px;
  color: var(--ilk-muted);
  font-weight: 600;
}

/* ── Yükleniyor ──────────────────────────────────── */
.ilk-loading {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--ilk-muted);
}
.ilk-spinner {
  width: 36px; height: 36px;
  border: 3px solid var(--ilk-border);
  border-top-color: var(--ilk-teal);
  border-radius: 50%;
  animation: ilk-spin .7s linear infinite;
  margin: 0 auto 14px;
}
@keyframes ilk-spin { to { transform: rotate(360deg); } }

/* Boş durum */
.ilk-bos {
  grid-column: 1 / -1;
  text-align: center;
  padding: 60px 20px;
  color: var(--ilk-muted);
  font-size: 15px;
}

/* ── Sayfalama ───────────────────────────────────── */
.ilk-pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 28px 0 8px;
  flex-wrap: wrap;
}
.ilk-page-btn {
  min-width: 38px; height: 38px;
  padding: 0 12px;
  border-radius: 8px;
  border: 2px solid var(--ilk-border);
  background: #fff;
  font-family: var(--ilk-font);
  font-size: 14px;
  font-weight: 700;
  color: var(--ilk-muted);
  cursor: pointer;
  transition: all .15s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  line-height: 1;
}
.ilk-page-btn:hover {
  border-color: var(--ilk-teal);
  color: var(--ilk-teal);
}
.ilk-page-btn.ilk-active {
  background: var(--ilk-teal);
  border-color: var(--ilk-teal);
  color: #fff;
}
.ilk-page-btn:disabled {
  opacity: .4;
  cursor: default;
}
.ilk-page-dots {
  font-size: 14px;
  font-weight: 700;
  color: var(--ilk-muted);
  padding: 0 4px;
}