/* ============================================================
   DersTeders - Sosyal Medya & Paylaşım Bileşenleri
   Tüm sayfalarda ortak kullanılır. Renkler marka paletine uyar.
   ============================================================ */

/* ---- Footer / bölüm sosyal medya bloğu ---- */
.dt-social-block {
  margin: 28px auto 0;
  max-width: 720px;
  padding: 0 18px;
  text-align: center;
}
.dt-social-title {
  display: block;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--muted, var(--text-muted, var(--ink-soft, #64748B)));
  margin-bottom: 14px;
}
.dt-social {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 10px;
}
.dt-social-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid var(--border, var(--dk-border, #E2E8F0));
  background: var(--surface, var(--bg, #FFFFFF));
  color: var(--ink-soft, var(--text-secondary, #475569));
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease,
    border-color 0.2s ease, box-shadow 0.2s ease;
}
.dt-social-link svg { flex-shrink: 0; }
.dt-social-link:hover,
.dt-social-link:focus-visible {
  transform: translateY(-2px);
  color: #fff;
  background: var(--accent, var(--dk-petrol, #0F6B7C));
  border-color: var(--accent, var(--dk-petrol, #0F6B7C));
  box-shadow: 0 8px 18px rgba(15, 107, 124, 0.25);
  text-decoration: none;
  outline: none;
}
.dt-social-link.dt-x:hover,
.dt-social-link.dt-x:focus-visible {
  background: #111111;
  border-color: #111111;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.3);
}
.dt-social-link.dt-ig:hover,
.dt-social-link.dt-ig:focus-visible {
  background: linear-gradient(45deg, #F58529, #DD2A7B, #8134AF);
  border-color: #DD2A7B;
  box-shadow: 0 8px 18px rgba(221, 42, 123, 0.3);
}
.dt-social-link.dt-tt:hover,
.dt-social-link.dt-tt:focus-visible {
  background: #010101;
  border-color: #010101;
  box-shadow: 0 8px 18px rgba(0, 0, 0, 0.35);
}

/* ---- Paylaşım butonları (ders / konu sayfaları) ---- */
.dt-share {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 10px;
  margin: 18px 0;
}
.dt-share.center {
  justify-content: center;
}
.dt-share-title {
  font-size: 0.85rem;
  font-weight: 700;
  color: var(--text-secondary, var(--ink-soft, var(--muted, #475569)));
}
.dt-share-btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 8px 15px;
  border-radius: 999px;
  border: 1px solid var(--border, var(--dk-border, #E2E8F0));
  background: var(--surface, var(--bg2, var(--bg, #FFFFFF)));
  color: var(--text-secondary, var(--ink-soft, var(--muted, #475569)));
  font-size: 0.82rem;
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  cursor: pointer;
  font-family: inherit;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease,
    border-color 0.2s ease, box-shadow 0.2s ease;
}
.dt-share-btn svg { flex-shrink: 0; }
.dt-share-btn:hover,
.dt-share-btn:focus-visible {
  transform: translateY(-2px);
  color: #fff;
  background: var(--accent, var(--primary, #0F6B7C));
  border-color: var(--accent, var(--primary, #0F6B7C));
  box-shadow: 0 8px 18px rgba(15, 107, 124, 0.22);
  text-decoration: none;
  outline: none;
}
.dt-share-btn[data-share="x"]:hover,
.dt-share-btn[data-share="x"]:focus-visible {
  background: #111111;
  border-color: #111111;
}
.dt-share-btn[data-share="whatsapp"]:hover,
.dt-share-btn[data-share="whatsapp"]:focus-visible {
  background: #25D366;
  border-color: #25D366;
  box-shadow: 0 8px 18px rgba(37, 211, 102, 0.3);
}
.dt-share-btn[data-share="telegram"]:hover,
.dt-share-btn[data-share="telegram"]:focus-visible {
  background: #229ED9;
  border-color: #229ED9;
  box-shadow: 0 8px 18px rgba(34, 158, 217, 0.3);
}
.dt-share-btn[data-share="facebook"]:hover,
.dt-share-btn[data-share="facebook"]:focus-visible {
  background: #1877F2;
  border-color: #1877F2;
  box-shadow: 0 8px 18px rgba(24, 119, 242, 0.3);
}
.dt-share-btn[data-share="copy"]:hover,
.dt-share-btn[data-share="copy"]:focus-visible {
  background: var(--accent, var(--primary, #0F6B7C));
  border-color: var(--accent, var(--primary, #0F6B7C));
}

/* ---- Kopyalama bildirimi balonu ---- */
.dt-share-toast {
  position: fixed;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 9999;
  padding: 11px 18px;
  border-radius: 10px;
  background: #0A3D4A;
  color: #F5F9FA;
  border: 1px solid rgba(245, 197, 66, 0.35);
  font-size: 0.85rem;
  font-weight: 600;
  line-height: 1.3;
  text-align: center;
  max-width: min(92vw, 420px);
  box-shadow: 0 18px 40px -18px rgba(10, 61, 74, 0.8);
  animation: dt-share-toast-in 0.25s ease;
  pointer-events: none;
}
@keyframes dt-share-toast-in {
  from { opacity: 0; transform: translate(-50%, 10px); }
  to { opacity: 1; transform: translate(-50%, 0); }
}
@media (prefers-reduced-motion: reduce) {
  .dt-share-toast { animation: none; }
}

/* ---- YouTube (4. platform) hover ---- */
.dt-social-link.dt-yt:hover,
.dt-social-link.dt-yt:focus-visible {
  background: #FF0000;
  border-color: #FF0000;
  box-shadow: 0 8px 18px rgba(255, 0, 0, 0.3);
}

/* ============================================================
   PROMO TICKER ŞERİDİ (navbar altı, sticky değil)
   ============================================================ */
.dt-promo-bar {
  position: relative;
  z-index: 900;
  background: linear-gradient(90deg, #0A3D4A 0%, #0F6B7C 45%, #12879C 100%);
  border-bottom: 1px solid rgba(245, 197, 66, 0.35);
  overflow: hidden;
}
.dt-promo-viewport {
  overflow: hidden;
  width: 100%;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
  mask-image: linear-gradient(90deg, transparent, #000 4%, #000 96%, transparent);
}
.dt-promo-track {
  display: flex;
  width: max-content;
  animation: dt-promo-scroll 38s linear infinite;
  will-change: transform;
}
.dt-promo-bar:hover .dt-promo-track { animation-play-state: paused; }
.dt-promo-group {
  display: flex;
  flex-shrink: 0;
  align-items: center;
}
.dt-promo-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 9px 26px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  color: #F5F9FA;
  white-space: nowrap;
  text-decoration: none;
  transition: color 0.2s ease, background 0.2s ease;
}
.dt-promo-item::after {
  content: "•";
  margin-left: 26px;
  color: var(--gold-light, #F5C542);
  opacity: 0.7;
}
.dt-promo-item:hover,
.dt-promo-item:focus-visible {
  color: var(--gold-light, #F5C542);
  background: rgba(255, 255, 255, 0.06);
  outline: none;
}
@keyframes dt-promo-scroll {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
@media (prefers-reduced-motion: reduce) {
  .dt-promo-track { animation: none; }
}

/* ============================================================
   HERO SOSYAL ROZET SATIRI
   ============================================================ */
.dt-hero-social {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 22px;
}
.dt-hero-social-label {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: rgba(214, 233, 237, 0.75);
}
.dt-hero-social .dt-social { justify-content: flex-start; gap: 8px; }
.dt-hero-social .dt-social-link {
  padding: 7px 13px;
  font-size: 0.78rem;
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
  color: #F5F9FA;
}
.dt-hero-social .dt-social-link span { display: none; }
.dt-hero-social .dt-social-link svg { width: 16px; height: 16px; }
.dt-hero-social .dt-social-link:hover,
.dt-hero-social .dt-social-link:focus-visible { color: #fff; }

/* ============================================================
   SOSYAL MEDYA KARTLARI (#sosyal bölümü)
   ============================================================ */
.dt-social-cards {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.dt-social-card {
  --soc: var(--accent, #0F6B7C);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 12px;
  padding: 26px 22px;
  background: var(--surface, #FFFFFF);
  border: 1px solid var(--border, #E7E0D2);
  border-top: 3px solid var(--soc);
  border-radius: var(--radius-lg, 16px);
  text-decoration: none;
  color: inherit;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}
.dt-social-card:hover,
.dt-social-card:focus-visible {
  transform: translateY(-6px);
  box-shadow: 0 18px 40px -18px rgba(10, 60, 72, 0.35);
  border-color: var(--soc);
  outline: none;
}
.dt-soc-icon {
  width: 48px;
  height: 48px;
  border-radius: 13px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: color-mix(in srgb, var(--soc) 12%, transparent);
  color: var(--soc);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.6) inset, 0 8px 18px -10px rgba(10, 60, 72, 0.4);
  transition: transform 0.3s ease, background 0.3s ease;
}
.dt-social-card:hover .dt-soc-icon {
  transform: scale(1.08) rotate(-3deg);
  background: var(--soc);
  color: #fff;
}
.dt-soc-icon svg { width: 22px; height: 22px; }
.dt-social-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin: 0;
}
.dt-soc-handle {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--soc);
  margin-top: -6px;
}
.dt-soc-desc {
  font-size: 0.85rem;
  color: var(--ink-soft, #475569);
  line-height: 1.55;
  margin: 0;
  flex: 1;
}
.dt-social-card-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 4px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--soc);
  color: #fff;
  font-size: 0.83rem;
  font-weight: 700;
  line-height: 1;
  transition: filter 0.2s ease, transform 0.2s ease, box-shadow 0.2s ease;
}
.dt-social-card:hover .dt-social-card-cta {
  filter: brightness(1.08);
  transform: translateY(-2px);
  box-shadow: 0 8px 18px -8px var(--soc);
}
.dt-social-card-cta svg { width: 13px; height: 13px; }

/* Platform kart renkleri */
.dt-social-card.dt-soc-x { --soc: #111111; }
.dt-social-card.dt-soc-ig { --soc: #DD2A7B; }
.dt-social-card.dt-soc-tt { --soc: #010101; }
.dt-social-card.dt-soc-yt { --soc: #FF0000; }
[data-theme="dark"] .dt-social-card.dt-soc-x { --soc: #E7ECEF; }
[data-theme="dark"] .dt-social-card.dt-soc-tt { --soc: #F2F4F5; }

/* ============================================================
   CTA SECTION SOSYAL ENTEGRASYON
   ============================================================ */
.dt-cta-social {
  margin-top: 26px;
  text-align: center;
}
.dt-cta-social p {
  font-size: 0.85rem;
  color: var(--muted, #8AA0A8);
  margin-bottom: 14px;
}
.dt-cta-social .dt-social { justify-content: center; }
.dt-cta-social .dt-social-link {
  background: rgba(255, 255, 255, 0.06);
  border-color: rgba(255, 255, 255, 0.16);
  color: #D6E9ED;
}
.dt-cta-social .dt-social-link:hover,
.dt-cta-social .dt-social-link:focus-visible { color: #fff; }

/* ============================================================
   FOOTER PROMO METNİ
   ============================================================ */
.footer-promo {
  display: inline-block;
  margin-top: 10px;
  padding: 6px 13px;
  border-radius: 999px;
  background: rgba(197, 146, 62, 0.12);
  border: 1px solid rgba(197, 146, 62, 0.28);
  color: var(--gold, #C5923E);
  font-size: 0.74rem;
  font-weight: 700;
  letter-spacing: 0.02em;
}

/* ============================================================
   KAYIT / GİRİŞ SOSYAL PROOF
   ============================================================ */
.dt-social-proof {
  margin-top: 20px;
  padding: 14px 16px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(245, 197, 66, 0.3);
  text-align: center;
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
}
.dt-social-proof .dt-proof-stat {
  display: block;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--gold-bright, #F5C542);
  letter-spacing: -0.02em;
}
.dt-social-proof .dt-proof-text {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.8);
  line-height: 1.5;
  margin-top: 3px;
}
.dt-social-proof .dt-social { justify-content: center; margin-top: 11px; gap: 7px; }
.dt-social-proof .dt-social-link {
  padding: 6px 11px;
  font-size: 0.74rem;
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.22);
  color: #fff;
}
.dt-social-proof .dt-social-link svg { width: 14px; height: 14px; }
.dt-social-proof .dt-social-link:hover,
.dt-social-proof .dt-social-link:focus-visible { color: #fff; }

/* Açık zeminli kart içinde sosyal proof (giriş/kayıt sağ panel) */
.dt-social-proof.on-light {
  background: var(--surface-2, #F4F0E8);
  border-color: var(--border, #E7E0D2);
  backdrop-filter: none;
  -webkit-backdrop-filter: none;
}
.dt-social-proof.on-light .dt-proof-stat { color: var(--gold, #C5923E); }
.dt-social-proof.on-light .dt-proof-text { color: var(--ink-soft, #475569); }
.dt-social-proof.on-light .dt-social-link {
  background: var(--surface, #fff);
  border-color: var(--border, #E7E0D2);
  color: var(--ink-soft, #475569);
}
.dt-social-proof.on-light .dt-social-link:hover,
.dt-social-proof.on-light .dt-social-link:focus-visible { color: #fff; }

/* ============================================================
   PANEL HAFİF SOSYAL ROZET BAR
   ============================================================ */
.dt-panel-social {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  padding: 12px 18px;
  margin: 0 auto;
  background: var(--surface, rgba(255, 255, 255, 0.04));
  border: 1px solid var(--border, rgba(255, 255, 255, 0.1));
  border-radius: 14px;
}
.dt-panel-social .dt-social-title { margin-bottom: 0; }
.dt-panel-social .dt-social { justify-content: center; }
.dt-panel-social .dt-social-link { padding: 7px 13px; font-size: 0.78rem; }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  .dt-social-cards { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 560px) {
  .dt-social-block { padding: 0 12px; }
  .dt-social { gap: 8px; }
  .dt-social-link { padding: 9px 13px; font-size: 0.8rem; }
  .dt-share { gap: 8px; margin: 14px 0; }
  .dt-share-btn { padding: 8px 12px; font-size: 0.78rem; }
  .dt-promo-item { padding: 8px 16px; font-size: 0.74rem; }
  .dt-promo-item::after { margin-left: 16px; }
  .dt-social-cards { grid-template-columns: 1fr; gap: 14px; }
  .dt-hero-social { margin-top: 16px; }
  .dt-hero-social-label { width: 100%; }
}

/* ============================================================
   KOYU TEMA UYUMU
   ============================================================ */
[data-theme="dark"] .dt-social-link,
[data-theme="dark"] .dt-share-btn {
  background: var(--surface, rgba(255, 255, 255, 0.04));
}
[data-theme="dark"] .dt-social-card {
  background: var(--surface, #10262E);
  border-color: var(--border, #1F3A44);
}
[data-theme="dark"] .dt-social-card:hover {
  box-shadow: 0 18px 40px -18px rgba(0, 0, 0, 0.7);
}
[data-theme="dark"] .dt-soc-desc { color: var(--ink-soft, #9DB8C0); }
[data-theme="dark"] .dt-panel-social { background: rgba(255, 255, 255, 0.04); border-color: rgba(255, 255, 255, 0.1); }
[data-theme="dark"] .footer-promo {
  background: rgba(197, 146, 62, 0.16);
  border-color: rgba(197, 146, 62, 0.35);
  color: #E7C778;
}