/* Tek elden, dört ekran: sekmeler ve sunucudan cihazlara giden duyuru */

/* Canlı sistem */
.sistem {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 40px;
  align-items: stretch;
}
.sistem-sol {
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.sekmeler {
  display: flex;
  flex-direction: column;
  border-top: 1px solid var(--cizgi);
}
.sekme {
  text-align: left;
  background: none;
  border: 0;
  border-bottom: 1px solid var(--cizgi);
  padding: 16px 4px;
  font-family: var(--baslik);
  font-weight: 700;
  font-size: clamp(20px, 2vw, 26px);
  color: var(--soluk);
  display: flex;
  justify-content: space-between;
  align-items: center;
  transition: color 0.2s, padding 0.25s;
}
.sekme::after {
  content: '';
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--vurgu);
  transform: scale(0);
  transition: transform 0.25s;
}
.sekme:hover {
  color: var(--yazi);
}
.sekme[aria-selected='true'] {
  color: var(--yazi);
  padding-left: 14px;
}
.sekme[aria-selected='true']::after {
  transform: scale(1);
}
.sekme-aciklama p {
  margin: 0;
  color: var(--soluk);
  min-height: 3.2em;
}
.duyuru {
  margin-top: auto;
  background: var(--yuzey);
  border-radius: 20px;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.duyuru label {
  font-size: 15px;
  color: var(--soluk);
}
.duyuru-satir {
  display: flex;
  gap: 8px;
}
.duyuru input {
  flex: 1;
  min-width: 0;
  font: inherit;
  color: var(--yazi);
  background: var(--zemin);
  border: 1.5px solid transparent;
  border-radius: 999px;
  padding: 0 18px;
  outline: none;
}
.duyuru input:focus {
  border-color: var(--vurgu);
}

.sahne {
  position: relative;
  aspect-ratio: 16 / 12;
  background: var(--yuzey);
  border-radius: 28px;
  overflow: hidden;
}
.kablolar {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
.kablolar path {
  fill: none;
  stroke: var(--cizgi);
  stroke-width: 2;
  stroke-dasharray: 5 6;
}
.cihaz {
  position: absolute;
  background: var(--zemin);
  border: 1.5px solid var(--cizgi);
  border-radius: 12px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: border-color 0.3s, opacity 0.3s, translate 0.4s cubic-bezier(0.2, 0.8, 0.2, 1);
}
.sahne[data-secili] .cihaz {
  opacity: 0.55;
}
.sahne.yayin .cihaz {
  opacity: 1;
}
.sahne[data-secili='masaustu'] .masaustu,
.sahne[data-secili='web'] .web,
.sahne[data-secili='mobil'] .mobil,
.sahne[data-secili='sunucu'] .sunucu {
  opacity: 1;
  border-color: var(--vurgu);
  translate: 0 -4px;
}
.masaustu {
  left: 5%;
  top: 7%;
  width: 40%;
  height: 36%;
}
.web {
  right: 5%;
  top: 7%;
  width: 38%;
  height: 32%;
}
.mobil {
  left: 10%;
  bottom: 7%;
  width: 15%;
  height: 40%;
  border-radius: 18px;
}
.sunucu {
  left: 50%;
  top: 56%;
  width: 22%;
  transform: translateX(-50%);
  padding: 8px;
  gap: 6px;
}
.cihaz-cubuk {
  display: flex;
  gap: 4px;
  padding: 7px 9px;
  border-bottom: 1px solid var(--cizgi);
}
.cihaz-cubuk i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--cizgi);
}
.cihaz-cubuk.adres span {
  height: 6px;
  width: 60%;
  margin: 0 auto;
  border-radius: 6px;
  background: var(--cizgi);
}
.cihaz-ic {
  flex: 1;
  display: flex;
  gap: 8px;
  padding: 10px;
  min-height: 0;
}
.mobil .cihaz-ic {
  padding-top: 20px;
}
.yan-menu {
  width: 24%;
  border-radius: 6px;
  background: var(--yuzey);
}
.satirlar {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.satirlar b {
  height: 6px;
  border-radius: 6px;
  background: var(--cizgi);
}
.satirlar b:nth-child(2) {
  width: 70%;
}
.satirlar b:nth-child(3) {
  width: 50%;
}
.resim {
  width: 38%;
  border-radius: 6px;
  background: var(--yuzey-2);
}
.raf {
  display: flex;
  align-items: center;
  gap: 8px;
  background: var(--yuzey);
  border-radius: 6px;
  padding: 6px 8px;
}
.raf i {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #4ade80;
  flex: none;
}
.raf span {
  height: 5px;
  flex: 1;
  border-radius: 5px;
  background: var(--cizgi);
}
.sunucu.gonderiyor .raf i {
  animation: kirp 0.18s steps(1) 5;
}
.sunucu.gonderiyor .raf:nth-child(2) i {
  animation-delay: 0.06s;
}
.sunucu.gonderiyor .raf:nth-child(3) i {
  animation-delay: 0.12s;
}
@keyframes kirp {
  50% {
    background: var(--vurgu);
  }
}
.paket {
  position: absolute;
  left: -7px;
  top: -7px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--vurgu);
  box-shadow: 0 0 0 5px color-mix(in srgb, var(--vurgu) 30%, transparent), 0 0 18px var(--vurgu);
  pointer-events: none;
}
.mesaj {
  position: absolute;
  left: 8px;
  right: 8px;
  bottom: 8px;
  background: var(--vurgu);
  color: var(--vurgu-ustu);
  border-radius: 8px;
  padding: 6px 9px;
  font-size: 12.5px;
  font-weight: 600;
  line-height: 1.3;
  opacity: 0;
  transform: translateY(10px) scale(0.96);
  pointer-events: none;
}
.mesaj.goster {
  animation: mesaj-gel 3.6s cubic-bezier(0.2, 0.8, 0.2, 1) forwards;
}
@keyframes mesaj-gel {
  0% {
    opacity: 0;
    transform: translateY(10px) scale(0.96);
  }
  12%,
  85% {
    opacity: 1;
    transform: none;
  }
  100% {
    opacity: 0;
    transform: translateY(-4px);
  }
}
.mobil .mesaj {
  font-size: 11px;
  left: 6px;
  right: 6px;
}

@media (max-width: 960px) {
  .sistem {
    grid-template-columns: minmax(0, 1fr);
  }
}
@media (max-width: 680px) {
  .sistem {
    display: flex;
    flex-direction: column;
    gap: 20px;
  }
  .sistem-sol {
    display: contents;
  }
  .sekmeler {
    order: 1;
  }
  .sekme-aciklama {
    order: 2;
  }
  .sahne {
    order: 3;
    aspect-ratio: 1 / 1;
  }
  .mobil {
    width: 24%;
    left: 6%;
  }
  .duyuru {
    order: 4;
  }
  .duyuru-satir {
    flex-direction: column;
  }
  .duyuru input {
    min-height: 48px;
  }
}