* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, sans-serif;
  min-height: 100vh;
  color: #ffe9b0;
  background:
    radial-gradient(circle at top, #d92323, #510606 55%, #170101);
  overflow-x: hidden;
}

.bg-stars::before {
  content: "★ ☭ ★ ☭ ★ ☭ ★ ☭ ★ ☭";
  position: fixed;
  top: 20px;
  left: 0;
  right: 0;
  text-align: center;
  color: rgba(255, 220, 90, 0.15);
  font-size: 60px;
  z-index: 0;
  pointer-events: none;
}

.app {
  position: relative;
  z-index: 2;
  max-width: 1180px;
  margin: 30px auto;
  padding: 14px;
}

.card {
  max-width: 460px;
  margin: 80px auto;
  padding: 28px;
  border-radius: 24px;
  background: rgba(70, 0, 0, 0.85);
  border: 2px solid #f4c542;
  box-shadow: 0 20px 80px rgba(0,0,0,.45);
}

h1, h2, h3 {
  margin-top: 0;
  color: #ffd45a;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.subtitle {
  color: #ffdca0;
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
  margin: 18px 0;
}

button {
  border: 0;
  padding: 12px 14px;
  border-radius: 14px;
  background: linear-gradient(135deg, #ffd45a, #b88700);
  color: #4b0000;
  font-weight: 800;
  cursor: pointer;
}

button:hover {
  filter: brightness(1.08);
}

input, textarea, select {
  width: 100%;
  padding: 13px;
  border-radius: 14px;
  border: 1px solid #d9a51c;
  background: #2b0303;
  color: #fff3c4;
  outline: none;
}

.form {
  display: grid;
  gap: 12px;
}

.file-label {
  display: grid;
  gap: 8px;
  padding: 12px;
  border: 1px dashed #ffd45a;
  border-radius: 14px;
}

.hidden {
  display: none !important;
}

.error {
  color: #ffb3b3;
  min-height: 20px;
}

.messenger {
  min-height: 82vh;
  display: grid;
  grid-template-columns: 330px 1fr;
  background: rgba(30,0,0,.72);
  border: 2px solid #f4c542;
  border-radius: 28px;
  overflow: hidden;
  box-shadow: 0 18px 80px rgba(0,0,0,.5);
}

.sidebar {
  padding: 18px;
  background: linear-gradient(180deg, #770b0b, #3d0303);
  border-right: 2px solid #b88700;
}

.profile {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 12px;
  background: rgba(255, 212, 90, .12);
  border-radius: 18px;
  margin-bottom: 16px;
}

.profile img, .chatHeader img, .item img {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  object-fit: cover;
  border: 2px solid #ffd45a;
}

.menu {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}

.list {
  display: grid;
  gap: 10px;
}

.item {
  display: flex;
  align-items: center;
  gap: 12px;
  background: rgba(255,255,255,.07);
  border: 1px solid rgba(255,212,90,.35);
  border-radius: 16px;
  padding: 10px;
  cursor: pointer;
}

.item:hover {
  background: rgba(255,212,90,.18);
}

.itemText {
  flex: 1;
  overflow: hidden;
}

.itemText small {
  display: block;
  opacity: .8;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.content {
  min-height: 70vh;
  display: flex;
  flex-direction: column;
}

.empty, .panel {
  padding: 28px;
}

.chat {
  height: 82vh;
  max-height: 760px;
  display: flex;
  flex-direction: column;
}

.chatHeader {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 14px 18px;
  background: rgba(90,0,0,.8);
  border-bottom: 1px solid #b88700;
  cursor: pointer;
}

.messages {
  flex: 1;
  overflow-y: auto;
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.msg {
  max-width: 72%;
  padding: 12px;
  border-radius: 18px;
  background: #640909;
  border: 1px solid rgba(255,212,90,.4);
}

.msg.mine {
  align-self: flex-end;
  background: #9b1111;
}

.msg b {
  color: #ffd45a;
}

.msg img {
  max-width: 260px;
  border-radius: 14px;
  margin-top: 8px;
}

.msg a {
  color: #ffd45a;
}

.messageForm {
  display: grid;
  grid-template-columns: 1fr 52px 52px;
  gap: 8px;
  padding: 12px;
  background: rgba(40,0,0,.9);
  border-top: 1px solid #b88700;
}

.panelGrid {
  display: grid;
  gap: 12px;
  max-width: 560px;
}

.row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.row button {
  white-space: nowrap;
}

.badge {
  display: inline-block;
  padding: 4px 8px;
  border-radius: 999px;
  background: #ffd45a;
  color: #590000;
  font-size: 12px;
  font-weight: bold;
}

@media (max-width: 850px) {
  .app {
    margin: 0;
    padding: 8px;
  }

  .messenger {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: 0;
    border-bottom: 2px solid #b88700;
  }

  .chat {
    height: 70vh;
  }

  .msg {
    max-width: 88%;
  }
}