steam-chat/web/style.css

:root {
  --bg: #f6f8f5;
  --panel: #ffffff;
  --soft: #edf3ee;
  --line: #d8dfd8;
  --text: #1c2421;
  --muted: #66736d;
  --green: #197653;
  --green-strong: #11593e;
  --green-soft: #ddefe6;
  --orange: #a26016;
  --danger: #a33a35;
  --shadow: 0 18px 42px rgba(20, 32, 27, 0.16);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
}

body {
  background: var(--bg);
  color: var(--text);
  font: 14px/1.45 system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  cursor: pointer;
}

input,
textarea {
  min-width: 0;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: #fff;
  color: var(--text);
  outline: none;
}

input:focus,
textarea:focus {
  border-color: var(--green);
  box-shadow: 0 0 0 3px var(--green-soft);
}

.shell {
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  min-height: 100dvh;
}

.sidebar {
  display: grid;
  grid-template-rows: auto auto auto auto minmax(0, 1fr);
  min-height: 100dvh;
  border-right: 1px solid var(--line);
  background: var(--panel);
}

.side-head,
.chat-head {
  display: flex;
  align-items: center;
  gap: 12px;
  border-bottom: 1px solid var(--line);
}

.side-head {
  justify-content: space-between;
  padding: 16px;
}

.side-head h1,
.chat-title h2 {
  margin: 0;
  font-size: 18px;
  letter-spacing: 0;
}

.side-head p,
.chat-title p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.icon-btn {
  display: inline-grid;
  place-items: center;
  width: 36px;
  height: 36px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--text);
}

.open-form,
.side-tools {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  padding: 12px;
  border-bottom: 1px solid var(--line);
}

.open-form input,
.side-tools input {
  height: 36px;
  padding: 0 10px;
}

.open-form button,
.side-tools button,
#sendButton,
.url-row button {
  min-height: 36px;
  border-radius: 6px;
  background: var(--green);
  color: #fff;
  padding: 0 14px;
}

.side-tools label {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 8px;
  color: var(--muted);
}

.tabs {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
  padding: 10px;
  border-bottom: 1px solid var(--line);
}

.tabs button {
  height: 34px;
  border-radius: 6px;
  background: transparent;
  color: var(--muted);
}

.tabs button.is-active {
  background: var(--green-soft);
  color: var(--green-strong);
}

.panel {
  display: none;
  min-height: 0;
  overflow: auto;
  padding: 8px;
}

.panel.is-active {
  display: block;
}

.list-item {
  display: grid;
  grid-template-columns: 40px minmax(0, 1fr);
  gap: 10px;
  width: 100%;
  margin-bottom: 4px;
  padding: 9px;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  text-align: left;
}

.list-item:hover,
.list-item.is-active {
  background: var(--soft);
}

.avatar {
  display: grid;
  place-items: center;
  width: 40px;
  height: 40px;
  overflow: hidden;
  border-radius: 8px;
  background: var(--green-soft);
  color: var(--green-strong);
  font-weight: 700;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.item-body {
  min-width: 0;
}

.item-top {
  display: flex;
  align-items: center;
  gap: 6px;
}

.item-name,
.item-preview,
.item-meta,
.chat-title h2,
.chat-title p {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.item-name {
  min-width: 0;
  font-weight: 650;
}

.item-preview,
.item-meta,
.item-time {
  color: var(--muted);
  font-size: 12px;
}

.item-time {
  margin-left: auto;
  white-space: nowrap;
}

.presence {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #aeb8b2;
}

.presence.is-online {
  background: var(--green);
}

.chat {
  display: grid;
  grid-template-rows: 64px minmax(0, 1fr) auto;
  min-height: 100dvh;
  min-width: 0;
}

.chat-head {
  padding: 0 18px;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(12px);
}

.menu-btn {
  display: none;
}

.chat-title {
  min-width: 0;
}

.feedback {
  margin-left: auto;
  color: var(--muted);
  white-space: nowrap;
}

.messages {
  min-height: 0;
  overflow: auto;
  padding: 18px 22px 24px;
}

.empty {
  padding: 18px;
  color: var(--muted);
  text-align: center;
}

.separator {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0;
  color: var(--muted);
  font-size: 12px;
}

.separator::before,
.separator::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--line);
}

.msg-row {
  display: grid;
  margin: 10px 0;
}

.msg-row.is-self {
  justify-items: end;
}

.bubble {
  max-width: min(720px, 78%);
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  overflow: hidden;
}

.msg-row.is-self .bubble {
  border-color: #c4ddce;
  background: #effaf4;
}

.bubble.is-visual {
  max-width: min(480px, 86%);
}

.meta {
  display: flex;
  gap: 8px;
  padding: 8px 10px 0;
  color: var(--muted);
  font-size: 12px;
}

.content {
  padding: 8px 10px 10px;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
}

.content a {
  color: var(--green-strong);
}

.emoticon {
  width: 28px;
  height: 28px;
  vertical-align: middle;
}

.sticker {
  width: 128px;
  height: 128px;
  object-fit: contain;
  cursor: zoom-in;
}

.image-shell {
  min-width: 220px;
  padding: 28px 18px;
  border-radius: 6px;
  background: var(--soft);
  color: var(--muted);
  text-align: center;
}

.message-image {
  display: block;
  max-width: min(420px, 100%);
  border-radius: 6px;
  cursor: zoom-in;
}

.og-card {
  display: grid;
  grid-template-columns: 90px minmax(0, 1fr);
  gap: 10px;
  margin-top: 8px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  text-decoration: none;
}

.og-card strong,
.og-card span {
  display: block;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.og-card span {
  color: var(--muted);
  font-size: 12px;
}

.composer {
  position: relative;
  border-top: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.96);
  padding: 12px 16px calc(12px + env(safe-area-inset-bottom));
}

.compose-row {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr) auto;
  gap: 8px;
  align-items: end;
}

textarea {
  width: 100%;
  min-height: 38px;
  max-height: 160px;
  resize: none;
  padding: 9px 10px;
}

.url-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 8px;
  margin-top: 8px;
}

.url-row input {
  height: 36px;
  padding: 0 10px;
}

.upload-tray {
  display: grid;
  gap: 6px;
  margin-bottom: 8px;
}

.upload-item {
  display: flex;
  justify-content: space-between;
  gap: 8px;
  border-radius: 6px;
  background: var(--soft);
  padding: 7px 9px;
  color: var(--muted);
  font-size: 12px;
}

.picker,
.autocomplete {
  position: absolute;
  z-index: 8;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.picker {
  left: 16px;
  bottom: calc(100% - 6px);
  width: min(480px, calc(100vw - 32px));
  overflow: hidden;
}

.picker-head {
  display: grid;
  grid-template-columns: auto auto minmax(0, 1fr);
  gap: 6px;
  padding: 8px;
  border-bottom: 1px solid var(--line);
}

.picker-head button,
.picker-grid button,
.autocomplete button {
  border-radius: 6px;
  background: var(--soft);
  color: var(--text);
}

.picker-head button {
  padding: 7px 10px;
}

.picker-head button.is-active {
  background: var(--green-soft);
  color: var(--green-strong);
}

.picker-head input {
  padding: 0 9px;
}

.picker-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(84px, 1fr));
  gap: 6px;
  max-height: 280px;
  overflow: auto;
  padding: 8px;
}

.picker-grid button {
  display: grid;
  justify-items: center;
  gap: 4px;
  min-width: 0;
  padding: 8px;
}

.picker-grid img {
  width: 34px;
  height: 34px;
  object-fit: contain;
}

.picker-grid span {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 12px;
}

.autocomplete {
  left: 104px;
  bottom: calc(100% + 8px);
  width: 240px;
  max-height: 220px;
  overflow: auto;
}

.autocomplete button {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding: 8px 10px;
  background: transparent;
  text-align: left;
}

.autocomplete button.is-active,
.autocomplete button:hover {
  background: var(--soft);
}

.drop-overlay {
  position: fixed;
  inset: 18px;
  display: none;
  place-items: center;
  z-index: 30;
  border: 2px dashed var(--green);
  border-radius: 8px;
  background: rgba(246, 248, 245, 0.9);
  color: var(--green-strong);
  font-size: 24px;
  font-weight: 700;
}

.drop-overlay.is-visible {
  display: grid;
}

.lightbox {
  position: fixed;
  inset: 0;
  display: grid;
  place-items: center;
  z-index: 40;
  background: rgba(12, 18, 15, 0.88);
}

.lightbox[hidden] {
  display: none;
}

.lightbox img {
  max-width: 92vw;
  max-height: 88vh;
  transform-origin: center;
  cursor: grab;
  user-select: none;
}

.lightbox-close,
.lightbox-tools {
  position: fixed;
}

.lightbox-close {
  top: 18px;
  right: 18px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
}

.lightbox-tools {
  right: 18px;
  bottom: 24px;
  display: flex;
  gap: 6px;
}

.lightbox-tools button {
  height: 34px;
  border-radius: 6px;
  background: rgba(255, 255, 255, 0.18);
  color: #fff;
  padding: 0 12px;
}

.backdrop {
  display: none;
}

@media (max-width: 900px) {
  .shell {
    display: block;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(88vw, 340px);
    z-index: 20;
    transform: translateX(-102%);
    transition: transform 160ms ease;
    box-shadow: var(--shadow);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  .backdrop {
    position: fixed;
    inset: 0;
    z-index: 19;
    background: rgba(13, 19, 16, 0.32);
  }

  body.sidebar-open .backdrop {
    display: block;
  }

  .menu-btn {
    display: inline-grid;
  }

  .chat-head {
    padding: 0 12px;
  }

  .messages {
    padding: 14px 12px 18px;
  }

  .bubble {
    max-width: 92%;
  }

  .composer {
    padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
  }

  textarea {
    max-height: 108px;
  }

  .url-row {
    grid-template-columns: 1fr;
  }
}