@font-face {
  font-family: "DungGeunMo Fixedsys";
  src: url("/fonts/DungGeunMo.woff2") format("woff2");
  font-style: normal;
  font-weight: 400;
  font-display: swap;
}

@font-face {
  font-family: "Pretendard";
  src: url("/fonts/PretendardVariable.woff2") format("woff2");
  font-display: swap;
}

:root {
  color-scheme: only light;
  background: var(--browser-background, #fff);
  --classic-navy: #000080;
  --classic-deep: #000060;
  --classic-black: #000;
  --classic-white: #fff;
  --classic-cyan: #55ffff;
  --classic-yellow: #ffff55;
  --classic-green: #55ff55;
  --classic-gray: #bcbcbc;
  --classic-red: #ff7777;
  --messenger-bg: #eeeae3;
  --messenger-accent: #3390ec;
  --messenger-accent-hover: #2b7fd2;
  --messenger-outgoing: #e5ffcc;
  --messenger-text: #17212b;
}

* { box-sizing: border-box; }

html, body, #app { width: 100%; margin: 0; }
html, body { height: 100%; }
body { overflow: hidden; background: var(--browser-background, #fff); }
#app {
  position: fixed;
  inset-inline: 0;
  top: var(--app-viewport-top, 0px);
  min-height: 0;
  height: 100vh;
  height: var(--app-viewport-height, 100dvh);
  padding-top: env(safe-area-inset-top, 0px);
  padding-left: env(safe-area-inset-left, 0px);
  padding-right: env(safe-area-inset-right, 0px);
  background: var(--browser-background, #fff);
  overflow: hidden;
}
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
[hidden] { display: none !important; }

.entry-view {
  height: 100%;
  min-height: 0;
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(24px, 7vw, 80px) clamp(18px, 8vw, 120px) max(18px, env(safe-area-inset-bottom));
  color: var(--classic-white);
  background: var(--classic-navy);
  font-family: "DungGeunMo Fixedsys", "GulimChe", monospace;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.55;
}

.entry-main { width: min(100%, 760px); margin: auto; }
.entry-mode-switch { display: flex; gap: 18px; margin-bottom: 32px; }
.entry-mode-switch button { min-height: 40px; padding: 4px 0; color: var(--classic-gray); border: 0; background: transparent; }
.entry-mode-switch button[aria-pressed="true"] { color: var(--classic-yellow); border-bottom: 2px solid currentColor; }
.entry-mode-switch button:hover, .entry-mode-switch button:focus-visible { color: var(--classic-white); outline: none; }
.entry-service { margin: 0; color: var(--classic-cyan); }
.entry-view h1 { margin: 8px 0 0; color: var(--classic-yellow); font-size: clamp(38px, 8vw, 82px); line-height: 1; letter-spacing: -.035em; }
.entry-message { margin: 18px 0 30px; color: var(--classic-green); }
.entry-form { display: grid; gap: 8px; }
.entry-form label { color: var(--classic-cyan); }
.entry-input-row { display: grid; grid-template-columns: auto minmax(0, 1fr); gap: 10px; align-items: center; padding: 5px 0; border-bottom: 2px solid var(--classic-cyan); }
.entry-input-row input { width: 100%; min-width: 0; padding: 8px 0; color: var(--classic-white); caret-color: var(--classic-white); border: 0; outline: 0; background: transparent; }
.entry-input-row input::placeholder { color: var(--classic-gray); }
.nickname-status { min-height: 25px; margin: 4px 0 0; color: var(--classic-gray); }
.nickname-status.available { color: var(--classic-green); }
.nickname-status.unavailable { color: var(--classic-red); }
.entry-form .form-error { margin: 0; color: var(--classic-red); }
.entry-form button { justify-self: start; min-height: 46px; margin-top: 8px; padding: 6px 0; color: var(--classic-yellow); border: 0; background: transparent; }
.entry-form button:hover, .entry-form button:focus-visible { color: var(--classic-black); background: var(--classic-yellow); outline: none; }
.entry-form button:disabled { color: var(--classic-gray); background: transparent; cursor: wait; }
.entry-destination { min-height: 28px; margin: 22px 0 0; color: var(--classic-gray); }
.entry-footer { width: min(100%, 760px); margin: 28px auto 0; color: var(--classic-gray); font-size: .8em; }

html[data-mode="messenger"] .entry-view {
  padding-inline: 20px;
  color: var(--messenger-text);
  background: #f5f3ef;
  font-family: "Pretendard", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}
html[data-mode="messenger"] .entry-view .entry-main { width: min(100%, 420px); text-align: center; }
html[data-mode="messenger"] .entry-view .entry-mode-switch { justify-content: center; gap: 6px; margin-bottom: clamp(44px, 10vh, 90px); }
html[data-mode="messenger"] .entry-view .entry-mode-switch button { min-width: 86px; padding: 8px 12px; color: #707579; border-radius: 18px; }
html[data-mode="messenger"] .entry-view .entry-mode-switch button[aria-pressed="true"] { color: #fff; border: 0; background: var(--messenger-accent); }
html[data-mode="messenger"] .entry-view .entry-mode-switch button:hover,
html[data-mode="messenger"] .entry-view .entry-mode-switch button:focus-visible { color: #fff; background: var(--messenger-accent-hover); }
html[data-mode="messenger"] .entry-view .entry-service { color: var(--messenger-accent); font-size: 13px; letter-spacing: .14em; }
html[data-mode="messenger"] .entry-view h1 { margin-top: 10px; color: var(--messenger-text); font-size: clamp(38px, 12vw, 58px); letter-spacing: -.05em; }
html[data-mode="messenger"] .entry-view .entry-message { margin: 14px 0 34px; color: #707579; }
html[data-mode="messenger"] .entry-view .entry-form { gap: 9px; text-align: left; }
html[data-mode="messenger"] .entry-view .entry-form label { color: #707579; font-size: 14px; }
html[data-mode="messenger"] .entry-view .entry-input-row { display: block; padding: 0; border: 0; }
html[data-mode="messenger"] .entry-view .entry-input-row > span { display: none; }
html[data-mode="messenger"] .entry-view .entry-input-row input { min-height: 52px; padding: 13px 15px; color: var(--messenger-text); caret-color: var(--messenger-text); border: 1px solid #dfe4e8; border-radius: 10px; background: #fff; box-shadow: 0 1px 2px rgb(0 0 0 / 5%); }
html[data-mode="messenger"] .entry-view .entry-input-row input:focus { outline: 2px solid var(--messenger-accent); outline-offset: 1px; }
html[data-mode="messenger"] .entry-view .nickname-status { color: #707579; font-size: 13px; }
html[data-mode="messenger"] .entry-view .nickname-status.available { color: var(--messenger-accent); }
html[data-mode="messenger"] .entry-view .nickname-status.unavailable,
html[data-mode="messenger"] .entry-view .entry-form .form-error { color: #a00020; }
html[data-mode="messenger"] .entry-view .entry-form button { justify-self: stretch; min-height: 50px; padding: 11px 15px; color: #fff; text-align: center; border-radius: 10px; background: var(--messenger-accent); }
html[data-mode="messenger"] .entry-view .entry-form button:hover,
html[data-mode="messenger"] .entry-view .entry-form button:focus-visible { color: #fff; background: var(--messenger-accent-hover); }
html[data-mode="messenger"] .entry-view .entry-form button:disabled { color: #e5eef5; background: #9dc9ec; }
html[data-mode="messenger"] .entry-view .entry-destination { color: #707579; font-size: 13px; }
html[data-mode="messenger"] .entry-view .entry-footer { width: min(100%, 420px); color: #707579; text-align: center; }

.classic-view {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--classic-white);
  background: var(--classic-navy);
  font-family: "DungGeunMo Fixedsys", "GulimChe", monospace;
  font-size: clamp(16px, 1.6vw, 20px);
  line-height: 1.48;
}

.classic-status {
  flex: none;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 7px 12px;
  color: var(--classic-cyan);
  background: var(--classic-black);
}

.classic-connection-status {
  flex: none;
  padding: 6px 12px;
  color: var(--classic-black);
  background: var(--classic-yellow);
}
.classic-connection-status[data-state="disconnected"] { color: var(--classic-white); background: #a80000; }

.classic-content {
  flex: 1;
  min-height: 0;
  padding: 10px 12px 18px;
  overflow: auto;
  overscroll-behavior: contain;
  -webkit-overflow-scrolling: touch;
  overflow-wrap: anywhere;
}

.classic-content.classic-room-content { display: flex; flex-direction: column; padding-bottom: 0; }
.classic-content.classic-room-content > * { flex-shrink: 0; }
.classic-chat-spacer { min-height: 0; flex: 1 0 0; }

.classic-center { text-align: center; color: var(--classic-yellow); }
.classic-rule { height: 1px; margin: 8px 0; background: var(--classic-cyan); opacity: .8; }
.classic-yellow { color: var(--classic-yellow); }
.classic-cyan { color: var(--classic-cyan); }
.classic-green { color: var(--classic-green); }
.classic-gray { color: var(--classic-gray); }
.classic-red { color: var(--classic-red); }

.classic-room-head,
.classic-room-row {
  display: grid;
  grid-template-columns: 48px minmax(0, 1fr) 74px 64px;
  gap: 10px;
  align-items: center;
}

.classic-room-head { color: var(--classic-cyan); }
.classic-room-row {
  width: 100%;
  min-height: 44px;
  padding: 3px 0;
  color: inherit;
  text-align: left;
  border: 0;
  background: transparent;
}

button.classic-room-row:hover,
button.classic-room-row:focus-visible,
.classic-link-button:hover,
.classic-link-button:focus-visible {
  color: var(--classic-navy);
  background: var(--classic-white);
  outline: none;
}

button.classic-room-row:hover .classic-address,
button.classic-room-row:focus-visible .classic-address { color: var(--classic-navy); }

.classic-room-secret { color: var(--classic-gray); }
.classic-address { display: block; color: var(--classic-yellow); }
.classic-room-members { display: block; overflow: hidden; color: var(--classic-cyan); text-overflow: ellipsis; white-space: nowrap; }
.classic-voice-status { margin-top: 5px; padding: 6px 0; color: var(--classic-green); border-top: 1px solid var(--classic-green); }
.classic-voice-heading { color: var(--classic-yellow); }
.classic-voice-empty { color: var(--classic-gray); }
.classic-voice-list { display: flex; flex-wrap: wrap; gap: 2px 18px; }
.classic-voice-peer { display: inline-flex; gap: 8px; }
.classic-voice-name { color: var(--classic-cyan); }
.classic-voice-peer-status { color: var(--classic-green); }
.classic-voice-peer.voice-connecting .classic-voice-peer-status,
.classic-voice-peer.voice-waiting .classic-voice-peer-status,
.classic-voice-peer.voice-disconnected .classic-voice-peer-status,
.classic-voice-peer.voice-playback .classic-voice-peer-status { color: var(--classic-yellow); }
.classic-voice-peer.voice-failed .classic-voice-peer-status { color: var(--classic-red); }
.classic-menu { display: flex; flex-wrap: nowrap; gap: 5px 18px; margin-top: 2px; overflow-x: auto; white-space: nowrap; scrollbar-width: none; }
.classic-menu::-webkit-scrollbar { display: none; }
.classic-link-button { min-height: 42px; padding: 4px 0; color: var(--classic-yellow); border: 0; background: transparent; }
.classic-link-button.active { color: var(--classic-black); background: var(--classic-green); }
.classic-link-button:disabled,
.classic-link-button:disabled:hover { color: var(--classic-gray); background: transparent; cursor: not-allowed; }
.classic-menu > .classic-gray { min-height: 42px; display: inline-flex; align-items: center; padding: 4px 0; }
.classic-prompt { color: var(--classic-cyan); }
.classic-prompt-command { padding: 2px; color: var(--classic-yellow); vertical-align: baseline; border: 0; background: transparent; }
.classic-prompt-command:hover,
.classic-prompt-command:focus-visible { color: var(--classic-navy); background: var(--classic-white); outline: none; }

.classic-message { display: grid; grid-template-columns: 58px 110px minmax(0, 1fr); gap: 8px; padding: 2px 0; }
.classic-message-time { color: var(--classic-gray); }
.classic-message-sender { color: var(--classic-cyan); }
.classic-message.mine .classic-message-sender { color: var(--classic-yellow); }
.classic-message.system .classic-message-sender,
.classic-message.system .classic-message-text { color: var(--classic-green); }
.classic-message.whisper .classic-message-text { color: var(--classic-yellow); }
.classic-message-text { min-width: 0; white-space: pre-wrap; overflow-wrap: anywhere; }
.chat-message-link { color: inherit; text-decoration: underline; text-underline-offset: 2px; }
.classic-message-text .chat-message-link { color: var(--classic-yellow); }
.classic-inline-room-list { margin: 10px 0; padding: 8px 0; border-top: 1px solid var(--classic-green); border-bottom: 1px solid var(--classic-green); }
.classic-inline-member-list { margin: 10px 0; padding: 8px 0; border-top: 1px solid var(--classic-green); border-bottom: 1px solid var(--classic-green); }
.classic-inline-list-title { margin-bottom: 8px; color: var(--classic-yellow); text-align: center; }
.classic-inline-room-list .current-room { color: var(--classic-green); }
.classic-member-head,
.classic-member-row { display: grid; grid-template-columns: 64px minmax(0, 1fr); gap: 10px; padding: 3px 0; }
.classic-member-head { color: var(--classic-cyan); }
.classic-member-row { color: var(--classic-cyan); }
.classic-member-row.mine { color: var(--classic-yellow); }
.classic-external-link { color: var(--classic-cyan); }
.classic-image-wrap { max-width: min(520px, calc(100vw - 36px)); margin: 7px 0 10px 176px; }
.classic-image { display: block; max-width: 100%; max-height: 460px; object-fit: contain; background: var(--classic-black); }
.classic-image-meta { color: var(--classic-gray); }
.classic-image-placeholder { min-height: 100px; display: grid; place-items: center; color: var(--classic-yellow); background: var(--classic-black); }

.classic-composer {
  flex: none;
  padding: 8px 12px max(8px, env(safe-area-inset-bottom));
  color: var(--classic-white);
  background: var(--classic-black);
}

.classic-attachment { display: flex; align-items: center; gap: 10px; padding-bottom: 7px; color: var(--classic-green); }
.classic-attachment-thumbnail { width: 72px; height: 72px; flex: none; object-fit: contain; border: 1px solid var(--classic-cyan); background: #111; }
.classic-attachment-details { min-width: 0; display: grid; flex: 1; grid-template-columns: minmax(0, 1fr) auto; align-items: center; column-gap: 12px; }
.classic-attachment-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.classic-attachment-details .classic-image-meta { grid-column: 1; }
.classic-attachment-details .classic-link-button { grid-column: 2; grid-row: 1 / span 2; }
.classic-compose-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto auto; gap: 8px; align-items: center; margin: 0; }
.classic-compose-row > span[aria-hidden="true"] { line-height: inherit; }
.classic-compose-row input {
  width: 100%;
  min-width: 0;
  height: 44px;
  padding: 7px 0;
  appearance: none;
  color: var(--classic-white);
  caret-color: var(--classic-white);
  line-height: inherit;
  border: 0;
  border-radius: 0;
  background: transparent;
}
.classic-compose-row input:focus { outline: none; }
.classic-compose-row input::placeholder { color: var(--classic-gray); opacity: 1; }
.classic-text-button { min-height: 44px; padding: 7px 0; color: var(--classic-yellow); border: 0; background: transparent; }
.classic-text-button:hover, .classic-text-button:focus-visible { color: var(--classic-black); background: var(--classic-yellow); outline: none; }
.classic-hint { padding-top: 4px; color: var(--classic-gray); }

.messenger-view {
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  color: var(--messenger-text);
  background-color: var(--messenger-bg);
  background-image:
    radial-gradient(circle at 12px 12px, rgb(255 255 255 / 34%) 1.5px, transparent 1.6px),
    radial-gradient(circle at 36px 34px, rgb(92 78 65 / 8%) 1.5px, transparent 1.6px);
  background-size: 48px 48px;
  font-family: "Pretendard", "Noto Sans KR", sans-serif;
  font-size: 16px;
  line-height: 1.45;
}

.messenger-header {
  flex: none;
  min-height: 60px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 14px;
  border-bottom: 1px solid #dfe4e8;
  background: #fff;
  box-shadow: 0 1px 2px rgb(0 0 0 / 5%);
}

.messenger-header-main { flex: 1; min-width: 0; text-align: center; }
.messenger-title { overflow: hidden; text-overflow: ellipsis; white-space: nowrap; font-weight: 600; }
.messenger-subtitle { overflow: hidden; color: #707579; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.messenger-header-button { min-width: 44px; min-height: 44px; padding: 5px 8px; color: var(--messenger-accent); border: 0; border-radius: 22px; background: transparent; }
.messenger-header-button:hover, .messenger-header-button:focus-visible { background: #eaf4fc; outline: none; }
.messenger-header-button:disabled,
.messenger-header-button:disabled:hover { color: #a9b0b5; background: transparent; cursor: not-allowed; }

.messenger-connection-status {
  flex: none;
  padding: 8px 14px;
  color: #694f00;
  text-align: center;
  background: #fff0b3;
  border-bottom: 1px solid #e4cf78;
  font-size: 13px;
}
.messenger-connection-status[data-state="disconnected"] { color: #fff; background: #b3261e; border-bottom-color: #8d1712; }
.messenger-voice-status { flex: none; padding: 8px 14px; color: #38556a; background: #f4f9fc; border-bottom: 1px solid #d8e5ed; font-size: 13px; }
.messenger-voice-heading { color: #176b36; font-weight: 600; }
.messenger-voice-empty { margin-top: 2px; color: #707579; }
.messenger-voice-list { display: flex; flex-wrap: wrap; gap: 4px 12px; margin-top: 3px; }
.messenger-voice-peer { display: inline-flex; gap: 5px; }
.messenger-voice-peer-status { color: #176b36; }
.messenger-voice-peer.voice-connecting .messenger-voice-peer-status,
.messenger-voice-peer.voice-waiting .messenger-voice-peer-status,
.messenger-voice-peer.voice-disconnected .messenger-voice-peer-status,
.messenger-voice-peer.voice-playback .messenger-voice-peer-status { color: #856600; }
.messenger-voice-peer.voice-failed .messenger-voice-peer-status { color: #b3261e; font-weight: 600; }
.messenger-voice-toggle.active { color: #176b36; background: #e4f5e9; }
.voice-controls { display: flex; flex-wrap: wrap; align-items: center; gap: 4px 12px; }
.voice-controls button { min-height: 36px; padding: 4px 0; color: inherit; background: transparent; border: 0; text-decoration: underline; text-underline-offset: 3px; }
.voice-controls button:focus-visible { outline: 1px solid currentColor; outline-offset: 2px; }
.classic-voice-status .voice-controls { color: var(--classic-yellow); }
.messenger-voice-status .voice-controls { color: #286493; }
.voice-screen-toggle[data-status="unavailable"], .voice-screen-toggle[data-status="unsupported"], .voice-resume-message { color: #a35600; }
.classic-voice-status .voice-resume-message, .classic-voice-status .voice-screen-toggle[data-status="unavailable"], .classic-voice-status .voice-screen-toggle[data-status="unsupported"] { color: var(--classic-yellow); }
.messenger-voice-status { max-height: 30vh; overflow-y: auto; }

.messenger-content { flex: 1; min-height: 0; overflow: auto; overscroll-behavior: contain; -webkit-overflow-scrolling: touch; }
.messenger-room-list { min-height: 100%; padding: 4px 14px 20px; background: #fff; }
.messenger-room-row { width: 100%; min-height: 72px; display: grid; grid-template-columns: 48px minmax(0, 1fr) auto; gap: 12px; align-items: center; padding: 9px 0; color: var(--messenger-text); text-align: left; border: 0; border-bottom: 1px solid #e7ebee; background: transparent; }
button.messenger-room-row:hover, button.messenger-room-row:focus-visible { background: #f1f7fb; outline: none; }
.messenger-room-avatar { width: 48px; height: 48px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: linear-gradient(145deg, #5eb5f7, #2788d9); font-size: 19px; font-weight: 600; }
.messenger-room-title { font-weight: 600; }
.messenger-room-address { display: block; margin-top: 3px; color: #707579; font-size: 13px; }
.messenger-room-members { display: block; margin-top: 2px; overflow: hidden; color: #53616c; text-overflow: ellipsis; white-space: nowrap; font-size: 13px; }
.messenger-room-secret { color: #777; }
.messenger-room-row.current-room { color: #176b36; background: #edf7fd; }
.messenger-room-count { color: #707579; font-size: 13px; }
.messenger-lobby-actions { padding: 12px 14px; background: #fff; }
.messenger-primary { min-height: 44px; padding: 9px 14px; color: #fff; border: 0; border-radius: 22px; background: var(--messenger-accent); }

.messenger-feed { min-height: 100%; display: grid; align-content: end; padding: 18px 14px 0; }
/* Space follows the entire message (including its time), even the last one. */
.messenger-feed > * { margin-block-end: 12px; }
.messenger-system { justify-self: center; max-width: 80%; padding: 5px 10px; color: #fff; text-align: center; white-space: pre-wrap; border-radius: 12px; background: rgb(76 120 142 / 66%); box-shadow: 0 1px 1px rgb(0 0 0 / 10%); font-size: 13px; }
.messenger-inline-room-list { justify-self: center; width: min(100%, 640px); overflow: hidden; border-radius: 10px; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 14%); }
.messenger-inline-member-list { justify-self: center; width: min(100%, 640px); overflow: hidden; border-radius: 10px; background: #fff; box-shadow: 0 1px 3px rgb(0 0 0 / 14%); }
.messenger-inline-list-title { display: flex; justify-content: space-between; gap: 12px; padding: 13px 14px; border-bottom: 1px solid #ddd; }
.messenger-inline-list-title span { color: #53616c; font-size: 13px; }
.messenger-inline-room-list .messenger-room-row { padding-inline: 14px; }
.messenger-inline-room-list .messenger-room-row:last-child { border-bottom: 0; }
.messenger-member-row { min-height: 58px; display: flex; align-items: center; gap: 11px; padding: 9px 14px; border-bottom: 1px solid #eee; }
.messenger-member-row:last-child { border-bottom: 0; }
.messenger-member-row.mine { background: #edf7fd; }
.messenger-member-avatar { width: 38px; height: 38px; display: grid; flex: none; place-items: center; color: #fff; border-radius: 50%; background: var(--messenger-accent); font-size: 13px; }
.messenger-member-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messenger-message { position: relative; display: grid; justify-items: start; max-width: min(78%, 600px); padding-left: 46px; }
.messenger-message.mine { justify-self: end; justify-items: end; padding-left: 0; }
.messenger-avatar { position: absolute; left: 0; top: 0; width: 38px; height: 38px; display: grid; place-items: center; color: #fff; border-radius: 50%; background: var(--messenger-accent); font-size: 13px; }
.messenger-name { margin-bottom: 4px; color: #4d6673; font-size: 13px; }
.messenger-bubble { padding: 8px 11px; color: var(--messenger-text); white-space: pre-wrap; overflow-wrap: anywhere; border-radius: 12px 12px 12px 4px; background: #fff; box-shadow: 0 1px 2px rgb(0 0 0 / 12%); }
.messenger-bubble .chat-message-link { color: #168acd; }
.messenger-message.mine .messenger-bubble { border-radius: 12px 12px 4px 12px; background: var(--messenger-outgoing); }
.messenger-message.whisper .messenger-bubble { background: #e7f4ff; }
.messenger-time { margin-top: 2px; color: #70848f; font-size: 11px; }
.messenger-image { display: block; max-width: min(100%, 440px); max-height: 460px; margin-top: 5px; object-fit: contain; border-radius: 12px; background: #52697b; }
.messenger-image-placeholder { width: min(440px, 70vw); min-height: 150px; display: grid; place-items: center; margin-top: 5px; color: #fff; border-radius: 12px; background: #70879a; }
.messenger-external-link { display: block; margin-top: 4px; color: var(--messenger-accent); font-size: 12px; }
.new-message-button { position: sticky; bottom: 12px; display: block; margin: 0 auto; min-height: 40px; padding: 7px 12px; color: #fff; border: 0; border-radius: 20px; background: var(--messenger-accent); box-shadow: 0 2px 5px rgb(0 0 0 / 18%); }

.messenger-composer { flex: none; padding: 8px 10px max(8px, env(safe-area-inset-bottom)); border-top: 1px solid #ddd; background: #fff; }
.keyboard-open .classic-composer { padding-bottom: 8px; }
.keyboard-open .messenger-composer { padding-bottom: 8px; }
.messenger-attachment { display: flex; align-items: center; gap: 10px; margin-bottom: 7px; padding: 7px 10px; color: #38556a; border-radius: 10px; background: #f0f7fb; }
.messenger-attachment-thumbnail { width: 64px; height: 64px; flex: none; object-fit: contain; border-radius: 6px; background: #d9e4eb; }
.messenger-attachment-details { min-width: 0; display: grid; flex: 1; grid-template-columns: minmax(0, 1fr) auto; align-items: center; column-gap: 10px; }
.messenger-attachment-name { min-width: 0; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.messenger-attachment-meta { grid-column: 1; color: #667b89; font-size: 12px; }
.messenger-attachment-details .messenger-header-button { grid-column: 2; grid-row: 1 / span 2; }
.messenger-compose-row { display: grid; grid-template-columns: auto minmax(0, 1fr) auto; gap: 9px; align-items: end; margin: 0; }
.messenger-compose-row input { width: 100%; min-width: 0; height: 44px; padding: 10px 14px; appearance: none; color: var(--messenger-text); caret-color: var(--messenger-text); line-height: 1.4; border: 1px solid #e3e7ea; border-radius: 22px; background: #fff; }
.messenger-compose-row input:focus { border-color: var(--messenger-accent); outline: none; }
.messenger-compose-row input::placeholder { color: #888; }
.messenger-plus { width: 44px; min-height: 44px; padding: 0; color: #70848f; border: 0; border-radius: 50%; background: transparent; font-size: 25px; }
.messenger-plus:hover, .messenger-plus:focus-visible { color: var(--messenger-accent); background: #edf6fc; outline: none; }
.messenger-send { width: 44px; min-height: 44px; padding: 0; color: #fff; border: 0; border-radius: 50%; background: var(--messenger-accent); font-size: 18px; }
.messenger-send:hover, .messenger-send:focus-visible, .messenger-primary:hover, .messenger-primary:focus-visible { background: var(--messenger-accent-hover); outline: none; }
.classic-compose-row input:disabled, .messenger-compose-row input:disabled { cursor: not-allowed; opacity: .62; }
.classic-text-button:disabled, .messenger-plus:disabled, .messenger-send:disabled { cursor: not-allowed; opacity: .45; }

.app-dialog { width: min(92vw, 480px); padding: 0; color: #222; border: 0; border-radius: 12px; background: #fff; box-shadow: 0 18px 70px rgb(0 0 0 / 35%); font-family: "Pretendard", sans-serif; }
.app-dialog[data-mode="classic"] { font-family: "DungGeunMo Fixedsys", "GulimChe", monospace; }
.app-dialog[data-mode="messenger"] { font-family: "Pretendard", "Noto Sans KR", sans-serif; }
.app-dialog::backdrop { background: rgb(0 0 0 / 55%); }
.classic-image, .messenger-image { cursor: zoom-in; }
.classic-image:focus-visible, .messenger-image:focus-visible { outline: 2px solid var(--messenger-accent); outline-offset: 3px; }
.image-viewer { position: fixed; inset: 0; width: 100%; height: 100dvh; max-width: none; max-height: none; margin: 0; padding: max(52px, env(safe-area-inset-top)) max(12px, env(safe-area-inset-right)) max(12px, env(safe-area-inset-bottom)) max(12px, env(safe-area-inset-left)); border-radius: 0; background: transparent; box-shadow: none; color: #fff; overflow: hidden; cursor: zoom-out; }
.image-viewer[open] { display: grid; grid-template: minmax(0, 1fr) / minmax(0, 1fr); place-items: center; }
.image-viewer::backdrop { background: rgb(0 0 0 / 35%); }
#image-viewer-image { width: 100%; height: 100%; min-width: 0; min-height: 0; object-fit: contain; }
.image-viewer-close { position: absolute; top: max(4px, env(safe-area-inset-top)); right: max(8px, env(safe-area-inset-right)); width: 44px; height: 44px; padding: 0; border: 0; border-radius: 50%; color: #fff; background: #333; font-size: 32px; line-height: 1; }
.image-viewer-close:focus-visible { outline: 2px solid #fff; outline-offset: 2px; }
.app-dialog form { display: grid; gap: 9px; padding: 22px; }
.app-dialog h1, .app-dialog h2, .app-dialog p { margin: 0 0 6px; }
.app-dialog label { margin-top: 4px; font-weight: 500; }
.app-dialog input:not([type="checkbox"]), .app-dialog select { width: 100%; min-height: 44px; padding: 9px 10px; color: #222; border: 1px solid #aaa; border-radius: 7px; background: #fff; }
.address-prefix { display: flex; align-items: center; gap: 5px; color: #555; }
.address-prefix input { min-width: 0; }
.check-label { min-height: 44px; display: flex; align-items: center; gap: 8px; }
.check-label input { width: 20px; height: 20px; }
.form-help { color: #666; font-size: 13px; }
.form-error { min-height: 20px; color: #b00020; font-size: 13px; }
.dialog-actions { display: flex; justify-content: flex-end; gap: 8px; margin-top: 8px; }
.dialog-actions button { min-height: 42px; padding: 8px 14px; color: #222; border: 0; border-radius: 7px; background: #eee; }
.dialog-actions .primary-action { color: #fff; background: var(--messenger-accent); }
.dialog-actions .danger-action { color: #fff; background: #b00020; }
.danger-link { min-height: 42px; padding: 8px 0; color: #b00020; text-align: left; border: 0; background: transparent; }
.danger-link:hover, .danger-link:focus-visible { text-decoration: underline; outline: none; }
.help-dialog { width: min(94vw, 680px); }
.help-content { display: grid; gap: 18px; overflow: auto; font-family: inherit; line-height: 1.45; }
.help-section { display: grid; gap: 5px; }
.help-section-title { margin: 0; padding-bottom: 4px; color: #555; border-bottom: 1px solid #ddd; font-size: 14px; }
.help-rows { display: grid; gap: 2px; }
.help-row { min-width: 0; display: grid; grid-template-columns: minmax(190px, .85fr) minmax(0, 1.4fr); gap: 14px; padding: 3px 0; }
.help-command { justify-self: start; padding: 0; color: #003b7a; text-align: left; text-decoration: underline; text-underline-offset: 3px; overflow-wrap: anywhere; border: 0; background: transparent; }
.help-command:hover, .help-command:focus-visible { color: var(--messenger-accent-hover); outline: none; }
.help-command:disabled,
.help-command:disabled:hover { color: #999; text-decoration: none; cursor: not-allowed; }
.help-row-disabled .help-description { color: #999; }
.help-description { min-width: 0; color: #333; overflow-wrap: anywhere; }

.toast { position: fixed; z-index: 20; left: 50%; bottom: max(90px, calc(env(safe-area-inset-bottom) + 80px)); max-width: min(90vw, 520px); transform: translateX(-50%); padding: 10px 14px; color: #fff; border-radius: 8px; background: rgb(20 20 20 / 92%); font-family: "Pretendard", sans-serif; }

@media (max-width: 640px) {
  .classic-status { display: block; }
  .classic-room-head, .classic-room-row { grid-template-columns: 34px minmax(0, 1fr) 58px; gap: 6px; }
  .classic-room-kind { display: none; }
  .classic-message { grid-template-columns: 48px 80px minmax(0, 1fr); gap: 5px; }
  .classic-image-wrap { margin-left: 0; }
  .classic-hint { display: none; }
  .classic-menu { gap: 3px 14px; }
  .classic-compose-row { grid-template-columns: auto minmax(0, 1fr) auto auto; gap: 5px; }
  .classic-text-button { font-size: 13px; }
  .messenger-message { max-width: 90%; }
  .messenger-header { gap: 2px; padding-inline: 6px; }
  .messenger-header-button { min-width: 40px; padding-inline: 4px; }
  .messenger-header-button[data-compact] { font-size: 0; }
  .messenger-header-button[data-compact]::after { content: attr(data-compact); font-size: 18px; }
  .address-prefix { display: block; }
  .help-row { grid-template-columns: 1fr; gap: 0; padding: 5px 0; }
  .help-description { padding-left: 10px; color: #555; }
}