/* ChatPro - mobile first chat UI (QQ-ish bubbles) */ :root { --brand: #12b7f5; --brand-2: #0a9fdc; --bg: #f2f3f5; --panel: #ffffff; --fg: #17181a; --sub: #8b909a; --line: rgba(0, 0, 0, 0.08); --bubble-other: #ffffff; --bubble-me: #12b7f5; --bubble-me-fg: #ffffff; --shadow: 0 1px 2px rgba(0, 0, 0, 0.06); --safe-t: env(safe-area-inset-top, 0px); --safe-b: env(safe-area-inset-bottom, 0px); --safe-l: env(safe-area-inset-left, 0px); --safe-r: env(safe-area-inset-right, 0px); } /* Night palette. Which mode is active is decided in app.js (time of day, the OS setting, or an explicit choice) and expressed as data-theme on , so the stylesheet only needs this one rule. */ :root[data-theme="dark"] { color-scheme: dark; --brand: #0f9fd8; --brand-2: #0b86b8; --bg: #101114; --panel: #17181c; --fg: #e9eaec; --sub: #8b909a; --line: rgba(255, 255, 255, 0.1); --bubble-other: #262830; --bubble-me: #0f9fd8; --bubble-me-fg: #ffffff; --shadow: 0 1px 2px rgba(0, 0, 0, 0.35); } :root[data-theme="light"] { color-scheme: light; } * { box-sizing: border-box; } /* An author rule like .field { display: flex } beats the UA sheet's [hidden] { display: none }, so state the intent here. */ [hidden] { display: none !important; } html, body { height: 100%; /* The soft keyboard must not be able to scroll the page itself, otherwise the shell drifts out of line with the keyboard. Only .msgs ever scrolls. */ overflow: hidden; overscroll-behavior: none; } body { margin: 0; background: var(--bg); color: var(--fg); font: 400 16px/1.5 -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif; -webkit-text-size-adjust: 100%; -webkit-tap-highlight-color: transparent; overscroll-behavior-y: none; } button, input, textarea { font: inherit; color: inherit; } button { border: 0; background: none; cursor: pointer; padding: 0; } /* ---------------------------------------------------------------- shell -- */ .app { /* Pinned to the visual viewport: --vh / --vv-top are kept in sync with window.visualViewport, which is what actually shrinks when the keyboard opens (especially on iOS, where the layout viewport does not). */ position: fixed; top: var(--vv-top, 0px); left: 0; right: 0; display: flex; flex-direction: column; height: 100vh; height: 100dvh; height: var(--vh, 100dvh); max-width: 760px; margin: 0 auto; overflow: hidden; background: var(--bg); } @media (min-width: 761px) { .app { box-shadow: 0 0 0 1px var(--line), 0 8px 40px rgba(0, 0, 0, 0.12); } } /* -------------------------------------------------------------- top bar -- */ .topbar { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; padding: calc(8px + var(--safe-t)) calc(10px + var(--safe-r)) 8px calc(12px + var(--safe-l)); background: linear-gradient(180deg, var(--brand), var(--brand-2)); color: #fff; } .room { flex: 1 1 auto; min-width: 0; text-align: left; color: inherit; } .room-name, .room-sub { display: block; } .room-name { font-size: 17px; font-weight: 600; line-height: 1.25; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .room-sub { font-size: 12px; opacity: 0.88; line-height: 1.35; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .icon-btn { flex: 0 0 auto; display: grid; place-items: center; width: 38px; height: 38px; border-radius: 50%; color: #fff; transition: background-color 0.15s ease; } .icon-btn:active { background: rgba(255, 255, 255, 0.22); } /* --------------------------------------------------------------- banner -- */ .banner { flex: 0 0 auto; display: flex; align-items: center; gap: 8px; padding: 8px 12px; background: #fff5e6; color: #8a5a00; font-size: 13px; border-bottom: 1px solid var(--line); } .banner[hidden] { display: none; } .link-btn { margin-left: auto; flex: 0 0 auto; color: var(--brand-2); font-size: 13px; font-weight: 600; padding: 2px 4px; } :root[data-theme="dark"] .banner { background: #3a2e12; color: #ffd88a; } /* ------------------------------------------------------------- messages -- */ .msgs { flex: 1 1 auto; min-height: 0; overflow-y: auto; overflow-x: hidden; -webkit-overflow-scrolling: touch; padding: 12px calc(10px + var(--safe-r)) 14px calc(10px + var(--safe-l)); display: flex; flex-direction: column; gap: 10px; scrollbar-width: thin; } .time { align-self: center; font-size: 12px; color: var(--sub); padding: 2px 8px; } .sys { align-self: center; max-width: 90%; font-size: 12px; color: var(--sub); background: rgba(127, 127, 127, 0.12); padding: 3px 10px; border-radius: 10px; text-align: center; } .row { display: flex; align-items: flex-start; gap: 8px; max-width: 100%; } .row.me { flex-direction: row-reverse; } .avatar { flex: 0 0 auto; width: 38px; height: 38px; border-radius: 10px; display: grid; place-items: center; color: #fff; font-size: 15px; font-weight: 600; user-select: none; overflow: hidden; } .col { display: flex; flex-direction: column; gap: 3px; min-width: 0; max-width: calc(100% - 62px); } .row.me .col { align-items: flex-end; } .nick { font-size: 12px; color: var(--sub); padding: 0 2px; max-width: 100%; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; } .bubble { position: relative; padding: 9px 12px; border-radius: 14px; background: var(--bubble-other); box-shadow: var(--shadow); white-space: pre-wrap; overflow-wrap: anywhere; word-break: break-word; user-select: text; } .row.other .bubble { border-top-left-radius: 4px; } .row.me .bubble { background: var(--bubble-me); color: var(--bubble-me-fg); border-top-right-radius: 4px; } /* Bundled artwork inside a message bubble. */ .bubble .emoji { width: 22px; height: 22px; margin: 0 1px; vertical-align: -4px; user-select: none; } .pill { position: absolute; left: 50%; transform: translateX(-50%); bottom: calc(76px + var(--safe-b)); z-index: 5; padding: 6px 14px; border-radius: 999px; background: var(--brand); color: #fff; font-size: 13px; box-shadow: 0 4px 14px rgba(0, 0, 0, 0.22); } .pill[hidden] { display: none; } /* ------------------------------------------------------------- composer -- */ .composer { flex: 0 0 auto; display: flex; align-items: flex-end; gap: 8px; padding: 8px calc(10px + var(--safe-r)) calc(8px + var(--safe-b)) calc(10px + var(--safe-l)); background: var(--panel); border-top: 1px solid var(--line); } /* With the keyboard up the home-indicator inset is redundant - the keyboard already covers that strip, and keeping the padding leaves a visible gap between the input box and the keyboard. */ .app.kb-open .composer { padding-bottom: 8px; } .composer textarea { flex: 1 1 auto; min-height: 38px; max-height: 132px; padding: 9px 14px; border: 0; border-radius: 19px; background: var(--bg); outline: none; resize: none; line-height: 1.35; /* 16px keeps iOS from zooming the page when the field is focused */ font-size: 16px; } .composer textarea:disabled { opacity: 0.6; } .send { flex: 0 0 auto; height: 38px; padding: 0 18px; border-radius: 19px; background: var(--brand); color: #fff; font-size: 15px; font-weight: 600; transition: opacity 0.15s ease; } .send:disabled { opacity: 0.45; cursor: not-allowed; } .emoji-btn { flex: 0 0 auto; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; font-size: 23px; line-height: 1; } .emoji-btn[aria-expanded="true"] { background: var(--bg); } .emoji-btn:disabled, .voice-btn:disabled { opacity: 0.45; cursor: not-allowed; } .voice-btn { flex: 0 0 auto; width: 38px; height: 38px; display: grid; place-items: center; border-radius: 50%; color: var(--sub); /* A long press must not select text or pop the iOS callout. */ touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; } .voice-btn:active, .voice-btn.recording { background: var(--bg); color: var(--brand); } .voice-btn .icon-keyboard { display: none; } .voice-btn.voice-mode .icon-mic { display: none; } .voice-btn.voice-mode .icon-keyboard { display: block; } /* The bar that replaces the text field in voice mode: hold it to record. */ .hold-btn { flex: 1 1 auto; height: 38px; border-radius: 19px; background: var(--bg); color: var(--fg); font-size: 15px; font-weight: 500; touch-action: none; user-select: none; -webkit-user-select: none; -webkit-touch-callout: none; } .hold-btn:active, .hold-btn.recording { background: var(--brand); color: #fff; } .hold-btn:disabled { opacity: 0.45; } /* ------------------------------------------------------------ voice UI -- */ .voice-overlay { position: absolute; inset: 0; z-index: 25; display: flex; align-items: center; justify-content: center; background: rgba(0, 0, 0, 0.35); /* The overlay must never swallow the touch that is recording: pointer capture stays on the bar, so no pointercancel, so no phantom cancel. */ pointer-events: none; touch-action: none; } .voice-card { min-width: 172px; padding: 20px 22px; border-radius: 16px; background: rgba(0, 0, 0, 0.78); color: #fff; text-align: center; display: flex; flex-direction: column; align-items: center; gap: 6px; } .voice-badge { font-size: 30px; line-height: 1; } .voice-timer { font-size: 26px; font-variant-numeric: tabular-nums; line-height: 1.1; } .voice-hint { font-size: 13px; opacity: 0.85; } .voice-overlay.cancel .voice-card { background: rgba(178, 34, 34, 0.9); } /* A voice note inside a bubble: play button, bars, duration. */ .bubble.voice { display: flex; align-items: center; gap: 8px; padding: 9px 12px; cursor: pointer; } .voice-icon { flex: 0 0 auto; font-size: 15px; line-height: 1; width: 14px; text-align: center; } .voice-meter { flex: 1 1 auto; display: flex; align-items: center; gap: 2px; height: 16px; } .voice-meter i { display: block; width: 2px; border-radius: 1px; background: currentColor; opacity: 0.55; } .voice-sec { flex: 0 0 auto; font-size: 12px; opacity: 0.75; } /* Sits above the composer as a flex row, so the transcript shrinks instead of being covered - the same way QQ/WeChat handle their emoji tray. */ .emoji-panel { flex: 0 0 auto; display: grid; grid-template-columns: repeat(auto-fill, minmax(42px, 1fr)); gap: 2px; max-height: 190px; overflow-y: auto; padding: 8px calc(8px + var(--safe-r)) 8px calc(8px + var(--safe-l)); background: var(--panel); border-top: 1px solid var(--line); -webkit-overflow-scrolling: touch; } .emoji-panel[hidden] { display: none; } .emoji-panel button { height: 42px; border-radius: 10px; font-size: 24px; line-height: 1; display: grid; place-items: center; } .emoji-panel button img { width: 26px; height: 26px; pointer-events: none; } .emoji-panel button:active { background: rgba(127, 127, 127, 0.15); } /* ----------------------------------------------------------------- menu -- */ .menu { position: absolute; z-index: 15; top: calc(48px + var(--safe-t)); right: calc(8px + var(--safe-r)); min-width: 168px; padding: 6px; border-radius: 12px; background: var(--panel); border: 1px solid var(--line); box-shadow: 0 10px 32px rgba(0, 0, 0, 0.22); } .menu[hidden] { display: none; } .menu-title { font-size: 12px; color: var(--sub); padding: 6px 10px 2px; } .menu-sep { height: 1px; background: var(--line); margin: 6px 4px; } .menu-item { display: block; width: 100%; text-align: left; padding: 9px 10px; border-radius: 8px; font-size: 15px; } .menu-item:active { background: rgba(127, 127, 127, 0.15); } .lang-list, .theme-list { display: flex; flex-direction: column; } .lang-btn, .theme-btn { text-align: left; padding: 9px 10px; border-radius: 8px; font-size: 15px; } .lang-btn:active, .theme-btn:active { background: rgba(127, 127, 127, 0.15); } .lang-btn[aria-pressed="true"], .theme-btn[aria-pressed="true"] { color: var(--brand); font-weight: 600; } /* ---------------------------------------------------------------- sheet -- */ .sheet { position: absolute; inset: 0; z-index: 20; display: flex; align-items: flex-end; justify-content: center; background: rgba(0, 0, 0, 0.45); backdrop-filter: blur(2px); } .sheet[hidden] { display: none; } .sheet-card { width: 100%; max-width: 520px; max-height: 100%; overflow-y: auto; display: flex; flex-direction: column; gap: 12px; padding: 20px 18px calc(20px + var(--safe-b)); background: var(--panel); border-radius: 18px 18px 0 0; } @media (min-width: 761px) { .sheet { align-items: center; } .sheet-card { border-radius: 18px; } } .sheet-title { margin: 0 0 2px; font-size: 19px; font-weight: 600; text-align: center; } .tabs { display: flex; gap: 6px; padding: 4px; border-radius: 12px; background: var(--bg); } .tab { flex: 1 1 0; height: 38px; border-radius: 9px; font-size: 15px; color: var(--sub); } .tab[aria-pressed="true"] { background: var(--panel); color: var(--fg); font-weight: 600; box-shadow: var(--shadow); } .field-note { font-size: 12px; color: var(--sub); padding-left: 2px; } .field { display: flex; flex-direction: column; gap: 6px; } .field-label { font-size: 13px; color: var(--sub); padding-left: 2px; } .field input { width: 100%; height: 46px; padding: 0 14px; border-radius: 12px; border: 1px solid var(--line); background: var(--bg); outline: none; /* 16px avoids the iOS focus zoom */ font-size: 16px; } .field input:focus { border-color: var(--brand); } .primary { height: 48px; border-radius: 12px; background: var(--brand); color: #fff; font-size: 16px; font-weight: 600; } .primary:disabled { opacity: 0.6; } .err { margin: 0; font-size: 13px; color: #e5484d; text-align: center; } .err[hidden] { display: none; } .hint { margin: 0; font-size: 12px; line-height: 1.5; color: var(--sub); text-align: center; } .sheet-langs { display: flex; flex-wrap: wrap; justify-content: center; gap: 8px; padding-top: 2px; } .chip { padding: 5px 13px; border-radius: 999px; border: 1px solid var(--line); background: var(--bg); color: var(--sub); font-size: 13px; } .chip[aria-pressed="true"] { border-color: var(--brand); color: var(--brand); font-weight: 600; } /* ---------------------------------------------------------------- toast -- */ .toast { position: absolute; left: 50%; bottom: calc(96px + var(--safe-b)); z-index: 30; transform: translate(-50%, 8px); max-width: 80%; padding: 9px 16px; border-radius: 10px; background: rgba(0, 0, 0, 0.82); color: #fff; font-size: 14px; opacity: 0; transition: opacity 0.2s ease, transform 0.2s ease; pointer-events: none; } .toast.show { opacity: 1; transform: translate(-50%, 0); } @media (prefers-reduced-motion: reduce) { * { transition: none !important; } }