/* app.css — Lattice. "Liquid Glass": translucent, blurred, layered panes over a soft aurora field. Light + dark, driven by [data-theme] on . */ :root { color-scheme: light dark; --font: -apple-system, BlinkMacSystemFont, 'SF Pro Text', 'Inter', system-ui, 'Segoe UI', Roboto, 'Noto Sans', 'Helvetica Neue', Arial, 'PingFang SC', 'Microsoft YaHei', sans-serif; /* light palette */ --bg: #eef2f9; --aurora-1: rgba(99, 102, 241, 0.20); --aurora-2: rgba(56, 189, 248, 0.18); --aurora-3: rgba(236, 72, 153, 0.12); --glass: rgba(255, 255, 255, 0.55); --glass-strong: rgba(255, 255, 255, 0.72); --glass-border: rgba(255, 255, 255, 0.65); --hairline: rgba(15, 23, 42, 0.08); --text: #0f172a; --text-dim: #59647c; --accent: #4f46e5; --accent-2: #6366f1; --accent-text: #ffffff; --bubble-in: rgba(255, 255, 255, 0.78); --bubble-out: linear-gradient(135deg, #6366f1, #4f46e5); --bubble-out-text: #ffffff; --danger: #e11d48; --ok: #059669; --shadow-lg: 0 20px 60px rgba(30, 41, 90, 0.18); --shadow-sm: 0 6px 20px rgba(30, 41, 90, 0.10); --radius: 22px; --radius-sm: 14px; --blur: 30px; } :root[data-theme='dark'] { color-scheme: dark; --bg: #070a14; --aurora-1: rgba(99, 102, 241, 0.26); --aurora-2: rgba(14, 165, 233, 0.20); --aurora-3: rgba(217, 70, 239, 0.16); --glass: rgba(22, 28, 45, 0.55); --glass-strong: rgba(26, 33, 54, 0.78); --glass-border: rgba(148, 163, 184, 0.18); --hairline: rgba(148, 163, 184, 0.14); --text: #eaf0ff; --text-dim: #9aa8c4; --accent: #818cf8; --accent-2: #a5b4fc; --accent-text: #0b1020; --bubble-in: rgba(38, 46, 71, 0.82); --bubble-out: linear-gradient(135deg, #6366f1, #7c3aed); --bubble-out-text: #ffffff; --danger: #fb7185; --ok: #34d399; --shadow-lg: 0 24px 70px rgba(0, 0, 0, 0.5); --shadow-sm: 0 8px 24px rgba(0, 0, 0, 0.4); } * { box-sizing: border-box; -webkit-tap-highlight-color: transparent; } html, body { height: 100%; margin: 0; } body { font-family: var(--font); color: var(--text); background: var(--bg); overflow: hidden; -webkit-font-smoothing: antialiased; text-rendering: optimizeLegibility; } /* aurora field */ body::before { content: ''; position: fixed; inset: -20%; background: radial-gradient(40rem 40rem at 12% -5%, var(--aurora-1), transparent 60%), radial-gradient(38rem 38rem at 100% 12%, var(--aurora-2), transparent 60%), radial-gradient(46rem 46rem at 50% 115%, var(--aurora-3), transparent 62%); filter: saturate(120%); z-index: -1; animation: drift 24s ease-in-out infinite alternate; } @keyframes drift { from { transform: translate3d(-2%, -1%, 0) scale(1.02); } to { transform: translate3d(2%, 2%, 0) scale(1.06); } } button, input, textarea { font: inherit; color: inherit; } button { border: none; background: none; cursor: pointer; } input, textarea { border: none; outline: none; background: none; } .app { height: 100dvh; display: flex; max-width: 1100px; margin: 0 auto; } /* ---------- glass primitives ---------- */ .glass { background: var(--glass); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border: 1px solid var(--glass-border); } .hairline { border-bottom: 1px solid var(--hairline); } /* ---------- sidebar (chat list) ---------- */ .pane { display: flex; flex-direction: column; height: 100dvh; min-height: 0; } .sidebar { width: 360px; flex: 0 0 360px; background: var(--glass); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border-right: 1px solid var(--glass-border); } .topbar { display: flex; align-items: center; gap: 12px; padding: max(14px, env(safe-area-inset-top)) 16px 12px; border-bottom: 1px solid var(--hairline); } .topbar h1 { font-size: 1.25rem; font-weight: 800; letter-spacing: -0.02em; margin: 0; flex: 1; } .logo { width: 34px; height: 34px; border-radius: 11px; background: linear-gradient(135deg, var(--accent-2), var(--accent)); display: grid; place-items: center; color: #fff; font-weight: 900; box-shadow: var(--shadow-sm); } .icon-btn { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; color: var(--text-dim); transition: background .15s, color .15s, transform .1s; } .icon-btn:hover { background: var(--hairline); color: var(--text); } .icon-btn:active { transform: scale(.94); } .icon-btn svg { width: 22px; height: 22px; } .search { margin: 10px 14px; padding: 10px 14px; border-radius: 13px; background: var(--hairline); display: flex; align-items: center; gap: 8px; } .search svg { width: 18px; height: 18px; color: var(--text-dim); flex: 0 0 auto; } .search input { flex: 1; font-size: .95rem; } .list { flex: 1; overflow-y: auto; overflow-x: hidden; padding: 4px 8px 90px; } .list::-webkit-scrollbar { width: 0; } .row { display: flex; align-items: center; gap: 12px; padding: 11px 12px; border-radius: 16px; cursor: pointer; transition: background .15s; } .row:hover { background: var(--hairline); } .row.active { background: var(--glass-strong); box-shadow: var(--shadow-sm); } .avatar { width: 50px; height: 50px; border-radius: 50%; flex: 0 0 auto; display: grid; place-items: center; font-weight: 700; font-size: 1.1rem; color: #fff; letter-spacing: -.02em; } .avatar.group { border-radius: 30%; } .row-main { flex: 1; min-width: 0; } .row-top { display: flex; align-items: baseline; gap: 8px; } .row-name { font-weight: 650; font-size: .98rem; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .row-time { font-size: .72rem; color: var(--text-dim); flex: 0 0 auto; } .row-sub { display: flex; align-items: center; gap: 6px; } .row-last { font-size: .85rem; color: var(--text-dim); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; flex: 1; } .badge { min-width: 20px; height: 20px; padding: 0 6px; border-radius: 10px; background: var(--accent); color: var(--accent-text); font-size: .72rem; font-weight: 700; display: grid; place-items: center; } .fab { position: absolute; bottom: calc(20px + env(safe-area-inset-bottom)); left: 296px; width: 56px; height: 56px; border-radius: 20px; background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; display: grid; place-items: center; box-shadow: var(--shadow-lg); transition: transform .12s; } .fab:active { transform: scale(.92); } .fab svg { width: 26px; height: 26px; } /* ---------- conversation ---------- */ .chat { flex: 1; display: flex; flex-direction: column; min-width: 0; height: 100dvh; } .chat-head { display: flex; align-items: center; gap: 12px; padding: max(12px, env(safe-area-inset-top)) 16px 12px; background: var(--glass); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border-bottom: 1px solid var(--hairline); } .chat-head .back { display: none; } .chat-title { flex: 1; min-width: 0; } .chat-title .name { font-weight: 700; font-size: 1.02rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .chat-title .status { font-size: .76rem; color: var(--text-dim); display: flex; align-items: center; gap: 5px; } .verify-pill { display: inline-flex; align-items: center; gap: 5px; padding: 4px 10px; border-radius: 999px; font-size: .74rem; font-weight: 650; background: var(--hairline); color: var(--text-dim); cursor: pointer; } .verify-pill.ok { color: var(--ok); background: color-mix(in srgb, var(--ok) 14%, transparent); } .verify-pill svg { width: 13px; height: 13px; } .thread { flex: 1; overflow-y: auto; padding: 18px 16px 8px; display: flex; flex-direction: column; gap: 3px; } .thread::-webkit-scrollbar { width: 0; } .daysep { align-self: center; margin: 12px 0; padding: 4px 12px; border-radius: 999px; background: var(--glass); font-size: .72rem; color: var(--text-dim); font-weight: 600; backdrop-filter: blur(10px); -webkit-backdrop-filter: blur(10px); } .msg { max-width: min(78%, 560px); padding: 9px 13px; border-radius: 18px; font-size: .95rem; line-height: 1.4; position: relative; word-wrap: break-word; overflow-wrap: anywhere; animation: pop .18s ease; } @keyframes pop { from { opacity: 0; transform: translateY(6px) scale(.98); } } .msg.in { align-self: flex-start; background: var(--bubble-in); border-bottom-left-radius: 6px; backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); box-shadow: var(--shadow-sm); } .msg.out { align-self: flex-end; background: var(--bubble-out); color: var(--bubble-out-text); border-bottom-right-radius: 6px; box-shadow: var(--shadow-sm); } .msg .sender { font-size: .74rem; font-weight: 700; color: var(--accent-2); margin-bottom: 2px; } .msg .meta { font-size: .66rem; opacity: .7; margin-top: 3px; text-align: right; } .msg.grouped { margin-top: -1px; } .file-chip { display: flex; align-items: center; gap: 10px; cursor: pointer; } .file-chip .fi { width: 40px; height: 40px; border-radius: 11px; background: var(--hairline); display: grid; place-items: center; flex: 0 0 auto; } .file-chip .fi svg { width: 20px; height: 20px; } .file-chip .fname { font-weight: 600; font-size: .9rem; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; } .file-chip .fsize { font-size: .74rem; opacity: .7; } .msg.out .file-chip .fi { background: rgba(255,255,255,.2); } .msg img.photo { max-width: 100%; border-radius: 12px; display: block; } .composer { display: flex; align-items: flex-end; gap: 8px; padding: 10px 12px calc(10px + env(safe-area-inset-bottom)); background: var(--glass); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border-top: 1px solid var(--hairline); } .composer .input-wrap { flex: 1; background: var(--hairline); border-radius: 22px; padding: 9px 15px; display: flex; } .composer textarea { flex: 1; resize: none; max-height: 130px; font-size: .96rem; line-height: 1.35; } .send-btn { width: 46px; height: 46px; border-radius: 50%; flex: 0 0 auto; background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: #fff; display: grid; place-items: center; transition: transform .1s, opacity .15s; } .send-btn:active { transform: scale(.9); } .send-btn:disabled { opacity: .4; } .send-btn svg { width: 22px; height: 22px; } .empty-chat { flex: 1; display: grid; place-items: center; text-align: center; padding: 40px; color: var(--text-dim); } .empty-chat .big { width: 76px; height: 76px; border-radius: 26px; margin: 0 auto 16px; background: var(--glass); display: grid; place-items: center; box-shadow: var(--shadow-sm); backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px); } .empty-chat .big svg { width: 38px; height: 38px; color: var(--accent); } /* ---------- screens (onboarding / settings) ---------- */ /* Full-screen views (onboarding, settings). These had NO background, so the shell rendered straight through: two stacked headers, chat rows behind the settings cards, and the compose button showing through the panel. It was never a stacking-order problem — the layer was simply transparent. The aurora is repeated here because it lives on body::before at z-index -1, which an opaque layer necessarily hides. */ .screen { position: fixed; inset: 0; display: flex; flex-direction: column; overflow-y: auto; overscroll-behavior: contain; /* don't scroll-chain to the shell */ padding: max(24px, env(safe-area-inset-top)) max(22px, env(safe-area-inset-right)) calc(24px + env(safe-area-inset-bottom)) max(22px, env(safe-area-inset-left)); z-index: 60; /* above sheets (30) and the FAB */ background-color: var(--bg); background-image: radial-gradient(40rem 40rem at 12% -5%, var(--aurora-1), transparent 60%), radial-gradient(38rem 38rem at 100% 12%, var(--aurora-2), transparent 60%), radial-gradient(46rem 46rem at 50% 115%, var(--aurora-3), transparent 62%); background-attachment: fixed; } .screen.center { justify-content: center; align-items: center; } /* On a wide screen (iPad, desktop) a settings row stretched the full window, leaving controls marooned at the far right. Keep the column readable. */ .screen > .settings-group, .screen > .topbar, .screen > .btn { width: min(680px, 100%); align-self: center; } .card { width: min(440px, 100%); border-radius: var(--radius); padding: 28px 24px; box-shadow: var(--shadow-lg); background: var(--glass-strong); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border: 1px solid var(--glass-border); } .brand { text-align: center; margin-bottom: 22px; } .brand .logo { width: 60px; height: 60px; border-radius: 20px; margin: 0 auto 14px; font-size: 1.6rem; } .brand h2 { margin: 0 0 6px; font-size: 1.5rem; font-weight: 800; letter-spacing: -.02em; } .brand p { margin: 0; color: var(--text-dim); font-size: .92rem; line-height: 1.5; } .field { margin-bottom: 16px; } .field label { display: block; font-size: .82rem; font-weight: 650; margin-bottom: 6px; color: var(--text-dim); } .field .control { background: var(--hairline); border-radius: var(--radius-sm); padding: 13px 15px; border: 1px solid transparent; transition: border-color .15s, background .15s; } .field .control:focus-within { border-color: var(--accent); background: var(--glass); } .field input, .field textarea { width: 100%; font-size: .98rem; } .btn { display: flex; align-items: center; justify-content: center; gap: 8px; width: 100%; padding: 14px; border-radius: var(--radius-sm); font-weight: 700; font-size: 1rem; transition: transform .1s, opacity .15s, background .15s; } .btn:active { transform: scale(.98); } .btn:disabled { opacity: .55; } .btn.primary { background: linear-gradient(135deg, var(--accent-2), var(--accent)); color: var(--accent-text); box-shadow: var(--shadow-sm); } .btn.ghost { background: var(--hairline); color: var(--text); } .btn.danger { background: color-mix(in srgb, var(--danger) 16%, transparent); color: var(--danger); } .btn + .btn { margin-top: 10px; } .spinner { width: 18px; height: 18px; border: 2px solid currentColor; border-right-color: transparent; border-radius: 50%; animation: spin .7s linear infinite; } @keyframes spin { to { transform: rotate(360deg); } } .err { color: var(--danger); font-size: .85rem; margin: 10px 0 0; text-align: center; min-height: 1.2em; } .warn-box { background: color-mix(in srgb, var(--danger) 10%, transparent); border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent); border-radius: var(--radius-sm); padding: 14px 16px; font-size: .88rem; line-height: 1.55; margin-bottom: 18px; } .warn-box b { display: block; margin-bottom: 5px; } /* settings rows */ .settings-group { border-radius: var(--radius); overflow: hidden; margin-bottom: 18px; box-shadow: var(--shadow-sm); background: var(--glass-strong); backdrop-filter: blur(var(--blur)); -webkit-backdrop-filter: blur(var(--blur)); border: 1px solid var(--glass-border); } .settings-group h3 { margin: 0; padding: 14px 18px 6px; font-size: .78rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-dim); } .setting { display: flex; align-items: center; gap: 12px; padding: 14px 18px; border-top: 1px solid var(--hairline); } .setting:first-of-type { border-top: none; } .setting .lbl { flex: 1; font-size: .95rem; } .setting .val { color: var(--text-dim); font-size: .9rem; } .seg { display: flex; background: var(--hairline); border-radius: 11px; padding: 3px; gap: 2px; } .seg button { padding: 7px 13px; border-radius: 8px; font-size: .84rem; font-weight: 600; color: var(--text-dim); transition: .15s; } .seg button.on { background: var(--glass-strong); color: var(--text); box-shadow: var(--shadow-sm); } select.native { background: var(--hairline); border-radius: 10px; padding: 8px 12px; font-weight: 600; } .mono { font-family: ui-monospace, 'SF Mono', Menlo, monospace; font-size: .8rem; word-break: break-all; color: var(--text-dim); } /* verification emoji */ .sas { display: flex; justify-content: center; gap: 10px; margin: 20px 0; flex-wrap: wrap; } .sas span { font-size: 2.2rem; width: 56px; height: 56px; border-radius: 16px; display: grid; place-items: center; background: var(--hairline); } /* modal / sheet */ .sheet-bg { position: fixed; inset: 0; background: rgba(6,10,20,.4); backdrop-filter: blur(3px); z-index: 30; display: flex; align-items: flex-end; justify-content: center; animation: fade .2s; } @keyframes fade { from { opacity: 0; } } .sheet { width: min(480px, 100%); max-height: 84dvh; border-radius: 26px 26px 0 0; overflow-y: auto; background: var(--glass-strong); backdrop-filter: blur(var(--blur)) saturate(160%); -webkit-backdrop-filter: blur(var(--blur)) saturate(160%); border: 1px solid var(--glass-border); padding: 10px 20px calc(24px + env(safe-area-inset-bottom)); box-shadow: var(--shadow-lg); animation: rise .28s cubic-bezier(.2,.9,.3,1); } @keyframes rise { from { transform: translateY(100%); } } .sheet .grip { width: 40px; height: 5px; border-radius: 3px; background: var(--hairline); margin: 6px auto 14px; } .sheet h3 { margin: 0 0 4px; font-size: 1.2rem; font-weight: 800; } .sheet p.sub { margin: 0 0 16px; color: var(--text-dim); font-size: .9rem; line-height: 1.5; } .pick { display: flex; align-items: center; gap: 12px; padding: 11px 8px; border-radius: 14px; cursor: pointer; } .pick:hover { background: var(--hairline); } .pick .check { width: 24px; height: 24px; border-radius: 50%; border: 2px solid var(--hairline); flex: 0 0 auto; display: grid; place-items: center; } .pick.sel .check { background: var(--accent); border-color: var(--accent); color: #fff; } .pick .check svg { width: 14px; height: 14px; opacity: 0; } .pick.sel .check svg { opacity: 1; } /* toast */ .toast { position: fixed; left: 50%; bottom: calc(30px + env(safe-area-inset-bottom)); transform: translateX(-50%); background: var(--glass-strong); backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px); border: 1px solid var(--glass-border); border-radius: 14px; padding: 12px 20px; font-size: .9rem; font-weight: 600; box-shadow: var(--shadow-lg); z-index: 70; animation: rise .25s; max-width: 90%; } .hidden { display: none !important; } /* ---------- responsive: single-column on phones ---------- */ @media (max-width: 820px) { .sidebar { width: 100%; flex: 1 0 100%; } .fab { left: auto; right: calc(20px + env(safe-area-inset-right)); } .app.in-chat .sidebar { display: none; } .app:not(.in-chat) .chat { display: none; } .chat { position: fixed; inset: 0; } .chat-head .back { display: grid; } } @media (prefers-reduced-motion: reduce) { *, *::before, *::after { animation: none !important; transition: none !important; } } /* ---------- states added by the audit fixes ---------- */ /* key-change warning on the verification pill */ .verify-pill.warn { color: var(--danger); background: color-mix(in srgb, var(--danger) 16%, transparent); font-weight: 700; } /* connection badge in the sidebar header */ .conn-badge { font-size: .72rem; font-weight: 650; color: var(--text-dim); padding: 4px 10px; border-radius: 999px; background: var(--hairline); white-space: nowrap; } /* unsent / failed outgoing messages */ .msg.failed { outline: 1px solid color-mix(in srgb, var(--danger) 50%, transparent); } .msg.out .meta { opacity: .85; } /* tap-to-load images: the placeholder is a normal file chip until decrypted */ .photo-holder { min-width: 180px; } .photo-holder .file-chip { width: 100%; text-align: left; } .photo-holder img.photo { animation: pop .2s ease; }