@charset "UTF-8";

:root {
  --paper: #f7f7f4;
  --paper-deep: #ecece8;
  --panel: rgba(255,255,253,.94);
  --ink: #161616;
  --muted: #757575;
  --faint: #b7b7b2;
  --line: #d8d8d2;
  --line-strong: #999992;
  --accent: #8f88b5;
  --accent-soft: #e8e4f4;
  --red: #a64a4a;
  --shadow: 4px 4px 0 rgba(22,22,22,.06);
  --serif: Georgia, "Songti SC", "Noto Serif SC", "STSong", serif;
  --sans: Inter, ui-sans-serif, -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --mono: "SFMono-Regular", Consolas, "Liberation Mono", "Courier New", monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; background: #dededa; }
body {
  color: var(--ink);
  font-family: var(--sans);
  -webkit-font-smoothing: antialiased;
  overflow: hidden;
}
button, input, textarea, select { font: inherit; }
button { color: inherit; cursor: pointer; }
button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }

.app-shell {
  position: relative;
  isolation: isolate;
  width: min(100%, 620px);
  height: 100dvh;
  min-height: 640px;
  margin: 0 auto;
  overflow: hidden;
  background: var(--paper);
  border-left: 1px solid rgba(22,22,22,.08);
  border-right: 1px solid rgba(22,22,22,.08);
}
.app-shell::before {
  content: "";
  position: absolute;
  z-index: -2;
  inset: 0;
  background:
    radial-gradient(circle at 7% 30%, rgba(22,22,22,.06) 0 1px, transparent 1.5px),
    radial-gradient(circle at 93% 70%, rgba(22,22,22,.045) 0 1px, transparent 1.5px),
    linear-gradient(115deg, transparent 0 83%, rgba(143,136,181,.12) 83.1% 83.25%, transparent 83.35%),
    linear-gradient(65deg, transparent 0 17%, rgba(22,22,22,.05) 17.05% 17.15%, transparent 17.2%);
  background-size: 31px 31px, 43px 43px, auto, auto;
  pointer-events: none;
}
.paper-noise {
  position: absolute;
  z-index: -1;
  pointer-events: none;
  inset: 0;
  opacity: .42;
  background-image: repeating-linear-gradient(0deg, transparent 0 3px, rgba(22,22,22,.018) 3px 4px);
  mix-blend-mode: multiply;
}

.status-bar {
  height: 30px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: max(8px, env(safe-area-inset-top)) 20px 0;
  color: #53534f;
  font: 10px/1 var(--mono);
  letter-spacing: .1em;
}
.status-center { opacity: .48; font-size: 9px; letter-spacing: .17em; }
.status-right { display: inline-flex; gap: 8px; align-items: center; }
.status-signal { letter-spacing: -.12em; font-size: 12px; opacity: .65; }
.status-battery { font-size: 9px; letter-spacing: -.2em; }

.app-main { height: calc(100% - 30px); overflow: hidden; }
.chat-stage { position: relative; height: 100%; display: flex; flex-direction: column; padding: 13px 18px max(18px, env(safe-area-inset-bottom)); }
.topline { display: flex; justify-content: space-between; align-items: center; }
.brand-lockup { display: flex; flex-direction: column; gap: 2px; }
.brand-kicker, .drawer-kicker, .contact-tag, .composer-foot, .mode-tab, .quick-tool, .mini-label, .tool-label {
  font: 9px/1 var(--mono);
  letter-spacing: .14em;
  text-transform: uppercase;
}
.brand-kicker { color: var(--muted); font-size: 8px; }
.brand-mark { font: 17px/1 var(--serif); font-style: italic; letter-spacing: .08em; }
.icon-button, .mini-action, .send-button, .composer-add {
  border: 1px solid var(--line-strong);
  background: var(--panel);
  display: inline-grid;
  place-items: center;
  transition: transform .16s ease, background .16s ease, color .16s ease;
}
.icon-button:active, .mini-action:active, .send-button:active, .composer-add:active, .quick-tool:active, .mode-tab:active { transform: translateY(1px); }
.icon-button { width: 33px; height: 33px; border-radius: 50%; font-size: 19px; line-height: 1; }
.menu-button { font-family: var(--mono); font-size: 21px; font-weight: 300; }

.mode-row { display: flex; align-items: center; gap: 7px; padding: 20px 0 10px; border-bottom: 1px solid var(--line); }
.mode-tab, .text-button { border: 0; background: transparent; color: var(--muted); padding: 7px 7px 6px; }
.mode-tab { position: relative; display: inline-flex; align-items: center; gap: 5px; letter-spacing: .08em; }
.mode-tab::after { content: ""; position: absolute; left: 7px; right: 7px; bottom: -11px; height: 2px; background: transparent; }
.mode-tab.active { color: var(--ink); }
.mode-tab.active::after { background: var(--ink); }
.mode-dot { width: 5px; height: 5px; border: 1px solid currentColor; border-radius: 50%; display: inline-block; }
.mode-tab.active .mode-dot { background: currentColor; }
.mode-spacer { flex: 1; }
.text-button { font-size: 9px; letter-spacing: .1em; color: var(--muted); text-decoration: underline; text-underline-offset: 4px; }

.contact-head { display: flex; align-items: center; gap: 12px; padding: 16px 0 10px; }
.avatar-wrap { position: relative; flex: 0 0 auto; }
.avatar { position: relative; width: 47px; height: 47px; overflow: hidden; border: 1.5px solid var(--ink); border-radius: 50%; background: #e9e8e4; display: grid; place-items: center; }
.avatar::before, .avatar::after { content: ""; position: absolute; border: 1px solid rgba(22,22,22,.36); border-radius: 50%; transform: rotate(-16deg); }
.avatar::before { width: 66px; height: 18px; }
.avatar::after { width: 50px; height: 10px; transform: rotate(41deg); }
.avatar span { position: relative; z-index: 1; font: 22px/1 var(--serif); }
.avatar i { position: absolute; width: 4px; height: 4px; background: var(--ink); border-radius: 50%; top: 9px; left: 10px; opacity: .75; }
.online-ring { position: absolute; width: 8px; height: 8px; right: -1px; bottom: 2px; border: 1px solid var(--paper); border-radius: 50%; background: var(--ink); box-shadow: 0 0 0 1px var(--ink); }
.contact-copy { min-width: 0; flex: 1; }
.contact-name-row { display: flex; align-items: baseline; gap: 8px; }
.contact-copy h1 { margin: 0; font: 23px/1 var(--serif); font-weight: 500; letter-spacing: -.05em; }
.contact-tag { color: var(--faint); letter-spacing: .1em; font-size: 7px; }
.contact-copy p { margin: 6px 0 0; color: var(--muted); font: 11px/1.3 var(--mono); letter-spacing: .02em; }
.mini-action { width: 31px; height: 31px; border-radius: 50%; font-size: 17px; }

.if-line-card { width: 100%; display: flex; align-items: center; gap: 10px; padding: 10px 12px; margin: 2px 0 8px; border: 1px solid var(--line); border-left: 3px solid var(--ink); background: rgba(255,255,255,.55); text-align: left; box-shadow: var(--shadow); }
.if-line-card:hover { background: #fff; }
.if-line-icon { width: 20px; font-size: 14px; color: var(--accent); text-align: center; }
.if-line-copy { display: flex; flex-direction: column; gap: 4px; flex: 1; min-width: 0; }
.if-line-copy b { font: 12px/1.1 var(--serif); font-weight: 600; }
.if-line-copy small { color: var(--muted); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; font: 8px/1.2 var(--mono); letter-spacing: .05em; }
.if-line-arrow { font: 16px/1 var(--mono); }

.chat-log { flex: 1; min-height: 0; overflow-y: auto; padding: 6px 4px 16px; scrollbar-width: none; overscroll-behavior: contain; }
.chat-log::-webkit-scrollbar, .drawer-body::-webkit-scrollbar { width: 0; height: 0; }
.chat-empty { height: 100%; min-height: 170px; display: grid; place-items: center; color: var(--muted); text-align: center; font: 11px/1.5 var(--mono); }
.chat-empty strong { display: block; margin-bottom: 8px; color: var(--ink); font: 26px/1 var(--serif); font-weight: 400; }
.day-divider { display: flex; align-items: center; gap: 8px; margin: 10px 0 16px; color: var(--faint); font: 8px/1 var(--mono); letter-spacing: .12em; }
.day-divider::before, .day-divider::after { content: ""; height: 1px; flex: 1; background: var(--line); }
.message-row { display: flex; align-items: flex-end; gap: 8px; margin: 12px 0; }
.message-row.user { justify-content: flex-end; }
.message-meta { width: 23px; height: 23px; flex: 0 0 auto; border: 1px solid var(--line-strong); display: grid; place-items: center; color: var(--muted); font: 10px/1 var(--serif); }
.message-meta.sun { border-radius: 50%; background: #ededeb; color: var(--ink); }
.message-meta.user { border-radius: 2px; background: var(--ink); color: #fff; border-color: var(--ink); font-family: var(--mono); font-size: 8px; }
.bubble { position: relative; max-width: min(82%, 390px); padding: 11px 13px 9px; border: 1px solid var(--line-strong); background: rgba(255,255,255,.78); box-shadow: 2px 2px 0 rgba(22,22,22,.045); font: 13px/1.62 var(--serif); letter-spacing: .02em; white-space: pre-wrap; word-break: break-word; }
.message-row.char .bubble { border-radius: 2px 15px 15px 15px; }
.message-row.user .bubble { color: #fff; background: var(--ink); border-color: var(--ink); border-radius: 15px 2px 15px 15px; box-shadow: 2px 2px 0 rgba(22,22,22,.16); }
.bubble::after { content: ""; position: absolute; width: 5px; height: 5px; border: 1px solid var(--line-strong); border-left: 0; border-bottom: 0; background: inherit; }
.message-row.char .bubble::after { left: -4px; bottom: 6px; transform: skewY(-30deg) rotate(45deg); }
.message-row.user .bubble::after { right: -4px; bottom: 6px; transform: skewY(30deg) rotate(45deg); border-color: var(--ink); }
.bubble-time { display: block; margin-top: 7px; color: var(--faint); font: 8px/1 var(--mono); letter-spacing: .08em; }
.message-row.user .bubble-time { color: rgba(255,255,255,.56); }
.message-note { margin: -4px 31px 10px; color: var(--muted); font: 9px/1.45 var(--mono); }
.message-note::before { content: "// "; color: var(--accent); }

.typing-line { display: flex; align-items: center; gap: 8px; min-height: 18px; margin: 0 5px 8px; color: var(--muted); font: 9px/1 var(--mono); }
.typing-orbit { display: inline-flex; gap: 2px; }
.typing-orbit i { width: 4px; height: 4px; background: var(--ink); border-radius: 50%; animation: blink 1s infinite; }
.typing-orbit i:nth-child(2) { animation-delay: .15s; opacity: .65; }
.typing-orbit i:nth-child(3) { animation-delay: .3s; opacity: .35; }
.typing-line-mark { margin-left: auto; color: var(--accent); }
@keyframes blink { 0%, 100% { transform: translateY(0); opacity: .25; } 50% { transform: translateY(-2px); opacity: 1; } }

.composer-wrap { flex: 0 0 auto; padding-top: 2px; }
.quick-tools { display: flex; gap: 5px; overflow-x: auto; padding-bottom: 8px; scrollbar-width: none; }
.quick-tools::-webkit-scrollbar { display: none; }
.quick-tool { display: inline-flex; align-items: center; gap: 4px; flex: 0 0 auto; color: var(--muted); border: 1px solid var(--line); background: rgba(255,255,255,.42); padding: 6px 8px; font-size: 8px; letter-spacing: .04em; text-transform: none; }
.quick-tool span { color: var(--accent); font-size: 12px; }
.composer { display: flex; align-items: flex-end; gap: 7px; padding: 7px; background: rgba(255,255,255,.72); border: 1px solid var(--line-strong); box-shadow: var(--shadow); }
.composer-add, .send-button { width: 29px; height: 29px; flex: 0 0 auto; border-radius: 50%; }
.composer-add { font-size: 18px; font-weight: 300; }
.send-button { color: #fff; background: var(--ink); border-color: var(--ink); font-size: 16px; }
.composer textarea { width: 100%; min-height: 29px; max-height: 112px; padding: 6px 1px 5px; border: 0; outline: 0; resize: none; color: var(--ink); background: transparent; font: 13px/1.35 var(--serif); }
.composer textarea::placeholder { color: var(--faint); }
.composer-foot { display: flex; gap: 10px; padding: 8px 3px 0; color: var(--faint); font-size: 7px; letter-spacing: .04em; }
.composer-foot span:last-child { margin-left: auto; color: var(--accent); }

.tool-drawer { position: absolute; z-index: 20; top: 0; right: 0; bottom: 0; width: min(93%, 430px); transform: translateX(103%); transition: transform .26s cubic-bezier(.2,.72,.2,1); background: var(--paper); border-left: 1px solid var(--ink); box-shadow: -10px 0 35px rgba(22,22,22,.12); display: flex; flex-direction: column; }
.tool-drawer.open { transform: translateX(0); }
.drawer-backdrop { position: absolute; z-index: 19; inset: 0; background: rgba(22,22,22,.22); backdrop-filter: blur(2px); }
.drawer-head { flex: 0 0 auto; display: flex; align-items: flex-start; justify-content: space-between; padding: 24px 18px 16px; border-bottom: 1px solid var(--line); }
.drawer-kicker { display: block; margin-bottom: 7px; color: var(--muted); font-size: 8px; }
.drawer-head h2 { margin: 0; font: 24px/1 var(--serif); font-weight: 500; letter-spacing: -.04em; }
.drawer-body { flex: 1; overflow-y: auto; padding: 14px 18px 30px; scrollbar-width: none; }

.tool-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 8px; }
.tool-card { position: relative; min-height: 94px; display: flex; flex-direction: column; justify-content: space-between; align-items: flex-start; padding: 13px 12px 11px; border: 1px solid var(--line); background: rgba(255,255,255,.63); text-align: left; box-shadow: 2px 2px 0 rgba(22,22,22,.035); overflow: hidden; }
.tool-card::after { content: ""; position: absolute; width: 54px; height: 54px; right: -22px; bottom: -22px; border: 1px solid var(--line-strong); border-radius: 50%; opacity: .45; }
.tool-card:hover { border-color: var(--ink); background: #fff; }
.tool-card .tool-symbol { font: 21px/1 var(--serif); color: var(--accent); }
.tool-card b { font: 13px/1 var(--serif); font-weight: 600; }
.tool-card small { color: var(--muted); font: 8px/1.2 var(--mono); }
.section-note { margin: 14px 0 10px; color: var(--muted); font: 9px/1.5 var(--mono); }

.drawer-section { display: grid; gap: 10px; }
.panel-heading { display: flex; align-items: baseline; justify-content: space-between; padding: 3px 0 10px; border-bottom: 1px solid var(--line); }
.panel-heading h3 { margin: 0; font: 18px/1 var(--serif); font-weight: 500; }
.panel-heading span { color: var(--muted); font: 8px/1 var(--mono); letter-spacing: .08em; }
.back-to-tools { display: inline-flex; align-items: center; gap: 5px; width: max-content; padding: 0; border: 0; background: transparent; color: var(--muted); font: 9px/1 var(--mono); letter-spacing: .06em; }
.back-to-tools:hover { color: var(--ink); }

.status-card { padding: 14px; border: 1px solid var(--line); background: rgba(255,255,255,.65); }
.status-quote { margin: 0 0 13px; padding-left: 11px; border-left: 2px solid var(--accent); font: 14px/1.55 var(--serif); }
.status-quote small { display: block; margin-top: 5px; color: var(--muted); font: 8px/1 var(--mono); }
.stat-row { display: grid; grid-template-columns: 62px 1fr 32px; align-items: center; gap: 8px; margin: 11px 0; }
.stat-row label { color: var(--muted); font: 9px/1 var(--mono); }
.stat-track { height: 5px; overflow: hidden; border: 1px solid var(--line-strong); background: var(--paper); }
.stat-track i { display: block; height: 100%; background: var(--ink); }
.stat-range { width: 100%; height: 16px; margin: 0; appearance: none; background: transparent; }
.stat-range::-webkit-slider-runnable-track { height: 4px; border: 1px solid var(--line-strong); background: var(--paper); }
.stat-range::-webkit-slider-thumb { width: 11px; height: 11px; margin-top: -4px; appearance: none; border: 1px solid var(--ink); border-radius: 50%; background: var(--ink); }
.stat-range::-moz-range-track { height: 4px; border: 1px solid var(--line-strong); background: var(--paper); }
.stat-range::-moz-range-thumb { width: 9px; height: 9px; border: 1px solid var(--ink); border-radius: 50%; background: var(--ink); }
.stat-row output { text-align: right; font: 9px/1 var(--mono); }
.status-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 6px; margin-top: 13px; }
.action-button, .ghost-button, .danger-button { min-height: 32px; border: 1px solid var(--line-strong); background: #fff; font: 10px/1 var(--mono); letter-spacing: .04em; }
.action-button:hover, .ghost-button:hover { background: var(--ink); color: #fff; }
.danger-button { color: var(--red); border-color: rgba(166,74,74,.4); background: rgba(166,74,74,.04); }

.archive-list { display: grid; gap: 8px; }
.archive-card { position: relative; display: grid; grid-template-columns: 30px 1fr auto; align-items: center; gap: 9px; padding: 12px; border: 1px solid var(--line); background: rgba(255,255,255,.6); text-align: left; }
.archive-card.active { border-color: var(--ink); box-shadow: 3px 3px 0 var(--ink); }
.archive-glyph { width: 28px; height: 28px; display: grid; place-items: center; border: 1px solid var(--line-strong); color: var(--accent); font: 15px/1 var(--serif); }
.archive-card b { display: block; font: 13px/1.1 var(--serif); }
.archive-card small { display: block; margin-top: 4px; color: var(--muted); font: 8px/1.25 var(--mono); }
.archive-card em { color: var(--muted); font: 8px/1 var(--mono); font-style: normal; }

.phone-frame { padding: 11px; border: 1px solid var(--ink); background: #e4e4e0; box-shadow: 4px 4px 0 var(--ink); }
.phone-top { display: flex; align-items: center; justify-content: space-between; padding: 0 2px 9px; font: 8px/1 var(--mono); }
.phone-screen { min-height: 270px; padding: 13px; border: 1px solid var(--line-strong); background: #fbfbf8; }
.phone-lock { display: flex; align-items: center; justify-content: space-between; padding-bottom: 15px; border-bottom: 1px solid var(--line); }
.phone-lock strong { font: 22px/1 var(--serif); font-weight: 400; }
.phone-lock small { color: var(--muted); font: 8px/1.4 var(--mono); }
.phone-apps { display: grid; grid-template-columns: repeat(3, 1fr); gap: 7px; margin-top: 15px; }
.phone-app { display: grid; place-items: center; gap: 5px; min-height: 62px; border: 1px solid var(--line); background: #fff; font: 9px/1 var(--mono); }
.phone-app b { font: 19px/1 var(--serif); }
.phone-notice { margin: 15px 0 0; padding: 10px; border: 1px dashed var(--line-strong); font: 10px/1.5 var(--serif); }

.form-stack { display: grid; gap: 10px; }
.form-row { display: grid; gap: 5px; }
.form-row label { color: var(--muted); font: 8px/1 var(--mono); letter-spacing: .08em; text-transform: uppercase; }
.form-row input, .form-row textarea, .form-row select { width: 100%; border: 1px solid var(--line); border-radius: 0; padding: 9px 10px; color: var(--ink); background: rgba(255,255,255,.7); font: 12px/1.35 var(--mono); }
.form-row textarea { min-height: 70px; resize: vertical; font-family: var(--serif); }
.form-row input:focus, .form-row textarea:focus, .form-row select:focus { border-color: var(--ink); outline: 0; }
.form-actions { display: flex; gap: 7px; flex-wrap: wrap; }
.form-hint { margin: 0; color: var(--muted); font: 9px/1.5 var(--mono); }
.api-tabs { display: flex; gap: 7px; margin-bottom: 6px; border-bottom: 1px solid var(--line); }
.api-tab { border: 0; background: transparent; padding: 8px 5px; color: var(--muted); font: 9px/1 var(--mono); }
.api-tab.active { color: var(--ink); border-bottom: 2px solid var(--ink); }

.list-editor { display: grid; gap: 7px; }
.list-row { display: grid; grid-template-columns: 25px 1fr auto; align-items: center; gap: 8px; padding: 11px 10px; border: 1px solid var(--line); background: rgba(255,255,255,.62); }
.list-row.active { border-color: var(--ink); }
.list-row .list-icon { font: 16px/1 var(--serif); color: var(--accent); text-align: center; }
.list-row b { display: block; font: 12px/1.1 var(--serif); }
.list-row small { display: block; margin-top: 4px; color: var(--muted); font: 8px/1.3 var(--mono); }
.switch { position: relative; width: 31px; height: 17px; border: 1px solid var(--line-strong); border-radius: 20px; background: var(--paper-deep); }
.switch::after { content: ""; position: absolute; top: 2px; left: 2px; width: 11px; height: 11px; border-radius: 50%; background: var(--line-strong); transition: transform .16s ease, background .16s ease; }
.switch.on { background: var(--ink); border-color: var(--ink); }
.switch.on::after { transform: translateX(14px); background: #fff; }

.chip-row { display: flex; flex-wrap: wrap; gap: 6px; }
.chip { border: 1px solid var(--line); background: #fff; padding: 6px 8px; color: var(--muted); font: 9px/1 var(--mono); }
.chip.active { border-color: var(--ink); color: var(--ink); box-shadow: 2px 2px 0 var(--ink); }
.quote-sheet { padding: 14px; border: 1px solid var(--line); background: #fff; font: 13px/1.6 var(--serif); }
.quote-sheet::before { content: "STYLE SHEET / 01"; display: block; margin-bottom: 11px; color: var(--faint); font: 8px/1 var(--mono); }

.toast { position: absolute; z-index: 50; left: 50%; bottom: max(18px, env(safe-area-inset-bottom)); transform: translate(-50%, 20px); opacity: 0; pointer-events: none; padding: 9px 12px; border: 1px solid var(--ink); background: var(--ink); color: #fff; font: 10px/1.2 var(--mono); transition: opacity .2s ease, transform .2s ease; white-space: nowrap; }
.toast.show { opacity: 1; transform: translate(-50%, 0); }
.sr-only { position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px; overflow: hidden; clip: rect(0,0,0,0); white-space: nowrap; border: 0; }

@media (min-width: 760px) {
  body { display: grid; place-items: center; min-height: 100dvh; padding: 20px; }
  .app-shell { height: min(900px, calc(100dvh - 40px)); border: 1px solid rgba(22,22,22,.22); box-shadow: 12px 12px 0 rgba(22,22,22,.08); }
}
@media (max-width: 380px) {
  .chat-stage { padding-left: 14px; padding-right: 14px; }
  .brand-kicker { font-size: 7px; }
  .contact-copy h1 { font-size: 21px; }
  .mode-row { gap: 2px; }
  .mode-tab { padding-left: 4px; padding-right: 4px; }
  .text-button { padding-right: 0; }
  .bubble { max-width: 86%; }
}