:root {
  --bg-1: #f1ebe4;
  --bg-2: #faf7f2;
  --bg-3: #e8dfd6;
  --ink: #2e2925;
  --muted: #847b72;
  --subtle: #aa9f95;
  --card: rgba(255, 253, 250, .82);
  --card-solid: #fffdfa;
  --panel: rgba(255, 252, 248, .93);
  --line: rgba(80, 64, 50, .10);
  --line-strong: rgba(80, 64, 50, .18);
  --accent: #c56f51;
  --accent-deep: #9e5036;
  --accent-soft: #f0ddd5;
  --user-bubble: #e8d5cc;
  --assistant-bubble: rgba(255,255,255,.92);
  --thinking: #efe8e3;
  --tool: #f6eedc;
  --error: #ffe5e3;
  --danger: #be4b4b;
  --success: #4f9a67;
  --shadow: 0 20px 60px rgba(72, 54, 40, .13);
  --small-shadow: 0 9px 26px rgba(72, 54, 40, .10);
  --radius-xl: 34px;
  --radius-lg: 25px;
  --radius-md: 18px;
  --mascot-fur: #fffdf7;
  --mascot-line: #d8d0c6;
  --crab: #ed9888;
  --crab-deep: #d67769;
  --font: ui-rounded, "SF Pro Rounded", "SamsungOne", "Noto Sans SC", "Microsoft YaHei", system-ui, sans-serif;
}

body[data-theme="waves"] {
  --bg-1: #dff6ff;
  --bg-2: #fffbdc;
  --bg-3: #e4faed;
  --ink: #2b4051;
  --muted: #748a9a;
  --subtle: #9eb0bc;
  --card: rgba(255, 255, 255, .73);
  --card-solid: #fff;
  --panel: rgba(255, 255, 255, .91);
  --line: rgba(68, 143, 173, .14);
  --line-strong: rgba(68, 143, 173, .24);
  --accent: #62c4ee;
  --accent-deep: #2798ca;
  --accent-soft: #d9f3ff;
  --user-bubble: #d8f0ff;
  --assistant-bubble: rgba(255, 255, 255, .92);
  --thinking: #eee8ff;
  --tool: #fff1bd;
  --error: #ffe0de;
  --danger: #dc6864;
  --success: #55a975;
  --shadow: 0 20px 60px rgba(65, 134, 158, .16);
  --small-shadow: 0 9px 26px rgba(65, 134, 158, .12);
  --mascot-fur: #fffef9;
  --mascot-line: #d7d7cf;
  --crab: #ff9d92;
  --crab-deep: #ef746f;
}

* { box-sizing: border-box; }
html, body { width: 100%; height: 100%; margin: 0; }
body {
  overflow: hidden;
  color: var(--ink);
  font-family: var(--font);
  background:
    radial-gradient(circle at 15% 0%, rgba(255,255,255,.9), transparent 33%),
    radial-gradient(circle at 92% 8%, rgba(255,255,255,.65), transparent 26%),
    linear-gradient(135deg, var(--bg-1), var(--bg-2) 54%, var(--bg-3));
  transition: background .25s ease, color .25s ease;
}
button, input, textarea, select { font: inherit; color: inherit; }
button { -webkit-tap-highlight-color: transparent; }
svg { display: block; }
.hidden { display: none !important; }
.mobile-only { display: none !important; }

.glass-card {
  background: var(--card);
  border: 1px solid rgba(255,255,255,.75);
  box-shadow: var(--shadow);
  -webkit-backdrop-filter: blur(24px) saturate(1.15);
  backdrop-filter: blur(24px) saturate(1.15);
}

.eyebrow {
  margin: 0 0 5px;
  color: var(--muted);
  font-size: 10px;
  font-weight: 900;
  letter-spacing: .16em;
}

.login-view {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 22px;
}
.login-card {
  width: min(480px, 100%);
  padding: 30px;
  border-radius: var(--radius-xl);
  text-align: center;
}
.login-card h1 { margin: 4px 0 9px; font-size: clamp(28px, 8vw, 40px); letter-spacing: -.045em; }
.login-copy { margin: 0 auto 23px; max-width: 370px; color: var(--muted); line-height: 1.65; font-size: 14px; }
.login-mascot { width: 150px; margin: -5px auto 4px; color: var(--accent); animation: loginBob 3.4s ease-in-out infinite; }
.login-mascot svg { width: 100%; }
.login-form { text-align: left; }
.login-form label { display: block; margin: 0 0 8px 4px; color: var(--muted); font-size: 12px; font-weight: 800; }
.password-row { display: flex; gap: 9px; }
.password-row input, .prompt-card input {
  min-width: 0;
  flex: 1;
  border: 1px solid var(--line-strong);
  border-radius: 18px;
  padding: 13px 15px;
  outline: none;
  background: rgba(255,255,255,.74);
}
.password-row input:focus, .prompt-card input:focus { border-color: var(--accent); box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 16%, transparent); }
.form-error { min-height: 18px; margin: 8px 4px 0; color: var(--danger); font-size: 12px; }

.primary-button, .secondary-button, .danger-button, .text-button, .new-chat-button {
  border: 0;
  cursor: pointer;
}
.primary-button {
  border-radius: 17px;
  padding: 12px 18px;
  color: #fff;
  font-weight: 850;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 84%, white), var(--accent-deep));
  box-shadow: 0 10px 24px color-mix(in srgb, var(--accent) 28%, transparent);
}
.primary-button:active { transform: translateY(1px); }
.secondary-button {
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  padding: 11px 14px;
  background: rgba(255,255,255,.7);
  font-weight: 800;
}
.danger-button {
  border-radius: 16px;
  padding: 11px 14px;
  background: color-mix(in srgb, var(--danger) 13%, white);
  color: var(--danger);
  font-weight: 850;
}
.text-button { padding: 5px; background: transparent; color: var(--muted); font-size: 12px; }

.app-view {
  position: relative;
  width: min(1300px, 100%);
  height: 100dvh;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 310px minmax(0, 1fr);
  gap: 14px;
  padding: 14px;
}
.sidebar, .chat-shell { min-height: 0; overflow: hidden; border-radius: var(--radius-xl); }
.sidebar { display: flex; flex-direction: column; padding: 20px 16px 15px; }
.sidebar-head { display: flex; align-items: flex-start; justify-content: space-between; padding: 0 4px 14px; }
.brand { font-size: 22px; font-weight: 950; letter-spacing: -.055em; }
body[data-theme="waves"] .brand {
  background: linear-gradient(90deg, #5ebfe8, #8fd49d, #f5c660, #f49eb8, #aa9be4);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.new-chat-button {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  margin-bottom: 13px;
  padding: 12px 15px;
  border-radius: 18px;
  color: #fff;
  font-weight: 900;
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 82%, white), var(--accent-deep));
  box-shadow: 0 12px 28px color-mix(in srgb, var(--accent) 24%, transparent);
}
.search-box { position: relative; margin-bottom: 13px; }
.search-box svg { position: absolute; width: 18px; left: 13px; top: 12px; fill: none; stroke: var(--muted); stroke-width: 2; }
.search-box input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 17px;
  padding: 11px 12px 11px 39px;
  background: rgba(255,255,255,.58);
  outline: none;
}
.search-box input:focus { border-color: var(--accent); }
.session-list { flex: 1; min-height: 0; overflow-y: auto; padding: 2px 3px 12px 0; scrollbar-width: thin; }
.session-item {
  width: 100%;
  display: grid;
  grid-template-columns: 42px minmax(0,1fr) auto;
  gap: 10px;
  align-items: center;
  margin: 0 0 9px;
  padding: 11px;
  border: 1px solid transparent;
  border-radius: 20px;
  background: transparent;
  cursor: pointer;
  text-align: left;
  transition: .16s ease;
}
.session-item:hover { background: rgba(255,255,255,.46); }
.session-item.active { background: rgba(255,255,255,.78); border-color: var(--line); box-shadow: var(--small-shadow); }
.session-icon { width: 42px; height: 42px; display: grid; place-items: center; border-radius: 16px; background: var(--accent-soft); font-size: 17px; }
.session-main { min-width: 0; }
.session-name { font-size: 13px; font-weight: 900; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.session-preview { margin-top: 4px; color: var(--muted); font-size: 11px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.session-meta { align-self: start; color: var(--subtle); font-size: 9px; }
.session-empty { padding: 30px 10px; color: var(--muted); font-size: 13px; line-height: 1.6; text-align: center; }
.sidebar-foot { display: flex; justify-content: space-between; align-items: center; gap: 12px; padding: 11px 5px 0; border-top: 1px solid var(--line); }
.connection-line { display: flex; align-items: center; gap: 7px; color: var(--muted); font-size: 11px; }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: #d8a04c; box-shadow: 0 0 0 4px rgba(216,160,76,.13); }
.status-dot.online { background: var(--success); box-shadow: 0 0 0 4px color-mix(in srgb, var(--success) 15%, transparent); }
.status-dot.offline { background: var(--danger); box-shadow: 0 0 0 4px color-mix(in srgb, var(--danger) 15%, transparent); }

.chat-shell {
  position: relative;
  display: grid;
  grid-template-rows: auto minmax(0,1fr) auto;
}
.topbar {
  position: relative;
  z-index: 15;
  display: flex;
  align-items: center;
  gap: 10px;
  min-height: 73px;
  padding: 12px 15px;
  border-bottom: 1px solid var(--line);
  background: color-mix(in srgb, var(--card-solid) 65%, transparent);
}
.round-button, .composer-icon, .send-button, .stop-button {
  flex: 0 0 auto;
  display: grid;
  place-items: center;
  border: 0;
  cursor: pointer;
}
.round-button {
  width: 41px; height: 41px;
  border-radius: 50%;
  background: rgba(255,255,255,.67);
  box-shadow: 0 7px 20px rgba(77,69,61,.08);
}
.round-button svg, .composer-icon svg, .send-button svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.title-block { min-width: 0; flex: 1; }
.session-title { display: block; max-width: 100%; padding: 0; border: 0; background: transparent; font-size: 16px; font-weight: 950; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; cursor: pointer; }
.session-subtitle { display: flex; align-items: center; min-width: 0; margin-top: 4px; color: var(--muted); font-size: 10px; }
.session-subtitle span { white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.separator { margin: 0 5px; opacity: .55; }
.model-picker {
  display: flex; align-items: center; gap: 7px;
  max-width: 170px;
  padding: 8px 10px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(255,255,255,.66);
}
.model-online-dot { width: 8px; height: 8px; border-radius: 50%; background: #76cb77; box-shadow: 0 0 0 3px rgba(118,203,119,.16); }
.model-picker select { min-width: 0; max-width: 130px; border: 0; outline: none; background: transparent; font-size: 11px; font-weight: 850; cursor: pointer; }

.messages {
  position: relative;
  min-height: 0;
  overflow-y: auto;
  overscroll-behavior: contain;
  padding: 28px 22px 190px;
  scroll-behavior: smooth;
}
.empty-state { max-width: 440px; margin: 14vh auto 0; text-align: center; color: var(--muted); }
.empty-sparkle { width: 62px; height: 62px; display: grid; place-items: center; margin: 0 auto 14px; border-radius: 23px; color: var(--accent); background: var(--accent-soft); font-size: 28px; box-shadow: var(--small-shadow); }
.empty-state h2 { margin: 0 0 8px; color: var(--ink); font-size: 23px; letter-spacing: -.035em; }
.empty-state p { margin: 0; line-height: 1.7; font-size: 13px; }
.day-chip { width: max-content; margin: 0 auto 20px; padding: 6px 12px; border-radius: 999px; background: rgba(255,255,255,.57); color: var(--muted); font-size: 10px; }
.message-row { display: flex; align-items: flex-end; gap: 9px; margin: 13px 0; }
.message-row.user { justify-content: flex-end; }
.message-avatar { width: 32px; height: 32px; flex: 0 0 auto; display: grid; place-items: center; border-radius: 13px; background: var(--accent-soft); color: var(--accent-deep); font-size: 13px; font-weight: 950; }
.message-bubble {
  max-width: min(78%, 720px);
  padding: 13px 15px 10px;
  border: 1px solid rgba(255,255,255,.73);
  border-radius: 23px;
  background: var(--assistant-bubble);
  box-shadow: var(--small-shadow);
}
.message-row.user .message-bubble { border-bottom-right-radius: 7px; background: var(--user-bubble); }
.message-row.assistant .message-bubble { border-bottom-left-radius: 7px; }
.message-text { white-space: pre-wrap; overflow-wrap: anywhere; font-size: 14px; line-height: 1.62; }
.message-text code { padding: 2px 5px; border-radius: 6px; background: rgba(0,0,0,.055); font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: .9em; }
.message-text pre { max-width: 100%; overflow-x: auto; margin: 10px 0 3px; padding: 12px; border-radius: 13px; background: #282a31; color: #f2f3f5; white-space: pre; font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace; font-size: 12px; line-height: 1.5; }
.message-foot { display: flex; justify-content: flex-end; align-items: center; gap: 7px; margin-top: 7px; color: var(--subtle); font-size: 9px; }
.model-tag { padding: 2px 6px; border-radius: 999px; background: rgba(0,0,0,.04); }
.thinking-card, .tool-card, .error-card, .status-card-message {
  width: min(86%, 760px);
  margin: 12px auto;
  border: 1px solid rgba(255,255,255,.75);
  border-radius: 21px;
  box-shadow: 0 8px 20px rgba(77,69,61,.07);
  overflow: hidden;
}
.thinking-card { background: var(--thinking); }
.tool-card { background: var(--tool); }
.error-card { padding: 13px 15px; background: var(--error); color: color-mix(in srgb, var(--danger) 80%, var(--ink)); }
.status-card-message { padding: 10px 14px; background: rgba(255,255,255,.62); color: var(--muted); font-size: 12px; }
.thinking-card summary, .tool-card summary { display: flex; align-items: center; gap: 8px; padding: 12px 14px; cursor: pointer; list-style: none; font-size: 12px; font-weight: 900; }
.thinking-card summary::-webkit-details-marker, .tool-card summary::-webkit-details-marker { display: none; }
.thinking-card summary::after, .tool-card summary::after { content: "⌄"; margin-left: auto; transition: transform .18s; }
.thinking-card[open] summary::after, .tool-card[open] summary::after { transform: rotate(180deg); }
.thinking-content, .tool-content { padding: 0 14px 13px; color: color-mix(in srgb, var(--ink) 82%, var(--muted)); white-space: pre-wrap; overflow-wrap: anywhere; font-size: 12px; line-height: 1.6; }
.tool-content pre { max-height: 260px; overflow: auto; margin: 8px 0 0; padding: 10px; border-radius: 12px; background: rgba(255,255,255,.52); white-space: pre-wrap; font-size: 10px; }
.thinking-orbit { display: inline-flex; gap: 3px; }
.thinking-orbit i { width: 5px; height: 5px; border-radius: 50%; background: #a58bd8; animation: dotPulse 1.15s infinite; }
.thinking-orbit i:nth-child(2) { animation-delay: .16s; }.thinking-orbit i:nth-child(3) { animation-delay: .32s; }

.composer {
  position: absolute;
  z-index: 20;
  left: 14px; right: 14px; bottom: 14px;
  display: flex;
  align-items: flex-end;
  gap: 8px;
  padding: 9px;
  border: 1px solid rgba(255,255,255,.82);
  border-radius: 27px;
  background: var(--panel);
  box-shadow: 0 14px 38px rgba(64,57,51,.16);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
}
.composer textarea {
  min-width: 0;
  flex: 1;
  max-height: 145px;
  resize: none;
  border: 0;
  outline: none;
  padding: 10px 5px 9px;
  background: transparent;
  line-height: 1.45;
}
.composer-icon { width: 42px; height: 42px; border-radius: 50%; background: rgba(255,255,255,.64); color: var(--muted); }
.send-button, .stop-button { width: 45px; height: 45px; border-radius: 50%; color: #fff; }
.send-button { background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 77%, white), var(--accent-deep)); box-shadow: 0 9px 22px color-mix(in srgb, var(--accent) 28%, transparent); }
.stop-button { background: var(--danger); font-size: 15px; }
.send-button:disabled, .composer-icon:disabled { opacity: .48; cursor: not-allowed; }
.attachment-tray {
  position: absolute;
  z-index: 21;
  left: 22px; right: 22px; bottom: 82px;
  display: flex;
  gap: 7px;
  overflow-x: auto;
  padding: 5px 2px;
}
.attachment-chip { display: flex; align-items: center; gap: 7px; max-width: 230px; padding: 7px 9px 7px 11px; border: 1px solid var(--line); border-radius: 15px; background: var(--panel); box-shadow: var(--small-shadow); font-size: 10px; }
.attachment-chip span { overflow: hidden; white-space: nowrap; text-overflow: ellipsis; }
.attachment-chip button { border: 0; background: transparent; color: var(--muted); cursor: pointer; }
.uploading-chip { opacity: .7; }

.mascot-stage { position: absolute; z-index: 8; right: 19px; bottom: 90px; width: 158px; height: 150px; pointer-events: none; transition: opacity .2s; }
.dog-mascot, .crab-mascot { position: absolute; border: 0; padding: 0; background: transparent; cursor: pointer; pointer-events: auto; filter: drop-shadow(0 12px 16px rgba(69,92,102,.16)); }
.dog-mascot { right: 0; bottom: 0; width: 112px; height: 112px; animation: dogBob 3.25s ease-in-out infinite; }
.dog-mascot svg, .crab-mascot svg { width: 100%; height: 100%; overflow: visible; }
.dog-body, .dog-ear, .dog-tail path, .dog-paw { fill: var(--mascot-fur); stroke: var(--mascot-line); stroke-width: 3.2; stroke-linecap: round; stroke-linejoin: round; }
.dog-eye ellipse, .dog-nose { fill: var(--ink); stroke: var(--ink); }
.dog-smile { fill: #ff8c93; }
.dog-cheek { fill: #ffb7c7; opacity: .72; }
.dog-shadow { fill: #6ea8b7; opacity: .15; }
.dog-leaf { fill: #96d67c; stroke: #6eb054; stroke-width: 2; }
.dog-tail { transform-origin: 105px 95px; animation: tailWag .68s ease-in-out infinite alternate; }
.dog-ear-left { transform-origin: 43px 42px; animation: earTwitch 4.7s ease-in-out infinite; }
.dog-eye { transform-origin: center; animation: blink 4.05s infinite; }
.dog-mascot.happy { animation: dogJump .58s cubic-bezier(.2,.8,.2,1); }
.dog-mascot.resting { animation-duration: 5.2s; opacity: .86; }
.crab-mascot { left: 1px; bottom: 5px; width: 69px; height: 69px; animation: crabWalk 4.2s ease-in-out infinite; }
.crab-body, .crab-claw path { fill: var(--crab); stroke: var(--crab-deep); stroke-width: 2.4; }
.crab-belly { fill: #ffc0b5; opacity: .82; }
.crab-leg, .crab-stem { fill: none; stroke: var(--crab-deep); stroke-width: 3.4; stroke-linecap: round; }
.crab-eye circle:first-child { fill: #fff; stroke: var(--crab-deep); stroke-width: 2.2; }.crab-eye .pupil { fill: var(--ink); stroke: none; }
.crab-mouth { fill: none; stroke: #753f3f; stroke-width: 2.6; stroke-linecap: round; }
.crab-claw-left { transform-origin: 23px 36px; animation: clawWave .78s ease-in-out infinite alternate; }.crab-claw-right { transform-origin: 69px 36px; animation: clawWave .78s .22s ease-in-out infinite alternate; }
.crab-eye { transform-origin: center; animation: blink 3.65s infinite; }
.crab-mascot.pinched { animation: crabPop .48s ease; }
.crab-mascot.busy { animation: crabBusy 1.2s ease-in-out infinite; }
.tool-hat { position: absolute; display: none; left: 26px; top: -5px; font-size: 23px; transform: rotate(-7deg); }
.crab-mascot.tooling .tool-hat { display: block; animation: hatBob .8s ease-in-out infinite alternate; }
.mascot-speech { position: absolute; right: 63px; bottom: 113px; max-width: 150px; padding: 7px 10px; border-radius: 14px; background: rgba(255,255,255,.94); box-shadow: var(--small-shadow); font-size: 10px; white-space: nowrap; opacity: 0; transform: translateY(6px); transition: .18s; }
.mascot-speech.show { opacity: 1; transform: none; }
.decorations { position: absolute; inset: 0; overflow: hidden; pointer-events: none; border-radius: inherit; }
.doodle { position: absolute; color: var(--accent); opacity: 0; font-size: 38px; font-weight: 900; filter: drop-shadow(0 3px 0 rgba(255,255,255,.8)); }
body[data-theme="waves"] .doodle { opacity: .22; }
.doodle-star { left: 4%; top: 15%; transform: rotate(-10deg); }.doodle-wave { right: 5%; top: 31%; transform: rotate(11deg); }.doodle-sun { left: 5%; bottom: 24%; transform: rotate(7deg); }.doodle-note { right: 18%; bottom: 17%; transform: rotate(-9deg); }

.sheet-backdrop { position: fixed; z-index: 100; inset: 0; display: none; align-items: flex-end; justify-content: center; padding: 18px; background: rgba(35,42,47,.28); -webkit-backdrop-filter: blur(7px); backdrop-filter: blur(7px); }
.sheet-backdrop.open { display: flex; }
.bottom-sheet, .permission-card, .prompt-card { width: min(540px, 100%); border: 1px solid rgba(255,255,255,.88); border-radius: 28px; background: var(--panel); box-shadow: var(--shadow); }
.bottom-sheet { max-height: min(86dvh, 740px); overflow-y: auto; padding: 12px 19px 20px; }
.sheet-handle { width: 44px; height: 5px; margin: 0 auto 8px; border-radius: 999px; background: var(--line-strong); }
.sheet-head { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.sheet-head h2, .permission-card h2, .prompt-card h2 { margin: 4px 0 12px; font-size: 20px; letter-spacing: -.035em; }
.setting-row { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 15px 2px; border-top: 1px solid var(--line); }
.setting-row p { margin: 4px 0 0; color: var(--muted); font-size: 11px; }
.switch input { display: none; }.switch span { position: relative; display: block; width: 46px; height: 27px; border-radius: 999px; background: var(--line-strong); transition: .18s; cursor: pointer; }.switch span::after { content: ""; position: absolute; width: 21px; height: 21px; left: 3px; top: 3px; border-radius: 50%; background: white; box-shadow: 0 3px 8px rgba(0,0,0,.16); transition: .18s; }.switch input:checked + span { background: var(--accent); }.switch input:checked + span::after { transform: translateX(19px); }
.setting-field { display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 12px; padding: 15px 2px; border-top: 1px solid var(--line); font-weight: 850; }
.setting-field select { border: 1px solid var(--line-strong); border-radius: 13px; padding: 8px 10px; background: rgba(255,255,255,.68); }
.theme-choices { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; padding: 15px 0; border-top: 1px solid var(--line); }
.theme-choices button { display: flex; align-items: center; gap: 10px; min-width: 0; padding: 10px; border: 1px solid var(--line); border-radius: 17px; background: rgba(255,255,255,.55); text-align: left; cursor: pointer; }
.theme-choices button.active { border-color: var(--accent); box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 14%, transparent); }
.theme-choices span:last-child { min-width: 0; }.theme-choices strong, .theme-choices small { display: block; }.theme-choices small { margin-top: 3px; color: var(--muted); font-size: 9px; }
.theme-swatch { width: 35px; height: 35px; flex: 0 0 auto; border-radius: 12px; border: 2px solid white; box-shadow: 0 4px 9px rgba(0,0,0,.1); }.nest-swatch { background: linear-gradient(135deg,#efe6dc,#fffaf5,#d8c1b5); }.waves-swatch { background: linear-gradient(135deg,#bfefff,#fff2b3,#cdf4dc); }
.sheet-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 8px; padding-top: 2px; }.sheet-actions .danger-button { grid-column: 1/-1; }
.status-card { margin-top: 13px; padding: 12px; border-radius: 16px; background: rgba(255,255,255,.49); color: var(--muted); font-size: 10px; line-height: 1.55; white-space: pre-wrap; }
.permission-card { padding: 21px; }
.permission-icon { width: 44px; height: 44px; display: grid; place-items: center; float: left; margin: 0 12px 8px 0; border-radius: 16px; background: var(--tool); color: var(--accent-deep); font-size: 23px; font-weight: 950; }
.risk-badge { display: inline-block; margin-top: 1px; padding: 4px 8px; border-radius: 999px; background: var(--tool); color: var(--accent-deep); font-size: 9px; font-weight: 900; }.risk-badge.high { background: var(--error); color: var(--danger); }
.permission-card p { clear: both; color: var(--muted); line-height: 1.55; font-size: 12px; }
.permission-card pre { max-height: 250px; overflow: auto; padding: 12px; border-radius: 15px; background: #282a31; color: #f4f4f5; white-space: pre-wrap; overflow-wrap: anywhere; font-size: 10px; line-height: 1.5; }
.permission-note { font-size: 10px !important; }
.permission-actions, .prompt-actions { display: grid; grid-template-columns: 1fr 1fr; gap: 9px; margin-top: 16px; }
.prompt-card { padding: 21px; }.prompt-card input { width: 100%; }
.toast { position: fixed; z-index: 140; left: 50%; bottom: max(22px, env(safe-area-inset-bottom)); max-width: min(88vw, 460px); transform: translate(-50%, 20px); padding: 10px 14px; border-radius: 15px; background: rgba(31,35,39,.92); color: white; box-shadow: 0 12px 30px rgba(0,0,0,.2); font-size: 12px; opacity: 0; pointer-events: none; transition: .18s; }.toast.show { opacity: 1; transform: translate(-50%, 0); }
.drawer-scrim { display: none; }

@keyframes loginBob { 0%,100% { transform: translateY(0) rotate(-.5deg); } 50% { transform: translateY(-6px) rotate(.5deg); } }
@keyframes dotPulse { 0%,100% { transform: scale(.7); opacity: .4; } 50% { transform: scale(1.15); opacity: 1; } }
@keyframes dogBob { 0%,100% { transform: translateY(0) rotate(-1deg); } 50% { transform: translateY(-5px) rotate(1deg); } }
@keyframes dogJump { 0% { transform: translateY(0) scale(1); } 45% { transform: translateY(-25px) scale(1.07,.94); } 100% { transform: translateY(0) scale(1); } }
@keyframes tailWag { from { transform: rotate(-19deg); } to { transform: rotate(23deg); } }
@keyframes earTwitch { 0%,88%,100% { transform: rotate(0); } 91% { transform: rotate(-12deg); } 95% { transform: rotate(8deg); } }
@keyframes blink { 0%,93%,100% { transform: scaleY(1); } 95%,97% { transform: scaleY(.08); } }
@keyframes crabWalk { 0%,100% { transform: translateX(0) rotate(-1deg); } 50% { transform: translateX(13px) rotate(1deg); } }
@keyframes crabPop { 0% { transform: scale(1); } 50% { transform: scale(.73) rotate(9deg); } 100% { transform: scale(1); } }
@keyframes crabBusy { 0%,100% { transform: translateX(0) translateY(0); } 25% { transform: translateX(12px) translateY(-2px); } 50% { transform: translateX(4px) translateY(0); } 75% { transform: translateX(16px) translateY(-2px); } }
@keyframes clawWave { from { transform: rotate(-9deg); } to { transform: rotate(13deg); } }
@keyframes hatBob { from { transform: translateY(0) rotate(-8deg); } to { transform: translateY(-3px) rotate(-2deg); } }

@media (max-width: 820px) {
  .mobile-only { display: grid !important; }
  .app-view { display: block; padding: 0; }
  .chat-shell { width: 100%; height: 100dvh; border-radius: 0; border: 0; }
  .sidebar { position: fixed; z-index: 80; left: 0; top: 0; bottom: 0; width: min(88vw, 345px); border-radius: 0 31px 31px 0; transform: translateX(-105%); transition: transform .22s ease; }
  .sidebar.open { transform: none; }
  .drawer-scrim { position: fixed; z-index: 75; inset: 0; background: rgba(30,39,44,.25); -webkit-backdrop-filter: blur(4px); backdrop-filter: blur(4px); }
  .drawer-scrim.open { display: block; }
  .topbar { padding-top: max(11px, env(safe-area-inset-top)); }
  .model-picker { max-width: 132px; padding: 7px 8px; }
  .model-picker select { max-width: 96px; }
  .messages { padding: 22px 13px 180px; }
  .message-bubble { max-width: 84%; }
  .thinking-card, .tool-card, .error-card, .status-card-message { width: 94%; }
  .composer { bottom: max(9px, env(safe-area-inset-bottom)); left: 9px; right: 9px; }
  .attachment-tray { bottom: calc(76px + env(safe-area-inset-bottom)); left: 12px; right: 12px; }
  .mascot-stage { right: 7px; bottom: calc(83px + env(safe-area-inset-bottom)); transform: scale(.86); transform-origin: bottom right; }
  .theme-choices { grid-template-columns: 1fr; }
}

@media (max-width: 430px) {
  .topbar { gap: 6px; padding-left: 8px; padding-right: 8px; }
  .round-button { width: 38px; height: 38px; }
  .session-title { font-size: 14px; }
  .session-subtitle { font-size: 9px; }
  .model-picker { max-width: 115px; }
  .model-online-dot { display: none; }
  .model-picker select { max-width: 94px; }
  .message-text { font-size: 13.5px; }
  .mascot-stage { transform: scale(.78); right: 2px; }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; animation-iteration-count: 1 !important; scroll-behavior: auto !important; }
}