Implement code word based remote authentication (#1)

Add comprehensive remote authentication system allowing users to log in from one device by authenticating from another trusted device. Features include:

- Proof of Work (PoW) protection using PBKDF2-SHA512 to prevent abuse
- Simple pairing codes (3 words) protected by dynamic PoW difficulty
- Autocomplete pairing code input with error checking
- Real-time WebSocket communication between devices

Unlike device addition links and reset links with QR codes that only allow adding an authentication method, and that work offline over the duration of several days, this mechanism is strictly online, with 5 minute time limit.
This commit is contained in:
2025-12-08 23:56:48 +00:00
parent 83419d1845
commit 1bed2c39d8
57 changed files with 3668 additions and 503 deletions
@@ -0,0 +1,894 @@
<template>
<div class="pairing-entry">
<form @submit.prevent="submitCode" class="pairing-form">
<!-- Code input (shown when device info not yet received) -->
<div v-if="!deviceInfo" class="input-row">
<div class="input-wrapper" :class="{ 'has-error': serverError, 'is-complete': deviceInfo && !serverError, 'focused': isFocused }">
<!-- Visual slot-machine display overlay -->
<div class="slot-machine" :class="{ 'has-error': serverError, 'is-complete': deviceInfo && !serverError }" aria-hidden="true">
<div v-for="(word, index) in displayWords" :key="index" class="slot-reel" :class="{ 'invalid-word': word.invalid, 'empty': !word.text && !word.typedPrefix }">
<div class="slot-word">
<template v-if="word.typedPrefix">
<span class="typed-prefix">{{ word.typedPrefix }}</span><span class="hint-suffix">{{ word.hintSuffix }}</span>
<span v-if="word.hasCursor" class="cursor-overlay" :style="{ '--cursor-pos': word.cursorCharIndex, '--word-len': word.wordLen }"></span>
</template>
<template v-else-if="word.text">
{{ word.text }}
<span v-if="word.hasCursor" class="cursor-overlay" :style="{ '--cursor-pos': word.cursorCharIndex, '--word-len': word.wordLen }"></span>
</template>
<template v-else>
<span v-if="word.hasCursor" class="cursor-overlay" :style="{ '--cursor-pos': 0, '--word-len': 0 }"></span>
</template>
</div>
</div>
</div>
<!-- Hidden input for actual text entry -->
<input
ref="inputRef"
v-model="code"
type="text"
:placeholder="placeholder"
autocomplete="off"
autocapitalize="none"
autocorrect="off"
spellcheck="false"
class="pairing-input hidden-input"
@input="handleInput"
@keydown="deferUpdateCursor"
@mouseup="updateCursorPos"
@focus="isFocused = true"
@blur="isFocused = false"
/>
</div>
<!-- Processing status beside input -->
<div v-if="processingStatus" class="processing-status">
<span class="processing-icon">{{ processingStatus === 'pow' ? '🔐' : '📡' }}</span>
<span class="processing-spinner-small"></span>
</div>
</div>
<!-- Device info display (shown when 3 words match a request) -->
<div v-else-if="deviceInfo" class="device-info">
<p class="device-permit-text">Permit {{ deviceInfo.action === 'register' ? 'registration' : 'login' }} to <strong>{{ deviceInfo.host }}</strong></p>
<p class="device-meta">{{ deviceInfo.user_agent_pretty }}</p>
<p v-if="error" class="error-message" style="margin-top: 0.5rem;">{{ error }}</p>
<div class="button-row" style="margin-top: 0.75rem; display: flex; gap: 0.5rem;">
<button
type="button"
class="btn-secondary"
:disabled="loading"
@click="deny"
style="flex: 1;"
>
Deny
</button>
<button
ref="submitBtnRef"
type="submit"
:disabled="loading"
class="btn-primary"
style="flex: 1;"
>
{{ loading ? 'Authenticating…' : 'Authorize' }}
</button>
</div>
</div>
<p v-if="error && !deviceInfo" class="error-message">{{ error }}</p>
</form>
</div>
</template>
<script setup>
import { computed, nextTick, onMounted, onUnmounted, ref, watch } from 'vue'
import { startAuthentication } from '@simplewebauthn/browser'
import aWebSocket from '@/utils/awaitable-websocket'
import { dec as b64dec, enc as b64enc } from '@/utils/base64url'
import { getSettings } from '@/utils/settings'
import { getUniqueMatch, isValidWord, isValidPrefix } from '@/utils/wordlist'
import { solvePoW } from '@/utils/pow'
import { useAuthStore } from '@/stores/auth'
const props = defineProps({
title: { type: String, default: 'Help Another Device Sign In' },
description: { type: String, default: 'Enter the code shown on the device that needs to sign in.' },
placeholder: { type: String, default: 'Enter three words' },
action: { type: String, default: 'login' } // 'login' or 'register'
})
const emit = defineEmits(['completed', 'error', 'cancelled', 'back', 'register', 'deviceInfoVisible'])
// State
const loading = ref(false)
const error = ref(null)
const settings = ref(null)
let ws = null
let authStore = null
// Try to get authStore (might fail if Pinia not installed in this app instance)
try { authStore = useAuthStore() } catch (e) { /* ignore */ }
const inputRef = ref(null)
const submitBtnRef = ref(null)
const code = ref('')
const isProcessing = ref(false)
const processingStatus = ref('')
const deviceInfo = ref(null)
const autocompleteHint = ref('')
// Watch deviceInfo and emit visibility change
watch(deviceInfo, (newVal) => {
emit('deviceInfoVisible', !!newVal)
})
const hasInvalidWord = ref(false)
const serverError = ref(false)
const cursorPos = ref(0)
const isFocused = ref(false)
let wsConnecting = false
let currentChallenge = null
let currentWork = null
let powPromise = null
let powSolution = null
let lookupTimeout = null
let lastLookedUpCode = null
// --- Helpers ---
function showMessage(message, type = 'info', duration = 3000) {
if (authStore) {
authStore.showMessage(message, type, duration)
}
}
async function fetchSettings() {
try {
const data = await getSettings()
settings.value = data
} catch (err) {
console.warn('Unable to load settings', err)
}
}
// --- Input Mode Logic ---
function getWordAtCursor(input, cursor) {
if (!input || cursor < 0) return { word: '', start: 0, end: 0 }
let start = cursor, end = cursor
while (start > 0 && /[a-zA-Z]/.test(input[start - 1])) start--
while (end < input.length && /[a-zA-Z]/.test(input[end])) end++
return { word: input.slice(start, end), start, end }
}
function getWords(input) {
return input.trim().split(/[.\s]+/).filter(w => w.length > 0)
}
function countCompleteWords(input) {
const endsWithSeparator = /[.\s]$/.test(input)
const words = getWords(input)
return endsWithSeparator ? words.length : Math.max(0, words.length - 1)
}
function analyzeWords(input) {
if (!input) return { valid: true, segments: [] }
const segments = []
const endsWithSeparator = /[.\s]$/.test(input)
let match, regex = /([a-zA-Z]+)|([.\s]+)/g
while ((match = regex.exec(input)) !== null) {
if (match[1]) segments.push({ text: match[1], isWord: true, start: match.index })
else if (match[2]) segments.push({ text: match[2], isWord: false, start: match.index })
}
const words = segments.filter(s => s.isWord)
let allValid = true
words.forEach((wordSeg, idx) => {
const isLastWord = idx === words.length - 1
const word = wordSeg.text.toLowerCase()
if (isLastWord && !endsWithSeparator) wordSeg.invalid = !isValidPrefix(word)
else wordSeg.invalid = !isValidWord(word)
if (wordSeg.invalid) allValid = false
})
return { valid: allValid, segments }
}
const coloredSegments = computed(() => {
const { segments } = analyzeWords(code.value)
return segments.map(s => ({ text: s.text, invalid: s.invalid || false }))
})
function checkWordsValidity(input) { return analyzeWords(input).valid }
function allWordsValid(input) { return getWords(input).length > 0 && getWords(input).every(w => isValidWord(w)) }
// Get the current partial word being typed (not yet a complete word)
function getCurrentPartialWord(input) {
const endsWithSeparator = /[.\s]$/.test(input)
if (endsWithSeparator) return ''
const match = input.match(/[a-zA-Z]+$/)
return match ? match[0].toLowerCase() : ''
}
// Calculate cursor position in the normalized display (wordIndex, charIndex within word)
// Returns { wordIndex: number, charIndex: number } where charIndex is position within the word text
function calcDisplayCursor(input, rawCursorPos) {
if (!input || rawCursorPos === 0) {
return { wordIndex: 0, charIndex: 0 }
}
// Parse input to find word boundaries
const beforeCursor = input.slice(0, rawCursorPos)
const wordMatches = [...beforeCursor.matchAll(/[a-zA-Z]+/g)]
// Check if cursor is in whitespace after words
const endsWithSeparator = /[.\s]$/.test(beforeCursor)
if (wordMatches.length === 0) {
// No words before cursor, cursor is at start of first word
return { wordIndex: 0, charIndex: 0 }
}
const lastMatch = wordMatches[wordMatches.length - 1]
const lastMatchEnd = lastMatch.index + lastMatch[0].length
if (endsWithSeparator || rawCursorPos > lastMatchEnd) {
// Cursor is after the last word (in whitespace), so it's at start of next word
return { wordIndex: Math.min(wordMatches.length, 2), charIndex: 0 }
}
// Cursor is within the last word
const charIndex = rawCursorPos - lastMatch.index
return { wordIndex: wordMatches.length - 1, charIndex: charIndex }
}
// Compute display words for slot-machine overlay (always 3 slots)
const displayWords = computed(() => {
const words = getWords(code.value)
const result = []
// Get analysis for validation
const { segments } = analyzeWords(code.value)
const wordSegments = segments.filter(s => s.isWord)
// Get current partial word and autocomplete hint
const partialWord = getCurrentPartialWord(code.value)
const hint = autocompleteHint.value
const endsWithSeparator = /[.\s]$/.test(code.value)
// Calculate where cursor should be displayed
const cursor = calcDisplayCursor(code.value, cursorPos.value)
// Always show exactly 3 slots
for (let i = 0; i < 3; i++) {
const isCursorSlot = cursor.wordIndex === i
if (i < words.length) {
const word = words[i].toLowerCase()
const isInvalid = wordSegments[i]?.invalid || false
const isLastWord = i === words.length - 1
if (isLastWord && !endsWithSeparator && hint && partialWord) {
// Show typed prefix + hint suffix in the same slot
// Total visible length is the full hint word
const totalLen = hint.length
result.push({
text: '',
typedPrefix: partialWord,
hintSuffix: hint.slice(partialWord.length),
invalid: isInvalid,
hasCursor: isCursorSlot,
cursorCharIndex: isCursorSlot ? cursor.charIndex : -1,
wordLen: totalLen
})
} else {
// Complete word - show cursor at appropriate position
result.push({
text: word,
invalid: isInvalid,
hasCursor: isCursorSlot,
cursorCharIndex: isCursorSlot ? cursor.charIndex : -1,
wordLen: word.length
})
}
} else {
// Empty slot
result.push({
text: '',
invalid: false,
hasCursor: isCursorSlot,
cursorCharIndex: 0,
wordLen: 0
})
}
}
return result
})
const hasThreeValidWords = computed(() => {
const words = getWords(code.value)
return words.length === 3 && words.every(w => isValidWord(w))
})
function normalizeCode(input) {
return input.trim().toLowerCase().split(/[.\s]+/).filter(w => w).join('.')
}
function startPowSolving() {
if (!currentChallenge || powPromise) return
const challenge = b64dec(currentChallenge)
powPromise = solvePoW(challenge, currentWork).then(solution => {
powSolution = solution
powPromise = null
})
}
async function getPowSolution() {
if (powSolution) { const s = powSolution; powSolution = null; return s }
if (powPromise) { await powPromise; const s = powSolution; powSolution = null; return s }
if (!currentChallenge) throw new Error('No PoW challenge available')
const challenge = b64dec(currentChallenge)
return await solvePoW(challenge, currentWork)
}
function updateChallenge(pow) {
if (pow?.challenge) {
currentChallenge = pow.challenge
currentWork = pow.work
powSolution = null
powPromise = null
startPowSolving()
}
}
async function ensureConnection() {
if (ws || wsConnecting) return
wsConnecting = true
try {
const authHost = settings.value?.auth_host
const wsPath = '/auth/ws/remote-auth/pair'
const wsUrl = authHost && location.host !== authHost ? `//${authHost}${wsPath}` : wsPath
ws = await aWebSocket(wsUrl)
const msg = await ws.receive_json()
if (msg.status && msg.detail) throw new Error(msg.detail)
if (!msg.pow?.challenge) throw new Error('Server did not send PoW challenge')
updateChallenge(msg.pow)
} catch (err) {
console.error('WebSocket connection error:', err)
ws = null
throw err
} finally {
wsConnecting = false
}
}
// Defer cursor position update to after browser processes the key
function deferUpdateCursor(event) {
// Handle Tab/Space for autocomplete immediately
if (event.key === 'Tab' || event.key === ' ') {
handleKeydown(event)
return
}
// Defer cursor update to next tick
setTimeout(updateCursorPos, 0)
}
// Update cursor position from input
function updateCursorPos() {
cursorPos.value = inputRef.value?.selectionStart ?? code.value.length
}
function updateAutocomplete() {
cursorPos.value = inputRef.value?.selectionStart ?? code.value.length
const { word, end } = getWordAtCursor(code.value, cursorPos.value)
const completeWordCount = countCompleteWords(code.value)
if (completeWordCount >= 3 || !word || word.length < 1 || cursorPos.value !== end) {
autocompleteHint.value = ''
return
}
const match = getUniqueMatch(word.toLowerCase())
if (match && match !== word.toLowerCase()) autocompleteHint.value = match
else autocompleteHint.value = ''
}
function applyAutocomplete() {
if (!autocompleteHint.value) return false
const { word, start, end } = getWordAtCursor(code.value, cursorPos.value)
if (!word) return false
const before = code.value.slice(0, start)
const wordsBefore = getWords(before).length
const isThirdWord = wordsBefore === 2
const suffix = isThirdWord ? '' : ' '
const after = code.value.slice(end)
code.value = before + autocompleteHint.value + suffix + after.trimStart()
const newPos = start + autocompleteHint.value.length + suffix.length
nextTick(() => {
inputRef.value?.setSelectionRange(newPos, newPos)
cursorPos.value = newPos
})
autocompleteHint.value = ''
return true
}
// Try to split concatenated words (e.g., "alienalien" -> "alien alien")
function trySplitWords(input) {
// Only process if there's a continuous string of letters at the end
const match = input.match(/^(.*?)([a-zA-Z]+)$/)
if (!match) return input
const prefix = match[1] // Everything before the letter sequence
const letters = match[2].toLowerCase()
// Try to find valid word boundaries in the letter sequence
const foundWords = []
let remaining = letters
while (remaining.length > 0) {
let foundWord = null
// Try to find the longest valid word from the start
for (let len = Math.min(remaining.length, 6); len >= 3; len--) {
const candidate = remaining.slice(0, len)
if (isValidWord(candidate)) {
foundWord = candidate
break
}
}
if (foundWord) {
foundWords.push(foundWord)
remaining = remaining.slice(foundWord.length)
// Stop after 3 words
if (foundWords.length >= 3) {
remaining = ''
break
}
} else {
// No valid word found, keep the remaining as-is
foundWords.push(remaining)
break
}
}
// Only return split version if we found at least one complete word
// and there's a clear boundary (more than one segment, or the segment is a complete word)
if (foundWords.length > 1 || (foundWords.length === 1 && isValidWord(foundWords[0]) && remaining === '')) {
return prefix + foundWords.join(' ')
}
return input
}
function handleInput() {
// Immediately update cursor position
cursorPos.value = inputRef.value?.selectionStart ?? code.value.length
// First, try to auto-split concatenated words
const splitCode = trySplitWords(code.value)
if (splitCode !== code.value) {
code.value = splitCode
nextTick(() => {
const newLen = splitCode.length
inputRef.value?.setSelectionRange(newLen, newLen)
cursorPos.value = newLen
})
}
const words = getWords(code.value)
if (words.length >= 3) {
const normalized = words.slice(0, 3).join(' ')
if (code.value !== normalized) {
const cursorWasAtEnd = cursorPos.value >= code.value.length
code.value = normalized
if (cursorWasAtEnd) {
nextTick(() => {
inputRef.value?.setSelectionRange(normalized.length, normalized.length)
cursorPos.value = normalized.length
})
}
}
}
updateAutocomplete()
if (lookupTimeout) { clearTimeout(lookupTimeout); lookupTimeout = null }
deviceInfo.value = null
error.value = null
serverError.value = false
hasInvalidWord.value = !checkWordsValidity(code.value)
const currentWords = getWords(code.value)
if (currentWords.length >= 1 && !ws && !wsConnecting) ensureConnection()
if (currentWords.length === 3) {
if (!allWordsValid(code.value)) return
lookupTimeout = setTimeout(() => { lookupDeviceInfo() }, 150)
}
}
async function lookupDeviceInfo() {
if (isProcessing.value || loading.value) return
if (!hasThreeValidWords.value) return
const normalizedCode = normalizeCode(code.value)
if (normalizedCode === lastLookedUpCode && deviceInfo.value) return
isProcessing.value = true
processingStatus.value = 'pow'
error.value = null
serverError.value = false
try {
await ensureConnection()
if (!ws) throw new Error('Failed to connect')
const solution = await getPowSolution()
const powB64 = b64enc(solution)
const currentCode = normalizeCode(code.value)
if (!hasThreeValidWords.value) return
processingStatus.value = 'server'
ws.send_json({ code: currentCode, pow: powB64 })
const res = await ws.receive_json()
updateChallenge(res.pow)
if (typeof res.status === 'number' && res.status >= 400) {
error.value = res.detail || 'Request failed'
serverError.value = true
deviceInfo.value = null
lastLookedUpCode = null
return
}
if (res.status === 'found' && res.host) {
code.value = currentCode.replace(/\./g, ' ')
deviceInfo.value = {
host: res.host,
user_agent_pretty: res.user_agent_pretty,
client_ip: res.client_ip,
action: res.action || 'login'
}
lastLookedUpCode = currentCode
nextTick(() => { submitBtnRef.value?.focus() })
} else {
error.value = 'Unexpected response from server'
serverError.value = true
deviceInfo.value = null
lastLookedUpCode = null
}
} catch (err) {
console.error('Lookup error:', err)
error.value = err.message || 'Lookup failed'
serverError.value = true
deviceInfo.value = null
lastLookedUpCode = null
if (ws) { ws.close(); ws = null }
} finally {
isProcessing.value = false
processingStatus.value = ''
}
}
function handleKeydown(event) {
if (event.key === 'Tab') {
if (autocompleteHint.value) {
const applied = applyAutocomplete()
if (applied) { event.preventDefault(); handleInput(); return }
}
if (code.value.trim()) event.preventDefault()
return
}
if (event.key === ' ' && autocompleteHint.value) {
const applied = applyAutocomplete()
if (applied) { event.preventDefault(); handleInput() }
}
}
async function submitCode() {
if (!deviceInfo.value || loading.value) return
loading.value = true
error.value = null
try {
if (!ws) await ensureConnection()
if (!ws) throw new Error('Failed to connect')
const solution = await getPowSolution()
const powB64 = b64enc(solution)
ws.send_json({ authenticate: true, pow: powB64 })
const res = await ws.receive_json()
if (typeof res.status === 'number' && res.status >= 400) throw new Error(res.detail || 'Authentication failed')
if (!res.optionsJSON) throw new Error(res.detail || 'Failed to get authentication options')
const authResponse = await startAuthentication(res)
ws.send_json(authResponse)
const result = await ws.receive_json()
if (typeof result.status === 'number' && result.status >= 400) throw new Error(result.detail || 'Authentication failed')
if (result.status === 'success') {
showMessage('Device authenticated successfully!', 'success', 3000)
emit('completed')
reset()
} else {
throw new Error(result.detail || 'Authentication failed')
}
} catch (err) {
console.error('Pairing error:', err)
const message = err.name === 'NotAllowedError'
? 'Passkey authentication was cancelled'
: (err.message || 'Authentication failed')
error.value = message
// Don't show toast - error is shown in dialog
emit('error', message)
} finally {
loading.value = false
if (ws) { ws.close(); ws = null }
}
}
async function deny() {
// Send deny message to server before closing websocket
if (ws) {
try {
ws.send_json({ deny: true })
// Give the server a moment to process the denial
await new Promise(resolve => setTimeout(resolve, 100))
} catch (e) {
console.error('Error sending deny message:', e)
}
ws.close()
ws = null
}
// Reset to initial state
reset()
}
function reset() {
code.value = ''
error.value = null
serverError.value = false
deviceInfo.value = null
isProcessing.value = false
processingStatus.value = ''
autocompleteHint.value = ''
hasInvalidWord.value = false
lastLookedUpCode = null
if (ws) { ws.close(); ws = null }
currentChallenge = null
currentWork = null
powPromise = null
powSolution = null
}
// --- Lifecycle ---
onMounted(async () => {
await fetchSettings()
inputRef.value?.focus()
// Initialize cursor position
nextTick(() => {
cursorPos.value = inputRef.value?.selectionStart ?? 0
})
})
onUnmounted(() => {
if (lookupTimeout) { clearTimeout(lookupTimeout); lookupTimeout = null }
if (ws) { ws.close(); ws = null }
})
defineExpose({ reset, deny, code, handleInput, loading, error })
</script>
<style scoped>
/* Input Mode Styles */
.pairing-entry {
display: flex;
flex-direction: column;
gap: 1rem;
}
.pairing-form {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.input-row {
display: flex;
align-items: center;
gap: 0.5rem;
}
.input-wrapper {
position: relative;
display: flex;
width: 280px;
max-width: 100%;
}
/* Slot machine visual display (matches RemoteAuthInline) */
.slot-machine {
position: absolute;
left: 0;
top: 0;
width: 100%;
height: 100%;
padding: 0.875rem 1rem;
background: var(--color-surface-hover, rgba(0, 0, 0, 0.03));
border: 2px solid var(--color-border);
border-radius: var(--radius-sm, 6px);
font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
display: flex;
gap: 0;
align-items: center;
user-select: none;
pointer-events: none;
white-space: nowrap;
overflow: hidden;
box-sizing: border-box;
z-index: 1;
}
.slot-machine.has-error {
border-color: var(--color-error, #ef4444);
background: var(--color-error-bg, rgba(239, 68, 68, 0.05));
}
.slot-machine.is-complete {
border-color: var(--color-success, #10b981);
}
.slot-reel {
display: inline-flex;
align-items: center;
justify-content: center;
flex: 1 1 33.333%;
min-width: 0;
height: 1.8em;
overflow: visible;
position: relative;
border-radius: 3px;
}
.slot-reel:not(:last-child) {
margin-right: 0.5rem;
}
.slot-word {
font-size: 1.25rem;
font-weight: 600;
letter-spacing: 0.05em;
text-align: center;
width: 100%;
color: var(--color-text);
display: flex;
align-items: center;
justify-content: center;
position: relative;
}
.slot-word .typed-prefix {
color: var(--color-text);
}
.slot-word .hint-suffix {
color: var(--color-text-muted);
opacity: 0.6;
}
.cursor-overlay {
position: absolute;
width: 2px;
height: 1.2em;
background: var(--color-text);
animation: none;
pointer-events: none;
/* Position based on character index - calculate from center of slot */
left: calc(50% + (var(--cursor-pos) - var(--word-len, 0) / 2) * 0.65em);
transform: translateX(-1px);
opacity: 0;
}
.input-wrapper.focused .cursor-overlay {
opacity: 1;
animation: cursorBlink 1s ease-in-out infinite;
}
@keyframes cursorBlink {
0%, 49% {
opacity: 1;
}
50%, 100% {
opacity: 0;
}
}
.slot-reel.invalid-word .slot-word {
color: var(--color-error, #ef4444);
}
.slot-reel.invalid-word .slot-word .typed-prefix {
color: var(--color-error, #ef4444);
}
.slot-reel.invalid-word .cursor-overlay {
background: var(--color-error, #ef4444);
}
.slot-reel.empty .slot-word {
color: var(--color-text-muted);
}
/* Hidden input - keeps focus and handles keyboard input */
.pairing-input {
flex: 1;
width: 100%;
height: 100%;
padding: 0.875rem 1rem;
font-size: 1rem;
font-family: inherit;
border: 1px solid transparent;
border-radius: var(--radius-sm, 6px);
background: transparent;
color: transparent;
caret-color: transparent;
outline: none;
box-sizing: border-box;
position: relative;
z-index: 0;
}
.pairing-input.hidden-input {
color: transparent;
caret-color: transparent;
}
.pairing-input:disabled {
cursor: not-allowed;
}
.pairing-input::placeholder {
color: transparent;
}
.processing-status {
display: flex;
align-items: center;
gap: 0.25rem;
font-size: 0.875rem;
color: var(--color-text-muted);
}
.processing-icon {
font-size: 0.875rem;
}
.processing-spinner-small {
width: 12px;
height: 12px;
border: 2px solid var(--color-border);
border-top-color: var(--color-primary);
border-radius: 50%;
animation: spin 0.8s linear infinite;
}
@keyframes spin {
to { transform: rotate(360deg); }
}
.device-info {
display: flex;
flex-direction: column;
gap: 0.5rem;
}
.device-permit-text {
margin: 0;
font-size: 0.95rem;
color: var(--color-text);
}
.device-meta {
margin: 0;
font-size: 0.8rem;
color: var(--color-text-muted);
font-family: 'SF Mono', Monaco, 'Cascadia Code', 'Roboto Mono', Consolas, 'Courier New', monospace;
}
.error-message {
margin: 0;
font-size: 0.875rem;
color: var(--color-error, #ef4444);
margin-bottom: 1rem;
}
</style>