:root { --focus-ring: #67e8f9; --error-text: #fca5a5; --control-bg: #18181b; --action-bg: #047857; --text-muted: #90909c; }
[hidden] { display: none !important; }
button,input,textarea,select { font: inherit; }
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible,summary:focus-visible { outline: 3px solid var(--focus-ring); outline-offset: 4px; }
.talk-brand { color: var(--text-primary); letter-spacing: .16em; font-size: .9rem; font-weight: 800; margin-bottom: 12px; }
.talk-brand span { color: var(--text-secondary); letter-spacing: .02em; font-weight: 400; }
.talk-help { text-align: center; color: var(--text-secondary); font-size: .88rem; line-height: 1.6; }
.text-link { background: none; border: 0; color: var(--error-text); cursor: pointer; }
.ptt-btn { touch-action: none; user-select: none; -webkit-user-select: none; }
.ptt-btn[aria-pressed="true"] { border-color: var(--led-red-glow); }
button:disabled { opacity: .5; cursor: wait; }
.auth-card { max-width: 460px; }
.auth-card h1 { font-size: 1.6rem; margin: 16px 0; }
.stack { display: flex; flex-direction: column; gap: 18px; }
.stack label { display: flex; flex-direction: column; gap: 8px; color: var(--text-secondary); }
.stack input,.stack select { width: 100%; padding: 13px 15px; background: var(--control-bg); border: 1px solid var(--card-border); border-radius: 10px; color: var(--text-primary); }
.action-button { border: 1px solid var(--card-border); border-radius: 12px; padding: 14px; background: var(--action-bg); color: var(--text-primary); font-weight: 600; cursor: pointer; }
.form-error { color: var(--error-text); line-height: 1.5; }
.back-link { color: var(--focus-ring); display: inline-block; margin-top: 16px; }
.admin-section { display: flex; flex-direction: column; gap: 18px; }
.admin-section h2 { font-size: 1.25rem; }
.user-card { border: 1px solid var(--card-border); border-radius: 14px; padding: 18px; display: grid; gap: 12px; }
.user-card p { color: var(--text-secondary); font-size: .9rem; }
summary { cursor: pointer; padding: 8px 0; }
.danger-text { color: var(--error-text); }
.danger-button { border: 1px solid var(--error-text); color: var(--error-text); background: transparent; border-radius: 8px; padding: 10px; cursor: pointer; }
.history-item { flex-direction: column; align-items: stretch; }
.history-item-content { width: 100%; }
.history-actions { flex-wrap: wrap; flex-shrink: 1; }
.history-actions button { background: transparent; color: var(--text-secondary); border: 1px solid var(--card-border); border-radius: 8px; padding: 7px 10px; cursor: pointer; font-size: .8rem; }
.history-item-row { white-space: pre-wrap; overflow-wrap: anywhere; }
.history-time { color: var(--text-secondary); font-size: .72rem; }
.talk-stop { display: block; margin: 12px auto 0; }
@media (prefers-reduced-motion:reduce) { *,*::before,*::after { animation: none !important; transition: none !important; } }
@media(max-width:480px) {
    .app-container { gap: 22px; }
    .manual-input-actions { flex-wrap: wrap; }
    .manual-input-actions > div { display: none; }
    .manual-btn-translate { flex: 1 1 100%; justify-content: center; }
}