.participant-chat {
    position: fixed;
    left: 16px;
    bottom: 16px;
    z-index: 1150;
    display: grid;
    gap: 10px;
    width: min(360px, calc(100vw - 32px));
}

/* When toggle is in nav, only the card panel is fixed (bottom-left) */
.participant-chat--card-only {
    bottom: 16px;
    left: 16px;
}

/* Toggle placed in nav next to Back button */
.participant-chat__toggle--in-nav {
    padding: var(--space-sm, 8px) var(--space-md, 12px);
    font-size: var(--text-sm, 13px);
}

.participant-chat__toggle {
    justify-self: start;
    border: 1px solid var(--color-accent, #f5a623);
    background: var(--color-bg-elevated, #1e1e24);
    color: var(--color-text-primary, #ececf1);
    border-radius: 999px;
    padding: 10px 14px;
    font-family: var(--font-heading, "JetBrains Mono", monospace);
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.participant-chat__toggle:hover,
.participant-chat__toggle[aria-expanded="true"] {
    background: var(--color-bg-hover, #25252d);
}

.participant-chat__card {
    background: var(--color-bg-secondary, #16161a);
    border: 1px solid var(--color-border, #2a2a35);
    border-left: 3px solid var(--color-accent, #f5a623);
    border-radius: 12px;
    padding: 12px;
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.participant-chat__title {
    margin: 0 0 8px 0;
    color: var(--color-text-primary, #ececf1);
    font-family: var(--font-heading, "JetBrains Mono", monospace);
    font-size: 14px;
}

.participant-chat__note {
    margin: 0 0 10px 0;
    color: var(--color-text-secondary, #9898a6);
    font-size: 13px;
    line-height: 1.45;
}

.participant-chat__input {
    width: 100%;
    min-height: 90px;
    resize: vertical;
    border: 1px solid var(--color-border, #2a2a35);
    border-radius: 8px;
    padding: 10px;
    background: var(--color-bg-primary, #0d0d0f);
    color: var(--color-text-primary, #ececf1);
    font-family: var(--font-body, Georgia, serif);
    font-size: 14px;
}

.participant-chat__input:focus-visible {
    outline: 2px solid var(--color-accent, #f5a623);
    outline-offset: 1px;
}

.participant-chat__actions {
    margin-top: 10px;
    display: flex;
    gap: 8px;
    align-items: center;
}

.participant-chat__send,
.participant-chat__close {
    border-radius: 8px;
    padding: 8px 12px;
    font-family: var(--font-heading, "JetBrains Mono", monospace);
    font-size: 12px;
    cursor: pointer;
}

.participant-chat__send {
    background: var(--color-accent, #f5a623);
    border: 1px solid var(--color-accent, #f5a623);
    color: #1a1205;
    font-weight: 700;
}

.participant-chat__send:hover {
    background: var(--color-accent-hover, #ffc857);
    border-color: var(--color-accent-hover, #ffc857);
}

.participant-chat__close {
    background: transparent;
    border: 1px solid var(--color-border, #2a2a35);
    color: var(--color-text-secondary, #9898a6);
}

.participant-chat__status {
    min-height: 1.2em;
    margin-top: 8px;
    font-size: 12px;
    color: var(--color-text-secondary, #9898a6);
}

.participant-chat__status--error {
    color: var(--color-error, #f87171);
}

.participant-chat__status--success {
    color: var(--color-success, #34d399);
}

@media (max-width: 640px) {
    .participant-chat {
        left: 12px;
        right: 12px;
        bottom: 12px;
        width: auto;
    }
}