.panel-message-layer {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: grid;
    place-items: center;
    padding: max(20px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(20px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    background: rgba(2, 6, 23, 0.58);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0s linear 0.2s;
}

.panel-message-layer.is-open {
    opacity: 1;
    visibility: visible;
    transition-delay: 0s;
}

.panel-message-dialog {
    --message-accent: #38bdf8;
    width: min(100%, 410px);
    overflow: hidden;
    border: 1px solid rgba(148, 163, 184, 0.22);
    border-radius: 22px;
    background:
        radial-gradient(circle at 100% 0, color-mix(in srgb, var(--message-accent) 18%, transparent), transparent 42%),
        rgba(15, 23, 42, 0.96);
    color: #f8fafc;
    box-shadow: 0 28px 70px rgba(2, 6, 23, 0.42);
    transform: translateY(18px) scale(0.97);
    transition: transform 0.24s cubic-bezier(0.22, 1, 0.36, 1);
}

.panel-message-layer.is-open .panel-message-dialog {
    transform: translateY(0) scale(1);
}

.panel-message-layer.is-closing .panel-message-dialog {
    transform: translateY(10px) scale(0.985);
}

.panel-message-dialog[data-tone="success"] { --message-accent: #34d399; }
.panel-message-dialog[data-tone="warning"] { --message-accent: #fbbf24; }
.panel-message-dialog[data-tone="danger"] { --message-accent: #fb7185; }

.panel-message-accent {
    height: 4px;
    background: linear-gradient(90deg, var(--message-accent), color-mix(in srgb, var(--message-accent) 30%, transparent));
}

.panel-message-content {
    display: grid;
    grid-template-columns: 44px minmax(0, 1fr);
    gap: 14px;
    padding: 24px 24px 16px;
}

.panel-message-icon {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 1px solid color-mix(in srgb, var(--message-accent) 35%, transparent);
    border-radius: 15px;
    background: color-mix(in srgb, var(--message-accent) 13%, transparent);
    color: var(--message-accent);
    font-size: 1.25rem;
    font-weight: 800;
}

.panel-message-title {
    margin: 1px 0 7px;
    color: inherit;
    font: 800 1.05rem/1.25 Georgia, 'Times New Roman', serif;
    letter-spacing: 0.01em;
}

.panel-message-text {
    max-height: min(44vh, 320px);
    margin: 0;
    overflow: auto;
    color: #cbd5e1;
    font: 500 0.94rem/1.55 'Trebuchet MS', sans-serif;
    overflow-wrap: anywhere;
    white-space: pre-line;
}

.panel-message-field {
    grid-column: 1 / -1;
    width: 100%;
    min-height: 46px;
    margin-top: 2px;
    padding: 11px 13px;
    border: 1px solid rgba(148, 163, 184, 0.32);
    border-radius: 12px;
    outline: none;
    background: rgba(2, 6, 23, 0.56);
    color: #f8fafc;
    font: 600 0.95rem/1.35 'Trebuchet MS', sans-serif;
    transition: border-color 0.18s ease, box-shadow 0.18s ease;
}

.panel-message-field:focus {
    border-color: var(--message-accent);
    box-shadow: 0 0 0 3px color-mix(in srgb, var(--message-accent) 18%, transparent);
}

.panel-message-actions {
    display: flex;
    justify-content: flex-end;
    gap: 10px;
    padding: 4px 24px 24px;
}

.panel-message-button {
    min-width: 108px;
    min-height: 43px;
    padding: 10px 17px;
    border: 1px solid transparent;
    border-radius: 12px;
    cursor: pointer;
    font: 800 0.9rem/1 'Trebuchet MS', sans-serif;
    transition: transform 0.16s ease, filter 0.16s ease, border-color 0.16s ease, background 0.16s ease;
}

.panel-message-button:hover { transform: translateY(-1px); }
.panel-message-button:active { transform: translateY(0); }
.panel-message-button:focus-visible { outline: 3px solid color-mix(in srgb, var(--message-accent) 32%, transparent); outline-offset: 2px; }

.panel-message-button--primary {
    background: var(--message-accent);
    color: #06111f;
    box-shadow: 0 8px 20px color-mix(in srgb, var(--message-accent) 22%, transparent);
}

.panel-message-button--primary:hover { filter: brightness(1.08); }

.panel-message-button--secondary {
    border-color: rgba(148, 163, 184, 0.26);
    background: rgba(148, 163, 184, 0.09);
    color: #cbd5e1;
}

html[data-theme="light"] .panel-message-layer { background: rgba(15, 23, 42, 0.34); }

html[data-theme="light"] .panel-message-dialog {
    border-color: rgba(15, 23, 42, 0.12);
    background:
        radial-gradient(circle at 100% 0, color-mix(in srgb, var(--message-accent) 14%, transparent), transparent 42%),
        rgba(255, 255, 255, 0.97);
    color: #0f172a;
    box-shadow: 0 28px 70px rgba(15, 23, 42, 0.22);
}

html[data-theme="light"] .panel-message-text { color: #475569; }
html[data-theme="light"] .panel-message-field { border-color: #cbd5e1; background: #f8fafc; color: #0f172a; }
html[data-theme="light"] .panel-message-button--secondary { border-color: #cbd5e1; background: #f1f5f9; color: #334155; }

@media (max-width: 520px) {
    .panel-message-dialog { border-radius: 18px; }
    .panel-message-content { grid-template-columns: 40px minmax(0, 1fr); padding: 20px 18px 14px; }
    .panel-message-icon { width: 40px; height: 40px; border-radius: 13px; }
    .panel-message-actions { padding: 4px 18px 19px; }
    .panel-message-button { flex: 1; min-width: 0; }
}

@media (prefers-reduced-motion: reduce) {
    .panel-message-layer,
    .panel-message-dialog,
    .panel-message-button { transition-duration: 0.01ms !important; }
}