#input {
    background: var(--bar-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border-top: 1px solid var(--glass-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.5rem;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100svw;
    min-height: 4rem;
    padding: 0px;
    box-shadow: 0 -1px 8px var(--shadow);
    z-index: 100;
    transition: background 0.4s ease;
}

#input>textarea {
    flex: 1;
    overflow: hidden;
    resize: none;
    background: var(--glass-bg);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    color: var(--text-primary);
    padding: 0.75rem;
    min-height: 2.5rem;
    max-height: 8rem;
    border: 1px solid var(--border);
    border-radius: var(--border-radius);
    font-family: "NotoSansDisplay-Regular", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 1rem;
    transition: var(--transition);
    margin: 7px;
}

#input>textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(46, 204, 64, 0.18);
    background: var(--surface-hover);
}

#input>svg {
    margin: 7px;
}

#chat {
    height: calc(100svh - 35px - 4rem);
    overflow-y: auto;
    overflow-x: hidden;
    background: var(--background);
    scrollbar-color: var(--accent) transparent;
    scrollbar-width: thin;
    position: fixed;
    top: 35px;
    left: 0;
    width: 100%;
    padding: 1rem;
    box-sizing: border-box;
}

#chat::-webkit-scrollbar {
    width: 6px;
}

#chat::-webkit-scrollbar-track {
    background: transparent;
}

#chat::-webkit-scrollbar-thumb {
    background: var(--accent);
    border-radius: 3px;
    opacity: 0.6;
}

#chat::-webkit-scrollbar-thumb:hover {
    background: var(--accent-dark);
}

.message {
    margin: 1rem 0;
    font-size: 1rem;
    max-width: 80%;
    animation: fadeIn 0.3s ease-in;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message>.sender {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.message.tx>.sender {
    flex-direction: row-reverse;
}

.message.tx {
    margin-left: auto;
}

.message>.sender>.name,
.message>.sender>.sender-line {
    padding: 0.4rem 0.9rem;
    border-radius: var(--border-radius) var(--border-radius) 0 0;
    font-family: "NotoSansDisplay-Medium", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--accent);
    color: #fff;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.01em;
}

.message.tx>.sender>.name,
.message.tx>.sender>.sender-line {
    background: var(--accent-dark);
}

.message-tappable {
    cursor: pointer;
}

.message>.sender>.time {
    background: none;
    font-size: 0.75rem;
    font-family: "NotoSansDisplay-Italic", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    color: var(--text-secondary);
}

.message>p {
    background: var(--glass-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    margin: 0;
    border-radius: 0 var(--border-radius) var(--border-radius) var(--border-radius);
    border: 1px solid var(--glass-border);
    word-wrap: break-word;
    line-height: 1.5;
}

.message.tx>p {
    background: rgba(46, 204, 64, 0.12);
    border-color: rgba(46, 204, 64, 0.25);
    color: var(--text-primary);
    border-radius: var(--border-radius) 0 var(--border-radius) var(--border-radius);
}

[data-theme="ribbit-dark"] .message.tx>p,
[data-theme="auto"] .message.tx>p {
    background: rgba(127, 207, 33, 0.12);
    border-color: rgba(127, 207, 33, 0.20);
}

.message.decode-error>.sender>.name {
    background: var(--warning, #ff9800);
    color: var(--background);
}

.message.decode-error>p {
    background: rgba(255, 152, 0, 0.1);
    border-color: var(--warning, #ff9800);
    border-width: 2px;
    border-style: solid;
}

.message.alert>.sender>.name {
    background: var(--error, #d32f2f);
    color: var(--background);
}

.message.alert>p {
    background: rgba(211, 47, 47, 0.1);
    border-color: var(--error, #d32f2f);
    border-width: 2px;
    border-style: solid;
}


@media screen and (max-width: 768px) {
    #chat {
        height: calc(100svh - 35px - 3.5rem);
        padding: 0.5rem;
    }

    .message {
        max-width: 90%;
        font-size: 0.9rem;
    }

    #input {
        min-height: 3.5rem;
        padding: 0.5rem;
    }

    #input>textarea {
        font-size: 0.9rem;
        padding: 0.5rem;
    }
}

@media screen and (max-width: 480px) {
    #chat {
        padding: 0.25rem;
    }

    .message {
        max-width: 95%;
        margin: 0.5rem 0;
    }

    .message>.sender>.name {
        padding: 0.25rem 0.75rem;
        font-size: 0.9rem;
    }

    .message>p {
        padding: 0.5rem 0.75rem;
        font-size: 0.9rem;
    }
}

@media screen and (orientation: landscape) and (max-height: 500px) {
    #input {
        min-height: 3rem;
    }

    #chat {
        height: calc(100svh - 35px - 3rem);
    }
}

/* Message detail popup (tap message to open) */
#message-detail-popup.popup-backdrop {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(4px);
    -webkit-backdrop-filter: blur(4px);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s ease, visibility 0.2s ease;
}

#message-detail-popup.popup-backdrop.popup-visible {
    opacity: 1;
    visibility: visible;
}

#message-detail-popup .popup-card {
    position: relative;
    width: 100%;
    max-width: 22rem;
    max-height: 85vh;
    overflow: auto;
    background: var(--bar-bg, #fff);
    border-radius: var(--border-radius, 12px);
    border: 1px solid var(--glass-border, rgba(0, 0, 0, 0.1));
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
    padding: 1.25rem 1.5rem;
}

#message-detail-popup .popup-close {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 2rem;
    height: 2rem;
    padding: 0;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 1.5rem;
    line-height: 1;
    cursor: pointer;
    border-radius: var(--border-radius);
}

#message-detail-popup .popup-close:hover {
    background: var(--surface-hover, rgba(0, 0, 0, 0.06));
    color: var(--text-primary);
}

#message-detail-popup .popup-title {
    margin: 0 0 1rem 0;
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--text-primary);
}

#message-detail-popup .popup-details {
    margin: 0;
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 0.35rem 1.25rem;
    align-items: baseline;
}

#message-detail-popup .popup-details dt {
    grid-column: 1;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--text-secondary);
    font-weight: 600;
}

#message-detail-popup .popup-details dd {
    grid-column: 2;
    margin: 0;
    font-size: 0.95rem;
    color: var(--text-primary);
    word-break: break-word;
}

#message-detail-popup .popup-details .popup-message {
    white-space: pre-wrap;
}