:root {
    --digichat-wa-primary: #25D366;
    --digichat-wa-dark: #121b22;
    --digichat-wa-light: #ffffff;
    --digichat-wa-shadow: rgba(0, 0, 0, 0.15);
    /* Default offsets, will be overridden by JS */
    --digichat-wa-bottom: 20px;
    --digichat-wa-top: 20px;
    --digichat-wa-side: 20px;
    --digichat-wa-icon-color: #25D366;
    --digichat-wa-icon-size: 60px;
    --digichat-wa-header-color: #25D366;
    --digichat-wa-header-text-color: #ffffff;
    --digichat-wa-body-bg: #ffffff;
    --digichat-wa-name-color: #1d2327;
    --digichat-wa-desc-color: #646970;
    --digichat-wa-status-color: #25D366;
}

#digichat-wa-container.digichat-loading {
    visibility: hidden;
    opacity: 0;
}

#digichat-wa-container {
    position: fixed;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    transition: opacity 0.3s ease;
}

#digichat-wa-container.is-ready {
    visibility: visible;
    opacity: 1;
}

/* Horizontal Position */
.digichat-wa-pos-h-right {
    right: var(--digichat-wa-side);
}

.digichat-wa-pos-h-left {
    left: var(--digichat-wa-side);
}

/* Vertical Position */
.digichat-wa-pos-v-bottom {
    bottom: var(--digichat-wa-bottom);
}

.digichat-wa-pos-v-top {
    top: var(--digichat-wa-top);
}

/* Pulse Animation (Upgrade) */
@keyframes digichat-pulse {
    0% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0.7); }
    70% { box-shadow: 0 0 0 15px rgba(37, 211, 102, 0); }
    100% { box-shadow: 0 0 0 0 rgba(37, 211, 102, 0); }
}

.digichat-wa-button {
    width: var(--digichat-wa-icon-size);
    height: var(--digichat-wa-icon-size);
    border-radius: 50%;
    background: var(--digichat-wa-icon-color);
    box-shadow: 0 4px 12px var(--digichat-wa-shadow);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    outline: none;
    padding: 0;
    animation: digichat-pulse 2s infinite; /* Upgrade: Pulse */
}

.digichat-wa-button:hover {
    transform: scale(1.1) rotate(5deg);
}

.digichat-wa-button svg {
    width: calc(var(--digichat-wa-icon-size) * 0.53);
    height: calc(var(--digichat-wa-icon-size) * 0.53);
    fill: white;
}

/* Glassmorphism Popup (Upgrade) */
.digichat-wa-popup {
    position: absolute;
    width: 340px;
    background: var(--digichat-wa-body-bg); /* Use setting */
    backdrop-filter: blur(10px); /* Upgrade: Blur */
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.15);
    overflow: hidden;
    display: none;
    animation: digichatFadeIn 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
    flex-direction: column;
}

.digichat-wa-pos-v-bottom .digichat-wa-popup {
    bottom: calc(var(--digichat-wa-icon-size) + 20px);
}

.digichat-wa-pos-v-top .digichat-wa-popup {
    top: calc(var(--digichat-wa-icon-size) + 20px);
}

.digichat-wa-pos-h-right .digichat-wa-popup {
    right: 0;
    transform-origin: bottom right;
}

.digichat-wa-pos-h-left .digichat-wa-popup {
    left: 0;
    transform-origin: bottom left;
}

.digichat-wa-popup.is-active {
    display: flex;
}

.digichat-wa-header {
    background: var(--digichat-wa-header-color);
    padding: 25px 20px;
    color: var(--digichat-wa-header-text-color);
    position: relative;
}

.digichat-wa-header h3 {
    margin: 0;
    font-size: 19px;
    font-weight: 700;
    color: var(--digichat-wa-header-text-color);
}

.digichat-wa-header p {
    margin: 6px 0 0;
    font-size: 13px;
    opacity: 0.85;
    color: var(--digichat-wa-header-text-color);
}

.digichat-wa-agent-category {
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    background: var(--digichat-wa-status-color);
    color: white; /* Changed for better contrast */
    padding: 2px 8px;
    border-radius: 4px;
    display: inline-block;
    font-weight: 700;
    opacity: 0.85;
}

.digichat-wa-body {
    padding: 15px;
    max-height: 400px;
    overflow-y: auto;
}

.digichat-wa-agent-item {
    display: flex;
    align-items: center;
    padding: 14px;
    margin-bottom: 10px;
    text-decoration: none;
    color: var(--digichat-wa-dark);
    border-radius: 12px;
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    background: rgba(248, 249, 250, 0.6);
    border: 1px solid rgba(0,0,0,0.03);
}

.digichat-wa-agent-item:hover {
    background: #ffffff;
    border-color: var(--digichat-wa-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.08);
}

.digichat-wa-agent-avatar img {
    width: 100%;
    height: 100%;
    border-radius: 50%;
    object-fit: cover;
    display: block;
    margin: 0;
}

.digichat-wa-agent-photo-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--digichat-wa-status-color);
    color: white;
    font-size: 20px;
    font-weight: 700;
}

.digichat-wa-agent-avatar {
    width: 50px;
    height: 50px;
    background: #e9ecef;
    border-radius: 50%;
    margin-right: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    color: #495057;
    flex-shrink: 0;
    overflow: hidden;
    position: relative;
    border: 1px solid rgba(0,0,0,0.05);
}

/* Typing Indicator (Upgrade) */
.digichat-wa-agent-item.is-typing .digichat-wa-agent-info b::after {
    content: '...';
    animation: digichat-typing 1.5s infinite;
}

@keyframes digichat-typing {
    0% { opacity: .2; }
    20% { opacity: 1; }
    100% { opacity: .2; }
}

.digichat-wa-agent-info b {
    display: block;
    font-size: 15px;
    margin-bottom: 2px;
    color: var(--digichat-wa-name-color);
}

.digichat-wa-category {
    display: block;
    background: var(--digichat-wa-status-color);
    padding: 2px 8px;
    border-radius: 6px;
    font-size: 9px;
    color: white;
    text-transform: uppercase;
    font-weight: 700;
    margin-bottom: 4px;
    width: fit-content;
    opacity: 0.85;
}

.digichat-wa-agent-info .digichat-wa-status-text {
    font-size: 11px;
    color: var(--digichat-wa-desc-color);
    display: flex;
    align-items: center;
    gap: 5px;
}

.digichat-wa-agent-info .digichat-wa-status-text::before {
    content: '';
    width: 7px;
    height: 7px;
    background: var(--digichat-wa-status-color);
    border-radius: 50%;
    box-shadow: 0 0 0 2px rgba(37, 211, 102, 0.15);
}

.digichat-wa-tooltip {
    position: absolute;
    background: white;
    padding: 12px 20px;
    border-radius: 14px;
    box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
    white-space: nowrap;
    font-size: 15px;
    font-weight: 600;
    color: #1d2327;
    opacity: 0;
    visibility: hidden;
    transition: all 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    z-index: 10001;
    pointer-events: none;
}

.digichat-wa-pos-v-bottom .digichat-wa-tooltip {
    bottom: calc(var(--digichat-wa-icon-size) + 15px);
    transform: translateY(10px);
}

.digichat-wa-pos-v-top .digichat-wa-tooltip {
    top: calc(var(--digichat-wa-icon-size) + 15px);
    transform: translateY(-10px);
}

.digichat-wa-tooltip.is-active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

@keyframes digichatFadeIn {
    from { opacity: 0; transform: translateY(20px) scale(0.9); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 480px) {
    .digichat-wa-popup {
        width: calc(100vw - 40px);
        bottom: 70px;
    }
}