/* WhatsApp Web Professional Modern Theme - Dark & Light Mode */
:root {
    --wa-bg-app: #111b21;
    --wa-bg-sidebar: #111b21;
    --wa-bg-header: #202c33;
    --wa-bg-chat-header: #202c33;
    --wa-bg-chat-body: #0b141a;
    --wa-bg-input: #2a3942;
    --wa-bg-hover: #202c33;
    --wa-bg-active: #2a3942;
    --wa-border: #222d34;
    --wa-text-primary: #e9edef;
    --wa-text-secondary: #8696a0;
    --wa-text-muted: #667781;
    --wa-accent: #00a884;
    --wa-accent-hover: #06cf9c;
    --wa-msg-outgoing: #005c4b;
    --wa-msg-incoming: #202c33;
    --wa-badge-unread: #00a884;
    --wa-check-blue: #53bdeb;
    --wa-glass-bg: rgba(32, 44, 51, 0.85);
    --wa-card-shadow: 0 4px 12px rgba(0, 0, 0, 0.35);
}

[data-theme="light"] {
    --wa-bg-app: #f0f2f5;
    --wa-bg-sidebar: #ffffff;
    --wa-bg-header: #f0f2f5;
    --wa-bg-chat-header: #f0f2f5;
    --wa-bg-chat-body: #efeae2;
    --wa-bg-input: #ffffff;
    --wa-bg-hover: #f5f6f6;
    --wa-bg-active: #e9edef;
    --wa-border: #e9edef;
    --wa-text-primary: #111b21;
    --wa-text-secondary: #667781;
    --wa-text-muted: #8696a0;
    --wa-accent: #008069;
    --wa-accent-hover: #017560;
    --wa-msg-outgoing: #d9fdd3;
    --wa-msg-incoming: #ffffff;
    --wa-badge-unread: #25d366;
    --wa-check-blue: #53bdeb;
    --wa-glass-bg: rgba(255, 255, 255, 0.85);
    --wa-card-shadow: 0 4px 12px rgba(0, 0, 0, 0.08);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', -apple-system, BlinkMacSystemFont, Roboto, Helvetica, Arial, sans-serif;
}

body {
    background-color: var(--wa-bg-app);
    color: var(--wa-text-primary);
    height: 100vh;
    overflow: hidden;
}

/* App Container */
.wa-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    background-color: var(--wa-bg-app);
}

/* Sidebar */
.wa-sidebar {
    width: 380px;
    min-width: 320px;
    height: 100%;
    background-color: var(--wa-bg-sidebar);
    border-right: 1px solid var(--wa-border);
    display: flex;
    flex-direction: column;
}

.wa-sidebar-header {
    height: 60px;
    background-color: var(--wa-bg-header);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--wa-border);
}

.wa-user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    cursor: pointer;
    border: 2px solid var(--wa-accent);
}

.wa-header-actions {
    display: flex;
    gap: 16px;
    align-items: center;
}

.wa-icon-btn {
    background: none;
    border: none;
    color: var(--wa-text-secondary);
    font-size: 1.25rem;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    transition: background 0.2s, color 0.2s;
}

.wa-icon-btn:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: var(--wa-text-primary);
}

/* Search Bar */
.wa-search-container {
    padding: 8px 12px;
    background-color: var(--wa-bg-sidebar);
    border-bottom: 1px solid var(--wa-border);
}

.wa-search-box {
    display: flex;
    align-items: center;
    background-color: var(--wa-bg-input);
    border-radius: 8px;
    padding: 6px 12px;
    gap: 10px;
}

.wa-search-box i {
    color: var(--wa-text-secondary);
}

.wa-search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--wa-text-primary);
    width: 100%;
    font-size: 0.9rem;
}

/* Contact List */
.wa-contact-list {
    flex: 1;
    overflow-y: auto;
}

.wa-contact-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    gap: 14px;
    cursor: pointer;
    border-bottom: 1px solid var(--wa-border);
    transition: background-color 0.15s ease;
    position: relative;
}

.wa-contact-item:hover {
    background-color: var(--wa-bg-hover);
}

.wa-contact-item.active {
    background-color: var(--wa-bg-active);
}

.wa-avatar-wrapper {
    position: relative;
}

.wa-contact-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    object-fit: cover;
}

.wa-online-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background-color: var(--wa-accent);
    border: 2px solid var(--wa-bg-sidebar);
    border-radius: 50%;
}

.wa-contact-info {
    flex: 1;
    overflow: hidden;
}

.wa-contact-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 4px;
}

.wa-contact-name {
    font-weight: 600;
    font-size: 0.95rem;
    color: var(--wa-text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wa-contact-time {
    font-size: 0.75rem;
    color: var(--wa-text-muted);
}

.wa-contact-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.wa-last-msg {
    font-size: 0.85rem;
    color: var(--wa-text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 200px;
}

.wa-unread-badge {
    background-color: var(--wa-badge-unread);
    color: #fff;
    font-size: 0.75rem;
    font-weight: bold;
    padding: 2px 7px;
    border-radius: 12px;
    min-width: 18px;
    text-align: center;
}

/* Chat Main Area */
.wa-chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: 100%;
    background-color: var(--wa-bg-chat-body);
    position: relative;
}

/* Chat Header */
.wa-chat-header {
    height: 60px;
    background-color: var(--wa-bg-chat-header);
    padding: 10px 16px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--wa-border);
    z-index: 10;
}

.wa-active-user {
    display: flex;
    align-items: center;
    gap: 12px;
}

.wa-active-status {
    font-size: 0.8rem;
    color: var(--wa-text-secondary);
}

.wa-active-status.typing {
    color: var(--wa-accent);
    font-weight: 600;
}

/* Chat Messages Stream */
.wa-messages-container {
    flex: 1;
    padding: 20px 5%;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 10px;
    background-image: radial-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 0);
    background-size: 24px 24px;
}

/* Message Bubble */
.wa-msg-row {
    display: flex;
    width: 100%;
    margin-bottom: 2px;
}

.wa-msg-row.outgoing {
    justify-content: flex-end;
}

.wa-msg-row.incoming {
    justify-content: flex-start;
}

.wa-msg-bubble {
    max-width: 65%;
    padding: 8px 12px 6px 12px;
    border-radius: 8px;
    position: relative;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.15);
    word-break: break-word;
    font-size: 0.92rem;
    line-height: 1.4;
}

.wa-msg-row.outgoing .wa-msg-bubble {
    background-color: var(--wa-msg-outgoing);
    color: var(--wa-text-primary);
    border-top-right-radius: 0;
}

.wa-msg-bubble:hover .wa-msg-delete-btn {
    opacity: 1;
}

.wa-msg-delete-btn {
    opacity: 0;
    position: absolute;
    top: 4px;
    right: 6px;
    background: rgba(0, 0, 0, 0.35);
    border: none;
    color: #ff6b6b;
    border-radius: 4px;
    width: 22px;
    height: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.78rem;
    cursor: pointer;
    transition: opacity 0.15s ease, background 0.15s ease;
    z-index: 10;
}

.wa-msg-delete-btn:hover {
    background: rgba(255, 77, 77, 0.85);
    color: #fff;
}

.wa-msg-row.incoming .wa-msg-bubble {
    background-color: var(--wa-msg-incoming);
    color: var(--wa-text-primary);
    border-top-left-radius: 0;
}

.wa-msg-meta {
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    margin-top: 4px;
    font-size: 0.7rem;
    color: var(--wa-text-muted);
}

.wa-check-icon {
    font-size: 0.85rem;
}

.wa-check-icon.read {
    color: var(--wa-check-blue);
}

/* Voice Note Player Bubble Component */
.wa-voice-player {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 260px;
    padding: 6px 0;
}

.wa-voice-play-btn {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--wa-accent);
    color: #fff;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    flex-shrink: 0;
    transition: transform 0.15s ease;
}

.wa-voice-play-btn:hover {
    transform: scale(1.05);
}

.wa-voice-waveform-box {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.wa-waveform-bars {
    display: flex;
    align-items: center;
    gap: 3px;
    height: 24px;
}

.wa-bar {
    flex: 1;
    height: 8px;
    background-color: var(--wa-text-secondary);
    border-radius: 2px;
    transition: height 0.15s ease, background-color 0.15s ease;
}

.wa-bar.active {
    background-color: var(--wa-accent);
}

.wa-voice-timer {
    font-size: 0.75rem;
    color: var(--wa-text-secondary);
}

/* File / Media Attachment Card */
.wa-file-card {
    display: flex;
    align-items: center;
    gap: 12px;
    background: rgba(0, 0, 0, 0.15);
    padding: 10px;
    border-radius: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 6px;
    max-width: 320px;
}

.wa-file-icon {
    font-size: 2rem;
    color: var(--wa-accent);
}

.wa-file-details {
    flex: 1;
    overflow: hidden;
}

.wa-file-title {
    font-weight: 600;
    font-size: 0.85rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.wa-file-size {
    font-size: 0.75rem;
    color: var(--wa-text-secondary);
}

.wa-media-img {
    max-width: 100%;
    max-height: 280px;
    border-radius: 8px;
    cursor: pointer;
    object-fit: cover;
    margin-bottom: 4px;
}

.wa-media-video {
    max-width: 100%;
    max-height: 280px;
    border-radius: 8px;
    margin-bottom: 4px;
}

/* Input Area */
.wa-chat-input-area {
    min-height: 62px;
    background-color: var(--wa-bg-header);
    padding: 8px 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-top: 1px solid var(--wa-border);
    position: relative;
}

.wa-input-box-wrapper {
    flex: 1;
    background-color: var(--wa-bg-input);
    border-radius: 12px;
    padding: 8px 14px;
    display: flex;
    align-items: center;
}

.wa-chat-textarea {
    width: 100%;
    background: transparent;
    border: none;
    outline: none;
    color: var(--wa-text-primary);
    font-size: 0.95rem;
    resize: none;
    max-height: 100px;
}

/* Mic Recording Live Bar */
.wa-recording-overlay {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--wa-bg-header);
    display: flex;
    align-items: center;
    padding: 0 20px;
    gap: 16px;
    z-index: 20;
    animation: fadeIn 0.2s ease-in;
}

.wa-rec-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #ff4d4d;
    font-weight: 600;
}

.wa-rec-dot {
    width: 12px;
    height: 12px;
    background-color: #ff4d4d;
    border-radius: 50%;
    animation: pulse 1s infinite alternate;
}

@keyframes pulse {
    0% { transform: scale(0.8); opacity: 0.6; }
    100% { transform: scale(1.2); opacity: 1; }
}

.wa-rec-wave {
    flex: 1;
    height: 20px;
    display: flex;
    align-items: center;
    gap: 4px;
}

.wa-rec-wave-bar {
    width: 4px;
    height: 6px;
    background-color: var(--wa-accent);
    border-radius: 2px;
    animation: wave 0.8s infinite ease-in-out alternate;
}

@keyframes wave {
    0% { height: 4px; }
    100% { height: 22px; }
}

/* Dropdown Attachment Menu */
.wa-attach-popover {
    position: absolute;
    bottom: 70px;
    left: 55px;
    background-color: var(--wa-bg-header);
    border: 1px solid var(--wa-border);
    border-radius: 12px;
    padding: 10px;
    display: flex;
    flex-direction: column;
    gap: 8px;
    box-shadow: var(--wa-card-shadow);
    z-index: 50;
}

/* Emoji Picker Popover */
.wa-emoji-popover {
    position: absolute;
    bottom: 70px;
    left: 15px;
    background-color: var(--wa-bg-header);
    border: 1px solid var(--wa-border);
    border-radius: 12px;
    padding: 10px;
    width: 320px;
    height: 270px;
    display: flex;
    flex-direction: column;
    box-shadow: var(--wa-card-shadow);
    z-index: 50;
}

.wa-emoji-header {
    display: flex;
    justify-content: space-around;
    padding-bottom: 8px;
    border-bottom: 1px solid var(--wa-border);
    margin-bottom: 8px;
}

.wa-emoji-tab {
    cursor: pointer;
    font-size: 1.2rem;
    padding: 2px 6px;
    border-radius: 6px;
    transition: background 0.15s ease;
}

.wa-emoji-tab:hover, .wa-emoji-tab.active {
    background-color: var(--wa-bg-hover);
}

.wa-emoji-grid {
    flex: 1;
    overflow-y: auto;
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 6px;
    padding: 4px;
}

.wa-emoji-item {
    font-size: 1.35rem;
    cursor: pointer;
    text-align: center;
    border-radius: 6px;
    padding: 4px;
    user-select: none;
    transition: transform 0.1s ease, background 0.15s ease;
}

.wa-emoji-item:hover {
    background-color: var(--wa-bg-hover);
    transform: scale(1.25);
}

.wa-attach-option {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 16px;
    border-radius: 8px;
    cursor: pointer;
    color: var(--wa-text-primary);
    transition: background 0.15s ease;
}

.wa-attach-option:hover {
    background-color: var(--wa-bg-hover);
}

.wa-attach-icon-circle {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
}

/* Modal Lightbox */
.wa-lightbox {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.85);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
}

.wa-lightbox img {
    max-width: 90vw;
    max-height: 90vh;
    border-radius: 8px;
}

/* Toast Notifications */
.wa-toast {
    position: fixed;
    top: 20px;
    right: 20px;
    background-color: #ff4d4d;
    color: #fff;
    padding: 12px 20px;
    border-radius: 8px;
    box-shadow: var(--wa-card-shadow);
    z-index: 2000;
    font-size: 0.9rem;
    font-weight: 600;
}

/* Security Badge */
.wa-security-banner {
    background-color: rgba(0, 168, 132, 0.15);
    border: 1px solid rgba(0, 168, 132, 0.3);
    color: var(--wa-accent);
    padding: 8px 12px;
    border-radius: 8px;
    font-size: 0.78rem;
    text-align: center;
    margin: 10px auto;
    max-width: 80%;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}