/* ===== CSS Variables ===== */
:root {
    --primary: #25D366;
    --primary-dark: #128C7E;
    --primary-light: #34eb7d;
    --secondary: #075E54;
    --accent: #00a884;
    --bg-dark: #0a0f1a;
    --bg-card: rgba(255, 255, 255, 0.03);
    --bg-card-hover: rgba(255, 255, 255, 0.06);
    --glass-bg: rgba(255, 255, 255, 0.05);
    --glass-border: rgba(255, 255, 255, 0.1);
    --text-primary: #ffffff;
    --text-secondary: #8696a0;
    --text-muted: #667781;
    --success: #00c853;
    --warning: #ffab00;
    --danger: #ff5252;
    --info: #00b0ff;
    --sidebar-width: 260px;
    --radius: 16px;
    --radius-sm: 8px;
    --shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ===== Reset & Base ===== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-dark);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background:
        radial-gradient(circle at 20% 20%, rgba(37, 211, 102, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 80% 80%, rgba(0, 168, 132, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(7, 94, 84, 0.08) 0%, transparent 60%);
    pointer-events: none;
    z-index: -1;
}

/* ===== App Container ===== */
.app-container {
    display: flex;
    min-height: 100vh;
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-width);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.logo {
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid var(--glass-border);
}

.logo i {
    font-size: 32px;
    color: var(--primary);
}

.logo span {
    font-size: 18px;
    font-weight: 600;
    background: linear-gradient(135deg, var(--primary), var(--primary-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-menu {
    flex: 1;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.nav-item {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 16px;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 3px;
    background: var(--primary);
    transform: scaleY(0);
    transition: var(--transition);
}

.nav-item:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

.nav-item.active {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.15), rgba(0, 168, 132, 0.1));
    color: var(--primary);
}

.nav-item.active::before {
    transform: scaleY(1);
}

.nav-item i {
    font-size: 18px;
    width: 24px;
    text-align: center;
}

.sidebar-footer {
    padding: 16px 24px;
    border-top: 1px solid var(--glass-border);
}

.api-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--warning);
    animation: pulse 2s infinite;
}

.status-dot.online {
    background: var(--success);
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0.5;
    }
}

/* ===== Main Content ===== */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 32px;
    min-height: 100vh;
}

.tab-content {
    display: none;
    animation: fadeIn 0.3s ease;
}

.tab-content.active {
    display: block;
}

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

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

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 32px;
}

.page-header h1 {
    font-size: 28px;
    font-weight: 600;
}

.page-header p {
    color: var(--text-secondary);
    margin-top: 4px;
}

/* ===== Stats Grid ===== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 20px;
    margin-bottom: 32px;
}

.stat-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    display: flex;
    align-items: center;
    gap: 20px;
    transition: var(--transition);
}

.stat-card:hover {
    transform: translateY(-4px);
    border-color: var(--primary);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.15);
}

.stat-icon {
    width: 56px;
    height: 56px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
}

.stat-icon.accounts {
    background: linear-gradient(135deg, rgba(37, 211, 102, 0.2), rgba(37, 211, 102, 0.05));
    color: var(--primary);
}

.stat-icon.connected {
    background: linear-gradient(135deg, rgba(0, 200, 83, 0.2), rgba(0, 200, 83, 0.05));
    color: var(--success);
}

.stat-icon.uptime {
    background: linear-gradient(135deg, rgba(0, 176, 255, 0.2), rgba(0, 176, 255, 0.05));
    color: var(--info);
}

.stat-icon.status {
    background: linear-gradient(135deg, rgba(255, 171, 0, 0.2), rgba(255, 171, 0, 0.05));
    color: var(--warning);
}

.stat-info h3 {
    font-size: 28px;
    font-weight: 700;
}

.stat-info p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

/* ===== Quick Actions ===== */
.quick-actions h2 {
    font-size: 18px;
    margin-bottom: 16px;
    color: var(--text-secondary);
}

.action-buttons {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
}

.action-btn {
    padding: 14px 24px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.action-btn.primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.action-btn.success {
    background: linear-gradient(135deg, var(--success), #00a844);
    color: white;
}

.action-btn.info {
    background: linear-gradient(135deg, var(--info), #0091ea);
    color: white;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}

/* ===== Accounts Grid ===== */
.accounts-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.account-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 24px;
    transition: var(--transition);
}

.account-card:hover {
    border-color: var(--primary);
    transform: translateY(-4px);
}

.account-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: 16px;
}

.account-name {
    font-size: 18px;
    font-weight: 600;
}

.account-id {
    font-size: 12px;
    color: var(--text-muted);
    margin-top: 4px;
    font-family: monospace;
}

.status-badge {
    padding: 6px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
}

.status-badge.connected {
    background: rgba(0, 200, 83, 0.15);
    color: var(--success);
}

.status-badge.connecting {
    background: rgba(255, 171, 0, 0.15);
    color: var(--warning);
}

.status-badge.disconnected {
    background: rgba(255, 82, 82, 0.15);
    color: var(--danger);
}

.account-actions {
    display: flex;
    gap: 8px;
    margin-top: 16px;
}

.account-actions button {
    flex: 1;
    padding: 10px;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
}

.account-actions button:hover {
    background: var(--bg-card-hover);
    color: var(--primary);
    border-color: var(--primary);
}

/* ===== Glass Card ===== */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 32px;
}

/* ===== Forms ===== */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-size: 14px;
    color: var(--text-secondary);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 211, 102, 0.1);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.readonly-input {
    background: rgba(255, 255, 255, 0.02) !important;
    color: var(--text-muted) !important;
    cursor: not-allowed;
}

.form-hint {
    display: block;
    margin-top: 6px;
    font-size: 12px;
    color: var(--warning);
}

.form-actions {
    display: flex;
    gap: 12px;
    margin-top: 24px;
}

.form-row {
    display: flex;
    gap: 16px;
    align-items: flex-end;
}

.form-row .form-group {
    flex: 1;
    margin-bottom: 0;
}

/* ===== Buttons ===== */
.btn-primary {
    padding: 14px 24px;
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    border: none;
    border-radius: var(--radius-sm);
    color: white;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.3);
}

.btn-secondary {
    padding: 14px 24px;
    background: transparent;
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    transition: var(--transition);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    color: var(--primary);
    border-color: var(--primary);
}

.full-width {
    width: 100%;
    justify-content: center;
}

/* ===== Message Form Container ===== */
.message-form-container {
    max-width: 600px;
}

.result-box {
    margin-top: 20px;
    padding: 16px;
    border-radius: var(--radius-sm);
    font-size: 14px;
}

.result-box.success {
    background: rgba(0, 200, 83, 0.1);
    border: 1px solid rgba(0, 200, 83, 0.3);
    color: var(--success);
}

.result-box.error {
    background: rgba(255, 82, 82, 0.1);
    border: 1px solid rgba(255, 82, 82, 0.3);
    color: var(--danger);
}

.hidden {
    display: none !important;
}

/* ===== Contacts List ===== */
.contacts-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 16px;
}

.contact-card {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition);
}

.contact-card:hover {
    border-color: var(--primary);
    background: var(--bg-card-hover);
}

.contact-avatar {
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 600;
}

.contact-info h4 {
    font-size: 15px;
    font-weight: 500;
}

.contact-info p {
    font-size: 13px;
    color: var(--text-muted);
    margin-top: 2px;
}

.empty-state {
    text-align: center;
    padding: 48px;
    color: var(--text-muted);
    grid-column: 1 / -1;
}

/* ===== Chat History ===== */
.history-form {
    margin-bottom: 24px;
}

.chat-history {
    max-height: 500px;
    overflow-y: auto;
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius);
    padding: 16px;
}

.chat-message {
    padding: 12px 16px;
    margin-bottom: 12px;
    border-radius: var(--radius-sm);
    max-width: 80%;
}

.chat-message.sent {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    margin-left: auto;
}

.chat-message.received {
    background: var(--bg-card);
}

.chat-message .text {
    font-size: 14px;
    line-height: 1.5;
}

.chat-message .time {
    font-size: 11px;
    color: rgba(255, 255, 255, 0.6);
    margin-top: 4px;
    text-align: right;
}

/* ===== Modal ===== */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.2s ease;
}

.modal.active {
    display: flex;
}

.modal-content {
    width: 100%;
    max-width: 440px;
    animation: slideUp 0.3s ease;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }

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

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
}

.modal-header h2 {
    font-size: 20px;
}

.close-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    font-size: 24px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    transition: var(--transition);
}

.close-btn:hover {
    background: var(--bg-card-hover);
    color: var(--text-primary);
}

/* ===== QR Modal ===== */
.qr-modal {
    text-align: center;
}

.qr-container {
    min-height: 280px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 24px 0;
}

.qr-loading {
    text-align: center;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--glass-border);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto 16px;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

.qr-code img {
    max-width: 256px;
    border-radius: var(--radius-sm);
}

.qr-connected {
    text-align: center;
}

.qr-connected i {
    font-size: 64px;
    color: var(--success);
    margin-bottom: 16px;
}

.qr-hint {
    font-size: 13px;
    color: var(--text-muted);
}

/* ===== Checkbox ===== */
.checkbox-label {
    display: flex;
    align-items: center;
    gap: 10px;
    cursor: pointer;
}

.checkbox-label input[type="checkbox"] {
    width: 20px;
    height: 20px;
    accent-color: var(--primary);
}

/* ===== Toast ===== */
.toast-container {
    position: fixed;
    bottom: 24px;
    right: 24px;
    z-index: 2000;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.toast {
    padding: 16px 24px;
    border-radius: var(--radius-sm);
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 12px;
    animation: slideIn 0.3s ease;
    min-width: 280px;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(100px);
    }

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

.toast.success {
    border-color: var(--success);
}

.toast.error {
    border-color: var(--danger);
}

.toast.info {
    border-color: var(--info);
}

.toast i {
    font-size: 20px;
}

.toast.success i {
    color: var(--success);
}

.toast.error i {
    color: var(--danger);
}

.toast.info i {
    color: var(--info);
}

/* ===== Header Actions ===== */
.header-actions {
    display: flex;
    gap: 12px;
}

.header-actions select {
    padding: 10px 16px;
    background: var(--bg-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
    }

    .main-content {
        margin-left: 0;
        padding: 16px;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        flex-direction: column;
    }

    .modal-content {
        margin: 16px;
    }
}