:root{--nav-sidebar-width: 64px;--bg-app: #f0f2f5;--bg-nav: #111b21;--bg-header: #ffffff;--bg-sidebar: #ffffff;--bg-chat: #efeae2;--bg-input-bar: #f0f2f5;--bg-hover: #f5f6f6;--bg-active: #ebebeb;--wa-green: #25d366;--wa-dark-green: #00a884;--wa-teal: #059669;--wa-bubble-me: #d9fdd3;--wa-bubble-them: #ffffff;--wa-unread-badge: #25d366;--wa-ticks: #53bdeb;--text-primary: #111b21;--text-secondary: #667781;--text-muted: #8696a0;--border-color: #e9edef;--border-subtle: #f0f2f5;--radius-sm: 6px;--radius-md: 10px;--radius-lg: 16px;--radius-full: 9999px;--font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;--transition: all .2s cubic-bezier(.4, 0, .2, 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