:root {
            --background: #09090b;
            --foreground: #e4e4e7;
            --border-color: rgba(63, 63, 70, 0.4);
            --card-bg: rgba(9, 9, 11, 0.8);
            --hover-bg: #ffffff;
            --hover-text: #000000;
            --text-muted: #a1a1aa;
            --text-secondary: #71717a;
            --error-bg: rgba(127, 29, 29, 0.6);
            --error-border: rgba(159, 18, 57, 0.3);
            --error-text-heading: #fca5a5;
            --error-text-body: #f87171;
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
            border-color: var(--border-color);
            -webkit-user-select: none;
            -moz-user-select: none;
            -ms-user-select: none;
            user-select: none;
            -webkit-touch-callout: none;
            -webkit-tap-highlight-color: transparent;
        }

        html, body {
            height: 100%;
            overflow-x: hidden;
            scrollbar-width: none;
            -ms-overflow-style: none;
            background-color: var(--background);
        }

        html::-webkit-scrollbar, body::-webkit-scrollbar {
            display: none;
        }

        body {
            font-family: 'Inter', Arial, Helvetica, sans-serif;
            color: var(--foreground);
            background-color: var(--background) !important;
        }

        #loader {
            position: fixed;
            top: 0;
            left: 0;
            width: 100%;
            height: 100%;
            background: #09090b;
            display: flex;
            justify-content: center;
            align-items: center;
            z-index: 1000;
            opacity: 1;
            transition: opacity 0.5s ease-out;
        }

        #loader.hidden {
            opacity: 0;
            pointer-events: none;
        }

        .spinner {
            width: 50px;
            height: 50px;
            border: 5px solid rgba(255, 255, 255, 0.2);
            border-top: 5px solid #fff;
            border-radius: 50%;
            animation: spin 1s linear infinite;
        }

        @keyframes spin {
            0% { transform: rotate(0deg); }
            100% { transform: rotate(360deg); }
        }

        .backdrop-blur-lg {
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
        }

        .toast-notification {
            position: fixed;
            top: 1rem;
            right: 1rem;
            z-index: 50;
            max-width: 20rem;
            transform: translateX(100%) scale(0.95);
            opacity: 0;
            transition: transform 0.5s ease-out, opacity 0.5s ease-out;
        }

        .toast-notification.show {
            transform: translateX(0) scale(1);
            opacity: 1;
        }

        .toast-content {
            width: 100%;
            border-radius: 0.75rem;
            background-color: var(--error-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--error-border);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            padding: 0.75rem 1rem;
        }

        .toast-content .flex { display: flex; align-items: center; gap: 0.75rem; }
        .toast-content .icon { flex-shrink: 0; }
        .toast-content .icon svg { color: var(--error-text-body); }
        .toast-content .text-content { flex: 1 1 0%; min-width: 0; }
        .toast-content h4 { color: var(--error-text-heading); font-weight: 500; font-size: 0.75rem; line-height: 1rem; margin-bottom: 0.25rem; }
        .toast-content p { color: var(--error-text-body); font-size: 0.75rem; line-height: 1.1; }

        .mobile-header {
            background-color: rgba(9, 9, 11, 0.8);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-bottom: 1px solid var(--border-color);
            padding: 1rem;
            position: sticky;
            top: 0;
            z-index: 30;
        }
        .mobile-header > div { display: flex; align-items: center; justify-content: space-between; }
        .mobile-header .logo { display: flex; align-items: center; gap: 0.75rem; }
        .mobile-header .logo svg { color: white; }
        .mobile-header .logo span { color: white; font-weight: 600; font-size: 1.125rem; }
        .mobile-header .menu-button { padding: 0.5rem; border-radius: 0.5rem; transition: all 0.3s; }
        .mobile-header .menu-button:hover { background-color: var(--hover-bg); color: var(--hover-text); }

        .main-container { display: flex; min-height: 100vh; }

        .sidebar {
            position: fixed;
            inset: 0;
            left: 0;
            z-index: 50;
            width: 20rem;
            height: 100%;
            background-color: rgba(9, 9, 11, 0.95);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border-right: 1px solid var(--border-color);
            padding: 1.5rem;
            display: flex;
            flex-direction: column;
            gap: 1.5rem;
            overflow-y: auto;
            transform: translateX(-100%);
            transition: transform 0.3s ease-in-out;
        }
        .sidebar.open { transform: translateX(0); }

        .sidebar .mobile-header-inner { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
        .sidebar .mobile-header-inner .logo { display: flex; align-items: center; gap: 0.5rem; flex: 1; }
        .sidebar .mobile-header-inner .logo svg { color: white; }
        .sidebar .mobile-header-inner .logo span { color: white; font-weight: 600; font-size: 1.25rem; }
        .sidebar .mobile-header-inner .close-button { padding: 0.5rem; border-radius: 0.5rem; transition: all 0.3s; }
        .sidebar .mobile-header-inner .close-button:hover { background-color: var(--hover-bg); color: var(--hover-text); }

        .sidebar .desktop-logo-container { display: none; }
        .sidebar .desktop-logo { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; padding-top: 0; margin-top: -0.5rem; }
        .sidebar .desktop-logo .logo-inner { display: flex; align-items: center; gap: 1rem; }
        .sidebar .desktop-logo .logo-inner svg { color: white; }
        .sidebar .desktop-logo .logo-inner span { color: white; font-weight: 600; font-size: 1.5rem; }
        .sidebar .desktop-logo .separator { width: 100%; height: 1px; background-color: #27272a; margin-left: -1.5rem; margin-right: -1.5rem; }

        .sidebar nav { display: flex; flex-direction: column; gap: 0.5rem; flex: 1; }
        .sidebar nav .nav-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-radius: 0.5rem; color: var(--text-muted); transition: all 0.3s; cursor: pointer; }
        .sidebar nav .nav-item:hover { background-color: var(--hover-bg); color: var(--hover-text); }
        .sidebar nav .nav-item span { font-weight: 500; }
        .sidebar nav .nav-item.category-title { margin-top: 1rem; margin-bottom: 0.75rem; }
        .sidebar nav .nav-item.category-title span { color: var(--text-secondary); font-size: 0.875rem; font-weight: 500; text-transform: uppercase; letter-spacing: 0.05em; padding-left: 0.5rem; }
        
        .sidebar .dropdown-toggle { justify-content: space-between; }
        .sidebar .dropdown-toggle .arrow { transition: transform 0.3s; }
        .sidebar .dropdown-toggle.open .arrow { transform: rotate(90deg); }

        .sidebar .dropdown-content {
            overflow: hidden;
            transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
            max-height: 0;
            opacity: 0;
        }
        .sidebar .dropdown-content.open { max-height: 400px; opacity: 1; }
        .sidebar .dropdown-content .inner-content { margin-left: 1rem; }
        .sidebar .dropdown-content .category-header { display: flex; align-items: center; justify-content: space-between; padding: 0.75rem 1rem; border-radius: 0.5rem; cursor: pointer; color: var(--text-secondary); transition: color 0.2s; }
        .sidebar .dropdown-content .category-header:hover { color: white; }
        .sidebar .dropdown-content .category-header .title { font-weight: 600; font-size: 1.125rem; }
        .sidebar .dropdown-content .category-header .arrow { transition: transform 0.3s; }
        .sidebar .dropdown-content .category-header.open .arrow { transform: rotate(90deg); }
        
        .sidebar .server-list {
            overflow: hidden;
            transition: max-height 0.3s ease-in-out, opacity 0.3s ease-in-out;
            max-height: 0;
            opacity: 0;
        }
        .sidebar .server-list.open { max-height: 400px; opacity: 1; }
        .sidebar .server-list .server-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-radius: 0.5rem; color: var(--text-muted); transition: color 0.3s; cursor: pointer; }
        .sidebar .server-list .server-item:hover { color: white; }
        .sidebar .server-list .server-item img { width: 1.25rem; height: 1.25rem; border-radius: 0.125rem; flex-shrink: 0; }
        .sidebar .server-list .server-item .info { flex: 1 1 0%; min-width: 0; }
        .sidebar .server-list .server-item .info .name { font-weight: 500; font-size: 0.875rem; }
        .sidebar .server-list .server-item .badge { margin-left: auto; font-size: 0.75rem; border: 1px solid var(--border-color); color: #a1a1aa; padding: 0.25rem 0.75rem; border-radius: 0.5rem; font-weight: 600; flex-shrink: 0; }

        .mobile-overlay {
            position: fixed;
            inset: 0;
            background-color: rgba(0, 0, 0, 0.5);
            z-index: 40;
            transition: opacity 0.3s;
        }

        .main-content {
            flex: 1;
            overflow-y: auto;
        }
        .main-content .content-wrapper { display: flex; flex-direction: column; gap: 1.5rem; padding: 1rem; max-width: 100%; }

        .card {
            width: 100%;
            border-radius: 1rem;
            background-color: var(--card-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
            padding: 1.5rem;
        }
        .card.info-card { padding-top: 0.75rem; padding-bottom: 0.75rem; }
        .card.info-card .text-center { text-align: center; }
        .card.info-card span { color: var(--foreground); font-size: 0.875rem; font-weight: 500; word-break: break-word; }

        .banner-container { display: flex; flex-direction: column; gap: 1rem; }
        .banner-item { position: relative; height: 35px; width: 100%; overflow: hidden; border-radius: 4px; }
        .banner-item img { width: 100%; height: 100%; object-fit: cover; border-radius: 4px; }

        .tools-layout { display: flex; flex-direction: column; gap: 1.5rem; }
        .tool-selector-card { width: 100%; }
        .tool-selector-card .inner { display: flex; flex-direction: column; gap: 1rem; }
        .tool-selector-card .header { text-align: center; }
        .tool-selector-card .header h2 { color: white; font-size: 1.25rem; font-weight: 700; }
        .tool-selector-card .buttons { display: flex; flex-direction: column; gap: 0.75rem; }
        .tool-selector-card .tool-button {
            position: relative;
            padding: 0.75rem 1rem;
            border-radius: 0.5rem;
            font-weight: 500;
            transition: all 0.3s;
            text-align: left;
            background-color: var(--card-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            color: var(--foreground);
            cursor: pointer;
        }
        .tool-selector-card .tool-button:disabled {
            color: #71717a;
            cursor: not-allowed;
            opacity: 0.5;
        }
        .tool-selector-card .tool-button .content { display: flex; align-items: center; gap: 0.75rem; }

        .main-tool-card { flex: 1; }
        .main-tool-card .tool-content { max-width: 56rem; margin: 0 auto; }
        .main-tool-card .header { text-align: center; margin-bottom: 1.5rem; }
        .main-tool-card .header h3 { color: white; font-size: 1.5rem; font-weight: 600; margin-bottom: 0.5rem; }
        .main-tool-card .header p { color: var(--text-muted); }
        .main-tool-card .input-section { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 1.5rem; }
        .main-tool-card .input-wrapper { flex: 1; position: relative; }
        .main-tool-card input[type="text"] {
            width: 100%;
            padding: 0.75rem 1rem;
            border-radius: 0.5rem;
            background-color: var(--card-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            color: white;
            outline: none;
        }
        .main-tool-card input[type="text"]::placeholder { color: var(--text-secondary); }
        .main-tool-card input[type="text"]:focus { border-color: var(--border-color); box-shadow: none; }
        .main-tool-card .check-button {
            padding: 0.75rem 1.5rem;
            background-color: var(--card-bg);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            border: 1px solid var(--border-color);
            color: white;
            border-radius: 0.5rem;
            font-weight: 500;
            transition: all 0.3s;
            cursor: pointer;
        }
        .main-tool-card .check-button:hover { background-color: var(--hover-bg); color: var(--hover-text); }
        .main-tool-card .check-button:disabled { opacity: 0.5; cursor: not-allowed; }
        .main-tool-card .check-button .loading-content { display: flex; align-items: center; gap: 0.5rem; }
        .main-tool-card .check-button .loading-spinner { animation: spin 1s linear infinite; height: 1rem; width: 1rem; }

        .results-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
        .results-section { display: flex; flex-direction: column; gap: 1rem; }
        .results-section h4 { color: white; font-size: 1.125rem; font-weight: 600; border-bottom: 1px solid #27272a; padding-bottom: 0.5rem; }
        .results-section .info-items { display: flex; flex-direction: column; gap: 0.75rem; }
        .results-section .info-item span { color: var(--text-muted); font-size: 0.875rem; display: block; }
        .results-section .info-item p { color: white; font-weight: 500; word-break: break-all; }

        @media (min-width: 640px) {
            .card.info-card span { font-size: 1rem; }
            .main-tool-card .input-section { flex-direction: row; }
        }

        @media (min-width: 768px) {
            .results-grid { grid-template-columns: repeat(2, 1fr); }
        }

        @media (min-width: 1024px) {
            .mobile-header { display: none; }
            .sidebar {
                position: fixed;
                inset: 1rem auto 1rem 1rem;
                width: 20rem;
                height: calc(100vh - 2rem);
                background-color: rgba(9, 9, 11, 0.8);
                border: 1px solid var(--border-color);
                border-radius: 1rem;
                box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
                transform: translateX(0);
                transition: none;
            }
            .sidebar .mobile-header-inner { display: none; }
            .sidebar .desktop-logo-container { display: block; }
            .mobile-overlay { display: none; }
            .main-content { margin-left: 21rem; }
            .main-content .content-wrapper { padding: 1.5rem 1.5rem 1.5rem 1rem; }
            .banner-item { height: 35px; }
            .tools-layout { flex-direction: row; }
            .tool-selector-card { width: 20rem; }
        }

        @media (min-width: 1280px) {
            .banner-container {
                display: grid;
                grid-template-columns: repeat(2, 1fr);
                gap: 1rem;
            }
            .banner-item { height: 40px; }
        }
        
        @media (min-width: 1536px) {
             .banner-container {
                grid-template-columns: repeat(4, 1fr);
            }
        }