:root {
            --primary: #2563eb;
            --primary-hover: #1d4ed8;
            --bg: #f8fafc;
            --surface: #ffffff;
            --text: #1e293b;
            --muted: #64748b;
            --border: #e2e8f0;
            
            /* Соцсети */
            --vk-color: #0077FF;
            --yandex-color: #fc0; /* Желтый */
            --yandex-text: #000;
        }

        * { box-sizing: border-box; margin: 0; padding: 0; }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
            color: var(--text);
            background-color: var(--bg);
            line-height: 1.6;
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center; /* Центрируем форму по вертикали и горизонтали */
        }
        
        a { text-decoration: none; color: inherit; }

        .container {
            width: 100%;
            max-width: 480px; /* Оптимальная ширина для форм */
            padding: 0 20px;
        }

        /* Card */
        .login-card {
            background: var(--surface);
            padding: 40px;
            border-radius: 16px;
            border: 2px solid var(--border);
        }

        h1 { 
            margin-bottom: 8px; 
            color: var(--gray-dark, #1e293b); 
            font-size: 1.5rem;
        }
        .subtitle { 
            color: var(--muted); 
            margin-bottom: 32px; 
            font-size: 0.95rem; 
        }

        /* Inputs */
        .form-group { margin-bottom: 20px; }
        label { display: block; margin-bottom: 8px; font-weight: 600; font-size: 0.85rem; color: var(--text); }
        .input-control {
            width: 100%;
            padding: 12px 16px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: #fff;
            font-size: 1rem;
            transition: all 0.2s;
            outline: none;
        }
        .input-control:focus {
            border-color: var(--primary);
            box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
        }

        /* Buttons */
        .btn {
            width: 100%;
            padding: 14px;
            border-radius: 8px;
            font-weight: 600;
            cursor: pointer;
            border: none;
            transition: all 0.2s;
            font-size: 1rem;
            text-align: center;
        }
        
        .btn-primary {
            background: var(--primary);
            color: white;
        }
        .btn-primary:hover {
            background: var(--primary-hover);
            transform: translateY(-1px);
        }

        /* Social Buttons */
        .social-buttons {
            display: grid;
            gap: 12px;
            margin: 32px 0;
        }
        .btn-social {
            display: flex;
            align-items: center;
            justify-content: center;
            gap: 12px;
            padding: 12px;
            border-radius: 8px;
            font-weight: 600;
            font-size: 0.95rem;
            border: 1px solid transparent;
        }
        
        .btn-vk {
            background: #f0f4ff; /* Легкий голубой фон */
            color: var(--vk-color);
            border-color: var(--vk-color);
        }
        .btn-vk:hover { background: #e0eaff; }

        .btn-yandex {
            background: #fff;
            color: var(--yandex-text);
            border-color: #ccc;
        }

        /* Footer Links */
        .footer-links {
            margin-top: 24px;
            text-align: center;
            font-size: 0.85rem;
            color: var(--muted);
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }
        .footer-links a:hover { color: var(--primary); }

        @media (max-width: 480px) {
            .login-card { padding: 24px; }
            h1 { font-size: 1.3rem; }
        }