* {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        :root {
            --primary: #2D5BFF;
            --primary-dark: #1E3FCC;
            --accent: #FF6B35;
            --background: #F8F9FC;
            --surface: #FFFFFF;
            --text-primary: #1A1D29;
            --text-secondary: #6B7280;
            --border: #E5E7EB;
            --error: #EF4444;
            --success: #10B981;
        }

        body {
            font-family: 'DM Sans', sans-serif;
            background: var(--background);
            min-height: 100vh;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            position: relative;
            overflow: hidden;
        }

        body::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 800px;
            height: 800px;
            background: radial-gradient(circle, rgba(45, 91, 255, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            animation: float 20s ease-in-out infinite;
        }

        body::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -15%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 107, 53, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            animation: float 15s ease-in-out infinite reverse;
        }

        @keyframes float {
            0%, 100% { transform: translate(0, 0) scale(1); }
            50% { transform: translate(30px, -30px) scale(1.05); }
        }

        .login-container {
            width: 100%;
            max-width: 1100px;
            display: grid;
            grid-template-columns: 1fr 1fr;
            background: var(--surface);
            border-radius: 24px;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
            overflow: hidden;
            position: relative;
            z-index: 1;
            animation: slideUp 0.6s ease-out;
        }

        @keyframes slideUp {
            from { opacity: 0; transform: translateY(30px); }
            to { opacity: 1; transform: translateY(0); }
        }

        .login-left {
            background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: space-between;
            position: relative;
            overflow: hidden;
        }

        .login-left::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 300px;
            height: 300px;
            background: rgba(255, 255, 255, 0.05);
            border-radius: 50%;
        }

        .login-left::after {
            content: '';
            position: absolute;
            bottom: -50px;
            left: -50px;
            width: 200px;
            height: 200px;
            background: rgba(255, 255, 255, 0.03);
            border-radius: 50%;
        }

        .brand {
            position: relative;
            z-index: 1;
        }

        .brand h1 {
            font-family: 'Archivo', sans-serif;
            font-weight: 700;
            font-size: 32px;
            color: white;
            margin-bottom: 12px;
            letter-spacing: -0.5px;
        }

        .brand p {
            color: rgba(255, 255, 255, 0.8);
            font-size: 16px;
            line-height: 1.6;
        }

        .features {
            position: relative;
            z-index: 1;
            margin-top: 40px;
        }

        .feature-item {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 24px;
            animation: fadeInLeft 0.6s ease-out forwards;
            opacity: 0;
        }

        .feature-item:nth-child(1) { animation-delay: 0.2s; }
        .feature-item:nth-child(2) { animation-delay: 0.3s; }
        .feature-item:nth-child(3) { animation-delay: 0.4s; }

        @keyframes fadeInLeft {
            from { opacity: 0; transform: translateX(-20px); }
            to { opacity: 1; transform: translateX(0); }
        }

        .feature-icon {
            width: 48px;
            height: 48px;
            background: rgba(255, 255, 255, 0.1);
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            flex-shrink: 0;
            backdrop-filter: blur(10px);
        }

        .feature-icon svg {
            width: 24px;
            height: 24px;
            stroke: white;
        }

        .feature-content h3 {
            color: white;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 4px;
        }

        .feature-content p {
            color: rgba(255, 255, 255, 0.7);
            font-size: 14px;
        }

        .login-right {
            padding: 60px 50px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }

        .login-header {
            margin-bottom: 40px;
        }

        .login-header h2 {
            font-family: 'Archivo', sans-serif;
            font-size: 32px;
            font-weight: 700;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: -0.5px;
        }

        .login-header p {
            color: var(--text-secondary);
            font-size: 15px;
        }

        .form-group {
            margin-bottom: 24px;
        }

        .form-group label {
            display: block;
            margin-bottom: 8px;
            color: var(--text-primary);
            font-size: 14px;
            font-weight: 500;
        }

        .input-wrapper {
            position: relative;
        }

        .input-wrapper input {
            width: 100%;
            padding: 14px 16px;
            padding-left: 46px;
            border: 2px solid var(--border);
            border-radius: 12px;
            font-size: 15px;
            color: var(--text-primary);
            transition: all 0.3s ease;
            font-family: 'DM Sans', sans-serif;
            background: var(--surface);
        }

        .input-wrapper input:focus {
            outline: none;
            border-color: var(--primary);
            box-shadow: 0 0 0 4px rgba(45, 91, 255, 0.1);
        }

        .input-wrapper input::placeholder {
            color: var(--text-secondary);
        }

        .input-wrapper input.is-invalid {
            border-color: var(--error);
        }

        .input-icon {
            position: absolute;
            left: 16px;
            top: 50%;
            transform: translateY(-50%);
            width: 20px;
            height: 20px;
            pointer-events: none;
        }

        .input-icon svg {
            width: 100%;
            height: 100%;
            stroke: var(--text-secondary);
        }

        .input-wrapper input:focus + .input-icon svg {
            stroke: var(--primary);
        }

        .toggle-password {
            position: absolute;
            right: 16px;
            top: 50%;
            transform: translateY(-50%);
            background: none;
            border: none;
            cursor: pointer;
            padding: 4px;
            display: flex;
            align-items: center;
            justify-content: center;
        }

        .toggle-password svg {
            width: 20px;
            height: 20px;
            stroke: var(--text-secondary);
            transition: stroke 0.3s ease;
        }

        .toggle-password:hover svg {
            stroke: var(--text-primary);
        }

        

        .login-btn {
            width: 100%;
            padding: 14px 24px;
            background: var(--primary);
            color: white;
            border: none;
            border-radius: 12px;
            font-size: 16px;
            font-weight: 600;
            cursor: pointer;
            transition: all 0.3s ease;
            font-family: 'DM Sans', sans-serif;
            position: relative;
            overflow: hidden;
        }

        .login-btn::before {
            content: '';
            position: absolute;
            top: 50%;
            left: 50%;
            width: 0;
            height: 0;
            border-radius: 50%;
            background: rgba(255, 255, 255, 0.2);
            transform: translate(-50%, -50%);
            transition: width 0.6s ease, height 0.6s ease;
        }

        .login-btn:hover::before {
            width: 300px;
            height: 300px;
        }

        .login-btn:hover {
            background: var(--primary-dark);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(45, 91, 255, 0.3);
        }

        .login-btn:active {
            transform: translateY(0);
        }

        .login-btn span {
            position: relative;
            z-index: 1;
        }

        .login-btn.loading {
            pointer-events: none;
            opacity: 0.7;
        }

        .login-btn.loading span::after {
            content: '';
            display: inline-block;
            width: 16px;
            height: 16px;
            margin-left: 10px;
            border: 2px solid rgba(255, 255, 255, 0.3);
            border-top-color: white;
            border-radius: 50%;
            animation: spin 0.6s linear infinite;
        }

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

        .error-message {
            display: none;
            padding: 12px 16px;
            background: rgba(239, 68, 68, 0.1);
            border: 1px solid var(--error);
            border-radius: 8px;
            color: var(--error);
            font-size: 14px;
            margin-bottom: 20px;
            animation: shake 0.5s ease;
        }

        .error-message.show {
            display: block;
        }

        @keyframes shake {
            0%, 100% { transform: translateX(0); }
            25% { transform: translateX(-10px); }
            75% { transform: translateX(10px); }
        }

        .invalid-feedback {
            color: var(--error);
            font-size: 13px;
            margin-top: 6px;
            display: block;
        }

        @media (max-width: 968px) {
            .login-container {
                grid-template-columns: 1fr;
            }

            .login-left {
                padding: 40px 30px;
            }

            .features {
                display: grid;
                grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
                gap: 20px;
                margin-top: 30px;
            }

            .login-right {
                padding: 40px 30px;
            }

            .brand h1 {
                font-size: 28px;
            }

            .login-header h2 {
                font-size: 28px;
            }
        }

        @media (max-width: 640px) {
            body {
                padding: 0;
            }

            .login-container {
                border-radius: 0;
                min-height: 100vh;
            }

            .login-left,
            .login-right {
                padding: 30px 20px;
            }

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

            .brand h1 {
                font-size: 24px;
            }

            .login-header h2 {
                font-size: 24px;
            }
        }